Annotation of loncom/interface/lonsearchcat.pm, revision 1.279
1.98 harris41 1: # The LearningOnline Network with CAPA
1.108 harris41 2: # Search Catalog
3: #
1.279 ! raeburn 4: # $Id: lonsearchcat.pm,v 1.278 2006/12/06 22:22:37 albertel Exp $
1.108 harris41 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
1.98 harris41 14: #
1.108 harris41 15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
1.1 www 27: #
1.121 matthew 28: ###############################################################################
29: ###############################################################################
30:
31: =pod
32:
33: =head1 NAME
34:
1.140 matthew 35: lonsearchcat - LONCAPA Search Interface
1.121 matthew 36:
37: =head1 SYNOPSIS
38:
39: Search interface to LON-CAPAs digital library
40:
41: =head1 DESCRIPTION
42:
43: This module enables searching for a distributed browseable catalog.
1.104 harris41 44:
1.121 matthew 45: This is part of the LearningOnline Network with CAPA project
46: described at http://www.lon-capa.org.
47:
48: lonsearchcat presents the user with an interface to search the LON-CAPA
49: digital library. lonsearchcat also initiates the execution of a search
50: by sending the search parameters to LON-CAPA servers. The progress of
1.205 www 51: search (on a server basis) is displayed to the user in a separate window.
1.121 matthew 52:
53: =head1 Internals
54:
55: =over 4
56:
57: =cut
58:
59: ###############################################################################
1.98 harris41 60: ###############################################################################
1.121 matthew 61:
1.1 www 62: package Apache::lonsearchcat;
63:
64: use strict;
1.167 www 65: use Apache::Constants qw(:common :http);
1.243 albertel 66: use Apache::lonnet;
1.6 harris41 67: use Apache::File();
1.7 harris41 68: use CGI qw(:standard);
1.41 harris41 69: use Text::Query;
1.101 harris41 70: use GDBM_File;
1.112 harris41 71: use Apache::loncommon();
1.144 matthew 72: use Apache::lonmysql();
1.200 www 73: use Apache::lonmeta;
74: use Apache::lonhtmlcommon;
1.186 www 75: use Apache::lonlocal;
1.204 matthew 76: use LONCAPA::lonmetadata();
1.212 matthew 77: use HTML::Entities();
1.228 matthew 78: use Parse::RecDescent;
1.231 raeburn 79: use Apache::lonnavmaps;
1.255 www 80: use Apache::lonindexer();
1.265 www 81: use LONCAPA;
1.1 www 82:
1.121 matthew 83: ######################################################################
84: ######################################################################
1.196 matthew 85: ##
86: ## Global variables
87: ##
1.121 matthew 88: ######################################################################
89: ######################################################################
1.196 matthew 90: my %groupsearch_db; # Database hash used to save values for the
91: # groupsearch RAT interface.
92: my %persistent_db; # gdbm hash which holds data which is supposed to
93: # persist across calls to lonsearchcat.pm
1.121 matthew 94:
1.200 www 95: # The different view modes and associated functions
96:
97: my %Views = ("detailed" => \&detailed_citation_view,
1.255 www 98: "detailedpreview" => \&detailed_citation_preview,
1.200 www 99: "summary" => \&summary_view,
1.255 www 100: "summarypreview" => \&summary_preview,
1.200 www 101: "fielded" => \&fielded_format_view,
102: "xml" => \&xml_sgml_view,
103: "compact" => \&compact_view);
1.101 harris41 104:
1.121 matthew 105: ######################################################################
106: ######################################################################
1.98 harris41 107: sub handler {
108: my $r = shift;
1.197 www 109: # &set_defaults();
1.196 matthew 110: #
111: # set form defaults
1.145 matthew 112: #
1.196 matthew 113: my $hidden_fields;# Hold all the hidden fields used to keep track
114: # of the search system state
115: my $importbutton; # button to take the selected results and go to group
116: # sorting
117: my $diropendb; # The full path to the (temporary) search database file.
118: # This is set and used in &handler() and is also used in
119: # &output_results().
1.157 www 120:
121: my $loaderror=&Apache::lonnet::overloaderror($r);
122: if ($loaderror) { return $loaderror; }
1.221 matthew 123: #
1.145 matthew 124: my $closebutton; # button that closes the search window
125: # This button is different for the RAT compared to
126: # normal invocation.
127: #
1.186 www 128: &Apache::loncommon::content_type($r,'text/html');
1.98 harris41 129: $r->send_http_header;
130: return OK if $r->header_only;
1.156 matthew 131: ##
132: ## Prevent caching of the search interface window. Hopefully this means
133: ## we will get the launch=1 passed in a little more.
134: &Apache::loncommon::no_cache($r);
1.145 matthew 135: ##
136: ## Pick up form fields passed in the links.
137: ##
138: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.146 matthew 139: ['catalogmode','launch','acts','mode','form','element','pause',
1.158 matthew 140: 'phase','persistent_db_id','table','start','show',
1.276 raeburn 141: 'cleargroupsort','titleelement','area']);
1.146 matthew 142: ##
143: ## The following is a trick - we wait a few seconds if asked to so
144: ## the daemon running the search can get ahead of the daemon
145: ## printing the results. We only need (theoretically) to do
146: ## this once, so the pause indicator is deleted
147: ##
1.243 albertel 148: if (exists($env{'form.pause'})) {
1.181 matthew 149: sleep(1);
1.243 albertel 150: delete($env{'form.pause'});
1.146 matthew 151: }
1.143 matthew 152: ##
153: ## Initialize global variables
154: ##
1.121 matthew 155: my $domain = $r->dir_config('lonDefDomain');
1.213 matthew 156: $diropendb= "/home/httpd/perl/tmp/".
1.266 www 157: "$env{'user.domain'}_$env{'user.name'}_sel_res.db";
1.145 matthew 158: #
159: # set the name of the persistent database
1.243 albertel 160: # $env{'form.persistent_db_id'} can only have digits in it.
161: if (! exists($env{'form.persistent_db_id'}) ||
162: ($env{'form.persistent_db_id'} =~ /\D/) ||
163: ($env{'form.launch'} eq '1')) {
164: $env{'form.persistent_db_id'} = time;
1.145 matthew 165: }
1.257 albertel 166:
1.146 matthew 167: my $persistent_db_file = "/home/httpd/perl/tmp/".
1.265 www 168: &escape($domain).
169: '_'.&escape($env{'user.name'}).
1.243 albertel 170: '_'.$env{'form.persistent_db_id'}.'_persistent_search.db';
1.146 matthew 171: ##
1.209 matthew 172: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.277 raeburn 173:
174: my @allowed_searches = ('portfolio');
175: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
176: push(@allowed_searches,'res');
177: }
1.243 albertel 178: if (exists($env{'request.course.id'}) && $env{'request.course.id'} ne '') {
1.277 raeburn 179: push(@allowed_searches,'course');
180: }
181: my $crumb_text = 'Portfolio Search';
182: if (@allowed_searches == 3) {
183: $crumb_text = 'Course, Portfolio and Catalog Search';
184: } elsif (@allowed_searches ==2) {
185: if (grep(/^res$/,@allowed_searches)) {
186: $crumb_text = 'Portfolio and Catalog Search';
187: } elsif (grep(/^course$/,@allowed_searches)) {
188: $crumb_text = 'Portfolio and Course Search';
189: }
190: }
191: &Apache::lonhtmlcommon::add_breadcrumb
192: ({href=>'/adm/searchcat?'.
193: 'catalogmode='.$env{'form.catalogmode'}.
194: '&launch='.$env{'form.launch'}.
195: '&mode='.$env{'form.mode'},
196: text=>"$crumb_text",
1.227 matthew 197: target=>'_top',
1.209 matthew 198: bug=>'Searching',});
199: #
1.243 albertel 200: if ($env{'form.phase'} !~ m/(basic|adv|course)_search/) {
1.221 matthew 201: if (! &get_persistent_form_data($persistent_db_file)) {
1.243 albertel 202: if ($env{'form.phase'} =~ /(run_search|results)/) {
1.221 matthew 203: &Apache::lonnet::logthis('lonsearchcat:'.
204: 'Unable to recover data from '.
205: $persistent_db_file);
1.256 albertel 206: my $msg =
207: 'We were unable to retrieve data describing your search. '.
208: 'This is a serious error and has been logged. '.
209: 'Please alert your LON-CAPA administrator.';
1.261 albertel 210: &Apache::loncommon::simple_error_page($r,'Search Error',
211: $msg);
212: return OK;
1.221 matthew 213: }
1.150 matthew 214: }
1.221 matthew 215: } else {
216: &clean_up_environment();
1.147 matthew 217: }
1.124 matthew 218: ##
1.143 matthew 219: ## Clear out old values from groupsearch database
1.124 matthew 220: ##
1.146 matthew 221: untie %groupsearch_db if (tied(%groupsearch_db));
1.243 albertel 222: if (($env{'form.cleargroupsort'} eq '1') ||
223: (($env{'form.launch'} eq '1') &&
1.267 www 224: ($env{'form.catalogmode'} eq 'import'))) {
1.148 matthew 225: if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.101 harris41 226: &start_fresh_session();
1.142 matthew 227: untie %groupsearch_db;
1.243 albertel 228: delete($env{'form.cleargroupsort'});
1.122 matthew 229: } else {
1.155 matthew 230: # This is a stupid error to give to the user.
231: # It really tells them nothing.
1.256 albertel 232: my $msg = 'Unable to tie hash to db file.';
1.261 albertel 233: &Apache::loncommon::simple_error_page($r,'Search Error',
234: $msg);
235: return OK;
1.101 harris41 236: }
237: }
1.124 matthew 238: ##
1.150 matthew 239: ## Configure hidden fields
1.124 matthew 240: ##
1.145 matthew 241: $hidden_fields = '<input type="hidden" name="persistent_db_id" value="'.
1.243 albertel 242: $env{'form.persistent_db_id'}.'" />'."\n";
243: if (exists($env{'form.catalogmode'})) {
1.223 matthew 244: $hidden_fields .= &hidden_field('catalogmode');
1.150 matthew 245: }
1.243 albertel 246: if (exists($env{'form.form'})) {
1.223 matthew 247: $hidden_fields .= &hidden_field('form');
1.150 matthew 248: }
1.243 albertel 249: if (exists($env{'form.element'})) {
1.223 matthew 250: $hidden_fields .= &hidden_field('element');
1.150 matthew 251: }
1.243 albertel 252: if (exists($env{'form.titleelement'})) {
1.223 matthew 253: $hidden_fields .= &hidden_field('titleelement');
1.191 albertel 254: }
1.243 albertel 255: if (exists($env{'form.mode'})) {
1.223 matthew 256: $hidden_fields .= &hidden_field('mode');
1.150 matthew 257: }
1.276 raeburn 258: if (exists($env{'form.area'})) {
259: $hidden_fields .= &hidden_field('area');
260: }
1.150 matthew 261: ##
262: ## Configure dynamic components of interface
1.146 matthew 263: ##
1.243 albertel 264: if ($env{'form.catalogmode'} eq 'interactive') {
1.150 matthew 265: $closebutton="<input type='button' name='close' value='CLOSE' ";
1.243 albertel 266: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.150 matthew 267: $closebutton .="onClick='parent.close()'";
268: } else {
269: $closebutton .="onClick='self.close()'";
270: }
271: $closebutton .=">\n";
1.267 www 272: } elsif ($env{'form.catalogmode'} eq 'import') {
1.150 matthew 273: $closebutton="<input type='button' name='close' value='CLOSE' ";
1.243 albertel 274: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.150 matthew 275: $closebutton .="onClick='parent.close()'";
276: } else {
277: $closebutton .="onClick='self.close()'";
278: }
279: $closebutton .= ">";
1.98 harris41 280: $importbutton=<<END;
281: <input type='button' name='import' value='IMPORT'
282: onClick='javascript:select_group()'>
283: END
1.146 matthew 284: } else {
285: $closebutton = '';
286: $importbutton = '';
1.98 harris41 287: }
1.124 matthew 288: ##
1.146 matthew 289: ## Sanity checks on form elements
1.124 matthew 290: ##
1.243 albertel 291: if (!defined($env{'form.viewselect'})) {
1.248 www 292: $env{'form.viewselect'} ="summary";
1.146 matthew 293: }
1.243 albertel 294: $env{'form.phase'} = 'disp_basic' if (! exists($env{'form.phase'}));
295: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
1.209 matthew 296: #
1.243 albertel 297: $env{'form.searchmode'} = 'basic' if (! exists($env{'form.searchmode'}));
298: if ($env{'form.phase'} eq 'adv_search' ||
299: $env{'form.phase'} eq 'disp_adv') {
300: $env{'form.searchmode'} = 'advanced';
301: } elsif ($env{'form.phase'} eq 'course_search') {
302: $env{'form.searchmode'} = 'course_search';
1.209 matthew 303: }
304: #
1.243 albertel 305: if ($env{'form.searchmode'} eq 'advanced') {
1.277 raeburn 306: my $srchtype = 'Catalog';
307: if ($env{'form.area'} eq 'portfolio') {
308: $srchtype = 'Portfolio';
309: }
1.209 matthew 310: &Apache::lonhtmlcommon::add_breadcrumb
311: ({href=>'/adm/searchcat?phase=disp_adv&'.
1.243 albertel 312: 'catalogmode='.$env{'form.catalogmode'}.
313: '&launch='.$env{'form.launch'}.
314: '&mode='.$env{'form.mode'},
1.277 raeburn 315: text=>"Advanced $srchtype Search",
1.209 matthew 316: bug=>'Searching',});
1.243 albertel 317: } elsif ($env{'form.searchmode'} eq 'course search') {
1.209 matthew 318: &Apache::lonhtmlcommon::add_breadcrumb
319: ({href=>'/adm/searchcat?phase=disp_adv&'.
1.243 albertel 320: 'catalogmode='.$env{'form.catalogmode'}.
321: '&launch='.$env{'form.launch'}.
322: '&mode='.$env{'form.mode'},
1.209 matthew 323: text=>"Course Search",
324: bug=>'Searching',});
325: }
1.146 matthew 326: ##
327: ## Switch on the phase
328: ##
1.243 albertel 329: if ($env{'form.phase'} eq 'disp_basic') {
1.196 matthew 330: &print_basic_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 331: } elsif ($env{'form.phase'} eq 'disp_adv') {
1.196 matthew 332: &print_advanced_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 333: } elsif ($env{'form.phase'} eq 'results') {
1.276 raeburn 334: &display_results($r,$importbutton,$closebutton,$diropendb,
335: $env{'form.area'});
1.243 albertel 336: } elsif ($env{'form.phase'} =~ /^(sort|run_search)$/) {
1.146 matthew 337: my ($query,$customquery,$customshow,$libraries,$pretty_string) =
338: &get_persistent_data($persistent_db_file,
339: ['query','customquery','customshow',
340: 'libraries','pretty_string']);
1.243 albertel 341: if ($env{'form.phase'} eq 'sort') {
1.151 matthew 342: &print_sort_form($r,$pretty_string);
1.243 albertel 343: } elsif ($env{'form.phase'} eq 'run_search') {
1.151 matthew 344: &run_search($r,$query,$customquery,$customshow,
1.276 raeburn 345: $libraries,$pretty_string,$env{'form.area'});
1.151 matthew 346: }
1.243 albertel 347: } elsif ($env{'form.phase'} eq 'course_search') {
1.167 www 348: &course_search($r);
1.243 albertel 349: } elsif(($env{'form.phase'} eq 'basic_search') ||
350: ($env{'form.phase'} eq 'adv_search')) {
1.228 matthew 351: #
352: # We are running a search, try to parse it
353: my ($query,$customquery,$customshow,$libraries) =
354: (undef,undef,undef,undef);
355: my $pretty_string;
1.243 albertel 356: if ($env{'form.phase'} eq 'basic_search') {
1.228 matthew 357: ($query,$pretty_string,$libraries) =
358: &parse_basic_search($r,$closebutton,$hidden_fields);
359: return OK if (! defined($query));
1.243 albertel 360: &make_persistent({ basicexp => $env{'form.basicexp'}},
1.228 matthew 361: $persistent_db_file);
362: } else { # Advanced search
363: ($query,$customquery,$customshow,$libraries,$pretty_string)
364: = &parse_advanced_search($r,$closebutton,$hidden_fields);
365: return OK if (! defined($query));
366: }
367: &make_persistent({ query => $query,
368: customquery => $customquery,
369: customshow => $customshow,
370: libraries => $libraries,
371: pretty_string => $pretty_string },
372: $persistent_db_file);
373: #
1.146 matthew 374: # Set up table
1.276 raeburn 375: if (! defined(&create_results_table($env{'form.area'}))) {
1.198 www 376: my $errorstring=&Apache::lonmysql::get_error();
1.211 matthew 377: &Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
378: 'needed table. lonmysql error:'.
379: $errorstring);
1.256 albertel 380:
381: my $msg =
382: 'Unable to create table in which to store search results. '.
383: 'The search has been aborted.';
1.261 albertel 384: &Apache::loncommon::simple_error_page($r,'Search Error',
385: $msg);
386: return OK;
1.146 matthew 387: }
1.243 albertel 388: delete($env{'form.launch'});
1.146 matthew 389: if (! &make_form_data_persistent($r,$persistent_db_file)) {
1.256 albertel 390: my $msg=
391: 'Unable to properly store search information. '.
392: 'The search has been aborted.';
1.261 albertel 393: &Apache::loncommon::simple_error_page($r,'Search Error',
394: $msg);
395: return OK;
1.256 albertel 396: }
1.145 matthew 397: ##
1.146 matthew 398: ## Print out the frames interface
1.145 matthew 399: ##
1.228 matthew 400: if (defined($query)) {
401: &print_frames_interface($r);
402: }
1.124 matthew 403: }
404: return OK;
405: }
1.98 harris41 406:
1.221 matthew 407: #
408: # The mechanism used to store values away and retrieve them does not
409: # handle the case of missing environment variables being significant.
410: #
411: # This routine sets non existant checkbox form elements to ''.
412: #
413: sub clean_up_environment {
1.243 albertel 414: if ($env{'form.phase'} eq 'basic_search') {
415: if (! exists($env{'form.related'})) {
416: $env{'form.related'} = '';
1.221 matthew 417: }
1.243 albertel 418: if (! exists($env{'form.domains'})) {
419: $env{'form.domains'} = '';
1.221 matthew 420: }
1.243 albertel 421: } elsif ($env{'form.phase'} eq 'adv_search') {
1.221 matthew 422: foreach my $field ('title','keywords','notes',
423: 'abstract','standards','mime') {
1.243 albertel 424: if (! exists($env{'form.'.$field.'_related'})) {
425: $env{'form.'.$field.'_related'} = '';
1.221 matthew 426: }
427: }
1.243 albertel 428: } elsif ($env{'form.phase'} eq 'course_search') {
429: if (! exists($env{'form.crsrelated'})) {
430: $env{'form.crsrelated'} = '';
1.221 matthew 431: }
432: }
433: }
434:
1.223 matthew 435: sub hidden_field {
436: my ($name,$value) = @_;
437: if (! defined($value)) {
1.243 albertel 438: $value = $env{'form.'.$name};
1.223 matthew 439: }
440: return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/;
441: }
442:
1.124 matthew 443: ######################################################################
444: ######################################################################
1.196 matthew 445: ##
446: ## Course Search
447: ##
448: ######################################################################
449: ######################################################################
450: { # Scope the course search to avoid global variables
451: #
452: # Variables For course search
1.236 albertel 453: my %alreadyseen;
1.196 matthew 454: my %hash;
455: my $totalfound;
1.124 matthew 456:
1.235 albertel 457: sub make_symb {
458: my ($id)=@_;
459: my ($mapid,$resid)=split(/\./,$id);
460: my $map=$hash{'map_id_'.$mapid};
461: my $res=$hash{'src_'.$id};
462: my $symb=&Apache::lonnet::encode_symb($map,$resid,$res);
463: return $symb;
464: }
465:
1.167 www 466: sub course_search {
467: my $r=shift;
1.243 albertel 468: my $pretty_search_string = '<b>'.$env{'form.courseexp'}.'</b>';
469: my $search_string = $env{'form.courseexp'};
1.167 www 470: my @New_Words;
1.236 albertel 471: undef(%alreadyseen);
1.243 albertel 472: if ($env{'form.crsrelated'}) {
473: ($search_string,@New_Words) = &related_version($env{'form.courseexp'});
1.167 www 474: if (@New_Words) {
1.200 www 475: $pretty_search_string .= ' '.&mt("with related words").": <b>@New_Words</b>.";
1.167 www 476: } else {
1.200 www 477: $pretty_search_string .= ' '.&mt('with no related words').".";
1.167 www 478: }
479: }
1.243 albertel 480: my $fulltext=$env{'form.crsfulltext'};
481: my $discuss=$env{'form.crsdiscuss'};
1.167 www 482: my @allwords=($search_string,@New_Words);
1.169 www 483: $totalfound=0;
1.256 albertel 484: $r->print(&Apache::loncommon::start_page('Course Search').
485: '<hr /><center><font size="+2" face="arial">'.
486: $pretty_search_string.'</font></center>'.
487: '<hr /><b>'.&mt('Course content').':</b><br />');
1.167 www 488: $r->rflush();
489: # ======================================================= Go through the course
1.169 www 490: my $c=$r->connection;
1.243 albertel 491: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db",
1.196 matthew 492: &GDBM_READER(),0640)) {
1.235 albertel 493: foreach (sort(keys(%hash))) {
1.196 matthew 494: if ($c->aborted()) { last; }
1.235 albertel 495: if (($_=~/^src\_(.+)$/)) {
1.243 albertel 496: if ($hash{'randomout_'.$1} & !$env{'request.role.adv'}) {
1.235 albertel 497: next;
498: }
499: my $symb=&make_symb($1);
500: &checkonthis($r,$1,$hash{$_},0,&Apache::lonnet::gettitle($symb),
501: $fulltext,$symb,@allwords);
1.196 matthew 502: }
503: }
504: untie(%hash);
505: }
1.169 www 506: unless ($totalfound) {
1.231 raeburn 507: $r->print('<p>'.&mt('No matches found in resources').'.</p>');
1.169 www 508: }
1.231 raeburn 509:
510: # Check discussions if requested
511: if ($discuss) {
512: my $totaldiscussions = 0;
513: $r->print('<br /><br /><b>'.&mt('Discussion postings').':</b><br />');
514: my $navmap = Apache::lonnavmaps::navmap->new();
515: my @allres=$navmap->retrieveResources();
516: my %discussiontime = &Apache::lonnet::dump('discussiontimes',
1.243 albertel 517: $env{'course.'.$env{'request.course.id'}.'.domain'},
518: $env{'course.'.$env{'request.course.id'}.'.num'});
1.231 raeburn 519: foreach my $resource (@allres) {
520: my $result = '';
521: my $applies = 0;
522: my $symb = $resource->symb();
523: my $ressymb = $symb;
1.278 albertel 524: if ($symb =~ m#(___adm/$LONCAPA::domain_re/$LONCAPA::username_re)/(\d+)/bulletinboard$#) {
1.231 raeburn 525: $ressymb = 'bulletin___'.$2.$1.'/'.$2.'/bulletinboard';
526: unless ($ressymb =~ m#bulletin___\d+___adm/wrapper#) {
527: $ressymb=~s#(bulletin___\d+___)#$1adm/wrapper/#;
528: }
529: }
530: if (defined($discussiontime{$ressymb})) {
1.243 albertel 531: my %contrib = &Apache::lonnet::restore($ressymb,$env{'request.course.id'},
532: $env{'course.'.$env{'request.course.id'}.'.domain'},
533: $env{'course.'.$env{'request.course.id'}.'.num'});
1.231 raeburn 534: if ($contrib{'version'}) {
535: for (my $id=1;$id<=$contrib{'version'};$id++) {
536: unless (($contrib{'hidden'}=~/\.$id\./) || ($contrib{'deleted'}=~/\.$id\./)) {
537: if ($contrib{$id.':subject'}) {
538: $result .= $contrib{$id.':subject'};
539: }
540: if ($contrib{$id.':message'}) {
541: $result .= $contrib{$id.':message'};
542: }
543: if ($contrib{$id,':attachmenturl'}) {
544: if ($contrib{$id,':attachmenturl'} =~ m-/([^/]+)$-) {
545: $result .= $1;
546: }
547: }
548: $applies = &checkwords($result,$applies,@allwords);
549: }
550: }
551: }
552: }
553: # Does this discussion apply?
554: if ($applies) {
555: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($ressymb);
556: my $disctype = &mt('resource');
557: if ($url =~ m#/bulletinboard$#) {
558: if ($url =~m#^adm/wrapper/adm/.*/bulletinboard$#) {
559: $url =~s#^adm/wrapper##;
560: }
561: $disctype = &mt('bulletin board');
562: } else {
563: $url = '/res/'.$url;
564: }
565: if ($url =~ /\?/) {
566: $url .= '&symb=';
567: } else {
568: $url .= '?symb=';
569: }
1.265 www 570: $url .= &escape($resource->symb());
1.231 raeburn 571: my $title = $resource->compTitle();
572: $r->print('<br /><a href="'.$url.'" target="cat">'.
573: ($title?$title:$url).'</a> - '.$disctype.'<br />');
574: $totaldiscussions++;
575: } else {
576: $r->print(' .');
577: }
578: }
579: unless ($totaldiscussions) {
580: $r->print('<p>'.&mt('No matches found in postings').'.</p>');
581: }
582: }
583:
1.167 www 584: # =================================================== Done going through course
1.256 albertel 585: $r->print(&Apache::loncommon::end_page());
1.167 www 586: }
587:
588: # =============================== This pulls up a resource and its dependencies
589:
590: sub checkonthis {
1.235 albertel 591: my ($r,$id,$url,$level,$title,$fulltext,$symb,@allwords)=@_;
1.236 albertel 592: $alreadyseen{$id}=1;
593: if (&Apache::loncommon::connection_aborted($r)) { return; }
1.167 www 594: $r->rflush();
1.235 albertel 595:
596: my $result=$title.' ';
1.243 albertel 597: if ($env{'request.role.adv'} || !$hash{'encrypted_'.$id}) {
1.235 albertel 598: $result.=&Apache::lonnet::metadata($url,'title').' '.
599: &Apache::lonnet::metadata($url,'subject').' '.
600: &Apache::lonnet::metadata($url,'abstract').' '.
601: &Apache::lonnet::metadata($url,'keywords');
602: }
603: my ($extension)=($url=~/\.(\w+)$/);
604: if (&Apache::loncommon::fileembstyle($extension) eq 'ssi' &&
605: ($url) && ($fulltext)) {
1.265 www 606: $result.=&Apache::lonnet::ssi_body($url.'?symb='.&escape($symb));
1.167 www 607: }
608: $result=~s/\s+/ /gs;
1.231 raeburn 609: my $applies = 0;
610: $applies = &checkwords($result,$applies,@allwords);
1.167 www 611: # Does this resource apply?
612: if ($applies) {
613: $r->print('<br />');
614: for (my $i=0;$i<=$level*5;$i++) {
615: $r->print(' ');
616: }
1.235 albertel 617: my $href=$url;
1.243 albertel 618: if ($hash{'encrypted_'.$id} && !$env{'request.role.adv'}) {
1.235 albertel 619: $href=&Apache::lonenc::encrypted($href)
620: .'?symb='.&Apache::lonenc::encrypted($symb);
621: } else {
1.265 www 622: $href.='?symb='.&escape($symb);
1.235 albertel 623: }
624: $r->print('<a href="'.$href.'" target="cat">'.($title?$title:$url).
625: '</a><br />');
1.169 www 626: $totalfound++;
627: } elsif ($fulltext) {
628: $r->print(' .');
1.167 www 629: }
1.169 www 630: $r->rflush();
1.167 www 631: # Check also the dependencies of this one
632: my $dependencies=
633: &Apache::lonnet::metadata($url,'dependencies');
1.237 albertel 634: foreach (split(/\,/,$dependencies)) {
635: if (($_=~/^\/res\//) && (!$alreadyseen{$id})) {
1.235 albertel 636: &checkonthis($r,$id,$_,$level+1,'',$fulltext,undef,@allwords);
1.167 www 637: }
638: }
639: }
640:
1.231 raeburn 641: sub checkwords {
642: my ($result,$applies,@allwords) = @_;
643: foreach (@allwords) {
644: if ($_=~/\w/) {
645: if ($result=~/$_/si) {
646: $applies++;
647: }
648: }
649: }
650: return $applies;
651: }
652:
1.196 matthew 653: sub untiehash {
654: if (tied(%hash)) {
655: untie(%hash);
656: }
657: }
658:
659: } # End of course search scoping
660:
1.207 matthew 661:
1.167 www 662: ######################################################################
663: ######################################################################
664:
1.124 matthew 665: =pod
666:
1.146 matthew 667: =item &print_basic_search_form()
1.124 matthew 668:
1.204 matthew 669: Prints the form for the basic search. Sorry the name is so cryptic.
1.124 matthew 670:
671: =cut
672:
673: ######################################################################
674: ######################################################################
1.204 matthew 675: sub print_basic_search_form {
1.196 matthew 676: my ($r,$closebutton,$hidden_fields) = @_;
1.267 www 677: my $result = ($env{'form.catalogmode'} ne 'import');
1.256 albertel 678: my $bread_crumb =
1.263 albertel 679: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Basic',
1.267 www 680: $env{'form.catalogmode'} ne 'import');
1.256 albertel 681: my $scrout = &Apache::loncommon::start_page('Search').$bread_crumb;
1.276 raeburn 682: # Search form for resource space
1.243 albertel 683: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
1.276 raeburn 684: $scrout .= &setup_basic_search($r,'res',$hidden_fields,$closebutton);
685: $scrout .= '<hr /><br />';
1.180 matthew 686: }
1.276 raeburn 687: # Search form for accessible portfolio files
688: $scrout.= &setup_basic_search($r,'portfolio',$hidden_fields,$closebutton);
1.243 albertel 689: if ($env{'request.course.id'}) {
1.213 matthew 690: my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
1.187 www 691: 'header' => 'Course Search',
692: 'note' => 'Enter terms or phrases, then press "Search" below',
1.200 www 693: 'use' => 'use related words',
1.231 raeburn 694: 'full' =>'fulltext search (time consuming)',
695: 'disc' => 'search discussion postings (resources and bulletin boards)',
1.187 www 696: );
1.180 matthew 697: $scrout.=(<<ENDCOURSESEARCH);
1.213 matthew 698: <form name="loncapa_search" method="post" action="/adm/searchcat">
699: <center>
1.180 matthew 700: <hr />
1.187 www 701: <h1>$lt{'header'}</h1>
1.167 www 702: <input type="hidden" name="phase" value="course_search" />
703: $hidden_fields
704: <p>
1.187 www 705: $lt{'note'}.
1.167 www 706: </p>
707: <p>
708: <table>
709: <tr><td>
710: ENDCOURSESEARCH
1.180 matthew 711: $scrout.=' '.
1.200 www 712: &Apache::lonhtmlcommon::textbox('courseexp',
1.243 albertel 713: $env{'form.courseexp'},40);
1.180 matthew 714: my $crscheckbox =
1.200 www 715: &Apache::lonhtmlcommon::checkbox('crsfulltext',
1.243 albertel 716: $env{'form.crsfulltext'});
1.180 matthew 717: my $relcheckbox =
1.200 www 718: &Apache::lonhtmlcommon::checkbox('crsrelated',
1.243 albertel 719: $env{'form.crsrelated'});
1.231 raeburn 720: my $discheckbox =
721: &Apache::lonhtmlcommon::checkbox('crsdiscuss',
1.243 albertel 722: $env{'form.crsrelated'});
1.180 matthew 723: $scrout.=(<<ENDENDCOURSE);
1.167 www 724: </td></tr>
1.234 matthew 725: <tr><td><label>$relcheckbox $lt{'use'}</label></td><td></td></tr>
726: <tr><td><label>$crscheckbox $lt{'full'}</label></td><td></td></tr>
727: <tr><td><label>$discheckbox $lt{'disc'}</label></td><td></td></tr>
1.167 www 728: </table><p>
1.187 www 729: <input type="submit" name="coursesubmit" value='$lt{'srch'}' />
1.167 www 730: </p>
1.213 matthew 731: </center>
732: </form>
1.167 www 733: ENDENDCOURSE
1.180 matthew 734: }
1.256 albertel 735: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 736: $r->print($scrout);
737: return;
1.124 matthew 738: }
1.276 raeburn 739:
740: sub setup_basic_search {
741: my ($r,$area,$hidden_fields,$closebutton) = @_;
742: # Define interface components
743: my %lt = &Apache::lonlocal::texthash (
744: res => 'LON-CAPA Catalog Search',
745: portfolio => 'Portfolio Search',
746: );
747: my ($userelatedwords,$onlysearchdomain,$inclext,$adv_search_link,$scrout);
748: $userelatedwords = '<label>'.&mt('[_1] use related words',
749: &Apache::lonhtmlcommon::checkbox('related',$env{'form.related'},'related')).
750: '</label>';
751: $onlysearchdomain = '<label>'.&mt('[_1] only search domain [_2]',
752: &Apache::lonhtmlcommon::checkbox('domains',$env{'form.domains'},
753: $r->dir_config('lonDefDomain'))).
754: '</label>';
755: if ($area eq 'res') {
756: $inclext= '<label>'.&mt('[_1] include external resources',
757: &Apache::lonhtmlcommon::checkbox('inclext',$env{'form.inclext'})).
758: '</label>';
759: }
760: $adv_search_link = '<a href="/adm/searchcat?'.
761: 'phase=disp_adv&'.
762: 'catalogmode='.$env{'form.catalogmode'}.
763: '&launch='.$env{'form.launch'}.
764: '&mode='.$env{'form.mode'}.
765: '&area='.$area.
766: '">'.&mt('Advanced Search').'</a>';
767: #
768: $scrout.='<form name="loncapa_search" method="post" '.
769: 'action="/adm/searchcat">'.
770: '<input type="hidden" name="phase" value="basic_search" />'.
771: $hidden_fields;
772: if (!exists($env{'form.area'})) {
773: $scrout .= '<input type="hidden" name="area" value="'.$area.'" />';
774: }
775: #
776: $scrout .= '<center>'.$/;
777: # if ($env{'request.course.id'}) {
778: $scrout .= '<h1>'.$lt{$area}.'</h1>';
779: # } else {
780: # No need to tell them they are searching
781: # $scrout.= ('<br />'x2);
782: # }
783: $scrout.='<table>'.
784: '<tr><td align="center" valign="top">'.
785: &Apache::lonhtmlcommon::textbox('basicexp',
786: $env{'form.basicexp'},50).
787: '<br />'.
788: '<font size="-1">'.&searchhelp().'</font>'.'</td>'.
789: '<td><font size="-1">'.
790: '<nobr>'.(' 'x3).$adv_search_link.'</nobr>'.'<br />'.
791: '<nobr>'.(' 'x1).$userelatedwords.'</nobr>'.'<br />'.
792: '<nobr>'.(' 'x1).$onlysearchdomain.'</nobr>'.'<br />'.
793: '<nobr>'.(' 'x1).$inclext.'</nobr>'.'<br />'.
794: '</font></td>'.
795: '</tr>'.$/;
796: #
797: $scrout .= '<tr><td align="center" colspan="2">'.
798: '<font size="-1">'.
799: '<input type="submit" name="basicsubmit" '.
800: 'value="'.&mt('Search').'" />'.
801: (' 'x2).$closebutton.(' 'x2). &viewoptions().
802: '</font>'.
803: '</td></tr>'.$/;
804: $scrout .= '</table>'.$/.'</center>'.'</form>';
805: return $scrout;
806: }
807:
1.124 matthew 808: ######################################################################
809: ######################################################################
810:
811: =pod
812:
813: =item &advanced_search_form()
814:
1.204 matthew 815: Prints the advanced search form.
1.124 matthew 816:
817: =cut
818:
819: ######################################################################
820: ######################################################################
1.146 matthew 821: sub print_advanced_search_form{
1.196 matthew 822: my ($r,$closebutton,$hidden_fields) = @_;
1.256 albertel 823: my $bread_crumb =
1.263 albertel 824: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Advanced',
1.267 www 825: $env{'form.catalogmode'} ne 'import');
1.200 www 826: my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
827: 'reset' => 'Reset',
828: 'help' => 'Help');
1.217 matthew 829: my $advanced_buttons=<<"END";
1.200 www 830: <input type="submit" name="advancedsubmit" value='$lt{"srch"}' />
831: <input type="reset" name="reset" value='$lt{"reset"}' />
1.129 matthew 832: $closebutton
833: END
1.277 raeburn 834: my $srchtype = 'Catalog';
1.279 ! raeburn 835: my $jscript;
1.277 raeburn 836: if ($env{'form.area'} eq 'portfolio') {
837: $srchtype = 'Portfolio';
1.279 ! raeburn 838: $jscript = '<script type="text/javascript">
! 839: function additional_metadata() {
! 840: if (document.advsearch.newfield.checked) {
! 841: document.advsearch.phase.value = "disp_adv";
! 842: document.advsearch.numaddedfields.value = parseInt(document.advsearch.numaddedfields.value) +1;
! 843: document.advsearch.submit();
1.277 raeburn 844: }
1.279 ! raeburn 845: }
! 846: </script>';
! 847: }
! 848: my $scrout= &Apache::loncommon::start_page("Advanced $srchtype Search",
! 849: $jscript);
1.207 matthew 850: $scrout .= <<"ENDHEADER";
1.256 albertel 851: $bread_crumb
1.200 www 852: <form method="post" action="/adm/searchcat" name="advsearch">
1.217 matthew 853: <p>
1.129 matthew 854: $advanced_buttons
1.124 matthew 855: ENDHEADER
1.208 matthew 856: $scrout.=(' 'x2).&viewoptions().'</p>'.$hidden_fields.
857: '<input type="hidden" name="phase" value="adv_search" />';
1.200 www 858: my %fields=&Apache::lonmeta::fieldnames();
1.208 matthew 859: #
1.277 raeburn 860: $scrout .= '<h3>'.&mt('Standard [_1] Metadata',$srchtype).'</h3>';
1.217 matthew 861: $scrout .= "<table>\n";
862: $scrout .= '<tr><td> </td><td colspan="2"><font size="-1">'.
863: (' 'x2).&searchhelp()."</font></td></tr>\n";
1.208 matthew 864: my %related_word_search =
1.217 matthew 865: ('title' => 1,
866: 'author' => 0,
867: 'owner' => 0,
868: 'authorspace' => 0,
869: 'modifyinguser'=> 0,
870: 'keywords' => 1,
871: 'notes' => 1,
872: 'abstract' => 1,
873: 'standards'=> 1,
874: 'mime' => 1,
1.246 albertel 875: 'subject' => 1,
1.208 matthew 876: );
1.209 matthew 877: #
1.246 albertel 878: foreach my $field ('title','author','subject','owner','authorspace',
879: 'modifyinguser','keywords','notes','abstract',
880: 'standards','mime') {
1.208 matthew 881: $scrout.='<tr><td align="right">'.&titlefield($fields{$field}).'</td><td>'.
882: &Apache::lonmeta::prettyinput($field,
1.243 albertel 883: $env{'form.'.$field},
1.208 matthew 884: $field,
885: 'advsearch',
886: $related_word_search{$field},
887: '</td><td align="left">',
1.243 albertel 888: $env{'form.'.$field.'_related'},
1.208 matthew 889: 50);
890: if ($related_word_search{$field}) {
891: $scrout .= 'related words';
892: } else {
893: $scrout .= '</td><td> ';
894: }
895: $scrout .= '</td></tr>'.$/;
896: }
897: foreach my $field ('lowestgradelevel','highestgradelevel') {
898: $scrout.='<tr>'.
899: '<td align="right">'.&titlefield($fields{$field}).'</td>'.
900: '<td colspan="2">'.
901: &Apache::lonmeta::prettyinput($field,
1.243 albertel 902: $env{'form.'.$field},
1.208 matthew 903: $field,
904: 'advsearch',
905: 0).
906: '</td></tr>'.$/;
1.200 www 907: }
1.208 matthew 908: $scrout.='<tr><td align="right">'.
909: &titlefield(&mt('MIME Type Category')).'</td><td colspan="2">'.
1.202 www 910: &Apache::loncommon::filecategoryselect('category',
1.243 albertel 911: $env{'form.category'}).
1.208 matthew 912: '</td></tr>'.$/;
913: $scrout.='<tr><td align="right" valign="top">'.
914: &titlefield(&mt('Domains')).'</td><td colspan="2">'.
1.202 www 915: &Apache::loncommon::domain_select('domains',
1.243 albertel 916: $env{'form.domains'},1).
1.276 raeburn 917: '<br /><label>';
918: if ($env{'form.area'} ne 'portfolio') {
919: $scrout .= &mt('[_1] include external resources',
920: &Apache::lonhtmlcommon::checkbox
921: ('inclext',$env{'form.inclext'})).'</label>'
922: }
923: $scrout .= '</td></tr>'.$/;
1.217 matthew 924: #
925: # Misc metadata
1.276 raeburn 926: if ($env{'form.area'} ne 'portfolio') {
927: $scrout.='<tr><td align="right" valign="top">'.
928: &titlefield(&mt('Copyright/Distribution')).
929: '</td><td colspan="2">'.
930: &Apache::lonmeta::selectbox('copyright',
931: $env{'form.copyright'},
932: \&Apache::loncommon::copyrightdescription,
933: ( undef,
934: &Apache::loncommon::copyrightids)
935: ).'</td></tr>'.$/;
936: }
1.217 matthew 937: $scrout.='<tr><td align="right" valign="top">'.
938: &titlefield(&mt('Language')).'</td><td colspan="2">'.
939: &Apache::lonmeta::selectbox('language',
1.243 albertel 940: $env{'form.language'},
1.217 matthew 941: \&Apache::loncommon::languagedescription,
942: ('any',&Apache::loncommon::languageids)
943: ).'</td></tr>';
1.276 raeburn 944: $scrout .= "</table>\n";
945:
946:
947: if ($env{'form.area'} eq 'portfolio') {
948: # Added fields
1.279 ! raeburn 949: my $curnumadd = $env{'form.numaddedfields'};
! 950: if ($curnumadd eq '') {
! 951: $curnumadd = 1;
! 952: }
1.276 raeburn 953: $scrout .= '<h3>'.&mt('Custom Metadata fields').'</h3>';
954: $scrout .= "<table>\n";
955: $scrout .= '<tr><td> </td><td align="center">'.
956: &mt('Field Name').'</td>'.'<td align="center">'.
1.279 ! raeburn 957: &mt('Field Value(s)').'</td></tr>';
! 958:
! 959: for (my $j=0; $j<$curnumadd; $j++) {
1.276 raeburn 960: my $num = $j+1;
961: $scrout .= '<tr><td>'.&mt('Custom metadata [_1]: ',$num).
962: '</td><td align="center">'.
963: '<input type="text" name="addedfield_'.$j.
1.279 ! raeburn 964: '" size="10" value="'.$env{'form.addedfield_'.$j}.
! 965: '" /></td>'.
1.276 raeburn 966: '<td align="center"><input type="text" '.
1.279 ! raeburn 967: 'name="addedvalues_'.$j.'" size="15" value="'.
! 968: $env{'form.addedvalues_'.$j}.'" /></td></tr>';
1.276 raeburn 969: }
1.279 ! raeburn 970: $scrout .= '<tr><td align="left" colspan="3"><label>'.
! 971: '<input type="checkbox" name="newfield" '.
! 972: 'value="1" onclick="javascript:additional_metadata()" />'.
! 973: &mt('Another custom field/value pair?').'</label>'.
! 974: '<input type="hidden" name="numaddedfields" value="'.
! 975: $curnumadd.'" /></td></tr></table>';
1.276 raeburn 976: } else {
977: #
978: # Dynamic metadata
979: $scrout .= '<h3>'.&mt('Problem Statistics').'</h3>';
980: $scrout .= "<table>\n";
981: $scrout .= '<tr><td> </td><td align="center">'.
982: &mt('Minimum').'</td>'.'<td align="center">'.
983: &mt('Maximum').'</td></tr>'."\n";
984: foreach my $statistic
985: ({ name=>'count',
986: description=>'Network-wide number of accesses (hits)',},
987: { name=>'stdno',
988: description=>
1.222 matthew 989: 'Total number of students who have worked on this problem',},
1.276 raeburn 990: { name => 'avetries',
991: description=>'Average number of tries till solved',},
992: { name => 'difficulty',
993: description=>'Degree of difficulty',},
994: { name => 'disc',
995: description=>'Degree of discrimination'}) {
996: $scrout .= '<tr><td align="right">'.
997: &titlefield(&mt($statistic->{'description'})).
998: '</td><td align="center">'.
999: '<input type="text" name="'.$statistic->{'name'}.
1000: '_min" value="" size="6" /></td><td align="center">'.
1001: '<input type="text" name="'.$statistic->{'name'}.
1002: '_max" value="" size="6" /></td></tr>'.$/;
1003: }
1004: $scrout .= "</table>\n";
1005: $scrout .= '<h3>'.&mt('Evaluation Data').'</h3>';
1006: $scrout .= "<table>\n";
1007: $scrout .= '<tr><td> </td><td align="center">'.
1008: &mt('Minimum').'</td>'.'<td align="center">'.
1009: &mt('Maximum').'</td></tr>'."\n";
1010: foreach my $evaluation
1011: ( { name => 'clear',
1012: description => 'Material presented in clear way'},
1013: { name =>'depth',
1014: description => 'Material covered with sufficient depth'},
1015: { name => 'helpful',
1016: description => 'Material is helpful'},
1017: { name => 'correct',
1018: description => 'Material appears to be correct'},
1019: { name => 'technical',
1020: description => 'Resource is technically correct'}){
1021: $scrout .= '<tr><td align="right">'.
1022: &titlefield(&mt($evaluation->{'description'})).
1023: '</td><td align="center">'.
1024: '<input type="text" name="'.
1025: $evaluation->{'name'}.'_min" value="" size="6" />'.
1026: '</td><td align="center"><input type="text" name="'.
1027: $evaluation->{'name'}.'_max" value="" size="6" />'.
1028: '</td></tr>'.$/;
1029: }
1030: $scrout .= "</table>\n";
1.217 matthew 1031: }
1.216 matthew 1032: #
1033: # Creation/Modification date limits
1.217 matthew 1034: $scrout .= '<h3>'.&mt('Creation and Modification dates').'</h3>';
1.216 matthew 1035: $scrout .= "\n<table>\n";
1036: my $cafter =
1037: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
1038: 'creationdate1', # fieldname
1039: 0, # current value
1040: '', # special
1041: 1, # includeempty
1042: '', # state
1043: 1, # no_hh_mm_ss
1044: );
1045: my $cbefore =
1046: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
1047: 'creationdate2', # fieldname
1048: 0, # current value
1049: '', # special
1050: 1, # includeempty
1051: '', # state
1052: 1, # no_hh_mm_ss
1053: );
1054: $scrout .= &mt('<tr><td align="right">Created between</td>'.
1055: '<td>[_1]</td></tr>'.
1056: '<tr><td align="right">and </td>'.
1057: '<td>[_2]</td></tr>',$cafter,$cbefore);
1058: my $lafter =
1059: &Apache::lonhtmlcommon::date_setter('advsearch',
1060: 'revisiondate1',
1061: 0, # current value
1062: '', # special
1063: 1, # includeempty
1064: '', # state
1065: 1, # no_hh_mm_ss
1066: );
1067: my $lbefore =
1068: &Apache::lonhtmlcommon::date_setter('advsearch',
1069: 'revisiondate2',
1070: 0, # current value
1071: '', # special
1072: 1, # includeempty
1073: '', # state
1074: 1, # no_hh_mm_ss
1075: );
1076: $scrout .= &mt('<tr><td align="right">Last modified between </td>'.
1077: '<td>[_1]</td></tr>'.
1078: '<tr><td align="right">and</td>'.
1079: '<td>[_2]</td></tr>',$lafter,$lbefore);
1.202 www 1080: $scrout.="</table>\n";
1.124 matthew 1081: $scrout.=<<ENDDOCUMENT;
1.129 matthew 1082: $advanced_buttons
1.8 harris41 1083: </form>
1084: ENDDOCUMENT
1.256 albertel 1085: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 1086: $r->print($scrout);
1087: return;
1.124 matthew 1088: }
1.204 matthew 1089:
1.200 www 1090: ######################################################################
1091: ######################################################################
1092:
1093: =pod
1094:
1.204 matthew 1095: =item &titlefield()
1.200 www 1096:
1097: Inputs: title text
1098:
1099: Outputs: titletext with font wrapper
1100:
1101: =cut
1102:
1103: ######################################################################
1104: ######################################################################
1105: sub titlefield {
1106: my $title=shift;
1.208 matthew 1107: return $title;
1.200 www 1108: }
1.204 matthew 1109:
1.200 www 1110: ######################################################################
1111: ######################################################################
1112:
1113: =pod
1114:
1.204 matthew 1115: =item viewoptiontext()
1.200 www 1116:
1117: Inputs: codename for view option
1118:
1119: Outputs: displayed text
1120:
1121: =cut
1122:
1123: ######################################################################
1124: ######################################################################
1125: sub viewoptiontext {
1126: my $code=shift;
1.204 matthew 1127: my %desc=&Apache::lonlocal::texthash
1128: ('detailed' => "Detailed Citation View",
1129: 'xml' => 'XML/SGML',
1130: 'compact' => 'Compact View',
1131: 'fielded' => 'Fielded Format',
1.255 www 1132: 'summary' => 'Summary View',
1133: 'summarypreview' => 'Summary Preview',
1134: 'detailedpreview' => 'Detailed Citation Preview');
1.200 www 1135: return $desc{$code};
1136: }
1.204 matthew 1137:
1138: ######################################################################
1.200 www 1139: ######################################################################
1140:
1141: =pod
1142:
1.204 matthew 1143: =item viewoptions()
1.200 www 1144:
1145: Inputs: none
1146:
1147: Outputs: text for box with view options
1148:
1149: =cut
1150:
1151: ######################################################################
1152: ######################################################################
1153: sub viewoptions {
1.223 matthew 1154: my $scrout;
1.243 albertel 1155: if (! defined($env{'form.viewselect'})) {
1156: $env{'form.viewselect'}='detailed';
1.208 matthew 1157: }
1.200 www 1158: $scrout.=&Apache::lonmeta::selectbox('viewselect',
1.243 albertel 1159: $env{'form.viewselect'},
1.200 www 1160: \&viewoptiontext,
1161: sort(keys(%Views)));
1.208 matthew 1162: $scrout.= ' ';
1.214 matthew 1163: my $countselect = &Apache::lonmeta::selectbox('show',
1.243 albertel 1164: $env{'form.show'},
1.214 matthew 1165: undef,
1166: (10,20,50,100,1000,10000));
1167: $scrout .= (' 'x2).&mt('[_1] Records per Page',$countselect).
1168: '</nobr>'.$/;
1.200 www 1169: return $scrout;
1.201 www 1170: }
1171:
1172: ######################################################################
1.204 matthew 1173: ######################################################################
1.201 www 1174:
1175: =pod
1176:
1.204 matthew 1177: =item searchhelp()
1.201 www 1178:
1179: Inputs: none
1180:
1181: Outputs: return little blurb on how to enter searches
1182:
1183: =cut
1184:
1185: ######################################################################
1186: ######################################################################
1187: sub searchhelp {
1.228 matthew 1188: return &mt('Enter words and quoted phrases');
1.200 www 1189: }
1.8 harris41 1190:
1.121 matthew 1191: ######################################################################
1192: ######################################################################
1193:
1194: =pod
1195:
1.204 matthew 1196: =item &get_persistent_form_data()
1.145 matthew 1197:
1.146 matthew 1198: Inputs: filename of database
1199:
1200: Outputs: returns undef on database errors.
1201:
1202: This function is the reverse of &make_persistent() for form data.
1.145 matthew 1203: Retrieve persistent data from %persistent_db. Retrieved items will have their
1.243 albertel 1204: values unescaped. If a form value already exists in $env, it will not be
1.146 matthew 1205: overwritten. Form values that are array references may have values appended
1206: to them.
1.145 matthew 1207:
1208: =cut
1209:
1210: ######################################################################
1211: ######################################################################
1.146 matthew 1212: sub get_persistent_form_data {
1213: my $filename = shift;
1.147 matthew 1214: return 0 if (! -e $filename);
1.146 matthew 1215: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 1216: &GDBM_READER(),0640));
1.146 matthew 1217: #
1218: # These make sure we do not get array references printed out as 'values'.
1.161 matthew 1219: my %arrays_allowed = ('form.domains'=>1);
1.146 matthew 1220: #
1221: # Loop through the keys, looking for 'form.'
1222: foreach my $name (keys(%persistent_db)) {
1223: next if ($name !~ /^form./);
1.182 matthew 1224: # Kludgification begins!
1225: if ($name eq 'form.domains' &&
1.243 albertel 1226: $env{'form.searchmode'} eq 'basic' &&
1227: $env{'form.phase'} ne 'disp_basic') {
1.182 matthew 1228: next;
1229: }
1230: # End kludge (hopefully)
1.243 albertel 1231: next if (exists($env{$name}));
1.146 matthew 1232: my @values = map {
1.265 www 1233: &unescape($_);
1.146 matthew 1234: } split(',',$persistent_db{$name});
1235: next if (@values <1);
1.152 matthew 1236: if ($arrays_allowed{$name}) {
1.243 albertel 1237: $env{$name} = [@values];
1.146 matthew 1238: } else {
1.243 albertel 1239: $env{$name} = $values[0] if ($values[0]);
1.146 matthew 1240: }
1241: }
1242: untie (%persistent_db);
1243: return 1;
1244: }
1.181 matthew 1245:
1.146 matthew 1246: ######################################################################
1247: ######################################################################
1248:
1249: =pod
1250:
1.204 matthew 1251: =item &get_persistent_data()
1.146 matthew 1252:
1253: Inputs: filename of database, ref to array of values to recover.
1254:
1255: Outputs: array of values. Returns undef on error.
1256:
1257: This function is the reverse of &make_persistent();
1258: Retrieve persistent data from %persistent_db. Retrieved items will have their
1259: values unescaped. If the item contains commas (before unescaping), the
1260: returned value will be an array pointer.
1261:
1262: =cut
1263:
1264: ######################################################################
1265: ######################################################################
1266: sub get_persistent_data {
1267: my $filename = shift;
1268: my @Vars = @{shift()};
1269: my @Values; # Return array
1270: return undef if (! -e $filename);
1271: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 1272: &GDBM_READER(),0640));
1.146 matthew 1273: foreach my $name (@Vars) {
1274: if (! exists($persistent_db{$name})) {
1275: push @Values, undef;
1276: next;
1277: }
1278: my @values = map {
1.265 www 1279: &unescape($_);
1.146 matthew 1280: } split(',',$persistent_db{$name});
1.152 matthew 1281: if (@values <= 1) {
1.146 matthew 1282: push @Values,$values[0];
1.145 matthew 1283: } else {
1.146 matthew 1284: push @Values,\@values;
1.145 matthew 1285: }
1286: }
1.146 matthew 1287: untie (%persistent_db);
1288: return @Values;
1.145 matthew 1289: }
1290:
1291: ######################################################################
1292: ######################################################################
1293:
1294: =pod
1295:
1.121 matthew 1296: =item &make_persistent()
1297:
1.146 matthew 1298: Inputs: Hash of values to save, filename of persistent database.
1299:
1300: Store variables away to the %persistent_db.
1.145 matthew 1301: Values will be escaped. Values that are array pointers will have their
1.205 www 1302: elements escaped and concatenated in a comma separated string.
1.122 matthew 1303:
1.121 matthew 1304: =cut
1305:
1306: ######################################################################
1307: ######################################################################
1.98 harris41 1308: sub make_persistent {
1.133 matthew 1309: my %save = %{shift()};
1.146 matthew 1310: my $filename = shift;
1311: return undef if (! tie(%persistent_db,'GDBM_File',
1.148 matthew 1312: $filename,&GDBM_WRCREAT(),0640));
1.146 matthew 1313: foreach my $name (keys(%save)) {
1.145 matthew 1314: my @values = (ref($save{$name}) ? @{$save{$name}} : ($save{$name}));
1315: # We handle array references, but not recursively.
1.265 www 1316: my $store = join(',', map { &escape($_); } @values );
1.145 matthew 1317: $persistent_db{$name} = $store;
1.109 harris41 1318: }
1.146 matthew 1319: untie(%persistent_db);
1320: return 1;
1321: }
1322:
1323: ######################################################################
1324: ######################################################################
1325:
1326: =pod
1327:
1328: =item &make_form_data_persistent()
1329:
1330: Inputs: filename of persistent database.
1331:
1332: Store most form variables away to the %persistent_db.
1333: Values will be escaped. Values that are array pointers will have their
1.205 www 1334: elements escaped and concatenated in a comma separated string.
1.146 matthew 1335:
1336: =cut
1337:
1338: ######################################################################
1339: ######################################################################
1340: sub make_form_data_persistent {
1341: my $r = shift;
1342: my $filename = shift;
1343: my %save;
1.243 albertel 1344: foreach (keys(%env)) {
1.150 matthew 1345: next if (!/^form/ || /submit/);
1.243 albertel 1346: $save{$_} = $env{$_};
1.146 matthew 1347: }
1.152 matthew 1348: return &make_persistent(\%save,$filename);
1.98 harris41 1349: }
1350:
1.122 matthew 1351: ######################################################################
1352: ######################################################################
1353:
1354: =pod
1355:
1.134 matthew 1356: =item &parse_advanced_search()
1357:
1358: Parse advanced search form and return the following:
1359:
1360: =over 4
1361:
1362: =item $query Scalar containing an SQL query.
1.126 matthew 1363:
1.134 matthew 1364: =item $customquery Scalar containing a custom query.
1365:
1366: =item $customshow Scalar containing commands to show custom metadata.
1367:
1368: =item $libraries_to_query Reference to array of domains to search.
1369:
1370: =back
1.122 matthew 1371:
1372: =cut
1373:
1374: ######################################################################
1375: ######################################################################
1.134 matthew 1376: sub parse_advanced_search {
1.196 matthew 1377: my ($r,$closebutton,$hidden_fields)=@_;
1.216 matthew 1378: my @BasicFields = ('title','author','subject','keywords','url','version',
1.227 matthew 1379: 'notes','abstract','extension','owner','authorspace',
1.216 matthew 1380: # 'custommetadata','customshow',
1381: 'modifyinguser','standards','mime');
1.222 matthew 1382: my @StatsFields = &statfields();
1383: my @EvalFields = &evalfields();
1.32 harris41 1384: my $fillflag=0;
1.230 matthew 1385: my $pretty_search_string = "";
1.64 harris41 1386: # Clean up fields for safety
1.216 matthew 1387: for my $field (@BasicFields,
1388: 'creationdatestart_month','creationdatestart_day',
1.64 harris41 1389: 'creationdatestart_year','creationdateend_month',
1390: 'creationdateend_day','creationdateend_year',
1391: 'lastrevisiondatestart_month','lastrevisiondatestart_day',
1392: 'lastrevisiondatestart_year','lastrevisiondateend_month',
1.216 matthew 1393: 'lastrevisiondateend_day','lastrevisiondateend_year') {
1.243 albertel 1394: $env{'form.'.$field}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.64 harris41 1395: }
1.117 matthew 1396: foreach ('mode','form','element') {
1397: # is this required? Hmmm.
1.243 albertel 1398: next if (! exists($env{'form.'.$_}));
1.265 www 1399: $env{'form.'.$_}=&unescape($env{'form.'.$_});
1.243 albertel 1400: $env{'form.'.$_}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1401: }
1.131 matthew 1402: # Preprocess the category form element.
1.243 albertel 1403: $env{'form.category'} = 'any' if (! defined($env{'form.category'}) ||
1404: ref($env{'form.category'}));
1.161 matthew 1405: #
1.90 harris41 1406: # Check to see if enough information was filled in
1.222 matthew 1407: foreach my $field (@BasicFields) {
1.243 albertel 1408: if (&filled($env{'form.'.$field})) {
1.32 harris41 1409: $fillflag++;
1410: }
1411: }
1.222 matthew 1412: foreach my $field (@StatsFields,@EvalFields) {
1.243 albertel 1413: if (&filled($env{'form.'.$field.'_max'})) {
1.222 matthew 1414: $fillflag++;
1415: }
1.243 albertel 1416: if (&filled($env{'form.'.$field.'_min'})) {
1.222 matthew 1417: $fillflag++;
1418: }
1419: }
1420:
1.216 matthew 1421: for my $field ('lowestgradelevel','highestgradelevel') {
1.243 albertel 1422: if ( $env{'form.'.$field} =~ /^\d+$/ &&
1423: $env{'form.'.$field} > 0) {
1.216 matthew 1424: $fillflag++;
1425: }
1426: }
1.279 ! raeburn 1427: if ($env{'form.area'} eq 'portfolio') {
! 1428: # Added metadata fields
! 1429: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
! 1430: my $field = $env{'form.addedfield_'.$i};
! 1431: $field =~ s/^\s*(\S*)\s*$/$1/;
! 1432: $field =~ s/\W/_/g;
! 1433: if ($field ne '') {
! 1434: $fillflag++;
! 1435: }
! 1436: }
! 1437: }
1.212 matthew 1438: if (! $fillflag) {
1.204 matthew 1439: &output_blank_field_error($r,$closebutton,
1440: 'phase=disp_adv',$hidden_fields);
1.134 matthew 1441: return ;
1.32 harris41 1442: }
1.90 harris41 1443: # Turn the form input into a SQL-based query
1.39 harris41 1444: my $query='';
1.45 harris41 1445: my @queries;
1.143 matthew 1446: my $font = '<font color="#800000" face="helvetica">';
1.90 harris41 1447: # Evaluate logical expression AND/OR/NOT phrase fields.
1.216 matthew 1448: foreach my $field (@BasicFields) {
1.243 albertel 1449: next if (!defined($env{'form.'.$field}) || $env{'form.'.$field} eq '');
1.228 matthew 1450: my ($error,$SQLQuery) =
1.243 albertel 1451: &process_phrase_input($env{'form.'.$field},
1452: $env{'form.'.$field.'_related'},$field);
1.228 matthew 1453: if (defined($error)) {
1454: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_adv',
1455: $hidden_fields,$field);
1456: return;
1457: } else {
1458: $pretty_search_string .=
1.243 albertel 1459: $font.$field.'</font>: '.$env{'form.'.$field};
1460: if ($env{'form.'.$field.'_related'}) {
1.228 matthew 1461: my @Words =
1462: &Apache::loncommon::get_related_words
1.243 albertel 1463: ($env{'form.'.$field});
1.228 matthew 1464: if (@Words) {
1465: $pretty_search_string.= ' with related words: '.
1466: join(', ',@Words[0..4]);
1.143 matthew 1467: } else {
1.228 matthew 1468: $pretty_search_string.= ' with related words.';
1.143 matthew 1469: }
1.142 matthew 1470: }
1.228 matthew 1471: $pretty_search_string .= '<br />';
1472: push (@queries,$SQLQuery);
1.131 matthew 1473: }
1.44 harris41 1474: }
1.161 matthew 1475: #
1476: # Make the 'mime' from 'form.category' and 'form.extension'
1477: #
1478: my $searchphrase;
1.243 albertel 1479: if (exists($env{'form.category'}) &&
1480: $env{'form.category'} !~ /^\s*$/ &&
1481: $env{'form.category'} ne 'any') {
1.161 matthew 1482: my @extensions = &Apache::loncommon::filecategorytypes
1.243 albertel 1483: ($env{'form.category'});
1.161 matthew 1484: if (scalar(@extensions) > 0) {
1485: $searchphrase = join(' OR ',@extensions);
1486: }
1487: }
1488: if (defined($searchphrase)) {
1.228 matthew 1489: my ($error,$SQLsearch) = &process_phrase_input($searchphrase,0,'mime');
1490: push @queries,$SQLsearch;
1.161 matthew 1491: $pretty_search_string .=$font.'mime</font> contains <b>'.
1492: $searchphrase.'</b><br />';
1.135 matthew 1493: }
1.204 matthew 1494: #
1.90 harris41 1495: # Evaluate option lists
1.243 albertel 1496: if ($env{'form.lowestgradelevel'} &&
1497: $env{'form.lowestgradelevel'} ne '0' &&
1498: $env{'form.lowestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1499: push(@queries,
1.243 albertel 1500: '(lowestgradelevel>='.$env{'form.lowestgradelevel'}.')');
1.216 matthew 1501: $pretty_search_string.="lowestgradelevel>=".
1.243 albertel 1502: $env{'form.lowestgradelevel'}."<br />\n";
1.216 matthew 1503: }
1.243 albertel 1504: if ($env{'form.highestgradelevel'} &&
1505: $env{'form.highestgradelevel'} ne '0' &&
1506: $env{'form.highestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1507: push(@queries,
1.243 albertel 1508: '(highestgradelevel<='.$env{'form.highestgradelevel'}.')');
1.216 matthew 1509: $pretty_search_string.="highestgradelevel<=".
1.243 albertel 1510: $env{'form.highestgradelevel'}."<br />\n";
1.216 matthew 1511: }
1.243 albertel 1512: if ($env{'form.language'} and $env{'form.language'} ne 'any') {
1513: push @queries,"(language like \"$env{'form.language'}\")";
1.143 matthew 1514: $pretty_search_string.=$font."language</font>= ".
1.243 albertel 1515: &Apache::loncommon::languagedescription($env{'form.language'}).
1.143 matthew 1516: "<br />\n";
1.58 harris41 1517: }
1.243 albertel 1518: if ($env{'form.copyright'} and $env{'form.copyright'} ne 'any') {
1519: push @queries,"(copyright like \"$env{'form.copyright'}\")";
1.143 matthew 1520: $pretty_search_string.=$font."copyright</font> = ".
1.243 albertel 1521: &Apache::loncommon::copyrightdescription($env{'form.copyright'}).
1.230 matthew 1522: "<br />\n";
1.58 harris41 1523: }
1.276 raeburn 1524: if ($env{'form.area'} eq 'portfolio') {
1525: #
1526: # Added metadata fields
1527: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1.279 ! raeburn 1528: my $field = $env{'form.addedfield_'.$i};
! 1529: $field =~ s/^\s*(\S*)\s*$/$1/;
! 1530: $field =~ s/\W/_/g;
! 1531: $field =~ tr/A-Z/a-z/;
! 1532: if ($field ne '') {
! 1533: my $value = $env{'form.addedvalues_'.$i};
! 1534: if ($value ne '') {
! 1535: $value =~ s/'/''/g;
! 1536: my ($error,$query) =
! 1537: &process_phrase_input($value,0,'pf.value');
! 1538: if (!defined($error)) {
! 1539: push(@queries,"pf.field = '$field' AND $query");
! 1540: $pretty_search_string .=
! 1541: $font.$field.'</font>: '.
! 1542: $env{'form.addedvalues_'.$i}.'<br />';
! 1543: }
! 1544: } else {
! 1545: push(@queries,"pf.field = '$field' AND pf.value IS NULL");
! 1546: }
1.276 raeburn 1547: }
1548: }
1549: } else {
1550: #
1551: # Statistics
1552: foreach my $field (@StatsFields,@EvalFields) {
1553: my ($min,$max);
1554: if (exists($env{'form.'.$field.'_min'}) &&
1555: $env{'form.'.$field.'_min'} ne '') {
1556: $min = $env{'form.'.$field.'_min'};
1557: }
1558: if (exists($env{'form.'.$field.'_max'}) &&
1559: $env{'form.'.$field.'_max'} ne '') {
1560: $max = $env{'form.'.$field.'_max'};
1561: }
1562: next if (! defined($max) && ! defined($min));
1563: if (defined($min) && defined($max)) {
1564: ($min,$max) = sort {$a <=>$b} ($min,$max);
1565: }
1566: if (defined($min) && $min =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1567: push(@queries,'('.$field.'>'.$min.')');
1568: $pretty_search_string.=$font.$field.'</font>>'.$min.'<br />';
1569: }
1570: if (defined($max) && $max =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1571: push(@queries,'('.$field.'<'.$max.')');
1572: $pretty_search_string.=$font.$field.'</font><'.$max.'<br />';
1573: }
1.217 matthew 1574: }
1575: }
1576: #
1.90 harris41 1577: # Evaluate date windows
1.216 matthew 1578: my $cafter =
1579: &Apache::lonhtmlcommon::get_date_from_form('creationdate1');
1580: my $cbefore =
1581: &Apache::lonhtmlcommon::get_date_from_form('creationdate2');
1582: if ($cafter > $cbefore) {
1583: my $tmp = $cafter;
1584: $cafter = $cbefore;
1585: $cbefore = $tmp;
1586: }
1587: my $mafter =
1588: &Apache::lonhtmlcommon::get_date_from_form('revisiondate1');
1589: my $mbefore =
1590: &Apache::lonhtmlcommon::get_date_from_form('revisiondate2');
1591: if ($mafter > $mbefore) {
1592: my $tmp = $mafter;
1593: $mafter = $mbefore;
1594: $mbefore = $tmp;
1595: }
1596: my ($datequery,$error,$prettydate)=&build_date_queries($cafter,$cbefore,
1597: $mafter,$mbefore);
1598: if (defined($error)) {
1599: &output_date_error($r,$error,$closebutton,$hidden_fields);
1600: } elsif (defined($datequery)) {
1.143 matthew 1601: # Here is where you would set up pretty_search_string to output
1602: # date query information.
1.216 matthew 1603: $pretty_search_string .= '<br />'.$prettydate.'<br />';
1.60 harris41 1604: push @queries,$datequery;
1605: }
1.204 matthew 1606: #
1.90 harris41 1607: # Process form information for custom metadata querying
1.134 matthew 1608: my $customquery=undef;
1.204 matthew 1609: ##
1610: ## The custom metadata search was removed q long time ago mostly
1611: ## because I was unable to figureout exactly how it worked and could
1612: ## not imagine people actually using it. MH
1613: ##
1.243 albertel 1614: # if ($env{'form.custommetadata'}) {
1.204 matthew 1615: # $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".
1.243 albertel 1616: # $env{'form.custommetadata'}."</b><br />\n";
1.204 matthew 1617: # $customquery=&build_custommetadata_query('custommetadata',
1.243 albertel 1618: # $env{'form.custommetadata'});
1.204 matthew 1619: # }
1.134 matthew 1620: my $customshow=undef;
1.243 albertel 1621: # if ($env{'form.customshow'}) {
1.204 matthew 1622: # $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".
1.243 albertel 1623: # $env{'form.customshow'}."</b><br />\n";
1624: # $customshow=$env{'form.customshow'};
1.204 matthew 1625: # $customshow=~s/[^\w\s]//g;
1626: # my @fields=split(/\s+/,$customshow);
1627: # $customshow=join(" ",@fields);
1628: # }
1629: ##
1.132 matthew 1630: ## Deal with restrictions to given domains
1631: ##
1.254 www 1632: my ($libraries_to_query,$pretty_domains_string) = &parse_domain_restrictions();
1633: if ($pretty_domains_string) {
1.251 www 1634: $pretty_search_string .= $pretty_domains_string."<br />\n";
1635: }
1.180 matthew 1636: #
1637: if (@queries) {
1.277 raeburn 1638: if ($env{'form.area'} eq 'portfolio') {
1.279 ! raeburn 1639: $query ="SELECT pm.*,pa.keynum,pa.scope FROM portfolio_metadata pm, portfolio_access pa, portfolio_addedfields pf WHERE (pm.url = pa.url AND pf.url = pm.url AND (pa.start < NOW() AND (pa.end IS NULL OR pa.end > NOW())) AND (".join(') AND (',@queries).'))';
1.277 raeburn 1640: } else {
1641: $query="SELECT * FROM metadata WHERE (".join(") AND (",@queries).')';
1642: }
1.180 matthew 1643: } elsif ($customquery) {
1644: $query = '';
1645: }
1.241 matthew 1646: #&Apache::lonnet::logthis('advanced query = '.$/.$query);
1.180 matthew 1647: return ($query,$customquery,$customshow,$libraries_to_query,
1648: $pretty_search_string);
1649: }
1650:
1651: sub parse_domain_restrictions {
1.132 matthew 1652: my $libraries_to_query = undef;
1.243 albertel 1653: # $env{'form.domains'} can be either a scalar or an array reference.
1.132 matthew 1654: # We need an array.
1.243 albertel 1655: if (! exists($env{'form.domains'}) || $env{'form.domains'} eq '') {
1.240 matthew 1656: return (undef,'',undef);
1.180 matthew 1657: }
1.245 albertel 1658: my @allowed_domains = &Apache::loncommon::get_env_multiple('form.domains');
1.204 matthew 1659: #
1.132 matthew 1660: my %domain_hash = ();
1.143 matthew 1661: my $pretty_domains_string;
1.132 matthew 1662: foreach (@allowed_domains) {
1663: $domain_hash{$_}++;
1664: }
1.143 matthew 1665: if ($domain_hash{'any'}) {
1.273 www 1666: $pretty_domains_string = &mt("in all LON-CAPA domains.");
1.143 matthew 1667: } else {
1668: if (@allowed_domains > 1) {
1.273 www 1669: $pretty_domains_string = &mt("in LON-CAPA domains:");
1.143 matthew 1670: } else {
1.273 www 1671: $pretty_domains_string = &mt("in LON-CAPA domain ");
1.143 matthew 1672: }
1673: foreach (sort @allowed_domains) {
1.152 matthew 1674: $pretty_domains_string .= "<b>".$_."</b> ";
1.132 matthew 1675: }
1.143 matthew 1676: foreach (keys(%Apache::lonnet::libserv)) {
1677: if (exists($domain_hash{$Apache::lonnet::hostdom{$_}})) {
1678: push @$libraries_to_query,$_;
1679: }
1.132 matthew 1680: }
1681: }
1.239 matthew 1682: return ($libraries_to_query,
1.254 www 1683: $pretty_domains_string);
1.18 harris41 1684: }
1685:
1.122 matthew 1686: ######################################################################
1687: ######################################################################
1688:
1689: =pod
1690:
1.134 matthew 1691: =item &parse_basic_search()
1.122 matthew 1692:
1.134 matthew 1693: Parse the basic search form and return a scalar containing an sql query.
1.126 matthew 1694:
1.122 matthew 1695: =cut
1696:
1697: ######################################################################
1698: ######################################################################
1.134 matthew 1699: sub parse_basic_search {
1.145 matthew 1700: my ($r,$closebutton)=@_;
1.204 matthew 1701: #
1.64 harris41 1702: # Clean up fields for safety
1703: for my $field ('basicexp') {
1.243 albertel 1704: $env{"form.$field"}=~s/[^\w\s\'\"\!\(\)\-]//g;
1.64 harris41 1705: }
1.117 matthew 1706: foreach ('mode','form','element') {
1707: # is this required? Hmmm.
1.243 albertel 1708: next unless (exists($env{"form.$_"}));
1.265 www 1709: $env{"form.$_"}=&unescape($env{"form.$_"});
1.243 albertel 1710: $env{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1711: }
1.254 www 1712: my ($libraries_to_query,$pretty_domains_string) = &parse_domain_restrictions();
1.204 matthew 1713: #
1714: # Check to see if enough of a query is filled in
1.243 albertel 1715: my $search_string = $env{'form.basicexp'};
1.220 matthew 1716: if (! &filled($search_string)) {
1.151 matthew 1717: &output_blank_field_error($r,$closebutton,'phase=disp_basic');
1.24 harris41 1718: return OK;
1719: }
1.228 matthew 1720: my $pretty_search_string=$search_string;
1.224 matthew 1721: my @Queries;
1.276 raeburn 1722: my @fields = ('title','author','subject','notes','abstract','keywords');
1723: my $searchfield;
1724: if ($env{'form.area'} eq 'portfolio') {
1725: $searchfield = 'concat_ws(" ",pm.'.join(',pm.',@fields).')';
1726: } else {
1727: $searchfield = 'concat_ws(" ",'.join(',',@fields).')';
1728: }
1.228 matthew 1729: my ($error,$SQLQuery) = &process_phrase_input($search_string,
1.243 albertel 1730: $env{'form.related'},
1.228 matthew 1731: $searchfield);
1732: if ($error) {
1733: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic',
1734: '','basicexp');
1735: return;
1.141 matthew 1736: }
1.228 matthew 1737: push(@Queries,$SQLQuery);
1738: #foreach my $q (@Queries) {
1739: # &Apache::lonnet::logthis(' '.$q);
1740: #}
1.276 raeburn 1741: my $final_query;
1742: if ($env{'form.area'} eq 'portfolio') {
1743: $final_query = 'SELECT pm.*,pa.keynum,pa.scope FROM portfolio_metadata pm, portfolio_access pa WHERE (pm.url = pa.url AND (pa.start < NOW() AND (pa.end IS NULL OR pa.end > NOW())) AND '.join(" AND ",@Queries).')';
1744: } else {
1745: $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries);
1746: }
1.204 matthew 1747: #
1.273 www 1748: if ($env{'form.related'}) {
1749: $pretty_search_string.=' '.&mt('(including related words)');
1750: }
1.180 matthew 1751: if (defined($pretty_domains_string) && $pretty_domains_string ne '') {
1752: $pretty_search_string .= ' '.$pretty_domains_string;
1753: }
1.143 matthew 1754: $pretty_search_string .= "<br />\n";
1.225 matthew 1755: $pretty_search_string =~ s:^<br /> and ::;
1.276 raeburn 1756: &Apache::lonnet::logthis('simple search final query = '.$/.$final_query);
1.183 matthew 1757: return ($final_query,$pretty_search_string,
1.180 matthew 1758: $libraries_to_query);
1.22 harris41 1759: }
1760:
1.228 matthew 1761:
1762: ###############################################################
1763: ###############################################################
1764:
1765: my @Phrases;
1766:
1767: sub concat {
1768: my ($item) = @_;
1769: my $results = '';
1770: foreach (@$item) {
1771: if (ref($_) eq 'ARRAY') {
1772: $results .= join(' ',@$_);
1773: }
1774: }
1775: return $results;
1776: }
1777:
1.224 matthew 1778: sub process_phrase_input {
1.228 matthew 1779: my ($phrase,$related,$field)=@_;
1780: #&Apache::lonnet::logthis('phrase = :'.$phrase.':');
1781: my $grammar = <<'ENDGRAMMAR';
1782: searchphrase:
1783: expression /^\Z/ {
1784: # &Apache::lonsearchcat::print_item(\@item,0);
1785: [@item];
1786: }
1787: expression:
1788: phrase(s) {
1789: [@item];
1790: }
1791: phrase:
1792: orword {
1793: [@item];
1794: }
1795: | andword {
1796: [@item];
1797: }
1798: | minusword {
1799: unshift(@::Phrases,$item[1]->[0]);
1800: unshift(@::Phrases,$item[1]->[1]);
1801: [@item];
1802: }
1803: | word {
1804: unshift(@::Phrases,$item[1]);
1805: [@item];
1806: }
1807: #
1808: orword:
1809: word 'OR' phrase {
1810: unshift(@::Phrases,'OR');
1811: unshift(@::Phrases,$item[1]);
1812: [@item];
1813: }
1814: | word 'or' phrase {
1815: unshift(@::Phrases,'OR');
1816: unshift(@::Phrases,$item[1]);
1817: [@item];
1818: }
1819: | minusword 'OR' phrase {
1820: unshift(@::Phrases,'OR');
1821: unshift(@::Phrases,$item[1]->[0]);
1822: unshift(@::Phrases,$item[1]->[1]);
1823: [@item];
1824: }
1825: | minusword 'or' phrase {
1826: unshift(@::Phrases,'OR');
1827: unshift(@::Phrases,$item[1]->[0]);
1828: unshift(@::Phrases,$item[1]->[1]);
1829: [@item];
1830: }
1831: andword:
1832: word phrase {
1833: unshift(@::Phrases,'AND');
1834: unshift(@::Phrases,$item[1]);
1835: [@item];
1836: }
1837: | minusword phrase {
1838: unshift(@::Phrases,'AND');
1839: unshift(@::Phrases,$item[1]->[0]);
1840: unshift(@::Phrases,$item[1]->[1]);
1841: [@item];
1842: }
1843: #
1844: minusword:
1845: '-' word {
1846: [$item[2],'NOT'];
1847: }
1848: word:
1849: "'" term(s) "'" {
1850: &Apache::lonsearchcat::concat(\@item);
1851: }
1852: | '"' term(s) '"' {
1853: &Apache::lonsearchcat::concat(\@item);
1854: }
1855: | term {
1856: $item[1];
1857: }
1858: term:
1859: /[\w\Q:!@#$%^&*()+_=|{}<>,.;\\\/?\E]+/ {
1860: $item[1];
1861: }
1862: ENDGRAMMAR
1863: #
1864: # The end result of parsing the phrase with the grammar is an array
1865: # @::Phrases.
1866: # $phrase = "gene splicing" or cat -> "gene splicing","OR","cat"
1867: # $phrase = "genetic engineering" -dna ->
1868: # "genetic engineering","AND","NOT","dna"
1869: # $phrase = cat or dog -poodle -> "cat","OR","dog","AND","NOT","poodle"
1870: undef(@::Phrases);
1871: my $p = new Parse::RecDescent($grammar);
1872: if (! defined($p->searchphrase($phrase))) {
1873: &Apache::lonnet::logthis('lonsearchcat:unable to process:'.$phrase);
1874: return 'Unable to process phrase '.$phrase;
1875: }
1876: #
1877: # Go through the phrases and make sense of them.
1878: # Apply modifiers NOT OR and AND to the phrases.
1879: my @NewPhrases;
1880: while(@::Phrases) {
1881: my $phrase = shift(@::Phrases);
1882: # &Apache::lonnet::logthis('phrase = '.$phrase);
1883: my $phrasedata;
1884: if ($phrase =~ /^(NOT|OR|AND)$/) {
1885: if ($phrase eq 'OR') {
1886: $phrasedata->{'or'}++;
1887: if (! @::Phrases) { $phrasedata = undef; last; }
1888: $phrase = shift(@::Phrases);
1889: } elsif ($phrase eq 'AND') {
1890: $phrasedata->{'and'}++;
1891: if (! @::Phrases) { $phrasedata = undef; last; }
1892: $phrase = shift(@::Phrases);
1.224 matthew 1893: }
1.228 matthew 1894: if ($phrase eq 'NOT') {
1895: $phrasedata->{'negate'}++;
1896: if (! @::Phrases) { $phrasedata = undef; last; }
1897: $phrase = shift(@::Phrases);
1.224 matthew 1898: }
1.228 matthew 1899: }
1900: $phrasedata->{'phrase'} = $phrase;
1901: if ($related) {
1902: my @NewWords;
1903: (undef,@NewWords) = &related_version($phrasedata->{'phrase'});
1904: $phrasedata->{'related_words'} = \@NewWords;
1905: }
1906: push(@NewPhrases,$phrasedata);
1907: }
1908: #
1909: # Actually build the sql query from the phrases
1910: my $SQLQuery;
1911: foreach my $phrase (@NewPhrases) {
1912: my $query;
1913: if ($phrase->{'negate'}) {
1914: $query .= $field.' NOT LIKE "%'.$phrase->{'phrase'}.'%"';
1.224 matthew 1915: } else {
1.228 matthew 1916: $query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"';
1917: }
1918: foreach my $related (@{$phrase->{'related_words'}}) {
1919: if ($phrase->{'negate'}) {
1920: $query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"';
1921: } else {
1922: $query .= ' OR '.$field.' LIKE "%'.$related.'%"';
1923: }
1924: }
1925: if ($SQLQuery) {
1926: if ($phrase->{'or'}) {
1927: $SQLQuery .= ' OR ('.$query.')';
1928: } else {
1929: $SQLQuery .= ' AND ('.$query.')';
1.224 matthew 1930: }
1.228 matthew 1931: } else {
1932: $SQLQuery = '('.$query.')';
1.224 matthew 1933: }
1934: }
1935: #
1.228 matthew 1936: # &Apache::lonnet::logthis("SQLQuery = $SQLQuery");
1.224 matthew 1937: #
1.228 matthew 1938: return undef,$SQLQuery;
1.224 matthew 1939: }
1940:
1.122 matthew 1941: ######################################################################
1942: ######################################################################
1943:
1944: =pod
1945:
1.204 matthew 1946: =item &related_version()
1.142 matthew 1947:
1948: Modifies an input string to include related words. Words in the string
1949: are replaced with parenthesized lists of 'OR'd words. For example
1950: "torque" is replaced with "(torque OR word1 OR word2 OR ...)".
1951:
1952: Note: Using this twice on a string is probably silly.
1953:
1954: =cut
1955:
1956: ######################################################################
1957: ######################################################################
1958: sub related_version {
1.224 matthew 1959: my ($word) = @_;
1960: return (undef) if (lc($word) =~ /\b(or|and|not)\b/);
1961: my @Words = &Apache::loncommon::get_related_words($word);
1962: # Only use 4 related words
1963: @Words = ($#Words>4? @Words[0..4] : @Words);
1964: my $result = join " OR ", ($word,@Words);
1965: return $result,sort(@Words);
1.142 matthew 1966: }
1967:
1.98 harris41 1968:
1.122 matthew 1969: ######################################################################
1970: ######################################################################
1971:
1972: =pod
1973:
1974: =item &build_custommetadata_query()
1975:
1.126 matthew 1976: Constructs a custom metadata query using a rather heinous regular
1977: expression.
1978:
1.122 matthew 1979: =cut
1980:
1981: ######################################################################
1982: ######################################################################
1.98 harris41 1983: sub build_custommetadata_query {
1984: my ($field_name,$logic_statement)=@_;
1985: my $q=new Text::Query('abc',
1986: -parse => 'Text::Query::ParseAdvanced',
1987: -build => 'Text::Query::BuildAdvancedString');
1988: $q->prepare($logic_statement);
1989: my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'};
1990: # quick fix to change literal into xml tag-matching
1991: # will eventually have to write a separate builder module
1.122 matthew 1992: # wordone=wordtwo becomes\<wordone\>[^\<] *wordtwo[^\<]*\<\/wordone\>
1993: $matchexp =~ s/(\w+)\\=([\w\\\+]+)?# wordone=wordtwo is changed to
1994: /\\<$1\\>?# \<wordone\>
1995: \[\^\\<\]?# [^\<]
1996: \*$2\[\^\\<\]?# *wordtwo[^\<]
1997: \*\\<\\\/$1\\>?# *\<\/wordone\>
1998: /g;
1.98 harris41 1999: return $matchexp;
2000: }
2001:
1.22 harris41 2002:
1.122 matthew 2003: ######################################################################
2004: ######################################################################
2005:
2006: =pod
2007:
2008: =item &build_date_queries()
2009:
1.126 matthew 2010: Builds a SQL logic query to check time/date entries.
2011: Also reports errors (check for /^Incorrect/).
2012:
1.122 matthew 2013: =cut
2014:
2015: ######################################################################
2016: ######################################################################
1.98 harris41 2017: sub build_date_queries {
1.216 matthew 2018: my ($cafter,$cbefore,$mafter,$mbefore) = @_;
2019: my ($result,$error,$pretty_string);
2020: #
2021: # Verify the input
2022: if (! defined($cafter) && ! defined($cbefore) &&
2023: ! defined($mafter) && ! defined($mbefore)) {
2024: # This is an okay situation, so return undef for the error
2025: return (undef,undef,undef);
2026: }
2027: if ((defined($cafter) && ! defined($cbefore)) ||
2028: (defined($cbefore) && ! defined($cafter))) {
2029: # This is bad, so let them know
2030: $error = &mt('Incorrect entry for the creation date. '.
2031: 'You must specify both the beginning and ending dates.');
2032: }
2033: if (! defined($error) &&
2034: ((defined($mafter) && ! defined($mbefore)) ||
2035: (defined($mbefore) && ! defined($mafter)))) {
2036: # This is also bad, so let them know
2037: $error = &mt('Incorrect entry for the last revision date. '.
2038: 'You must specify both the beginning and ending dates.');
1.98 harris41 2039: }
1.216 matthew 2040: if (! defined($error)) {
2041: #
2042: # Build the queries
2043: my @queries;
2044: if (defined($cbefore) && defined($cafter)) {
2045: my (undef,undef,undef,$caday,$camon,$cayear) = localtime($cafter);
2046: my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore);
2047: # Correct for year being relative to 1900
2048: $cayear+=1900; $cbyear+=1900;
2049: my $cquery=
2050: '(creationdate BETWEEN '.
2051: "'".$cayear.'-'.$camon.'-'.$caday."'".
2052: ' AND '.
2053: "'".$cbyear.'-'.$cbmon.'-'.$cbday." 23:59:59')";
2054: $pretty_string .= '<br />' if (defined($pretty_string));
2055: $pretty_string .=
2056: &mt('created between [_1] and [_2]',
2057: &Apache::lonlocal::locallocaltime($cafter),
2058: &Apache::lonlocal::locallocaltime($cbefore+24*60*60-1));
2059: push(@queries,$cquery);
2060: $pretty_string =~ s/ 00:00:00//g;
2061: }
2062: if (defined($mbefore) && defined($mafter)) {
2063: my (undef,undef,undef,$maday,$mamon,$mayear) = localtime($mafter);
2064: my (undef,undef,undef,$mbday,$mbmon,$mbyear) = localtime($mbefore);
2065: # Correct for year being relative to 1900
2066: $mayear+=1900; $mbyear+=1900;
2067: my $mquery=
2068: '(lastrevisiondate BETWEEN '.
2069: "'".$mayear.'-'.$mamon.'-'.$maday."'".
2070: ' AND '.
2071: "'".$mbyear.'-'.$mbmon.'-'.$mbday." 23:59:59')";
2072: push(@queries,$mquery);
2073: $pretty_string .= '<br />' if (defined($pretty_string));
2074: $pretty_string .=
2075: &mt('last revised between [_1] and [_2]',
2076: &Apache::lonlocal::locallocaltime($mafter),
2077: &Apache::lonlocal::locallocaltime($mbefore+24*60*60-1));
2078: $pretty_string =~ s/ 00:00:00//g;
2079: }
2080: if (@queries) {
2081: $result .= join(" AND ",@queries);
2082: }
1.98 harris41 2083: }
1.216 matthew 2084: return ($result,$error,$pretty_string);
1.18 harris41 2085: }
1.6 harris41 2086:
1.122 matthew 2087: ######################################################################
2088: ######################################################################
2089:
1.144 matthew 2090: =pod
2091:
2092: =item ©right_check()
2093:
1.204 matthew 2094: Inputs: $Metadata, a hash pointer of metadata for a resource.
2095:
2096: Returns: 1 if the resource is available to the user making the query,
2097: 0 otherwise.
2098:
1.144 matthew 2099: =cut
2100:
2101: ######################################################################
2102: ######################################################################
2103: sub copyright_check {
2104: my $Metadata = shift;
2105: # Check copyright tags and skip results the user cannot use
2106: my (undef,undef,$resdom,$resname) = split('/',
2107: $Metadata->{'url'});
2108: # Check for priv
2109: if (($Metadata->{'copyright'} eq 'priv') &&
1.243 albertel 2110: (($env{'user.name'} ne $resname) &&
2111: ($env{'user.domain'} ne $resdom))) {
1.144 matthew 2112: return 0;
2113: }
2114: # Check for domain
2115: if (($Metadata->{'copyright'} eq 'domain') &&
1.243 albertel 2116: ($env{'user.domain'} ne $resdom)) {
1.144 matthew 2117: return 0;
2118: }
2119: return 1;
2120: }
2121:
1.151 matthew 2122: ######################################################################
2123: ######################################################################
2124:
2125: =pod
2126:
1.204 matthew 2127: =item &ensure_db_and_table()
1.151 matthew 2128:
2129: Ensure we can get lonmysql to connect to the database and the table we
2130: need exists.
2131:
2132: Inputs: $r, table id
2133:
2134: Returns: undef on error, 1 if the table exists.
2135:
2136: =cut
2137:
2138: ######################################################################
2139: ######################################################################
2140: sub ensure_db_and_table {
2141: my ($r,$table) = @_;
2142: ##
2143: ## Sanity check the table id.
2144: ##
2145: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
2146: $r->print("Unable to retrieve search results. ".
2147: "Unable to determine the table results were stored in. ".
1.256 albertel 2148: &Apache::loncommon::end_page());
1.151 matthew 2149: return undef;
2150: }
2151: ##
2152: ## Make sure we can connect and the table exists.
2153: ##
2154: my $connection_result = &Apache::lonmysql::connect_to_db();
2155: if (!defined($connection_result)) {
2156: $r->print("Unable to connect to the MySQL database where your results".
1.256 albertel 2157: " are stored.".
2158: &Apache::loncommon::end_page());
1.151 matthew 2159: &Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to".
2160: " connect to database.");
2161: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2162: return undef;
2163: }
2164: my $table_check = &Apache::lonmysql::check_table($table);
2165: if (! defined($table_check)) {
1.256 albertel 2166: $r->print("A MySQL error has occurred.</form>".
2167: &Apache::loncommon::end_page());
1.151 matthew 2168: &Apache::lonnet::logthis("lonmysql was unable to determine the status".
2169: " of table ".$table);
2170: return undef;
2171: } elsif (! $table_check) {
2172: $r->print("The table of results could not be found.");
2173: &Apache::lonnet::logthis("The user requested a table, ".$table.
2174: ", that could not be found.");
2175: return undef;
2176: }
2177: return 1;
2178: }
2179:
2180: ######################################################################
2181: ######################################################################
2182:
2183: =pod
2184:
1.204 matthew 2185: =item &print_sort_form()
2186:
2187: The sort feature is not implemented at this time. This form just prints
2188: a link to change the search query.
1.151 matthew 2189:
2190: =cut
2191:
2192: ######################################################################
2193: ######################################################################
2194: sub print_sort_form {
2195: my ($r,$pretty_query_string) = @_;
1.224 matthew 2196:
1.151 matthew 2197: ##
1.187 www 2198: my %SortableFields=&Apache::lonlocal::texthash(
2199: id => 'Default',
1.151 matthew 2200: title => 'Title',
2201: author => 'Author',
2202: subject => 'Subject',
2203: url => 'URL',
2204: version => 'Version Number',
2205: mime => 'Mime type',
2206: lang => 'Language',
2207: owner => 'Owner/Publisher',
2208: copyright => 'Copyright',
2209: hostname => 'Host',
2210: creationdate => 'Creation Date',
1.187 www 2211: lastrevisiondate => 'Revision Date'
1.151 matthew 2212: );
2213: ##
1.243 albertel 2214: my $table = $env{'form.table'};
1.151 matthew 2215: return if (! &ensure_db_and_table($r,$table));
2216: ##
2217: ## Get the number of results
2218: ##
2219: my $total_results = &Apache::lonmysql::number_of_rows($table);
2220: if (! defined($total_results)) {
1.256 albertel 2221: $r->print("A MySQL error has occurred.</form>".
2222: &Apache::loncommon::end_page());
1.151 matthew 2223: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2224: " of rows in table ".$table);
2225: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2226: return;
2227: }
1.257 albertel 2228: my $js =<<END;
2229: <script type="text/javascript">
1.151 matthew 2230: function change_sort() {
2231: var newloc = "/adm/searchcat?phase=results";
1.243 albertel 2232: newloc += "&persistent_db_id=$env{'form.persistent_db_id'}";
1.151 matthew 2233: newloc += "&sortby=";
2234: newloc += document.forms.statusform.elements.sortby.value;
2235: parent.resultsframe.location= newloc;
2236: }
2237: </script>
1.257 albertel 2238: END
2239:
1.258 albertel 2240: my $start_page = &Apache::loncommon::start_page('Results',$js,
1.271 albertel 2241: {'no_title' => 1});
1.257 albertel 2242: my $breadcrumbs=
1.263 albertel 2243: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2244: $env{'form.catalogmode'} ne 'import');
1.257 albertel 2245:
2246: my $result = <<END;
2247: $start_page
2248: $breadcrumbs
1.267 www 2249: <form name="statusform" action="" method="post" target="_top">
1.268 www 2250: <input type="hidden" name="catalogmode" value="import" />
1.270 www 2251: <input type="hidden" name="acts" value="" />
1.151 matthew 2252: END
2253:
2254: #<h2>Sort Results</h2>
2255: #Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();">
1.243 albertel 2256: # $env{'form.sortby'} = 'id' if (! defined($env{'form.sortby'}));
1.151 matthew 2257: # foreach (keys(%SortableFields)) {
2258: # $result.="<option name=\"$_\"";
1.243 albertel 2259: # if ($_ eq $env{'form.sortby'}) {
1.151 matthew 2260: # $result.=" selected ";
2261: # }
2262: # $result.=" >$SortableFields{$_}</option>\n";
2263: # }
2264: # $result.="</select>\n";
2265: my $revise = &revise_button();
2266: $result.=<<END;
2267: <p>
2268: There are $total_results matches to your query. $revise
2269: </p><p>
1.273 www 2270: Search: $pretty_query_string
1.151 matthew 2271: </p>
2272: </form>
2273: END
1.256 albertel 2274: $r->print($result.&Apache::loncommon::end_page());
1.151 matthew 2275: return;
2276: }
2277:
1.144 matthew 2278: #####################################################################
2279: #####################################################################
2280:
2281: =pod
2282:
2283: =item MySQL Table Description
2284:
2285: MySQL table creation requires a precise description of the data to be
2286: stored. The use of the correct types to hold data is vital to efficient
2287: storage and quick retrieval of records. The columns must be described in
2288: the following format:
2289:
2290: =cut
2291:
1.170 matthew 2292: #####################################################################
2293: #####################################################################
1.204 matthew 2294: #
2295: # These should probably be scoped but I don't have time right now...
2296: #
2297: my @Datatypes;
2298: my @Fullindicies;
1.147 matthew 2299:
1.144 matthew 2300: ######################################################################
2301: ######################################################################
2302:
2303: =pod
2304:
1.146 matthew 2305: =item &create_results_table()
2306:
2307: Creates the table of search results by calling lonmysql. Stores the
1.243 albertel 2308: table id in $env{'form.table'}
1.146 matthew 2309:
1.276 raeburn 2310: Inputs: search area - either res or portfolio
1.146 matthew 2311:
2312: Returns: the identifier of the table on success, undef on error.
2313:
2314: =cut
2315:
2316: ######################################################################
2317: ######################################################################
1.204 matthew 2318: sub set_up_table_structure {
1.276 raeburn 2319: my ($tabletype) = @_;
1.204 matthew 2320: my ($datatypes,$fullindicies) =
1.276 raeburn 2321: &LONCAPA::lonmetadata::describe_metadata_storage($tabletype);
1.212 matthew 2322: # Copy the table description before modifying it...
2323: @Datatypes = @{$datatypes};
2324: unshift(@Datatypes,{name => 'id',
1.204 matthew 2325: type => 'MEDIUMINT',
2326: restrictions => 'UNSIGNED NOT NULL',
2327: primary_key => 'yes',
2328: auto_inc => 'yes' });
2329: @Fullindicies = @{$fullindicies};
2330: return;
2331: }
2332:
1.146 matthew 2333: sub create_results_table {
1.276 raeburn 2334: my ($area) = @_;
2335: if ($area eq 'portfolio') {
2336: &set_up_table_structure('portfolio_search');
2337: } else {
2338: &set_up_table_structure('metadata');
2339: }
1.146 matthew 2340: my $table = &Apache::lonmysql::create_table
1.170 matthew 2341: ( { columns => \@Datatypes,
1.172 matthew 2342: FULLTEXT => [{'columns' => \@Fullindicies},],
1.146 matthew 2343: } );
2344: if (defined($table)) {
1.243 albertel 2345: $env{'form.table'} = $table;
1.146 matthew 2346: return $table;
2347: }
2348: return undef; # Error...
2349: }
1.148 matthew 2350:
1.146 matthew 2351: ######################################################################
2352: ######################################################################
2353:
2354: =pod
2355:
1.150 matthew 2356: =item Search Status update functions
1.144 matthew 2357:
1.150 matthew 2358: Each of the following functions changes the values of one of the
2359: input fields used to display the search status to the user. The names
2360: should be explanatory.
1.144 matthew 2361:
1.150 matthew 2362: Inputs: Apache request handler ($r), text to display.
1.148 matthew 2363:
1.150 matthew 2364: Returns: Nothing.
1.148 matthew 2365:
2366: =over 4
2367:
2368: =item &update_count_status()
2369:
1.150 matthew 2370: =item &update_status()
1.148 matthew 2371:
1.150 matthew 2372: =item &update_seconds()
1.148 matthew 2373:
2374: =back
2375:
2376: =cut
2377:
2378: ######################################################################
2379: ######################################################################
2380: sub update_count_status {
2381: my ($r,$text) = @_;
2382: $text =~ s/\'/\\\'/g;
2383: $r->print
2384: ("<script>document.statusform.count.value = ' $text'</script>\n");
2385: $r->rflush();
2386: }
2387:
1.150 matthew 2388: sub update_status {
1.148 matthew 2389: my ($r,$text) = @_;
2390: $text =~ s/\'/\\\'/g;
2391: $r->print
1.150 matthew 2392: ("<script>document.statusform.status.value = ' $text'</script>\n");
1.148 matthew 2393: $r->rflush();
2394: }
2395:
1.214 matthew 2396: {
1.250 www 2397: my $max_time = 300; # seconds for the search to complete
1.214 matthew 2398: my $start_time = 0;
2399: my $last_time = 0;
2400:
2401: sub reset_timing {
2402: $start_time = 0;
2403: $last_time = 0;
2404: }
2405:
2406: sub time_left {
2407: if ($start_time == 0) {
2408: $start_time = time;
2409: }
2410: my $time_left = $max_time - (time - $start_time);
2411: $time_left = 0 if ($time_left < 0);
2412: return $time_left;
2413: }
2414:
1.150 matthew 2415: sub update_seconds {
1.214 matthew 2416: my ($r) = @_;
2417: my $time = &time_left();
2418: if (($last_time-$time) > 0) {
2419: $r->print("<script>".
2420: "document.statusform.seconds.value = '$time'".
2421: "</script>\n");
2422: $r->rflush();
2423: }
2424: $last_time = $time;
2425: }
2426:
1.148 matthew 2427: }
2428:
2429: ######################################################################
2430: ######################################################################
2431:
2432: =pod
2433:
1.204 matthew 2434: =item &revise_button()
1.151 matthew 2435:
2436: Inputs: None
2437:
2438: Returns: html string for a 'revise search' button.
2439:
2440: =cut
2441:
2442: ######################################################################
2443: ######################################################################
2444: sub revise_button {
2445: my $revise_phase = 'disp_basic';
1.243 albertel 2446: $revise_phase = 'disp_adv' if ($env{'form.searchmode'} eq 'advanced');
1.151 matthew 2447: my $newloc = '/adm/searchcat'.
1.243 albertel 2448: '?persistent_db_id='.$env{'form.persistent_db_id'}.
1.158 matthew 2449: '&cleargroupsort=1'.
1.151 matthew 2450: '&phase='.$revise_phase;
2451: my $result = qq{<input type="button" value="Revise search" name="revise"} .
2452: qq{ onClick="parent.location='$newloc';" /> };
2453: return $result;
2454: }
2455:
2456: ######################################################################
2457: ######################################################################
2458:
2459: =pod
2460:
1.204 matthew 2461: =item &run_search()
2462:
2463: Executes a search query by sending it the the other servers and putting the
2464: results into MySQL.
1.144 matthew 2465:
2466: =cut
2467:
2468: ######################################################################
2469: ######################################################################
2470: sub run_search {
1.276 raeburn 2471: my ($r,$query,$customquery,$customshow,$serverlist,
2472: $pretty_string,$area) = @_;
2473: my $tabletype = 'metadata';
2474: if ($area eq 'portfolio') {
2475: $tabletype = 'portfolio_search';
2476: }
1.150 matthew 2477: my $connection = $r->connection;
1.144 matthew 2478: #
1.146 matthew 2479: # Print run_search header
2480: #
1.258 albertel 2481: my $start_page = &Apache::loncommon::start_page('Search Status',undef,
1.271 albertel 2482: {'no_title' => 1});
1.263 albertel 2483: my $breadcrumbs =
2484: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2485: $env{'form.catalogmode'} ne 'import');
1.151 matthew 2486: $r->print(<<END);
1.257 albertel 2487: $start_page
2488: $breadcrumbs
1.151 matthew 2489: <form name="statusform" action="" method="post">
1.270 www 2490: <input type="hidden" name="acts" value="" />
1.151 matthew 2491: END
1.230 matthew 2492: # Remove leading and trailing <br />
2493: $pretty_string =~ s:^\s*<br />::i;
2494: $pretty_string =~ s:(<br />)*\s*$::im;
2495: my @Lines = split("<br />",$pretty_string);
2496: # I keep getting blank items at the end of the list, hence the following:
2497: while ($Lines[-1] =~ /^\s*$/ && @Lines) {
2498: pop(@Lines);
2499: }
1.152 matthew 2500: if (@Lines > 2) {
1.230 matthew 2501: $pretty_string = join '<br />',(@Lines[0..2],'....<br />');
1.151 matthew 2502: }
1.214 matthew 2503: $r->print(&mt("Search: [_1]",$pretty_string));
1.146 matthew 2504: $r->rflush();
2505: #
1.145 matthew 2506: # Determine the servers we need to contact.
1.144 matthew 2507: my @Servers_to_contact;
2508: if (defined($serverlist)) {
1.152 matthew 2509: if (ref($serverlist) eq 'ARRAY') {
2510: @Servers_to_contact = @$serverlist;
2511: } else {
2512: @Servers_to_contact = ($serverlist);
2513: }
1.144 matthew 2514: } else {
2515: @Servers_to_contact = sort(keys(%Apache::lonnet::libserv));
2516: }
2517: my %Server_status;
1.214 matthew 2518: #
2519: # Check on the mysql table we will use to store results.
1.243 albertel 2520: my $table =$env{'form.table'};
1.150 matthew 2521: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.147 matthew 2522: $r->print("Unable to determine table id to store search results in.".
1.256 albertel 2523: "The search has been aborted.".
2524: &Apache::loncommon::end_page());
1.147 matthew 2525: return;
2526: }
2527: my $table_status = &Apache::lonmysql::check_table($table);
2528: if (! defined($table_status)) {
1.256 albertel 2529: $r->print("Unable to determine status of table.".
2530: &Apache::loncommon::end_page());
1.147 matthew 2531: &Apache::lonnet::logthis("Bogus table id of $table for ".
1.243 albertel 2532: "$env{'user.name'} @ $env{'user.domain'}");
1.147 matthew 2533: &Apache::lonnet::logthis("lonmysql error = ".
1.144 matthew 2534: &Apache::lonmysql::get_error());
1.147 matthew 2535: return;
2536: }
2537: if (! $table_status) {
1.204 matthew 2538: &Apache::lonnet::logthis("lonmysql error = ".
2539: &Apache::lonmysql::get_error());
2540: &Apache::lonnet::logthis("lonmysql debug = ".
2541: &Apache::lonmysql::get_debug());
2542: &Apache::lonnet::logthis('table status = "'.$table_status.'"');
1.147 matthew 2543: $r->print("The table id,$table, we tried to use is invalid.".
1.256 albertel 2544: "The search has been aborted.".
2545: &Apache::loncommon::end_page());
1.144 matthew 2546: return;
2547: }
1.145 matthew 2548: ##
1.146 matthew 2549: ## Prepare for the big loop.
1.144 matthew 2550: my $hitcountsum;
1.276 raeburn 2551: my %matches;
1.144 matthew 2552: my $server;
2553: my $status;
1.151 matthew 2554: my $revise = &revise_button();
1.148 matthew 2555: $r->print(<<END);
2556: <table>
1.151 matthew 2557: <tr><th>Status</th><th>Total Matches</th><th>Time Remaining</th><th></th></tr>
1.148 matthew 2558: <tr>
1.240 matthew 2559: <td><input type="text" name="status" value="" size="50" /></td>
1.150 matthew 2560: <td><input type="text" name="count" value="" size="10" /></td>
2561: <td><input type="text" name="seconds" value="" size="8" /></td>
1.151 matthew 2562: <td>$revise</td>
1.148 matthew 2563: </tr>
2564: </table>
2565: </form>
2566: END
2567: $r->rflush();
1.214 matthew 2568: &reset_timing();
2569: &update_seconds($r);
2570: &update_status($r,&mt('contacting [_1]',$Servers_to_contact[0]));
2571: while (&time_left() &&
1.144 matthew 2572: ((@Servers_to_contact) || keys(%Server_status))) {
1.214 matthew 2573: &update_seconds($r);
2574: #
2575: # Send out a search request
1.144 matthew 2576: if (@Servers_to_contact) {
2577: # Contact one server
2578: my $server = shift(@Servers_to_contact);
1.214 matthew 2579: &update_status($r,&mt('contacting [_1]',$server));
1.144 matthew 2580: my $reply=&Apache::lonnet::metadata_query($query,$customquery,
2581: $customshow,[$server]);
2582: ($server) = keys(%$reply);
2583: $Server_status{$server} = $reply->{$server};
2584: } else {
1.150 matthew 2585: # wait a sec. to give time for files to be written
2586: # This sleep statement is here instead of outside the else
2587: # block because we do not want to pause if we have servers
2588: # left to contact.
1.183 matthew 2589: if (scalar (keys(%Server_status))) {
2590: &update_status($r,
1.214 matthew 2591: &mt('waiting on [_1]',join(' ',keys(%Server_status))));
1.183 matthew 2592: }
1.150 matthew 2593: sleep(1);
1.144 matthew 2594: }
1.159 matthew 2595: #
2596: # Loop through the servers we have contacted but do not
2597: # have results from yet, looking for results.
1.228 matthew 2598: foreach my $server (keys(%Server_status)) {
1.150 matthew 2599: last if ($connection->aborted());
1.214 matthew 2600: &update_seconds($r);
1.228 matthew 2601: my $status = $Server_status{$server};
1.144 matthew 2602: if ($status eq 'con_lost') {
2603: delete ($Server_status{$server});
2604: next;
2605: }
1.276 raeburn 2606: $status=~s|/||g;
1.242 albertel 2607: my $datafile=$r->dir_config('lonDaemons').'/tmp/'.$status;
1.144 matthew 2608: if (-e $datafile && ! -e "$datafile.end") {
1.214 matthew 2609: &update_status($r,&mt('Receiving results from [_1]',$server));
1.144 matthew 2610: next;
2611: }
1.150 matthew 2612: last if ($connection->aborted());
1.144 matthew 2613: if (-e "$datafile.end") {
1.214 matthew 2614: &update_status($r,&mt('Reading results from [_1]',$server));
1.144 matthew 2615: if (-z "$datafile") {
2616: delete($Server_status{$server});
2617: next;
2618: }
2619: my $fh;
2620: if (!($fh=Apache::File->new($datafile))) {
1.146 matthew 2621: $r->print("Unable to open search results file for ".
1.145 matthew 2622: "server $server. Omitting from search");
1.150 matthew 2623: delete($Server_status{$server});
2624: next;
1.144 matthew 2625: }
2626: # Read in the whole file.
2627: while (my $result = <$fh>) {
1.150 matthew 2628: last if ($connection->aborted());
1.214 matthew 2629: #
2630: # Records are stored one per line
1.144 matthew 2631: chomp($result);
1.214 matthew 2632: next if (! $result);
2633: #
1.144 matthew 2634: # Parse the result.
1.276 raeburn 2635: my %Fields = &parse_raw_result($result,$server,$tabletype);
1.144 matthew 2636: $Fields{'hostname'} = $server;
1.214 matthew 2637: #
1.248 www 2638: # Skip if external and we did not want that
2639: next if ((! $env{'form.inclext'}) && ($Fields{'url'}=~/^\/ext\//));
1.214 matthew 2640: # Skip based on copyright
1.144 matthew 2641: next if (! ©right_check(\%Fields));
1.248 www 2642:
1.276 raeburn 2643: if ($area eq 'portfolio') {
2644: next if (defined($matches{$Fields{'url'}}));
2645: # Skip if inaccessible
2646: next if (!&Apache::lonnet::portfolio_access($Fields{'url'}));
2647: $matches{$Fields{'url'}} = 1;
2648: }
1.214 matthew 2649: #
1.144 matthew 2650: # Store the result in the mysql database
2651: my $result = &Apache::lonmysql::store_row($table,\%Fields);
2652: if (! defined($result)) {
1.146 matthew 2653: $r->print(&Apache::lonmysql::get_error());
1.144 matthew 2654: }
1.214 matthew 2655: #
1.144 matthew 2656: $hitcountsum ++;
1.214 matthew 2657: &update_seconds($r);
1.150 matthew 2658: if ($hitcountsum % 50 == 0) {
2659: &update_count_status($r,$hitcountsum);
2660: }
1.214 matthew 2661: }
1.144 matthew 2662: $fh->close();
2663: # $server is only deleted if the results file has been
2664: # found and (successfully) opened. This may be a bad idea.
2665: delete($Server_status{$server});
2666: }
1.150 matthew 2667: last if ($connection->aborted());
1.148 matthew 2668: &update_count_status($r,$hitcountsum);
1.144 matthew 2669: }
1.150 matthew 2670: last if ($connection->aborted());
1.214 matthew 2671: &update_seconds($r);
1.144 matthew 2672: }
1.214 matthew 2673: &update_status($r,&mt('Search Complete [_1]',$server));
2674: &update_seconds($r);
1.204 matthew 2675: #
1.214 matthew 2676: &Apache::lonmysql::disconnect_from_db(); # This is unneccessary
1.204 matthew 2677: #
1.144 matthew 2678: # We have run out of time or run out of servers to talk to and
1.214 matthew 2679: # results to get, so let the client know the top frame needs to be
2680: # loaded from /adm/searchcat
1.256 albertel 2681: $r->print(&Apache::loncommon::end_page());
1.267 www 2682: # if ($env{'form.catalogmode'} ne 'import') {
1.153 matthew 2683: $r->print("<script>".
2684: "window.location='/adm/searchcat?".
2685: "phase=sort&".
1.243 albertel 2686: "persistent_db_id=$env{'form.persistent_db_id'}';".
1.153 matthew 2687: "</script>");
1.224 matthew 2688: # }
1.144 matthew 2689: return;
2690: }
2691:
2692: ######################################################################
2693: ######################################################################
1.204 matthew 2694:
1.144 matthew 2695: =pod
2696:
1.204 matthew 2697: =item &prev_next_buttons()
2698:
2699: Returns html for the previous and next buttons on the search results page.
1.144 matthew 2700:
2701: =cut
2702:
2703: ######################################################################
2704: ######################################################################
1.146 matthew 2705: sub prev_next_buttons {
1.145 matthew 2706: my ($current_min,$show,$total,$parms) = @_;
2707: return '' if ($show eq 'all'); # No links if you get them all at once.
1.214 matthew 2708: #
1.223 matthew 2709: # Create buttons
2710: my $buttons = '<input type="submit" name="prev" value="'.&mt('Prev').'" ';
2711: $buttons .= '/>';
2712: $buttons .= ' 'x3;
2713: $buttons .= '<input type="submit" name="reload" '.
2714: 'value="'.&mt('Reload').'" />';
2715: $buttons .= ' 'x3;
2716: $buttons .= '<input type="submit" name="next" value="'.&mt('Next').'" ';
2717: $buttons .= '/>';
2718: return $buttons;
1.144 matthew 2719: }
1.204 matthew 2720:
1.144 matthew 2721: ######################################################################
2722: ######################################################################
2723:
2724: =pod
2725:
1.204 matthew 2726: =item &display_results()
2727:
2728: Prints the results out for selection and perusal.
1.144 matthew 2729:
2730: =cut
2731:
2732: ######################################################################
2733: ######################################################################
2734: sub display_results {
1.276 raeburn 2735: my ($r,$importbutton,$closebutton,$diropendb,$area) = @_;
1.150 matthew 2736: my $connection = $r->connection;
2737: $r->print(&search_results_header($importbutton,$closebutton));
1.144 matthew 2738: ##
2739: ## Set viewing function
2740: ##
1.243 albertel 2741: my $viewfunction = $Views{$env{'form.viewselect'}};
1.144 matthew 2742: if (!defined($viewfunction)) {
2743: $r->print("Internal Error - Bad view selected.\n");
2744: $r->rflush();
2745: return;
2746: }
2747: ##
1.158 matthew 2748: ## $checkbox_num is a count of the number of checkboxes output on the
1.267 www 2749: ## page this is used only during catalogmode=import.
1.158 matthew 2750: my $checkbox_num = 0;
2751: ##
1.144 matthew 2752: ## Get the catalog controls setup
2753: ##
1.146 matthew 2754: my $action = "/adm/searchcat?phase=results";
2755: ##
1.267 www 2756: ## Deal with import by opening the import db file.
2757: if ($env{'form.catalogmode'} eq 'import') {
1.146 matthew 2758: if (! tie(%groupsearch_db,'GDBM_File',$diropendb,
1.148 matthew 2759: &GDBM_WRCREAT(),0640)) {
1.256 albertel 2760: $r->print('Unable to store import results.</form>'.
2761: &Apache::loncommon::end_page());
1.146 matthew 2762: $r->rflush();
2763: return;
2764: }
1.144 matthew 2765: }
1.145 matthew 2766: ##
2767: ## Prepare the table for querying
1.243 albertel 2768: my $table = $env{'form.table'};
1.151 matthew 2769: return if (! &ensure_db_and_table($r,$table));
1.145 matthew 2770: ##
2771: ## Get the number of results
2772: my $total_results = &Apache::lonmysql::number_of_rows($table);
2773: if (! defined($total_results)) {
1.256 albertel 2774: $r->print("A MySQL error has occurred.</form>".
2775: &Apache::loncommon::end_page());
1.145 matthew 2776: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2777: " of rows in table ".$table);
2778: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2779: return;
2780: }
2781: ##
2782: ## Determine how many results we need to get
1.243 albertel 2783: $env{'form.start'} = 1 if (! exists($env{'form.start'}));
2784: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
2785: if (exists($env{'form.prev'})) {
2786: $env{'form.start'} -= $env{'form.show'};
2787: } elsif (exists($env{'form.next'})) {
2788: $env{'form.start'} += $env{'form.show'};
2789: }
2790: $env{'form.start'} = 1 if ($env{'form.start'}<1);
2791: $env{'form.start'} = $total_results if ($env{'form.start'}>$total_results);
2792: my $min = $env{'form.start'};
1.145 matthew 2793: my $max;
1.243 albertel 2794: if ($env{'form.show'} eq 'all') {
1.145 matthew 2795: $max = $total_results ;
2796: } else {
1.243 albertel 2797: $max = $min + $env{'form.show'} - 1;
1.146 matthew 2798: $max = $total_results if ($max > $total_results);
1.145 matthew 2799: }
2800: ##
1.223 matthew 2801: ## Output form elements
2802: $r->print(&hidden_field('table').
2803: &hidden_field('phase').
2804: &hidden_field('persistent_db_id').
1.276 raeburn 2805: &hidden_field('start').
2806: &hidden_field('area')
1.223 matthew 2807: );
1.232 matthew 2808: #
2809: # Build sorting selector
1.241 matthew 2810: my @fields =
2811: (
2812: {key=>'default' },
2813: {key=>'title' },
2814: {key =>'author' },
2815: {key =>'subject'},
2816: {key =>'url',desc=>'URL'},
2817: {key =>'keywords'},
2818: {key =>'language'},
2819: {key =>'creationdate'},
2820: {key =>'lastrevisiondate'},
2821: {key =>'owner'},
2822: {key =>'copyright'},
2823: {key =>'authorspace'},
2824: {key =>'lowestgradelevel'},
2825: {key =>'highestgradelevel'},
2826: {key =>'standards',desc=>'Standards'},
1.276 raeburn 2827: );
2828: if ($area eq 'portfolio') {
2829: push(@fields,
2830: (
2831: {key => 'scope'},
2832: {key => 'keynum'},
2833: ));
2834: } else {
2835: push(@fields,
2836: (
1.241 matthew 2837: {key =>'count',desc=>'Number of accesses'},
2838: {key =>'stdno',desc=>'Students Attempting'},
2839: {key =>'avetries',desc=>'Average Number of Tries'},
2840: {key =>'difficulty',desc=>'Mean Degree of Difficulty'},
2841: {key =>'disc',desc=>'Mean Degree of Discrimination'},
2842: {key =>'clear',desc=>'Evaluation: Clear'},
2843: {key =>'technical',desc=>'Evaluation: Technically Correct'},
2844: {key =>'correct',desc=>'Evaluation: Material is Correct'},
2845: {key =>'helpful',desc=>'Evaluation: Material is Helpful'},
2846: {key =>'depth',desc=>'Evaluation: Material has Depth'},
1.276 raeburn 2847: ));
2848: }
1.241 matthew 2849: my %fieldnames = &Apache::lonmeta::fieldnames();
2850: my @field_order;
2851: foreach my $field_data (@fields) {
2852: push(@field_order,$field_data->{'key'});
2853: if (! exists($field_data->{'desc'})) {
2854: $field_data->{'desc'}=$fieldnames{$field_data->{'key'}};
2855: } else {
2856: if (! defined($field_data->{'desc'})) {
2857: $field_data->{'desc'} = ucfirst($field_data->{'key'});
2858: }
2859: $field_data->{'desc'} = &mt($field_data->{'desc'});
2860: }
2861: }
2862: my %sort_fields = map {$_->{'key'},$_->{'desc'}} @fields;
2863: $sort_fields{'select_form_order'} = \@field_order;
1.248 www 2864: $env{'form.sortorder'} = 'desc' if (! exists($env{'form.sortorder'}));
1.276 raeburn 2865: if (! exists($env{'form.sortfield'})) {
2866: if ($area eq 'portfolio') {
2867: $env{'form.sortfield'} = 'owner';
2868: } else {
2869: $env{'form.sortfield'} = 'count';
2870: }
2871: }
1.248 www 2872: if (! exists($env{'form.sortorder'})) {
2873: if ($env{'form.sortfield'}=~/^(count|stdno|disc|clear|technical|correct|helpful)$/) {
2874: $env{'form.sortorder'}='desc';
2875: } else {
2876: $env{'form.sortorder'}='asc';
2877: }
2878: }
1.241 matthew 2879: my $sortform = &mt('Sort by [_1] [_2]',
1.244 albertel 2880: &Apache::loncommon::select_form($env{'form.sortfield'},
1.232 matthew 2881: 'sortfield',
1.241 matthew 2882: %sort_fields),
1.244 albertel 2883: &Apache::loncommon::select_form($env{'form.sortorder'},
1.241 matthew 2884: 'sortorder',
2885: (asc =>&mt('Ascending'),
2886: desc=>&mt('Descending')
2887: ))
2888: );
1.223 matthew 2889: ##
1.145 matthew 2890: ## Output links (if necessary) for 'prev' and 'next' pages.
1.146 matthew 2891: $r->print
1.232 matthew 2892: ('<table width="100%"><tr><td width="25%" align="right">'.
1.241 matthew 2893: '<nobr>'.$sortform.'</nobr>'.
1.232 matthew 2894: '</td><td width="25%" align="right">'.
1.243 albertel 2895: &prev_next_buttons($min,$env{'form.show'},$total_results).
1.223 matthew 2896: '</td><td align="right">'.
2897: &viewoptions().'</td></tr></table>'
1.146 matthew 2898: );
1.150 matthew 2899: if ($total_results == 0) {
1.256 albertel 2900: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2" />'.
1.187 www 2901: '<h3>'.&mt('There are currently no results').'.</h3>'.
1.256 albertel 2902: "</form>".
2903: &Apache::loncommon::end_page());
1.150 matthew 2904: return;
2905: } else {
1.232 matthew 2906: $r->print('<center>'.
2907: mt('Results [_1] to [_2] out of [_3]',
2908: $min,$max,$total_results).
2909: "</center>\n");
1.150 matthew 2910: }
1.145 matthew 2911: ##
2912: ## Get results from MySQL table
1.232 matthew 2913: my $sort_command = 'id>='.$min.' AND id<='.$max;
1.241 matthew 2914: my $order;
1.244 albertel 2915: if (exists($env{'form.sortorder'})) {
2916: if ($env{'form.sortorder'} eq 'asc') {
1.241 matthew 2917: $order = 'ASC';
1.244 albertel 2918: } elsif ($env{'form.sortorder'} eq 'desc') {
1.241 matthew 2919: $order = 'DESC';
2920: } else {
2921: $order = '';
2922: }
2923: } else {
2924: $order = '';
2925: }
1.244 albertel 2926: if ($env{'form.sortfield'} ne 'default' &&
2927: exists($sort_fields{$env{'form.sortfield'}})) {
2928: $sort_command = $env{'form.sortfield'}.' IS NOT NULL '.
2929: 'ORDER BY '.$env{'form.sortfield'}.' '.$order.
1.249 www 2930: ' LIMIT '.($min-1).','.($max-$min+1);
1.232 matthew 2931: }
2932: my @Results = &Apache::lonmysql::get_rows($table,$sort_command);
1.145 matthew 2933: ##
2934: ## Loop through the results and output them.
1.276 raeburn 2935: my $tabletype = 'metadata';
2936: if ($area eq 'portfolio') {
2937: $tabletype = 'portfolio_search';
2938: }
1.144 matthew 2939: foreach my $row (@Results) {
1.150 matthew 2940: if ($connection->aborted()) {
1.162 www 2941: &cleanup();
1.150 matthew 2942: return;
2943: }
1.276 raeburn 2944: my %Fields = %{&parse_row($tabletype,@$row)};
1.145 matthew 2945: my $output="<p>\n";
1.210 matthew 2946: if (! defined($Fields{'title'}) || $Fields{'title'} eq '') {
2947: $Fields{'title'} = 'Untitled';
2948: }
1.158 matthew 2949: my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'},
2950: $Fields{'id'},$checkbox_num++);
1.144 matthew 2951: # Render the result into html
1.150 matthew 2952: $output.= &$viewfunction($prefix,%Fields);
1.145 matthew 2953: # Print them out as they come in.
1.144 matthew 2954: $r->print($output);
2955: $r->rflush();
2956: }
2957: if (@Results < 1) {
1.187 www 2958: $r->print(&mt("There were no results matching your query"));
1.147 matthew 2959: } else {
2960: $r->print
1.148 matthew 2961: ('<center>'.
1.243 albertel 2962: &prev_next_buttons($min,$env{'form.show'},$total_results,
2963: "table=".$env{'form.table'}.
1.147 matthew 2964: "&phase=results".
2965: "&persistent_db_id=".
1.243 albertel 2966: $env{'form.persistent_db_id'})
1.148 matthew 2967: ."</center>\n"
1.147 matthew 2968: );
1.144 matthew 2969: }
1.256 albertel 2970: $r->print("</form>".&Apache::loncommon::end_page());
1.144 matthew 2971: $r->rflush();
1.150 matthew 2972: untie %groupsearch_db if (tied(%groupsearch_db));
1.144 matthew 2973: return;
2974: }
2975:
2976: ######################################################################
2977: ######################################################################
2978:
2979: =pod
2980:
1.158 matthew 2981: =item &catalogmode_output($title,$url,$fnum,$checkbox_num)
1.145 matthew 2982:
2983: Returns html needed for the various catalog modes. Gets inputs from
1.243 albertel 2984: $env{'form.catalogmode'}. Stores data in %groupsearch_db.
1.145 matthew 2985:
2986: =cut
2987:
2988: ######################################################################
2989: ######################################################################
2990: sub catalogmode_output {
2991: my $output = '';
1.158 matthew 2992: my ($title,$url,$fnum,$checkbox_num) = @_;
1.243 albertel 2993: if ($env{'form.catalogmode'} eq 'interactive') {
1.150 matthew 2994: $title=~ s/\'/\\\'/g;
1.243 albertel 2995: if ($env{'form.catalogmode'} eq 'interactive') {
1.145 matthew 2996: $output.=<<END
2997: <font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"
2998: onClick="javascript:select_data('$title','$url')">
2999: </font>
3000: END
3001: }
1.267 www 3002: } elsif ($env{'form.catalogmode'} eq 'import') {
1.145 matthew 3003: $groupsearch_db{"pre_${fnum}_link"}=$url;
3004: $groupsearch_db{"pre_${fnum}_title"}=$title;
3005: $output.=<<END;
3006: <font size='-1'>
3007: <input type="checkbox" name="returnvalues" value="SELECT"
1.158 matthew 3008: onClick="javascript:queue($checkbox_num,$fnum)" />
1.145 matthew 3009: </font>
3010: END
3011: }
3012: return $output;
3013: }
3014: ######################################################################
3015: ######################################################################
3016:
3017: =pod
3018:
1.204 matthew 3019: =item &parse_row()
1.144 matthew 3020:
3021: Parse a row returned from the database.
3022:
3023: =cut
3024:
3025: ######################################################################
3026: ######################################################################
3027: sub parse_row {
1.276 raeburn 3028: my ($tabletype,@Row) = @_;
1.144 matthew 3029: my %Fields;
1.204 matthew 3030: if (! scalar(@Datatypes)) {
1.276 raeburn 3031: &set_up_table_structure($tabletype);
1.204 matthew 3032: }
1.144 matthew 3033: for (my $i=0;$i<=$#Row;$i++) {
1.265 www 3034: $Fields{$Datatypes[$i]->{'name'}}=&unescape($Row[$i]);
1.144 matthew 3035: }
3036: $Fields{'language'} =
1.198 www 3037: &Apache::loncommon::languagedescription($Fields{'language'});
1.144 matthew 3038: $Fields{'copyrighttag'} =
3039: &Apache::loncommon::copyrightdescription($Fields{'copyright'});
3040: $Fields{'mimetag'} =
3041: &Apache::loncommon::filedescription($Fields{'mime'});
3042: return \%Fields;
3043: }
1.126 matthew 3044:
3045: ###########################################################
3046: ###########################################################
3047:
3048: =pod
3049:
3050: =item &parse_raw_result()
3051:
3052: Takes a line from the file of results and parse it. Returns a hash
1.198 www 3053: with keys according to column labels
1.126 matthew 3054:
3055: In addition, the following tags are set by calling the appropriate
1.198 www 3056: lonnet function: 'language', 'copyrighttag', 'mimetag'.
1.126 matthew 3057:
3058: The 'title' field is set to "Untitled" if the title field is blank.
3059:
3060: 'abstract' and 'keywords' are truncated to 200 characters.
3061:
3062: =cut
3063:
3064: ###########################################################
3065: ###########################################################
3066: sub parse_raw_result {
1.276 raeburn 3067: my ($result,$hostname,$tabletype) = @_;
1.204 matthew 3068: # conclude from self to others regarding fields
1.206 matthew 3069: my %Fields=&LONCAPA::lonmetadata::metadata_col_to_hash
1.276 raeburn 3070: ($tabletype,
3071: map {
1.265 www 3072: &unescape($_);
1.276 raeburn 3073: } (split(/\,/,$result)) );
1.126 matthew 3074: return %Fields;
3075: }
3076:
3077: ###########################################################
3078: ###########################################################
3079:
3080: =pod
3081:
3082: =item &handle_custom_fields()
3083:
3084: =cut
3085:
3086: ###########################################################
3087: ###########################################################
3088: sub handle_custom_fields {
3089: my @results = @{shift()};
3090: my $customshow='';
3091: my $extrashow='';
3092: my @customfields;
1.243 albertel 3093: if ($env{'form.customshow'}) {
3094: $customshow=$env{'form.customshow'};
1.126 matthew 3095: $customshow=~s/[^\w\s]//g;
3096: my @fields=map {
3097: "<font color=\"#008000\">$_:</font><!-- $_ -->";
3098: } split(/\s+/,$customshow);
3099: @customfields=split(/\s+/,$customshow);
3100: if ($customshow) {
3101: $extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n";
3102: }
3103: }
3104: my $customdata='';
3105: my %customhash;
3106: foreach my $result (@results) {
3107: if ($result=~/^(custom\=.*)$/) { # grab all custom metadata
3108: my $tmp=$result;
3109: $tmp=~s/^custom\=//;
1.265 www 3110: my ($k,$v)=map {&unescape($_);
1.126 matthew 3111: } split(/\,/,$tmp);
3112: $customhash{$k}=$v;
3113: }
3114: }
3115: return ($extrashow,\@customfields,\%customhash);
1.41 harris41 3116: }
3117:
1.122 matthew 3118: ######################################################################
3119: ######################################################################
3120:
1.125 matthew 3121: =pod
3122:
1.204 matthew 3123: =item &search_results_header()
1.125 matthew 3124:
1.130 matthew 3125: Output the proper html headers and javascript code to deal with different
3126: calling modes.
3127:
1.243 albertel 3128: Takes most inputs directly from %env, except $mode.
1.130 matthew 3129:
3130: =over 4
3131:
3132: =item $mode is either (at this writing) 'Basic' or 'Advanced'
3133:
3134: =back
1.126 matthew 3135:
1.130 matthew 3136: The following environment variables are checked:
1.126 matthew 3137:
3138: =over 4
3139:
3140: =item 'form.catalogmode'
3141:
1.267 www 3142: Checked for 'interactive' and 'import'.
1.126 matthew 3143:
3144: =item 'form.mode'
3145:
3146: Checked for existance & 'edit' mode.
3147:
3148: =item 'form.form'
3149:
1.191 albertel 3150: Contains the name of the form that has the input fields to set
3151:
1.126 matthew 3152: =item 'form.element'
3153:
1.191 albertel 3154: the name of the input field to put the URL into
3155:
3156: =item 'form.titleelement'
3157:
3158: the name of the input field to put the title into
3159:
1.126 matthew 3160: =back
3161:
1.125 matthew 3162: =cut
3163:
3164: ######################################################################
3165: ######################################################################
3166: sub search_results_header {
1.150 matthew 3167: my ($importbutton,$closebutton) = @_;
1.256 albertel 3168:
1.257 albertel 3169: my $js;
1.125 matthew 3170: # output beginning of search page
3171: # conditional output of script functions dependent on the mode in
3172: # which the search was invoked
1.243 albertel 3173: if ($env{'form.catalogmode'} eq 'interactive'){
3174: if (! exists($env{'form.mode'}) || $env{'form.mode'} ne 'edit') {
1.257 albertel 3175: $js.=<<SCRIPT;
1.125 matthew 3176: <script type="text/javascript">
3177: function select_data(title,url) {
3178: changeTitle(title);
3179: changeURL(url);
1.150 matthew 3180: parent.close();
1.125 matthew 3181: }
3182: function changeTitle(val) {
1.153 matthew 3183: if (parent.opener.inf.document.forms.resinfo.elements.t) {
3184: parent.opener.inf.document.forms.resinfo.elements.t.value=val;
1.125 matthew 3185: }
3186: }
3187: function changeURL(val) {
1.153 matthew 3188: if (parent.opener.inf.document.forms.resinfo.elements.u) {
3189: parent.opener.inf.document.forms.resinfo.elements.u.value=val;
1.125 matthew 3190: }
3191: }
3192: </script>
3193: SCRIPT
1.243 albertel 3194: } elsif ($env{'form.mode'} eq 'edit') {
3195: my $form = $env{'form.form'};
3196: my $element = $env{'form.element'};
3197: my $titleelement = $env{'form.titleelement'};
1.191 albertel 3198: my $changetitle;
3199: if (!$titleelement) {
3200: $changetitle='function changeTitle(val) {}';
3201: } else {
3202: $changetitle=<<END;
3203: function changeTitle(val) {
3204: if (parent.targetwin.document) {
3205: parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val;
3206: } else {
3207: var url = 'forms[\"$form\"].elements[\"$titleelement\"].value';
3208: alert("Unable to transfer data to "+url);
3209: }
3210: }
3211: END
3212: }
3213:
1.257 albertel 3214: $js.=<<SCRIPT;
1.125 matthew 3215: <script type="text/javascript">
3216: function select_data(title,url) {
3217: changeURL(url);
1.191 albertel 3218: changeTitle(title);
1.150 matthew 3219: parent.close();
1.125 matthew 3220: }
1.191 albertel 3221: $changetitle
1.125 matthew 3222: function changeURL(val) {
1.150 matthew 3223: if (parent.targetwin.document) {
3224: parent.targetwin.document.forms["$form"].elements["$element"].value=val;
1.125 matthew 3225: } else {
3226: var url = 'forms[\"$form\"].elements[\"$element\"].value';
3227: alert("Unable to transfer data to "+url);
3228: }
3229: }
3230: </script>
3231: SCRIPT
3232: }
3233: }
1.267 www 3234: $js.=<<SCRIPT if $env{'form.catalogmode'} eq 'import';
1.125 matthew 3235: <script type="text/javascript">
1.158 matthew 3236: function queue(checkbox_num,val) {
1.185 matthew 3237: if (document.forms.results.returnvalues.length != "undefined" &&
3238: typeof(document.forms.results.returnvalues.length) == "number") {
3239: if (document.forms.results.returnvalues[checkbox_num].checked) {
1.270 www 3240: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3241: } else {
1.270 www 3242: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3243: }
1.150 matthew 3244: } else {
1.185 matthew 3245: if (document.forms.results.returnvalues.checked) {
1.270 www 3246: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3247: } else {
1.270 www 3248: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3249: }
1.150 matthew 3250: }
1.125 matthew 3251: }
3252: function select_group() {
1.150 matthew 3253: parent.window.location=
1.267 www 3254: "/adm/groupsort?mode=$env{'form.mode'}&catalogmode=import&acts="+
1.270 www 3255: parent.statusframe.document.forms.statusform.elements.acts.value;
1.125 matthew 3256: }
3257: </script>
3258: SCRIPT
1.256 albertel 3259:
1.257 albertel 3260: my $start_page = &Apache::loncommon::start_page(undef,$js,
3261: {'only_body' =>1});
1.258 albertel 3262: my $result=<<END;
1.257 albertel 3263: $start_page
1.267 www 3264: <form name="results" method="post" action="/adm/searchcat">
1.150 matthew 3265: $importbutton
1.130 matthew 3266: END
1.125 matthew 3267: return $result;
3268: }
3269:
1.150 matthew 3270: sub results_link {
1.243 albertel 3271: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3272: "&persistent_db_id=".$env{'form.persistent_db_id'};
1.150 matthew 3273: my $results_link = $basic_link."&phase=results".
1.151 matthew 3274: "&pause=1"."&start=1";
1.150 matthew 3275: return $results_link;
3276: }
3277:
1.146 matthew 3278: ######################################################################
3279: ######################################################################
3280: sub print_frames_interface {
3281: my $r = shift;
1.243 albertel 3282: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3283: "&persistent_db_id=".$env{'form.persistent_db_id'};
1.146 matthew 3284: my $run_search_link = $basic_link."&phase=run_search";
1.150 matthew 3285: my $results_link = &results_link();
1.260 albertel 3286: my $js = <<JS;
3287: <script type="text/javascript">
3288: var targetwin = opener;
3289: var queue = '';
3290: </script>
3291: JS
1.262 albertel 3292:
3293: my $start_page =
3294: &Apache::loncommon::start_page('LON-CAPA Digital Library Search Results',
3295: $js,
3296: {'frameset' => 1,
3297: 'add_entries' => {
3298: 'rows' => "150,*",},});
3299: my $end_page =
3300: &Apache::loncommon::end_page({'frameset' => 1});
3301:
1.146 matthew 3302: my $result = <<"ENDFRAMES";
1.262 albertel 3303: $start_page
1.146 matthew 3304: <frame name="statusframe" src="$run_search_link">
3305: <frame name="resultsframe" src="$results_link">
1.262 albertel 3306: $end_page
1.146 matthew 3307: ENDFRAMES
3308:
3309: $r->print($result);
3310: return;
3311: }
3312:
3313: ######################################################################
3314: ######################################################################
1.125 matthew 3315:
1.224 matthew 3316: sub has_stat_data {
3317: my ($values) = @_;
3318: if ( (defined($values->{'count'}) && $values->{'count'} ne '') ||
3319: (defined($values->{'stdno'}) && $values->{'stdno'} ne '') ||
3320: (defined($values->{'disc'}) && $values->{'disc'} ne '') ||
3321: (defined($values->{'avetries'}) && $values->{'avetries'} ne '') ||
3322: (defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) {
3323: return 1;
3324: }
3325: return 0;
3326: }
3327:
3328: sub statfields {
3329: return ('count','stdno','disc','avetries','difficulty');
3330: }
3331:
3332: sub has_eval_data {
3333: my ($values) = @_;
3334: if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') ||
3335: (defined($values->{'technical'}) && $values->{'technical'} ne '') ||
3336: (defined($values->{'correct'}) && $values->{'correct'} ne '') ||
3337: (defined($values->{'helpful'}) && $values->{'helpful'} ne '') ||
3338: (defined($values->{'depth'}) && $values->{'depth'} ne '')) {
3339: return 1;
3340: }
3341: return 0;
3342: }
3343:
3344: sub evalfields {
3345: return ('clear','technical','correct','helpful','depth');
3346: }
3347:
3348: ######################################################################
3349: ######################################################################
3350:
1.122 matthew 3351: =pod
3352:
3353: =item Metadata Viewing Functions
3354:
3355: Output is a HTML-ified string.
1.204 matthew 3356:
1.122 matthew 3357: Input arguments are title, author, subject, url, keywords, version,
3358: notes, short abstract, mime, language, creation date,
1.126 matthew 3359: last revision date, owner, copyright, hostname, and
1.122 matthew 3360: extra custom metadata to show.
3361:
3362: =over 4
3363:
3364: =item &detailed_citation_view()
3365:
3366: =cut
3367:
3368: ######################################################################
3369: ######################################################################
1.50 harris41 3370: sub detailed_citation_view {
1.150 matthew 3371: my ($prefix,%values) = @_;
1.218 matthew 3372: my $result;
1.247 www 3373: my $jumpurl=$values{'url'};
1.275 albertel 3374: $jumpurl=~s|^/ext/|http://|;
1.218 matthew 3375: $result .= '<b>'.$prefix.
1.267 www 3376: '<img src="'.&Apache::loncommon::icon($values{'url'}).'" />'.' '.
1.247 www 3377: '<a href="'.$jumpurl.'" '.
1.274 www 3378: 'target="preview">'.$values{'title'}."</a></b>\n";
1.218 matthew 3379: $result .= "<p>\n";
3380: $result .= '<b>'.$values{'author'}.'</b>,'.
3381: ' <i>'.$values{'owner'}.'</i><br />';
3382: foreach my $field
3383: (
1.223 matthew 3384: { name=>'url',
3385: translate => '<b>URL:</b> [_1]',
3386: special => 'url link',},
1.218 matthew 3387: { name=>'subject',
3388: translate => '<b>Subject:</b> [_1]',},
3389: { name=>'keywords',
3390: translate => '<b>Keywords:</b> [_1]',},
3391: { name=>'notes',
3392: translate => '<b>Notes:</b> [_1]',},
3393: { name=>'mimetag',
3394: translate => '<b>MIME Type:</b> [_1]',},
3395: { name=>'standards',
3396: translate => '<b>Standards:</b>[_1]',},
3397: { name=>'copyrighttag',
3398: translate => '<b>Copyright/Distribution:</b> [_1]',},
1.223 matthew 3399: { name=>'count',
1.225 matthew 3400: format => "%d",
1.223 matthew 3401: translate => '<b>Access Count:</b> [_1]',},
1.218 matthew 3402: { name=>'stdno',
1.225 matthew 3403: format => "%d",
1.218 matthew 3404: translate => '<b>Number of Students:</b> [_1]',},
3405: { name=>'avetries',
1.225 matthew 3406: format => "%.2f",
1.218 matthew 3407: translate => '<b>Average Tries:</b> [_1]',},
3408: { name=>'disc',
1.225 matthew 3409: format => "%.2f",
1.218 matthew 3410: translate => '<b>Degree of Discrimination:</b> [_1]',},
3411: { name=>'difficulty',
1.225 matthew 3412: format => "%.2f",
1.218 matthew 3413: translate => '<b>Degree of Difficulty:</b> [_1]',},
3414: { name=>'clear',
1.225 matthew 3415: format => "%.2f",
1.218 matthew 3416: translate => '<b>Clear:</b> [_1]',},
3417: { name=>'depth',
1.225 matthew 3418: format => "%.2f",
1.218 matthew 3419: translate => '<b>Depth:</b> [_1]',},
3420: { name=>'helpful',
1.225 matthew 3421: format => "%.2f",
1.218 matthew 3422: translate => '<b>Helpful:</b> [_1]',},
3423: { name=>'correct',
1.225 matthew 3424: format => "%.2f",
1.224 matthew 3425: translate => '<b>Correct:</b> [_1]',},
1.218 matthew 3426: { name=>'technical',
1.225 matthew 3427: format => "%.2f",
1.218 matthew 3428: translate => '<b>Technical:</b> [_1]',},
1.225 matthew 3429: { name=>'comefrom_list',
3430: type => 'list',
3431: translate => 'Resources that lead up to this resource in maps',},
3432: { name=>'goto_list',
3433: type => 'list',
3434: translate => 'Resources that follow this resource in maps',},
1.226 matthew 3435: { name=>'sequsage_list',
1.225 matthew 3436: type => 'list',
3437: translate => 'Resources using or importing resource',},
1.218 matthew 3438: ) {
1.225 matthew 3439: next if (! exists($values{$field->{'name'}}) ||
3440: $values{$field->{'name'}} eq '');
3441: if (exists($field->{'type'}) && $field->{'type'} eq 'list') {
1.267 www 3442: $result .= '<b>'.&mt($field->{'translate'}).'</b>';
1.225 matthew 3443: foreach my $item (split(',',$values{$field->{'name'}})){
1.267 www 3444: $result .=
1.274 www 3445: &Apache::lonhtmlcommon::crumbs(&Apache::lonnet::clutter($item),
3446: 'preview',
3447: '',
1.269 www 3448: (($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),2,0,1);
1.225 matthew 3449: }
3450: } elsif (exists($field->{'format'}) && $field->{'format'} ne ''){
3451: $result.= &mt($field->{'translate'},
3452: sprintf($field->{'format'},
1.230 matthew 3453: $values{$field->{'name'}}))."<br />\n";
1.225 matthew 3454: } else {
1.223 matthew 3455: if ($field->{'special'} eq 'url link') {
1.274 www 3456: if ($jumpurl=~/^http\:\/\//) {
3457: $result.='<tt>'.$jumpurl.'</tt>';
3458: } else {
3459: $result .=
1.267 www 3460: &Apache::lonhtmlcommon::crumbs($jumpurl,
1.274 www 3461: 'preview',
1.267 www 3462: '',
1.269 www 3463: (($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),3,0,1);
1.274 www 3464: }
1.223 matthew 3465: } else {
3466: $result.= &mt($field->{'translate'},
3467: $values{$field->{'name'}});
3468: }
3469: $result .= "<br />\n";
1.225 matthew 3470: }
1.223 matthew 3471: }
3472: $result .= "</p>";
3473: if (exists($values{'extrashow'}) && $values{'extrashow'} ne '') {
3474: $result .= '<p>'.$values{'extrashow'}.'</p>';
3475: }
3476: if (exists($values{'shortabstract'}) && $values{'shortabstract'} ne '') {
3477: $result .= '<p>'.$values{'shortabstract'}.'</p>';
1.218 matthew 3478: }
3479: $result .= '<hr align="left" width="200" noshade />'."\n";
1.50 harris41 3480: return $result;
1.222 matthew 3481: }
3482:
1.255 www 3483: sub detailed_citation_preview {
3484: my ($prefix,%values)=@_;
3485: return '<table><tr><td>'.
3486: &detailed_citation_view($prefix,%values).
3487: '</td><td>'.
3488: &Apache::lonindexer::showpreview($values{'url'}).
3489: '</td></tr></table><hr />';
3490: }
3491:
3492:
1.222 matthew 3493: ######################################################################
3494: ######################################################################
3495:
1.122 matthew 3496: =pod
3497:
3498: =item &summary_view()
3499:
3500: =cut
3501: ######################################################################
3502: ######################################################################
1.50 harris41 3503: sub summary_view {
1.150 matthew 3504: my ($prefix,%values) = @_;
1.192 albertel 3505: my $icon=&Apache::loncommon::icon($values{'url'});
1.241 matthew 3506: my $result=qq{$prefix<img src="$icon" />};
1.244 albertel 3507: if (exists($env{'form.sortfield'}) &&
3508: $env{'form.sortfield'} !~ /^(default|
1.241 matthew 3509: author|
3510: url|
3511: title|
3512: owner|
3513: lastrevisiondate|
3514: copyright)$/x) {
1.244 albertel 3515: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3516: if (! defined($tmp)) { $tmp = 'undefined'; }
3517: $result .= ' '.$tmp.' ';
3518: }
1.247 www 3519: my $jumpurl=$values{'url'};
1.274 www 3520: my $link;
1.275 albertel 3521: if ($jumpurl=~m|^/ext/|) {
3522: $jumpurl=~s|^/ext/|http://|;
1.274 www 3523: $link='<br /><tt>'.$jumpurl.'</tt>';
3524: } else {
3525: $link=&Apache::lonhtmlcommon::crumbs($jumpurl,
3526: 'preview',
1.267 www 3527: '',
1.269 www 3528: (($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),2,0,1);
1.274 www 3529: }
1.241 matthew 3530: $result.=<<END;
1.247 www 3531: <a href="$jumpurl"
1.274 www 3532: target='preview'>$values{'title'}</a>$link
1.241 matthew 3533: $values{'author'}, $values{'owner'} -- $values{'lastrevisiondate'}<br />
1.126 matthew 3534: $values{'copyrighttag'}<br />
3535: $values{'extrashow'}
1.50 harris41 3536: </p>
1.150 matthew 3537: <hr align='left' width='200' noshade />
1.50 harris41 3538: END
3539: return $result;
3540: }
3541:
1.255 www 3542: sub summary_preview {
3543: my ($prefix,%values)=@_;
3544: return '<table><tr><td>'.
3545: &summary_view($prefix,%values).
3546: '</td><td>'.
3547: &Apache::lonindexer::showpreview($values{'url'}).
3548: '</td></tr></table><hr />';
3549: }
3550:
1.122 matthew 3551: ######################################################################
3552: ######################################################################
3553:
3554: =pod
3555:
1.150 matthew 3556: =item &compact_view()
3557:
3558: =cut
3559:
3560: ######################################################################
3561: ######################################################################
3562: sub compact_view {
3563: my ($prefix,%values) = @_;
1.247 www 3564: my $jumpurl=$values{'url'};
1.274 www 3565: my $link;
1.275 albertel 3566: if ($jumpurl=~m|^/ext/|) {
3567: $jumpurl=~s|^/ext/|http://|;
1.274 www 3568: $link='<tt>'.$jumpurl.'</tt>';
3569: } else {
3570: $link=&Apache::lonhtmlcommon::crumbs($jumpurl,
3571: 'preview',
1.267 www 3572: '',
1.269 www 3573: (($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),1,1,1).' ';
1.274 www 3574: }
1.223 matthew 3575: my $result =
1.241 matthew 3576: $prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).'">';
1.244 albertel 3577: if (exists($env{'form.sortfield'}) &&
3578: $env{'form.sortfield'} !~ /^(default|author|url|title)$/) {
3579: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3580: if (! defined($tmp)) { $tmp = 'undefined'; }
3581: $result .= ' '.$tmp.' ';
3582: }
1.274 www 3583: $result.=' <a href="'.$jumpurl.'" target="preview">'.
1.267 www 3584: $values{'title'}.'</a>'.(' 'x2).$link.
1.247 www 3585: '<b>'.$values{'author'}.'</b> ('.$values{'domain'}.')<br />';
1.150 matthew 3586: return $result;
3587: }
3588:
3589:
3590: ######################################################################
3591: ######################################################################
3592:
3593: =pod
3594:
1.122 matthew 3595: =item &fielded_format_view()
3596:
3597: =cut
3598:
3599: ######################################################################
3600: ######################################################################
1.50 harris41 3601: sub fielded_format_view {
1.150 matthew 3602: my ($prefix,%values) = @_;
1.192 albertel 3603: my $icon=&Apache::loncommon::icon($values{'url'});
1.222 matthew 3604: my %Translated = &Apache::lonmeta::fieldnames();
1.247 www 3605: my $jumpurl=$values{'url'};
1.275 albertel 3606: $jumpurl=~s|^/ext/|http://|;
1.247 www 3607:
1.50 harris41 3608: my $result=<<END;
1.192 albertel 3609: $prefix <img src="$icon" />
1.222 matthew 3610: <dl>
3611: <dt>URL:</dt>
1.247 www 3612: <dd><a href="$jumpurl"
1.274 www 3613: target='preview'>$values{'url'}</a></dd>
1.50 harris41 3614: END
1.239 matthew 3615: foreach my $field ('title','author','domain','subject','keywords','notes',
1.222 matthew 3616: 'mimetag','language','creationdate','lastrevisiondate',
3617: 'owner','copyrighttag','hostname','abstract') {
3618: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3619: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3620: }
3621: if (&has_stat_data(\%values)) {
3622: foreach my $field (&statfields()) {
3623: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3624: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3625: }
3626: }
3627: if (&has_eval_data(\%values)) {
3628: foreach my $field (&evalfields()) {
3629: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3630: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3631: }
3632: }
3633: $result .= "</dl>\n";
3634: $result .= $values{'extrashow'};
3635: $result .= '<hr align="left" width="200" noshade />'."\n";
1.50 harris41 3636: return $result;
3637: }
3638:
1.122 matthew 3639: ######################################################################
3640: ######################################################################
3641:
3642: =pod
3643:
3644: =item &xml_sgml_view()
3645:
3646: =back
3647:
3648: =cut
3649:
3650: ######################################################################
3651: ######################################################################
1.50 harris41 3652: sub xml_sgml_view {
1.150 matthew 3653: my ($prefix,%values) = @_;
1.222 matthew 3654: my $xml = '<LonCapaResource>'."\n";
3655: # The usual suspects
1.239 matthew 3656: foreach my $field ('url','title','author','subject','keywords','notes','domain') {
1.222 matthew 3657: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3658: }
3659: #
3660: $xml .= "<mimeInfo>\n";
3661: foreach my $field ('mime','mimetag') {
3662: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3663: }
3664: $xml .= "</mimeInfo>\n";
3665: #
3666: $xml .= "<languageInfo>\n";
3667: foreach my $field ('language','languagetag') {
3668: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3669: }
3670: $xml .= "</languageInfo>\n";
3671: #
3672: foreach my $field ('creationdate','lastrevisiondate','owner') {
3673: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3674: }
3675: #
3676: $xml .= "<copyrightInfo>\n";
3677: foreach my $field ('copyright','copyrighttag') {
3678: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3679: }
3680: $xml .= "</copyrightInfo>\n";
3681: $xml .= qq{<repositoryLocation>$values{'hostname'}</repositoryLocation>}.
3682: "\n";
3683: $xml .= qq{<shortabstract>$values{'shortabstract'}</shortabstract>}."\n";
3684: #
3685: if (&has_stat_data(\%values)){
3686: $xml .= "<problemstatistics>\n";
3687: foreach my $field (&statfields()) {
3688: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3689: }
3690: $xml .= "</problemstatistics>\n";
3691: }
3692: #
3693: if (&has_eval_data(\%values)) {
3694: $xml .= "<evaluation>\n";
3695: foreach my $field (&evalfields) {
3696: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3697: }
3698: $xml .= "</evaluation>\n";
3699: }
3700: #
3701: $xml .= "</LonCapaResource>\n";
1.212 matthew 3702: $xml = &HTML::Entities::encode($xml,'<>&');
1.50 harris41 3703: my $result=<<END;
1.150 matthew 3704: $prefix
1.56 harris41 3705: <pre>
1.212 matthew 3706: $xml
1.56 harris41 3707: </pre>
1.126 matthew 3708: $values{'extrashow'}
1.150 matthew 3709: <hr align='left' width='200' noshade />
1.50 harris41 3710: END
3711: return $result;
1.60 harris41 3712: }
3713:
1.122 matthew 3714: ######################################################################
3715: ######################################################################
3716:
3717: =pod
3718:
3719: =item &filled() see if field is filled.
3720:
3721: =cut
3722:
3723: ######################################################################
3724: ######################################################################
1.98 harris41 3725: sub filled {
3726: my ($field)=@_;
3727: if ($field=~/\S/ && $field ne 'any') {
1.204 matthew 3728: return 1;
3729: } else {
3730: return 0;
1.61 harris41 3731: }
1.60 harris41 3732: }
3733:
1.122 matthew 3734: ######################################################################
3735: ######################################################################
3736:
3737: =pod
3738:
1.228 matthew 3739: =item &output_unparsed_phrase_error()
3740:
3741: =cut
3742:
3743: ######################################################################
3744: ######################################################################
3745: sub output_unparsed_phrase_error {
3746: my ($r,$closebutton,$parms,$hidden_fields,$field)=@_;
3747: my $errorstring;
3748: if ($field eq 'basicexp') {
1.243 albertel 3749: $errorstring = &mt('Unable to understand the search phrase <i>[_1]</i>. Please modify your search.',$env{'form.basicexp'});
1.228 matthew 3750: } else {
1.243 albertel 3751: $errorstring = &mt('Unable to understand the search phrase <b>[_1]</b>:<i>[_2]</i>.',$field,$env{'form.'.$field});
1.228 matthew 3752: }
3753: my $heading = &mt('Unparsed Field');
3754: my $revise = &mt('Revise search request');
3755: # make query information persistent to allow for subsequent revision
1.256 albertel 3756: my $start_page = &Apache::loncommon::start_page('Search');
3757: my $end_page = &Apache::loncommon::end_page();
1.228 matthew 3758: $r->print(<<ENDPAGE);
1.256 albertel 3759: $start_page
1.228 matthew 3760: <form method="post" action="/adm/searchcat">
3761: $hidden_fields
3762: $closebutton
3763: <hr />
3764: <h2>$heading</h2>
3765: <p>
3766: $errorstring
3767: </p>
3768: <p>
1.243 albertel 3769: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.228 matthew 3770: </p>
1.256 albertel 3771: $end_page
1.228 matthew 3772: ENDPAGE
3773: }
3774:
3775: ######################################################################
3776: ######################################################################
3777:
3778: =pod
3779:
1.122 matthew 3780: =item &output_blank_field_error()
3781:
1.151 matthew 3782: Output a complete page that indicates the user has not filled in enough
3783: information to do a search.
3784:
3785: Inputs: $r (Apache request handle), $closebutton, $parms.
3786:
3787: Returns: nothing
3788:
3789: $parms is extra information to include in the 'Revise search request' link.
3790:
1.122 matthew 3791: =cut
3792:
3793: ######################################################################
3794: ######################################################################
1.98 harris41 3795: sub output_blank_field_error {
1.196 matthew 3796: my ($r,$closebutton,$parms,$hidden_fields)=@_;
1.228 matthew 3797: my $errormsg = &mt('You did not fill in enough information for the search to be started. You need to fill in relevant fields on the search page in order for a query to be processed.');
3798: my $revise = &mt('Revise Search Request');
3799: my $heading = &mt('Unactionable Search Queary');
1.256 albertel 3800: my $start_page = &Apache::loncommon::start_page('Search');
3801: my $end_page = &Apache::loncommon::end_page();
1.228 matthew 3802: $r->print(<<ENDPAGE);
1.256 albertel 3803: $start_page
1.98 harris41 3804: <form method="post" action="/adm/searchcat">
1.145 matthew 3805: $hidden_fields
1.98 harris41 3806: $closebutton
3807: <hr />
1.228 matthew 3808: <h2>$heading</h2>
1.98 harris41 3809: <p>
1.228 matthew 3810: $errormsg
3811: </p>
3812: <p>
1.243 albertel 3813: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.98 harris41 3814: </p>
1.256 albertel 3815: $end_page
1.228 matthew 3816: ENDPAGE
3817: return;
1.98 harris41 3818: }
3819:
1.122 matthew 3820: ######################################################################
3821: ######################################################################
3822:
3823: =pod
3824:
3825: =item &output_date_error()
3826:
3827: Output a full html page with an error message.
3828:
1.145 matthew 3829: Inputs:
3830:
3831: $r, the request pointer.
3832: $message, the error message for the user.
3833: $closebutton, the specialized close button needed for groupsearch.
3834:
1.122 matthew 3835: =cut
3836:
3837: ######################################################################
3838: ######################################################################
1.60 harris41 3839: sub output_date_error {
1.196 matthew 3840: my ($r,$message,$closebutton,$hidden_fields)=@_;
1.60 harris41 3841: # make query information persistent to allow for subsequent revision
1.256 albertel 3842: my $start_page = &Apache::loncommon::start_page('Search');
3843: my $end_page = &Apache::loncommon::end_page();
1.122 matthew 3844: $r->print(<<RESULTS);
1.256 albertel 3845: $start_page
1.60 harris41 3846: <form method="post" action="/adm/searchcat">
1.145 matthew 3847: $hidden_fields
1.60 harris41 3848: <input type='button' value='Revise search request'
1.98 harris41 3849: onClick='this.form.submit();' />
1.60 harris41 3850: $closebutton
1.98 harris41 3851: <hr />
1.151 matthew 3852: <h3>Error</h3>
1.60 harris41 3853: <p>
3854: $message
3855: </p>
1.256 albertel 3856: $end_page
1.60 harris41 3857: RESULTS
1.101 harris41 3858: }
3859:
1.122 matthew 3860: ######################################################################
3861: ######################################################################
3862:
3863: =pod
3864:
3865: =item &start_fresh_session()
3866:
1.142 matthew 3867: Cleans the global %groupsearch_db by removing all fields which begin with
1.122 matthew 3868: 'pre_' or 'store'.
3869:
3870: =cut
3871:
3872: ######################################################################
3873: ######################################################################
1.101 harris41 3874: sub start_fresh_session {
1.142 matthew 3875: delete $groupsearch_db{'mode_catalog'};
3876: foreach (keys %groupsearch_db) {
1.101 harris41 3877: if ($_ =~ /^pre_/) {
1.142 matthew 3878: delete $groupsearch_db{$_};
1.101 harris41 3879: }
3880: if ($_ =~ /^store/) {
1.142 matthew 3881: delete $groupsearch_db{$_};
1.101 harris41 3882: }
1.109 harris41 3883: }
1.3 harris41 3884: }
1.1 www 3885:
3886: 1;
1.162 www 3887:
3888: sub cleanup {
1.163 www 3889: if (tied(%groupsearch_db)) {
3890: unless (untie(%groupsearch_db)) {
3891: &Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db');
3892: }
3893: }
1.167 www 3894: &untiehash();
1.162 www 3895: &Apache::lonmysql::disconnect_from_db();
1.252 albertel 3896: return OK;
1.162 www 3897: }
1.98 harris41 3898:
1.1 www 3899: __END__
1.105 harris41 3900:
1.121 matthew 3901: =pod
1.105 harris41 3902:
1.121 matthew 3903: =back
1.105 harris41 3904:
3905: =cut
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