Annotation of loncom/interface/lonsearchcat.pm, revision 1.348
1.98 harris41 1: # The LearningOnline Network with CAPA
1.108 harris41 2: # Search Catalog
3: #
1.348 ! musolffc 4: # $Id: lonsearchcat.pm,v 1.347 2015/06/18 15:10:52 damieng 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: =cut
56:
57: ###############################################################################
1.98 harris41 58: ###############################################################################
1.121 matthew 59:
1.1 www 60: package Apache::lonsearchcat;
61:
62: use strict;
1.167 www 63: use Apache::Constants qw(:common :http);
1.243 albertel 64: use Apache::lonnet;
1.6 harris41 65: use Apache::File();
1.7 harris41 66: use CGI qw(:standard);
1.41 harris41 67: use Text::Query;
1.101 harris41 68: use GDBM_File;
1.112 harris41 69: use Apache::loncommon();
1.144 matthew 70: use Apache::lonmysql();
1.200 www 71: use Apache::lonmeta;
72: use Apache::lonhtmlcommon;
1.186 www 73: use Apache::lonlocal;
1.204 matthew 74: use LONCAPA::lonmetadata();
1.212 matthew 75: use HTML::Entities();
1.228 matthew 76: use Parse::RecDescent;
1.231 raeburn 77: use Apache::lonnavmaps;
1.255 www 78: use Apache::lonindexer();
1.328 wenzelju 79: use Apache::lonwishlist();
1.265 www 80: use LONCAPA;
1.345 damieng 81: use Time::HiRes qw(sleep);
1.1 www 82:
1.121 matthew 83: ######################################################################
84: ######################################################################
1.196 matthew 85: ##
86: ## Global variables
87: ##
1.121 matthew 88: ######################################################################
89: ######################################################################
1.196 matthew 90: my %groupsearch_db; # Database hash used to save values for the
91: # groupsearch RAT interface.
92: my %persistent_db; # gdbm hash which holds data which is supposed to
93: # persist across calls to lonsearchcat.pm
1.121 matthew 94:
1.200 www 95: # The different view modes and associated functions
96:
97: my %Views = ("detailed" => \&detailed_citation_view,
1.255 www 98: "detailedpreview" => \&detailed_citation_preview,
1.200 www 99: "summary" => \&summary_view,
1.255 www 100: "summarypreview" => \&summary_preview,
1.200 www 101: "fielded" => \&fielded_format_view,
102: "xml" => \&xml_sgml_view,
103: "compact" => \&compact_view);
1.101 harris41 104:
1.121 matthew 105: ######################################################################
106: ######################################################################
1.98 harris41 107: sub handler {
108: my $r = shift;
1.197 www 109: # &set_defaults();
1.196 matthew 110: #
111: # set form defaults
1.145 matthew 112: #
1.196 matthew 113: my $hidden_fields;# Hold all the hidden fields used to keep track
114: # of the search system state
115: my $importbutton; # button to take the selected results and go to group
116: # sorting
117: my $diropendb; # The full path to the (temporary) search database file.
118: # This is set and used in &handler() and is also used in
119: # &output_results().
1.157 www 120:
1.221 matthew 121: #
1.145 matthew 122: my $closebutton; # button that closes the search window
123: # This button is different for the RAT compared to
124: # normal invocation.
125: #
1.186 www 126: &Apache::loncommon::content_type($r,'text/html');
1.98 harris41 127: $r->send_http_header;
128: return OK if $r->header_only;
1.156 matthew 129: ##
130: ## Prevent caching of the search interface window. Hopefully this means
131: ## we will get the launch=1 passed in a little more.
132: &Apache::loncommon::no_cache($r);
1.145 matthew 133: ##
134: ## Pick up form fields passed in the links.
135: ##
136: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.146 matthew 137: ['catalogmode','launch','acts','mode','form','element','pause',
1.158 matthew 138: 'phase','persistent_db_id','table','start','show',
1.288 albertel 139: 'cleargroupsort','titleelement','area','inhibitmenu']);
1.146 matthew 140: ##
141: ## The following is a trick - we wait a few seconds if asked to so
142: ## the daemon running the search can get ahead of the daemon
143: ## printing the results. We only need (theoretically) to do
144: ## this once, so the pause indicator is deleted
145: ##
1.243 albertel 146: if (exists($env{'form.pause'})) {
1.346 damieng 147: sleep(0.1);
1.243 albertel 148: delete($env{'form.pause'});
1.146 matthew 149: }
1.143 matthew 150: ##
151: ## Initialize global variables
152: ##
1.121 matthew 153: my $domain = $r->dir_config('lonDefDomain');
1.330 foxr 154: my $temp_file_dir = LONCAPA::tempdir();
155: $diropendb= $temp_file_dir .
1.266 www 156: "$env{'user.domain'}_$env{'user.name'}_sel_res.db";
1.145 matthew 157: #
158: # set the name of the persistent database
1.243 albertel 159: # $env{'form.persistent_db_id'} can only have digits in it.
160: if (! exists($env{'form.persistent_db_id'}) ||
161: ($env{'form.persistent_db_id'} =~ /\D/) ||
162: ($env{'form.launch'} eq '1')) {
163: $env{'form.persistent_db_id'} = time;
1.145 matthew 164: }
1.257 albertel 165:
1.330 foxr 166: my $persistent_db_file = $temp_file_dir .
1.265 www 167: &escape($domain).
168: '_'.&escape($env{'user.name'}).
1.243 albertel 169: '_'.$env{'form.persistent_db_id'}.'_persistent_search.db';
1.146 matthew 170: ##
1.209 matthew 171: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.277 raeburn 172:
173: my @allowed_searches = ('portfolio');
1.342 raeburn 174: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'}) eq 'F') {
1.277 raeburn 175: push(@allowed_searches,'res');
176: }
177: my $crumb_text = 'Portfolio Search';
1.327 www 178: if (@allowed_searches ==2) {
179: $crumb_text = 'Portfolio and Catalog Search';
1.277 raeburn 180: }
181: &Apache::lonhtmlcommon::add_breadcrumb
182: ({href=>'/adm/searchcat?'.
1.288 albertel 183: &Apache::loncommon::inhibit_menu_check().
1.309 bisitz 184: '&catalogmode='.$env{'form.catalogmode'}.
185: '&launch='.$env{'form.launch'}.
186: '&mode='.$env{'form.mode'},
1.277 raeburn 187: text=>"$crumb_text",
1.227 matthew 188: target=>'_top',
1.209 matthew 189: bug=>'Searching',});
190: #
1.243 albertel 191: if ($env{'form.phase'} !~ m/(basic|adv|course)_search/) {
1.221 matthew 192: if (! &get_persistent_form_data($persistent_db_file)) {
1.243 albertel 193: if ($env{'form.phase'} =~ /(run_search|results)/) {
1.221 matthew 194: &Apache::lonnet::logthis('lonsearchcat:'.
195: 'Unable to recover data from '.
196: $persistent_db_file);
1.343 raeburn 197: my $msg =
1.341 bisitz 198: &mt('We were unable to retrieve data describing your search.').
199: ' '.&mt('This is a serious error and has been logged.').
200: '<br />'.
201: &mt('Please alert your LON-CAPA administrator.');
202: &Apache::loncommon::simple_error_page(
203: $r,'Search Error',
204: $msg,
205: {'no_auto_mt_msg' => 1});
1.261 albertel 206: return OK;
1.221 matthew 207: }
1.150 matthew 208: }
1.221 matthew 209: } else {
210: &clean_up_environment();
1.147 matthew 211: }
1.124 matthew 212: ##
1.143 matthew 213: ## Clear out old values from groupsearch database
1.124 matthew 214: ##
1.146 matthew 215: untie %groupsearch_db if (tied(%groupsearch_db));
1.243 albertel 216: if (($env{'form.cleargroupsort'} eq '1') ||
217: (($env{'form.launch'} eq '1') &&
1.267 www 218: ($env{'form.catalogmode'} eq 'import'))) {
1.148 matthew 219: if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.101 harris41 220: &start_fresh_session();
1.142 matthew 221: untie %groupsearch_db;
1.243 albertel 222: delete($env{'form.cleargroupsort'});
1.122 matthew 223: } else {
1.155 matthew 224: # This is a stupid error to give to the user.
225: # It really tells them nothing.
1.256 albertel 226: my $msg = 'Unable to tie hash to db file.';
1.261 albertel 227: &Apache::loncommon::simple_error_page($r,'Search Error',
228: $msg);
229: return OK;
1.101 harris41 230: }
231: }
1.124 matthew 232: ##
1.150 matthew 233: ## Configure hidden fields
1.124 matthew 234: ##
1.145 matthew 235: $hidden_fields = '<input type="hidden" name="persistent_db_id" value="'.
1.243 albertel 236: $env{'form.persistent_db_id'}.'" />'."\n";
237: if (exists($env{'form.catalogmode'})) {
1.223 matthew 238: $hidden_fields .= &hidden_field('catalogmode');
1.150 matthew 239: }
1.243 albertel 240: if (exists($env{'form.form'})) {
1.223 matthew 241: $hidden_fields .= &hidden_field('form');
1.150 matthew 242: }
1.243 albertel 243: if (exists($env{'form.element'})) {
1.223 matthew 244: $hidden_fields .= &hidden_field('element');
1.150 matthew 245: }
1.243 albertel 246: if (exists($env{'form.titleelement'})) {
1.223 matthew 247: $hidden_fields .= &hidden_field('titleelement');
1.191 albertel 248: }
1.243 albertel 249: if (exists($env{'form.mode'})) {
1.223 matthew 250: $hidden_fields .= &hidden_field('mode');
1.150 matthew 251: }
1.276 raeburn 252: if (exists($env{'form.area'})) {
253: $hidden_fields .= &hidden_field('area');
254: }
1.288 albertel 255: if (exists($env{'form.inhibitmenu'})) {
256: $hidden_fields .= &hidden_field('inhibitmenu');
257: }
1.150 matthew 258: ##
259: ## Configure dynamic components of interface
1.146 matthew 260: ##
1.243 albertel 261: if ($env{'form.catalogmode'} eq 'interactive') {
1.313 bisitz 262: $closebutton="<input type='button' name='close' value='".&mt('Close')."' ";
1.243 albertel 263: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.315 bisitz 264: $closebutton .="onclick='parent.close()'";
1.150 matthew 265: } else {
1.313 bisitz 266: $closebutton .="onclick='self.close()'";
1.150 matthew 267: }
1.315 bisitz 268: $closebutton .=" />\n";
1.267 www 269: } elsif ($env{'form.catalogmode'} eq 'import') {
1.313 bisitz 270: $closebutton="<input type='button' name='close' value='".&mt('Close')."' ";
1.243 albertel 271: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.315 bisitz 272: $closebutton .="onclick='parent.close()'";
1.150 matthew 273: } else {
1.313 bisitz 274: $closebutton .="onclick='self.close()'";
1.150 matthew 275: }
1.315 bisitz 276: $closebutton .= " />";
1.297 bisitz 277: my $txt_import = &mt('IMPORT');
1.98 harris41 278: $importbutton=<<END;
1.297 bisitz 279: <input type='button' name='import' value='$txt_import'
1.315 bisitz 280: onclick='javascript:select_group()' />
1.98 harris41 281: END
1.146 matthew 282: } else {
283: $closebutton = '';
284: $importbutton = '';
1.98 harris41 285: }
1.124 matthew 286: ##
1.146 matthew 287: ## Sanity checks on form elements
1.124 matthew 288: ##
1.243 albertel 289: if (!defined($env{'form.viewselect'})) {
1.248 www 290: $env{'form.viewselect'} ="summary";
1.146 matthew 291: }
1.243 albertel 292: $env{'form.phase'} = 'disp_basic' if (! exists($env{'form.phase'}));
293: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
1.209 matthew 294: #
1.243 albertel 295: $env{'form.searchmode'} = 'basic' if (! exists($env{'form.searchmode'}));
296: if ($env{'form.phase'} eq 'adv_search' ||
297: $env{'form.phase'} eq 'disp_adv') {
298: $env{'form.searchmode'} = 'advanced';
1.209 matthew 299: }
300: #
1.243 albertel 301: if ($env{'form.searchmode'} eq 'advanced') {
1.277 raeburn 302: my $srchtype = 'Catalog';
303: if ($env{'form.area'} eq 'portfolio') {
304: $srchtype = 'Portfolio';
305: }
1.209 matthew 306: &Apache::lonhtmlcommon::add_breadcrumb
1.288 albertel 307: ({href=>'/adm/searchcat?'.&Apache::loncommon::inhibit_menu_check().
1.309 bisitz 308: '&phase=disp_adv'.
309: '&catalogmode='.$env{'form.catalogmode'}.
310: '&launch='.$env{'form.launch'}.
311: '&mode='.$env{'form.mode'},
1.277 raeburn 312: text=>"Advanced $srchtype Search",
1.209 matthew 313: bug=>'Searching',});
1.327 www 314: }
1.146 matthew 315: ##
316: ## Switch on the phase
317: ##
1.243 albertel 318: if ($env{'form.phase'} eq 'disp_basic') {
1.196 matthew 319: &print_basic_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 320: } elsif ($env{'form.phase'} eq 'disp_adv') {
1.196 matthew 321: &print_advanced_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 322: } elsif ($env{'form.phase'} eq 'results') {
1.276 raeburn 323: &display_results($r,$importbutton,$closebutton,$diropendb,
324: $env{'form.area'});
1.243 albertel 325: } elsif ($env{'form.phase'} =~ /^(sort|run_search)$/) {
1.336 raeburn 326: my ($query,$customquery,$customshow,$libraries,$pretty_string,$domainsref) =
1.146 matthew 327: &get_persistent_data($persistent_db_file,
328: ['query','customquery','customshow',
1.336 raeburn 329: 'libraries','pretty_string','domains']);
1.243 albertel 330: if ($env{'form.phase'} eq 'sort') {
1.151 matthew 331: &print_sort_form($r,$pretty_string);
1.243 albertel 332: } elsif ($env{'form.phase'} eq 'run_search') {
1.151 matthew 333: &run_search($r,$query,$customquery,$customshow,
1.336 raeburn 334: $libraries,$pretty_string,$env{'form.area'},$domainsref);
1.151 matthew 335: }
1.243 albertel 336: } elsif(($env{'form.phase'} eq 'basic_search') ||
337: ($env{'form.phase'} eq 'adv_search')) {
1.228 matthew 338: #
339: # We are running a search, try to parse it
1.336 raeburn 340: my ($query,$customquery,$customshow,$libraries,$domains) =
341: (undef,undef,undef,undef,undef);
1.228 matthew 342: my $pretty_string;
1.243 albertel 343: if ($env{'form.phase'} eq 'basic_search') {
1.336 raeburn 344: ($query,$pretty_string,$libraries,$domains) =
1.228 matthew 345: &parse_basic_search($r,$closebutton,$hidden_fields);
346: return OK if (! defined($query));
1.243 albertel 347: &make_persistent({ basicexp => $env{'form.basicexp'}},
1.228 matthew 348: $persistent_db_file);
349: } else { # Advanced search
1.336 raeburn 350: ($query,$customquery,$customshow,$libraries,$pretty_string,$domains)
1.228 matthew 351: = &parse_advanced_search($r,$closebutton,$hidden_fields);
352: return OK if (! defined($query));
353: }
354: &make_persistent({ query => $query,
355: customquery => $customquery,
356: customshow => $customshow,
357: libraries => $libraries,
1.336 raeburn 358: pretty_string => $pretty_string,
359: domains => $domains },
1.228 matthew 360: $persistent_db_file);
361: #
1.146 matthew 362: # Set up table
1.276 raeburn 363: if (! defined(&create_results_table($env{'form.area'}))) {
1.198 www 364: my $errorstring=&Apache::lonmysql::get_error();
1.211 matthew 365: &Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
366: 'needed table. lonmysql error:'.
367: $errorstring);
1.256 albertel 368:
369: my $msg =
1.286 albertel 370: 'Unable to create table in which to save search results. '.
1.256 albertel 371: 'The search has been aborted.';
1.261 albertel 372: &Apache::loncommon::simple_error_page($r,'Search Error',
373: $msg);
374: return OK;
1.146 matthew 375: }
1.243 albertel 376: delete($env{'form.launch'});
1.146 matthew 377: if (! &make_form_data_persistent($r,$persistent_db_file)) {
1.256 albertel 378: my $msg=
1.286 albertel 379: 'Unable to properly save search information. '.
1.256 albertel 380: 'The search has been aborted.';
1.261 albertel 381: &Apache::loncommon::simple_error_page($r,'Search Error',
382: $msg);
383: return OK;
1.256 albertel 384: }
1.145 matthew 385: ##
1.146 matthew 386: ## Print out the frames interface
1.145 matthew 387: ##
1.228 matthew 388: if (defined($query)) {
389: &print_frames_interface($r);
390: }
1.124 matthew 391: }
392: return OK;
393: }
1.98 harris41 394:
1.221 matthew 395: #
396: # The mechanism used to store values away and retrieve them does not
397: # handle the case of missing environment variables being significant.
398: #
399: # This routine sets non existant checkbox form elements to ''.
400: #
401: sub clean_up_environment {
1.243 albertel 402: if ($env{'form.phase'} eq 'basic_search') {
403: if (! exists($env{'form.related'})) {
404: $env{'form.related'} = '';
1.221 matthew 405: }
1.243 albertel 406: if (! exists($env{'form.domains'})) {
407: $env{'form.domains'} = '';
1.221 matthew 408: }
1.243 albertel 409: } elsif ($env{'form.phase'} eq 'adv_search') {
1.221 matthew 410: foreach my $field ('title','keywords','notes',
411: 'abstract','standards','mime') {
1.243 albertel 412: if (! exists($env{'form.'.$field.'_related'})) {
413: $env{'form.'.$field.'_related'} = '';
1.221 matthew 414: }
415: }
1.243 albertel 416: } elsif ($env{'form.phase'} eq 'course_search') {
417: if (! exists($env{'form.crsrelated'})) {
418: $env{'form.crsrelated'} = '';
1.221 matthew 419: }
420: }
421: }
422:
1.223 matthew 423: sub hidden_field {
424: my ($name,$value) = @_;
425: if (! defined($value)) {
1.243 albertel 426: $value = $env{'form.'.$name};
1.223 matthew 427: }
428: return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/;
429: }
430:
1.124 matthew 431: ######################################################################
1.167 www 432:
1.339 raeburn 433: =pod
1.124 matthew 434:
1.339 raeburn 435: =over 4
436:
1.146 matthew 437: =item &print_basic_search_form()
1.124 matthew 438:
1.204 matthew 439: Prints the form for the basic search. Sorry the name is so cryptic.
1.124 matthew 440:
441: =cut
442:
443: ######################################################################
444: ######################################################################
1.204 matthew 445: sub print_basic_search_form {
1.196 matthew 446: my ($r,$closebutton,$hidden_fields) = @_;
1.267 www 447: my $result = ($env{'form.catalogmode'} ne 'import');
1.256 albertel 448: my $bread_crumb =
1.263 albertel 449: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Basic',
1.267 www 450: $env{'form.catalogmode'} ne 'import');
1.305 schafran 451: my $scrout = &Apache::loncommon::start_page('Content Library').$bread_crumb;
1.276 raeburn 452: # Search form for resource space
1.342 raeburn 453: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'}) eq 'F') {
1.276 raeburn 454: $scrout .= &setup_basic_search($r,'res',$hidden_fields,$closebutton);
455: $scrout .= '<hr /><br />';
1.180 matthew 456: }
1.276 raeburn 457: # Search form for accessible portfolio files
458: $scrout.= &setup_basic_search($r,'portfolio',$hidden_fields,$closebutton);
1.256 albertel 459: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 460: $r->print($scrout);
461: return;
1.124 matthew 462: }
1.276 raeburn 463:
464: sub setup_basic_search {
465: my ($r,$area,$hidden_fields,$closebutton) = @_;
466: # Define interface components
467: my %lt = &Apache::lonlocal::texthash (
468: res => 'LON-CAPA Catalog Search',
469: portfolio => 'Portfolio Search',
470: );
471: my ($userelatedwords,$onlysearchdomain,$inclext,$adv_search_link,$scrout);
1.318 bisitz 472:
473: $userelatedwords = '<label>'
474: .&Apache::lonhtmlcommon::checkbox(
475: 'related',
476: $env{'form.related'},
477: 'related')
478: .' '
479: .&mt('use related words')
480: .'</label>';
481:
482: $onlysearchdomain = '<label>'
483: .&Apache::lonhtmlcommon::checkbox(
484: 'domains',
485: $env{'form.domains'},
486: $r->dir_config('lonDefDomain'))
487: .' '
488: .&mt('only search domain [_1]'
489: ,'<b>'.$r->dir_config('lonDefDomain').'</b>')
490: .'</label>';
491:
1.276 raeburn 492: $adv_search_link = '<a href="/adm/searchcat?'.
1.288 albertel 493: &Apache::loncommon::inhibit_menu_check().
1.309 bisitz 494: '&phase=disp_adv'.
495: '&catalogmode='.$env{'form.catalogmode'}.
496: '&launch='.$env{'form.launch'}.
497: '&mode='.$env{'form.mode'}.
498: '&area='.$area.
499: '&form='.$env{'form.form'}.
500: '&titleelement='.$env{'form.titleelement'}.
501: '&element='.$env{'form.element'}.
1.276 raeburn 502: '">'.&mt('Advanced Search').'</a>';
503: #
504: $scrout.='<form name="loncapa_search" method="post" '.
505: 'action="/adm/searchcat">'.
506: '<input type="hidden" name="phase" value="basic_search" />'.
507: $hidden_fields;
508: if (!exists($env{'form.area'})) {
509: $scrout .= '<input type="hidden" name="area" value="'.$area.'" />';
510: }
511: #
1.313 bisitz 512: $scrout .= '<div align="center">'.$/;
1.276 raeburn 513: # if ($env{'request.course.id'}) {
514: $scrout .= '<h1>'.$lt{$area}.'</h1>';
515: # } else {
516: # No need to tell them they are searching
517: # $scrout.= ('<br />'x2);
518: # }
519: $scrout.='<table>'.
520: '<tr><td align="center" valign="top">'.
521: &Apache::lonhtmlcommon::textbox('basicexp',
522: $env{'form.basicexp'},50).
523: '<br />'.
1.313 bisitz 524: '<span class="LC_fontsize_small">'.&searchhelp().'</span>'.'</td>'.
525: '<td>'.
1.301 bisitz 526: '<span class="LC_nobreak">'.(' 'x3).$adv_search_link.'</span>'.'<br />'.
527: '<span class="LC_nobreak">'.(' 'x1).$userelatedwords.'</span>'.'<br />'.
528: '<span class="LC_nobreak">'.(' 'x1).$onlysearchdomain.'</span>'.'<br />'.
529: '<span class="LC_nobreak">'.(' 'x1).$inclext.'</span>'.'<br />'.
1.313 bisitz 530: '</td>'.
531: '</tr>'.
532: '</table>'.$/;
533: #
534: $scrout .= '<p>'
535: .&viewoptions()
536: .'</p>'
537: .'<p>'
538: .'<input type="submit" name="basicsubmit" '
539: .'value="'.&mt('Search').'" />'
540: .' '
541: .$closebutton
542: .'</p>';
1.276 raeburn 543: #
1.313 bisitz 544: $scrout .= '</div>'.'</form>';
1.276 raeburn 545: return $scrout;
546: }
547:
1.124 matthew 548: ######################################################################
549: ######################################################################
550:
551: =pod
552:
553: =item &advanced_search_form()
554:
1.204 matthew 555: Prints the advanced search form.
1.124 matthew 556:
557: =cut
558:
559: ######################################################################
560: ######################################################################
1.146 matthew 561: sub print_advanced_search_form{
1.196 matthew 562: my ($r,$closebutton,$hidden_fields) = @_;
1.256 albertel 563: my $bread_crumb =
1.263 albertel 564: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Advanced',
1.267 www 565: $env{'form.catalogmode'} ne 'import');
1.200 www 566: my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
567: 'reset' => 'Reset',
568: 'help' => 'Help');
1.217 matthew 569: my $advanced_buttons=<<"END";
1.314 bisitz 570: <p>
1.200 www 571: <input type="submit" name="advancedsubmit" value='$lt{"srch"}' />
572: <input type="reset" name="reset" value='$lt{"reset"}' />
1.129 matthew 573: $closebutton
1.314 bisitz 574: </p>
1.129 matthew 575: END
1.277 raeburn 576: my $srchtype = 'Catalog';
1.279 raeburn 577: my $jscript;
1.277 raeburn 578: if ($env{'form.area'} eq 'portfolio') {
579: $srchtype = 'Portfolio';
1.279 raeburn 580: $jscript = '<script type="text/javascript">
1.313 bisitz 581: // <![CDATA[
1.279 raeburn 582: function additional_metadata() {
583: if (document.advsearch.newfield.checked) {
584: document.advsearch.phase.value = "disp_adv";
585: document.advsearch.numaddedfields.value = parseInt(document.advsearch.numaddedfields.value) +1;
586: document.advsearch.submit();
1.277 raeburn 587: }
1.279 raeburn 588: }
1.313 bisitz 589: // ]]>
1.279 raeburn 590: </script>';
591: }
592: my $scrout= &Apache::loncommon::start_page("Advanced $srchtype Search",
593: $jscript);
1.314 bisitz 594: $scrout .= $bread_crumb;
595:
596: $scrout .= '<form method="post" action="/adm/searchcat" name="advsearch">'
597: .$hidden_fields
598: .'<input type="hidden" name="phase" value="adv_search" />';
599:
600: $scrout .= '<fieldset>'."\n"
601: .'<legend>'.&mt('Display Options').'</legend>'."\n"
602: .&viewoptions()
603: .'</fieldset>';
604:
605: $scrout .= $advanced_buttons;
606:
607: $scrout .= &Apache::lonhtmlcommon::start_pick_box();
608:
1.200 www 609: my %fields=&Apache::lonmeta::fieldnames();
1.314 bisitz 610:
611: # Standard Metadata
612: $scrout .= &Apache::lonhtmlcommon::row_headline()
613: .'<h3>'.&mt("Standard $srchtype Metadata").'</h3>'
614: .&searchhelp()
615: .&Apache::lonhtmlcommon::row_closure();
1.208 matthew 616: my %related_word_search =
1.217 matthew 617: ('title' => 1,
618: 'author' => 0,
619: 'owner' => 0,
620: 'authorspace' => 0,
621: 'modifyinguser'=> 0,
622: 'keywords' => 1,
623: 'notes' => 1,
624: 'abstract' => 1,
625: 'standards'=> 1,
626: 'mime' => 1,
1.314 bisitz 627: 'subject' => 1,
1.208 matthew 628: );
1.209 matthew 629: #
1.246 albertel 630: foreach my $field ('title','author','subject','owner','authorspace',
1.314 bisitz 631: 'modifyinguser','keywords','notes','abstract',
632: 'standards','mime') {
633: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield($fields{$field}))
634: .&Apache::lonmeta::prettyinput($field,
1.243 albertel 635: $env{'form.'.$field},
1.208 matthew 636: $field,
637: 'advsearch',
1.314 bisitz 638: $related_word_search{$field},
639: '',
1.243 albertel 640: $env{'form.'.$field.'_related'},
1.208 matthew 641: 50);
642: if ($related_word_search{$field}) {
1.289 bisitz 643: $scrout .= &mt('related words');
1.208 matthew 644: } else {
1.314 bisitz 645: $scrout .= '';
1.208 matthew 646: }
1.314 bisitz 647: $scrout .= &Apache::lonhtmlcommon::row_closure();
1.208 matthew 648: }
649: foreach my $field ('lowestgradelevel','highestgradelevel') {
1.314 bisitz 650: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield($fields{$field}))
651: .&Apache::lonmeta::prettyinput($field,
1.243 albertel 652: $env{'form.'.$field},
1.208 matthew 653: $field,
654: 'advsearch',
1.314 bisitz 655: 0)
656: .&Apache::lonhtmlcommon::row_closure();
1.200 www 657: }
1.314 bisitz 658:
659: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('MIME Type Category')))
660: .&Apache::loncommon::filecategoryselect('category',
661: $env{'form.category'})
662: .&Apache::lonhtmlcommon::row_closure();
663:
664: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Domains')))
665: .&Apache::loncommon::domain_select('domains',
666: $env{'form.domains'},1)
667: .&Apache::lonhtmlcommon::row_closure();
668:
1.217 matthew 669: # Misc metadata
1.276 raeburn 670: if ($env{'form.area'} ne 'portfolio') {
1.314 bisitz 671: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Copyright/Distribution')))
672: .&Apache::lonmeta::selectbox('copyright',
1.276 raeburn 673: $env{'form.copyright'},
674: \&Apache::loncommon::copyrightdescription,
675: ( undef,
676: &Apache::loncommon::copyrightids)
1.314 bisitz 677: )
678: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 679: }
1.314 bisitz 680:
681: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Language')))
682: .&Apache::lonmeta::selectbox('language',
1.243 albertel 683: $env{'form.language'},
1.217 matthew 684: \&Apache::loncommon::languagedescription,
685: ('any',&Apache::loncommon::languageids)
1.314 bisitz 686: )
687: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 688:
1.314 bisitz 689: # Portfolio Metadata
1.276 raeburn 690: if ($env{'form.area'} eq 'portfolio') {
691: # Added fields
1.279 raeburn 692: my $curnumadd = $env{'form.numaddedfields'};
693: if ($curnumadd eq '') {
694: $curnumadd = 1;
695: }
1.314 bisitz 696: $scrout .= &Apache::lonhtmlcommon::row_headline()
697: .'<h3>'.&mt('Custom Metadata fields').'</h3>'
698: .&Apache::lonhtmlcommon::row_closure()
699: .&Apache::lonhtmlcommon::row_title('')
700: .&mt('Field Name').' | '.&mt('Field Value(s)')
701: .&Apache::lonhtmlcommon::row_closure();
1.279 raeburn 702:
703: for (my $j=0; $j<$curnumadd; $j++) {
1.276 raeburn 704: my $num = $j+1;
1.314 bisitz 705: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Custom metadata [_1]',$num))
706: .'<input type="text"'
707: .' name="addedfield_'.$j.'" size="10"'
708: .' value="'.$env{'form.addedfield_'.$j}.'" />'
709: .' '
710: .'<input type="text" '
711: .'name="addedvalues_'.$j.'" size="15"'
712: .' value="'.$env{'form.addedvalues_'.$j}.'" />'
713: .&Apache::lonhtmlcommon::row_closure();
714: }
715: $scrout .= &Apache::lonhtmlcommon::row_title('')
716: .'<label>'
717: .'<input type="checkbox" name="newfield"'
718: .' value="1" onclick="javascript:additional_metadata()" />'
719: .&mt('Another custom field/value pair?').'</label>'
720: .'<input type="hidden" name="numaddedfields"'
721: .' value="'.$curnumadd.'" />'
722: .&Apache::lonhtmlcommon::row_closure();
723: } else {
1.276 raeburn 724: #
725: # Dynamic metadata
1.314 bisitz 726: $scrout .= &Apache::lonhtmlcommon::row_headline()
727: .'<h3>'.&mt('Problem Statistics').'</h3>'
728: .&Apache::lonhtmlcommon::row_closure();
729: $scrout .= &Apache::lonhtmlcommon::row_title('')
730: .&mt('Minimum').' | '.&mt('Maximum')
731: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 732: foreach my $statistic
733: ({ name=>'count',
734: description=>'Network-wide number of accesses (hits)',},
735: { name=>'stdno',
736: description=>
1.285 www 737: 'Statistics calculated for number of students',},
1.276 raeburn 738: { name => 'avetries',
739: description=>'Average number of tries till solved',},
740: { name => 'difficulty',
741: description=>'Degree of difficulty',},
742: { name => 'disc',
743: description=>'Degree of discrimination'}) {
1.314 bisitz 744: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt($statistic->{'description'})))
745: .'<input type="text" name="'.$statistic->{'name'}
746: .'_min" value="" size="6" />'
747: .' '
748: .'<input type="text" name="'.$statistic->{'name'}
749: .'_max" value="" size="6" />'
750: .&Apache::lonhtmlcommon::row_closure();
751: }
752:
753: $scrout .= &Apache::lonhtmlcommon::row_headline()
754: .'<h3>'.&mt('Evaluation Data').'</h3>'
755: .&Apache::lonhtmlcommon::row_closure();
756: $scrout .= &Apache::lonhtmlcommon::row_title('')
757: .&mt('Minimum').' | '.&mt('Maximum')
758: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 759: foreach my $evaluation
760: ( { name => 'clear',
761: description => 'Material presented in clear way'},
762: { name =>'depth',
763: description => 'Material covered with sufficient depth'},
764: { name => 'helpful',
765: description => 'Material is helpful'},
766: { name => 'correct',
767: description => 'Material appears to be correct'},
768: { name => 'technical',
769: description => 'Resource is technically correct'}){
1.314 bisitz 770: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt($evaluation->{'description'})))
771: .'<input type="text" name="'
772: .$evaluation->{'name'}.'_min" value="" size="6" />'
773: .' '
774: .'<input type="text" name="'
775: .$evaluation->{'name'}.'_max" value="" size="6" />'
776: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 777: }
1.217 matthew 778: }
1.216 matthew 779: #
780: # Creation/Modification date limits
1.314 bisitz 781: $scrout .= &Apache::lonhtmlcommon::row_headline()
782: .'<h3>'.&mt('Creation and Modification dates').'</h3>'
783: .&Apache::lonhtmlcommon::row_closure();
784: $scrout .= &Apache::lonhtmlcommon::row_title('')
785: .&mt('Month[_1]Day[_2]Year',' 'x14,' 'x6)
786: .&Apache::lonhtmlcommon::row_closure();
787:
1.216 matthew 788: my $cafter =
789: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
790: 'creationdate1', # fieldname
791: 0, # current value
792: '', # special
793: 1, # includeempty
794: '', # state
795: 1, # no_hh_mm_ss
796: );
797: my $cbefore =
798: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
799: 'creationdate2', # fieldname
800: 0, # current value
801: '', # special
802: 1, # includeempty
803: '', # state
804: 1, # no_hh_mm_ss
805: );
1.314 bisitz 806: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Created between'))
807: .$cafter
808: .&Apache::lonhtmlcommon::row_closure(1)
809: .&Apache::lonhtmlcommon::row_title(&mt('and'))
810: .$cbefore
811: .&Apache::lonhtmlcommon::row_closure();
812:
1.216 matthew 813: my $lafter =
814: &Apache::lonhtmlcommon::date_setter('advsearch',
815: 'revisiondate1',
816: 0, # current value
817: '', # special
818: 1, # includeempty
819: '', # state
820: 1, # no_hh_mm_ss
821: );
822: my $lbefore =
823: &Apache::lonhtmlcommon::date_setter('advsearch',
824: 'revisiondate2',
825: 0, # current value
826: '', # special
827: 1, # includeempty
828: '', # state
829: 1, # no_hh_mm_ss
830: );
1.314 bisitz 831: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Last modified between'))
832: .$lafter
833: .&Apache::lonhtmlcommon::row_closure(1)
834: .&Apache::lonhtmlcommon::row_title(&mt('and'))
835: .$lbefore
836: .&Apache::lonhtmlcommon::row_closure(1); # Last row of total pick_box
837:
838: $scrout .= &Apache::lonhtmlcommon::end_pick_box();
839:
840: $scrout .= $advanced_buttons
841: .'</form>';
842:
1.256 albertel 843: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 844: $r->print($scrout);
845: return;
1.124 matthew 846: }
1.204 matthew 847:
1.200 www 848: ######################################################################
849: ######################################################################
850:
851: =pod
852:
1.204 matthew 853: =item &titlefield()
1.200 www 854:
855: Inputs: title text
856:
857: Outputs: titletext with font wrapper
858:
859: =cut
860:
861: ######################################################################
862: ######################################################################
863: sub titlefield {
864: my $title=shift;
1.208 matthew 865: return $title;
1.200 www 866: }
1.204 matthew 867:
1.200 www 868: ######################################################################
869: ######################################################################
870:
871: =pod
872:
1.204 matthew 873: =item viewoptiontext()
1.200 www 874:
875: Inputs: codename for view option
876:
877: Outputs: displayed text
878:
879: =cut
880:
881: ######################################################################
882: ######################################################################
883: sub viewoptiontext {
884: my $code=shift;
1.204 matthew 885: my %desc=&Apache::lonlocal::texthash
886: ('detailed' => "Detailed Citation View",
887: 'xml' => 'XML/SGML',
888: 'compact' => 'Compact View',
889: 'fielded' => 'Fielded Format',
1.255 www 890: 'summary' => 'Summary View',
891: 'summarypreview' => 'Summary Preview',
892: 'detailedpreview' => 'Detailed Citation Preview');
1.200 www 893: return $desc{$code};
894: }
1.204 matthew 895:
896: ######################################################################
1.200 www 897: ######################################################################
898:
899: =pod
900:
1.204 matthew 901: =item viewoptions()
1.200 www 902:
903: Inputs: none
904:
905: Outputs: text for box with view options
906:
907: =cut
908:
909: ######################################################################
910: ######################################################################
911: sub viewoptions {
1.313 bisitz 912: my $scrout;
1.243 albertel 913: if (! defined($env{'form.viewselect'})) {
914: $env{'form.viewselect'}='detailed';
1.208 matthew 915: }
1.313 bisitz 916: $scrout .= '<span class="LC_nobreak">'
917: .&mt('Type:').' '
918: .&Apache::lonmeta::selectbox('viewselect',
919: $env{'form.viewselect'},
920: \&viewoptiontext,
921: sort(keys(%Views)))
922: .'</span>';
1.214 matthew 923: my $countselect = &Apache::lonmeta::selectbox('show',
1.243 albertel 924: $env{'form.show'},
1.214 matthew 925: undef,
926: (10,20,50,100,1000,10000));
1.313 bisitz 927: $scrout .= ' <span class="LC_nobreak">'
928: .&mt('Records per Page:').' '.$countselect
1.301 bisitz 929: .'</span>'.$/;
1.200 www 930: return $scrout;
1.201 www 931: }
932:
933: ######################################################################
1.204 matthew 934: ######################################################################
1.201 www 935:
936: =pod
937:
1.204 matthew 938: =item searchhelp()
1.201 www 939:
940: Inputs: none
941:
942: Outputs: return little blurb on how to enter searches
943:
944: =cut
945:
946: ######################################################################
947: ######################################################################
948: sub searchhelp {
1.228 matthew 949: return &mt('Enter words and quoted phrases');
1.200 www 950: }
1.8 harris41 951:
1.121 matthew 952: ######################################################################
953: ######################################################################
954:
955: =pod
956:
1.204 matthew 957: =item &get_persistent_form_data()
1.145 matthew 958:
1.146 matthew 959: Inputs: filename of database
960:
961: Outputs: returns undef on database errors.
962:
963: This function is the reverse of &make_persistent() for form data.
1.145 matthew 964: Retrieve persistent data from %persistent_db. Retrieved items will have their
1.243 albertel 965: values unescaped. If a form value already exists in $env, it will not be
1.146 matthew 966: overwritten. Form values that are array references may have values appended
967: to them.
1.145 matthew 968:
969: =cut
970:
971: ######################################################################
972: ######################################################################
1.146 matthew 973: sub get_persistent_form_data {
974: my $filename = shift;
1.147 matthew 975: return 0 if (! -e $filename);
1.146 matthew 976: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 977: &GDBM_READER(),0640));
1.146 matthew 978: #
979: # These make sure we do not get array references printed out as 'values'.
1.161 matthew 980: my %arrays_allowed = ('form.domains'=>1);
1.146 matthew 981: #
982: # Loop through the keys, looking for 'form.'
983: foreach my $name (keys(%persistent_db)) {
984: next if ($name !~ /^form./);
1.182 matthew 985: # Kludgification begins!
986: if ($name eq 'form.domains' &&
1.243 albertel 987: $env{'form.searchmode'} eq 'basic' &&
988: $env{'form.phase'} ne 'disp_basic') {
1.182 matthew 989: next;
990: }
991: # End kludge (hopefully)
1.243 albertel 992: next if (exists($env{$name}));
1.146 matthew 993: my @values = map {
1.265 www 994: &unescape($_);
1.146 matthew 995: } split(',',$persistent_db{$name});
996: next if (@values <1);
1.152 matthew 997: if ($arrays_allowed{$name}) {
1.243 albertel 998: $env{$name} = [@values];
1.146 matthew 999: } else {
1.243 albertel 1000: $env{$name} = $values[0] if ($values[0]);
1.146 matthew 1001: }
1002: }
1003: untie (%persistent_db);
1004: return 1;
1005: }
1.181 matthew 1006:
1.146 matthew 1007: ######################################################################
1008: ######################################################################
1009:
1010: =pod
1011:
1.204 matthew 1012: =item &get_persistent_data()
1.146 matthew 1013:
1014: Inputs: filename of database, ref to array of values to recover.
1015:
1016: Outputs: array of values. Returns undef on error.
1017:
1018: This function is the reverse of &make_persistent();
1019: Retrieve persistent data from %persistent_db. Retrieved items will have their
1.336 raeburn 1020: values unescaped. If the item is 'domains; then the returned
1021: value will be a hash pointer. Otherwise, if the item contains
1.338 raeburn 1022: commas (before unescaping), the returned value will be an array pointer.
1.146 matthew 1023:
1024: =cut
1025:
1026: ######################################################################
1027: ######################################################################
1028: sub get_persistent_data {
1029: my $filename = shift;
1030: my @Vars = @{shift()};
1031: my @Values; # Return array
1032: return undef if (! -e $filename);
1033: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 1034: &GDBM_READER(),0640));
1.146 matthew 1035: foreach my $name (@Vars) {
1036: if (! exists($persistent_db{$name})) {
1037: push @Values, undef;
1038: next;
1039: }
1.336 raeburn 1040: if ($name eq 'domains') {
1041: my %valueshash;
1042: my @items= map { &unescape($_); } split(',',$persistent_db{$name});
1043: foreach my $item (@items) {
1044: if ($item =~ /=/) {
1045: my ($key,$val) = map { &unescape($_); } split(/=/,$item);
1046: $valueshash{$key} = $val;
1047: }
1048: }
1049: push(@Values,\%valueshash);
1.145 matthew 1050: } else {
1.336 raeburn 1051: my @values = map {
1052: &unescape($_);
1053: } split(',',$persistent_db{$name});
1054: if (@values <= 1) {
1055: push @Values,$values[0];
1056: } else {
1057: push @Values,\@values;
1058: }
1.145 matthew 1059: }
1060: }
1.146 matthew 1061: untie (%persistent_db);
1062: return @Values;
1.145 matthew 1063: }
1064:
1065: ######################################################################
1066: ######################################################################
1067:
1068: =pod
1069:
1.121 matthew 1070: =item &make_persistent()
1071:
1.146 matthew 1072: Inputs: Hash of values to save, filename of persistent database.
1073:
1074: Store variables away to the %persistent_db.
1.145 matthew 1075: Values will be escaped. Values that are array pointers will have their
1.336 raeburn 1076: elements escaped and concatenated in a comma separated string. Values
1077: that are hash pointers will have their keys and values escaped and
1.338 raeburn 1078: concatenated in a comma separated string.
1.122 matthew 1079:
1.121 matthew 1080: =cut
1081:
1082: ######################################################################
1083: ######################################################################
1.98 harris41 1084: sub make_persistent {
1.133 matthew 1085: my %save = %{shift()};
1.146 matthew 1086: my $filename = shift;
1087: return undef if (! tie(%persistent_db,'GDBM_File',
1.148 matthew 1088: $filename,&GDBM_WRCREAT(),0640));
1.146 matthew 1089: foreach my $name (keys(%save)) {
1.336 raeburn 1090: my @values=();
1091: if (ref($save{$name}) eq 'ARRAY') {
1092: @values = @{$save{$name}};
1093: } elsif (ref($save{$name}) eq 'HASH') {
1094: foreach my $key (%{$save{$name}}) {
1095: push(@values,&escape($key).'='.&escape($save{$name}{$key}));
1096: }
1097: } else {
1098: @values = $save{$name};
1099: }
1100: # We handle array and hash references, but not recursively.
1.265 www 1101: my $store = join(',', map { &escape($_); } @values );
1.145 matthew 1102: $persistent_db{$name} = $store;
1.109 harris41 1103: }
1.146 matthew 1104: untie(%persistent_db);
1105: return 1;
1106: }
1107:
1108: ######################################################################
1109: ######################################################################
1110:
1111: =pod
1112:
1113: =item &make_form_data_persistent()
1114:
1115: Inputs: filename of persistent database.
1116:
1117: Store most form variables away to the %persistent_db.
1118: Values will be escaped. Values that are array pointers will have their
1.205 www 1119: elements escaped and concatenated in a comma separated string.
1.146 matthew 1120:
1121: =cut
1122:
1123: ######################################################################
1124: ######################################################################
1125: sub make_form_data_persistent {
1126: my $r = shift;
1127: my $filename = shift;
1128: my %save;
1.243 albertel 1129: foreach (keys(%env)) {
1.150 matthew 1130: next if (!/^form/ || /submit/);
1.243 albertel 1131: $save{$_} = $env{$_};
1.146 matthew 1132: }
1.152 matthew 1133: return &make_persistent(\%save,$filename);
1.98 harris41 1134: }
1135:
1.122 matthew 1136: ######################################################################
1137: ######################################################################
1138:
1139: =pod
1140:
1.134 matthew 1141: =item &parse_advanced_search()
1142:
1143: Parse advanced search form and return the following:
1144:
1145: =over 4
1146:
1147: =item $query Scalar containing an SQL query.
1.126 matthew 1148:
1.134 matthew 1149: =item $customquery Scalar containing a custom query.
1150:
1151: =item $customshow Scalar containing commands to show custom metadata.
1152:
1153: =item $libraries_to_query Reference to array of domains to search.
1154:
1155: =back
1.122 matthew 1156:
1157: =cut
1158:
1159: ######################################################################
1160: ######################################################################
1.134 matthew 1161: sub parse_advanced_search {
1.196 matthew 1162: my ($r,$closebutton,$hidden_fields)=@_;
1.216 matthew 1163: my @BasicFields = ('title','author','subject','keywords','url','version',
1.227 matthew 1164: 'notes','abstract','extension','owner','authorspace',
1.216 matthew 1165: # 'custommetadata','customshow',
1166: 'modifyinguser','standards','mime');
1.222 matthew 1167: my @StatsFields = &statfields();
1168: my @EvalFields = &evalfields();
1.32 harris41 1169: my $fillflag=0;
1.230 matthew 1170: my $pretty_search_string = "";
1.64 harris41 1171: # Clean up fields for safety
1.216 matthew 1172: for my $field (@BasicFields,
1173: 'creationdatestart_month','creationdatestart_day',
1.64 harris41 1174: 'creationdatestart_year','creationdateend_month',
1175: 'creationdateend_day','creationdateend_year',
1176: 'lastrevisiondatestart_month','lastrevisiondatestart_day',
1177: 'lastrevisiondatestart_year','lastrevisiondateend_month',
1.216 matthew 1178: 'lastrevisiondateend_day','lastrevisiondateend_year') {
1.300 raeburn 1179: $env{'form.'.$field}=~s/[^\w\/\s\(\)\=\-\"\'.\*]//g;
1.64 harris41 1180: }
1.117 matthew 1181: foreach ('mode','form','element') {
1182: # is this required? Hmmm.
1.243 albertel 1183: next if (! exists($env{'form.'.$_}));
1.265 www 1184: $env{'form.'.$_}=&unescape($env{'form.'.$_});
1.243 albertel 1185: $env{'form.'.$_}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1186: }
1.131 matthew 1187: # Preprocess the category form element.
1.243 albertel 1188: $env{'form.category'} = 'any' if (! defined($env{'form.category'}) ||
1189: ref($env{'form.category'}));
1.161 matthew 1190: #
1.90 harris41 1191: # Check to see if enough information was filled in
1.222 matthew 1192: foreach my $field (@BasicFields) {
1.243 albertel 1193: if (&filled($env{'form.'.$field})) {
1.32 harris41 1194: $fillflag++;
1195: }
1196: }
1.222 matthew 1197: foreach my $field (@StatsFields,@EvalFields) {
1.243 albertel 1198: if (&filled($env{'form.'.$field.'_max'})) {
1.222 matthew 1199: $fillflag++;
1200: }
1.243 albertel 1201: if (&filled($env{'form.'.$field.'_min'})) {
1.222 matthew 1202: $fillflag++;
1203: }
1204: }
1205:
1.216 matthew 1206: for my $field ('lowestgradelevel','highestgradelevel') {
1.243 albertel 1207: if ( $env{'form.'.$field} =~ /^\d+$/ &&
1208: $env{'form.'.$field} > 0) {
1.216 matthew 1209: $fillflag++;
1210: }
1211: }
1.279 raeburn 1212: if ($env{'form.area'} eq 'portfolio') {
1213: # Added metadata fields
1214: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1215: my $field = $env{'form.addedfield_'.$i};
1216: $field =~ s/^\s*(\S*)\s*$/$1/;
1217: $field =~ s/\W/_/g;
1218: if ($field ne '') {
1219: $fillflag++;
1220: }
1221: }
1222: }
1.212 matthew 1223: if (! $fillflag) {
1.204 matthew 1224: &output_blank_field_error($r,$closebutton,
1225: 'phase=disp_adv',$hidden_fields);
1.134 matthew 1226: return ;
1.32 harris41 1227: }
1.90 harris41 1228: # Turn the form input into a SQL-based query
1.39 harris41 1229: my $query='';
1.45 harris41 1230: my @queries;
1.143 matthew 1231: my $font = '<font color="#800000" face="helvetica">';
1.90 harris41 1232: # Evaluate logical expression AND/OR/NOT phrase fields.
1.216 matthew 1233: foreach my $field (@BasicFields) {
1.243 albertel 1234: next if (!defined($env{'form.'.$field}) || $env{'form.'.$field} eq '');
1.228 matthew 1235: my ($error,$SQLQuery) =
1.243 albertel 1236: &process_phrase_input($env{'form.'.$field},
1237: $env{'form.'.$field.'_related'},$field);
1.228 matthew 1238: if (defined($error)) {
1239: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_adv',
1240: $hidden_fields,$field);
1241: return;
1242: } else {
1243: $pretty_search_string .=
1.243 albertel 1244: $font.$field.'</font>: '.$env{'form.'.$field};
1245: if ($env{'form.'.$field.'_related'}) {
1.228 matthew 1246: my @Words =
1247: &Apache::loncommon::get_related_words
1.243 albertel 1248: ($env{'form.'.$field});
1.228 matthew 1249: if (@Words) {
1250: $pretty_search_string.= ' with related words: '.
1251: join(', ',@Words[0..4]);
1.143 matthew 1252: } else {
1.228 matthew 1253: $pretty_search_string.= ' with related words.';
1.143 matthew 1254: }
1.142 matthew 1255: }
1.228 matthew 1256: $pretty_search_string .= '<br />';
1257: push (@queries,$SQLQuery);
1.131 matthew 1258: }
1.44 harris41 1259: }
1.161 matthew 1260: #
1261: # Make the 'mime' from 'form.category' and 'form.extension'
1262: #
1263: my $searchphrase;
1.243 albertel 1264: if (exists($env{'form.category'}) &&
1265: $env{'form.category'} !~ /^\s*$/ &&
1266: $env{'form.category'} ne 'any') {
1.161 matthew 1267: my @extensions = &Apache::loncommon::filecategorytypes
1.243 albertel 1268: ($env{'form.category'});
1.161 matthew 1269: if (scalar(@extensions) > 0) {
1270: $searchphrase = join(' OR ',@extensions);
1271: }
1272: }
1273: if (defined($searchphrase)) {
1.228 matthew 1274: my ($error,$SQLsearch) = &process_phrase_input($searchphrase,0,'mime');
1275: push @queries,$SQLsearch;
1.161 matthew 1276: $pretty_search_string .=$font.'mime</font> contains <b>'.
1277: $searchphrase.'</b><br />';
1.135 matthew 1278: }
1.204 matthew 1279: #
1.90 harris41 1280: # Evaluate option lists
1.243 albertel 1281: if ($env{'form.lowestgradelevel'} &&
1282: $env{'form.lowestgradelevel'} ne '0' &&
1283: $env{'form.lowestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1284: push(@queries,
1.243 albertel 1285: '(lowestgradelevel>='.$env{'form.lowestgradelevel'}.')');
1.216 matthew 1286: $pretty_search_string.="lowestgradelevel>=".
1.243 albertel 1287: $env{'form.lowestgradelevel'}."<br />\n";
1.216 matthew 1288: }
1.243 albertel 1289: if ($env{'form.highestgradelevel'} &&
1290: $env{'form.highestgradelevel'} ne '0' &&
1291: $env{'form.highestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1292: push(@queries,
1.243 albertel 1293: '(highestgradelevel<='.$env{'form.highestgradelevel'}.')');
1.216 matthew 1294: $pretty_search_string.="highestgradelevel<=".
1.243 albertel 1295: $env{'form.highestgradelevel'}."<br />\n";
1.216 matthew 1296: }
1.243 albertel 1297: if ($env{'form.language'} and $env{'form.language'} ne 'any') {
1298: push @queries,"(language like \"$env{'form.language'}\")";
1.143 matthew 1299: $pretty_search_string.=$font."language</font>= ".
1.243 albertel 1300: &Apache::loncommon::languagedescription($env{'form.language'}).
1.143 matthew 1301: "<br />\n";
1.58 harris41 1302: }
1.243 albertel 1303: if ($env{'form.copyright'} and $env{'form.copyright'} ne 'any') {
1304: push @queries,"(copyright like \"$env{'form.copyright'}\")";
1.143 matthew 1305: $pretty_search_string.=$font."copyright</font> = ".
1.243 albertel 1306: &Apache::loncommon::copyrightdescription($env{'form.copyright'}).
1.230 matthew 1307: "<br />\n";
1.58 harris41 1308: }
1.276 raeburn 1309: if ($env{'form.area'} eq 'portfolio') {
1310: #
1311: # Added metadata fields
1312: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1.279 raeburn 1313: my $field = $env{'form.addedfield_'.$i};
1314: $field =~ s/^\s*(\S*)\s*$/$1/;
1315: $field =~ s/\W/_/g;
1316: $field =~ tr/A-Z/a-z/;
1317: if ($field ne '') {
1318: my $value = $env{'form.addedvalues_'.$i};
1319: if ($value ne '') {
1.280 albertel 1320: $value =~ s/'/''/g; #' stupid emacs
1.279 raeburn 1321: my ($error,$query) =
1322: &process_phrase_input($value,0,'pf.value');
1323: if (!defined($error)) {
1324: push(@queries,"pf.field = '$field' AND $query");
1325: $pretty_search_string .=
1326: $font.$field.'</font>: '.
1327: $env{'form.addedvalues_'.$i}.'<br />';
1328: }
1329: } else {
1330: push(@queries,"pf.field = '$field' AND pf.value IS NULL");
1331: }
1.276 raeburn 1332: }
1333: }
1334: } else {
1335: #
1336: # Statistics
1337: foreach my $field (@StatsFields,@EvalFields) {
1338: my ($min,$max);
1339: if (exists($env{'form.'.$field.'_min'}) &&
1340: $env{'form.'.$field.'_min'} ne '') {
1341: $min = $env{'form.'.$field.'_min'};
1342: }
1343: if (exists($env{'form.'.$field.'_max'}) &&
1344: $env{'form.'.$field.'_max'} ne '') {
1345: $max = $env{'form.'.$field.'_max'};
1346: }
1347: next if (! defined($max) && ! defined($min));
1348: if (defined($min) && defined($max)) {
1349: ($min,$max) = sort {$a <=>$b} ($min,$max);
1350: }
1351: if (defined($min) && $min =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1352: push(@queries,'('.$field.'>'.$min.')');
1353: $pretty_search_string.=$font.$field.'</font>>'.$min.'<br />';
1354: }
1355: if (defined($max) && $max =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1356: push(@queries,'('.$field.'<'.$max.')');
1357: $pretty_search_string.=$font.$field.'</font><'.$max.'<br />';
1358: }
1.217 matthew 1359: }
1360: }
1361: #
1.90 harris41 1362: # Evaluate date windows
1.216 matthew 1363: my $cafter =
1364: &Apache::lonhtmlcommon::get_date_from_form('creationdate1');
1365: my $cbefore =
1366: &Apache::lonhtmlcommon::get_date_from_form('creationdate2');
1367: if ($cafter > $cbefore) {
1368: my $tmp = $cafter;
1369: $cafter = $cbefore;
1370: $cbefore = $tmp;
1371: }
1372: my $mafter =
1373: &Apache::lonhtmlcommon::get_date_from_form('revisiondate1');
1374: my $mbefore =
1375: &Apache::lonhtmlcommon::get_date_from_form('revisiondate2');
1376: if ($mafter > $mbefore) {
1377: my $tmp = $mafter;
1378: $mafter = $mbefore;
1379: $mbefore = $tmp;
1380: }
1381: my ($datequery,$error,$prettydate)=&build_date_queries($cafter,$cbefore,
1382: $mafter,$mbefore);
1383: if (defined($error)) {
1384: &output_date_error($r,$error,$closebutton,$hidden_fields);
1385: } elsif (defined($datequery)) {
1.143 matthew 1386: # Here is where you would set up pretty_search_string to output
1387: # date query information.
1.216 matthew 1388: $pretty_search_string .= '<br />'.$prettydate.'<br />';
1.60 harris41 1389: push @queries,$datequery;
1390: }
1.204 matthew 1391: #
1.90 harris41 1392: # Process form information for custom metadata querying
1.134 matthew 1393: my $customquery=undef;
1.204 matthew 1394: ##
1395: ## The custom metadata search was removed q long time ago mostly
1396: ## because I was unable to figureout exactly how it worked and could
1397: ## not imagine people actually using it. MH
1398: ##
1.243 albertel 1399: # if ($env{'form.custommetadata'}) {
1.204 matthew 1400: # $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".
1.243 albertel 1401: # $env{'form.custommetadata'}."</b><br />\n";
1.204 matthew 1402: # $customquery=&build_custommetadata_query('custommetadata',
1.243 albertel 1403: # $env{'form.custommetadata'});
1.204 matthew 1404: # }
1.134 matthew 1405: my $customshow=undef;
1.243 albertel 1406: # if ($env{'form.customshow'}) {
1.204 matthew 1407: # $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".
1.243 albertel 1408: # $env{'form.customshow'}."</b><br />\n";
1409: # $customshow=$env{'form.customshow'};
1.204 matthew 1410: # $customshow=~s/[^\w\s]//g;
1411: # my @fields=split(/\s+/,$customshow);
1412: # $customshow=join(" ",@fields);
1413: # }
1414: ##
1.132 matthew 1415: ## Deal with restrictions to given domains
1416: ##
1.336 raeburn 1417: my ($libraries_to_query,$pretty_domains_string,$domains_to_query) =
1418: &parse_domain_restrictions();
1.254 www 1419: if ($pretty_domains_string) {
1.251 www 1420: $pretty_search_string .= $pretty_domains_string."<br />\n";
1421: }
1.180 matthew 1422: #
1423: if (@queries) {
1.277 raeburn 1424: if ($env{'form.area'} eq 'portfolio') {
1.300 raeburn 1425: $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 1426: } else {
1427: $query="SELECT * FROM metadata WHERE (".join(") AND (",@queries).')';
1428: }
1.180 matthew 1429: } elsif ($customquery) {
1430: $query = '';
1431: }
1.241 matthew 1432: #&Apache::lonnet::logthis('advanced query = '.$/.$query);
1.180 matthew 1433: return ($query,$customquery,$customshow,$libraries_to_query,
1.336 raeburn 1434: $pretty_search_string,$domains_to_query);
1.180 matthew 1435: }
1436:
1437: sub parse_domain_restrictions {
1.132 matthew 1438: my $libraries_to_query = undef;
1.336 raeburn 1439: my $domains_to_query = undef;
1.243 albertel 1440: # $env{'form.domains'} can be either a scalar or an array reference.
1.132 matthew 1441: # We need an array.
1.243 albertel 1442: if (! exists($env{'form.domains'}) || $env{'form.domains'} eq '') {
1.240 matthew 1443: return (undef,'',undef);
1.180 matthew 1444: }
1.245 albertel 1445: my @allowed_domains = &Apache::loncommon::get_env_multiple('form.domains');
1.204 matthew 1446: #
1.132 matthew 1447: my %domain_hash = ();
1.143 matthew 1448: my $pretty_domains_string;
1.132 matthew 1449: foreach (@allowed_domains) {
1450: $domain_hash{$_}++;
1451: }
1.143 matthew 1452: if ($domain_hash{'any'}) {
1.273 www 1453: $pretty_domains_string = &mt("in all LON-CAPA domains.");
1.143 matthew 1454: } else {
1455: if (@allowed_domains > 1) {
1.273 www 1456: $pretty_domains_string = &mt("in LON-CAPA domains:");
1.143 matthew 1457: } else {
1.273 www 1458: $pretty_domains_string = &mt("in LON-CAPA domain ");
1.143 matthew 1459: }
1460: foreach (sort @allowed_domains) {
1.152 matthew 1461: $pretty_domains_string .= "<b>".$_."</b> ";
1.132 matthew 1462: }
1.336 raeburn 1463: my %library_servers = &Apache::lonnet::get_unique_servers(\@allowed_domains,
1464: 'library');
1465: my (%older_library_servers,%okdoms,%domains_for_id);
1466: map { $okdoms{$_} = 1; } @allowed_domains;
1467: foreach my $key (keys(%library_servers)) {
1468: if (&Apache::lonnet::get_server_loncaparev('',$key) =~ /^\'?(\d+)\.(\d+)/) {
1469: my $major = $1;
1470: my $minor = $2;
1471: if (($major < 2) || (($major == 2) && ($minor < 11))) {
1472: map { $older_library_servers{$_} = 1; }
1473: &Apache::lonnet::machine_ids($library_servers{$key});
1474: } else {
1475: my %possdoms;
1476: map { $possdoms{$_}=1 if ($okdoms{$_}); }
1477: &Apache::lonnet::machine_domains($library_servers{$key});
1478: $domains_for_id{$key} = join(',',sort(keys(%possdoms)));
1479: }
1480: }
1481: }
1482: my %servers = (%library_servers,%older_library_servers);
1.280 albertel 1483: $libraries_to_query = [keys(%servers)];
1.336 raeburn 1484: $domains_to_query = \%domains_for_id;
1.132 matthew 1485: }
1.239 matthew 1486: return ($libraries_to_query,
1.336 raeburn 1487: $pretty_domains_string,
1488: $domains_to_query);
1.18 harris41 1489: }
1490:
1.122 matthew 1491: ######################################################################
1492: ######################################################################
1493:
1494: =pod
1495:
1.134 matthew 1496: =item &parse_basic_search()
1.122 matthew 1497:
1.134 matthew 1498: Parse the basic search form and return a scalar containing an sql query.
1.126 matthew 1499:
1.122 matthew 1500: =cut
1501:
1502: ######################################################################
1503: ######################################################################
1.134 matthew 1504: sub parse_basic_search {
1.145 matthew 1505: my ($r,$closebutton)=@_;
1.204 matthew 1506: #
1.64 harris41 1507: # Clean up fields for safety
1508: for my $field ('basicexp') {
1.300 raeburn 1509: $env{"form.$field"}=~s/[^\w\s\'\"\!\(\)\-\*]//g;
1.64 harris41 1510: }
1.117 matthew 1511: foreach ('mode','form','element') {
1512: # is this required? Hmmm.
1.243 albertel 1513: next unless (exists($env{"form.$_"}));
1.265 www 1514: $env{"form.$_"}=&unescape($env{"form.$_"});
1.243 albertel 1515: $env{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1516: }
1.336 raeburn 1517: my ($libraries_to_query,$pretty_domains_string,$domains_to_query) =
1518: &parse_domain_restrictions();
1.204 matthew 1519: #
1520: # Check to see if enough of a query is filled in
1.243 albertel 1521: my $search_string = $env{'form.basicexp'};
1.220 matthew 1522: if (! &filled($search_string)) {
1.151 matthew 1523: &output_blank_field_error($r,$closebutton,'phase=disp_basic');
1.24 harris41 1524: return OK;
1525: }
1.228 matthew 1526: my $pretty_search_string=$search_string;
1.224 matthew 1527: my @Queries;
1.276 raeburn 1528: my @fields = ('title','author','subject','notes','abstract','keywords');
1529: my $searchfield;
1530: if ($env{'form.area'} eq 'portfolio') {
1531: $searchfield = 'concat_ws(" ",pm.'.join(',pm.',@fields).')';
1532: } else {
1533: $searchfield = 'concat_ws(" ",'.join(',',@fields).')';
1534: }
1.228 matthew 1535: my ($error,$SQLQuery) = &process_phrase_input($search_string,
1.243 albertel 1536: $env{'form.related'},
1.228 matthew 1537: $searchfield);
1538: if ($error) {
1539: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic',
1540: '','basicexp');
1541: return;
1.141 matthew 1542: }
1.228 matthew 1543: push(@Queries,$SQLQuery);
1544: #foreach my $q (@Queries) {
1545: # &Apache::lonnet::logthis(' '.$q);
1546: #}
1.276 raeburn 1547: my $final_query;
1548: if ($env{'form.area'} eq 'portfolio') {
1.300 raeburn 1549: $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 1550: } else {
1551: $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries);
1552: }
1.204 matthew 1553: #
1.273 www 1554: if ($env{'form.related'}) {
1555: $pretty_search_string.=' '.&mt('(including related words)');
1556: }
1.180 matthew 1557: if (defined($pretty_domains_string) && $pretty_domains_string ne '') {
1558: $pretty_search_string .= ' '.$pretty_domains_string;
1559: }
1.143 matthew 1560: $pretty_search_string .= "<br />\n";
1.225 matthew 1561: $pretty_search_string =~ s:^<br /> and ::;
1.276 raeburn 1562: &Apache::lonnet::logthis('simple search final query = '.$/.$final_query);
1.183 matthew 1563: return ($final_query,$pretty_search_string,
1.336 raeburn 1564: $libraries_to_query,$domains_to_query);
1.22 harris41 1565: }
1566:
1.228 matthew 1567:
1568: ###############################################################
1569: ###############################################################
1570:
1571: my @Phrases;
1572:
1573: sub concat {
1574: my ($item) = @_;
1575: my $results = '';
1576: foreach (@$item) {
1577: if (ref($_) eq 'ARRAY') {
1578: $results .= join(' ',@$_);
1579: }
1580: }
1581: return $results;
1582: }
1583:
1.224 matthew 1584: sub process_phrase_input {
1.228 matthew 1585: my ($phrase,$related,$field)=@_;
1586: #&Apache::lonnet::logthis('phrase = :'.$phrase.':');
1587: my $grammar = <<'ENDGRAMMAR';
1588: searchphrase:
1589: expression /^\Z/ {
1590: # &Apache::lonsearchcat::print_item(\@item,0);
1591: [@item];
1592: }
1593: expression:
1594: phrase(s) {
1595: [@item];
1596: }
1597: phrase:
1598: orword {
1599: [@item];
1600: }
1601: | andword {
1602: [@item];
1603: }
1604: | minusword {
1605: unshift(@::Phrases,$item[1]->[0]);
1606: unshift(@::Phrases,$item[1]->[1]);
1607: [@item];
1608: }
1609: | word {
1610: unshift(@::Phrases,$item[1]);
1611: [@item];
1612: }
1613: #
1614: orword:
1615: word 'OR' phrase {
1616: unshift(@::Phrases,'OR');
1617: unshift(@::Phrases,$item[1]);
1618: [@item];
1619: }
1620: | word 'or' phrase {
1621: unshift(@::Phrases,'OR');
1622: unshift(@::Phrases,$item[1]);
1623: [@item];
1624: }
1625: | minusword 'OR' phrase {
1626: unshift(@::Phrases,'OR');
1627: unshift(@::Phrases,$item[1]->[0]);
1628: unshift(@::Phrases,$item[1]->[1]);
1629: [@item];
1630: }
1631: | minusword 'or' phrase {
1632: unshift(@::Phrases,'OR');
1633: unshift(@::Phrases,$item[1]->[0]);
1634: unshift(@::Phrases,$item[1]->[1]);
1635: [@item];
1636: }
1637: andword:
1638: word phrase {
1639: unshift(@::Phrases,'AND');
1640: unshift(@::Phrases,$item[1]);
1641: [@item];
1642: }
1643: | minusword phrase {
1644: unshift(@::Phrases,'AND');
1645: unshift(@::Phrases,$item[1]->[0]);
1646: unshift(@::Phrases,$item[1]->[1]);
1647: [@item];
1648: }
1649: #
1650: minusword:
1651: '-' word {
1652: [$item[2],'NOT'];
1653: }
1654: word:
1655: "'" term(s) "'" {
1656: &Apache::lonsearchcat::concat(\@item);
1657: }
1658: | '"' term(s) '"' {
1659: &Apache::lonsearchcat::concat(\@item);
1660: }
1661: | term {
1662: $item[1];
1663: }
1664: term:
1.284 albertel 1665: /[\w\Q:!@#$%^&*()+_=|{}<>,.;\\\/?\E\-]+/ {
1.228 matthew 1666: $item[1];
1667: }
1668: ENDGRAMMAR
1669: #
1670: # The end result of parsing the phrase with the grammar is an array
1671: # @::Phrases.
1672: # $phrase = "gene splicing" or cat -> "gene splicing","OR","cat"
1673: # $phrase = "genetic engineering" -dna ->
1674: # "genetic engineering","AND","NOT","dna"
1675: # $phrase = cat or dog -poodle -> "cat","OR","dog","AND","NOT","poodle"
1676: undef(@::Phrases);
1677: my $p = new Parse::RecDescent($grammar);
1678: if (! defined($p->searchphrase($phrase))) {
1679: &Apache::lonnet::logthis('lonsearchcat:unable to process:'.$phrase);
1680: return 'Unable to process phrase '.$phrase;
1681: }
1682: #
1683: # Go through the phrases and make sense of them.
1684: # Apply modifiers NOT OR and AND to the phrases.
1685: my @NewPhrases;
1686: while(@::Phrases) {
1687: my $phrase = shift(@::Phrases);
1688: # &Apache::lonnet::logthis('phrase = '.$phrase);
1689: my $phrasedata;
1690: if ($phrase =~ /^(NOT|OR|AND)$/) {
1691: if ($phrase eq 'OR') {
1692: $phrasedata->{'or'}++;
1693: if (! @::Phrases) { $phrasedata = undef; last; }
1694: $phrase = shift(@::Phrases);
1695: } elsif ($phrase eq 'AND') {
1696: $phrasedata->{'and'}++;
1697: if (! @::Phrases) { $phrasedata = undef; last; }
1698: $phrase = shift(@::Phrases);
1.224 matthew 1699: }
1.228 matthew 1700: if ($phrase eq 'NOT') {
1701: $phrasedata->{'negate'}++;
1702: if (! @::Phrases) { $phrasedata = undef; last; }
1703: $phrase = shift(@::Phrases);
1.224 matthew 1704: }
1.228 matthew 1705: }
1706: $phrasedata->{'phrase'} = $phrase;
1707: if ($related) {
1708: my @NewWords;
1709: (undef,@NewWords) = &related_version($phrasedata->{'phrase'});
1710: $phrasedata->{'related_words'} = \@NewWords;
1711: }
1712: push(@NewPhrases,$phrasedata);
1713: }
1714: #
1715: # Actually build the sql query from the phrases
1716: my $SQLQuery;
1717: foreach my $phrase (@NewPhrases) {
1718: my $query;
1719: if ($phrase->{'negate'}) {
1720: $query .= $field.' NOT LIKE "%'.$phrase->{'phrase'}.'%"';
1.224 matthew 1721: } else {
1.228 matthew 1722: $query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"';
1723: }
1724: foreach my $related (@{$phrase->{'related_words'}}) {
1725: if ($phrase->{'negate'}) {
1726: $query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"';
1727: } else {
1728: $query .= ' OR '.$field.' LIKE "%'.$related.'%"';
1729: }
1730: }
1731: if ($SQLQuery) {
1732: if ($phrase->{'or'}) {
1733: $SQLQuery .= ' OR ('.$query.')';
1734: } else {
1735: $SQLQuery .= ' AND ('.$query.')';
1.224 matthew 1736: }
1.228 matthew 1737: } else {
1738: $SQLQuery = '('.$query.')';
1.224 matthew 1739: }
1740: }
1741: #
1.228 matthew 1742: # &Apache::lonnet::logthis("SQLQuery = $SQLQuery");
1.224 matthew 1743: #
1.228 matthew 1744: return undef,$SQLQuery;
1.224 matthew 1745: }
1746:
1.122 matthew 1747: ######################################################################
1748: ######################################################################
1749:
1750: =pod
1751:
1.204 matthew 1752: =item &related_version()
1.142 matthew 1753:
1754: Modifies an input string to include related words. Words in the string
1755: are replaced with parenthesized lists of 'OR'd words. For example
1756: "torque" is replaced with "(torque OR word1 OR word2 OR ...)".
1757:
1758: Note: Using this twice on a string is probably silly.
1759:
1760: =cut
1761:
1762: ######################################################################
1763: ######################################################################
1764: sub related_version {
1.224 matthew 1765: my ($word) = @_;
1766: return (undef) if (lc($word) =~ /\b(or|and|not)\b/);
1767: my @Words = &Apache::loncommon::get_related_words($word);
1768: # Only use 4 related words
1769: @Words = ($#Words>4? @Words[0..4] : @Words);
1770: my $result = join " OR ", ($word,@Words);
1771: return $result,sort(@Words);
1.142 matthew 1772: }
1773:
1.98 harris41 1774:
1.122 matthew 1775: ######################################################################
1776: ######################################################################
1777:
1778: =pod
1779:
1780: =item &build_custommetadata_query()
1781:
1.126 matthew 1782: Constructs a custom metadata query using a rather heinous regular
1783: expression.
1784:
1.122 matthew 1785: =cut
1786:
1787: ######################################################################
1788: ######################################################################
1.98 harris41 1789: sub build_custommetadata_query {
1790: my ($field_name,$logic_statement)=@_;
1791: my $q=new Text::Query('abc',
1792: -parse => 'Text::Query::ParseAdvanced',
1793: -build => 'Text::Query::BuildAdvancedString');
1794: $q->prepare($logic_statement);
1795: my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'};
1796: # quick fix to change literal into xml tag-matching
1797: # will eventually have to write a separate builder module
1.122 matthew 1798: # wordone=wordtwo becomes\<wordone\>[^\<] *wordtwo[^\<]*\<\/wordone\>
1799: $matchexp =~ s/(\w+)\\=([\w\\\+]+)?# wordone=wordtwo is changed to
1800: /\\<$1\\>?# \<wordone\>
1801: \[\^\\<\]?# [^\<]
1802: \*$2\[\^\\<\]?# *wordtwo[^\<]
1803: \*\\<\\\/$1\\>?# *\<\/wordone\>
1804: /g;
1.98 harris41 1805: return $matchexp;
1806: }
1807:
1.22 harris41 1808:
1.122 matthew 1809: ######################################################################
1810: ######################################################################
1811:
1812: =pod
1813:
1814: =item &build_date_queries()
1815:
1.126 matthew 1816: Builds a SQL logic query to check time/date entries.
1817: Also reports errors (check for /^Incorrect/).
1818:
1.122 matthew 1819: =cut
1820:
1821: ######################################################################
1822: ######################################################################
1.98 harris41 1823: sub build_date_queries {
1.216 matthew 1824: my ($cafter,$cbefore,$mafter,$mbefore) = @_;
1825: my ($result,$error,$pretty_string);
1826: #
1827: # Verify the input
1828: if (! defined($cafter) && ! defined($cbefore) &&
1829: ! defined($mafter) && ! defined($mbefore)) {
1830: # This is an okay situation, so return undef for the error
1831: return (undef,undef,undef);
1832: }
1833: if ((defined($cafter) && ! defined($cbefore)) ||
1834: (defined($cbefore) && ! defined($cafter))) {
1835: # This is bad, so let them know
1.333 raeburn 1836: $error = &mt('Incorrect entry for the creation date. '.
1.216 matthew 1837: 'You must specify both the beginning and ending dates.');
1838: }
1839: if (! defined($error) &&
1840: ((defined($mafter) && ! defined($mbefore)) ||
1841: (defined($mbefore) && ! defined($mafter)))) {
1842: # This is also bad, so let them know
1.333 raeburn 1843: $error = &mt('Incorrect entry for the last revision date. '.
1.216 matthew 1844: 'You must specify both the beginning and ending dates.');
1.98 harris41 1845: }
1.216 matthew 1846: if (! defined($error)) {
1847: #
1848: # Build the queries
1849: my @queries;
1850: if (defined($cbefore) && defined($cafter)) {
1851: my (undef,undef,undef,$caday,$camon,$cayear) = localtime($cafter);
1852: my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore);
1853: # Correct for year being relative to 1900
1854: $cayear+=1900; $cbyear+=1900;
1855: my $cquery=
1856: '(creationdate BETWEEN '.
1857: "'".$cayear.'-'.$camon.'-'.$caday."'".
1858: ' AND '.
1859: "'".$cbyear.'-'.$cbmon.'-'.$cbday." 23:59:59')";
1860: $pretty_string .= '<br />' if (defined($pretty_string));
1861: $pretty_string .=
1862: &mt('created between [_1] and [_2]',
1863: &Apache::lonlocal::locallocaltime($cafter),
1864: &Apache::lonlocal::locallocaltime($cbefore+24*60*60-1));
1865: push(@queries,$cquery);
1866: $pretty_string =~ s/ 00:00:00//g;
1867: }
1868: if (defined($mbefore) && defined($mafter)) {
1869: my (undef,undef,undef,$maday,$mamon,$mayear) = localtime($mafter);
1870: my (undef,undef,undef,$mbday,$mbmon,$mbyear) = localtime($mbefore);
1871: # Correct for year being relative to 1900
1872: $mayear+=1900; $mbyear+=1900;
1873: my $mquery=
1874: '(lastrevisiondate BETWEEN '.
1875: "'".$mayear.'-'.$mamon.'-'.$maday."'".
1876: ' AND '.
1877: "'".$mbyear.'-'.$mbmon.'-'.$mbday." 23:59:59')";
1878: push(@queries,$mquery);
1879: $pretty_string .= '<br />' if (defined($pretty_string));
1880: $pretty_string .=
1881: &mt('last revised between [_1] and [_2]',
1882: &Apache::lonlocal::locallocaltime($mafter),
1883: &Apache::lonlocal::locallocaltime($mbefore+24*60*60-1));
1884: $pretty_string =~ s/ 00:00:00//g;
1885: }
1886: if (@queries) {
1887: $result .= join(" AND ",@queries);
1888: }
1.98 harris41 1889: }
1.216 matthew 1890: return ($result,$error,$pretty_string);
1.18 harris41 1891: }
1.6 harris41 1892:
1.122 matthew 1893: ######################################################################
1894: ######################################################################
1895:
1.144 matthew 1896: =pod
1897:
1898: =item ©right_check()
1899:
1.204 matthew 1900: Inputs: $Metadata, a hash pointer of metadata for a resource.
1901:
1902: Returns: 1 if the resource is available to the user making the query,
1903: 0 otherwise.
1904:
1.144 matthew 1905: =cut
1906:
1907: ######################################################################
1908: ######################################################################
1909: sub copyright_check {
1910: my $Metadata = shift;
1911: # Check copyright tags and skip results the user cannot use
1912: my (undef,undef,$resdom,$resname) = split('/',
1913: $Metadata->{'url'});
1914: # Check for priv
1.348 ! musolffc 1915: if ($Metadata->{'copyright'} eq 'priv') {
! 1916: unless (($env{'user.name'} eq $resname) &&
! 1917: ($env{'user.domain'} eq $resdom)) {
! 1918: return 0;
! 1919: }
1.144 matthew 1920: }
1921: # Check for domain
1922: if (($Metadata->{'copyright'} eq 'domain') &&
1.243 albertel 1923: ($env{'user.domain'} ne $resdom)) {
1.144 matthew 1924: return 0;
1925: }
1.294 www 1926: # Check for custom rights
1927: if ($Metadata->{'copyright'} eq 'custom') {
1.296 raeburn 1928: return &Apache::lonnet::customaccess('bre',$Metadata->{'url'});
1.294 www 1929: }
1.144 matthew 1930: return 1;
1931: }
1932:
1.151 matthew 1933: ######################################################################
1934: ######################################################################
1935:
1936: =pod
1937:
1.204 matthew 1938: =item &ensure_db_and_table()
1.151 matthew 1939:
1940: Ensure we can get lonmysql to connect to the database and the table we
1941: need exists.
1942:
1943: Inputs: $r, table id
1944:
1945: Returns: undef on error, 1 if the table exists.
1946:
1947: =cut
1948:
1949: ######################################################################
1950: ######################################################################
1951: sub ensure_db_and_table {
1952: my ($r,$table) = @_;
1953: ##
1954: ## Sanity check the table id.
1955: ##
1956: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.334 bisitz 1957: $r->print(&Apache::loncommon::start_page('Error')
1.313 bisitz 1958: .'<p class="LC_error">'
1959: .&mt('Unable to retrieve search results. '
1960: .'Unable to determine the table results were saved in.')
1.334 bisitz 1961: .'</p>'
1962: . '<p>'.&mt('Internal info:').'</p>'
1963: .'<pre>'.$table.'</pre>'
1.313 bisitz 1964: .&Apache::loncommon::end_page()
1965: );
1.151 matthew 1966: return undef;
1967: }
1968: ##
1969: ## Make sure we can connect and the table exists.
1970: ##
1971: my $connection_result = &Apache::lonmysql::connect_to_db();
1972: if (!defined($connection_result)) {
1.332 bisitz 1973: $r->print(
1974: '<p class="LC_error">'
1975: .&mt('Unable to connect to the MySQL database where your results are saved.')
1976: .'</p>'
1977: .&Apache::loncommon::end_page()
1978: );
1.151 matthew 1979: &Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to".
1980: " connect to database.");
1981: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
1982: return undef;
1983: }
1984: my $table_check = &Apache::lonmysql::check_table($table);
1985: if (! defined($table_check)) {
1.332 bisitz 1986: $r->print(
1987: '<p class="LC_error">'
1988: .&mt('A MySQL error has occurred.')
1989: .'</p></form>'
1990: .&Apache::loncommon::end_page());
1.151 matthew 1991: &Apache::lonnet::logthis("lonmysql was unable to determine the status".
1992: " of table ".$table);
1993: return undef;
1994: } elsif (! $table_check) {
1.332 bisitz 1995: $r->print(
1996: '<p class="LC_error">'
1997: .&mt('The table of results could not be found.')
1998: .'</p>'
1999: );
1.151 matthew 2000: &Apache::lonnet::logthis("The user requested a table, ".$table.
2001: ", that could not be found.");
2002: return undef;
2003: }
2004: return 1;
2005: }
2006:
2007: ######################################################################
2008: ######################################################################
2009:
2010: =pod
2011:
1.204 matthew 2012: =item &print_sort_form()
2013:
2014: The sort feature is not implemented at this time. This form just prints
2015: a link to change the search query.
1.151 matthew 2016:
2017: =cut
2018:
2019: ######################################################################
2020: ######################################################################
2021: sub print_sort_form {
2022: my ($r,$pretty_query_string) = @_;
1.224 matthew 2023:
1.151 matthew 2024: ##
1.187 www 2025: my %SortableFields=&Apache::lonlocal::texthash(
2026: id => 'Default',
1.151 matthew 2027: title => 'Title',
2028: author => 'Author',
2029: subject => 'Subject',
2030: url => 'URL',
2031: version => 'Version Number',
2032: mime => 'Mime type',
2033: lang => 'Language',
2034: owner => 'Owner/Publisher',
2035: copyright => 'Copyright',
2036: hostname => 'Host',
2037: creationdate => 'Creation Date',
1.187 www 2038: lastrevisiondate => 'Revision Date'
1.151 matthew 2039: );
2040: ##
1.243 albertel 2041: my $table = $env{'form.table'};
1.151 matthew 2042: return if (! &ensure_db_and_table($r,$table));
2043: ##
2044: ## Get the number of results
2045: ##
2046: my $total_results = &Apache::lonmysql::number_of_rows($table);
2047: if (! defined($total_results)) {
1.256 albertel 2048: $r->print("A MySQL error has occurred.</form>".
2049: &Apache::loncommon::end_page());
1.151 matthew 2050: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2051: " of rows in table ".$table);
2052: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2053: return;
2054: }
1.346 damieng 2055: my $start_page = &Apache::loncommon::start_page('Results',undef);
1.257 albertel 2056: my $breadcrumbs=
1.263 albertel 2057: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2058: $env{'form.catalogmode'} ne 'import');
1.257 albertel 2059:
2060: my $result = <<END;
2061: $start_page
2062: $breadcrumbs
1.267 www 2063: <form name="statusform" action="" method="post" target="_top">
1.268 www 2064: <input type="hidden" name="catalogmode" value="import" />
1.270 www 2065: <input type="hidden" name="acts" value="" />
1.151 matthew 2066: END
2067:
2068: #<h2>Sort Results</h2>
2069: #Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();">
1.243 albertel 2070: # $env{'form.sortby'} = 'id' if (! defined($env{'form.sortby'}));
1.151 matthew 2071: # foreach (keys(%SortableFields)) {
2072: # $result.="<option name=\"$_\"";
1.243 albertel 2073: # if ($_ eq $env{'form.sortby'}) {
1.151 matthew 2074: # $result.=" selected ";
2075: # }
2076: # $result.=" >$SortableFields{$_}</option>\n";
2077: # }
2078: # $result.="</select>\n";
2079: my $revise = &revise_button();
1.289 bisitz 2080: $result.='<p>'
1.337 raeburn 2081: .&mt('Total of [quant,_1,match,matches] to your query.',$total_results)
1.289 bisitz 2082: .' '.$revise.'</p>'
2083: .'<p>'.&mt('Search: ').$pretty_query_string
2084: .'</p></form>';
1.256 albertel 2085: $r->print($result.&Apache::loncommon::end_page());
1.151 matthew 2086: return;
2087: }
2088:
1.144 matthew 2089: #####################################################################
2090: #####################################################################
2091:
2092: =pod
2093:
2094: =item MySQL Table Description
2095:
2096: MySQL table creation requires a precise description of the data to be
2097: stored. The use of the correct types to hold data is vital to efficient
2098: storage and quick retrieval of records. The columns must be described in
2099: the following format:
2100:
2101: =cut
2102:
1.170 matthew 2103: #####################################################################
2104: #####################################################################
1.204 matthew 2105: #
2106: # These should probably be scoped but I don't have time right now...
2107: #
2108: my @Datatypes;
2109: my @Fullindicies;
1.147 matthew 2110:
1.144 matthew 2111: ######################################################################
2112: ######################################################################
2113:
2114: =pod
2115:
1.146 matthew 2116: =item &create_results_table()
2117:
2118: Creates the table of search results by calling lonmysql. Stores the
1.243 albertel 2119: table id in $env{'form.table'}
1.146 matthew 2120:
1.276 raeburn 2121: Inputs: search area - either res or portfolio
1.146 matthew 2122:
2123: Returns: the identifier of the table on success, undef on error.
2124:
2125: =cut
2126:
2127: ######################################################################
2128: ######################################################################
1.204 matthew 2129: sub set_up_table_structure {
1.276 raeburn 2130: my ($tabletype) = @_;
1.204 matthew 2131: my ($datatypes,$fullindicies) =
1.276 raeburn 2132: &LONCAPA::lonmetadata::describe_metadata_storage($tabletype);
1.212 matthew 2133: # Copy the table description before modifying it...
2134: @Datatypes = @{$datatypes};
2135: unshift(@Datatypes,{name => 'id',
1.204 matthew 2136: type => 'MEDIUMINT',
2137: restrictions => 'UNSIGNED NOT NULL',
2138: primary_key => 'yes',
2139: auto_inc => 'yes' });
2140: @Fullindicies = @{$fullindicies};
2141: return;
2142: }
2143:
1.146 matthew 2144: sub create_results_table {
1.276 raeburn 2145: my ($area) = @_;
2146: if ($area eq 'portfolio') {
2147: &set_up_table_structure('portfolio_search');
2148: } else {
2149: &set_up_table_structure('metadata');
2150: }
1.146 matthew 2151: my $table = &Apache::lonmysql::create_table
1.170 matthew 2152: ( { columns => \@Datatypes,
1.172 matthew 2153: FULLTEXT => [{'columns' => \@Fullindicies},],
1.146 matthew 2154: } );
2155: if (defined($table)) {
1.243 albertel 2156: $env{'form.table'} = $table;
1.146 matthew 2157: return $table;
2158: }
2159: return undef; # Error...
2160: }
1.148 matthew 2161:
1.146 matthew 2162: ######################################################################
2163: ######################################################################
2164:
2165: =pod
2166:
1.150 matthew 2167: =item Search Status update functions
1.144 matthew 2168:
1.150 matthew 2169: Each of the following functions changes the values of one of the
2170: input fields used to display the search status to the user. The names
2171: should be explanatory.
1.144 matthew 2172:
1.150 matthew 2173: Inputs: Apache request handler ($r), text to display.
1.148 matthew 2174:
1.150 matthew 2175: Returns: Nothing.
1.148 matthew 2176:
2177: =over 4
2178:
2179: =item &update_count_status()
2180:
1.150 matthew 2181: =item &update_status()
1.148 matthew 2182:
1.150 matthew 2183: =item &update_seconds()
1.148 matthew 2184:
2185: =back
2186:
2187: =cut
2188:
2189: ######################################################################
2190: ######################################################################
2191: sub update_count_status {
2192: my ($r,$text) = @_;
2193: $text =~ s/\'/\\\'/g;
1.313 bisitz 2194: $r->print(<<SCRIPT);
2195: <script type="text/javascript">
2196: // <![CDATA[
2197: document.statusform.count.value = ' $text'
2198: // ]]>
2199: </script>
2200: SCRIPT
2201:
1.148 matthew 2202: $r->rflush();
2203: }
2204:
1.150 matthew 2205: sub update_status {
1.148 matthew 2206: my ($r,$text) = @_;
2207: $text =~ s/\'/\\\'/g;
1.313 bisitz 2208: $r->print(<<SCRIPT);
2209: <script type="text/javascript">
2210: // <![CDATA[
2211: document.statusform.status.value = ' $text'
2212: // ]]>
2213: </script>
2214: SCRIPT
2215:
1.148 matthew 2216: $r->rflush();
2217: }
2218:
1.345 damieng 2219: sub reload_result_frame {
2220: my ($r) = @_;
2221: my $newloc = '/adm/searchcat?phase=results&persistent_db_id='.
2222: $env{'form.persistent_db_id'};
2223: $r->print(<<SCRIPT);
2224: <script type="text/javascript">
1.346 damieng 2225: parent.update_results("$newloc");
1.345 damieng 2226: </script>
2227: SCRIPT
2228:
2229: $r->rflush();
2230: }
2231:
1.214 matthew 2232: {
1.345 damieng 2233: my $max_time = 60; # seconds for the search to complete
1.214 matthew 2234: my $start_time = 0;
2235: my $last_time = 0;
2236:
2237: sub reset_timing {
2238: $start_time = 0;
2239: $last_time = 0;
2240: }
2241:
2242: sub time_left {
2243: if ($start_time == 0) {
2244: $start_time = time;
2245: }
2246: my $time_left = $max_time - (time - $start_time);
2247: $time_left = 0 if ($time_left < 0);
2248: return $time_left;
2249: }
2250:
1.150 matthew 2251: sub update_seconds {
1.214 matthew 2252: my ($r) = @_;
2253: my $time = &time_left();
2254: if (($last_time-$time) > 0) {
1.313 bisitz 2255: $r->print(<<SCRIPT);
2256: <script type="text/javascript">
2257: // <![CDATA[
2258: document.statusform.seconds.value = '$time'
2259: // ]]>
2260: </script>
2261: SCRIPT
2262:
1.214 matthew 2263: $r->rflush();
2264: }
2265: $last_time = $time;
2266: }
2267:
1.148 matthew 2268: }
2269:
2270: ######################################################################
2271: ######################################################################
2272:
2273: =pod
2274:
1.204 matthew 2275: =item &revise_button()
1.151 matthew 2276:
2277: Inputs: None
2278:
2279: Returns: html string for a 'revise search' button.
2280:
2281: =cut
2282:
2283: ######################################################################
2284: ######################################################################
2285: sub revise_button {
1.289 bisitz 2286: my $revisetext = &mt('Revise search');
1.151 matthew 2287: my $revise_phase = 'disp_basic';
1.243 albertel 2288: $revise_phase = 'disp_adv' if ($env{'form.searchmode'} eq 'advanced');
1.151 matthew 2289: my $newloc = '/adm/searchcat'.
1.243 albertel 2290: '?persistent_db_id='.$env{'form.persistent_db_id'}.
1.309 bisitz 2291: '&cleargroupsort=1'.
2292: '&phase='.$revise_phase;
1.289 bisitz 2293: my $result = qq{<input type="button" value="$revisetext" name="revise"} .
1.313 bisitz 2294: qq{ onclick="parent.location='$newloc';" /> };
1.151 matthew 2295: return $result;
2296: }
2297:
2298: ######################################################################
2299: ######################################################################
2300:
2301: =pod
2302:
1.204 matthew 2303: =item &run_search()
2304:
2305: Executes a search query by sending it the the other servers and putting the
2306: results into MySQL.
1.144 matthew 2307:
2308: =cut
2309:
2310: ######################################################################
2311: ######################################################################
2312: sub run_search {
1.276 raeburn 2313: my ($r,$query,$customquery,$customshow,$serverlist,
1.336 raeburn 2314: $pretty_string,$area,$domainsref) = @_;
1.276 raeburn 2315: my $tabletype = 'metadata';
2316: if ($area eq 'portfolio') {
2317: $tabletype = 'portfolio_search';
2318: }
1.150 matthew 2319: my $connection = $r->connection;
1.144 matthew 2320: #
1.146 matthew 2321: # Print run_search header
2322: #
1.307 bisitz 2323: my $start_page = &Apache::loncommon::start_page('Search Status',undef);
1.263 albertel 2324: my $breadcrumbs =
2325: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2326: $env{'form.catalogmode'} ne 'import');
1.151 matthew 2327: $r->print(<<END);
1.257 albertel 2328: $start_page
2329: $breadcrumbs
1.151 matthew 2330: END
1.230 matthew 2331: # Remove leading and trailing <br />
2332: $pretty_string =~ s:^\s*<br />::i;
2333: $pretty_string =~ s:(<br />)*\s*$::im;
2334: my @Lines = split("<br />",$pretty_string);
2335: # I keep getting blank items at the end of the list, hence the following:
2336: while ($Lines[-1] =~ /^\s*$/ && @Lines) {
2337: pop(@Lines);
2338: }
1.152 matthew 2339: if (@Lines > 2) {
1.298 bisitz 2340: $pretty_string = join '<br />',(@Lines[0..2],'...<br />');
1.151 matthew 2341: }
1.214 matthew 2342: $r->print(&mt("Search: [_1]",$pretty_string));
1.146 matthew 2343: $r->rflush();
2344: #
1.145 matthew 2345: # Determine the servers we need to contact.
1.336 raeburn 2346: my (@Servers_to_contact,%domains_by_server);
1.144 matthew 2347: if (defined($serverlist)) {
1.152 matthew 2348: if (ref($serverlist) eq 'ARRAY') {
2349: @Servers_to_contact = @$serverlist;
2350: } else {
2351: @Servers_to_contact = ($serverlist);
2352: }
1.336 raeburn 2353: if (ref($domainsref) eq 'HASH') {
2354: foreach my $server (@Servers_to_contact) {
2355: $domains_by_server{$server} = $domainsref->{$server};
2356: }
2357: }
1.144 matthew 2358: } else {
1.336 raeburn 2359: my %library_servers = &Apache::lonnet::unique_library();
2360: my (%all_library_servers, %older_library_servers);
2361: foreach my $key (keys(%library_servers)) {
2362: if (&Apache::lonnet::get_server_loncaparev('',$key) =~ /^\'?(\d+)\.(\d+)/) {
2363: my $major = $1;
2364: my $minor = $2;
2365: if (($major < 2) || (($major == 2) && ($minor < 11))) {
1.338 raeburn 2366: map { $older_library_servers{$_} = 1; }
1.336 raeburn 2367: &Apache::lonnet::machine_ids($library_servers{$key});
2368: }
2369: }
2370: }
2371: %all_library_servers = (%library_servers,%older_library_servers);
1.281 albertel 2372: @Servers_to_contact = sort(keys(%all_library_servers));
1.336 raeburn 2373: foreach my $server (@Servers_to_contact) {
2374: my %possdoms;
2375: map { $possdoms{$_}=1; } &Apache::lonnet::machine_domains($all_library_servers{$server});
1.338 raeburn 2376: $domains_by_server{$server} =
1.336 raeburn 2377: join(',',sort(&Apache::lonnet::machine_domains($all_library_servers{$server})));
2378: }
1.144 matthew 2379: }
2380: my %Server_status;
1.214 matthew 2381: #
2382: # Check on the mysql table we will use to store results.
1.243 albertel 2383: my $table =$env{'form.table'};
1.150 matthew 2384: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.286 albertel 2385: $r->print("Unable to determine table id to save search results in.".
1.256 albertel 2386: "The search has been aborted.".
2387: &Apache::loncommon::end_page());
1.147 matthew 2388: return;
2389: }
2390: my $table_status = &Apache::lonmysql::check_table($table);
2391: if (! defined($table_status)) {
1.256 albertel 2392: $r->print("Unable to determine status of table.".
2393: &Apache::loncommon::end_page());
1.147 matthew 2394: &Apache::lonnet::logthis("Bogus table id of $table for ".
1.243 albertel 2395: "$env{'user.name'} @ $env{'user.domain'}");
1.147 matthew 2396: &Apache::lonnet::logthis("lonmysql error = ".
1.144 matthew 2397: &Apache::lonmysql::get_error());
1.147 matthew 2398: return;
2399: }
2400: if (! $table_status) {
1.204 matthew 2401: &Apache::lonnet::logthis("lonmysql error = ".
2402: &Apache::lonmysql::get_error());
2403: &Apache::lonnet::logthis("lonmysql debug = ".
2404: &Apache::lonmysql::get_debug());
2405: &Apache::lonnet::logthis('table status = "'.$table_status.'"');
1.147 matthew 2406: $r->print("The table id,$table, we tried to use is invalid.".
1.256 albertel 2407: "The search has been aborted.".
2408: &Apache::loncommon::end_page());
1.144 matthew 2409: return;
2410: }
1.145 matthew 2411: ##
1.146 matthew 2412: ## Prepare for the big loop.
1.144 matthew 2413: my $hitcountsum;
1.345 damieng 2414: my $oldhitcountsum;
1.276 raeburn 2415: my %matches;
1.144 matthew 2416: my $server;
2417: my $status;
1.151 matthew 2418: my $revise = &revise_button();
1.299 raeburn 2419: $r->print('<form name="statusform" action="" method="post">'."\n".
2420: '<input type="hidden" name="acts" value="" />'."\n".
2421: '<table border="0"><tr><td>'."\n".
2422: &Apache::loncommon::start_data_table());
1.298 bisitz 2423: $r->print(&Apache::loncommon::start_data_table_header_row()
2424: .'<th>'.&mt('Status').'</th>'
2425: .'<th>'.&mt('Total Matches').'</th>'
2426: .'<th>'.&mt('Time Remaining').'</th>'
1.299 raeburn 2427: .&Apache::loncommon::end_data_table_header_row()
2428: .&Apache::loncommon::start_data_table_row()
1.298 bisitz 2429: .'<td><input type="text" name="status" value="" size="50" readonly="readonly" /></td>'
2430: .'<td><input type="text" name="count" value="" size="10" readonly="readonly" /></td>'
2431: .'<td><input type="text" name="seconds" value="" size="8" readonly="readonly" /></td>'
1.299 raeburn 2432: .&Apache::loncommon::end_data_table_row()
2433: .&Apache::loncommon::end_data_table()
2434: .'</td><td> </td><td>'.$revise.'</td></tr></table></form>');
1.148 matthew 2435: $r->rflush();
1.214 matthew 2436: &reset_timing();
2437: &update_seconds($r);
2438: &update_status($r,&mt('contacting [_1]',$Servers_to_contact[0]));
2439: while (&time_left() &&
1.144 matthew 2440: ((@Servers_to_contact) || keys(%Server_status))) {
1.214 matthew 2441: &update_seconds($r);
2442: #
2443: # Send out a search request
1.144 matthew 2444: if (@Servers_to_contact) {
2445: # Contact one server
2446: my $server = shift(@Servers_to_contact);
1.214 matthew 2447: &update_status($r,&mt('contacting [_1]',$server));
1.144 matthew 2448: my $reply=&Apache::lonnet::metadata_query($query,$customquery,
1.336 raeburn 2449: $customshow,[$server],\%domains_by_server);
1.144 matthew 2450: ($server) = keys(%$reply);
2451: $Server_status{$server} = $reply->{$server};
2452: } else {
1.150 matthew 2453: # wait a sec. to give time for files to be written
2454: # This sleep statement is here instead of outside the else
2455: # block because we do not want to pause if we have servers
2456: # left to contact.
1.183 matthew 2457: if (scalar (keys(%Server_status))) {
2458: &update_status($r,
1.214 matthew 2459: &mt('waiting on [_1]',join(' ',keys(%Server_status))));
1.183 matthew 2460: }
1.346 damieng 2461: sleep(0.1);
1.144 matthew 2462: }
1.159 matthew 2463: #
2464: # Loop through the servers we have contacted but do not
2465: # have results from yet, looking for results.
1.228 matthew 2466: foreach my $server (keys(%Server_status)) {
1.150 matthew 2467: last if ($connection->aborted());
1.214 matthew 2468: &update_seconds($r);
1.228 matthew 2469: my $status = $Server_status{$server};
1.144 matthew 2470: if ($status eq 'con_lost') {
2471: delete ($Server_status{$server});
2472: next;
2473: }
1.276 raeburn 2474: $status=~s|/||g;
1.330 foxr 2475:
2476:
2477:
2478: my $datafile=LONCAPA::tempdir().$status;
1.144 matthew 2479: if (-e $datafile && ! -e "$datafile.end") {
1.214 matthew 2480: &update_status($r,&mt('Receiving results from [_1]',$server));
1.144 matthew 2481: next;
2482: }
1.150 matthew 2483: last if ($connection->aborted());
1.144 matthew 2484: if (-e "$datafile.end") {
1.214 matthew 2485: &update_status($r,&mt('Reading results from [_1]',$server));
1.144 matthew 2486: if (-z "$datafile") {
2487: delete($Server_status{$server});
2488: next;
2489: }
2490: my $fh;
2491: if (!($fh=Apache::File->new($datafile))) {
1.146 matthew 2492: $r->print("Unable to open search results file for ".
1.145 matthew 2493: "server $server. Omitting from search");
1.150 matthew 2494: delete($Server_status{$server});
2495: next;
1.144 matthew 2496: }
2497: # Read in the whole file.
2498: while (my $result = <$fh>) {
1.150 matthew 2499: last if ($connection->aborted());
1.214 matthew 2500: #
2501: # Records are stored one per line
1.144 matthew 2502: chomp($result);
1.214 matthew 2503: next if (! $result);
2504: #
1.144 matthew 2505: # Parse the result.
1.276 raeburn 2506: my %Fields = &parse_raw_result($result,$server,$tabletype);
1.144 matthew 2507: $Fields{'hostname'} = $server;
1.214 matthew 2508: #
2509: # Skip based on copyright
1.144 matthew 2510: next if (! ©right_check(\%Fields));
1.248 www 2511:
1.276 raeburn 2512: if ($area eq 'portfolio') {
2513: next if (defined($matches{$Fields{'url'}}));
2514: # Skip if inaccessible
2515: next if (!&Apache::lonnet::portfolio_access($Fields{'url'}));
2516: $matches{$Fields{'url'}} = 1;
2517: }
1.214 matthew 2518: #
1.144 matthew 2519: # Store the result in the mysql database
2520: my $result = &Apache::lonmysql::store_row($table,\%Fields);
2521: if (! defined($result)) {
1.146 matthew 2522: $r->print(&Apache::lonmysql::get_error());
1.144 matthew 2523: }
1.214 matthew 2524: #
1.144 matthew 2525: $hitcountsum ++;
1.214 matthew 2526: &update_seconds($r);
1.150 matthew 2527: if ($hitcountsum % 50 == 0) {
2528: &update_count_status($r,$hitcountsum);
2529: }
1.214 matthew 2530: }
1.144 matthew 2531: $fh->close();
2532: # $server is only deleted if the results file has been
2533: # found and (successfully) opened. This may be a bad idea.
2534: delete($Server_status{$server});
2535: }
1.150 matthew 2536: last if ($connection->aborted());
1.345 damieng 2537: if ($oldhitcountsum < $hitcountsum) {
2538: &update_count_status($r,$hitcountsum);
2539: if ($hitcountsum <= $env{'form.show'}) {
2540: reload_result_frame($r);
2541: }
2542: $oldhitcountsum = $hitcountsum;
2543: }
1.144 matthew 2544: }
1.150 matthew 2545: last if ($connection->aborted());
1.214 matthew 2546: &update_seconds($r);
1.144 matthew 2547: }
1.313 bisitz 2548: &update_status($r,&mt('Search Complete on Server [_1]',$server));
1.214 matthew 2549: &update_seconds($r);
1.204 matthew 2550: #
1.214 matthew 2551: &Apache::lonmysql::disconnect_from_db(); # This is unneccessary
1.204 matthew 2552: #
1.144 matthew 2553: # We have run out of time or run out of servers to talk to and
1.214 matthew 2554: # results to get, so let the client know the top frame needs to be
2555: # loaded from /adm/searchcat
1.256 albertel 2556: $r->print(&Apache::loncommon::end_page());
1.267 www 2557: # if ($env{'form.catalogmode'} ne 'import') {
1.313 bisitz 2558: $r->print(<<SCRIPT);
2559: <script>
2560: window.location='/adm/searchcat?phase=sort&persistent_db_id=$env{'form.persistent_db_id'}';
2561: </script>
2562: SCRIPT
1.224 matthew 2563: # }
1.144 matthew 2564: return;
2565: }
2566:
2567: ######################################################################
2568: ######################################################################
1.204 matthew 2569:
1.144 matthew 2570: =pod
2571:
1.204 matthew 2572: =item &prev_next_buttons()
2573:
2574: Returns html for the previous and next buttons on the search results page.
1.144 matthew 2575:
2576: =cut
2577:
2578: ######################################################################
2579: ######################################################################
1.146 matthew 2580: sub prev_next_buttons {
1.145 matthew 2581: my ($current_min,$show,$total,$parms) = @_;
2582: return '' if ($show eq 'all'); # No links if you get them all at once.
1.214 matthew 2583: #
1.223 matthew 2584: # Create buttons
1.313 bisitz 2585: return '<p class="LC_nobreak">'
2586: .'<input type="submit" name="prev" value="<"'
2587: .' title="'.&mt('Previous').'" />'
2588: .' '
2589: .'<input type="submit" name="reload" value="'.&mt('Reload').'" />'
2590: .' '
2591: .'<input type="submit" name="next" value=">"'
2592: .' title="'.&mt('Next').'" />'
2593: .'</p>';
1.144 matthew 2594: }
1.204 matthew 2595:
1.144 matthew 2596: ######################################################################
2597: ######################################################################
2598:
2599: =pod
2600:
1.204 matthew 2601: =item &display_results()
2602:
2603: Prints the results out for selection and perusal.
1.144 matthew 2604:
2605: =cut
2606:
2607: ######################################################################
2608: ######################################################################
2609: sub display_results {
1.276 raeburn 2610: my ($r,$importbutton,$closebutton,$diropendb,$area) = @_;
1.150 matthew 2611: my $connection = $r->connection;
2612: $r->print(&search_results_header($importbutton,$closebutton));
1.144 matthew 2613: ##
2614: ## Set viewing function
2615: ##
1.243 albertel 2616: my $viewfunction = $Views{$env{'form.viewselect'}};
1.144 matthew 2617: if (!defined($viewfunction)) {
1.312 bisitz 2618: $r->print('<p class="LC_error">'
2619: .&mt('Internal Error - Bad view selected.')
2620: .'</p>'."\n");
1.144 matthew 2621: $r->rflush();
2622: return;
2623: }
2624: ##
1.158 matthew 2625: ## $checkbox_num is a count of the number of checkboxes output on the
1.267 www 2626: ## page this is used only during catalogmode=import.
1.158 matthew 2627: my $checkbox_num = 0;
2628: ##
1.144 matthew 2629: ## Get the catalog controls setup
2630: ##
1.146 matthew 2631: my $action = "/adm/searchcat?phase=results";
2632: ##
1.267 www 2633: ## Deal with import by opening the import db file.
2634: if ($env{'form.catalogmode'} eq 'import') {
1.146 matthew 2635: if (! tie(%groupsearch_db,'GDBM_File',$diropendb,
1.148 matthew 2636: &GDBM_WRCREAT(),0640)) {
1.345 damieng 2637: # NOTE: this can happen when a previous request to searchcat?phase=results gets interrupted
2638: # (%groupsearch_db is not untied)
1.312 bisitz 2639: $r->print('<p class="LC_error">'.
2640: &mt('Unable to save import results.').
2641: '</p>'.
2642: '</form>'.
1.256 albertel 2643: &Apache::loncommon::end_page());
1.146 matthew 2644: $r->rflush();
2645: return;
2646: }
1.345 damieng 2647: # untie %groupsearch_db if the connection gets aborted before the end
2648: $r->register_cleanup(sub {
2649: untie %groupsearch_db if (tied(%groupsearch_db));
2650: });
1.144 matthew 2651: }
1.145 matthew 2652: ##
2653: ## Prepare the table for querying
1.243 albertel 2654: my $table = $env{'form.table'};
1.151 matthew 2655: return if (! &ensure_db_and_table($r,$table));
1.145 matthew 2656: ##
2657: ## Get the number of results
2658: my $total_results = &Apache::lonmysql::number_of_rows($table);
2659: if (! defined($total_results)) {
1.312 bisitz 2660: $r->print('<p class="LC_error">'.
2661: &mt('A MySQL error has occurred.').
2662: '</p>'.
2663: '</form>'.
1.256 albertel 2664: &Apache::loncommon::end_page());
1.145 matthew 2665: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2666: " of rows in table ".$table);
2667: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2668: return;
2669: }
2670: ##
2671: ## Determine how many results we need to get
1.243 albertel 2672: $env{'form.start'} = 1 if (! exists($env{'form.start'}));
2673: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
2674: if (exists($env{'form.prev'})) {
2675: $env{'form.start'} -= $env{'form.show'};
2676: } elsif (exists($env{'form.next'})) {
2677: $env{'form.start'} += $env{'form.show'};
2678: }
2679: $env{'form.start'} = 1 if ($env{'form.start'}<1);
2680: $env{'form.start'} = $total_results if ($env{'form.start'}>$total_results);
2681: my $min = $env{'form.start'};
1.145 matthew 2682: my $max;
1.243 albertel 2683: if ($env{'form.show'} eq 'all') {
1.145 matthew 2684: $max = $total_results ;
2685: } else {
1.243 albertel 2686: $max = $min + $env{'form.show'} - 1;
1.146 matthew 2687: $max = $total_results if ($max > $total_results);
1.145 matthew 2688: }
2689: ##
1.223 matthew 2690: ## Output form elements
2691: $r->print(&hidden_field('table').
2692: &hidden_field('phase').
2693: &hidden_field('persistent_db_id').
1.276 raeburn 2694: &hidden_field('start').
2695: &hidden_field('area')
1.223 matthew 2696: );
1.232 matthew 2697: #
2698: # Build sorting selector
1.241 matthew 2699: my @fields =
2700: (
2701: {key=>'default' },
2702: {key=>'title' },
2703: {key =>'author' },
2704: {key =>'subject'},
2705: {key =>'url',desc=>'URL'},
2706: {key =>'keywords'},
2707: {key =>'language'},
2708: {key =>'creationdate'},
2709: {key =>'lastrevisiondate'},
2710: {key =>'owner'},
2711: {key =>'copyright'},
2712: {key =>'authorspace'},
2713: {key =>'lowestgradelevel'},
2714: {key =>'highestgradelevel'},
2715: {key =>'standards',desc=>'Standards'},
1.276 raeburn 2716: );
2717: if ($area eq 'portfolio') {
2718: push(@fields,
2719: (
2720: {key => 'scope'},
2721: {key => 'keynum'},
2722: ));
2723: } else {
2724: push(@fields,
2725: (
1.241 matthew 2726: {key =>'count',desc=>'Number of accesses'},
2727: {key =>'stdno',desc=>'Students Attempting'},
2728: {key =>'avetries',desc=>'Average Number of Tries'},
2729: {key =>'difficulty',desc=>'Mean Degree of Difficulty'},
2730: {key =>'disc',desc=>'Mean Degree of Discrimination'},
2731: {key =>'clear',desc=>'Evaluation: Clear'},
2732: {key =>'technical',desc=>'Evaluation: Technically Correct'},
2733: {key =>'correct',desc=>'Evaluation: Material is Correct'},
2734: {key =>'helpful',desc=>'Evaluation: Material is Helpful'},
2735: {key =>'depth',desc=>'Evaluation: Material has Depth'},
1.276 raeburn 2736: ));
2737: }
1.241 matthew 2738: my %fieldnames = &Apache::lonmeta::fieldnames();
2739: my @field_order;
2740: foreach my $field_data (@fields) {
2741: push(@field_order,$field_data->{'key'});
2742: if (! exists($field_data->{'desc'})) {
2743: $field_data->{'desc'}=$fieldnames{$field_data->{'key'}};
2744: } else {
2745: if (! defined($field_data->{'desc'})) {
2746: $field_data->{'desc'} = ucfirst($field_data->{'key'});
2747: }
2748: $field_data->{'desc'} = &mt($field_data->{'desc'});
2749: }
2750: }
2751: my %sort_fields = map {$_->{'key'},$_->{'desc'}} @fields;
2752: $sort_fields{'select_form_order'} = \@field_order;
1.248 www 2753: $env{'form.sortorder'} = 'desc' if (! exists($env{'form.sortorder'}));
1.276 raeburn 2754: if (! exists($env{'form.sortfield'})) {
2755: if ($area eq 'portfolio') {
2756: $env{'form.sortfield'} = 'owner';
2757: } else {
2758: $env{'form.sortfield'} = 'count';
2759: }
2760: }
1.248 www 2761: if (! exists($env{'form.sortorder'})) {
2762: if ($env{'form.sortfield'}=~/^(count|stdno|disc|clear|technical|correct|helpful)$/) {
2763: $env{'form.sortorder'}='desc';
2764: } else {
2765: $env{'form.sortorder'}='asc';
2766: }
2767: }
1.313 bisitz 2768: my $sortform = '<span class="LC_nobreak">'
2769: .&mt('Sort by:').' '
2770: .&Apache::loncommon::select_form($env{'form.sortfield'},
1.232 matthew 2771: 'sortfield',
1.324 raeburn 2772: \%sort_fields)
1.313 bisitz 2773: .' '
2774: .&Apache::loncommon::select_form($env{'form.sortorder'},
1.241 matthew 2775: 'sortorder',
1.324 raeburn 2776: {asc =>&mt('Ascending'),
1.241 matthew 2777: desc=>&mt('Descending')
1.324 raeburn 2778: })
1.313 bisitz 2779: .'</span>';
1.223 matthew 2780: ##
1.313 bisitz 2781: ## Display links for 'prev' and 'next' pages (if necessary) and Display Options
2782: $r->print('<fieldset>'."\n"
2783: .'<legend>'.&mt('Display Options').'</legend>'."\n"
2784: .$sortform
2785: .' '
2786: .&viewoptions()
2787: .'</fieldset>'
2788: .&prev_next_buttons($min,$env{'form.show'},$total_results)
2789: );
2790:
1.150 matthew 2791: if ($total_results == 0) {
1.345 damieng 2792: $r->print('<p class="LC_info">'.&mt('There are currently no results.').'</p>'.
1.256 albertel 2793: "</form>".
2794: &Apache::loncommon::end_page());
1.150 matthew 2795: return;
2796: } else {
1.312 bisitz 2797: $r->print('<div>'.
1.232 matthew 2798: mt('Results [_1] to [_2] out of [_3]',
2799: $min,$max,$total_results).
1.312 bisitz 2800: "</div>\n");
1.150 matthew 2801: }
1.145 matthew 2802: ##
2803: ## Get results from MySQL table
1.232 matthew 2804: my $sort_command = 'id>='.$min.' AND id<='.$max;
1.241 matthew 2805: my $order;
1.244 albertel 2806: if (exists($env{'form.sortorder'})) {
2807: if ($env{'form.sortorder'} eq 'asc') {
1.241 matthew 2808: $order = 'ASC';
1.244 albertel 2809: } elsif ($env{'form.sortorder'} eq 'desc') {
1.241 matthew 2810: $order = 'DESC';
2811: } else {
2812: $order = '';
2813: }
2814: } else {
2815: $order = '';
2816: }
1.244 albertel 2817: if ($env{'form.sortfield'} ne 'default' &&
2818: exists($sort_fields{$env{'form.sortfield'}})) {
2819: $sort_command = $env{'form.sortfield'}.' IS NOT NULL '.
2820: 'ORDER BY '.$env{'form.sortfield'}.' '.$order.
1.249 www 2821: ' LIMIT '.($min-1).','.($max-$min+1);
1.232 matthew 2822: }
2823: my @Results = &Apache::lonmysql::get_rows($table,$sort_command);
1.145 matthew 2824: ##
2825: ## Loop through the results and output them.
1.276 raeburn 2826: my $tabletype = 'metadata';
2827: if ($area eq 'portfolio') {
2828: $tabletype = 'portfolio_search';
2829: }
1.312 bisitz 2830: $r->print(&Apache::loncommon::start_data_table());
1.144 matthew 2831: foreach my $row (@Results) {
1.150 matthew 2832: if ($connection->aborted()) {
1.162 www 2833: &cleanup();
1.150 matthew 2834: return;
2835: }
1.276 raeburn 2836: my %Fields = %{&parse_row($tabletype,@$row)};
1.312 bisitz 2837: my $output;
1.210 matthew 2838: if (! defined($Fields{'title'}) || $Fields{'title'} eq '') {
2839: $Fields{'title'} = 'Untitled';
2840: }
1.158 matthew 2841: my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'},
2842: $Fields{'id'},$checkbox_num++);
1.144 matthew 2843: # Render the result into html
1.150 matthew 2844: $output.= &$viewfunction($prefix,%Fields);
1.145 matthew 2845: # Print them out as they come in.
1.312 bisitz 2846: $r->print(&Apache::loncommon::start_data_table_row()
2847: .'<td>'
2848: .$output
2849: .'</td>'
2850: .&Apache::loncommon::end_data_table_row()
2851: );
1.144 matthew 2852: $r->rflush();
2853: }
1.312 bisitz 2854: $r->print(&Apache::loncommon::end_data_table());
1.144 matthew 2855: if (@Results < 1) {
1.312 bisitz 2856: $r->print('<p class="LC_info">'
2857: .&mt('There were no results matching your query.')
2858: .'</p>');
1.147 matthew 2859: } else {
1.313 bisitz 2860: $r->print(
2861: &prev_next_buttons($min,$env{'form.show'},$total_results,
1.243 albertel 2862: "table=".$env{'form.table'}.
1.309 bisitz 2863: "&phase=results".
2864: "&persistent_db_id=".
1.243 albertel 2865: $env{'form.persistent_db_id'})
1.313 bisitz 2866: );
1.144 matthew 2867: }
1.256 albertel 2868: $r->print("</form>".&Apache::loncommon::end_page());
1.144 matthew 2869: $r->rflush();
1.150 matthew 2870: untie %groupsearch_db if (tied(%groupsearch_db));
1.144 matthew 2871: return;
2872: }
2873:
2874: ######################################################################
2875: ######################################################################
2876:
2877: =pod
2878:
1.158 matthew 2879: =item &catalogmode_output($title,$url,$fnum,$checkbox_num)
1.145 matthew 2880:
2881: Returns html needed for the various catalog modes. Gets inputs from
1.243 albertel 2882: $env{'form.catalogmode'}. Stores data in %groupsearch_db.
1.145 matthew 2883:
2884: =cut
2885:
2886: ######################################################################
2887: ######################################################################
2888: sub catalogmode_output {
2889: my $output = '';
1.158 matthew 2890: my ($title,$url,$fnum,$checkbox_num) = @_;
1.243 albertel 2891: if ($env{'form.catalogmode'} eq 'interactive') {
1.150 matthew 2892: $title=~ s/\'/\\\'/g;
1.243 albertel 2893: if ($env{'form.catalogmode'} eq 'interactive') {
1.145 matthew 2894: $output.=<<END
1.287 albertel 2895: <font size='-1'><input type="button" name="returnvalues" value="select"
1.313 bisitz 2896: onclick="javascript:select_data('$title','$url')" />
1.145 matthew 2897: </font>
2898: END
2899: }
1.267 www 2900: } elsif ($env{'form.catalogmode'} eq 'import') {
1.145 matthew 2901: $groupsearch_db{"pre_${fnum}_link"}=$url;
2902: $groupsearch_db{"pre_${fnum}_title"}=$title;
2903: $output.=<<END;
2904: <font size='-1'>
1.287 albertel 2905: <input type="checkbox" name="returnvalues" value="select"
1.313 bisitz 2906: onclick="javascript:queue($checkbox_num,$fnum)" />
1.145 matthew 2907: </font>
2908: END
2909: }
2910: return $output;
2911: }
2912: ######################################################################
2913: ######################################################################
2914:
2915: =pod
2916:
1.204 matthew 2917: =item &parse_row()
1.144 matthew 2918:
2919: Parse a row returned from the database.
2920:
2921: =cut
2922:
2923: ######################################################################
2924: ######################################################################
2925: sub parse_row {
1.276 raeburn 2926: my ($tabletype,@Row) = @_;
1.144 matthew 2927: my %Fields;
1.204 matthew 2928: if (! scalar(@Datatypes)) {
1.276 raeburn 2929: &set_up_table_structure($tabletype);
1.204 matthew 2930: }
1.144 matthew 2931: for (my $i=0;$i<=$#Row;$i++) {
1.265 www 2932: $Fields{$Datatypes[$i]->{'name'}}=&unescape($Row[$i]);
1.144 matthew 2933: }
2934: $Fields{'language'} =
1.198 www 2935: &Apache::loncommon::languagedescription($Fields{'language'});
1.144 matthew 2936: $Fields{'copyrighttag'} =
2937: &Apache::loncommon::copyrightdescription($Fields{'copyright'});
2938: $Fields{'mimetag'} =
2939: &Apache::loncommon::filedescription($Fields{'mime'});
2940: return \%Fields;
2941: }
1.126 matthew 2942:
2943: ###########################################################
2944: ###########################################################
2945:
2946: =pod
2947:
2948: =item &parse_raw_result()
2949:
2950: Takes a line from the file of results and parse it. Returns a hash
1.198 www 2951: with keys according to column labels
1.126 matthew 2952:
2953: In addition, the following tags are set by calling the appropriate
1.198 www 2954: lonnet function: 'language', 'copyrighttag', 'mimetag'.
1.126 matthew 2955:
2956: The 'title' field is set to "Untitled" if the title field is blank.
2957:
2958: 'abstract' and 'keywords' are truncated to 200 characters.
2959:
2960: =cut
2961:
2962: ###########################################################
2963: ###########################################################
2964: sub parse_raw_result {
1.276 raeburn 2965: my ($result,$hostname,$tabletype) = @_;
1.204 matthew 2966: # conclude from self to others regarding fields
1.206 matthew 2967: my %Fields=&LONCAPA::lonmetadata::metadata_col_to_hash
1.276 raeburn 2968: ($tabletype,
2969: map {
1.265 www 2970: &unescape($_);
1.276 raeburn 2971: } (split(/\,/,$result)) );
1.126 matthew 2972: return %Fields;
2973: }
2974:
2975: ###########################################################
2976: ###########################################################
2977:
2978: =pod
2979:
2980: =item &handle_custom_fields()
2981:
2982: =cut
2983:
2984: ###########################################################
2985: ###########################################################
2986: sub handle_custom_fields {
2987: my @results = @{shift()};
2988: my $customshow='';
2989: my $extrashow='';
2990: my @customfields;
1.243 albertel 2991: if ($env{'form.customshow'}) {
2992: $customshow=$env{'form.customshow'};
1.126 matthew 2993: $customshow=~s/[^\w\s]//g;
2994: my @fields=map {
2995: "<font color=\"#008000\">$_:</font><!-- $_ -->";
2996: } split(/\s+/,$customshow);
2997: @customfields=split(/\s+/,$customshow);
2998: if ($customshow) {
2999: $extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n";
3000: }
3001: }
3002: my $customdata='';
3003: my %customhash;
3004: foreach my $result (@results) {
3005: if ($result=~/^(custom\=.*)$/) { # grab all custom metadata
3006: my $tmp=$result;
3007: $tmp=~s/^custom\=//;
1.265 www 3008: my ($k,$v)=map {&unescape($_);
1.126 matthew 3009: } split(/\,/,$tmp);
3010: $customhash{$k}=$v;
3011: }
3012: }
3013: return ($extrashow,\@customfields,\%customhash);
1.41 harris41 3014: }
3015:
1.122 matthew 3016: ######################################################################
3017: ######################################################################
3018:
1.125 matthew 3019: =pod
3020:
1.204 matthew 3021: =item &search_results_header()
1.125 matthew 3022:
1.130 matthew 3023: Output the proper html headers and javascript code to deal with different
3024: calling modes.
3025:
1.243 albertel 3026: Takes most inputs directly from %env, except $mode.
1.130 matthew 3027:
3028: =over 4
3029:
3030: =item $mode is either (at this writing) 'Basic' or 'Advanced'
3031:
3032: =back
1.126 matthew 3033:
1.130 matthew 3034: The following environment variables are checked:
1.126 matthew 3035:
3036: =over 4
3037:
3038: =item 'form.catalogmode'
3039:
1.267 www 3040: Checked for 'interactive' and 'import'.
1.126 matthew 3041:
3042: =item 'form.mode'
3043:
3044: Checked for existance & 'edit' mode.
3045:
3046: =item 'form.form'
3047:
1.191 albertel 3048: Contains the name of the form that has the input fields to set
3049:
1.126 matthew 3050: =item 'form.element'
3051:
1.191 albertel 3052: the name of the input field to put the URL into
3053:
3054: =item 'form.titleelement'
3055:
3056: the name of the input field to put the title into
3057:
1.126 matthew 3058: =back
3059:
1.125 matthew 3060: =cut
3061:
3062: ######################################################################
3063: ######################################################################
3064: sub search_results_header {
1.150 matthew 3065: my ($importbutton,$closebutton) = @_;
1.256 albertel 3066:
1.257 albertel 3067: my $js;
1.125 matthew 3068: # output beginning of search page
3069: # conditional output of script functions dependent on the mode in
3070: # which the search was invoked
1.243 albertel 3071: if ($env{'form.catalogmode'} eq 'interactive'){
3072: if (! exists($env{'form.mode'}) || $env{'form.mode'} ne 'edit') {
1.257 albertel 3073: $js.=<<SCRIPT;
1.125 matthew 3074: <script type="text/javascript">
1.313 bisitz 3075: // <![CDATA[
1.125 matthew 3076: function select_data(title,url) {
3077: changeTitle(title);
3078: changeURL(url);
1.150 matthew 3079: parent.close();
1.125 matthew 3080: }
3081: function changeTitle(val) {
1.153 matthew 3082: if (parent.opener.inf.document.forms.resinfo.elements.t) {
3083: parent.opener.inf.document.forms.resinfo.elements.t.value=val;
1.125 matthew 3084: }
3085: }
3086: function changeURL(val) {
1.153 matthew 3087: if (parent.opener.inf.document.forms.resinfo.elements.u) {
3088: parent.opener.inf.document.forms.resinfo.elements.u.value=val;
1.125 matthew 3089: }
3090: }
1.313 bisitz 3091: // ]]>
1.125 matthew 3092: </script>
3093: SCRIPT
1.243 albertel 3094: } elsif ($env{'form.mode'} eq 'edit') {
3095: my $form = $env{'form.form'};
3096: my $element = $env{'form.element'};
3097: my $titleelement = $env{'form.titleelement'};
1.191 albertel 3098: my $changetitle;
3099: if (!$titleelement) {
3100: $changetitle='function changeTitle(val) {}';
3101: } else {
3102: $changetitle=<<END;
3103: function changeTitle(val) {
3104: if (parent.targetwin.document) {
3105: parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val;
3106: } else {
3107: var url = 'forms[\"$form\"].elements[\"$titleelement\"].value';
3108: alert("Unable to transfer data to "+url);
3109: }
3110: }
3111: END
3112: }
3113:
1.257 albertel 3114: $js.=<<SCRIPT;
1.125 matthew 3115: <script type="text/javascript">
1.313 bisitz 3116: // <![CDATA[
1.125 matthew 3117: function select_data(title,url) {
3118: changeURL(url);
1.191 albertel 3119: changeTitle(title);
1.150 matthew 3120: parent.close();
1.125 matthew 3121: }
1.191 albertel 3122: $changetitle
1.125 matthew 3123: function changeURL(val) {
1.150 matthew 3124: if (parent.targetwin.document) {
3125: parent.targetwin.document.forms["$form"].elements["$element"].value=val;
1.125 matthew 3126: } else {
3127: var url = 'forms[\"$form\"].elements[\"$element\"].value';
3128: alert("Unable to transfer data to "+url);
3129: }
3130: }
1.313 bisitz 3131: // ]]>
1.125 matthew 3132: </script>
3133: SCRIPT
3134: }
3135: }
1.288 albertel 3136: my $inhibit_menu = "&".&Apache::loncommon::inhibit_menu_check();
1.267 www 3137: $js.=<<SCRIPT if $env{'form.catalogmode'} eq 'import';
1.125 matthew 3138: <script type="text/javascript">
1.313 bisitz 3139: // <![CDATA[
1.158 matthew 3140: function queue(checkbox_num,val) {
1.185 matthew 3141: if (document.forms.results.returnvalues.length != "undefined" &&
3142: typeof(document.forms.results.returnvalues.length) == "number") {
3143: if (document.forms.results.returnvalues[checkbox_num].checked) {
1.270 www 3144: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3145: } else {
1.270 www 3146: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3147: }
1.150 matthew 3148: } else {
1.185 matthew 3149: if (document.forms.results.returnvalues.checked) {
1.270 www 3150: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3151: } else {
1.270 www 3152: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3153: }
1.150 matthew 3154: }
1.125 matthew 3155: }
3156: function select_group() {
1.150 matthew 3157: parent.window.location=
1.323 bisitz 3158: "/adm/groupsort?mode=$env{'form.mode'}&catalogmode=import$inhibit_menu&acts="+
1.270 www 3159: parent.statusframe.document.forms.statusform.elements.acts.value;
1.125 matthew 3160: }
1.313 bisitz 3161: // ]]>
1.125 matthew 3162: </script>
3163: SCRIPT
1.256 albertel 3164:
1.346 damieng 3165: $js.=<<SCRIPT;
3166: <script type="text/javascript">
3167: \$(document).ready(function() {
3168: parent.done_loading_results();
3169: });
3170: </script>
3171: SCRIPT
3172:
1.257 albertel 3173: my $start_page = &Apache::loncommon::start_page(undef,$js,
1.331 www 3174: {'only_body' =>1,
1.340 raeburn 3175: 'add_wishlist' =>1,
3176: 'add_modal' =>1});
1.258 albertel 3177: my $result=<<END;
1.257 albertel 3178: $start_page
1.267 www 3179: <form name="results" method="post" action="/adm/searchcat">
1.150 matthew 3180: $importbutton
1.130 matthew 3181: END
1.125 matthew 3182: return $result;
3183: }
3184:
1.150 matthew 3185: sub results_link {
1.309 bisitz 3186: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3187: "&persistent_db_id=".$env{'form.persistent_db_id'};
3188: my $results_link = $basic_link."&phase=results".
3189: "&pause=1"."&start=1";
1.150 matthew 3190: return $results_link;
3191: }
3192:
1.146 matthew 3193: ######################################################################
3194: ######################################################################
3195: sub print_frames_interface {
3196: my $r = shift;
1.309 bisitz 3197: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3198: "&persistent_db_id=".$env{'form.persistent_db_id'};
3199: my $run_search_link = $basic_link."&phase=run_search";
1.150 matthew 3200: my $results_link = &results_link();
1.260 albertel 3201: my $js = <<JS;
3202: <script type="text/javascript">
3203: var targetwin = opener;
3204: var queue = '';
1.346 damieng 3205:
3206: var loading_results = true;
3207: var need_reloading = false;
3208: var new_location;
3209: function update_results(newloc) {
3210: if (loading_results) {
3211: need_reloading = true;
3212: new_location = newloc;
3213: } else {
3214: loading_results = true;
3215: resultsframe.location = newloc;
3216: }
3217: }
3218: function done_loading_results() {
3219: loading_results = false;
3220: if (need_reloading) {
3221: need_reloading = false;
3222: update_results(new_location);
3223: }
3224: }
1.260 albertel 3225: </script>
3226: JS
1.262 albertel 3227:
3228: my $start_page =
3229: &Apache::loncommon::start_page('LON-CAPA Digital Library Search Results',
3230: $js,
3231: {'frameset' => 1,
3232: 'add_entries' => {
3233: 'rows' => "150,*",},});
3234: my $end_page =
3235: &Apache::loncommon::end_page({'frameset' => 1});
3236:
1.146 matthew 3237: my $result = <<"ENDFRAMES";
1.262 albertel 3238: $start_page
1.146 matthew 3239: <frame name="statusframe" src="$run_search_link">
3240: <frame name="resultsframe" src="$results_link">
1.262 albertel 3241: $end_page
1.146 matthew 3242: ENDFRAMES
3243:
3244: $r->print($result);
3245: return;
3246: }
3247:
3248: ######################################################################
3249: ######################################################################
1.125 matthew 3250:
1.224 matthew 3251: sub has_stat_data {
3252: my ($values) = @_;
3253: if ( (defined($values->{'count'}) && $values->{'count'} ne '') ||
3254: (defined($values->{'stdno'}) && $values->{'stdno'} ne '') ||
3255: (defined($values->{'disc'}) && $values->{'disc'} ne '') ||
3256: (defined($values->{'avetries'}) && $values->{'avetries'} ne '') ||
3257: (defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) {
3258: return 1;
3259: }
3260: return 0;
3261: }
3262:
3263: sub statfields {
3264: return ('count','stdno','disc','avetries','difficulty');
3265: }
3266:
3267: sub has_eval_data {
3268: my ($values) = @_;
3269: if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') ||
3270: (defined($values->{'technical'}) && $values->{'technical'} ne '') ||
3271: (defined($values->{'correct'}) && $values->{'correct'} ne '') ||
3272: (defined($values->{'helpful'}) && $values->{'helpful'} ne '') ||
3273: (defined($values->{'depth'}) && $values->{'depth'} ne '')) {
3274: return 1;
3275: }
3276: return 0;
3277: }
3278:
3279: sub evalfields {
3280: return ('clear','technical','correct','helpful','depth');
3281: }
3282:
3283: ######################################################################
3284: ######################################################################
3285:
1.332 bisitz 3286: sub display_tools {
3287: my ($title, $jumpurl) = @_;
3288: my $result;
3289: # Metadata
3290: $result.=
3291: &Apache::loncommon::modal_link(
3292: $jumpurl.'.meta?inhibitmenu=yes',
3293: '<img class="LC_icon" src="/res/adm/pages/catalog.png" alt="Info" />',
3294: 500,500,'_blank',undef,&mt('Metadata'));
3295: # Stored Links
3296: $result.=
3297: ' <a href="javascript:;"'.
3298: ' onclick="set_wishlistlink('."'$title','$jumpurl'".')" '.
3299: 'title="'.&mt('Save a link for this resource in your personal Stored Links repository').'">'.
3300: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
3301: 'alt="Stored Links" style="width:22px;"/></a>';
3302: return $result;
3303: }
3304:
3305: ######################################################################
3306: ######################################################################
3307:
1.122 matthew 3308: =pod
3309:
3310: =item Metadata Viewing Functions
3311:
3312: Output is a HTML-ified string.
1.204 matthew 3313:
1.122 matthew 3314: Input arguments are title, author, subject, url, keywords, version,
3315: notes, short abstract, mime, language, creation date,
1.126 matthew 3316: last revision date, owner, copyright, hostname, and
1.122 matthew 3317: extra custom metadata to show.
3318:
3319: =over 4
3320:
3321: =item &detailed_citation_view()
3322:
3323: =cut
3324:
3325: ######################################################################
3326: ######################################################################
1.50 harris41 3327: sub detailed_citation_view {
1.150 matthew 3328: my ($prefix,%values) = @_;
1.218 matthew 3329: my $result;
1.247 www 3330: my $jumpurl=$values{'url'};
1.275 albertel 3331: $jumpurl=~s|^/ext/|http://|;
1.332 bisitz 3332: $result .=
3333: '<b>'.$prefix.
1.312 bisitz 3334: '<img src="'.&Apache::loncommon::icon($values{'url'}).'" alt="" />'.' '.
1.288 albertel 3335: '<a href="'.$jumpurl.'?inhibitmenu=yes" '.
1.347 damieng 3336: 'target="preview" onclick="openMyModal(this.href, 500, 500, \'yes\');return false;">'.$values{'title'}."</a></b>\n".
1.332 bisitz 3337: &display_tools($values{'title'}, $jumpurl).
3338: "<p>\n".
3339: '<b>'.$values{'author'}.'</b>,'.
1.218 matthew 3340: ' <i>'.$values{'owner'}.'</i><br />';
3341: foreach my $field
3342: (
1.223 matthew 3343: { name=>'url',
3344: translate => '<b>URL:</b> [_1]',
3345: special => 'url link',},
1.218 matthew 3346: { name=>'subject',
3347: translate => '<b>Subject:</b> [_1]',},
3348: { name=>'keywords',
3349: translate => '<b>Keywords:</b> [_1]',},
3350: { name=>'notes',
3351: translate => '<b>Notes:</b> [_1]',},
3352: { name=>'mimetag',
3353: translate => '<b>MIME Type:</b> [_1]',},
3354: { name=>'standards',
3355: translate => '<b>Standards:</b>[_1]',},
3356: { name=>'copyrighttag',
3357: translate => '<b>Copyright/Distribution:</b> [_1]',},
1.223 matthew 3358: { name=>'count',
1.225 matthew 3359: format => "%d",
1.223 matthew 3360: translate => '<b>Access Count:</b> [_1]',},
1.218 matthew 3361: { name=>'stdno',
1.225 matthew 3362: format => "%d",
1.218 matthew 3363: translate => '<b>Number of Students:</b> [_1]',},
3364: { name=>'avetries',
1.225 matthew 3365: format => "%.2f",
1.218 matthew 3366: translate => '<b>Average Tries:</b> [_1]',},
3367: { name=>'disc',
1.225 matthew 3368: format => "%.2f",
1.218 matthew 3369: translate => '<b>Degree of Discrimination:</b> [_1]',},
3370: { name=>'difficulty',
1.225 matthew 3371: format => "%.2f",
1.218 matthew 3372: translate => '<b>Degree of Difficulty:</b> [_1]',},
3373: { name=>'clear',
1.225 matthew 3374: format => "%.2f",
1.218 matthew 3375: translate => '<b>Clear:</b> [_1]',},
3376: { name=>'depth',
1.225 matthew 3377: format => "%.2f",
1.218 matthew 3378: translate => '<b>Depth:</b> [_1]',},
3379: { name=>'helpful',
1.225 matthew 3380: format => "%.2f",
1.218 matthew 3381: translate => '<b>Helpful:</b> [_1]',},
3382: { name=>'correct',
1.225 matthew 3383: format => "%.2f",
1.224 matthew 3384: translate => '<b>Correct:</b> [_1]',},
1.218 matthew 3385: { name=>'technical',
1.225 matthew 3386: format => "%.2f",
1.218 matthew 3387: translate => '<b>Technical:</b> [_1]',},
1.225 matthew 3388: { name=>'comefrom_list',
3389: type => 'list',
3390: translate => 'Resources that lead up to this resource in maps',},
3391: { name=>'goto_list',
3392: type => 'list',
3393: translate => 'Resources that follow this resource in maps',},
1.226 matthew 3394: { name=>'sequsage_list',
1.225 matthew 3395: type => 'list',
3396: translate => 'Resources using or importing resource',},
1.218 matthew 3397: ) {
1.225 matthew 3398: next if (! exists($values{$field->{'name'}}) ||
3399: $values{$field->{'name'}} eq '');
3400: if (exists($field->{'type'}) && $field->{'type'} eq 'list') {
1.267 www 3401: $result .= '<b>'.&mt($field->{'translate'}).'</b>';
1.225 matthew 3402: foreach my $item (split(',',$values{$field->{'name'}})){
1.287 albertel 3403: $item = &Apache::lonnet::clutter($item);
1.319 bisitz 3404: $result .= '<br />'.&display_url($item,1).'<br />';
1.225 matthew 3405: }
3406: } elsif (exists($field->{'format'}) && $field->{'format'} ne ''){
3407: $result.= &mt($field->{'translate'},
3408: sprintf($field->{'format'},
1.230 matthew 3409: $values{$field->{'name'}}))."<br />\n";
1.225 matthew 3410: } else {
1.223 matthew 3411: if ($field->{'special'} eq 'url link') {
1.319 bisitz 3412: $result .= '<br />'.&display_url($jumpurl,1).'<br />';
1.223 matthew 3413: } else {
3414: $result.= &mt($field->{'translate'},
3415: $values{$field->{'name'}});
3416: }
3417: $result .= "<br />\n";
1.225 matthew 3418: }
1.223 matthew 3419: }
3420: $result .= "</p>";
3421: if (exists($values{'extrashow'}) && $values{'extrashow'} ne '') {
3422: $result .= '<p>'.$values{'extrashow'}.'</p>';
3423: }
3424: if (exists($values{'shortabstract'}) && $values{'shortabstract'} ne '') {
3425: $result .= '<p>'.$values{'shortabstract'}.'</p>';
1.218 matthew 3426: }
1.50 harris41 3427: return $result;
1.222 matthew 3428: }
3429:
1.255 www 3430: sub detailed_citation_preview {
3431: my ($prefix,%values)=@_;
1.312 bisitz 3432: return &detailed_citation_view($prefix,%values).
1.255 www 3433: '</td><td>'.
1.312 bisitz 3434: &Apache::lonindexer::showpreview($values{'url'});
1.255 www 3435: }
3436:
3437:
1.222 matthew 3438: ######################################################################
3439: ######################################################################
3440:
1.122 matthew 3441: =pod
3442:
3443: =item &summary_view()
3444:
3445: =cut
3446: ######################################################################
3447: ######################################################################
1.50 harris41 3448: sub summary_view {
1.150 matthew 3449: my ($prefix,%values) = @_;
1.192 albertel 3450: my $icon=&Apache::loncommon::icon($values{'url'});
1.312 bisitz 3451: my $result=qq{$prefix<img src="$icon" alt="" />};
1.244 albertel 3452: if (exists($env{'form.sortfield'}) &&
3453: $env{'form.sortfield'} !~ /^(default|
1.241 matthew 3454: author|
3455: url|
3456: title|
3457: owner|
3458: lastrevisiondate|
3459: copyright)$/x) {
1.244 albertel 3460: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3461: if (! defined($tmp)) { $tmp = 'undefined'; }
3462: $result .= ' '.$tmp.' ';
3463: }
1.247 www 3464: my $jumpurl=$values{'url'};
1.287 albertel 3465: $jumpurl=~s|^/ext/|http://|;
1.319 bisitz 3466: my $link = '<br />'.&display_url($jumpurl,1).'<br />';
1.332 bisitz 3467: $result .=
3468: '<a href="'.$jumpurl.'?inhibitmenu=yes"'.
1.347 damieng 3469: ' target="preview" onclick="openMyModal(this.href, 500, 500, \'yes\');return false;">'.$values{'title'}.'</a>'.
1.332 bisitz 3470: &display_tools($values{'title'}, $jumpurl).<<END;
1.325 wenzelju 3471: <br />
1.312 bisitz 3472: $link<br />
1.241 matthew 3473: $values{'author'}, $values{'owner'} -- $values{'lastrevisiondate'}<br />
1.126 matthew 3474: $values{'copyrighttag'}<br />
3475: $values{'extrashow'}
1.50 harris41 3476: END
3477: return $result;
3478: }
3479:
1.255 www 3480: sub summary_preview {
3481: my ($prefix,%values)=@_;
1.312 bisitz 3482: return &summary_view($prefix,%values).
1.255 www 3483: '</td><td>'.
1.312 bisitz 3484: &Apache::lonindexer::showpreview($values{'url'});
1.255 www 3485: }
3486:
1.122 matthew 3487: ######################################################################
3488: ######################################################################
3489:
3490: =pod
3491:
1.150 matthew 3492: =item &compact_view()
3493:
3494: =cut
3495:
3496: ######################################################################
3497: ######################################################################
3498: sub compact_view {
3499: my ($prefix,%values) = @_;
1.247 www 3500: my $jumpurl=$values{'url'};
1.287 albertel 3501: $jumpurl=~s|^/ext/|http://|;
3502:
1.319 bisitz 3503: my $link = &display_url($jumpurl,1);
1.287 albertel 3504:
1.223 matthew 3505: my $result =
1.306 bisitz 3506: $prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).'" alt="" />';
1.244 albertel 3507: if (exists($env{'form.sortfield'}) &&
3508: $env{'form.sortfield'} !~ /^(default|author|url|title)$/) {
3509: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3510: if (! defined($tmp)) { $tmp = 'undefined'; }
3511: $result .= ' '.$tmp.' ';
3512: }
1.287 albertel 3513: $jumpurl = &HTML::Entities::encode($jumpurl,'<>&"');
3514: $result.=' <span class="LC_nobreak">'.
1.347 damieng 3515: '<a href="'.$jumpurl.'?inhibitmenu=yes" target="preview" onclick="openMyModal(this.href, 500, 500, \'yes\');return false;">'.
1.287 albertel 3516: &HTML::Entities::encode($values{'title'},'<>&"').'</a></span> '.
1.332 bisitz 3517: &display_tools($values{'title'}, $jumpurl).
1.312 bisitz 3518: $link.' <b>'.$values{'author'}.'</b> ('.$values{'domain'}.')';
1.150 matthew 3519: return $result;
3520: }
3521:
1.287 albertel 3522: sub display_url {
1.319 bisitz 3523: my ($url,$skiplast) = @_;
1.287 albertel 3524: my $link;
3525: if ($url=~m|^/ext/|) {
3526: $url=~s|^/ext/|http://|;
3527: $link='<span class="LC_filename">'.$url.'</span>';
3528: } elsif ($url=~m{^(http://|/uploaded/)}) {
3529: $link='<span class="LC_filename">'.$url.'</span>';
3530: } else {
1.319 bisitz 3531: $link=&Apache::lonhtmlcommon::crumbs(
3532: $url,
3533: 'preview',
3534: '',
1.347 damieng 3535: '',
1.319 bisitz 3536: $skiplast).' ';
1.347 damieng 3537: # replace the links to open in a new window
3538: # (because the search opens in a new window, it gets
3539: # confusing when the links open a tab in the
3540: # parent window; ideally we should not force windows)
3541: $link =~ s/(href="[^"]*")/\1 onclick="window.open(this.href, '_blank', 'toolbar=1,location=1,menubar=0');return false;"/g;
1.287 albertel 3542: }
3543: return $link;
3544: }
1.150 matthew 3545:
3546: ######################################################################
3547: ######################################################################
3548:
3549: =pod
3550:
1.122 matthew 3551: =item &fielded_format_view()
3552:
3553: =cut
3554:
3555: ######################################################################
3556: ######################################################################
1.50 harris41 3557: sub fielded_format_view {
1.150 matthew 3558: my ($prefix,%values) = @_;
1.192 albertel 3559: my $icon=&Apache::loncommon::icon($values{'url'});
1.222 matthew 3560: my %Translated = &Apache::lonmeta::fieldnames();
1.247 www 3561: my $jumpurl=$values{'url'};
1.275 albertel 3562: $jumpurl=~s|^/ext/|http://|;
1.247 www 3563:
1.50 harris41 3564: my $result=<<END;
1.312 bisitz 3565: $prefix <img src="$icon" alt="" />
1.222 matthew 3566: <dl>
3567: <dt>URL:</dt>
1.288 albertel 3568: <dd><a href="$jumpurl?inhibitmenu=yes"
1.325 wenzelju 3569: target='preview'>$values{'url'}</a>
1.50 harris41 3570: END
1.332 bisitz 3571: $result .=
3572: &display_tools($values{'title'}, $jumpurl).'
3573: </dd>';
1.239 matthew 3574: foreach my $field ('title','author','domain','subject','keywords','notes',
1.222 matthew 3575: 'mimetag','language','creationdate','lastrevisiondate',
3576: 'owner','copyrighttag','hostname','abstract') {
3577: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3578: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3579: }
3580: if (&has_stat_data(\%values)) {
3581: foreach my $field (&statfields()) {
3582: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3583: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3584: }
3585: }
3586: if (&has_eval_data(\%values)) {
3587: foreach my $field (&evalfields()) {
3588: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3589: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3590: }
3591: }
3592: $result .= "</dl>\n";
3593: $result .= $values{'extrashow'};
1.50 harris41 3594: return $result;
3595: }
3596:
1.122 matthew 3597: ######################################################################
3598: ######################################################################
3599:
3600: =pod
3601:
3602: =item &xml_sgml_view()
3603:
3604: =back
3605:
3606: =cut
3607:
3608: ######################################################################
3609: ######################################################################
1.50 harris41 3610: sub xml_sgml_view {
1.150 matthew 3611: my ($prefix,%values) = @_;
1.222 matthew 3612: my $xml = '<LonCapaResource>'."\n";
3613: # The usual suspects
1.239 matthew 3614: foreach my $field ('url','title','author','subject','keywords','notes','domain') {
1.222 matthew 3615: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3616: }
3617: #
3618: $xml .= "<mimeInfo>\n";
3619: foreach my $field ('mime','mimetag') {
3620: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3621: }
3622: $xml .= "</mimeInfo>\n";
3623: #
3624: $xml .= "<languageInfo>\n";
3625: foreach my $field ('language','languagetag') {
3626: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3627: }
3628: $xml .= "</languageInfo>\n";
3629: #
3630: foreach my $field ('creationdate','lastrevisiondate','owner') {
3631: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3632: }
3633: #
3634: $xml .= "<copyrightInfo>\n";
3635: foreach my $field ('copyright','copyrighttag') {
3636: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3637: }
3638: $xml .= "</copyrightInfo>\n";
3639: $xml .= qq{<repositoryLocation>$values{'hostname'}</repositoryLocation>}.
3640: "\n";
3641: $xml .= qq{<shortabstract>$values{'shortabstract'}</shortabstract>}."\n";
3642: #
3643: if (&has_stat_data(\%values)){
3644: $xml .= "<problemstatistics>\n";
3645: foreach my $field (&statfields()) {
3646: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3647: }
3648: $xml .= "</problemstatistics>\n";
3649: }
3650: #
3651: if (&has_eval_data(\%values)) {
3652: $xml .= "<evaluation>\n";
3653: foreach my $field (&evalfields) {
3654: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3655: }
3656: $xml .= "</evaluation>\n";
3657: }
3658: #
3659: $xml .= "</LonCapaResource>\n";
1.212 matthew 3660: $xml = &HTML::Entities::encode($xml,'<>&');
1.50 harris41 3661: my $result=<<END;
1.150 matthew 3662: $prefix
1.56 harris41 3663: <pre>
1.212 matthew 3664: $xml
1.56 harris41 3665: </pre>
1.126 matthew 3666: $values{'extrashow'}
1.50 harris41 3667: END
3668: return $result;
1.60 harris41 3669: }
3670:
1.122 matthew 3671: ######################################################################
3672: ######################################################################
3673:
3674: =pod
3675:
3676: =item &filled() see if field is filled.
3677:
3678: =cut
3679:
3680: ######################################################################
3681: ######################################################################
1.98 harris41 3682: sub filled {
3683: my ($field)=@_;
3684: if ($field=~/\S/ && $field ne 'any') {
1.204 matthew 3685: return 1;
3686: } else {
3687: return 0;
1.61 harris41 3688: }
1.60 harris41 3689: }
3690:
1.122 matthew 3691: ######################################################################
3692: ######################################################################
3693:
3694: =pod
3695:
1.228 matthew 3696: =item &output_unparsed_phrase_error()
3697:
3698: =cut
3699:
3700: ######################################################################
3701: ######################################################################
3702: sub output_unparsed_phrase_error {
3703: my ($r,$closebutton,$parms,$hidden_fields,$field)=@_;
3704: my $errorstring;
3705: if ($field eq 'basicexp') {
1.312 bisitz 3706: $errorstring = &mt('Unable to understand the search phrase [_1]. Please modify your search.'
3707: ,'<i>'.$env{'form.basicexp'}.'</i>');
1.228 matthew 3708: } else {
1.312 bisitz 3709: $errorstring = &mt('Unable to understand the search phrase [_1]: [_2]'
3710: ,'<i>'.$field.'</i>'
3711: ,$env{'form.'.$field});
1.228 matthew 3712: }
3713: my $heading = &mt('Unparsed Field');
3714: my $revise = &mt('Revise search request');
3715: # make query information persistent to allow for subsequent revision
1.256 albertel 3716: my $start_page = &Apache::loncommon::start_page('Search');
3717: my $end_page = &Apache::loncommon::end_page();
1.228 matthew 3718: $r->print(<<ENDPAGE);
1.256 albertel 3719: $start_page
1.228 matthew 3720: <form method="post" action="/adm/searchcat">
3721: $hidden_fields
3722: $closebutton
3723: <hr />
3724: <h2>$heading</h2>
1.312 bisitz 3725: <p class="LC_warning">
1.228 matthew 3726: $errorstring
3727: </p>
3728: <p>
1.309 bisitz 3729: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.228 matthew 3730: </p>
1.256 albertel 3731: $end_page
1.228 matthew 3732: ENDPAGE
3733: }
3734:
3735: ######################################################################
3736: ######################################################################
3737:
3738: =pod
3739:
1.122 matthew 3740: =item &output_blank_field_error()
3741:
1.151 matthew 3742: Output a complete page that indicates the user has not filled in enough
3743: information to do a search.
3744:
3745: Inputs: $r (Apache request handle), $closebutton, $parms.
3746:
3747: Returns: nothing
3748:
3749: $parms is extra information to include in the 'Revise search request' link.
3750:
1.122 matthew 3751: =cut
3752:
3753: ######################################################################
3754: ######################################################################
1.98 harris41 3755: sub output_blank_field_error {
1.196 matthew 3756: my ($r,$closebutton,$parms,$hidden_fields)=@_;
1.312 bisitz 3757: 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 3758: my $revise = &mt('Revise Search Request');
1.315 bisitz 3759: my $heading = &mt('Unactionable Search Query');
1.256 albertel 3760: my $start_page = &Apache::loncommon::start_page('Search');
3761: my $end_page = &Apache::loncommon::end_page();
1.315 bisitz 3762: if ($closebutton) {
3763: $closebutton = '<p>'.$closebutton.'</p><hr />';
3764: } else {
3765: &Apache::lonhtmlcommon::add_breadcrumb
3766: ({href=>'',
3767: text=>$heading,});
3768: $start_page .= &Apache::lonhtmlcommon::breadcrumbs();
3769: }
3770:
1.228 matthew 3771: $r->print(<<ENDPAGE);
1.256 albertel 3772: $start_page
1.98 harris41 3773: <form method="post" action="/adm/searchcat">
1.145 matthew 3774: $hidden_fields
1.98 harris41 3775: $closebutton
1.315 bisitz 3776: </form>
1.228 matthew 3777: <h2>$heading</h2>
1.312 bisitz 3778: <p class="LC_warning">
1.228 matthew 3779: $errormsg
3780: </p>
3781: <p>
1.315 bisitz 3782: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.98 harris41 3783: </p>
1.256 albertel 3784: $end_page
1.228 matthew 3785: ENDPAGE
3786: return;
1.98 harris41 3787: }
3788:
1.122 matthew 3789: ######################################################################
3790: ######################################################################
3791:
3792: =pod
3793:
3794: =item &output_date_error()
3795:
3796: Output a full html page with an error message.
3797:
1.145 matthew 3798: Inputs:
3799:
3800: $r, the request pointer.
3801: $message, the error message for the user.
3802: $closebutton, the specialized close button needed for groupsearch.
3803:
1.122 matthew 3804: =cut
3805:
3806: ######################################################################
3807: ######################################################################
1.60 harris41 3808: sub output_date_error {
1.196 matthew 3809: my ($r,$message,$closebutton,$hidden_fields)=@_;
1.60 harris41 3810: # make query information persistent to allow for subsequent revision
1.256 albertel 3811: my $start_page = &Apache::loncommon::start_page('Search');
3812: my $end_page = &Apache::loncommon::end_page();
1.312 bisitz 3813: my $heading = &mt('Error');
1.122 matthew 3814: $r->print(<<RESULTS);
1.256 albertel 3815: $start_page
1.60 harris41 3816: <form method="post" action="/adm/searchcat">
1.145 matthew 3817: $hidden_fields
1.60 harris41 3818: <input type='button' value='Revise search request'
1.313 bisitz 3819: onclick='this.form.submit();' />
1.60 harris41 3820: $closebutton
1.312 bisitz 3821: </form>
1.98 harris41 3822: <hr />
1.312 bisitz 3823: <h3>$heading</h3>
3824: <p class="LC_error">
1.60 harris41 3825: $message
3826: </p>
1.256 albertel 3827: $end_page
1.60 harris41 3828: RESULTS
1.101 harris41 3829: }
3830:
1.122 matthew 3831: ######################################################################
3832: ######################################################################
3833:
3834: =pod
3835:
3836: =item &start_fresh_session()
3837:
1.142 matthew 3838: Cleans the global %groupsearch_db by removing all fields which begin with
1.122 matthew 3839: 'pre_' or 'store'.
3840:
3841: =cut
3842:
3843: ######################################################################
3844: ######################################################################
1.101 harris41 3845: sub start_fresh_session {
1.142 matthew 3846: delete $groupsearch_db{'mode_catalog'};
1.344 raeburn 3847: foreach (keys(%groupsearch_db)) {
1.101 harris41 3848: if ($_ =~ /^pre_/) {
1.142 matthew 3849: delete $groupsearch_db{$_};
1.101 harris41 3850: }
3851: if ($_ =~ /^store/) {
1.142 matthew 3852: delete $groupsearch_db{$_};
1.101 harris41 3853: }
1.109 harris41 3854: }
1.3 harris41 3855: }
1.1 www 3856:
3857: 1;
1.162 www 3858:
3859: sub cleanup {
1.163 www 3860: if (tied(%groupsearch_db)) {
3861: unless (untie(%groupsearch_db)) {
3862: &Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db');
3863: }
3864: }
1.162 www 3865: &Apache::lonmysql::disconnect_from_db();
1.252 albertel 3866: return OK;
1.162 www 3867: }
1.98 harris41 3868:
1.1 www 3869: __END__
1.105 harris41 3870:
1.121 matthew 3871: =pod
1.105 harris41 3872:
1.121 matthew 3873: =back
1.105 harris41 3874:
3875: =cut
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