Annotation of loncom/interface/lonsearchcat.pm, revision 1.337
1.98 harris41 1: # The LearningOnline Network with CAPA
1.108 harris41 2: # Search Catalog
3: #
1.337 ! raeburn 4: # $Id: lonsearchcat.pm,v 1.336 2013/09/01 22:39:39 raeburn 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();
1.328 wenzelju 81: use Apache::lonwishlist();
1.265 www 82: use LONCAPA;
1.1 www 83:
1.121 matthew 84: ######################################################################
85: ######################################################################
1.196 matthew 86: ##
87: ## Global variables
88: ##
1.121 matthew 89: ######################################################################
90: ######################################################################
1.196 matthew 91: my %groupsearch_db; # Database hash used to save values for the
92: # groupsearch RAT interface.
93: my %persistent_db; # gdbm hash which holds data which is supposed to
94: # persist across calls to lonsearchcat.pm
1.121 matthew 95:
1.200 www 96: # The different view modes and associated functions
97:
98: my %Views = ("detailed" => \&detailed_citation_view,
1.255 www 99: "detailedpreview" => \&detailed_citation_preview,
1.200 www 100: "summary" => \&summary_view,
1.255 www 101: "summarypreview" => \&summary_preview,
1.200 www 102: "fielded" => \&fielded_format_view,
103: "xml" => \&xml_sgml_view,
104: "compact" => \&compact_view);
1.101 harris41 105:
1.121 matthew 106: ######################################################################
107: ######################################################################
1.98 harris41 108: sub handler {
109: my $r = shift;
1.197 www 110: # &set_defaults();
1.196 matthew 111: #
112: # set form defaults
1.145 matthew 113: #
1.196 matthew 114: my $hidden_fields;# Hold all the hidden fields used to keep track
115: # of the search system state
116: my $importbutton; # button to take the selected results and go to group
117: # sorting
118: my $diropendb; # The full path to the (temporary) search database file.
119: # This is set and used in &handler() and is also used in
120: # &output_results().
1.157 www 121:
1.221 matthew 122: #
1.145 matthew 123: my $closebutton; # button that closes the search window
124: # This button is different for the RAT compared to
125: # normal invocation.
126: #
1.186 www 127: &Apache::loncommon::content_type($r,'text/html');
1.98 harris41 128: $r->send_http_header;
129: return OK if $r->header_only;
1.156 matthew 130: ##
131: ## Prevent caching of the search interface window. Hopefully this means
132: ## we will get the launch=1 passed in a little more.
133: &Apache::loncommon::no_cache($r);
1.145 matthew 134: ##
135: ## Pick up form fields passed in the links.
136: ##
137: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.146 matthew 138: ['catalogmode','launch','acts','mode','form','element','pause',
1.158 matthew 139: 'phase','persistent_db_id','table','start','show',
1.288 albertel 140: 'cleargroupsort','titleelement','area','inhibitmenu']);
1.146 matthew 141: ##
142: ## The following is a trick - we wait a few seconds if asked to so
143: ## the daemon running the search can get ahead of the daemon
144: ## printing the results. We only need (theoretically) to do
145: ## this once, so the pause indicator is deleted
146: ##
1.243 albertel 147: if (exists($env{'form.pause'})) {
1.181 matthew 148: sleep(1);
1.243 albertel 149: delete($env{'form.pause'});
1.146 matthew 150: }
1.143 matthew 151: ##
152: ## Initialize global variables
153: ##
1.121 matthew 154: my $domain = $r->dir_config('lonDefDomain');
1.330 foxr 155: my $temp_file_dir = LONCAPA::tempdir();
156: $diropendb= $temp_file_dir .
1.266 www 157: "$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:
1.330 foxr 167: my $persistent_db_file = $temp_file_dir .
1.265 www 168: &escape($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: }
178: my $crumb_text = 'Portfolio Search';
1.327 www 179: if (@allowed_searches ==2) {
180: $crumb_text = 'Portfolio and Catalog Search';
1.277 raeburn 181: }
182: &Apache::lonhtmlcommon::add_breadcrumb
183: ({href=>'/adm/searchcat?'.
1.288 albertel 184: &Apache::loncommon::inhibit_menu_check().
1.309 bisitz 185: '&catalogmode='.$env{'form.catalogmode'}.
186: '&launch='.$env{'form.launch'}.
187: '&mode='.$env{'form.mode'},
1.277 raeburn 188: text=>"$crumb_text",
1.227 matthew 189: target=>'_top',
1.209 matthew 190: bug=>'Searching',});
191: #
1.243 albertel 192: if ($env{'form.phase'} !~ m/(basic|adv|course)_search/) {
1.221 matthew 193: if (! &get_persistent_form_data($persistent_db_file)) {
1.243 albertel 194: if ($env{'form.phase'} =~ /(run_search|results)/) {
1.221 matthew 195: &Apache::lonnet::logthis('lonsearchcat:'.
196: 'Unable to recover data from '.
197: $persistent_db_file);
1.256 albertel 198: my $msg =
199: 'We were unable to retrieve data describing your search. '.
200: 'This is a serious error and has been logged. '.
201: 'Please alert your LON-CAPA administrator.';
1.261 albertel 202: &Apache::loncommon::simple_error_page($r,'Search Error',
203: $msg);
204: return OK;
1.221 matthew 205: }
1.150 matthew 206: }
1.221 matthew 207: } else {
208: &clean_up_environment();
1.147 matthew 209: }
1.124 matthew 210: ##
1.143 matthew 211: ## Clear out old values from groupsearch database
1.124 matthew 212: ##
1.146 matthew 213: untie %groupsearch_db if (tied(%groupsearch_db));
1.243 albertel 214: if (($env{'form.cleargroupsort'} eq '1') ||
215: (($env{'form.launch'} eq '1') &&
1.267 www 216: ($env{'form.catalogmode'} eq 'import'))) {
1.148 matthew 217: if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.101 harris41 218: &start_fresh_session();
1.142 matthew 219: untie %groupsearch_db;
1.243 albertel 220: delete($env{'form.cleargroupsort'});
1.122 matthew 221: } else {
1.155 matthew 222: # This is a stupid error to give to the user.
223: # It really tells them nothing.
1.256 albertel 224: my $msg = 'Unable to tie hash to db file.';
1.261 albertel 225: &Apache::loncommon::simple_error_page($r,'Search Error',
226: $msg);
227: return OK;
1.101 harris41 228: }
229: }
1.124 matthew 230: ##
1.150 matthew 231: ## Configure hidden fields
1.124 matthew 232: ##
1.145 matthew 233: $hidden_fields = '<input type="hidden" name="persistent_db_id" value="'.
1.243 albertel 234: $env{'form.persistent_db_id'}.'" />'."\n";
235: if (exists($env{'form.catalogmode'})) {
1.223 matthew 236: $hidden_fields .= &hidden_field('catalogmode');
1.150 matthew 237: }
1.243 albertel 238: if (exists($env{'form.form'})) {
1.223 matthew 239: $hidden_fields .= &hidden_field('form');
1.150 matthew 240: }
1.243 albertel 241: if (exists($env{'form.element'})) {
1.223 matthew 242: $hidden_fields .= &hidden_field('element');
1.150 matthew 243: }
1.243 albertel 244: if (exists($env{'form.titleelement'})) {
1.223 matthew 245: $hidden_fields .= &hidden_field('titleelement');
1.191 albertel 246: }
1.243 albertel 247: if (exists($env{'form.mode'})) {
1.223 matthew 248: $hidden_fields .= &hidden_field('mode');
1.150 matthew 249: }
1.276 raeburn 250: if (exists($env{'form.area'})) {
251: $hidden_fields .= &hidden_field('area');
252: }
1.288 albertel 253: if (exists($env{'form.inhibitmenu'})) {
254: $hidden_fields .= &hidden_field('inhibitmenu');
255: }
1.150 matthew 256: ##
257: ## Configure dynamic components of interface
1.146 matthew 258: ##
1.243 albertel 259: if ($env{'form.catalogmode'} eq 'interactive') {
1.313 bisitz 260: $closebutton="<input type='button' name='close' value='".&mt('Close')."' ";
1.243 albertel 261: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.315 bisitz 262: $closebutton .="onclick='parent.close()'";
1.150 matthew 263: } else {
1.313 bisitz 264: $closebutton .="onclick='self.close()'";
1.150 matthew 265: }
1.315 bisitz 266: $closebutton .=" />\n";
1.267 www 267: } elsif ($env{'form.catalogmode'} eq 'import') {
1.313 bisitz 268: $closebutton="<input type='button' name='close' value='".&mt('Close')."' ";
1.243 albertel 269: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.315 bisitz 270: $closebutton .="onclick='parent.close()'";
1.150 matthew 271: } else {
1.313 bisitz 272: $closebutton .="onclick='self.close()'";
1.150 matthew 273: }
1.315 bisitz 274: $closebutton .= " />";
1.297 bisitz 275: my $txt_import = &mt('IMPORT');
1.98 harris41 276: $importbutton=<<END;
1.297 bisitz 277: <input type='button' name='import' value='$txt_import'
1.315 bisitz 278: onclick='javascript:select_group()' />
1.98 harris41 279: END
1.146 matthew 280: } else {
281: $closebutton = '';
282: $importbutton = '';
1.98 harris41 283: }
1.124 matthew 284: ##
1.146 matthew 285: ## Sanity checks on form elements
1.124 matthew 286: ##
1.243 albertel 287: if (!defined($env{'form.viewselect'})) {
1.248 www 288: $env{'form.viewselect'} ="summary";
1.146 matthew 289: }
1.243 albertel 290: $env{'form.phase'} = 'disp_basic' if (! exists($env{'form.phase'}));
291: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
1.209 matthew 292: #
1.243 albertel 293: $env{'form.searchmode'} = 'basic' if (! exists($env{'form.searchmode'}));
294: if ($env{'form.phase'} eq 'adv_search' ||
295: $env{'form.phase'} eq 'disp_adv') {
296: $env{'form.searchmode'} = 'advanced';
1.209 matthew 297: }
298: #
1.243 albertel 299: if ($env{'form.searchmode'} eq 'advanced') {
1.277 raeburn 300: my $srchtype = 'Catalog';
301: if ($env{'form.area'} eq 'portfolio') {
302: $srchtype = 'Portfolio';
303: }
1.209 matthew 304: &Apache::lonhtmlcommon::add_breadcrumb
1.288 albertel 305: ({href=>'/adm/searchcat?'.&Apache::loncommon::inhibit_menu_check().
1.309 bisitz 306: '&phase=disp_adv'.
307: '&catalogmode='.$env{'form.catalogmode'}.
308: '&launch='.$env{'form.launch'}.
309: '&mode='.$env{'form.mode'},
1.277 raeburn 310: text=>"Advanced $srchtype Search",
1.209 matthew 311: bug=>'Searching',});
1.327 www 312: }
1.146 matthew 313: ##
314: ## Switch on the phase
315: ##
1.243 albertel 316: if ($env{'form.phase'} eq 'disp_basic') {
1.196 matthew 317: &print_basic_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 318: } elsif ($env{'form.phase'} eq 'disp_adv') {
1.196 matthew 319: &print_advanced_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 320: } elsif ($env{'form.phase'} eq 'results') {
1.276 raeburn 321: &display_results($r,$importbutton,$closebutton,$diropendb,
322: $env{'form.area'});
1.243 albertel 323: } elsif ($env{'form.phase'} =~ /^(sort|run_search)$/) {
1.336 raeburn 324: my ($query,$customquery,$customshow,$libraries,$pretty_string,$domainsref) =
1.146 matthew 325: &get_persistent_data($persistent_db_file,
326: ['query','customquery','customshow',
1.336 raeburn 327: 'libraries','pretty_string','domains']);
1.243 albertel 328: if ($env{'form.phase'} eq 'sort') {
1.151 matthew 329: &print_sort_form($r,$pretty_string);
1.243 albertel 330: } elsif ($env{'form.phase'} eq 'run_search') {
1.151 matthew 331: &run_search($r,$query,$customquery,$customshow,
1.336 raeburn 332: $libraries,$pretty_string,$env{'form.area'},$domainsref);
1.151 matthew 333: }
1.243 albertel 334: } elsif(($env{'form.phase'} eq 'basic_search') ||
335: ($env{'form.phase'} eq 'adv_search')) {
1.228 matthew 336: #
337: # We are running a search, try to parse it
1.336 raeburn 338: my ($query,$customquery,$customshow,$libraries,$domains) =
339: (undef,undef,undef,undef,undef);
1.228 matthew 340: my $pretty_string;
1.243 albertel 341: if ($env{'form.phase'} eq 'basic_search') {
1.336 raeburn 342: ($query,$pretty_string,$libraries,$domains) =
1.228 matthew 343: &parse_basic_search($r,$closebutton,$hidden_fields);
344: return OK if (! defined($query));
1.243 albertel 345: &make_persistent({ basicexp => $env{'form.basicexp'}},
1.228 matthew 346: $persistent_db_file);
347: } else { # Advanced search
1.336 raeburn 348: ($query,$customquery,$customshow,$libraries,$pretty_string,$domains)
1.228 matthew 349: = &parse_advanced_search($r,$closebutton,$hidden_fields);
350: return OK if (! defined($query));
351: }
352: &make_persistent({ query => $query,
353: customquery => $customquery,
354: customshow => $customshow,
355: libraries => $libraries,
1.336 raeburn 356: pretty_string => $pretty_string,
357: domains => $domains },
1.228 matthew 358: $persistent_db_file);
359: #
1.146 matthew 360: # Set up table
1.276 raeburn 361: if (! defined(&create_results_table($env{'form.area'}))) {
1.198 www 362: my $errorstring=&Apache::lonmysql::get_error();
1.211 matthew 363: &Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
364: 'needed table. lonmysql error:'.
365: $errorstring);
1.256 albertel 366:
367: my $msg =
1.286 albertel 368: 'Unable to create table in which to save search results. '.
1.256 albertel 369: 'The search has been aborted.';
1.261 albertel 370: &Apache::loncommon::simple_error_page($r,'Search Error',
371: $msg);
372: return OK;
1.146 matthew 373: }
1.243 albertel 374: delete($env{'form.launch'});
1.146 matthew 375: if (! &make_form_data_persistent($r,$persistent_db_file)) {
1.256 albertel 376: my $msg=
1.286 albertel 377: 'Unable to properly save search information. '.
1.256 albertel 378: 'The search has been aborted.';
1.261 albertel 379: &Apache::loncommon::simple_error_page($r,'Search Error',
380: $msg);
381: return OK;
1.256 albertel 382: }
1.145 matthew 383: ##
1.146 matthew 384: ## Print out the frames interface
1.145 matthew 385: ##
1.228 matthew 386: if (defined($query)) {
387: &print_frames_interface($r);
388: }
1.124 matthew 389: }
390: return OK;
391: }
1.98 harris41 392:
1.221 matthew 393: #
394: # The mechanism used to store values away and retrieve them does not
395: # handle the case of missing environment variables being significant.
396: #
397: # This routine sets non existant checkbox form elements to ''.
398: #
399: sub clean_up_environment {
1.243 albertel 400: if ($env{'form.phase'} eq 'basic_search') {
401: if (! exists($env{'form.related'})) {
402: $env{'form.related'} = '';
1.221 matthew 403: }
1.243 albertel 404: if (! exists($env{'form.domains'})) {
405: $env{'form.domains'} = '';
1.221 matthew 406: }
1.243 albertel 407: } elsif ($env{'form.phase'} eq 'adv_search') {
1.221 matthew 408: foreach my $field ('title','keywords','notes',
409: 'abstract','standards','mime') {
1.243 albertel 410: if (! exists($env{'form.'.$field.'_related'})) {
411: $env{'form.'.$field.'_related'} = '';
1.221 matthew 412: }
413: }
1.243 albertel 414: } elsif ($env{'form.phase'} eq 'course_search') {
415: if (! exists($env{'form.crsrelated'})) {
416: $env{'form.crsrelated'} = '';
1.221 matthew 417: }
418: }
419: }
420:
1.223 matthew 421: sub hidden_field {
422: my ($name,$value) = @_;
423: if (! defined($value)) {
1.243 albertel 424: $value = $env{'form.'.$name};
1.223 matthew 425: }
426: return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/;
427: }
428:
1.124 matthew 429: ######################################################################
1.167 www 430:
1.124 matthew 431: =pod
432:
1.146 matthew 433: =item &print_basic_search_form()
1.124 matthew 434:
1.204 matthew 435: Prints the form for the basic search. Sorry the name is so cryptic.
1.124 matthew 436:
437: =cut
438:
439: ######################################################################
440: ######################################################################
1.204 matthew 441: sub print_basic_search_form {
1.196 matthew 442: my ($r,$closebutton,$hidden_fields) = @_;
1.267 www 443: my $result = ($env{'form.catalogmode'} ne 'import');
1.256 albertel 444: my $bread_crumb =
1.263 albertel 445: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Basic',
1.267 www 446: $env{'form.catalogmode'} ne 'import');
1.305 schafran 447: my $scrout = &Apache::loncommon::start_page('Content Library').$bread_crumb;
1.276 raeburn 448: # Search form for resource space
1.243 albertel 449: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
1.276 raeburn 450: $scrout .= &setup_basic_search($r,'res',$hidden_fields,$closebutton);
451: $scrout .= '<hr /><br />';
1.180 matthew 452: }
1.276 raeburn 453: # Search form for accessible portfolio files
454: $scrout.= &setup_basic_search($r,'portfolio',$hidden_fields,$closebutton);
1.256 albertel 455: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 456: $r->print($scrout);
457: return;
1.124 matthew 458: }
1.276 raeburn 459:
460: sub setup_basic_search {
461: my ($r,$area,$hidden_fields,$closebutton) = @_;
462: # Define interface components
463: my %lt = &Apache::lonlocal::texthash (
464: res => 'LON-CAPA Catalog Search',
465: portfolio => 'Portfolio Search',
466: );
467: my ($userelatedwords,$onlysearchdomain,$inclext,$adv_search_link,$scrout);
1.318 bisitz 468:
469: $userelatedwords = '<label>'
470: .&Apache::lonhtmlcommon::checkbox(
471: 'related',
472: $env{'form.related'},
473: 'related')
474: .' '
475: .&mt('use related words')
476: .'</label>';
477:
478: $onlysearchdomain = '<label>'
479: .&Apache::lonhtmlcommon::checkbox(
480: 'domains',
481: $env{'form.domains'},
482: $r->dir_config('lonDefDomain'))
483: .' '
484: .&mt('only search domain [_1]'
485: ,'<b>'.$r->dir_config('lonDefDomain').'</b>')
486: .'</label>';
487:
1.276 raeburn 488: $adv_search_link = '<a href="/adm/searchcat?'.
1.288 albertel 489: &Apache::loncommon::inhibit_menu_check().
1.309 bisitz 490: '&phase=disp_adv'.
491: '&catalogmode='.$env{'form.catalogmode'}.
492: '&launch='.$env{'form.launch'}.
493: '&mode='.$env{'form.mode'}.
494: '&area='.$area.
495: '&form='.$env{'form.form'}.
496: '&titleelement='.$env{'form.titleelement'}.
497: '&element='.$env{'form.element'}.
1.276 raeburn 498: '">'.&mt('Advanced Search').'</a>';
499: #
500: $scrout.='<form name="loncapa_search" method="post" '.
501: 'action="/adm/searchcat">'.
502: '<input type="hidden" name="phase" value="basic_search" />'.
503: $hidden_fields;
504: if (!exists($env{'form.area'})) {
505: $scrout .= '<input type="hidden" name="area" value="'.$area.'" />';
506: }
507: #
1.313 bisitz 508: $scrout .= '<div align="center">'.$/;
1.276 raeburn 509: # if ($env{'request.course.id'}) {
510: $scrout .= '<h1>'.$lt{$area}.'</h1>';
511: # } else {
512: # No need to tell them they are searching
513: # $scrout.= ('<br />'x2);
514: # }
515: $scrout.='<table>'.
516: '<tr><td align="center" valign="top">'.
517: &Apache::lonhtmlcommon::textbox('basicexp',
518: $env{'form.basicexp'},50).
519: '<br />'.
1.313 bisitz 520: '<span class="LC_fontsize_small">'.&searchhelp().'</span>'.'</td>'.
521: '<td>'.
1.301 bisitz 522: '<span class="LC_nobreak">'.(' 'x3).$adv_search_link.'</span>'.'<br />'.
523: '<span class="LC_nobreak">'.(' 'x1).$userelatedwords.'</span>'.'<br />'.
524: '<span class="LC_nobreak">'.(' 'x1).$onlysearchdomain.'</span>'.'<br />'.
525: '<span class="LC_nobreak">'.(' 'x1).$inclext.'</span>'.'<br />'.
1.313 bisitz 526: '</td>'.
527: '</tr>'.
528: '</table>'.$/;
529: #
530: $scrout .= '<p>'
531: .&viewoptions()
532: .'</p>'
533: .'<p>'
534: .'<input type="submit" name="basicsubmit" '
535: .'value="'.&mt('Search').'" />'
536: .' '
537: .$closebutton
538: .'</p>';
1.276 raeburn 539: #
1.313 bisitz 540: $scrout .= '</div>'.'</form>';
1.276 raeburn 541: return $scrout;
542: }
543:
1.124 matthew 544: ######################################################################
545: ######################################################################
546:
547: =pod
548:
549: =item &advanced_search_form()
550:
1.204 matthew 551: Prints the advanced search form.
1.124 matthew 552:
553: =cut
554:
555: ######################################################################
556: ######################################################################
1.146 matthew 557: sub print_advanced_search_form{
1.196 matthew 558: my ($r,$closebutton,$hidden_fields) = @_;
1.256 albertel 559: my $bread_crumb =
1.263 albertel 560: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Advanced',
1.267 www 561: $env{'form.catalogmode'} ne 'import');
1.200 www 562: my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
563: 'reset' => 'Reset',
564: 'help' => 'Help');
1.217 matthew 565: my $advanced_buttons=<<"END";
1.314 bisitz 566: <p>
1.200 www 567: <input type="submit" name="advancedsubmit" value='$lt{"srch"}' />
568: <input type="reset" name="reset" value='$lt{"reset"}' />
1.129 matthew 569: $closebutton
1.314 bisitz 570: </p>
1.129 matthew 571: END
1.277 raeburn 572: my $srchtype = 'Catalog';
1.279 raeburn 573: my $jscript;
1.277 raeburn 574: if ($env{'form.area'} eq 'portfolio') {
575: $srchtype = 'Portfolio';
1.279 raeburn 576: $jscript = '<script type="text/javascript">
1.313 bisitz 577: // <![CDATA[
1.279 raeburn 578: function additional_metadata() {
579: if (document.advsearch.newfield.checked) {
580: document.advsearch.phase.value = "disp_adv";
581: document.advsearch.numaddedfields.value = parseInt(document.advsearch.numaddedfields.value) +1;
582: document.advsearch.submit();
1.277 raeburn 583: }
1.279 raeburn 584: }
1.313 bisitz 585: // ]]>
1.279 raeburn 586: </script>';
587: }
588: my $scrout= &Apache::loncommon::start_page("Advanced $srchtype Search",
589: $jscript);
1.314 bisitz 590: $scrout .= $bread_crumb;
591:
592: $scrout .= '<form method="post" action="/adm/searchcat" name="advsearch">'
593: .$hidden_fields
594: .'<input type="hidden" name="phase" value="adv_search" />';
595:
596: $scrout .= '<fieldset>'."\n"
597: .'<legend>'.&mt('Display Options').'</legend>'."\n"
598: .&viewoptions()
599: .'</fieldset>';
600:
601: $scrout .= $advanced_buttons;
602:
603: $scrout .= &Apache::lonhtmlcommon::start_pick_box();
604:
1.200 www 605: my %fields=&Apache::lonmeta::fieldnames();
1.314 bisitz 606:
607: # Standard Metadata
608: $scrout .= &Apache::lonhtmlcommon::row_headline()
609: .'<h3>'.&mt("Standard $srchtype Metadata").'</h3>'
610: .&searchhelp()
611: .&Apache::lonhtmlcommon::row_closure();
1.208 matthew 612: my %related_word_search =
1.217 matthew 613: ('title' => 1,
614: 'author' => 0,
615: 'owner' => 0,
616: 'authorspace' => 0,
617: 'modifyinguser'=> 0,
618: 'keywords' => 1,
619: 'notes' => 1,
620: 'abstract' => 1,
621: 'standards'=> 1,
622: 'mime' => 1,
1.314 bisitz 623: 'subject' => 1,
1.208 matthew 624: );
1.209 matthew 625: #
1.246 albertel 626: foreach my $field ('title','author','subject','owner','authorspace',
1.314 bisitz 627: 'modifyinguser','keywords','notes','abstract',
628: 'standards','mime') {
629: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield($fields{$field}))
630: .&Apache::lonmeta::prettyinput($field,
1.243 albertel 631: $env{'form.'.$field},
1.208 matthew 632: $field,
633: 'advsearch',
1.314 bisitz 634: $related_word_search{$field},
635: '',
1.243 albertel 636: $env{'form.'.$field.'_related'},
1.208 matthew 637: 50);
638: if ($related_word_search{$field}) {
1.289 bisitz 639: $scrout .= &mt('related words');
1.208 matthew 640: } else {
1.314 bisitz 641: $scrout .= '';
1.208 matthew 642: }
1.314 bisitz 643: $scrout .= &Apache::lonhtmlcommon::row_closure();
1.208 matthew 644: }
645: foreach my $field ('lowestgradelevel','highestgradelevel') {
1.314 bisitz 646: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield($fields{$field}))
647: .&Apache::lonmeta::prettyinput($field,
1.243 albertel 648: $env{'form.'.$field},
1.208 matthew 649: $field,
650: 'advsearch',
1.314 bisitz 651: 0)
652: .&Apache::lonhtmlcommon::row_closure();
1.200 www 653: }
1.314 bisitz 654:
655: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('MIME Type Category')))
656: .&Apache::loncommon::filecategoryselect('category',
657: $env{'form.category'})
658: .&Apache::lonhtmlcommon::row_closure();
659:
660: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Domains')))
661: .&Apache::loncommon::domain_select('domains',
662: $env{'form.domains'},1)
663: .&Apache::lonhtmlcommon::row_closure();
664:
1.217 matthew 665: # Misc metadata
1.276 raeburn 666: if ($env{'form.area'} ne 'portfolio') {
1.314 bisitz 667: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Copyright/Distribution')))
668: .&Apache::lonmeta::selectbox('copyright',
1.276 raeburn 669: $env{'form.copyright'},
670: \&Apache::loncommon::copyrightdescription,
671: ( undef,
672: &Apache::loncommon::copyrightids)
1.314 bisitz 673: )
674: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 675: }
1.314 bisitz 676:
677: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Language')))
678: .&Apache::lonmeta::selectbox('language',
1.243 albertel 679: $env{'form.language'},
1.217 matthew 680: \&Apache::loncommon::languagedescription,
681: ('any',&Apache::loncommon::languageids)
1.314 bisitz 682: )
683: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 684:
1.314 bisitz 685: # Portfolio Metadata
1.276 raeburn 686: if ($env{'form.area'} eq 'portfolio') {
687: # Added fields
1.279 raeburn 688: my $curnumadd = $env{'form.numaddedfields'};
689: if ($curnumadd eq '') {
690: $curnumadd = 1;
691: }
1.314 bisitz 692: $scrout .= &Apache::lonhtmlcommon::row_headline()
693: .'<h3>'.&mt('Custom Metadata fields').'</h3>'
694: .&Apache::lonhtmlcommon::row_closure()
695: .&Apache::lonhtmlcommon::row_title('')
696: .&mt('Field Name').' | '.&mt('Field Value(s)')
697: .&Apache::lonhtmlcommon::row_closure();
1.279 raeburn 698:
699: for (my $j=0; $j<$curnumadd; $j++) {
1.276 raeburn 700: my $num = $j+1;
1.314 bisitz 701: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Custom metadata [_1]',$num))
702: .'<input type="text"'
703: .' name="addedfield_'.$j.'" size="10"'
704: .' value="'.$env{'form.addedfield_'.$j}.'" />'
705: .' '
706: .'<input type="text" '
707: .'name="addedvalues_'.$j.'" size="15"'
708: .' value="'.$env{'form.addedvalues_'.$j}.'" />'
709: .&Apache::lonhtmlcommon::row_closure();
710: }
711: $scrout .= &Apache::lonhtmlcommon::row_title('')
712: .'<label>'
713: .'<input type="checkbox" name="newfield"'
714: .' value="1" onclick="javascript:additional_metadata()" />'
715: .&mt('Another custom field/value pair?').'</label>'
716: .'<input type="hidden" name="numaddedfields"'
717: .' value="'.$curnumadd.'" />'
718: .&Apache::lonhtmlcommon::row_closure();
719: } else {
1.276 raeburn 720: #
721: # Dynamic metadata
1.314 bisitz 722: $scrout .= &Apache::lonhtmlcommon::row_headline()
723: .'<h3>'.&mt('Problem Statistics').'</h3>'
724: .&Apache::lonhtmlcommon::row_closure();
725: $scrout .= &Apache::lonhtmlcommon::row_title('')
726: .&mt('Minimum').' | '.&mt('Maximum')
727: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 728: foreach my $statistic
729: ({ name=>'count',
730: description=>'Network-wide number of accesses (hits)',},
731: { name=>'stdno',
732: description=>
1.285 www 733: 'Statistics calculated for number of students',},
1.276 raeburn 734: { name => 'avetries',
735: description=>'Average number of tries till solved',},
736: { name => 'difficulty',
737: description=>'Degree of difficulty',},
738: { name => 'disc',
739: description=>'Degree of discrimination'}) {
1.314 bisitz 740: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt($statistic->{'description'})))
741: .'<input type="text" name="'.$statistic->{'name'}
742: .'_min" value="" size="6" />'
743: .' '
744: .'<input type="text" name="'.$statistic->{'name'}
745: .'_max" value="" size="6" />'
746: .&Apache::lonhtmlcommon::row_closure();
747: }
748:
749: $scrout .= &Apache::lonhtmlcommon::row_headline()
750: .'<h3>'.&mt('Evaluation Data').'</h3>'
751: .&Apache::lonhtmlcommon::row_closure();
752: $scrout .= &Apache::lonhtmlcommon::row_title('')
753: .&mt('Minimum').' | '.&mt('Maximum')
754: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 755: foreach my $evaluation
756: ( { name => 'clear',
757: description => 'Material presented in clear way'},
758: { name =>'depth',
759: description => 'Material covered with sufficient depth'},
760: { name => 'helpful',
761: description => 'Material is helpful'},
762: { name => 'correct',
763: description => 'Material appears to be correct'},
764: { name => 'technical',
765: description => 'Resource is technically correct'}){
1.314 bisitz 766: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt($evaluation->{'description'})))
767: .'<input type="text" name="'
768: .$evaluation->{'name'}.'_min" value="" size="6" />'
769: .' '
770: .'<input type="text" name="'
771: .$evaluation->{'name'}.'_max" value="" size="6" />'
772: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 773: }
1.217 matthew 774: }
1.216 matthew 775: #
776: # Creation/Modification date limits
1.314 bisitz 777: $scrout .= &Apache::lonhtmlcommon::row_headline()
778: .'<h3>'.&mt('Creation and Modification dates').'</h3>'
779: .&Apache::lonhtmlcommon::row_closure();
780: $scrout .= &Apache::lonhtmlcommon::row_title('')
781: .&mt('Month[_1]Day[_2]Year',' 'x14,' 'x6)
782: .&Apache::lonhtmlcommon::row_closure();
783:
1.216 matthew 784: my $cafter =
785: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
786: 'creationdate1', # fieldname
787: 0, # current value
788: '', # special
789: 1, # includeempty
790: '', # state
791: 1, # no_hh_mm_ss
792: );
793: my $cbefore =
794: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
795: 'creationdate2', # fieldname
796: 0, # current value
797: '', # special
798: 1, # includeempty
799: '', # state
800: 1, # no_hh_mm_ss
801: );
1.314 bisitz 802: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Created between'))
803: .$cafter
804: .&Apache::lonhtmlcommon::row_closure(1)
805: .&Apache::lonhtmlcommon::row_title(&mt('and'))
806: .$cbefore
807: .&Apache::lonhtmlcommon::row_closure();
808:
1.216 matthew 809: my $lafter =
810: &Apache::lonhtmlcommon::date_setter('advsearch',
811: 'revisiondate1',
812: 0, # current value
813: '', # special
814: 1, # includeempty
815: '', # state
816: 1, # no_hh_mm_ss
817: );
818: my $lbefore =
819: &Apache::lonhtmlcommon::date_setter('advsearch',
820: 'revisiondate2',
821: 0, # current value
822: '', # special
823: 1, # includeempty
824: '', # state
825: 1, # no_hh_mm_ss
826: );
1.314 bisitz 827: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Last modified between'))
828: .$lafter
829: .&Apache::lonhtmlcommon::row_closure(1)
830: .&Apache::lonhtmlcommon::row_title(&mt('and'))
831: .$lbefore
832: .&Apache::lonhtmlcommon::row_closure(1); # Last row of total pick_box
833:
834: $scrout .= &Apache::lonhtmlcommon::end_pick_box();
835:
836: $scrout .= $advanced_buttons
837: .'</form>';
838:
1.256 albertel 839: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 840: $r->print($scrout);
841: return;
1.124 matthew 842: }
1.204 matthew 843:
1.200 www 844: ######################################################################
845: ######################################################################
846:
847: =pod
848:
1.204 matthew 849: =item &titlefield()
1.200 www 850:
851: Inputs: title text
852:
853: Outputs: titletext with font wrapper
854:
855: =cut
856:
857: ######################################################################
858: ######################################################################
859: sub titlefield {
860: my $title=shift;
1.208 matthew 861: return $title;
1.200 www 862: }
1.204 matthew 863:
1.200 www 864: ######################################################################
865: ######################################################################
866:
867: =pod
868:
1.204 matthew 869: =item viewoptiontext()
1.200 www 870:
871: Inputs: codename for view option
872:
873: Outputs: displayed text
874:
875: =cut
876:
877: ######################################################################
878: ######################################################################
879: sub viewoptiontext {
880: my $code=shift;
1.204 matthew 881: my %desc=&Apache::lonlocal::texthash
882: ('detailed' => "Detailed Citation View",
883: 'xml' => 'XML/SGML',
884: 'compact' => 'Compact View',
885: 'fielded' => 'Fielded Format',
1.255 www 886: 'summary' => 'Summary View',
887: 'summarypreview' => 'Summary Preview',
888: 'detailedpreview' => 'Detailed Citation Preview');
1.200 www 889: return $desc{$code};
890: }
1.204 matthew 891:
892: ######################################################################
1.200 www 893: ######################################################################
894:
895: =pod
896:
1.204 matthew 897: =item viewoptions()
1.200 www 898:
899: Inputs: none
900:
901: Outputs: text for box with view options
902:
903: =cut
904:
905: ######################################################################
906: ######################################################################
907: sub viewoptions {
1.313 bisitz 908: my $scrout;
1.243 albertel 909: if (! defined($env{'form.viewselect'})) {
910: $env{'form.viewselect'}='detailed';
1.208 matthew 911: }
1.313 bisitz 912: $scrout .= '<span class="LC_nobreak">'
913: .&mt('Type:').' '
914: .&Apache::lonmeta::selectbox('viewselect',
915: $env{'form.viewselect'},
916: \&viewoptiontext,
917: sort(keys(%Views)))
918: .'</span>';
1.214 matthew 919: my $countselect = &Apache::lonmeta::selectbox('show',
1.243 albertel 920: $env{'form.show'},
1.214 matthew 921: undef,
922: (10,20,50,100,1000,10000));
1.313 bisitz 923: $scrout .= ' <span class="LC_nobreak">'
924: .&mt('Records per Page:').' '.$countselect
1.301 bisitz 925: .'</span>'.$/;
1.200 www 926: return $scrout;
1.201 www 927: }
928:
929: ######################################################################
1.204 matthew 930: ######################################################################
1.201 www 931:
932: =pod
933:
1.204 matthew 934: =item searchhelp()
1.201 www 935:
936: Inputs: none
937:
938: Outputs: return little blurb on how to enter searches
939:
940: =cut
941:
942: ######################################################################
943: ######################################################################
944: sub searchhelp {
1.228 matthew 945: return &mt('Enter words and quoted phrases');
1.200 www 946: }
1.8 harris41 947:
1.121 matthew 948: ######################################################################
949: ######################################################################
950:
951: =pod
952:
1.204 matthew 953: =item &get_persistent_form_data()
1.145 matthew 954:
1.146 matthew 955: Inputs: filename of database
956:
957: Outputs: returns undef on database errors.
958:
959: This function is the reverse of &make_persistent() for form data.
1.145 matthew 960: Retrieve persistent data from %persistent_db. Retrieved items will have their
1.243 albertel 961: values unescaped. If a form value already exists in $env, it will not be
1.146 matthew 962: overwritten. Form values that are array references may have values appended
963: to them.
1.145 matthew 964:
965: =cut
966:
967: ######################################################################
968: ######################################################################
1.146 matthew 969: sub get_persistent_form_data {
970: my $filename = shift;
1.147 matthew 971: return 0 if (! -e $filename);
1.146 matthew 972: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 973: &GDBM_READER(),0640));
1.146 matthew 974: #
975: # These make sure we do not get array references printed out as 'values'.
1.161 matthew 976: my %arrays_allowed = ('form.domains'=>1);
1.146 matthew 977: #
978: # Loop through the keys, looking for 'form.'
979: foreach my $name (keys(%persistent_db)) {
980: next if ($name !~ /^form./);
1.182 matthew 981: # Kludgification begins!
982: if ($name eq 'form.domains' &&
1.243 albertel 983: $env{'form.searchmode'} eq 'basic' &&
984: $env{'form.phase'} ne 'disp_basic') {
1.182 matthew 985: next;
986: }
987: # End kludge (hopefully)
1.243 albertel 988: next if (exists($env{$name}));
1.146 matthew 989: my @values = map {
1.265 www 990: &unescape($_);
1.146 matthew 991: } split(',',$persistent_db{$name});
992: next if (@values <1);
1.152 matthew 993: if ($arrays_allowed{$name}) {
1.243 albertel 994: $env{$name} = [@values];
1.146 matthew 995: } else {
1.243 albertel 996: $env{$name} = $values[0] if ($values[0]);
1.146 matthew 997: }
998: }
999: untie (%persistent_db);
1000: return 1;
1001: }
1.181 matthew 1002:
1.146 matthew 1003: ######################################################################
1004: ######################################################################
1005:
1006: =pod
1007:
1.204 matthew 1008: =item &get_persistent_data()
1.146 matthew 1009:
1010: Inputs: filename of database, ref to array of values to recover.
1011:
1012: Outputs: array of values. Returns undef on error.
1013:
1014: This function is the reverse of &make_persistent();
1015: Retrieve persistent data from %persistent_db. Retrieved items will have their
1.336 raeburn 1016: values unescaped. If the item is 'domains; then the returned
1017: value will be a hash pointer. Otherwise, if the item contains
1018: commas (before unescaping), the returned value will be an array pointer.
1.146 matthew 1019:
1020: =cut
1021:
1022: ######################################################################
1023: ######################################################################
1024: sub get_persistent_data {
1025: my $filename = shift;
1026: my @Vars = @{shift()};
1027: my @Values; # Return array
1028: return undef if (! -e $filename);
1029: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 1030: &GDBM_READER(),0640));
1.146 matthew 1031: foreach my $name (@Vars) {
1032: if (! exists($persistent_db{$name})) {
1033: push @Values, undef;
1034: next;
1035: }
1.336 raeburn 1036: if ($name eq 'domains') {
1037: my %valueshash;
1038: my @items= map { &unescape($_); } split(',',$persistent_db{$name});
1039: foreach my $item (@items) {
1040: if ($item =~ /=/) {
1041: my ($key,$val) = map { &unescape($_); } split(/=/,$item);
1042: $valueshash{$key} = $val;
1043: }
1044: }
1045: push(@Values,\%valueshash);
1.145 matthew 1046: } else {
1.336 raeburn 1047: my @values = map {
1048: &unescape($_);
1049: } split(',',$persistent_db{$name});
1050: if (@values <= 1) {
1051: push @Values,$values[0];
1052: } else {
1053: push @Values,\@values;
1054: }
1.145 matthew 1055: }
1056: }
1.146 matthew 1057: untie (%persistent_db);
1058: return @Values;
1.145 matthew 1059: }
1060:
1061: ######################################################################
1062: ######################################################################
1063:
1064: =pod
1065:
1.121 matthew 1066: =item &make_persistent()
1067:
1.146 matthew 1068: Inputs: Hash of values to save, filename of persistent database.
1069:
1070: Store variables away to the %persistent_db.
1.145 matthew 1071: Values will be escaped. Values that are array pointers will have their
1.336 raeburn 1072: elements escaped and concatenated in a comma separated string. Values
1073: that are hash pointers will have their keys and values escaped and
1074: concatenated in a comma separated string
1.122 matthew 1075:
1.121 matthew 1076: =cut
1077:
1078: ######################################################################
1079: ######################################################################
1.98 harris41 1080: sub make_persistent {
1.133 matthew 1081: my %save = %{shift()};
1.146 matthew 1082: my $filename = shift;
1083: return undef if (! tie(%persistent_db,'GDBM_File',
1.148 matthew 1084: $filename,&GDBM_WRCREAT(),0640));
1.146 matthew 1085: foreach my $name (keys(%save)) {
1.336 raeburn 1086: my @values=();
1087: if (ref($save{$name}) eq 'ARRAY') {
1088: @values = @{$save{$name}};
1089: } elsif (ref($save{$name}) eq 'HASH') {
1090: foreach my $key (%{$save{$name}}) {
1091: push(@values,&escape($key).'='.&escape($save{$name}{$key}));
1092: }
1093: } else {
1094: @values = $save{$name};
1095: }
1096: # We handle array and hash references, but not recursively.
1.265 www 1097: my $store = join(',', map { &escape($_); } @values );
1.145 matthew 1098: $persistent_db{$name} = $store;
1.109 harris41 1099: }
1.146 matthew 1100: untie(%persistent_db);
1101: return 1;
1102: }
1103:
1104: ######################################################################
1105: ######################################################################
1106:
1107: =pod
1108:
1109: =item &make_form_data_persistent()
1110:
1111: Inputs: filename of persistent database.
1112:
1113: Store most form variables away to the %persistent_db.
1114: Values will be escaped. Values that are array pointers will have their
1.205 www 1115: elements escaped and concatenated in a comma separated string.
1.146 matthew 1116:
1117: =cut
1118:
1119: ######################################################################
1120: ######################################################################
1121: sub make_form_data_persistent {
1122: my $r = shift;
1123: my $filename = shift;
1124: my %save;
1.243 albertel 1125: foreach (keys(%env)) {
1.150 matthew 1126: next if (!/^form/ || /submit/);
1.243 albertel 1127: $save{$_} = $env{$_};
1.146 matthew 1128: }
1.152 matthew 1129: return &make_persistent(\%save,$filename);
1.98 harris41 1130: }
1131:
1.122 matthew 1132: ######################################################################
1133: ######################################################################
1134:
1135: =pod
1136:
1.134 matthew 1137: =item &parse_advanced_search()
1138:
1139: Parse advanced search form and return the following:
1140:
1141: =over 4
1142:
1143: =item $query Scalar containing an SQL query.
1.126 matthew 1144:
1.134 matthew 1145: =item $customquery Scalar containing a custom query.
1146:
1147: =item $customshow Scalar containing commands to show custom metadata.
1148:
1149: =item $libraries_to_query Reference to array of domains to search.
1150:
1151: =back
1.122 matthew 1152:
1153: =cut
1154:
1155: ######################################################################
1156: ######################################################################
1.134 matthew 1157: sub parse_advanced_search {
1.196 matthew 1158: my ($r,$closebutton,$hidden_fields)=@_;
1.216 matthew 1159: my @BasicFields = ('title','author','subject','keywords','url','version',
1.227 matthew 1160: 'notes','abstract','extension','owner','authorspace',
1.216 matthew 1161: # 'custommetadata','customshow',
1162: 'modifyinguser','standards','mime');
1.222 matthew 1163: my @StatsFields = &statfields();
1164: my @EvalFields = &evalfields();
1.32 harris41 1165: my $fillflag=0;
1.230 matthew 1166: my $pretty_search_string = "";
1.64 harris41 1167: # Clean up fields for safety
1.216 matthew 1168: for my $field (@BasicFields,
1169: 'creationdatestart_month','creationdatestart_day',
1.64 harris41 1170: 'creationdatestart_year','creationdateend_month',
1171: 'creationdateend_day','creationdateend_year',
1172: 'lastrevisiondatestart_month','lastrevisiondatestart_day',
1173: 'lastrevisiondatestart_year','lastrevisiondateend_month',
1.216 matthew 1174: 'lastrevisiondateend_day','lastrevisiondateend_year') {
1.300 raeburn 1175: $env{'form.'.$field}=~s/[^\w\/\s\(\)\=\-\"\'.\*]//g;
1.64 harris41 1176: }
1.117 matthew 1177: foreach ('mode','form','element') {
1178: # is this required? Hmmm.
1.243 albertel 1179: next if (! exists($env{'form.'.$_}));
1.265 www 1180: $env{'form.'.$_}=&unescape($env{'form.'.$_});
1.243 albertel 1181: $env{'form.'.$_}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1182: }
1.131 matthew 1183: # Preprocess the category form element.
1.243 albertel 1184: $env{'form.category'} = 'any' if (! defined($env{'form.category'}) ||
1185: ref($env{'form.category'}));
1.161 matthew 1186: #
1.90 harris41 1187: # Check to see if enough information was filled in
1.222 matthew 1188: foreach my $field (@BasicFields) {
1.243 albertel 1189: if (&filled($env{'form.'.$field})) {
1.32 harris41 1190: $fillflag++;
1191: }
1192: }
1.222 matthew 1193: foreach my $field (@StatsFields,@EvalFields) {
1.243 albertel 1194: if (&filled($env{'form.'.$field.'_max'})) {
1.222 matthew 1195: $fillflag++;
1196: }
1.243 albertel 1197: if (&filled($env{'form.'.$field.'_min'})) {
1.222 matthew 1198: $fillflag++;
1199: }
1200: }
1201:
1.216 matthew 1202: for my $field ('lowestgradelevel','highestgradelevel') {
1.243 albertel 1203: if ( $env{'form.'.$field} =~ /^\d+$/ &&
1204: $env{'form.'.$field} > 0) {
1.216 matthew 1205: $fillflag++;
1206: }
1207: }
1.279 raeburn 1208: if ($env{'form.area'} eq 'portfolio') {
1209: # Added metadata fields
1210: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1211: my $field = $env{'form.addedfield_'.$i};
1212: $field =~ s/^\s*(\S*)\s*$/$1/;
1213: $field =~ s/\W/_/g;
1214: if ($field ne '') {
1215: $fillflag++;
1216: }
1217: }
1218: }
1.212 matthew 1219: if (! $fillflag) {
1.204 matthew 1220: &output_blank_field_error($r,$closebutton,
1221: 'phase=disp_adv',$hidden_fields);
1.134 matthew 1222: return ;
1.32 harris41 1223: }
1.90 harris41 1224: # Turn the form input into a SQL-based query
1.39 harris41 1225: my $query='';
1.45 harris41 1226: my @queries;
1.143 matthew 1227: my $font = '<font color="#800000" face="helvetica">';
1.90 harris41 1228: # Evaluate logical expression AND/OR/NOT phrase fields.
1.216 matthew 1229: foreach my $field (@BasicFields) {
1.243 albertel 1230: next if (!defined($env{'form.'.$field}) || $env{'form.'.$field} eq '');
1.228 matthew 1231: my ($error,$SQLQuery) =
1.243 albertel 1232: &process_phrase_input($env{'form.'.$field},
1233: $env{'form.'.$field.'_related'},$field);
1.228 matthew 1234: if (defined($error)) {
1235: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_adv',
1236: $hidden_fields,$field);
1237: return;
1238: } else {
1239: $pretty_search_string .=
1.243 albertel 1240: $font.$field.'</font>: '.$env{'form.'.$field};
1241: if ($env{'form.'.$field.'_related'}) {
1.228 matthew 1242: my @Words =
1243: &Apache::loncommon::get_related_words
1.243 albertel 1244: ($env{'form.'.$field});
1.228 matthew 1245: if (@Words) {
1246: $pretty_search_string.= ' with related words: '.
1247: join(', ',@Words[0..4]);
1.143 matthew 1248: } else {
1.228 matthew 1249: $pretty_search_string.= ' with related words.';
1.143 matthew 1250: }
1.142 matthew 1251: }
1.228 matthew 1252: $pretty_search_string .= '<br />';
1253: push (@queries,$SQLQuery);
1.131 matthew 1254: }
1.44 harris41 1255: }
1.161 matthew 1256: #
1257: # Make the 'mime' from 'form.category' and 'form.extension'
1258: #
1259: my $searchphrase;
1.243 albertel 1260: if (exists($env{'form.category'}) &&
1261: $env{'form.category'} !~ /^\s*$/ &&
1262: $env{'form.category'} ne 'any') {
1.161 matthew 1263: my @extensions = &Apache::loncommon::filecategorytypes
1.243 albertel 1264: ($env{'form.category'});
1.161 matthew 1265: if (scalar(@extensions) > 0) {
1266: $searchphrase = join(' OR ',@extensions);
1267: }
1268: }
1269: if (defined($searchphrase)) {
1.228 matthew 1270: my ($error,$SQLsearch) = &process_phrase_input($searchphrase,0,'mime');
1271: push @queries,$SQLsearch;
1.161 matthew 1272: $pretty_search_string .=$font.'mime</font> contains <b>'.
1273: $searchphrase.'</b><br />';
1.135 matthew 1274: }
1.204 matthew 1275: #
1.90 harris41 1276: # Evaluate option lists
1.243 albertel 1277: if ($env{'form.lowestgradelevel'} &&
1278: $env{'form.lowestgradelevel'} ne '0' &&
1279: $env{'form.lowestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1280: push(@queries,
1.243 albertel 1281: '(lowestgradelevel>='.$env{'form.lowestgradelevel'}.')');
1.216 matthew 1282: $pretty_search_string.="lowestgradelevel>=".
1.243 albertel 1283: $env{'form.lowestgradelevel'}."<br />\n";
1.216 matthew 1284: }
1.243 albertel 1285: if ($env{'form.highestgradelevel'} &&
1286: $env{'form.highestgradelevel'} ne '0' &&
1287: $env{'form.highestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1288: push(@queries,
1.243 albertel 1289: '(highestgradelevel<='.$env{'form.highestgradelevel'}.')');
1.216 matthew 1290: $pretty_search_string.="highestgradelevel<=".
1.243 albertel 1291: $env{'form.highestgradelevel'}."<br />\n";
1.216 matthew 1292: }
1.243 albertel 1293: if ($env{'form.language'} and $env{'form.language'} ne 'any') {
1294: push @queries,"(language like \"$env{'form.language'}\")";
1.143 matthew 1295: $pretty_search_string.=$font."language</font>= ".
1.243 albertel 1296: &Apache::loncommon::languagedescription($env{'form.language'}).
1.143 matthew 1297: "<br />\n";
1.58 harris41 1298: }
1.243 albertel 1299: if ($env{'form.copyright'} and $env{'form.copyright'} ne 'any') {
1300: push @queries,"(copyright like \"$env{'form.copyright'}\")";
1.143 matthew 1301: $pretty_search_string.=$font."copyright</font> = ".
1.243 albertel 1302: &Apache::loncommon::copyrightdescription($env{'form.copyright'}).
1.230 matthew 1303: "<br />\n";
1.58 harris41 1304: }
1.276 raeburn 1305: if ($env{'form.area'} eq 'portfolio') {
1306: #
1307: # Added metadata fields
1308: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1.279 raeburn 1309: my $field = $env{'form.addedfield_'.$i};
1310: $field =~ s/^\s*(\S*)\s*$/$1/;
1311: $field =~ s/\W/_/g;
1312: $field =~ tr/A-Z/a-z/;
1313: if ($field ne '') {
1314: my $value = $env{'form.addedvalues_'.$i};
1315: if ($value ne '') {
1.280 albertel 1316: $value =~ s/'/''/g; #' stupid emacs
1.279 raeburn 1317: my ($error,$query) =
1318: &process_phrase_input($value,0,'pf.value');
1319: if (!defined($error)) {
1320: push(@queries,"pf.field = '$field' AND $query");
1321: $pretty_search_string .=
1322: $font.$field.'</font>: '.
1323: $env{'form.addedvalues_'.$i}.'<br />';
1324: }
1325: } else {
1326: push(@queries,"pf.field = '$field' AND pf.value IS NULL");
1327: }
1.276 raeburn 1328: }
1329: }
1330: } else {
1331: #
1332: # Statistics
1333: foreach my $field (@StatsFields,@EvalFields) {
1334: my ($min,$max);
1335: if (exists($env{'form.'.$field.'_min'}) &&
1336: $env{'form.'.$field.'_min'} ne '') {
1337: $min = $env{'form.'.$field.'_min'};
1338: }
1339: if (exists($env{'form.'.$field.'_max'}) &&
1340: $env{'form.'.$field.'_max'} ne '') {
1341: $max = $env{'form.'.$field.'_max'};
1342: }
1343: next if (! defined($max) && ! defined($min));
1344: if (defined($min) && defined($max)) {
1345: ($min,$max) = sort {$a <=>$b} ($min,$max);
1346: }
1347: if (defined($min) && $min =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1348: push(@queries,'('.$field.'>'.$min.')');
1349: $pretty_search_string.=$font.$field.'</font>>'.$min.'<br />';
1350: }
1351: if (defined($max) && $max =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1352: push(@queries,'('.$field.'<'.$max.')');
1353: $pretty_search_string.=$font.$field.'</font><'.$max.'<br />';
1354: }
1.217 matthew 1355: }
1356: }
1357: #
1.90 harris41 1358: # Evaluate date windows
1.216 matthew 1359: my $cafter =
1360: &Apache::lonhtmlcommon::get_date_from_form('creationdate1');
1361: my $cbefore =
1362: &Apache::lonhtmlcommon::get_date_from_form('creationdate2');
1363: if ($cafter > $cbefore) {
1364: my $tmp = $cafter;
1365: $cafter = $cbefore;
1366: $cbefore = $tmp;
1367: }
1368: my $mafter =
1369: &Apache::lonhtmlcommon::get_date_from_form('revisiondate1');
1370: my $mbefore =
1371: &Apache::lonhtmlcommon::get_date_from_form('revisiondate2');
1372: if ($mafter > $mbefore) {
1373: my $tmp = $mafter;
1374: $mafter = $mbefore;
1375: $mbefore = $tmp;
1376: }
1377: my ($datequery,$error,$prettydate)=&build_date_queries($cafter,$cbefore,
1378: $mafter,$mbefore);
1379: if (defined($error)) {
1380: &output_date_error($r,$error,$closebutton,$hidden_fields);
1381: } elsif (defined($datequery)) {
1.143 matthew 1382: # Here is where you would set up pretty_search_string to output
1383: # date query information.
1.216 matthew 1384: $pretty_search_string .= '<br />'.$prettydate.'<br />';
1.60 harris41 1385: push @queries,$datequery;
1386: }
1.204 matthew 1387: #
1.90 harris41 1388: # Process form information for custom metadata querying
1.134 matthew 1389: my $customquery=undef;
1.204 matthew 1390: ##
1391: ## The custom metadata search was removed q long time ago mostly
1392: ## because I was unable to figureout exactly how it worked and could
1393: ## not imagine people actually using it. MH
1394: ##
1.243 albertel 1395: # if ($env{'form.custommetadata'}) {
1.204 matthew 1396: # $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".
1.243 albertel 1397: # $env{'form.custommetadata'}."</b><br />\n";
1.204 matthew 1398: # $customquery=&build_custommetadata_query('custommetadata',
1.243 albertel 1399: # $env{'form.custommetadata'});
1.204 matthew 1400: # }
1.134 matthew 1401: my $customshow=undef;
1.243 albertel 1402: # if ($env{'form.customshow'}) {
1.204 matthew 1403: # $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".
1.243 albertel 1404: # $env{'form.customshow'}."</b><br />\n";
1405: # $customshow=$env{'form.customshow'};
1.204 matthew 1406: # $customshow=~s/[^\w\s]//g;
1407: # my @fields=split(/\s+/,$customshow);
1408: # $customshow=join(" ",@fields);
1409: # }
1410: ##
1.132 matthew 1411: ## Deal with restrictions to given domains
1412: ##
1.336 raeburn 1413: my ($libraries_to_query,$pretty_domains_string,$domains_to_query) =
1414: &parse_domain_restrictions();
1.254 www 1415: if ($pretty_domains_string) {
1.251 www 1416: $pretty_search_string .= $pretty_domains_string."<br />\n";
1417: }
1.180 matthew 1418: #
1419: if (@queries) {
1.277 raeburn 1420: if ($env{'form.area'} eq 'portfolio') {
1.300 raeburn 1421: $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 < UTC_TIMESTAMP() AND (pa.end IS NULL OR pa.end > UTC_TIMESTAMP())) AND (".join(') AND (',@queries).'))';
1.277 raeburn 1422: } else {
1423: $query="SELECT * FROM metadata WHERE (".join(") AND (",@queries).')';
1424: }
1.180 matthew 1425: } elsif ($customquery) {
1426: $query = '';
1427: }
1.241 matthew 1428: #&Apache::lonnet::logthis('advanced query = '.$/.$query);
1.180 matthew 1429: return ($query,$customquery,$customshow,$libraries_to_query,
1.336 raeburn 1430: $pretty_search_string,$domains_to_query);
1.180 matthew 1431: }
1432:
1433: sub parse_domain_restrictions {
1.132 matthew 1434: my $libraries_to_query = undef;
1.336 raeburn 1435: my $domains_to_query = undef;
1.243 albertel 1436: # $env{'form.domains'} can be either a scalar or an array reference.
1.132 matthew 1437: # We need an array.
1.243 albertel 1438: if (! exists($env{'form.domains'}) || $env{'form.domains'} eq '') {
1.240 matthew 1439: return (undef,'',undef);
1.180 matthew 1440: }
1.245 albertel 1441: my @allowed_domains = &Apache::loncommon::get_env_multiple('form.domains');
1.204 matthew 1442: #
1.132 matthew 1443: my %domain_hash = ();
1.143 matthew 1444: my $pretty_domains_string;
1.132 matthew 1445: foreach (@allowed_domains) {
1446: $domain_hash{$_}++;
1447: }
1.143 matthew 1448: if ($domain_hash{'any'}) {
1.273 www 1449: $pretty_domains_string = &mt("in all LON-CAPA domains.");
1.143 matthew 1450: } else {
1451: if (@allowed_domains > 1) {
1.273 www 1452: $pretty_domains_string = &mt("in LON-CAPA domains:");
1.143 matthew 1453: } else {
1.273 www 1454: $pretty_domains_string = &mt("in LON-CAPA domain ");
1.143 matthew 1455: }
1456: foreach (sort @allowed_domains) {
1.152 matthew 1457: $pretty_domains_string .= "<b>".$_."</b> ";
1.132 matthew 1458: }
1.336 raeburn 1459: my %library_servers = &Apache::lonnet::get_unique_servers(\@allowed_domains,
1460: 'library');
1461: my (%older_library_servers,%okdoms,%domains_for_id);
1462: map { $okdoms{$_} = 1; } @allowed_domains;
1463: foreach my $key (keys(%library_servers)) {
1464: if (&Apache::lonnet::get_server_loncaparev('',$key) =~ /^\'?(\d+)\.(\d+)/) {
1465: my $major = $1;
1466: my $minor = $2;
1467: if (($major < 2) || (($major == 2) && ($minor < 11))) {
1468: map { $older_library_servers{$_} = 1; }
1469: &Apache::lonnet::machine_ids($library_servers{$key});
1470: } else {
1471: my %possdoms;
1472: map { $possdoms{$_}=1 if ($okdoms{$_}); }
1473: &Apache::lonnet::machine_domains($library_servers{$key});
1474: $domains_for_id{$key} = join(',',sort(keys(%possdoms)));
1475: }
1476: }
1477: }
1478: my %servers = (%library_servers,%older_library_servers);
1.280 albertel 1479: $libraries_to_query = [keys(%servers)];
1.336 raeburn 1480: $domains_to_query = \%domains_for_id;
1.132 matthew 1481: }
1.239 matthew 1482: return ($libraries_to_query,
1.336 raeburn 1483: $pretty_domains_string,
1484: $domains_to_query);
1.18 harris41 1485: }
1486:
1.122 matthew 1487: ######################################################################
1488: ######################################################################
1489:
1490: =pod
1491:
1.134 matthew 1492: =item &parse_basic_search()
1.122 matthew 1493:
1.134 matthew 1494: Parse the basic search form and return a scalar containing an sql query.
1.126 matthew 1495:
1.122 matthew 1496: =cut
1497:
1498: ######################################################################
1499: ######################################################################
1.134 matthew 1500: sub parse_basic_search {
1.145 matthew 1501: my ($r,$closebutton)=@_;
1.204 matthew 1502: #
1.64 harris41 1503: # Clean up fields for safety
1504: for my $field ('basicexp') {
1.300 raeburn 1505: $env{"form.$field"}=~s/[^\w\s\'\"\!\(\)\-\*]//g;
1.64 harris41 1506: }
1.117 matthew 1507: foreach ('mode','form','element') {
1508: # is this required? Hmmm.
1.243 albertel 1509: next unless (exists($env{"form.$_"}));
1.265 www 1510: $env{"form.$_"}=&unescape($env{"form.$_"});
1.243 albertel 1511: $env{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1512: }
1.336 raeburn 1513: my ($libraries_to_query,$pretty_domains_string,$domains_to_query) =
1514: &parse_domain_restrictions();
1.204 matthew 1515: #
1516: # Check to see if enough of a query is filled in
1.243 albertel 1517: my $search_string = $env{'form.basicexp'};
1.220 matthew 1518: if (! &filled($search_string)) {
1.151 matthew 1519: &output_blank_field_error($r,$closebutton,'phase=disp_basic');
1.24 harris41 1520: return OK;
1521: }
1.228 matthew 1522: my $pretty_search_string=$search_string;
1.224 matthew 1523: my @Queries;
1.276 raeburn 1524: my @fields = ('title','author','subject','notes','abstract','keywords');
1525: my $searchfield;
1526: if ($env{'form.area'} eq 'portfolio') {
1527: $searchfield = 'concat_ws(" ",pm.'.join(',pm.',@fields).')';
1528: } else {
1529: $searchfield = 'concat_ws(" ",'.join(',',@fields).')';
1530: }
1.228 matthew 1531: my ($error,$SQLQuery) = &process_phrase_input($search_string,
1.243 albertel 1532: $env{'form.related'},
1.228 matthew 1533: $searchfield);
1534: if ($error) {
1535: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic',
1536: '','basicexp');
1537: return;
1.141 matthew 1538: }
1.228 matthew 1539: push(@Queries,$SQLQuery);
1540: #foreach my $q (@Queries) {
1541: # &Apache::lonnet::logthis(' '.$q);
1542: #}
1.276 raeburn 1543: my $final_query;
1544: if ($env{'form.area'} eq 'portfolio') {
1.300 raeburn 1545: $final_query = 'SELECT pm.*,pa.keynum,pa.scope FROM portfolio_metadata pm, portfolio_access pa WHERE (pm.url = pa.url AND (pa.start < UTC_TIMESTAMP() AND (pa.end IS NULL OR pa.end > UTC_TIMESTAMP())) AND '.join(" AND ",@Queries).')';
1.276 raeburn 1546: } else {
1547: $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries);
1548: }
1.204 matthew 1549: #
1.273 www 1550: if ($env{'form.related'}) {
1551: $pretty_search_string.=' '.&mt('(including related words)');
1552: }
1.180 matthew 1553: if (defined($pretty_domains_string) && $pretty_domains_string ne '') {
1554: $pretty_search_string .= ' '.$pretty_domains_string;
1555: }
1.143 matthew 1556: $pretty_search_string .= "<br />\n";
1.225 matthew 1557: $pretty_search_string =~ s:^<br /> and ::;
1.276 raeburn 1558: &Apache::lonnet::logthis('simple search final query = '.$/.$final_query);
1.183 matthew 1559: return ($final_query,$pretty_search_string,
1.336 raeburn 1560: $libraries_to_query,$domains_to_query);
1.22 harris41 1561: }
1562:
1.228 matthew 1563:
1564: ###############################################################
1565: ###############################################################
1566:
1567: my @Phrases;
1568:
1569: sub concat {
1570: my ($item) = @_;
1571: my $results = '';
1572: foreach (@$item) {
1573: if (ref($_) eq 'ARRAY') {
1574: $results .= join(' ',@$_);
1575: }
1576: }
1577: return $results;
1578: }
1579:
1.224 matthew 1580: sub process_phrase_input {
1.228 matthew 1581: my ($phrase,$related,$field)=@_;
1582: #&Apache::lonnet::logthis('phrase = :'.$phrase.':');
1583: my $grammar = <<'ENDGRAMMAR';
1584: searchphrase:
1585: expression /^\Z/ {
1586: # &Apache::lonsearchcat::print_item(\@item,0);
1587: [@item];
1588: }
1589: expression:
1590: phrase(s) {
1591: [@item];
1592: }
1593: phrase:
1594: orword {
1595: [@item];
1596: }
1597: | andword {
1598: [@item];
1599: }
1600: | minusword {
1601: unshift(@::Phrases,$item[1]->[0]);
1602: unshift(@::Phrases,$item[1]->[1]);
1603: [@item];
1604: }
1605: | word {
1606: unshift(@::Phrases,$item[1]);
1607: [@item];
1608: }
1609: #
1610: orword:
1611: word 'OR' phrase {
1612: unshift(@::Phrases,'OR');
1613: unshift(@::Phrases,$item[1]);
1614: [@item];
1615: }
1616: | word 'or' phrase {
1617: unshift(@::Phrases,'OR');
1618: unshift(@::Phrases,$item[1]);
1619: [@item];
1620: }
1621: | minusword 'OR' phrase {
1622: unshift(@::Phrases,'OR');
1623: unshift(@::Phrases,$item[1]->[0]);
1624: unshift(@::Phrases,$item[1]->[1]);
1625: [@item];
1626: }
1627: | minusword 'or' phrase {
1628: unshift(@::Phrases,'OR');
1629: unshift(@::Phrases,$item[1]->[0]);
1630: unshift(@::Phrases,$item[1]->[1]);
1631: [@item];
1632: }
1633: andword:
1634: word phrase {
1635: unshift(@::Phrases,'AND');
1636: unshift(@::Phrases,$item[1]);
1637: [@item];
1638: }
1639: | minusword phrase {
1640: unshift(@::Phrases,'AND');
1641: unshift(@::Phrases,$item[1]->[0]);
1642: unshift(@::Phrases,$item[1]->[1]);
1643: [@item];
1644: }
1645: #
1646: minusword:
1647: '-' word {
1648: [$item[2],'NOT'];
1649: }
1650: word:
1651: "'" term(s) "'" {
1652: &Apache::lonsearchcat::concat(\@item);
1653: }
1654: | '"' term(s) '"' {
1655: &Apache::lonsearchcat::concat(\@item);
1656: }
1657: | term {
1658: $item[1];
1659: }
1660: term:
1.284 albertel 1661: /[\w\Q:!@#$%^&*()+_=|{}<>,.;\\\/?\E\-]+/ {
1.228 matthew 1662: $item[1];
1663: }
1664: ENDGRAMMAR
1665: #
1666: # The end result of parsing the phrase with the grammar is an array
1667: # @::Phrases.
1668: # $phrase = "gene splicing" or cat -> "gene splicing","OR","cat"
1669: # $phrase = "genetic engineering" -dna ->
1670: # "genetic engineering","AND","NOT","dna"
1671: # $phrase = cat or dog -poodle -> "cat","OR","dog","AND","NOT","poodle"
1672: undef(@::Phrases);
1673: my $p = new Parse::RecDescent($grammar);
1674: if (! defined($p->searchphrase($phrase))) {
1675: &Apache::lonnet::logthis('lonsearchcat:unable to process:'.$phrase);
1676: return 'Unable to process phrase '.$phrase;
1677: }
1678: #
1679: # Go through the phrases and make sense of them.
1680: # Apply modifiers NOT OR and AND to the phrases.
1681: my @NewPhrases;
1682: while(@::Phrases) {
1683: my $phrase = shift(@::Phrases);
1684: # &Apache::lonnet::logthis('phrase = '.$phrase);
1685: my $phrasedata;
1686: if ($phrase =~ /^(NOT|OR|AND)$/) {
1687: if ($phrase eq 'OR') {
1688: $phrasedata->{'or'}++;
1689: if (! @::Phrases) { $phrasedata = undef; last; }
1690: $phrase = shift(@::Phrases);
1691: } elsif ($phrase eq 'AND') {
1692: $phrasedata->{'and'}++;
1693: if (! @::Phrases) { $phrasedata = undef; last; }
1694: $phrase = shift(@::Phrases);
1.224 matthew 1695: }
1.228 matthew 1696: if ($phrase eq 'NOT') {
1697: $phrasedata->{'negate'}++;
1698: if (! @::Phrases) { $phrasedata = undef; last; }
1699: $phrase = shift(@::Phrases);
1.224 matthew 1700: }
1.228 matthew 1701: }
1702: $phrasedata->{'phrase'} = $phrase;
1703: if ($related) {
1704: my @NewWords;
1705: (undef,@NewWords) = &related_version($phrasedata->{'phrase'});
1706: $phrasedata->{'related_words'} = \@NewWords;
1707: }
1708: push(@NewPhrases,$phrasedata);
1709: }
1710: #
1711: # Actually build the sql query from the phrases
1712: my $SQLQuery;
1713: foreach my $phrase (@NewPhrases) {
1714: my $query;
1715: if ($phrase->{'negate'}) {
1716: $query .= $field.' NOT LIKE "%'.$phrase->{'phrase'}.'%"';
1.224 matthew 1717: } else {
1.228 matthew 1718: $query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"';
1719: }
1720: foreach my $related (@{$phrase->{'related_words'}}) {
1721: if ($phrase->{'negate'}) {
1722: $query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"';
1723: } else {
1724: $query .= ' OR '.$field.' LIKE "%'.$related.'%"';
1725: }
1726: }
1727: if ($SQLQuery) {
1728: if ($phrase->{'or'}) {
1729: $SQLQuery .= ' OR ('.$query.')';
1730: } else {
1731: $SQLQuery .= ' AND ('.$query.')';
1.224 matthew 1732: }
1.228 matthew 1733: } else {
1734: $SQLQuery = '('.$query.')';
1.224 matthew 1735: }
1736: }
1737: #
1.228 matthew 1738: # &Apache::lonnet::logthis("SQLQuery = $SQLQuery");
1.224 matthew 1739: #
1.228 matthew 1740: return undef,$SQLQuery;
1.224 matthew 1741: }
1742:
1.122 matthew 1743: ######################################################################
1744: ######################################################################
1745:
1746: =pod
1747:
1.204 matthew 1748: =item &related_version()
1.142 matthew 1749:
1750: Modifies an input string to include related words. Words in the string
1751: are replaced with parenthesized lists of 'OR'd words. For example
1752: "torque" is replaced with "(torque OR word1 OR word2 OR ...)".
1753:
1754: Note: Using this twice on a string is probably silly.
1755:
1756: =cut
1757:
1758: ######################################################################
1759: ######################################################################
1760: sub related_version {
1.224 matthew 1761: my ($word) = @_;
1762: return (undef) if (lc($word) =~ /\b(or|and|not)\b/);
1763: my @Words = &Apache::loncommon::get_related_words($word);
1764: # Only use 4 related words
1765: @Words = ($#Words>4? @Words[0..4] : @Words);
1766: my $result = join " OR ", ($word,@Words);
1767: return $result,sort(@Words);
1.142 matthew 1768: }
1769:
1.98 harris41 1770:
1.122 matthew 1771: ######################################################################
1772: ######################################################################
1773:
1774: =pod
1775:
1776: =item &build_custommetadata_query()
1777:
1.126 matthew 1778: Constructs a custom metadata query using a rather heinous regular
1779: expression.
1780:
1.122 matthew 1781: =cut
1782:
1783: ######################################################################
1784: ######################################################################
1.98 harris41 1785: sub build_custommetadata_query {
1786: my ($field_name,$logic_statement)=@_;
1787: my $q=new Text::Query('abc',
1788: -parse => 'Text::Query::ParseAdvanced',
1789: -build => 'Text::Query::BuildAdvancedString');
1790: $q->prepare($logic_statement);
1791: my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'};
1792: # quick fix to change literal into xml tag-matching
1793: # will eventually have to write a separate builder module
1.122 matthew 1794: # wordone=wordtwo becomes\<wordone\>[^\<] *wordtwo[^\<]*\<\/wordone\>
1795: $matchexp =~ s/(\w+)\\=([\w\\\+]+)?# wordone=wordtwo is changed to
1796: /\\<$1\\>?# \<wordone\>
1797: \[\^\\<\]?# [^\<]
1798: \*$2\[\^\\<\]?# *wordtwo[^\<]
1799: \*\\<\\\/$1\\>?# *\<\/wordone\>
1800: /g;
1.98 harris41 1801: return $matchexp;
1802: }
1803:
1.22 harris41 1804:
1.122 matthew 1805: ######################################################################
1806: ######################################################################
1807:
1808: =pod
1809:
1810: =item &build_date_queries()
1811:
1.126 matthew 1812: Builds a SQL logic query to check time/date entries.
1813: Also reports errors (check for /^Incorrect/).
1814:
1.122 matthew 1815: =cut
1816:
1817: ######################################################################
1818: ######################################################################
1.98 harris41 1819: sub build_date_queries {
1.216 matthew 1820: my ($cafter,$cbefore,$mafter,$mbefore) = @_;
1821: my ($result,$error,$pretty_string);
1822: #
1823: # Verify the input
1824: if (! defined($cafter) && ! defined($cbefore) &&
1825: ! defined($mafter) && ! defined($mbefore)) {
1826: # This is an okay situation, so return undef for the error
1827: return (undef,undef,undef);
1828: }
1829: if ((defined($cafter) && ! defined($cbefore)) ||
1830: (defined($cbefore) && ! defined($cafter))) {
1831: # This is bad, so let them know
1.333 raeburn 1832: $error = &mt('Incorrect entry for the creation date. '.
1.216 matthew 1833: 'You must specify both the beginning and ending dates.');
1834: }
1835: if (! defined($error) &&
1836: ((defined($mafter) && ! defined($mbefore)) ||
1837: (defined($mbefore) && ! defined($mafter)))) {
1838: # This is also bad, so let them know
1.333 raeburn 1839: $error = &mt('Incorrect entry for the last revision date. '.
1.216 matthew 1840: 'You must specify both the beginning and ending dates.');
1.98 harris41 1841: }
1.216 matthew 1842: if (! defined($error)) {
1843: #
1844: # Build the queries
1845: my @queries;
1846: if (defined($cbefore) && defined($cafter)) {
1847: my (undef,undef,undef,$caday,$camon,$cayear) = localtime($cafter);
1848: my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore);
1849: # Correct for year being relative to 1900
1850: $cayear+=1900; $cbyear+=1900;
1851: my $cquery=
1852: '(creationdate BETWEEN '.
1853: "'".$cayear.'-'.$camon.'-'.$caday."'".
1854: ' AND '.
1855: "'".$cbyear.'-'.$cbmon.'-'.$cbday." 23:59:59')";
1856: $pretty_string .= '<br />' if (defined($pretty_string));
1857: $pretty_string .=
1858: &mt('created between [_1] and [_2]',
1859: &Apache::lonlocal::locallocaltime($cafter),
1860: &Apache::lonlocal::locallocaltime($cbefore+24*60*60-1));
1861: push(@queries,$cquery);
1862: $pretty_string =~ s/ 00:00:00//g;
1863: }
1864: if (defined($mbefore) && defined($mafter)) {
1865: my (undef,undef,undef,$maday,$mamon,$mayear) = localtime($mafter);
1866: my (undef,undef,undef,$mbday,$mbmon,$mbyear) = localtime($mbefore);
1867: # Correct for year being relative to 1900
1868: $mayear+=1900; $mbyear+=1900;
1869: my $mquery=
1870: '(lastrevisiondate BETWEEN '.
1871: "'".$mayear.'-'.$mamon.'-'.$maday."'".
1872: ' AND '.
1873: "'".$mbyear.'-'.$mbmon.'-'.$mbday." 23:59:59')";
1874: push(@queries,$mquery);
1875: $pretty_string .= '<br />' if (defined($pretty_string));
1876: $pretty_string .=
1877: &mt('last revised between [_1] and [_2]',
1878: &Apache::lonlocal::locallocaltime($mafter),
1879: &Apache::lonlocal::locallocaltime($mbefore+24*60*60-1));
1880: $pretty_string =~ s/ 00:00:00//g;
1881: }
1882: if (@queries) {
1883: $result .= join(" AND ",@queries);
1884: }
1.98 harris41 1885: }
1.216 matthew 1886: return ($result,$error,$pretty_string);
1.18 harris41 1887: }
1.6 harris41 1888:
1.122 matthew 1889: ######################################################################
1890: ######################################################################
1891:
1.144 matthew 1892: =pod
1893:
1894: =item ©right_check()
1895:
1.204 matthew 1896: Inputs: $Metadata, a hash pointer of metadata for a resource.
1897:
1898: Returns: 1 if the resource is available to the user making the query,
1899: 0 otherwise.
1900:
1.144 matthew 1901: =cut
1902:
1903: ######################################################################
1904: ######################################################################
1905: sub copyright_check {
1906: my $Metadata = shift;
1907: # Check copyright tags and skip results the user cannot use
1908: my (undef,undef,$resdom,$resname) = split('/',
1909: $Metadata->{'url'});
1910: # Check for priv
1911: if (($Metadata->{'copyright'} eq 'priv') &&
1.243 albertel 1912: (($env{'user.name'} ne $resname) &&
1913: ($env{'user.domain'} ne $resdom))) {
1.144 matthew 1914: return 0;
1915: }
1916: # Check for domain
1917: if (($Metadata->{'copyright'} eq 'domain') &&
1.243 albertel 1918: ($env{'user.domain'} ne $resdom)) {
1.144 matthew 1919: return 0;
1920: }
1.294 www 1921: # Check for custom rights
1922: if ($Metadata->{'copyright'} eq 'custom') {
1.296 raeburn 1923: return &Apache::lonnet::customaccess('bre',$Metadata->{'url'});
1.294 www 1924: }
1.144 matthew 1925: return 1;
1926: }
1927:
1.151 matthew 1928: ######################################################################
1929: ######################################################################
1930:
1931: =pod
1932:
1.204 matthew 1933: =item &ensure_db_and_table()
1.151 matthew 1934:
1935: Ensure we can get lonmysql to connect to the database and the table we
1936: need exists.
1937:
1938: Inputs: $r, table id
1939:
1940: Returns: undef on error, 1 if the table exists.
1941:
1942: =cut
1943:
1944: ######################################################################
1945: ######################################################################
1946: sub ensure_db_and_table {
1947: my ($r,$table) = @_;
1948: ##
1949: ## Sanity check the table id.
1950: ##
1951: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.334 bisitz 1952: $r->print(&Apache::loncommon::start_page('Error')
1.313 bisitz 1953: .'<p class="LC_error">'
1954: .&mt('Unable to retrieve search results. '
1955: .'Unable to determine the table results were saved in.')
1.334 bisitz 1956: .'</p>'
1957: . '<p>'.&mt('Internal info:').'</p>'
1958: .'<pre>'.$table.'</pre>'
1.313 bisitz 1959: .&Apache::loncommon::end_page()
1960: );
1.151 matthew 1961: return undef;
1962: }
1963: ##
1964: ## Make sure we can connect and the table exists.
1965: ##
1966: my $connection_result = &Apache::lonmysql::connect_to_db();
1967: if (!defined($connection_result)) {
1.332 bisitz 1968: $r->print(
1969: '<p class="LC_error">'
1970: .&mt('Unable to connect to the MySQL database where your results are saved.')
1971: .'</p>'
1972: .&Apache::loncommon::end_page()
1973: );
1.151 matthew 1974: &Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to".
1975: " connect to database.");
1976: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
1977: return undef;
1978: }
1979: my $table_check = &Apache::lonmysql::check_table($table);
1980: if (! defined($table_check)) {
1.332 bisitz 1981: $r->print(
1982: '<p class="LC_error">'
1983: .&mt('A MySQL error has occurred.')
1984: .'</p></form>'
1985: .&Apache::loncommon::end_page());
1.151 matthew 1986: &Apache::lonnet::logthis("lonmysql was unable to determine the status".
1987: " of table ".$table);
1988: return undef;
1989: } elsif (! $table_check) {
1.332 bisitz 1990: $r->print(
1991: '<p class="LC_error">'
1992: .&mt('The table of results could not be found.')
1993: .'</p>'
1994: );
1.151 matthew 1995: &Apache::lonnet::logthis("The user requested a table, ".$table.
1996: ", that could not be found.");
1997: return undef;
1998: }
1999: return 1;
2000: }
2001:
2002: ######################################################################
2003: ######################################################################
2004:
2005: =pod
2006:
1.204 matthew 2007: =item &print_sort_form()
2008:
2009: The sort feature is not implemented at this time. This form just prints
2010: a link to change the search query.
1.151 matthew 2011:
2012: =cut
2013:
2014: ######################################################################
2015: ######################################################################
2016: sub print_sort_form {
2017: my ($r,$pretty_query_string) = @_;
1.224 matthew 2018:
1.151 matthew 2019: ##
1.187 www 2020: my %SortableFields=&Apache::lonlocal::texthash(
2021: id => 'Default',
1.151 matthew 2022: title => 'Title',
2023: author => 'Author',
2024: subject => 'Subject',
2025: url => 'URL',
2026: version => 'Version Number',
2027: mime => 'Mime type',
2028: lang => 'Language',
2029: owner => 'Owner/Publisher',
2030: copyright => 'Copyright',
2031: hostname => 'Host',
2032: creationdate => 'Creation Date',
1.187 www 2033: lastrevisiondate => 'Revision Date'
1.151 matthew 2034: );
2035: ##
1.243 albertel 2036: my $table = $env{'form.table'};
1.151 matthew 2037: return if (! &ensure_db_and_table($r,$table));
2038: ##
2039: ## Get the number of results
2040: ##
2041: my $total_results = &Apache::lonmysql::number_of_rows($table);
2042: if (! defined($total_results)) {
1.256 albertel 2043: $r->print("A MySQL error has occurred.</form>".
2044: &Apache::loncommon::end_page());
1.151 matthew 2045: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2046: " of rows in table ".$table);
2047: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2048: return;
2049: }
1.257 albertel 2050: my $js =<<END;
2051: <script type="text/javascript">
1.313 bisitz 2052: // <![CDATA[
1.151 matthew 2053: function change_sort() {
2054: var newloc = "/adm/searchcat?phase=results";
1.323 bisitz 2055: newloc += "&persistent_db_id=$env{'form.persistent_db_id'}";
2056: newloc += "&sortby=";
1.151 matthew 2057: newloc += document.forms.statusform.elements.sortby.value;
2058: parent.resultsframe.location= newloc;
2059: }
1.313 bisitz 2060: // ]]>
1.151 matthew 2061: </script>
1.257 albertel 2062: END
2063:
1.307 bisitz 2064: my $start_page = &Apache::loncommon::start_page('Results',$js);
1.257 albertel 2065: my $breadcrumbs=
1.263 albertel 2066: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2067: $env{'form.catalogmode'} ne 'import');
1.257 albertel 2068:
2069: my $result = <<END;
2070: $start_page
2071: $breadcrumbs
1.267 www 2072: <form name="statusform" action="" method="post" target="_top">
1.268 www 2073: <input type="hidden" name="catalogmode" value="import" />
1.270 www 2074: <input type="hidden" name="acts" value="" />
1.151 matthew 2075: END
2076:
2077: #<h2>Sort Results</h2>
2078: #Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();">
1.243 albertel 2079: # $env{'form.sortby'} = 'id' if (! defined($env{'form.sortby'}));
1.151 matthew 2080: # foreach (keys(%SortableFields)) {
2081: # $result.="<option name=\"$_\"";
1.243 albertel 2082: # if ($_ eq $env{'form.sortby'}) {
1.151 matthew 2083: # $result.=" selected ";
2084: # }
2085: # $result.=" >$SortableFields{$_}</option>\n";
2086: # }
2087: # $result.="</select>\n";
2088: my $revise = &revise_button();
1.289 bisitz 2089: $result.='<p>'
1.337 ! raeburn 2090: .&mt('Total of [quant,_1,match,matches] to your query.',$total_results)
1.289 bisitz 2091: .' '.$revise.'</p>'
2092: .'<p>'.&mt('Search: ').$pretty_query_string
2093: .'</p></form>';
1.256 albertel 2094: $r->print($result.&Apache::loncommon::end_page());
1.151 matthew 2095: return;
2096: }
2097:
1.144 matthew 2098: #####################################################################
2099: #####################################################################
2100:
2101: =pod
2102:
2103: =item MySQL Table Description
2104:
2105: MySQL table creation requires a precise description of the data to be
2106: stored. The use of the correct types to hold data is vital to efficient
2107: storage and quick retrieval of records. The columns must be described in
2108: the following format:
2109:
2110: =cut
2111:
1.170 matthew 2112: #####################################################################
2113: #####################################################################
1.204 matthew 2114: #
2115: # These should probably be scoped but I don't have time right now...
2116: #
2117: my @Datatypes;
2118: my @Fullindicies;
1.147 matthew 2119:
1.144 matthew 2120: ######################################################################
2121: ######################################################################
2122:
2123: =pod
2124:
1.146 matthew 2125: =item &create_results_table()
2126:
2127: Creates the table of search results by calling lonmysql. Stores the
1.243 albertel 2128: table id in $env{'form.table'}
1.146 matthew 2129:
1.276 raeburn 2130: Inputs: search area - either res or portfolio
1.146 matthew 2131:
2132: Returns: the identifier of the table on success, undef on error.
2133:
2134: =cut
2135:
2136: ######################################################################
2137: ######################################################################
1.204 matthew 2138: sub set_up_table_structure {
1.276 raeburn 2139: my ($tabletype) = @_;
1.204 matthew 2140: my ($datatypes,$fullindicies) =
1.276 raeburn 2141: &LONCAPA::lonmetadata::describe_metadata_storage($tabletype);
1.212 matthew 2142: # Copy the table description before modifying it...
2143: @Datatypes = @{$datatypes};
2144: unshift(@Datatypes,{name => 'id',
1.204 matthew 2145: type => 'MEDIUMINT',
2146: restrictions => 'UNSIGNED NOT NULL',
2147: primary_key => 'yes',
2148: auto_inc => 'yes' });
2149: @Fullindicies = @{$fullindicies};
2150: return;
2151: }
2152:
1.146 matthew 2153: sub create_results_table {
1.276 raeburn 2154: my ($area) = @_;
2155: if ($area eq 'portfolio') {
2156: &set_up_table_structure('portfolio_search');
2157: } else {
2158: &set_up_table_structure('metadata');
2159: }
1.146 matthew 2160: my $table = &Apache::lonmysql::create_table
1.170 matthew 2161: ( { columns => \@Datatypes,
1.172 matthew 2162: FULLTEXT => [{'columns' => \@Fullindicies},],
1.146 matthew 2163: } );
2164: if (defined($table)) {
1.243 albertel 2165: $env{'form.table'} = $table;
1.146 matthew 2166: return $table;
2167: }
2168: return undef; # Error...
2169: }
1.148 matthew 2170:
1.146 matthew 2171: ######################################################################
2172: ######################################################################
2173:
2174: =pod
2175:
1.150 matthew 2176: =item Search Status update functions
1.144 matthew 2177:
1.150 matthew 2178: Each of the following functions changes the values of one of the
2179: input fields used to display the search status to the user. The names
2180: should be explanatory.
1.144 matthew 2181:
1.150 matthew 2182: Inputs: Apache request handler ($r), text to display.
1.148 matthew 2183:
1.150 matthew 2184: Returns: Nothing.
1.148 matthew 2185:
2186: =over 4
2187:
2188: =item &update_count_status()
2189:
1.150 matthew 2190: =item &update_status()
1.148 matthew 2191:
1.150 matthew 2192: =item &update_seconds()
1.148 matthew 2193:
2194: =back
2195:
2196: =cut
2197:
2198: ######################################################################
2199: ######################################################################
2200: sub update_count_status {
2201: my ($r,$text) = @_;
2202: $text =~ s/\'/\\\'/g;
1.313 bisitz 2203: $r->print(<<SCRIPT);
2204: <script type="text/javascript">
2205: // <![CDATA[
2206: document.statusform.count.value = ' $text'
2207: // ]]>
2208: </script>
2209: SCRIPT
2210:
1.148 matthew 2211: $r->rflush();
2212: }
2213:
1.150 matthew 2214: sub update_status {
1.148 matthew 2215: my ($r,$text) = @_;
2216: $text =~ s/\'/\\\'/g;
1.313 bisitz 2217: $r->print(<<SCRIPT);
2218: <script type="text/javascript">
2219: // <![CDATA[
2220: document.statusform.status.value = ' $text'
2221: // ]]>
2222: </script>
2223: SCRIPT
2224:
1.148 matthew 2225: $r->rflush();
2226: }
2227:
1.214 matthew 2228: {
1.250 www 2229: my $max_time = 300; # seconds for the search to complete
1.214 matthew 2230: my $start_time = 0;
2231: my $last_time = 0;
2232:
2233: sub reset_timing {
2234: $start_time = 0;
2235: $last_time = 0;
2236: }
2237:
2238: sub time_left {
2239: if ($start_time == 0) {
2240: $start_time = time;
2241: }
2242: my $time_left = $max_time - (time - $start_time);
2243: $time_left = 0 if ($time_left < 0);
2244: return $time_left;
2245: }
2246:
1.150 matthew 2247: sub update_seconds {
1.214 matthew 2248: my ($r) = @_;
2249: my $time = &time_left();
2250: if (($last_time-$time) > 0) {
1.313 bisitz 2251: $r->print(<<SCRIPT);
2252: <script type="text/javascript">
2253: // <![CDATA[
2254: document.statusform.seconds.value = '$time'
2255: // ]]>
2256: </script>
2257: SCRIPT
2258:
1.214 matthew 2259: $r->rflush();
2260: }
2261: $last_time = $time;
2262: }
2263:
1.148 matthew 2264: }
2265:
2266: ######################################################################
2267: ######################################################################
2268:
2269: =pod
2270:
1.204 matthew 2271: =item &revise_button()
1.151 matthew 2272:
2273: Inputs: None
2274:
2275: Returns: html string for a 'revise search' button.
2276:
2277: =cut
2278:
2279: ######################################################################
2280: ######################################################################
2281: sub revise_button {
1.289 bisitz 2282: my $revisetext = &mt('Revise search');
1.151 matthew 2283: my $revise_phase = 'disp_basic';
1.243 albertel 2284: $revise_phase = 'disp_adv' if ($env{'form.searchmode'} eq 'advanced');
1.151 matthew 2285: my $newloc = '/adm/searchcat'.
1.243 albertel 2286: '?persistent_db_id='.$env{'form.persistent_db_id'}.
1.309 bisitz 2287: '&cleargroupsort=1'.
2288: '&phase='.$revise_phase;
1.289 bisitz 2289: my $result = qq{<input type="button" value="$revisetext" name="revise"} .
1.313 bisitz 2290: qq{ onclick="parent.location='$newloc';" /> };
1.151 matthew 2291: return $result;
2292: }
2293:
2294: ######################################################################
2295: ######################################################################
2296:
2297: =pod
2298:
1.204 matthew 2299: =item &run_search()
2300:
2301: Executes a search query by sending it the the other servers and putting the
2302: results into MySQL.
1.144 matthew 2303:
2304: =cut
2305:
2306: ######################################################################
2307: ######################################################################
2308: sub run_search {
1.276 raeburn 2309: my ($r,$query,$customquery,$customshow,$serverlist,
1.336 raeburn 2310: $pretty_string,$area,$domainsref) = @_;
1.276 raeburn 2311: my $tabletype = 'metadata';
2312: if ($area eq 'portfolio') {
2313: $tabletype = 'portfolio_search';
2314: }
1.150 matthew 2315: my $connection = $r->connection;
1.144 matthew 2316: #
1.146 matthew 2317: # Print run_search header
2318: #
1.307 bisitz 2319: my $start_page = &Apache::loncommon::start_page('Search Status',undef);
1.263 albertel 2320: my $breadcrumbs =
2321: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2322: $env{'form.catalogmode'} ne 'import');
1.151 matthew 2323: $r->print(<<END);
1.257 albertel 2324: $start_page
2325: $breadcrumbs
1.151 matthew 2326: END
1.230 matthew 2327: # Remove leading and trailing <br />
2328: $pretty_string =~ s:^\s*<br />::i;
2329: $pretty_string =~ s:(<br />)*\s*$::im;
2330: my @Lines = split("<br />",$pretty_string);
2331: # I keep getting blank items at the end of the list, hence the following:
2332: while ($Lines[-1] =~ /^\s*$/ && @Lines) {
2333: pop(@Lines);
2334: }
1.152 matthew 2335: if (@Lines > 2) {
1.298 bisitz 2336: $pretty_string = join '<br />',(@Lines[0..2],'...<br />');
1.151 matthew 2337: }
1.214 matthew 2338: $r->print(&mt("Search: [_1]",$pretty_string));
1.146 matthew 2339: $r->rflush();
2340: #
1.145 matthew 2341: # Determine the servers we need to contact.
1.336 raeburn 2342: my (@Servers_to_contact,%domains_by_server);
1.144 matthew 2343: if (defined($serverlist)) {
1.152 matthew 2344: if (ref($serverlist) eq 'ARRAY') {
2345: @Servers_to_contact = @$serverlist;
2346: } else {
2347: @Servers_to_contact = ($serverlist);
2348: }
1.336 raeburn 2349: if (ref($domainsref) eq 'HASH') {
2350: foreach my $server (@Servers_to_contact) {
2351: $domains_by_server{$server} = $domainsref->{$server};
2352: }
2353: }
1.144 matthew 2354: } else {
1.336 raeburn 2355: my %library_servers = &Apache::lonnet::unique_library();
2356: my (%all_library_servers, %older_library_servers);
2357: foreach my $key (keys(%library_servers)) {
2358: if (&Apache::lonnet::get_server_loncaparev('',$key) =~ /^\'?(\d+)\.(\d+)/) {
2359: my $major = $1;
2360: my $minor = $2;
2361: if (($major < 2) || (($major == 2) && ($minor < 11))) {
2362: map { $older_library_servers{$_} = 1; }
2363: &Apache::lonnet::machine_ids($library_servers{$key});
2364: }
2365: }
2366: }
2367: %all_library_servers = (%library_servers,%older_library_servers);
1.281 albertel 2368: @Servers_to_contact = sort(keys(%all_library_servers));
1.336 raeburn 2369: foreach my $server (@Servers_to_contact) {
2370: my %possdoms;
2371: map { $possdoms{$_}=1; } &Apache::lonnet::machine_domains($all_library_servers{$server});
2372: $domains_by_server{$server} =
2373: join(',',sort(&Apache::lonnet::machine_domains($all_library_servers{$server})));
2374: }
1.144 matthew 2375: }
2376: my %Server_status;
1.214 matthew 2377: #
2378: # Check on the mysql table we will use to store results.
1.243 albertel 2379: my $table =$env{'form.table'};
1.150 matthew 2380: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.286 albertel 2381: $r->print("Unable to determine table id to save search results in.".
1.256 albertel 2382: "The search has been aborted.".
2383: &Apache::loncommon::end_page());
1.147 matthew 2384: return;
2385: }
2386: my $table_status = &Apache::lonmysql::check_table($table);
2387: if (! defined($table_status)) {
1.256 albertel 2388: $r->print("Unable to determine status of table.".
2389: &Apache::loncommon::end_page());
1.147 matthew 2390: &Apache::lonnet::logthis("Bogus table id of $table for ".
1.243 albertel 2391: "$env{'user.name'} @ $env{'user.domain'}");
1.147 matthew 2392: &Apache::lonnet::logthis("lonmysql error = ".
1.144 matthew 2393: &Apache::lonmysql::get_error());
1.147 matthew 2394: return;
2395: }
2396: if (! $table_status) {
1.204 matthew 2397: &Apache::lonnet::logthis("lonmysql error = ".
2398: &Apache::lonmysql::get_error());
2399: &Apache::lonnet::logthis("lonmysql debug = ".
2400: &Apache::lonmysql::get_debug());
2401: &Apache::lonnet::logthis('table status = "'.$table_status.'"');
1.147 matthew 2402: $r->print("The table id,$table, we tried to use is invalid.".
1.256 albertel 2403: "The search has been aborted.".
2404: &Apache::loncommon::end_page());
1.144 matthew 2405: return;
2406: }
1.145 matthew 2407: ##
1.146 matthew 2408: ## Prepare for the big loop.
1.144 matthew 2409: my $hitcountsum;
1.276 raeburn 2410: my %matches;
1.144 matthew 2411: my $server;
2412: my $status;
1.151 matthew 2413: my $revise = &revise_button();
1.299 raeburn 2414: $r->print('<form name="statusform" action="" method="post">'."\n".
2415: '<input type="hidden" name="acts" value="" />'."\n".
2416: '<table border="0"><tr><td>'."\n".
2417: &Apache::loncommon::start_data_table());
1.298 bisitz 2418: $r->print(&Apache::loncommon::start_data_table_header_row()
2419: .'<th>'.&mt('Status').'</th>'
2420: .'<th>'.&mt('Total Matches').'</th>'
2421: .'<th>'.&mt('Time Remaining').'</th>'
1.299 raeburn 2422: .&Apache::loncommon::end_data_table_header_row()
2423: .&Apache::loncommon::start_data_table_row()
1.298 bisitz 2424: .'<td><input type="text" name="status" value="" size="50" readonly="readonly" /></td>'
2425: .'<td><input type="text" name="count" value="" size="10" readonly="readonly" /></td>'
2426: .'<td><input type="text" name="seconds" value="" size="8" readonly="readonly" /></td>'
1.299 raeburn 2427: .&Apache::loncommon::end_data_table_row()
2428: .&Apache::loncommon::end_data_table()
2429: .'</td><td> </td><td>'.$revise.'</td></tr></table></form>');
1.148 matthew 2430: $r->rflush();
1.214 matthew 2431: &reset_timing();
2432: &update_seconds($r);
2433: &update_status($r,&mt('contacting [_1]',$Servers_to_contact[0]));
2434: while (&time_left() &&
1.144 matthew 2435: ((@Servers_to_contact) || keys(%Server_status))) {
1.214 matthew 2436: &update_seconds($r);
2437: #
2438: # Send out a search request
1.144 matthew 2439: if (@Servers_to_contact) {
2440: # Contact one server
2441: my $server = shift(@Servers_to_contact);
1.214 matthew 2442: &update_status($r,&mt('contacting [_1]',$server));
1.144 matthew 2443: my $reply=&Apache::lonnet::metadata_query($query,$customquery,
1.336 raeburn 2444: $customshow,[$server],\%domains_by_server);
1.144 matthew 2445: ($server) = keys(%$reply);
2446: $Server_status{$server} = $reply->{$server};
2447: } else {
1.150 matthew 2448: # wait a sec. to give time for files to be written
2449: # This sleep statement is here instead of outside the else
2450: # block because we do not want to pause if we have servers
2451: # left to contact.
1.183 matthew 2452: if (scalar (keys(%Server_status))) {
2453: &update_status($r,
1.214 matthew 2454: &mt('waiting on [_1]',join(' ',keys(%Server_status))));
1.183 matthew 2455: }
1.150 matthew 2456: sleep(1);
1.144 matthew 2457: }
1.159 matthew 2458: #
2459: # Loop through the servers we have contacted but do not
2460: # have results from yet, looking for results.
1.228 matthew 2461: foreach my $server (keys(%Server_status)) {
1.150 matthew 2462: last if ($connection->aborted());
1.214 matthew 2463: &update_seconds($r);
1.228 matthew 2464: my $status = $Server_status{$server};
1.144 matthew 2465: if ($status eq 'con_lost') {
2466: delete ($Server_status{$server});
2467: next;
2468: }
1.276 raeburn 2469: $status=~s|/||g;
1.330 foxr 2470:
2471:
2472:
2473: my $datafile=LONCAPA::tempdir().$status;
1.144 matthew 2474: if (-e $datafile && ! -e "$datafile.end") {
1.214 matthew 2475: &update_status($r,&mt('Receiving results from [_1]',$server));
1.144 matthew 2476: next;
2477: }
1.150 matthew 2478: last if ($connection->aborted());
1.144 matthew 2479: if (-e "$datafile.end") {
1.214 matthew 2480: &update_status($r,&mt('Reading results from [_1]',$server));
1.144 matthew 2481: if (-z "$datafile") {
2482: delete($Server_status{$server});
2483: next;
2484: }
2485: my $fh;
2486: if (!($fh=Apache::File->new($datafile))) {
1.146 matthew 2487: $r->print("Unable to open search results file for ".
1.145 matthew 2488: "server $server. Omitting from search");
1.150 matthew 2489: delete($Server_status{$server});
2490: next;
1.144 matthew 2491: }
2492: # Read in the whole file.
2493: while (my $result = <$fh>) {
1.150 matthew 2494: last if ($connection->aborted());
1.214 matthew 2495: #
2496: # Records are stored one per line
1.144 matthew 2497: chomp($result);
1.214 matthew 2498: next if (! $result);
2499: #
1.144 matthew 2500: # Parse the result.
1.276 raeburn 2501: my %Fields = &parse_raw_result($result,$server,$tabletype);
1.144 matthew 2502: $Fields{'hostname'} = $server;
1.214 matthew 2503: #
2504: # Skip based on copyright
1.144 matthew 2505: next if (! ©right_check(\%Fields));
1.248 www 2506:
1.276 raeburn 2507: if ($area eq 'portfolio') {
2508: next if (defined($matches{$Fields{'url'}}));
2509: # Skip if inaccessible
2510: next if (!&Apache::lonnet::portfolio_access($Fields{'url'}));
2511: $matches{$Fields{'url'}} = 1;
2512: }
1.214 matthew 2513: #
1.144 matthew 2514: # Store the result in the mysql database
2515: my $result = &Apache::lonmysql::store_row($table,\%Fields);
2516: if (! defined($result)) {
1.146 matthew 2517: $r->print(&Apache::lonmysql::get_error());
1.144 matthew 2518: }
1.214 matthew 2519: #
1.144 matthew 2520: $hitcountsum ++;
1.214 matthew 2521: &update_seconds($r);
1.150 matthew 2522: if ($hitcountsum % 50 == 0) {
2523: &update_count_status($r,$hitcountsum);
2524: }
1.214 matthew 2525: }
1.144 matthew 2526: $fh->close();
2527: # $server is only deleted if the results file has been
2528: # found and (successfully) opened. This may be a bad idea.
2529: delete($Server_status{$server});
2530: }
1.150 matthew 2531: last if ($connection->aborted());
1.148 matthew 2532: &update_count_status($r,$hitcountsum);
1.144 matthew 2533: }
1.150 matthew 2534: last if ($connection->aborted());
1.214 matthew 2535: &update_seconds($r);
1.144 matthew 2536: }
1.313 bisitz 2537: &update_status($r,&mt('Search Complete on Server [_1]',$server));
1.214 matthew 2538: &update_seconds($r);
1.204 matthew 2539: #
1.214 matthew 2540: &Apache::lonmysql::disconnect_from_db(); # This is unneccessary
1.204 matthew 2541: #
1.144 matthew 2542: # We have run out of time or run out of servers to talk to and
1.214 matthew 2543: # results to get, so let the client know the top frame needs to be
2544: # loaded from /adm/searchcat
1.256 albertel 2545: $r->print(&Apache::loncommon::end_page());
1.267 www 2546: # if ($env{'form.catalogmode'} ne 'import') {
1.313 bisitz 2547: $r->print(<<SCRIPT);
2548: <script>
2549: window.location='/adm/searchcat?phase=sort&persistent_db_id=$env{'form.persistent_db_id'}';
2550: </script>
2551: SCRIPT
1.224 matthew 2552: # }
1.144 matthew 2553: return;
2554: }
2555:
2556: ######################################################################
2557: ######################################################################
1.204 matthew 2558:
1.144 matthew 2559: =pod
2560:
1.204 matthew 2561: =item &prev_next_buttons()
2562:
2563: Returns html for the previous and next buttons on the search results page.
1.144 matthew 2564:
2565: =cut
2566:
2567: ######################################################################
2568: ######################################################################
1.146 matthew 2569: sub prev_next_buttons {
1.145 matthew 2570: my ($current_min,$show,$total,$parms) = @_;
2571: return '' if ($show eq 'all'); # No links if you get them all at once.
1.214 matthew 2572: #
1.223 matthew 2573: # Create buttons
1.313 bisitz 2574: return '<p class="LC_nobreak">'
2575: .'<input type="submit" name="prev" value="<"'
2576: .' title="'.&mt('Previous').'" />'
2577: .' '
2578: .'<input type="submit" name="reload" value="'.&mt('Reload').'" />'
2579: .' '
2580: .'<input type="submit" name="next" value=">"'
2581: .' title="'.&mt('Next').'" />'
2582: .'</p>';
1.144 matthew 2583: }
1.204 matthew 2584:
1.144 matthew 2585: ######################################################################
2586: ######################################################################
2587:
2588: =pod
2589:
1.204 matthew 2590: =item &display_results()
2591:
2592: Prints the results out for selection and perusal.
1.144 matthew 2593:
2594: =cut
2595:
2596: ######################################################################
2597: ######################################################################
2598: sub display_results {
1.276 raeburn 2599: my ($r,$importbutton,$closebutton,$diropendb,$area) = @_;
1.150 matthew 2600: my $connection = $r->connection;
2601: $r->print(&search_results_header($importbutton,$closebutton));
1.144 matthew 2602: ##
2603: ## Set viewing function
2604: ##
1.243 albertel 2605: my $viewfunction = $Views{$env{'form.viewselect'}};
1.144 matthew 2606: if (!defined($viewfunction)) {
1.312 bisitz 2607: $r->print('<p class="LC_error">'
2608: .&mt('Internal Error - Bad view selected.')
2609: .'</p>'."\n");
1.144 matthew 2610: $r->rflush();
2611: return;
2612: }
2613: ##
1.158 matthew 2614: ## $checkbox_num is a count of the number of checkboxes output on the
1.267 www 2615: ## page this is used only during catalogmode=import.
1.158 matthew 2616: my $checkbox_num = 0;
2617: ##
1.144 matthew 2618: ## Get the catalog controls setup
2619: ##
1.146 matthew 2620: my $action = "/adm/searchcat?phase=results";
2621: ##
1.267 www 2622: ## Deal with import by opening the import db file.
2623: if ($env{'form.catalogmode'} eq 'import') {
1.146 matthew 2624: if (! tie(%groupsearch_db,'GDBM_File',$diropendb,
1.148 matthew 2625: &GDBM_WRCREAT(),0640)) {
1.312 bisitz 2626: $r->print('<p class="LC_error">'.
2627: &mt('Unable to save import results.').
2628: '</p>'.
2629: '</form>'.
1.256 albertel 2630: &Apache::loncommon::end_page());
1.146 matthew 2631: $r->rflush();
2632: return;
2633: }
1.144 matthew 2634: }
1.145 matthew 2635: ##
2636: ## Prepare the table for querying
1.243 albertel 2637: my $table = $env{'form.table'};
1.151 matthew 2638: return if (! &ensure_db_and_table($r,$table));
1.145 matthew 2639: ##
2640: ## Get the number of results
2641: my $total_results = &Apache::lonmysql::number_of_rows($table);
2642: if (! defined($total_results)) {
1.312 bisitz 2643: $r->print('<p class="LC_error">'.
2644: &mt('A MySQL error has occurred.').
2645: '</p>'.
2646: '</form>'.
1.256 albertel 2647: &Apache::loncommon::end_page());
1.145 matthew 2648: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2649: " of rows in table ".$table);
2650: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2651: return;
2652: }
2653: ##
2654: ## Determine how many results we need to get
1.243 albertel 2655: $env{'form.start'} = 1 if (! exists($env{'form.start'}));
2656: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
2657: if (exists($env{'form.prev'})) {
2658: $env{'form.start'} -= $env{'form.show'};
2659: } elsif (exists($env{'form.next'})) {
2660: $env{'form.start'} += $env{'form.show'};
2661: }
2662: $env{'form.start'} = 1 if ($env{'form.start'}<1);
2663: $env{'form.start'} = $total_results if ($env{'form.start'}>$total_results);
2664: my $min = $env{'form.start'};
1.145 matthew 2665: my $max;
1.243 albertel 2666: if ($env{'form.show'} eq 'all') {
1.145 matthew 2667: $max = $total_results ;
2668: } else {
1.243 albertel 2669: $max = $min + $env{'form.show'} - 1;
1.146 matthew 2670: $max = $total_results if ($max > $total_results);
1.145 matthew 2671: }
2672: ##
1.223 matthew 2673: ## Output form elements
2674: $r->print(&hidden_field('table').
2675: &hidden_field('phase').
2676: &hidden_field('persistent_db_id').
1.276 raeburn 2677: &hidden_field('start').
2678: &hidden_field('area')
1.223 matthew 2679: );
1.232 matthew 2680: #
2681: # Build sorting selector
1.241 matthew 2682: my @fields =
2683: (
2684: {key=>'default' },
2685: {key=>'title' },
2686: {key =>'author' },
2687: {key =>'subject'},
2688: {key =>'url',desc=>'URL'},
2689: {key =>'keywords'},
2690: {key =>'language'},
2691: {key =>'creationdate'},
2692: {key =>'lastrevisiondate'},
2693: {key =>'owner'},
2694: {key =>'copyright'},
2695: {key =>'authorspace'},
2696: {key =>'lowestgradelevel'},
2697: {key =>'highestgradelevel'},
2698: {key =>'standards',desc=>'Standards'},
1.276 raeburn 2699: );
2700: if ($area eq 'portfolio') {
2701: push(@fields,
2702: (
2703: {key => 'scope'},
2704: {key => 'keynum'},
2705: ));
2706: } else {
2707: push(@fields,
2708: (
1.241 matthew 2709: {key =>'count',desc=>'Number of accesses'},
2710: {key =>'stdno',desc=>'Students Attempting'},
2711: {key =>'avetries',desc=>'Average Number of Tries'},
2712: {key =>'difficulty',desc=>'Mean Degree of Difficulty'},
2713: {key =>'disc',desc=>'Mean Degree of Discrimination'},
2714: {key =>'clear',desc=>'Evaluation: Clear'},
2715: {key =>'technical',desc=>'Evaluation: Technically Correct'},
2716: {key =>'correct',desc=>'Evaluation: Material is Correct'},
2717: {key =>'helpful',desc=>'Evaluation: Material is Helpful'},
2718: {key =>'depth',desc=>'Evaluation: Material has Depth'},
1.276 raeburn 2719: ));
2720: }
1.241 matthew 2721: my %fieldnames = &Apache::lonmeta::fieldnames();
2722: my @field_order;
2723: foreach my $field_data (@fields) {
2724: push(@field_order,$field_data->{'key'});
2725: if (! exists($field_data->{'desc'})) {
2726: $field_data->{'desc'}=$fieldnames{$field_data->{'key'}};
2727: } else {
2728: if (! defined($field_data->{'desc'})) {
2729: $field_data->{'desc'} = ucfirst($field_data->{'key'});
2730: }
2731: $field_data->{'desc'} = &mt($field_data->{'desc'});
2732: }
2733: }
2734: my %sort_fields = map {$_->{'key'},$_->{'desc'}} @fields;
2735: $sort_fields{'select_form_order'} = \@field_order;
1.248 www 2736: $env{'form.sortorder'} = 'desc' if (! exists($env{'form.sortorder'}));
1.276 raeburn 2737: if (! exists($env{'form.sortfield'})) {
2738: if ($area eq 'portfolio') {
2739: $env{'form.sortfield'} = 'owner';
2740: } else {
2741: $env{'form.sortfield'} = 'count';
2742: }
2743: }
1.248 www 2744: if (! exists($env{'form.sortorder'})) {
2745: if ($env{'form.sortfield'}=~/^(count|stdno|disc|clear|technical|correct|helpful)$/) {
2746: $env{'form.sortorder'}='desc';
2747: } else {
2748: $env{'form.sortorder'}='asc';
2749: }
2750: }
1.313 bisitz 2751: my $sortform = '<span class="LC_nobreak">'
2752: .&mt('Sort by:').' '
2753: .&Apache::loncommon::select_form($env{'form.sortfield'},
1.232 matthew 2754: 'sortfield',
1.324 raeburn 2755: \%sort_fields)
1.313 bisitz 2756: .' '
2757: .&Apache::loncommon::select_form($env{'form.sortorder'},
1.241 matthew 2758: 'sortorder',
1.324 raeburn 2759: {asc =>&mt('Ascending'),
1.241 matthew 2760: desc=>&mt('Descending')
1.324 raeburn 2761: })
1.313 bisitz 2762: .'</span>';
1.223 matthew 2763: ##
1.313 bisitz 2764: ## Display links for 'prev' and 'next' pages (if necessary) and Display Options
2765: $r->print('<fieldset>'."\n"
2766: .'<legend>'.&mt('Display Options').'</legend>'."\n"
2767: .$sortform
2768: .' '
2769: .&viewoptions()
2770: .'</fieldset>'
2771: .&prev_next_buttons($min,$env{'form.show'},$total_results)
2772: );
2773:
1.150 matthew 2774: if ($total_results == 0) {
1.256 albertel 2775: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2" />'.
1.313 bisitz 2776: '<p class="LC_info">'.&mt('There are currently no results.').'</p>'.
1.256 albertel 2777: "</form>".
2778: &Apache::loncommon::end_page());
1.150 matthew 2779: return;
2780: } else {
1.312 bisitz 2781: $r->print('<div>'.
1.232 matthew 2782: mt('Results [_1] to [_2] out of [_3]',
2783: $min,$max,$total_results).
1.312 bisitz 2784: "</div>\n");
1.150 matthew 2785: }
1.145 matthew 2786: ##
2787: ## Get results from MySQL table
1.232 matthew 2788: my $sort_command = 'id>='.$min.' AND id<='.$max;
1.241 matthew 2789: my $order;
1.244 albertel 2790: if (exists($env{'form.sortorder'})) {
2791: if ($env{'form.sortorder'} eq 'asc') {
1.241 matthew 2792: $order = 'ASC';
1.244 albertel 2793: } elsif ($env{'form.sortorder'} eq 'desc') {
1.241 matthew 2794: $order = 'DESC';
2795: } else {
2796: $order = '';
2797: }
2798: } else {
2799: $order = '';
2800: }
1.244 albertel 2801: if ($env{'form.sortfield'} ne 'default' &&
2802: exists($sort_fields{$env{'form.sortfield'}})) {
2803: $sort_command = $env{'form.sortfield'}.' IS NOT NULL '.
2804: 'ORDER BY '.$env{'form.sortfield'}.' '.$order.
1.249 www 2805: ' LIMIT '.($min-1).','.($max-$min+1);
1.232 matthew 2806: }
2807: my @Results = &Apache::lonmysql::get_rows($table,$sort_command);
1.145 matthew 2808: ##
2809: ## Loop through the results and output them.
1.276 raeburn 2810: my $tabletype = 'metadata';
2811: if ($area eq 'portfolio') {
2812: $tabletype = 'portfolio_search';
2813: }
1.312 bisitz 2814: $r->print(&Apache::loncommon::start_data_table());
1.144 matthew 2815: foreach my $row (@Results) {
1.150 matthew 2816: if ($connection->aborted()) {
1.162 www 2817: &cleanup();
1.150 matthew 2818: return;
2819: }
1.276 raeburn 2820: my %Fields = %{&parse_row($tabletype,@$row)};
1.312 bisitz 2821: my $output;
1.210 matthew 2822: if (! defined($Fields{'title'}) || $Fields{'title'} eq '') {
2823: $Fields{'title'} = 'Untitled';
2824: }
1.158 matthew 2825: my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'},
2826: $Fields{'id'},$checkbox_num++);
1.144 matthew 2827: # Render the result into html
1.150 matthew 2828: $output.= &$viewfunction($prefix,%Fields);
1.145 matthew 2829: # Print them out as they come in.
1.312 bisitz 2830: $r->print(&Apache::loncommon::start_data_table_row()
2831: .'<td>'
2832: .$output
2833: .'</td>'
2834: .&Apache::loncommon::end_data_table_row()
2835: );
1.144 matthew 2836: $r->rflush();
2837: }
1.312 bisitz 2838: $r->print(&Apache::loncommon::end_data_table());
1.144 matthew 2839: if (@Results < 1) {
1.312 bisitz 2840: $r->print('<p class="LC_info">'
2841: .&mt('There were no results matching your query.')
2842: .'</p>');
1.147 matthew 2843: } else {
1.313 bisitz 2844: $r->print(
2845: &prev_next_buttons($min,$env{'form.show'},$total_results,
1.243 albertel 2846: "table=".$env{'form.table'}.
1.309 bisitz 2847: "&phase=results".
2848: "&persistent_db_id=".
1.243 albertel 2849: $env{'form.persistent_db_id'})
1.313 bisitz 2850: );
1.144 matthew 2851: }
1.256 albertel 2852: $r->print("</form>".&Apache::loncommon::end_page());
1.144 matthew 2853: $r->rflush();
1.150 matthew 2854: untie %groupsearch_db if (tied(%groupsearch_db));
1.144 matthew 2855: return;
2856: }
2857:
2858: ######################################################################
2859: ######################################################################
2860:
2861: =pod
2862:
1.158 matthew 2863: =item &catalogmode_output($title,$url,$fnum,$checkbox_num)
1.145 matthew 2864:
2865: Returns html needed for the various catalog modes. Gets inputs from
1.243 albertel 2866: $env{'form.catalogmode'}. Stores data in %groupsearch_db.
1.145 matthew 2867:
2868: =cut
2869:
2870: ######################################################################
2871: ######################################################################
2872: sub catalogmode_output {
2873: my $output = '';
1.158 matthew 2874: my ($title,$url,$fnum,$checkbox_num) = @_;
1.243 albertel 2875: if ($env{'form.catalogmode'} eq 'interactive') {
1.150 matthew 2876: $title=~ s/\'/\\\'/g;
1.243 albertel 2877: if ($env{'form.catalogmode'} eq 'interactive') {
1.145 matthew 2878: $output.=<<END
1.287 albertel 2879: <font size='-1'><input type="button" name="returnvalues" value="select"
1.313 bisitz 2880: onclick="javascript:select_data('$title','$url')" />
1.145 matthew 2881: </font>
2882: END
2883: }
1.267 www 2884: } elsif ($env{'form.catalogmode'} eq 'import') {
1.145 matthew 2885: $groupsearch_db{"pre_${fnum}_link"}=$url;
2886: $groupsearch_db{"pre_${fnum}_title"}=$title;
2887: $output.=<<END;
2888: <font size='-1'>
1.287 albertel 2889: <input type="checkbox" name="returnvalues" value="select"
1.313 bisitz 2890: onclick="javascript:queue($checkbox_num,$fnum)" />
1.145 matthew 2891: </font>
2892: END
2893: }
2894: return $output;
2895: }
2896: ######################################################################
2897: ######################################################################
2898:
2899: =pod
2900:
1.204 matthew 2901: =item &parse_row()
1.144 matthew 2902:
2903: Parse a row returned from the database.
2904:
2905: =cut
2906:
2907: ######################################################################
2908: ######################################################################
2909: sub parse_row {
1.276 raeburn 2910: my ($tabletype,@Row) = @_;
1.144 matthew 2911: my %Fields;
1.204 matthew 2912: if (! scalar(@Datatypes)) {
1.276 raeburn 2913: &set_up_table_structure($tabletype);
1.204 matthew 2914: }
1.144 matthew 2915: for (my $i=0;$i<=$#Row;$i++) {
1.265 www 2916: $Fields{$Datatypes[$i]->{'name'}}=&unescape($Row[$i]);
1.144 matthew 2917: }
2918: $Fields{'language'} =
1.198 www 2919: &Apache::loncommon::languagedescription($Fields{'language'});
1.144 matthew 2920: $Fields{'copyrighttag'} =
2921: &Apache::loncommon::copyrightdescription($Fields{'copyright'});
2922: $Fields{'mimetag'} =
2923: &Apache::loncommon::filedescription($Fields{'mime'});
2924: return \%Fields;
2925: }
1.126 matthew 2926:
2927: ###########################################################
2928: ###########################################################
2929:
2930: =pod
2931:
2932: =item &parse_raw_result()
2933:
2934: Takes a line from the file of results and parse it. Returns a hash
1.198 www 2935: with keys according to column labels
1.126 matthew 2936:
2937: In addition, the following tags are set by calling the appropriate
1.198 www 2938: lonnet function: 'language', 'copyrighttag', 'mimetag'.
1.126 matthew 2939:
2940: The 'title' field is set to "Untitled" if the title field is blank.
2941:
2942: 'abstract' and 'keywords' are truncated to 200 characters.
2943:
2944: =cut
2945:
2946: ###########################################################
2947: ###########################################################
2948: sub parse_raw_result {
1.276 raeburn 2949: my ($result,$hostname,$tabletype) = @_;
1.204 matthew 2950: # conclude from self to others regarding fields
1.206 matthew 2951: my %Fields=&LONCAPA::lonmetadata::metadata_col_to_hash
1.276 raeburn 2952: ($tabletype,
2953: map {
1.265 www 2954: &unescape($_);
1.276 raeburn 2955: } (split(/\,/,$result)) );
1.126 matthew 2956: return %Fields;
2957: }
2958:
2959: ###########################################################
2960: ###########################################################
2961:
2962: =pod
2963:
2964: =item &handle_custom_fields()
2965:
2966: =cut
2967:
2968: ###########################################################
2969: ###########################################################
2970: sub handle_custom_fields {
2971: my @results = @{shift()};
2972: my $customshow='';
2973: my $extrashow='';
2974: my @customfields;
1.243 albertel 2975: if ($env{'form.customshow'}) {
2976: $customshow=$env{'form.customshow'};
1.126 matthew 2977: $customshow=~s/[^\w\s]//g;
2978: my @fields=map {
2979: "<font color=\"#008000\">$_:</font><!-- $_ -->";
2980: } split(/\s+/,$customshow);
2981: @customfields=split(/\s+/,$customshow);
2982: if ($customshow) {
2983: $extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n";
2984: }
2985: }
2986: my $customdata='';
2987: my %customhash;
2988: foreach my $result (@results) {
2989: if ($result=~/^(custom\=.*)$/) { # grab all custom metadata
2990: my $tmp=$result;
2991: $tmp=~s/^custom\=//;
1.265 www 2992: my ($k,$v)=map {&unescape($_);
1.126 matthew 2993: } split(/\,/,$tmp);
2994: $customhash{$k}=$v;
2995: }
2996: }
2997: return ($extrashow,\@customfields,\%customhash);
1.41 harris41 2998: }
2999:
1.122 matthew 3000: ######################################################################
3001: ######################################################################
3002:
1.125 matthew 3003: =pod
3004:
1.204 matthew 3005: =item &search_results_header()
1.125 matthew 3006:
1.130 matthew 3007: Output the proper html headers and javascript code to deal with different
3008: calling modes.
3009:
1.243 albertel 3010: Takes most inputs directly from %env, except $mode.
1.130 matthew 3011:
3012: =over 4
3013:
3014: =item $mode is either (at this writing) 'Basic' or 'Advanced'
3015:
3016: =back
1.126 matthew 3017:
1.130 matthew 3018: The following environment variables are checked:
1.126 matthew 3019:
3020: =over 4
3021:
3022: =item 'form.catalogmode'
3023:
1.267 www 3024: Checked for 'interactive' and 'import'.
1.126 matthew 3025:
3026: =item 'form.mode'
3027:
3028: Checked for existance & 'edit' mode.
3029:
3030: =item 'form.form'
3031:
1.191 albertel 3032: Contains the name of the form that has the input fields to set
3033:
1.126 matthew 3034: =item 'form.element'
3035:
1.191 albertel 3036: the name of the input field to put the URL into
3037:
3038: =item 'form.titleelement'
3039:
3040: the name of the input field to put the title into
3041:
1.126 matthew 3042: =back
3043:
1.125 matthew 3044: =cut
3045:
3046: ######################################################################
3047: ######################################################################
3048: sub search_results_header {
1.150 matthew 3049: my ($importbutton,$closebutton) = @_;
1.256 albertel 3050:
1.257 albertel 3051: my $js;
1.125 matthew 3052: # output beginning of search page
3053: # conditional output of script functions dependent on the mode in
3054: # which the search was invoked
1.243 albertel 3055: if ($env{'form.catalogmode'} eq 'interactive'){
3056: if (! exists($env{'form.mode'}) || $env{'form.mode'} ne 'edit') {
1.257 albertel 3057: $js.=<<SCRIPT;
1.125 matthew 3058: <script type="text/javascript">
1.313 bisitz 3059: // <![CDATA[
1.125 matthew 3060: function select_data(title,url) {
3061: changeTitle(title);
3062: changeURL(url);
1.150 matthew 3063: parent.close();
1.125 matthew 3064: }
3065: function changeTitle(val) {
1.153 matthew 3066: if (parent.opener.inf.document.forms.resinfo.elements.t) {
3067: parent.opener.inf.document.forms.resinfo.elements.t.value=val;
1.125 matthew 3068: }
3069: }
3070: function changeURL(val) {
1.153 matthew 3071: if (parent.opener.inf.document.forms.resinfo.elements.u) {
3072: parent.opener.inf.document.forms.resinfo.elements.u.value=val;
1.125 matthew 3073: }
3074: }
1.313 bisitz 3075: // ]]>
1.125 matthew 3076: </script>
3077: SCRIPT
1.243 albertel 3078: } elsif ($env{'form.mode'} eq 'edit') {
3079: my $form = $env{'form.form'};
3080: my $element = $env{'form.element'};
3081: my $titleelement = $env{'form.titleelement'};
1.191 albertel 3082: my $changetitle;
3083: if (!$titleelement) {
3084: $changetitle='function changeTitle(val) {}';
3085: } else {
3086: $changetitle=<<END;
3087: function changeTitle(val) {
3088: if (parent.targetwin.document) {
3089: parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val;
3090: } else {
3091: var url = 'forms[\"$form\"].elements[\"$titleelement\"].value';
3092: alert("Unable to transfer data to "+url);
3093: }
3094: }
3095: END
3096: }
3097:
1.257 albertel 3098: $js.=<<SCRIPT;
1.125 matthew 3099: <script type="text/javascript">
1.313 bisitz 3100: // <![CDATA[
1.125 matthew 3101: function select_data(title,url) {
3102: changeURL(url);
1.191 albertel 3103: changeTitle(title);
1.150 matthew 3104: parent.close();
1.125 matthew 3105: }
1.191 albertel 3106: $changetitle
1.125 matthew 3107: function changeURL(val) {
1.150 matthew 3108: if (parent.targetwin.document) {
3109: parent.targetwin.document.forms["$form"].elements["$element"].value=val;
1.125 matthew 3110: } else {
3111: var url = 'forms[\"$form\"].elements[\"$element\"].value';
3112: alert("Unable to transfer data to "+url);
3113: }
3114: }
1.313 bisitz 3115: // ]]>
1.125 matthew 3116: </script>
3117: SCRIPT
3118: }
3119: }
1.288 albertel 3120: my $inhibit_menu = "&".&Apache::loncommon::inhibit_menu_check();
1.267 www 3121: $js.=<<SCRIPT if $env{'form.catalogmode'} eq 'import';
1.125 matthew 3122: <script type="text/javascript">
1.313 bisitz 3123: // <![CDATA[
1.158 matthew 3124: function queue(checkbox_num,val) {
1.185 matthew 3125: if (document.forms.results.returnvalues.length != "undefined" &&
3126: typeof(document.forms.results.returnvalues.length) == "number") {
3127: if (document.forms.results.returnvalues[checkbox_num].checked) {
1.270 www 3128: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3129: } else {
1.270 www 3130: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3131: }
1.150 matthew 3132: } else {
1.185 matthew 3133: if (document.forms.results.returnvalues.checked) {
1.270 www 3134: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3135: } else {
1.270 www 3136: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3137: }
1.150 matthew 3138: }
1.125 matthew 3139: }
3140: function select_group() {
1.150 matthew 3141: parent.window.location=
1.323 bisitz 3142: "/adm/groupsort?mode=$env{'form.mode'}&catalogmode=import$inhibit_menu&acts="+
1.270 www 3143: parent.statusframe.document.forms.statusform.elements.acts.value;
1.125 matthew 3144: }
1.313 bisitz 3145: // ]]>
1.125 matthew 3146: </script>
3147: SCRIPT
1.256 albertel 3148:
1.257 albertel 3149: my $start_page = &Apache::loncommon::start_page(undef,$js,
1.331 www 3150: {'only_body' =>1,
3151: 'add_wishlist' =>1});
1.258 albertel 3152: my $result=<<END;
1.257 albertel 3153: $start_page
1.267 www 3154: <form name="results" method="post" action="/adm/searchcat">
1.150 matthew 3155: $importbutton
1.130 matthew 3156: END
1.125 matthew 3157: return $result;
3158: }
3159:
1.150 matthew 3160: sub results_link {
1.309 bisitz 3161: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3162: "&persistent_db_id=".$env{'form.persistent_db_id'};
3163: my $results_link = $basic_link."&phase=results".
3164: "&pause=1"."&start=1";
1.150 matthew 3165: return $results_link;
3166: }
3167:
1.146 matthew 3168: ######################################################################
3169: ######################################################################
3170: sub print_frames_interface {
3171: my $r = shift;
1.309 bisitz 3172: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3173: "&persistent_db_id=".$env{'form.persistent_db_id'};
3174: my $run_search_link = $basic_link."&phase=run_search";
1.150 matthew 3175: my $results_link = &results_link();
1.260 albertel 3176: my $js = <<JS;
3177: <script type="text/javascript">
1.313 bisitz 3178: // <![CDATA[
1.260 albertel 3179: var targetwin = opener;
3180: var queue = '';
1.313 bisitz 3181: // ]]>
1.260 albertel 3182: </script>
3183: JS
1.262 albertel 3184:
3185: my $start_page =
3186: &Apache::loncommon::start_page('LON-CAPA Digital Library Search Results',
3187: $js,
3188: {'frameset' => 1,
3189: 'add_entries' => {
3190: 'rows' => "150,*",},});
3191: my $end_page =
3192: &Apache::loncommon::end_page({'frameset' => 1});
3193:
1.146 matthew 3194: my $result = <<"ENDFRAMES";
1.262 albertel 3195: $start_page
1.146 matthew 3196: <frame name="statusframe" src="$run_search_link">
3197: <frame name="resultsframe" src="$results_link">
1.262 albertel 3198: $end_page
1.146 matthew 3199: ENDFRAMES
3200:
3201: $r->print($result);
3202: return;
3203: }
3204:
3205: ######################################################################
3206: ######################################################################
1.125 matthew 3207:
1.224 matthew 3208: sub has_stat_data {
3209: my ($values) = @_;
3210: if ( (defined($values->{'count'}) && $values->{'count'} ne '') ||
3211: (defined($values->{'stdno'}) && $values->{'stdno'} ne '') ||
3212: (defined($values->{'disc'}) && $values->{'disc'} ne '') ||
3213: (defined($values->{'avetries'}) && $values->{'avetries'} ne '') ||
3214: (defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) {
3215: return 1;
3216: }
3217: return 0;
3218: }
3219:
3220: sub statfields {
3221: return ('count','stdno','disc','avetries','difficulty');
3222: }
3223:
3224: sub has_eval_data {
3225: my ($values) = @_;
3226: if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') ||
3227: (defined($values->{'technical'}) && $values->{'technical'} ne '') ||
3228: (defined($values->{'correct'}) && $values->{'correct'} ne '') ||
3229: (defined($values->{'helpful'}) && $values->{'helpful'} ne '') ||
3230: (defined($values->{'depth'}) && $values->{'depth'} ne '')) {
3231: return 1;
3232: }
3233: return 0;
3234: }
3235:
3236: sub evalfields {
3237: return ('clear','technical','correct','helpful','depth');
3238: }
3239:
3240: ######################################################################
3241: ######################################################################
3242:
1.332 bisitz 3243: sub display_tools {
3244: my ($title, $jumpurl) = @_;
3245: my $result;
3246: # Metadata
3247: $result.=
3248: &Apache::loncommon::modal_link(
3249: $jumpurl.'.meta?inhibitmenu=yes',
3250: '<img class="LC_icon" src="/res/adm/pages/catalog.png" alt="Info" />',
3251: 500,500,'_blank',undef,&mt('Metadata'));
3252: # Stored Links
3253: $result.=
3254: ' <a href="javascript:;"'.
3255: ' onclick="set_wishlistlink('."'$title','$jumpurl'".')" '.
3256: 'title="'.&mt('Save a link for this resource in your personal Stored Links repository').'">'.
3257: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
3258: 'alt="Stored Links" style="width:22px;"/></a>';
3259: return $result;
3260: }
3261:
3262: ######################################################################
3263: ######################################################################
3264:
1.122 matthew 3265: =pod
3266:
3267: =item Metadata Viewing Functions
3268:
3269: Output is a HTML-ified string.
1.204 matthew 3270:
1.122 matthew 3271: Input arguments are title, author, subject, url, keywords, version,
3272: notes, short abstract, mime, language, creation date,
1.126 matthew 3273: last revision date, owner, copyright, hostname, and
1.122 matthew 3274: extra custom metadata to show.
3275:
3276: =over 4
3277:
3278: =item &detailed_citation_view()
3279:
3280: =cut
3281:
3282: ######################################################################
3283: ######################################################################
1.50 harris41 3284: sub detailed_citation_view {
1.150 matthew 3285: my ($prefix,%values) = @_;
1.218 matthew 3286: my $result;
1.247 www 3287: my $jumpurl=$values{'url'};
1.275 albertel 3288: $jumpurl=~s|^/ext/|http://|;
1.332 bisitz 3289: $result .=
3290: '<b>'.$prefix.
1.312 bisitz 3291: '<img src="'.&Apache::loncommon::icon($values{'url'}).'" alt="" />'.' '.
1.288 albertel 3292: '<a href="'.$jumpurl.'?inhibitmenu=yes" '.
1.325 wenzelju 3293: 'target="preview">'.$values{'title'}."</a></b>\n".
1.332 bisitz 3294: &display_tools($values{'title'}, $jumpurl).
3295: "<p>\n".
3296: '<b>'.$values{'author'}.'</b>,'.
1.218 matthew 3297: ' <i>'.$values{'owner'}.'</i><br />';
3298: foreach my $field
3299: (
1.223 matthew 3300: { name=>'url',
3301: translate => '<b>URL:</b> [_1]',
3302: special => 'url link',},
1.218 matthew 3303: { name=>'subject',
3304: translate => '<b>Subject:</b> [_1]',},
3305: { name=>'keywords',
3306: translate => '<b>Keywords:</b> [_1]',},
3307: { name=>'notes',
3308: translate => '<b>Notes:</b> [_1]',},
3309: { name=>'mimetag',
3310: translate => '<b>MIME Type:</b> [_1]',},
3311: { name=>'standards',
3312: translate => '<b>Standards:</b>[_1]',},
3313: { name=>'copyrighttag',
3314: translate => '<b>Copyright/Distribution:</b> [_1]',},
1.223 matthew 3315: { name=>'count',
1.225 matthew 3316: format => "%d",
1.223 matthew 3317: translate => '<b>Access Count:</b> [_1]',},
1.218 matthew 3318: { name=>'stdno',
1.225 matthew 3319: format => "%d",
1.218 matthew 3320: translate => '<b>Number of Students:</b> [_1]',},
3321: { name=>'avetries',
1.225 matthew 3322: format => "%.2f",
1.218 matthew 3323: translate => '<b>Average Tries:</b> [_1]',},
3324: { name=>'disc',
1.225 matthew 3325: format => "%.2f",
1.218 matthew 3326: translate => '<b>Degree of Discrimination:</b> [_1]',},
3327: { name=>'difficulty',
1.225 matthew 3328: format => "%.2f",
1.218 matthew 3329: translate => '<b>Degree of Difficulty:</b> [_1]',},
3330: { name=>'clear',
1.225 matthew 3331: format => "%.2f",
1.218 matthew 3332: translate => '<b>Clear:</b> [_1]',},
3333: { name=>'depth',
1.225 matthew 3334: format => "%.2f",
1.218 matthew 3335: translate => '<b>Depth:</b> [_1]',},
3336: { name=>'helpful',
1.225 matthew 3337: format => "%.2f",
1.218 matthew 3338: translate => '<b>Helpful:</b> [_1]',},
3339: { name=>'correct',
1.225 matthew 3340: format => "%.2f",
1.224 matthew 3341: translate => '<b>Correct:</b> [_1]',},
1.218 matthew 3342: { name=>'technical',
1.225 matthew 3343: format => "%.2f",
1.218 matthew 3344: translate => '<b>Technical:</b> [_1]',},
1.225 matthew 3345: { name=>'comefrom_list',
3346: type => 'list',
3347: translate => 'Resources that lead up to this resource in maps',},
3348: { name=>'goto_list',
3349: type => 'list',
3350: translate => 'Resources that follow this resource in maps',},
1.226 matthew 3351: { name=>'sequsage_list',
1.225 matthew 3352: type => 'list',
3353: translate => 'Resources using or importing resource',},
1.218 matthew 3354: ) {
1.225 matthew 3355: next if (! exists($values{$field->{'name'}}) ||
3356: $values{$field->{'name'}} eq '');
3357: if (exists($field->{'type'}) && $field->{'type'} eq 'list') {
1.267 www 3358: $result .= '<b>'.&mt($field->{'translate'}).'</b>';
1.225 matthew 3359: foreach my $item (split(',',$values{$field->{'name'}})){
1.287 albertel 3360: $item = &Apache::lonnet::clutter($item);
1.319 bisitz 3361: $result .= '<br />'.&display_url($item,1).'<br />';
1.225 matthew 3362: }
3363: } elsif (exists($field->{'format'}) && $field->{'format'} ne ''){
3364: $result.= &mt($field->{'translate'},
3365: sprintf($field->{'format'},
1.230 matthew 3366: $values{$field->{'name'}}))."<br />\n";
1.225 matthew 3367: } else {
1.223 matthew 3368: if ($field->{'special'} eq 'url link') {
1.319 bisitz 3369: $result .= '<br />'.&display_url($jumpurl,1).'<br />';
1.223 matthew 3370: } else {
3371: $result.= &mt($field->{'translate'},
3372: $values{$field->{'name'}});
3373: }
3374: $result .= "<br />\n";
1.225 matthew 3375: }
1.223 matthew 3376: }
3377: $result .= "</p>";
3378: if (exists($values{'extrashow'}) && $values{'extrashow'} ne '') {
3379: $result .= '<p>'.$values{'extrashow'}.'</p>';
3380: }
3381: if (exists($values{'shortabstract'}) && $values{'shortabstract'} ne '') {
3382: $result .= '<p>'.$values{'shortabstract'}.'</p>';
1.218 matthew 3383: }
1.50 harris41 3384: return $result;
1.222 matthew 3385: }
3386:
1.255 www 3387: sub detailed_citation_preview {
3388: my ($prefix,%values)=@_;
1.312 bisitz 3389: return &detailed_citation_view($prefix,%values).
1.255 www 3390: '</td><td>'.
1.312 bisitz 3391: &Apache::lonindexer::showpreview($values{'url'});
1.255 www 3392: }
3393:
3394:
1.222 matthew 3395: ######################################################################
3396: ######################################################################
3397:
1.122 matthew 3398: =pod
3399:
3400: =item &summary_view()
3401:
3402: =cut
3403: ######################################################################
3404: ######################################################################
1.50 harris41 3405: sub summary_view {
1.150 matthew 3406: my ($prefix,%values) = @_;
1.192 albertel 3407: my $icon=&Apache::loncommon::icon($values{'url'});
1.312 bisitz 3408: my $result=qq{$prefix<img src="$icon" alt="" />};
1.244 albertel 3409: if (exists($env{'form.sortfield'}) &&
3410: $env{'form.sortfield'} !~ /^(default|
1.241 matthew 3411: author|
3412: url|
3413: title|
3414: owner|
3415: lastrevisiondate|
3416: copyright)$/x) {
1.244 albertel 3417: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3418: if (! defined($tmp)) { $tmp = 'undefined'; }
3419: $result .= ' '.$tmp.' ';
3420: }
1.247 www 3421: my $jumpurl=$values{'url'};
1.287 albertel 3422: $jumpurl=~s|^/ext/|http://|;
1.319 bisitz 3423: my $link = '<br />'.&display_url($jumpurl,1).'<br />';
1.332 bisitz 3424: $result .=
3425: '<a href="'.$jumpurl.'?inhibitmenu=yes"'.
3426: ' target="preview">'.$values{'title'}.'</a>'.
3427: &display_tools($values{'title'}, $jumpurl).<<END;
1.325 wenzelju 3428: <br />
1.312 bisitz 3429: $link<br />
1.241 matthew 3430: $values{'author'}, $values{'owner'} -- $values{'lastrevisiondate'}<br />
1.126 matthew 3431: $values{'copyrighttag'}<br />
3432: $values{'extrashow'}
1.50 harris41 3433: END
3434: return $result;
3435: }
3436:
1.255 www 3437: sub summary_preview {
3438: my ($prefix,%values)=@_;
1.312 bisitz 3439: return &summary_view($prefix,%values).
1.255 www 3440: '</td><td>'.
1.312 bisitz 3441: &Apache::lonindexer::showpreview($values{'url'});
1.255 www 3442: }
3443:
1.122 matthew 3444: ######################################################################
3445: ######################################################################
3446:
3447: =pod
3448:
1.150 matthew 3449: =item &compact_view()
3450:
3451: =cut
3452:
3453: ######################################################################
3454: ######################################################################
3455: sub compact_view {
3456: my ($prefix,%values) = @_;
1.247 www 3457: my $jumpurl=$values{'url'};
1.287 albertel 3458: $jumpurl=~s|^/ext/|http://|;
3459:
1.319 bisitz 3460: my $link = &display_url($jumpurl,1);
1.287 albertel 3461:
1.223 matthew 3462: my $result =
1.306 bisitz 3463: $prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).'" alt="" />';
1.244 albertel 3464: if (exists($env{'form.sortfield'}) &&
3465: $env{'form.sortfield'} !~ /^(default|author|url|title)$/) {
3466: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3467: if (! defined($tmp)) { $tmp = 'undefined'; }
3468: $result .= ' '.$tmp.' ';
3469: }
1.287 albertel 3470: $jumpurl = &HTML::Entities::encode($jumpurl,'<>&"');
3471: $result.=' <span class="LC_nobreak">'.
1.288 albertel 3472: '<a href="'.$jumpurl.'?inhibitmenu=yes" target="preview">'.
1.287 albertel 3473: &HTML::Entities::encode($values{'title'},'<>&"').'</a></span> '.
1.332 bisitz 3474: &display_tools($values{'title'}, $jumpurl).
1.312 bisitz 3475: $link.' <b>'.$values{'author'}.'</b> ('.$values{'domain'}.')';
1.150 matthew 3476: return $result;
3477: }
3478:
1.287 albertel 3479: sub display_url {
1.319 bisitz 3480: my ($url,$skiplast) = @_;
1.287 albertel 3481: my $link;
3482: if ($url=~m|^/ext/|) {
3483: $url=~s|^/ext/|http://|;
3484: $link='<span class="LC_filename">'.$url.'</span>';
3485: } elsif ($url=~m{^(http://|/uploaded/)}) {
3486: $link='<span class="LC_filename">'.$url.'</span>';
3487: } else {
1.319 bisitz 3488: $link=&Apache::lonhtmlcommon::crumbs(
3489: $url,
3490: 'preview',
3491: '',
3492: (($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),
3493: $skiplast).' ';
1.287 albertel 3494: }
3495: return $link;
3496: }
1.150 matthew 3497:
3498: ######################################################################
3499: ######################################################################
3500:
3501: =pod
3502:
1.122 matthew 3503: =item &fielded_format_view()
3504:
3505: =cut
3506:
3507: ######################################################################
3508: ######################################################################
1.50 harris41 3509: sub fielded_format_view {
1.150 matthew 3510: my ($prefix,%values) = @_;
1.192 albertel 3511: my $icon=&Apache::loncommon::icon($values{'url'});
1.222 matthew 3512: my %Translated = &Apache::lonmeta::fieldnames();
1.247 www 3513: my $jumpurl=$values{'url'};
1.275 albertel 3514: $jumpurl=~s|^/ext/|http://|;
1.247 www 3515:
1.50 harris41 3516: my $result=<<END;
1.312 bisitz 3517: $prefix <img src="$icon" alt="" />
1.222 matthew 3518: <dl>
3519: <dt>URL:</dt>
1.288 albertel 3520: <dd><a href="$jumpurl?inhibitmenu=yes"
1.325 wenzelju 3521: target='preview'>$values{'url'}</a>
1.50 harris41 3522: END
1.332 bisitz 3523: $result .=
3524: &display_tools($values{'title'}, $jumpurl).'
3525: </dd>';
1.239 matthew 3526: foreach my $field ('title','author','domain','subject','keywords','notes',
1.222 matthew 3527: 'mimetag','language','creationdate','lastrevisiondate',
3528: 'owner','copyrighttag','hostname','abstract') {
3529: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3530: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3531: }
3532: if (&has_stat_data(\%values)) {
3533: foreach my $field (&statfields()) {
3534: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3535: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3536: }
3537: }
3538: if (&has_eval_data(\%values)) {
3539: foreach my $field (&evalfields()) {
3540: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3541: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3542: }
3543: }
3544: $result .= "</dl>\n";
3545: $result .= $values{'extrashow'};
1.50 harris41 3546: return $result;
3547: }
3548:
1.122 matthew 3549: ######################################################################
3550: ######################################################################
3551:
3552: =pod
3553:
3554: =item &xml_sgml_view()
3555:
3556: =back
3557:
3558: =cut
3559:
3560: ######################################################################
3561: ######################################################################
1.50 harris41 3562: sub xml_sgml_view {
1.150 matthew 3563: my ($prefix,%values) = @_;
1.222 matthew 3564: my $xml = '<LonCapaResource>'."\n";
3565: # The usual suspects
1.239 matthew 3566: foreach my $field ('url','title','author','subject','keywords','notes','domain') {
1.222 matthew 3567: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3568: }
3569: #
3570: $xml .= "<mimeInfo>\n";
3571: foreach my $field ('mime','mimetag') {
3572: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3573: }
3574: $xml .= "</mimeInfo>\n";
3575: #
3576: $xml .= "<languageInfo>\n";
3577: foreach my $field ('language','languagetag') {
3578: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3579: }
3580: $xml .= "</languageInfo>\n";
3581: #
3582: foreach my $field ('creationdate','lastrevisiondate','owner') {
3583: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3584: }
3585: #
3586: $xml .= "<copyrightInfo>\n";
3587: foreach my $field ('copyright','copyrighttag') {
3588: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3589: }
3590: $xml .= "</copyrightInfo>\n";
3591: $xml .= qq{<repositoryLocation>$values{'hostname'}</repositoryLocation>}.
3592: "\n";
3593: $xml .= qq{<shortabstract>$values{'shortabstract'}</shortabstract>}."\n";
3594: #
3595: if (&has_stat_data(\%values)){
3596: $xml .= "<problemstatistics>\n";
3597: foreach my $field (&statfields()) {
3598: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3599: }
3600: $xml .= "</problemstatistics>\n";
3601: }
3602: #
3603: if (&has_eval_data(\%values)) {
3604: $xml .= "<evaluation>\n";
3605: foreach my $field (&evalfields) {
3606: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3607: }
3608: $xml .= "</evaluation>\n";
3609: }
3610: #
3611: $xml .= "</LonCapaResource>\n";
1.212 matthew 3612: $xml = &HTML::Entities::encode($xml,'<>&');
1.50 harris41 3613: my $result=<<END;
1.150 matthew 3614: $prefix
1.56 harris41 3615: <pre>
1.212 matthew 3616: $xml
1.56 harris41 3617: </pre>
1.126 matthew 3618: $values{'extrashow'}
1.50 harris41 3619: END
3620: return $result;
1.60 harris41 3621: }
3622:
1.122 matthew 3623: ######################################################################
3624: ######################################################################
3625:
3626: =pod
3627:
3628: =item &filled() see if field is filled.
3629:
3630: =cut
3631:
3632: ######################################################################
3633: ######################################################################
1.98 harris41 3634: sub filled {
3635: my ($field)=@_;
3636: if ($field=~/\S/ && $field ne 'any') {
1.204 matthew 3637: return 1;
3638: } else {
3639: return 0;
1.61 harris41 3640: }
1.60 harris41 3641: }
3642:
1.122 matthew 3643: ######################################################################
3644: ######################################################################
3645:
3646: =pod
3647:
1.228 matthew 3648: =item &output_unparsed_phrase_error()
3649:
3650: =cut
3651:
3652: ######################################################################
3653: ######################################################################
3654: sub output_unparsed_phrase_error {
3655: my ($r,$closebutton,$parms,$hidden_fields,$field)=@_;
3656: my $errorstring;
3657: if ($field eq 'basicexp') {
1.312 bisitz 3658: $errorstring = &mt('Unable to understand the search phrase [_1]. Please modify your search.'
3659: ,'<i>'.$env{'form.basicexp'}.'</i>');
1.228 matthew 3660: } else {
1.312 bisitz 3661: $errorstring = &mt('Unable to understand the search phrase [_1]: [_2]'
3662: ,'<i>'.$field.'</i>'
3663: ,$env{'form.'.$field});
1.228 matthew 3664: }
3665: my $heading = &mt('Unparsed Field');
3666: my $revise = &mt('Revise search request');
3667: # make query information persistent to allow for subsequent revision
1.256 albertel 3668: my $start_page = &Apache::loncommon::start_page('Search');
3669: my $end_page = &Apache::loncommon::end_page();
1.228 matthew 3670: $r->print(<<ENDPAGE);
1.256 albertel 3671: $start_page
1.228 matthew 3672: <form method="post" action="/adm/searchcat">
3673: $hidden_fields
3674: $closebutton
3675: <hr />
3676: <h2>$heading</h2>
1.312 bisitz 3677: <p class="LC_warning">
1.228 matthew 3678: $errorstring
3679: </p>
3680: <p>
1.309 bisitz 3681: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.228 matthew 3682: </p>
1.256 albertel 3683: $end_page
1.228 matthew 3684: ENDPAGE
3685: }
3686:
3687: ######################################################################
3688: ######################################################################
3689:
3690: =pod
3691:
1.122 matthew 3692: =item &output_blank_field_error()
3693:
1.151 matthew 3694: Output a complete page that indicates the user has not filled in enough
3695: information to do a search.
3696:
3697: Inputs: $r (Apache request handle), $closebutton, $parms.
3698:
3699: Returns: nothing
3700:
3701: $parms is extra information to include in the 'Revise search request' link.
3702:
1.122 matthew 3703: =cut
3704:
3705: ######################################################################
3706: ######################################################################
1.98 harris41 3707: sub output_blank_field_error {
1.196 matthew 3708: my ($r,$closebutton,$parms,$hidden_fields)=@_;
1.312 bisitz 3709: 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.');
1.228 matthew 3710: my $revise = &mt('Revise Search Request');
1.315 bisitz 3711: my $heading = &mt('Unactionable Search Query');
1.256 albertel 3712: my $start_page = &Apache::loncommon::start_page('Search');
3713: my $end_page = &Apache::loncommon::end_page();
1.315 bisitz 3714: if ($closebutton) {
3715: $closebutton = '<p>'.$closebutton.'</p><hr />';
3716: } else {
3717: &Apache::lonhtmlcommon::add_breadcrumb
3718: ({href=>'',
3719: text=>$heading,});
3720: $start_page .= &Apache::lonhtmlcommon::breadcrumbs();
3721: }
3722:
1.228 matthew 3723: $r->print(<<ENDPAGE);
1.256 albertel 3724: $start_page
1.98 harris41 3725: <form method="post" action="/adm/searchcat">
1.145 matthew 3726: $hidden_fields
1.98 harris41 3727: $closebutton
1.315 bisitz 3728: </form>
1.228 matthew 3729: <h2>$heading</h2>
1.312 bisitz 3730: <p class="LC_warning">
1.228 matthew 3731: $errormsg
3732: </p>
3733: <p>
1.315 bisitz 3734: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.98 harris41 3735: </p>
1.256 albertel 3736: $end_page
1.228 matthew 3737: ENDPAGE
3738: return;
1.98 harris41 3739: }
3740:
1.122 matthew 3741: ######################################################################
3742: ######################################################################
3743:
3744: =pod
3745:
3746: =item &output_date_error()
3747:
3748: Output a full html page with an error message.
3749:
1.145 matthew 3750: Inputs:
3751:
3752: $r, the request pointer.
3753: $message, the error message for the user.
3754: $closebutton, the specialized close button needed for groupsearch.
3755:
1.122 matthew 3756: =cut
3757:
3758: ######################################################################
3759: ######################################################################
1.60 harris41 3760: sub output_date_error {
1.196 matthew 3761: my ($r,$message,$closebutton,$hidden_fields)=@_;
1.60 harris41 3762: # make query information persistent to allow for subsequent revision
1.256 albertel 3763: my $start_page = &Apache::loncommon::start_page('Search');
3764: my $end_page = &Apache::loncommon::end_page();
1.312 bisitz 3765: my $heading = &mt('Error');
1.122 matthew 3766: $r->print(<<RESULTS);
1.256 albertel 3767: $start_page
1.60 harris41 3768: <form method="post" action="/adm/searchcat">
1.145 matthew 3769: $hidden_fields
1.60 harris41 3770: <input type='button' value='Revise search request'
1.313 bisitz 3771: onclick='this.form.submit();' />
1.60 harris41 3772: $closebutton
1.312 bisitz 3773: </form>
1.98 harris41 3774: <hr />
1.312 bisitz 3775: <h3>$heading</h3>
3776: <p class="LC_error">
1.60 harris41 3777: $message
3778: </p>
1.256 albertel 3779: $end_page
1.60 harris41 3780: RESULTS
1.101 harris41 3781: }
3782:
1.122 matthew 3783: ######################################################################
3784: ######################################################################
3785:
3786: =pod
3787:
3788: =item &start_fresh_session()
3789:
1.142 matthew 3790: Cleans the global %groupsearch_db by removing all fields which begin with
1.122 matthew 3791: 'pre_' or 'store'.
3792:
3793: =cut
3794:
3795: ######################################################################
3796: ######################################################################
1.101 harris41 3797: sub start_fresh_session {
1.142 matthew 3798: delete $groupsearch_db{'mode_catalog'};
3799: foreach (keys %groupsearch_db) {
1.101 harris41 3800: if ($_ =~ /^pre_/) {
1.142 matthew 3801: delete $groupsearch_db{$_};
1.101 harris41 3802: }
3803: if ($_ =~ /^store/) {
1.142 matthew 3804: delete $groupsearch_db{$_};
1.101 harris41 3805: }
1.109 harris41 3806: }
1.3 harris41 3807: }
1.1 www 3808:
3809: 1;
1.162 www 3810:
3811: sub cleanup {
1.163 www 3812: if (tied(%groupsearch_db)) {
3813: unless (untie(%groupsearch_db)) {
3814: &Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db');
3815: }
3816: }
1.162 www 3817: &Apache::lonmysql::disconnect_from_db();
1.252 albertel 3818: return OK;
1.162 www 3819: }
1.98 harris41 3820:
1.1 www 3821: __END__
1.105 harris41 3822:
1.121 matthew 3823: =pod
1.105 harris41 3824:
1.121 matthew 3825: =back
1.105 harris41 3826:
3827: =cut
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