Annotation of loncom/interface/lonsearchcat.pm, revision 1.323
1.98 harris41 1: # The LearningOnline Network with CAPA
1.108 harris41 2: # Search Catalog
3: #
1.323 ! bisitz 4: # $Id: lonsearchcat.pm,v 1.322 2010/05/04 15:21:26 droeschl Exp $
1.108 harris41 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
1.98 harris41 14: #
1.108 harris41 15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
1.1 www 27: #
1.121 matthew 28: ###############################################################################
29: ###############################################################################
30:
31: =pod
32:
33: =head1 NAME
34:
1.140 matthew 35: lonsearchcat - LONCAPA Search Interface
1.121 matthew 36:
37: =head1 SYNOPSIS
38:
39: Search interface to LON-CAPAs digital library
40:
41: =head1 DESCRIPTION
42:
43: This module enables searching for a distributed browseable catalog.
1.104 harris41 44:
1.121 matthew 45: This is part of the LearningOnline Network with CAPA project
46: described at http://www.lon-capa.org.
47:
48: lonsearchcat presents the user with an interface to search the LON-CAPA
49: digital library. lonsearchcat also initiates the execution of a search
50: by sending the search parameters to LON-CAPA servers. The progress of
1.205 www 51: search (on a server basis) is displayed to the user in a separate window.
1.121 matthew 52:
53: =head1 Internals
54:
55: =over 4
56:
57: =cut
58:
59: ###############################################################################
1.98 harris41 60: ###############################################################################
1.121 matthew 61:
1.1 www 62: package Apache::lonsearchcat;
63:
64: use strict;
1.167 www 65: use Apache::Constants qw(:common :http);
1.243 albertel 66: use Apache::lonnet;
1.6 harris41 67: use Apache::File();
1.7 harris41 68: use CGI qw(:standard);
1.41 harris41 69: use Text::Query;
1.101 harris41 70: use GDBM_File;
1.112 harris41 71: use Apache::loncommon();
1.144 matthew 72: use Apache::lonmysql();
1.200 www 73: use Apache::lonmeta;
74: use Apache::lonhtmlcommon;
1.186 www 75: use Apache::lonlocal;
1.204 matthew 76: use LONCAPA::lonmetadata();
1.212 matthew 77: use HTML::Entities();
1.228 matthew 78: use Parse::RecDescent;
1.231 raeburn 79: use Apache::lonnavmaps;
1.255 www 80: use Apache::lonindexer();
1.265 www 81: use LONCAPA;
1.1 www 82:
1.121 matthew 83: ######################################################################
84: ######################################################################
1.196 matthew 85: ##
86: ## Global variables
87: ##
1.121 matthew 88: ######################################################################
89: ######################################################################
1.196 matthew 90: my %groupsearch_db; # Database hash used to save values for the
91: # groupsearch RAT interface.
92: my %persistent_db; # gdbm hash which holds data which is supposed to
93: # persist across calls to lonsearchcat.pm
1.121 matthew 94:
1.200 www 95: # The different view modes and associated functions
96:
97: my %Views = ("detailed" => \&detailed_citation_view,
1.255 www 98: "detailedpreview" => \&detailed_citation_preview,
1.200 www 99: "summary" => \&summary_view,
1.255 www 100: "summarypreview" => \&summary_preview,
1.200 www 101: "fielded" => \&fielded_format_view,
102: "xml" => \&xml_sgml_view,
103: "compact" => \&compact_view);
1.101 harris41 104:
1.121 matthew 105: ######################################################################
106: ######################################################################
1.98 harris41 107: sub handler {
108: my $r = shift;
1.197 www 109: # &set_defaults();
1.196 matthew 110: #
111: # set form defaults
1.145 matthew 112: #
1.196 matthew 113: my $hidden_fields;# Hold all the hidden fields used to keep track
114: # of the search system state
115: my $importbutton; # button to take the selected results and go to group
116: # sorting
117: my $diropendb; # The full path to the (temporary) search database file.
118: # This is set and used in &handler() and is also used in
119: # &output_results().
1.157 www 120:
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'})) {
1.181 matthew 147: sleep(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');
1.213 matthew 154: $diropendb= "/home/httpd/perl/tmp/".
1.266 www 155: "$env{'user.domain'}_$env{'user.name'}_sel_res.db";
1.145 matthew 156: #
157: # set the name of the persistent database
1.243 albertel 158: # $env{'form.persistent_db_id'} can only have digits in it.
159: if (! exists($env{'form.persistent_db_id'}) ||
160: ($env{'form.persistent_db_id'} =~ /\D/) ||
161: ($env{'form.launch'} eq '1')) {
162: $env{'form.persistent_db_id'} = time;
1.145 matthew 163: }
1.257 albertel 164:
1.146 matthew 165: my $persistent_db_file = "/home/httpd/perl/tmp/".
1.265 www 166: &escape($domain).
167: '_'.&escape($env{'user.name'}).
1.243 albertel 168: '_'.$env{'form.persistent_db_id'}.'_persistent_search.db';
1.146 matthew 169: ##
1.209 matthew 170: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.277 raeburn 171:
172: my @allowed_searches = ('portfolio');
173: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
174: push(@allowed_searches,'res');
175: }
1.243 albertel 176: if (exists($env{'request.course.id'}) && $env{'request.course.id'} ne '') {
1.277 raeburn 177: push(@allowed_searches,'course');
178: }
179: my $crumb_text = 'Portfolio Search';
180: if (@allowed_searches == 3) {
181: $crumb_text = 'Course, Portfolio and Catalog Search';
182: } elsif (@allowed_searches ==2) {
183: if (grep(/^res$/,@allowed_searches)) {
184: $crumb_text = 'Portfolio and Catalog Search';
185: } elsif (grep(/^course$/,@allowed_searches)) {
186: $crumb_text = 'Portfolio and Course Search';
187: }
188: }
189: &Apache::lonhtmlcommon::add_breadcrumb
190: ({href=>'/adm/searchcat?'.
1.288 albertel 191: &Apache::loncommon::inhibit_menu_check().
1.309 bisitz 192: '&catalogmode='.$env{'form.catalogmode'}.
193: '&launch='.$env{'form.launch'}.
194: '&mode='.$env{'form.mode'},
1.277 raeburn 195: text=>"$crumb_text",
1.227 matthew 196: target=>'_top',
1.209 matthew 197: bug=>'Searching',});
198: #
1.243 albertel 199: if ($env{'form.phase'} !~ m/(basic|adv|course)_search/) {
1.221 matthew 200: if (! &get_persistent_form_data($persistent_db_file)) {
1.243 albertel 201: if ($env{'form.phase'} =~ /(run_search|results)/) {
1.221 matthew 202: &Apache::lonnet::logthis('lonsearchcat:'.
203: 'Unable to recover data from '.
204: $persistent_db_file);
1.256 albertel 205: my $msg =
206: 'We were unable to retrieve data describing your search. '.
207: 'This is a serious error and has been logged. '.
208: 'Please alert your LON-CAPA administrator.';
1.261 albertel 209: &Apache::loncommon::simple_error_page($r,'Search Error',
210: $msg);
211: return OK;
1.221 matthew 212: }
1.150 matthew 213: }
1.221 matthew 214: } else {
215: &clean_up_environment();
1.147 matthew 216: }
1.124 matthew 217: ##
1.143 matthew 218: ## Clear out old values from groupsearch database
1.124 matthew 219: ##
1.146 matthew 220: untie %groupsearch_db if (tied(%groupsearch_db));
1.243 albertel 221: if (($env{'form.cleargroupsort'} eq '1') ||
222: (($env{'form.launch'} eq '1') &&
1.267 www 223: ($env{'form.catalogmode'} eq 'import'))) {
1.148 matthew 224: if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.101 harris41 225: &start_fresh_session();
1.142 matthew 226: untie %groupsearch_db;
1.243 albertel 227: delete($env{'form.cleargroupsort'});
1.122 matthew 228: } else {
1.155 matthew 229: # This is a stupid error to give to the user.
230: # It really tells them nothing.
1.256 albertel 231: my $msg = 'Unable to tie hash to db file.';
1.261 albertel 232: &Apache::loncommon::simple_error_page($r,'Search Error',
233: $msg);
234: return OK;
1.101 harris41 235: }
236: }
1.124 matthew 237: ##
1.150 matthew 238: ## Configure hidden fields
1.124 matthew 239: ##
1.145 matthew 240: $hidden_fields = '<input type="hidden" name="persistent_db_id" value="'.
1.243 albertel 241: $env{'form.persistent_db_id'}.'" />'."\n";
242: if (exists($env{'form.catalogmode'})) {
1.223 matthew 243: $hidden_fields .= &hidden_field('catalogmode');
1.150 matthew 244: }
1.243 albertel 245: if (exists($env{'form.form'})) {
1.223 matthew 246: $hidden_fields .= &hidden_field('form');
1.150 matthew 247: }
1.243 albertel 248: if (exists($env{'form.element'})) {
1.223 matthew 249: $hidden_fields .= &hidden_field('element');
1.150 matthew 250: }
1.243 albertel 251: if (exists($env{'form.titleelement'})) {
1.223 matthew 252: $hidden_fields .= &hidden_field('titleelement');
1.191 albertel 253: }
1.243 albertel 254: if (exists($env{'form.mode'})) {
1.223 matthew 255: $hidden_fields .= &hidden_field('mode');
1.150 matthew 256: }
1.276 raeburn 257: if (exists($env{'form.area'})) {
258: $hidden_fields .= &hidden_field('area');
259: }
1.288 albertel 260: if (exists($env{'form.inhibitmenu'})) {
261: $hidden_fields .= &hidden_field('inhibitmenu');
262: }
1.150 matthew 263: ##
264: ## Configure dynamic components of interface
1.146 matthew 265: ##
1.243 albertel 266: if ($env{'form.catalogmode'} eq 'interactive') {
1.313 bisitz 267: $closebutton="<input type='button' name='close' value='".&mt('Close')."' ";
1.243 albertel 268: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.315 bisitz 269: $closebutton .="onclick='parent.close()'";
1.150 matthew 270: } else {
1.313 bisitz 271: $closebutton .="onclick='self.close()'";
1.150 matthew 272: }
1.315 bisitz 273: $closebutton .=" />\n";
1.267 www 274: } elsif ($env{'form.catalogmode'} eq 'import') {
1.313 bisitz 275: $closebutton="<input type='button' name='close' value='".&mt('Close')."' ";
1.243 albertel 276: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.315 bisitz 277: $closebutton .="onclick='parent.close()'";
1.150 matthew 278: } else {
1.313 bisitz 279: $closebutton .="onclick='self.close()'";
1.150 matthew 280: }
1.315 bisitz 281: $closebutton .= " />";
1.297 bisitz 282: my $txt_import = &mt('IMPORT');
1.98 harris41 283: $importbutton=<<END;
1.297 bisitz 284: <input type='button' name='import' value='$txt_import'
1.315 bisitz 285: onclick='javascript:select_group()' />
1.98 harris41 286: END
1.146 matthew 287: } else {
288: $closebutton = '';
289: $importbutton = '';
1.98 harris41 290: }
1.124 matthew 291: ##
1.146 matthew 292: ## Sanity checks on form elements
1.124 matthew 293: ##
1.243 albertel 294: if (!defined($env{'form.viewselect'})) {
1.248 www 295: $env{'form.viewselect'} ="summary";
1.146 matthew 296: }
1.243 albertel 297: $env{'form.phase'} = 'disp_basic' if (! exists($env{'form.phase'}));
298: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
1.209 matthew 299: #
1.243 albertel 300: $env{'form.searchmode'} = 'basic' if (! exists($env{'form.searchmode'}));
301: if ($env{'form.phase'} eq 'adv_search' ||
302: $env{'form.phase'} eq 'disp_adv') {
303: $env{'form.searchmode'} = 'advanced';
304: } elsif ($env{'form.phase'} eq 'course_search') {
305: $env{'form.searchmode'} = 'course_search';
1.209 matthew 306: }
307: #
1.243 albertel 308: if ($env{'form.searchmode'} eq 'advanced') {
1.277 raeburn 309: my $srchtype = 'Catalog';
310: if ($env{'form.area'} eq 'portfolio') {
311: $srchtype = 'Portfolio';
312: }
1.209 matthew 313: &Apache::lonhtmlcommon::add_breadcrumb
1.288 albertel 314: ({href=>'/adm/searchcat?'.&Apache::loncommon::inhibit_menu_check().
1.309 bisitz 315: '&phase=disp_adv'.
316: '&catalogmode='.$env{'form.catalogmode'}.
317: '&launch='.$env{'form.launch'}.
318: '&mode='.$env{'form.mode'},
1.277 raeburn 319: text=>"Advanced $srchtype Search",
1.209 matthew 320: bug=>'Searching',});
1.243 albertel 321: } elsif ($env{'form.searchmode'} eq 'course search') {
1.209 matthew 322: &Apache::lonhtmlcommon::add_breadcrumb
1.288 albertel 323: ({href=>'/adm/searchcat?'.&Apache::loncommon::inhibit_menu_check().
1.309 bisitz 324: '&phase=disp_adv'.
1.320 raeburn 325: '&catalogmode='.$env{'form.catalogmode'}.
1.309 bisitz 326: '&launch='.$env{'form.launch'}.
327: '&mode='.$env{'form.mode'},
1.209 matthew 328: text=>"Course Search",
329: bug=>'Searching',});
330: }
1.146 matthew 331: ##
332: ## Switch on the phase
333: ##
1.243 albertel 334: if ($env{'form.phase'} eq 'disp_basic') {
1.196 matthew 335: &print_basic_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 336: } elsif ($env{'form.phase'} eq 'disp_adv') {
1.196 matthew 337: &print_advanced_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 338: } elsif ($env{'form.phase'} eq 'results') {
1.276 raeburn 339: &display_results($r,$importbutton,$closebutton,$diropendb,
340: $env{'form.area'});
1.243 albertel 341: } elsif ($env{'form.phase'} =~ /^(sort|run_search)$/) {
1.146 matthew 342: my ($query,$customquery,$customshow,$libraries,$pretty_string) =
343: &get_persistent_data($persistent_db_file,
344: ['query','customquery','customshow',
345: 'libraries','pretty_string']);
1.243 albertel 346: if ($env{'form.phase'} eq 'sort') {
1.151 matthew 347: &print_sort_form($r,$pretty_string);
1.243 albertel 348: } elsif ($env{'form.phase'} eq 'run_search') {
1.151 matthew 349: &run_search($r,$query,$customquery,$customshow,
1.276 raeburn 350: $libraries,$pretty_string,$env{'form.area'});
1.151 matthew 351: }
1.243 albertel 352: } elsif ($env{'form.phase'} eq 'course_search') {
1.167 www 353: &course_search($r);
1.243 albertel 354: } elsif(($env{'form.phase'} eq 'basic_search') ||
355: ($env{'form.phase'} eq 'adv_search')) {
1.228 matthew 356: #
357: # We are running a search, try to parse it
358: my ($query,$customquery,$customshow,$libraries) =
359: (undef,undef,undef,undef);
360: my $pretty_string;
1.243 albertel 361: if ($env{'form.phase'} eq 'basic_search') {
1.228 matthew 362: ($query,$pretty_string,$libraries) =
363: &parse_basic_search($r,$closebutton,$hidden_fields);
364: return OK if (! defined($query));
1.243 albertel 365: &make_persistent({ basicexp => $env{'form.basicexp'}},
1.228 matthew 366: $persistent_db_file);
367: } else { # Advanced search
368: ($query,$customquery,$customshow,$libraries,$pretty_string)
369: = &parse_advanced_search($r,$closebutton,$hidden_fields);
370: return OK if (! defined($query));
371: }
372: &make_persistent({ query => $query,
373: customquery => $customquery,
374: customshow => $customshow,
375: libraries => $libraries,
376: pretty_string => $pretty_string },
377: $persistent_db_file);
378: #
1.146 matthew 379: # Set up table
1.276 raeburn 380: if (! defined(&create_results_table($env{'form.area'}))) {
1.198 www 381: my $errorstring=&Apache::lonmysql::get_error();
1.211 matthew 382: &Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
383: 'needed table. lonmysql error:'.
384: $errorstring);
1.256 albertel 385:
386: my $msg =
1.286 albertel 387: 'Unable to create table in which to save search results. '.
1.256 albertel 388: 'The search has been aborted.';
1.261 albertel 389: &Apache::loncommon::simple_error_page($r,'Search Error',
390: $msg);
391: return OK;
1.146 matthew 392: }
1.243 albertel 393: delete($env{'form.launch'});
1.146 matthew 394: if (! &make_form_data_persistent($r,$persistent_db_file)) {
1.256 albertel 395: my $msg=
1.286 albertel 396: 'Unable to properly save search information. '.
1.256 albertel 397: 'The search has been aborted.';
1.261 albertel 398: &Apache::loncommon::simple_error_page($r,'Search Error',
399: $msg);
400: return OK;
1.256 albertel 401: }
1.145 matthew 402: ##
1.146 matthew 403: ## Print out the frames interface
1.145 matthew 404: ##
1.228 matthew 405: if (defined($query)) {
406: &print_frames_interface($r);
407: }
1.124 matthew 408: }
409: return OK;
410: }
1.98 harris41 411:
1.221 matthew 412: #
413: # The mechanism used to store values away and retrieve them does not
414: # handle the case of missing environment variables being significant.
415: #
416: # This routine sets non existant checkbox form elements to ''.
417: #
418: sub clean_up_environment {
1.243 albertel 419: if ($env{'form.phase'} eq 'basic_search') {
420: if (! exists($env{'form.related'})) {
421: $env{'form.related'} = '';
1.221 matthew 422: }
1.243 albertel 423: if (! exists($env{'form.domains'})) {
424: $env{'form.domains'} = '';
1.221 matthew 425: }
1.243 albertel 426: } elsif ($env{'form.phase'} eq 'adv_search') {
1.221 matthew 427: foreach my $field ('title','keywords','notes',
428: 'abstract','standards','mime') {
1.243 albertel 429: if (! exists($env{'form.'.$field.'_related'})) {
430: $env{'form.'.$field.'_related'} = '';
1.221 matthew 431: }
432: }
1.243 albertel 433: } elsif ($env{'form.phase'} eq 'course_search') {
434: if (! exists($env{'form.crsrelated'})) {
435: $env{'form.crsrelated'} = '';
1.221 matthew 436: }
437: }
438: }
439:
1.223 matthew 440: sub hidden_field {
441: my ($name,$value) = @_;
442: if (! defined($value)) {
1.243 albertel 443: $value = $env{'form.'.$name};
1.223 matthew 444: }
445: return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/;
446: }
447:
1.124 matthew 448: ######################################################################
449: ######################################################################
1.196 matthew 450: ##
451: ## Course Search
452: ##
453: ######################################################################
454: ######################################################################
455: { # Scope the course search to avoid global variables
456: #
457: # Variables For course search
1.236 albertel 458: my %alreadyseen;
1.196 matthew 459: my %hash;
460: my $totalfound;
1.124 matthew 461:
1.235 albertel 462: sub make_symb {
463: my ($id)=@_;
464: my ($mapid,$resid)=split(/\./,$id);
465: my $map=$hash{'map_id_'.$mapid};
466: my $res=$hash{'src_'.$id};
467: my $symb=&Apache::lonnet::encode_symb($map,$resid,$res);
468: return $symb;
469: }
470:
1.167 www 471: sub course_search {
472: my $r=shift;
1.243 albertel 473: my $pretty_search_string = '<b>'.$env{'form.courseexp'}.'</b>';
474: my $search_string = $env{'form.courseexp'};
1.167 www 475: my @New_Words;
1.236 albertel 476: undef(%alreadyseen);
1.243 albertel 477: if ($env{'form.crsrelated'}) {
478: ($search_string,@New_Words) = &related_version($env{'form.courseexp'});
1.167 www 479: if (@New_Words) {
1.200 www 480: $pretty_search_string .= ' '.&mt("with related words").": <b>@New_Words</b>.";
1.167 www 481: } else {
1.200 www 482: $pretty_search_string .= ' '.&mt('with no related words').".";
1.167 www 483: }
484: }
1.243 albertel 485: my $fulltext=$env{'form.crsfulltext'};
486: my $discuss=$env{'form.crsdiscuss'};
1.167 www 487: my @allwords=($search_string,@New_Words);
1.169 www 488: $totalfound=0;
1.311 bisitz 489:
490: &Apache::lonhtmlcommon::add_breadcrumb
491: ({href=>'/adm/searchcat?'.&Apache::loncommon::inhibit_menu_check().
492: '&phase=disp_adv'.
1.320 raeburn 493: '&catalogmode='.$env{'form.catalogmode'}.
1.311 bisitz 494: '&launch='.$env{'form.launch'}.
495: '&mode='.$env{'form.mode'},
496: text=>"Course Search",
497: bug=>'Searching',});
498: $r->print(&Apache::loncommon::start_page('Course Search'));
499: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
500: $env{'form.catalogmode'} ne 'import'));
501:
502: $r->print(
1.256 albertel 503: '<hr /><center><font size="+2" face="arial">'.
504: $pretty_search_string.'</font></center>'.
505: '<hr /><b>'.&mt('Course content').':</b><br />');
1.167 www 506: $r->rflush();
507: # ======================================================= Go through the course
1.169 www 508: my $c=$r->connection;
1.243 albertel 509: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db",
1.196 matthew 510: &GDBM_READER(),0640)) {
1.235 albertel 511: foreach (sort(keys(%hash))) {
1.196 matthew 512: if ($c->aborted()) { last; }
1.235 albertel 513: if (($_=~/^src\_(.+)$/)) {
1.243 albertel 514: if ($hash{'randomout_'.$1} & !$env{'request.role.adv'}) {
1.235 albertel 515: next;
516: }
517: my $symb=&make_symb($1);
518: &checkonthis($r,$1,$hash{$_},0,&Apache::lonnet::gettitle($symb),
519: $fulltext,$symb,@allwords);
1.196 matthew 520: }
521: }
522: untie(%hash);
523: }
1.169 www 524: unless ($totalfound) {
1.312 bisitz 525: $r->print('<p class="LC_info">'.&mt('No matches found in resources.').'</p>');
1.169 www 526: }
1.231 raeburn 527:
528: # Check discussions if requested
529: if ($discuss) {
530: my $totaldiscussions = 0;
531: $r->print('<br /><br /><b>'.&mt('Discussion postings').':</b><br />');
532: my $navmap = Apache::lonnavmaps::navmap->new();
1.303 raeburn 533: if (defined($navmap)) {
534: my @allres=$navmap->retrieveResources();
535: my %discussiontime = &Apache::lonnet::dump('discussiontimes',
536: $env{'course.'.$env{'request.course.id'}.'.domain'},
537: $env{'course.'.$env{'request.course.id'}.'.num'});
538: foreach my $resource (@allres) {
539: my $result = '';
540: my $applies = 0;
541: my $symb = $resource->symb();
542: my $ressymb = $symb;
543: if ($symb =~ m#(___adm/$LONCAPA::domain_re/$LONCAPA::username_re)/(\d+)/bulletinboard$#) {
544: $ressymb = 'bulletin___'.$2.$1.'/'.$2.'/bulletinboard';
545: unless ($ressymb =~ m#bulletin___\d+___adm/wrapper#) {
546: $ressymb=~s#(bulletin___\d+___)#$1adm/wrapper/#;
547: }
1.231 raeburn 548: }
1.303 raeburn 549: if (defined($discussiontime{$ressymb})) {
550: my %contrib = &Apache::lonnet::restore($ressymb,$env{'request.course.id'},
551: $env{'course.'.$env{'request.course.id'}.'.domain'},
552: $env{'course.'.$env{'request.course.id'}.'.num'});
553: if ($contrib{'version'}) {
554: for (my $id=1;$id<=$contrib{'version'};$id++) {
555: unless (($contrib{'hidden'}=~/\.$id\./) || ($contrib{'deleted'}=~/\.$id\./)) {
556: if ($contrib{$id.':subject'}) {
557: $result .= $contrib{$id.':subject'};
558: }
559: if ($contrib{$id.':message'}) {
560: $result .= $contrib{$id.':message'};
561: }
562: if ($contrib{$id,':attachmenturl'}) {
563: if ($contrib{$id,':attachmenturl'} =~ m-/([^/]+)$-) {
564: $result .= $1;
565: }
1.231 raeburn 566: }
1.303 raeburn 567: $applies = &checkwords($result,$applies,@allwords);
1.231 raeburn 568: }
569: }
570: }
571: }
572: # Does this discussion apply?
1.303 raeburn 573: if ($applies) {
574: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($ressymb);
575: my $disctype = &mt('resource');
576: if ($url =~ m#/bulletinboard$#) {
577: if ($url =~m#^adm/wrapper/adm/.*/bulletinboard$#) {
578: $url =~s#^adm/wrapper##;
579: }
1.304 schafran 580: $disctype = &mt('discussion board');
1.303 raeburn 581: } else {
582: $url = '/res/'.$url;
1.231 raeburn 583: }
1.303 raeburn 584: if ($url =~ /\?/) {
1.309 bisitz 585: $url .= '&symb=';
1.303 raeburn 586: } else {
587: $url .= '?symb=';
588: }
589: $url .= &escape($resource->symb());
590: my $title = $resource->compTitle();
591: $r->print('<br /><a href="'.$url.'" target="cat">'.
592: ($title?$title:$url).'</a> - '.
593: $disctype.'<br />');
594: $totaldiscussions++;
1.231 raeburn 595: } else {
1.303 raeburn 596: $r->print(' .');
1.231 raeburn 597: }
598: }
1.303 raeburn 599: unless ($totaldiscussions) {
1.312 bisitz 600: $r->print('<p class="LC_info">'.&mt('No matches found in postings.').'</p>');
1.303 raeburn 601: }
602: } else {
603: $r->print('<div class="LC_error">'.&mt('An error occurred retrieving information about resources in the course.').'<br />'.&mt('It is recommended that you [_1]re-initialize the course[_2] and then try your search again.','<a href="/adm/roles">','</a>').'</div>');
1.231 raeburn 604: }
605: }
606:
1.167 www 607: # =================================================== Done going through course
1.256 albertel 608: $r->print(&Apache::loncommon::end_page());
1.167 www 609: }
610:
611: # =============================== This pulls up a resource and its dependencies
612:
613: sub checkonthis {
1.235 albertel 614: my ($r,$id,$url,$level,$title,$fulltext,$symb,@allwords)=@_;
1.236 albertel 615: $alreadyseen{$id}=1;
616: if (&Apache::loncommon::connection_aborted($r)) { return; }
1.167 www 617: $r->rflush();
1.235 albertel 618:
619: my $result=$title.' ';
1.243 albertel 620: if ($env{'request.role.adv'} || !$hash{'encrypted_'.$id}) {
1.235 albertel 621: $result.=&Apache::lonnet::metadata($url,'title').' '.
622: &Apache::lonnet::metadata($url,'subject').' '.
623: &Apache::lonnet::metadata($url,'abstract').' '.
624: &Apache::lonnet::metadata($url,'keywords');
625: }
626: my ($extension)=($url=~/\.(\w+)$/);
627: if (&Apache::loncommon::fileembstyle($extension) eq 'ssi' &&
628: ($url) && ($fulltext)) {
1.265 www 629: $result.=&Apache::lonnet::ssi_body($url.'?symb='.&escape($symb));
1.167 www 630: }
631: $result=~s/\s+/ /gs;
1.231 raeburn 632: my $applies = 0;
633: $applies = &checkwords($result,$applies,@allwords);
1.167 www 634: # Does this resource apply?
635: if ($applies) {
636: $r->print('<br />');
637: for (my $i=0;$i<=$level*5;$i++) {
638: $r->print(' ');
639: }
1.235 albertel 640: my $href=$url;
1.243 albertel 641: if ($hash{'encrypted_'.$id} && !$env{'request.role.adv'}) {
1.235 albertel 642: $href=&Apache::lonenc::encrypted($href)
643: .'?symb='.&Apache::lonenc::encrypted($symb);
644: } else {
1.265 www 645: $href.='?symb='.&escape($symb);
1.235 albertel 646: }
647: $r->print('<a href="'.$href.'" target="cat">'.($title?$title:$url).
648: '</a><br />');
1.169 www 649: $totalfound++;
650: } elsif ($fulltext) {
651: $r->print(' .');
1.167 www 652: }
1.169 www 653: $r->rflush();
1.167 www 654: # Check also the dependencies of this one
655: my $dependencies=
656: &Apache::lonnet::metadata($url,'dependencies');
1.237 albertel 657: foreach (split(/\,/,$dependencies)) {
658: if (($_=~/^\/res\//) && (!$alreadyseen{$id})) {
1.235 albertel 659: &checkonthis($r,$id,$_,$level+1,'',$fulltext,undef,@allwords);
1.167 www 660: }
661: }
662: }
663:
1.231 raeburn 664: sub checkwords {
665: my ($result,$applies,@allwords) = @_;
666: foreach (@allwords) {
667: if ($_=~/\w/) {
668: if ($result=~/$_/si) {
669: $applies++;
670: }
671: }
672: }
673: return $applies;
674: }
675:
1.196 matthew 676: sub untiehash {
677: if (tied(%hash)) {
678: untie(%hash);
679: }
680: }
681:
682: } # End of course search scoping
683:
1.207 matthew 684:
1.167 www 685: ######################################################################
686: ######################################################################
687:
1.124 matthew 688: =pod
689:
1.146 matthew 690: =item &print_basic_search_form()
1.124 matthew 691:
1.204 matthew 692: Prints the form for the basic search. Sorry the name is so cryptic.
1.124 matthew 693:
694: =cut
695:
696: ######################################################################
697: ######################################################################
1.204 matthew 698: sub print_basic_search_form {
1.196 matthew 699: my ($r,$closebutton,$hidden_fields) = @_;
1.267 www 700: my $result = ($env{'form.catalogmode'} ne 'import');
1.256 albertel 701: my $bread_crumb =
1.263 albertel 702: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Basic',
1.267 www 703: $env{'form.catalogmode'} ne 'import');
1.305 schafran 704: my $scrout = &Apache::loncommon::start_page('Content Library').$bread_crumb;
1.276 raeburn 705: # Search form for resource space
1.243 albertel 706: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
1.276 raeburn 707: $scrout .= &setup_basic_search($r,'res',$hidden_fields,$closebutton);
708: $scrout .= '<hr /><br />';
1.180 matthew 709: }
1.276 raeburn 710: # Search form for accessible portfolio files
711: $scrout.= &setup_basic_search($r,'portfolio',$hidden_fields,$closebutton);
1.243 albertel 712: if ($env{'request.course.id'}) {
1.213 matthew 713: my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
1.187 www 714: 'header' => 'Course Search',
715: 'note' => 'Enter terms or phrases, then press "Search" below',
1.200 www 716: 'use' => 'use related words',
1.231 raeburn 717: 'full' =>'fulltext search (time consuming)',
1.304 schafran 718: 'disc' => 'search discussion postings (resources and discussion boards)',
1.187 www 719: );
1.180 matthew 720: $scrout.=(<<ENDCOURSESEARCH);
1.213 matthew 721: <form name="loncapa_search" method="post" action="/adm/searchcat">
722: <center>
1.180 matthew 723: <hr />
1.187 www 724: <h1>$lt{'header'}</h1>
1.167 www 725: <input type="hidden" name="phase" value="course_search" />
726: $hidden_fields
727: <p>
1.187 www 728: $lt{'note'}.
1.167 www 729: </p>
730: <table>
731: <tr><td>
732: ENDCOURSESEARCH
1.180 matthew 733: $scrout.=' '.
1.200 www 734: &Apache::lonhtmlcommon::textbox('courseexp',
1.243 albertel 735: $env{'form.courseexp'},40);
1.180 matthew 736: my $crscheckbox =
1.200 www 737: &Apache::lonhtmlcommon::checkbox('crsfulltext',
1.243 albertel 738: $env{'form.crsfulltext'});
1.180 matthew 739: my $relcheckbox =
1.200 www 740: &Apache::lonhtmlcommon::checkbox('crsrelated',
1.243 albertel 741: $env{'form.crsrelated'});
1.231 raeburn 742: my $discheckbox =
743: &Apache::lonhtmlcommon::checkbox('crsdiscuss',
1.243 albertel 744: $env{'form.crsrelated'});
1.180 matthew 745: $scrout.=(<<ENDENDCOURSE);
1.167 www 746: </td></tr>
1.234 matthew 747: <tr><td><label>$relcheckbox $lt{'use'}</label></td><td></td></tr>
748: <tr><td><label>$crscheckbox $lt{'full'}</label></td><td></td></tr>
749: <tr><td><label>$discheckbox $lt{'disc'}</label></td><td></td></tr>
1.312 bisitz 750: </table>
751: <p>
752: <input type="submit" name="coursesubmit" value='$lt{'srch'}' />
1.167 www 753: </p>
1.213 matthew 754: </center>
755: </form>
1.167 www 756: ENDENDCOURSE
1.180 matthew 757: }
1.256 albertel 758: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 759: $r->print($scrout);
760: return;
1.124 matthew 761: }
1.276 raeburn 762:
763: sub setup_basic_search {
764: my ($r,$area,$hidden_fields,$closebutton) = @_;
765: # Define interface components
766: my %lt = &Apache::lonlocal::texthash (
767: res => 'LON-CAPA Catalog Search',
768: portfolio => 'Portfolio Search',
769: );
770: my ($userelatedwords,$onlysearchdomain,$inclext,$adv_search_link,$scrout);
1.318 bisitz 771:
772: $userelatedwords = '<label>'
773: .&Apache::lonhtmlcommon::checkbox(
774: 'related',
775: $env{'form.related'},
776: 'related')
777: .' '
778: .&mt('use related words')
779: .'</label>';
780:
781: $onlysearchdomain = '<label>'
782: .&Apache::lonhtmlcommon::checkbox(
783: 'domains',
784: $env{'form.domains'},
785: $r->dir_config('lonDefDomain'))
786: .' '
787: .&mt('only search domain [_1]'
788: ,'<b>'.$r->dir_config('lonDefDomain').'</b>')
789: .'</label>';
790:
1.276 raeburn 791: $adv_search_link = '<a href="/adm/searchcat?'.
1.288 albertel 792: &Apache::loncommon::inhibit_menu_check().
1.309 bisitz 793: '&phase=disp_adv'.
794: '&catalogmode='.$env{'form.catalogmode'}.
795: '&launch='.$env{'form.launch'}.
796: '&mode='.$env{'form.mode'}.
797: '&area='.$area.
798: '&form='.$env{'form.form'}.
799: '&titleelement='.$env{'form.titleelement'}.
800: '&element='.$env{'form.element'}.
1.276 raeburn 801: '">'.&mt('Advanced Search').'</a>';
802: #
803: $scrout.='<form name="loncapa_search" method="post" '.
804: 'action="/adm/searchcat">'.
805: '<input type="hidden" name="phase" value="basic_search" />'.
806: $hidden_fields;
807: if (!exists($env{'form.area'})) {
808: $scrout .= '<input type="hidden" name="area" value="'.$area.'" />';
809: }
810: #
1.313 bisitz 811: $scrout .= '<div align="center">'.$/;
1.276 raeburn 812: # if ($env{'request.course.id'}) {
813: $scrout .= '<h1>'.$lt{$area}.'</h1>';
814: # } else {
815: # No need to tell them they are searching
816: # $scrout.= ('<br />'x2);
817: # }
818: $scrout.='<table>'.
819: '<tr><td align="center" valign="top">'.
820: &Apache::lonhtmlcommon::textbox('basicexp',
821: $env{'form.basicexp'},50).
822: '<br />'.
1.313 bisitz 823: '<span class="LC_fontsize_small">'.&searchhelp().'</span>'.'</td>'.
824: '<td>'.
1.301 bisitz 825: '<span class="LC_nobreak">'.(' 'x3).$adv_search_link.'</span>'.'<br />'.
826: '<span class="LC_nobreak">'.(' 'x1).$userelatedwords.'</span>'.'<br />'.
827: '<span class="LC_nobreak">'.(' 'x1).$onlysearchdomain.'</span>'.'<br />'.
828: '<span class="LC_nobreak">'.(' 'x1).$inclext.'</span>'.'<br />'.
1.313 bisitz 829: '</td>'.
830: '</tr>'.
831: '</table>'.$/;
832: #
833: $scrout .= '<p>'
834: .&viewoptions()
835: .'</p>'
836: .'<p>'
837: .'<input type="submit" name="basicsubmit" '
838: .'value="'.&mt('Search').'" />'
839: .' '
840: .$closebutton
841: .'</p>';
1.276 raeburn 842: #
1.313 bisitz 843: $scrout .= '</div>'.'</form>';
1.276 raeburn 844: return $scrout;
845: }
846:
1.124 matthew 847: ######################################################################
848: ######################################################################
849:
850: =pod
851:
852: =item &advanced_search_form()
853:
1.204 matthew 854: Prints the advanced search form.
1.124 matthew 855:
856: =cut
857:
858: ######################################################################
859: ######################################################################
1.146 matthew 860: sub print_advanced_search_form{
1.196 matthew 861: my ($r,$closebutton,$hidden_fields) = @_;
1.256 albertel 862: my $bread_crumb =
1.263 albertel 863: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Advanced',
1.267 www 864: $env{'form.catalogmode'} ne 'import');
1.200 www 865: my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
866: 'reset' => 'Reset',
867: 'help' => 'Help');
1.217 matthew 868: my $advanced_buttons=<<"END";
1.314 bisitz 869: <p>
1.200 www 870: <input type="submit" name="advancedsubmit" value='$lt{"srch"}' />
871: <input type="reset" name="reset" value='$lt{"reset"}' />
1.129 matthew 872: $closebutton
1.314 bisitz 873: </p>
1.129 matthew 874: END
1.277 raeburn 875: my $srchtype = 'Catalog';
1.279 raeburn 876: my $jscript;
1.277 raeburn 877: if ($env{'form.area'} eq 'portfolio') {
878: $srchtype = 'Portfolio';
1.279 raeburn 879: $jscript = '<script type="text/javascript">
1.313 bisitz 880: // <![CDATA[
1.279 raeburn 881: function additional_metadata() {
882: if (document.advsearch.newfield.checked) {
883: document.advsearch.phase.value = "disp_adv";
884: document.advsearch.numaddedfields.value = parseInt(document.advsearch.numaddedfields.value) +1;
885: document.advsearch.submit();
1.277 raeburn 886: }
1.279 raeburn 887: }
1.313 bisitz 888: // ]]>
1.279 raeburn 889: </script>';
890: }
891: my $scrout= &Apache::loncommon::start_page("Advanced $srchtype Search",
892: $jscript);
1.314 bisitz 893: $scrout .= $bread_crumb;
894:
895: $scrout .= '<form method="post" action="/adm/searchcat" name="advsearch">'
896: .$hidden_fields
897: .'<input type="hidden" name="phase" value="adv_search" />';
898:
899: $scrout .= '<fieldset>'."\n"
900: .'<legend>'.&mt('Display Options').'</legend>'."\n"
901: .&viewoptions()
902: .'</fieldset>';
903:
904: $scrout .= $advanced_buttons;
905:
906: $scrout .= &Apache::lonhtmlcommon::start_pick_box();
907:
1.200 www 908: my %fields=&Apache::lonmeta::fieldnames();
1.314 bisitz 909:
910: # Standard Metadata
911: $scrout .= &Apache::lonhtmlcommon::row_headline()
912: .'<h3>'.&mt("Standard $srchtype Metadata").'</h3>'
913: .&searchhelp()
914: .&Apache::lonhtmlcommon::row_closure();
1.208 matthew 915: my %related_word_search =
1.217 matthew 916: ('title' => 1,
917: 'author' => 0,
918: 'owner' => 0,
919: 'authorspace' => 0,
920: 'modifyinguser'=> 0,
921: 'keywords' => 1,
922: 'notes' => 1,
923: 'abstract' => 1,
924: 'standards'=> 1,
925: 'mime' => 1,
1.314 bisitz 926: 'subject' => 1,
1.208 matthew 927: );
1.209 matthew 928: #
1.246 albertel 929: foreach my $field ('title','author','subject','owner','authorspace',
1.314 bisitz 930: 'modifyinguser','keywords','notes','abstract',
931: 'standards','mime') {
932: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield($fields{$field}))
933: .&Apache::lonmeta::prettyinput($field,
1.243 albertel 934: $env{'form.'.$field},
1.208 matthew 935: $field,
936: 'advsearch',
1.314 bisitz 937: $related_word_search{$field},
938: '',
1.243 albertel 939: $env{'form.'.$field.'_related'},
1.208 matthew 940: 50);
941: if ($related_word_search{$field}) {
1.289 bisitz 942: $scrout .= &mt('related words');
1.208 matthew 943: } else {
1.314 bisitz 944: $scrout .= '';
1.208 matthew 945: }
1.314 bisitz 946: $scrout .= &Apache::lonhtmlcommon::row_closure();
1.208 matthew 947: }
948: foreach my $field ('lowestgradelevel','highestgradelevel') {
1.314 bisitz 949: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield($fields{$field}))
950: .&Apache::lonmeta::prettyinput($field,
1.243 albertel 951: $env{'form.'.$field},
1.208 matthew 952: $field,
953: 'advsearch',
1.314 bisitz 954: 0)
955: .&Apache::lonhtmlcommon::row_closure();
1.200 www 956: }
1.314 bisitz 957:
958: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('MIME Type Category')))
959: .&Apache::loncommon::filecategoryselect('category',
960: $env{'form.category'})
961: .&Apache::lonhtmlcommon::row_closure();
962:
963: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Domains')))
964: .&Apache::loncommon::domain_select('domains',
965: $env{'form.domains'},1)
966: .&Apache::lonhtmlcommon::row_closure();
967:
1.217 matthew 968: # Misc metadata
1.276 raeburn 969: if ($env{'form.area'} ne 'portfolio') {
1.314 bisitz 970: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Copyright/Distribution')))
971: .&Apache::lonmeta::selectbox('copyright',
1.276 raeburn 972: $env{'form.copyright'},
973: \&Apache::loncommon::copyrightdescription,
974: ( undef,
975: &Apache::loncommon::copyrightids)
1.314 bisitz 976: )
977: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 978: }
1.314 bisitz 979:
980: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Language')))
981: .&Apache::lonmeta::selectbox('language',
1.243 albertel 982: $env{'form.language'},
1.217 matthew 983: \&Apache::loncommon::languagedescription,
984: ('any',&Apache::loncommon::languageids)
1.314 bisitz 985: )
986: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 987:
1.314 bisitz 988: # Portfolio Metadata
1.276 raeburn 989: if ($env{'form.area'} eq 'portfolio') {
990: # Added fields
1.279 raeburn 991: my $curnumadd = $env{'form.numaddedfields'};
992: if ($curnumadd eq '') {
993: $curnumadd = 1;
994: }
1.314 bisitz 995: $scrout .= &Apache::lonhtmlcommon::row_headline()
996: .'<h3>'.&mt('Custom Metadata fields').'</h3>'
997: .&Apache::lonhtmlcommon::row_closure()
998: .&Apache::lonhtmlcommon::row_title('')
999: .&mt('Field Name').' | '.&mt('Field Value(s)')
1000: .&Apache::lonhtmlcommon::row_closure();
1.279 raeburn 1001:
1002: for (my $j=0; $j<$curnumadd; $j++) {
1.276 raeburn 1003: my $num = $j+1;
1.314 bisitz 1004: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Custom metadata [_1]',$num))
1005: .'<input type="text"'
1006: .' name="addedfield_'.$j.'" size="10"'
1007: .' value="'.$env{'form.addedfield_'.$j}.'" />'
1008: .' '
1009: .'<input type="text" '
1010: .'name="addedvalues_'.$j.'" size="15"'
1011: .' value="'.$env{'form.addedvalues_'.$j}.'" />'
1012: .&Apache::lonhtmlcommon::row_closure();
1013: }
1014: $scrout .= &Apache::lonhtmlcommon::row_title('')
1015: .'<label>'
1016: .'<input type="checkbox" name="newfield"'
1017: .' value="1" onclick="javascript:additional_metadata()" />'
1018: .&mt('Another custom field/value pair?').'</label>'
1019: .'<input type="hidden" name="numaddedfields"'
1020: .' value="'.$curnumadd.'" />'
1021: .&Apache::lonhtmlcommon::row_closure();
1022: } else {
1.276 raeburn 1023: #
1024: # Dynamic metadata
1.314 bisitz 1025: $scrout .= &Apache::lonhtmlcommon::row_headline()
1026: .'<h3>'.&mt('Problem Statistics').'</h3>'
1027: .&Apache::lonhtmlcommon::row_closure();
1028: $scrout .= &Apache::lonhtmlcommon::row_title('')
1029: .&mt('Minimum').' | '.&mt('Maximum')
1030: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 1031: foreach my $statistic
1032: ({ name=>'count',
1033: description=>'Network-wide number of accesses (hits)',},
1034: { name=>'stdno',
1035: description=>
1.285 www 1036: 'Statistics calculated for number of students',},
1.276 raeburn 1037: { name => 'avetries',
1038: description=>'Average number of tries till solved',},
1039: { name => 'difficulty',
1040: description=>'Degree of difficulty',},
1041: { name => 'disc',
1042: description=>'Degree of discrimination'}) {
1.314 bisitz 1043: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt($statistic->{'description'})))
1044: .'<input type="text" name="'.$statistic->{'name'}
1045: .'_min" value="" size="6" />'
1046: .' '
1047: .'<input type="text" name="'.$statistic->{'name'}
1048: .'_max" value="" size="6" />'
1049: .&Apache::lonhtmlcommon::row_closure();
1050: }
1051:
1052: $scrout .= &Apache::lonhtmlcommon::row_headline()
1053: .'<h3>'.&mt('Evaluation Data').'</h3>'
1054: .&Apache::lonhtmlcommon::row_closure();
1055: $scrout .= &Apache::lonhtmlcommon::row_title('')
1056: .&mt('Minimum').' | '.&mt('Maximum')
1057: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 1058: foreach my $evaluation
1059: ( { name => 'clear',
1060: description => 'Material presented in clear way'},
1061: { name =>'depth',
1062: description => 'Material covered with sufficient depth'},
1063: { name => 'helpful',
1064: description => 'Material is helpful'},
1065: { name => 'correct',
1066: description => 'Material appears to be correct'},
1067: { name => 'technical',
1068: description => 'Resource is technically correct'}){
1.314 bisitz 1069: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt($evaluation->{'description'})))
1070: .'<input type="text" name="'
1071: .$evaluation->{'name'}.'_min" value="" size="6" />'
1072: .' '
1073: .'<input type="text" name="'
1074: .$evaluation->{'name'}.'_max" value="" size="6" />'
1075: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 1076: }
1.217 matthew 1077: }
1.216 matthew 1078: #
1079: # Creation/Modification date limits
1.314 bisitz 1080: $scrout .= &Apache::lonhtmlcommon::row_headline()
1081: .'<h3>'.&mt('Creation and Modification dates').'</h3>'
1082: .&Apache::lonhtmlcommon::row_closure();
1083: $scrout .= &Apache::lonhtmlcommon::row_title('')
1084: .&mt('Month[_1]Day[_2]Year',' 'x14,' 'x6)
1085: .&Apache::lonhtmlcommon::row_closure();
1086:
1.216 matthew 1087: my $cafter =
1088: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
1089: 'creationdate1', # fieldname
1090: 0, # current value
1091: '', # special
1092: 1, # includeempty
1093: '', # state
1094: 1, # no_hh_mm_ss
1095: );
1096: my $cbefore =
1097: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
1098: 'creationdate2', # fieldname
1099: 0, # current value
1100: '', # special
1101: 1, # includeempty
1102: '', # state
1103: 1, # no_hh_mm_ss
1104: );
1.314 bisitz 1105: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Created between'))
1106: .$cafter
1107: .&Apache::lonhtmlcommon::row_closure(1)
1108: .&Apache::lonhtmlcommon::row_title(&mt('and'))
1109: .$cbefore
1110: .&Apache::lonhtmlcommon::row_closure();
1111:
1.216 matthew 1112: my $lafter =
1113: &Apache::lonhtmlcommon::date_setter('advsearch',
1114: 'revisiondate1',
1115: 0, # current value
1116: '', # special
1117: 1, # includeempty
1118: '', # state
1119: 1, # no_hh_mm_ss
1120: );
1121: my $lbefore =
1122: &Apache::lonhtmlcommon::date_setter('advsearch',
1123: 'revisiondate2',
1124: 0, # current value
1125: '', # special
1126: 1, # includeempty
1127: '', # state
1128: 1, # no_hh_mm_ss
1129: );
1.314 bisitz 1130: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Last modified between'))
1131: .$lafter
1132: .&Apache::lonhtmlcommon::row_closure(1)
1133: .&Apache::lonhtmlcommon::row_title(&mt('and'))
1134: .$lbefore
1135: .&Apache::lonhtmlcommon::row_closure(1); # Last row of total pick_box
1136:
1137: $scrout .= &Apache::lonhtmlcommon::end_pick_box();
1138:
1139: $scrout .= $advanced_buttons
1140: .'</form>';
1141:
1.256 albertel 1142: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 1143: $r->print($scrout);
1144: return;
1.124 matthew 1145: }
1.204 matthew 1146:
1.200 www 1147: ######################################################################
1148: ######################################################################
1149:
1150: =pod
1151:
1.204 matthew 1152: =item &titlefield()
1.200 www 1153:
1154: Inputs: title text
1155:
1156: Outputs: titletext with font wrapper
1157:
1158: =cut
1159:
1160: ######################################################################
1161: ######################################################################
1162: sub titlefield {
1163: my $title=shift;
1.208 matthew 1164: return $title;
1.200 www 1165: }
1.204 matthew 1166:
1.200 www 1167: ######################################################################
1168: ######################################################################
1169:
1170: =pod
1171:
1.204 matthew 1172: =item viewoptiontext()
1.200 www 1173:
1174: Inputs: codename for view option
1175:
1176: Outputs: displayed text
1177:
1178: =cut
1179:
1180: ######################################################################
1181: ######################################################################
1182: sub viewoptiontext {
1183: my $code=shift;
1.204 matthew 1184: my %desc=&Apache::lonlocal::texthash
1185: ('detailed' => "Detailed Citation View",
1186: 'xml' => 'XML/SGML',
1187: 'compact' => 'Compact View',
1188: 'fielded' => 'Fielded Format',
1.255 www 1189: 'summary' => 'Summary View',
1190: 'summarypreview' => 'Summary Preview',
1191: 'detailedpreview' => 'Detailed Citation Preview');
1.200 www 1192: return $desc{$code};
1193: }
1.204 matthew 1194:
1195: ######################################################################
1.200 www 1196: ######################################################################
1197:
1198: =pod
1199:
1.204 matthew 1200: =item viewoptions()
1.200 www 1201:
1202: Inputs: none
1203:
1204: Outputs: text for box with view options
1205:
1206: =cut
1207:
1208: ######################################################################
1209: ######################################################################
1210: sub viewoptions {
1.313 bisitz 1211: my $scrout;
1.243 albertel 1212: if (! defined($env{'form.viewselect'})) {
1213: $env{'form.viewselect'}='detailed';
1.208 matthew 1214: }
1.313 bisitz 1215: $scrout .= '<span class="LC_nobreak">'
1216: .&mt('Type:').' '
1217: .&Apache::lonmeta::selectbox('viewselect',
1218: $env{'form.viewselect'},
1219: \&viewoptiontext,
1220: sort(keys(%Views)))
1221: .'</span>';
1.214 matthew 1222: my $countselect = &Apache::lonmeta::selectbox('show',
1.243 albertel 1223: $env{'form.show'},
1.214 matthew 1224: undef,
1225: (10,20,50,100,1000,10000));
1.313 bisitz 1226: $scrout .= ' <span class="LC_nobreak">'
1227: .&mt('Records per Page:').' '.$countselect
1.301 bisitz 1228: .'</span>'.$/;
1.200 www 1229: return $scrout;
1.201 www 1230: }
1231:
1232: ######################################################################
1.204 matthew 1233: ######################################################################
1.201 www 1234:
1235: =pod
1236:
1.204 matthew 1237: =item searchhelp()
1.201 www 1238:
1239: Inputs: none
1240:
1241: Outputs: return little blurb on how to enter searches
1242:
1243: =cut
1244:
1245: ######################################################################
1246: ######################################################################
1247: sub searchhelp {
1.228 matthew 1248: return &mt('Enter words and quoted phrases');
1.200 www 1249: }
1.8 harris41 1250:
1.121 matthew 1251: ######################################################################
1252: ######################################################################
1253:
1254: =pod
1255:
1.204 matthew 1256: =item &get_persistent_form_data()
1.145 matthew 1257:
1.146 matthew 1258: Inputs: filename of database
1259:
1260: Outputs: returns undef on database errors.
1261:
1262: This function is the reverse of &make_persistent() for form data.
1.145 matthew 1263: Retrieve persistent data from %persistent_db. Retrieved items will have their
1.243 albertel 1264: values unescaped. If a form value already exists in $env, it will not be
1.146 matthew 1265: overwritten. Form values that are array references may have values appended
1266: to them.
1.145 matthew 1267:
1268: =cut
1269:
1270: ######################################################################
1271: ######################################################################
1.146 matthew 1272: sub get_persistent_form_data {
1273: my $filename = shift;
1.147 matthew 1274: return 0 if (! -e $filename);
1.146 matthew 1275: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 1276: &GDBM_READER(),0640));
1.146 matthew 1277: #
1278: # These make sure we do not get array references printed out as 'values'.
1.161 matthew 1279: my %arrays_allowed = ('form.domains'=>1);
1.146 matthew 1280: #
1281: # Loop through the keys, looking for 'form.'
1282: foreach my $name (keys(%persistent_db)) {
1283: next if ($name !~ /^form./);
1.182 matthew 1284: # Kludgification begins!
1285: if ($name eq 'form.domains' &&
1.243 albertel 1286: $env{'form.searchmode'} eq 'basic' &&
1287: $env{'form.phase'} ne 'disp_basic') {
1.182 matthew 1288: next;
1289: }
1290: # End kludge (hopefully)
1.243 albertel 1291: next if (exists($env{$name}));
1.146 matthew 1292: my @values = map {
1.265 www 1293: &unescape($_);
1.146 matthew 1294: } split(',',$persistent_db{$name});
1295: next if (@values <1);
1.152 matthew 1296: if ($arrays_allowed{$name}) {
1.243 albertel 1297: $env{$name} = [@values];
1.146 matthew 1298: } else {
1.243 albertel 1299: $env{$name} = $values[0] if ($values[0]);
1.146 matthew 1300: }
1301: }
1302: untie (%persistent_db);
1303: return 1;
1304: }
1.181 matthew 1305:
1.146 matthew 1306: ######################################################################
1307: ######################################################################
1308:
1309: =pod
1310:
1.204 matthew 1311: =item &get_persistent_data()
1.146 matthew 1312:
1313: Inputs: filename of database, ref to array of values to recover.
1314:
1315: Outputs: array of values. Returns undef on error.
1316:
1317: This function is the reverse of &make_persistent();
1318: Retrieve persistent data from %persistent_db. Retrieved items will have their
1319: values unescaped. If the item contains commas (before unescaping), the
1320: returned value will be an array pointer.
1321:
1322: =cut
1323:
1324: ######################################################################
1325: ######################################################################
1326: sub get_persistent_data {
1327: my $filename = shift;
1328: my @Vars = @{shift()};
1329: my @Values; # Return array
1330: return undef if (! -e $filename);
1331: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 1332: &GDBM_READER(),0640));
1.146 matthew 1333: foreach my $name (@Vars) {
1334: if (! exists($persistent_db{$name})) {
1335: push @Values, undef;
1336: next;
1337: }
1338: my @values = map {
1.265 www 1339: &unescape($_);
1.146 matthew 1340: } split(',',$persistent_db{$name});
1.152 matthew 1341: if (@values <= 1) {
1.146 matthew 1342: push @Values,$values[0];
1.145 matthew 1343: } else {
1.146 matthew 1344: push @Values,\@values;
1.145 matthew 1345: }
1346: }
1.146 matthew 1347: untie (%persistent_db);
1348: return @Values;
1.145 matthew 1349: }
1350:
1351: ######################################################################
1352: ######################################################################
1353:
1354: =pod
1355:
1.121 matthew 1356: =item &make_persistent()
1357:
1.146 matthew 1358: Inputs: Hash of values to save, filename of persistent database.
1359:
1360: Store variables away to the %persistent_db.
1.145 matthew 1361: Values will be escaped. Values that are array pointers will have their
1.205 www 1362: elements escaped and concatenated in a comma separated string.
1.122 matthew 1363:
1.121 matthew 1364: =cut
1365:
1366: ######################################################################
1367: ######################################################################
1.98 harris41 1368: sub make_persistent {
1.133 matthew 1369: my %save = %{shift()};
1.146 matthew 1370: my $filename = shift;
1371: return undef if (! tie(%persistent_db,'GDBM_File',
1.148 matthew 1372: $filename,&GDBM_WRCREAT(),0640));
1.146 matthew 1373: foreach my $name (keys(%save)) {
1.145 matthew 1374: my @values = (ref($save{$name}) ? @{$save{$name}} : ($save{$name}));
1375: # We handle array references, but not recursively.
1.265 www 1376: my $store = join(',', map { &escape($_); } @values );
1.145 matthew 1377: $persistent_db{$name} = $store;
1.109 harris41 1378: }
1.146 matthew 1379: untie(%persistent_db);
1380: return 1;
1381: }
1382:
1383: ######################################################################
1384: ######################################################################
1385:
1386: =pod
1387:
1388: =item &make_form_data_persistent()
1389:
1390: Inputs: filename of persistent database.
1391:
1392: Store most form variables away to the %persistent_db.
1393: Values will be escaped. Values that are array pointers will have their
1.205 www 1394: elements escaped and concatenated in a comma separated string.
1.146 matthew 1395:
1396: =cut
1397:
1398: ######################################################################
1399: ######################################################################
1400: sub make_form_data_persistent {
1401: my $r = shift;
1402: my $filename = shift;
1403: my %save;
1.243 albertel 1404: foreach (keys(%env)) {
1.150 matthew 1405: next if (!/^form/ || /submit/);
1.243 albertel 1406: $save{$_} = $env{$_};
1.146 matthew 1407: }
1.152 matthew 1408: return &make_persistent(\%save,$filename);
1.98 harris41 1409: }
1410:
1.122 matthew 1411: ######################################################################
1412: ######################################################################
1413:
1414: =pod
1415:
1.134 matthew 1416: =item &parse_advanced_search()
1417:
1418: Parse advanced search form and return the following:
1419:
1420: =over 4
1421:
1422: =item $query Scalar containing an SQL query.
1.126 matthew 1423:
1.134 matthew 1424: =item $customquery Scalar containing a custom query.
1425:
1426: =item $customshow Scalar containing commands to show custom metadata.
1427:
1428: =item $libraries_to_query Reference to array of domains to search.
1429:
1430: =back
1.122 matthew 1431:
1432: =cut
1433:
1434: ######################################################################
1435: ######################################################################
1.134 matthew 1436: sub parse_advanced_search {
1.196 matthew 1437: my ($r,$closebutton,$hidden_fields)=@_;
1.216 matthew 1438: my @BasicFields = ('title','author','subject','keywords','url','version',
1.227 matthew 1439: 'notes','abstract','extension','owner','authorspace',
1.216 matthew 1440: # 'custommetadata','customshow',
1441: 'modifyinguser','standards','mime');
1.222 matthew 1442: my @StatsFields = &statfields();
1443: my @EvalFields = &evalfields();
1.32 harris41 1444: my $fillflag=0;
1.230 matthew 1445: my $pretty_search_string = "";
1.64 harris41 1446: # Clean up fields for safety
1.216 matthew 1447: for my $field (@BasicFields,
1448: 'creationdatestart_month','creationdatestart_day',
1.64 harris41 1449: 'creationdatestart_year','creationdateend_month',
1450: 'creationdateend_day','creationdateend_year',
1451: 'lastrevisiondatestart_month','lastrevisiondatestart_day',
1452: 'lastrevisiondatestart_year','lastrevisiondateend_month',
1.216 matthew 1453: 'lastrevisiondateend_day','lastrevisiondateend_year') {
1.300 raeburn 1454: $env{'form.'.$field}=~s/[^\w\/\s\(\)\=\-\"\'.\*]//g;
1.64 harris41 1455: }
1.117 matthew 1456: foreach ('mode','form','element') {
1457: # is this required? Hmmm.
1.243 albertel 1458: next if (! exists($env{'form.'.$_}));
1.265 www 1459: $env{'form.'.$_}=&unescape($env{'form.'.$_});
1.243 albertel 1460: $env{'form.'.$_}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1461: }
1.131 matthew 1462: # Preprocess the category form element.
1.243 albertel 1463: $env{'form.category'} = 'any' if (! defined($env{'form.category'}) ||
1464: ref($env{'form.category'}));
1.161 matthew 1465: #
1.90 harris41 1466: # Check to see if enough information was filled in
1.222 matthew 1467: foreach my $field (@BasicFields) {
1.243 albertel 1468: if (&filled($env{'form.'.$field})) {
1.32 harris41 1469: $fillflag++;
1470: }
1471: }
1.222 matthew 1472: foreach my $field (@StatsFields,@EvalFields) {
1.243 albertel 1473: if (&filled($env{'form.'.$field.'_max'})) {
1.222 matthew 1474: $fillflag++;
1475: }
1.243 albertel 1476: if (&filled($env{'form.'.$field.'_min'})) {
1.222 matthew 1477: $fillflag++;
1478: }
1479: }
1480:
1.216 matthew 1481: for my $field ('lowestgradelevel','highestgradelevel') {
1.243 albertel 1482: if ( $env{'form.'.$field} =~ /^\d+$/ &&
1483: $env{'form.'.$field} > 0) {
1.216 matthew 1484: $fillflag++;
1485: }
1486: }
1.279 raeburn 1487: if ($env{'form.area'} eq 'portfolio') {
1488: # Added metadata fields
1489: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1490: my $field = $env{'form.addedfield_'.$i};
1491: $field =~ s/^\s*(\S*)\s*$/$1/;
1492: $field =~ s/\W/_/g;
1493: if ($field ne '') {
1494: $fillflag++;
1495: }
1496: }
1497: }
1.212 matthew 1498: if (! $fillflag) {
1.204 matthew 1499: &output_blank_field_error($r,$closebutton,
1500: 'phase=disp_adv',$hidden_fields);
1.134 matthew 1501: return ;
1.32 harris41 1502: }
1.90 harris41 1503: # Turn the form input into a SQL-based query
1.39 harris41 1504: my $query='';
1.45 harris41 1505: my @queries;
1.143 matthew 1506: my $font = '<font color="#800000" face="helvetica">';
1.90 harris41 1507: # Evaluate logical expression AND/OR/NOT phrase fields.
1.216 matthew 1508: foreach my $field (@BasicFields) {
1.243 albertel 1509: next if (!defined($env{'form.'.$field}) || $env{'form.'.$field} eq '');
1.228 matthew 1510: my ($error,$SQLQuery) =
1.243 albertel 1511: &process_phrase_input($env{'form.'.$field},
1512: $env{'form.'.$field.'_related'},$field);
1.228 matthew 1513: if (defined($error)) {
1514: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_adv',
1515: $hidden_fields,$field);
1516: return;
1517: } else {
1518: $pretty_search_string .=
1.243 albertel 1519: $font.$field.'</font>: '.$env{'form.'.$field};
1520: if ($env{'form.'.$field.'_related'}) {
1.228 matthew 1521: my @Words =
1522: &Apache::loncommon::get_related_words
1.243 albertel 1523: ($env{'form.'.$field});
1.228 matthew 1524: if (@Words) {
1525: $pretty_search_string.= ' with related words: '.
1526: join(', ',@Words[0..4]);
1.143 matthew 1527: } else {
1.228 matthew 1528: $pretty_search_string.= ' with related words.';
1.143 matthew 1529: }
1.142 matthew 1530: }
1.228 matthew 1531: $pretty_search_string .= '<br />';
1532: push (@queries,$SQLQuery);
1.131 matthew 1533: }
1.44 harris41 1534: }
1.161 matthew 1535: #
1536: # Make the 'mime' from 'form.category' and 'form.extension'
1537: #
1538: my $searchphrase;
1.243 albertel 1539: if (exists($env{'form.category'}) &&
1540: $env{'form.category'} !~ /^\s*$/ &&
1541: $env{'form.category'} ne 'any') {
1.161 matthew 1542: my @extensions = &Apache::loncommon::filecategorytypes
1.243 albertel 1543: ($env{'form.category'});
1.161 matthew 1544: if (scalar(@extensions) > 0) {
1545: $searchphrase = join(' OR ',@extensions);
1546: }
1547: }
1548: if (defined($searchphrase)) {
1.228 matthew 1549: my ($error,$SQLsearch) = &process_phrase_input($searchphrase,0,'mime');
1550: push @queries,$SQLsearch;
1.161 matthew 1551: $pretty_search_string .=$font.'mime</font> contains <b>'.
1552: $searchphrase.'</b><br />';
1.135 matthew 1553: }
1.204 matthew 1554: #
1.90 harris41 1555: # Evaluate option lists
1.243 albertel 1556: if ($env{'form.lowestgradelevel'} &&
1557: $env{'form.lowestgradelevel'} ne '0' &&
1558: $env{'form.lowestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1559: push(@queries,
1.243 albertel 1560: '(lowestgradelevel>='.$env{'form.lowestgradelevel'}.')');
1.216 matthew 1561: $pretty_search_string.="lowestgradelevel>=".
1.243 albertel 1562: $env{'form.lowestgradelevel'}."<br />\n";
1.216 matthew 1563: }
1.243 albertel 1564: if ($env{'form.highestgradelevel'} &&
1565: $env{'form.highestgradelevel'} ne '0' &&
1566: $env{'form.highestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1567: push(@queries,
1.243 albertel 1568: '(highestgradelevel<='.$env{'form.highestgradelevel'}.')');
1.216 matthew 1569: $pretty_search_string.="highestgradelevel<=".
1.243 albertel 1570: $env{'form.highestgradelevel'}."<br />\n";
1.216 matthew 1571: }
1.243 albertel 1572: if ($env{'form.language'} and $env{'form.language'} ne 'any') {
1573: push @queries,"(language like \"$env{'form.language'}\")";
1.143 matthew 1574: $pretty_search_string.=$font."language</font>= ".
1.243 albertel 1575: &Apache::loncommon::languagedescription($env{'form.language'}).
1.143 matthew 1576: "<br />\n";
1.58 harris41 1577: }
1.243 albertel 1578: if ($env{'form.copyright'} and $env{'form.copyright'} ne 'any') {
1579: push @queries,"(copyright like \"$env{'form.copyright'}\")";
1.143 matthew 1580: $pretty_search_string.=$font."copyright</font> = ".
1.243 albertel 1581: &Apache::loncommon::copyrightdescription($env{'form.copyright'}).
1.230 matthew 1582: "<br />\n";
1.58 harris41 1583: }
1.276 raeburn 1584: if ($env{'form.area'} eq 'portfolio') {
1585: #
1586: # Added metadata fields
1587: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1.279 raeburn 1588: my $field = $env{'form.addedfield_'.$i};
1589: $field =~ s/^\s*(\S*)\s*$/$1/;
1590: $field =~ s/\W/_/g;
1591: $field =~ tr/A-Z/a-z/;
1592: if ($field ne '') {
1593: my $value = $env{'form.addedvalues_'.$i};
1594: if ($value ne '') {
1.280 albertel 1595: $value =~ s/'/''/g; #' stupid emacs
1.279 raeburn 1596: my ($error,$query) =
1597: &process_phrase_input($value,0,'pf.value');
1598: if (!defined($error)) {
1599: push(@queries,"pf.field = '$field' AND $query");
1600: $pretty_search_string .=
1601: $font.$field.'</font>: '.
1602: $env{'form.addedvalues_'.$i}.'<br />';
1603: }
1604: } else {
1605: push(@queries,"pf.field = '$field' AND pf.value IS NULL");
1606: }
1.276 raeburn 1607: }
1608: }
1609: } else {
1610: #
1611: # Statistics
1612: foreach my $field (@StatsFields,@EvalFields) {
1613: my ($min,$max);
1614: if (exists($env{'form.'.$field.'_min'}) &&
1615: $env{'form.'.$field.'_min'} ne '') {
1616: $min = $env{'form.'.$field.'_min'};
1617: }
1618: if (exists($env{'form.'.$field.'_max'}) &&
1619: $env{'form.'.$field.'_max'} ne '') {
1620: $max = $env{'form.'.$field.'_max'};
1621: }
1622: next if (! defined($max) && ! defined($min));
1623: if (defined($min) && defined($max)) {
1624: ($min,$max) = sort {$a <=>$b} ($min,$max);
1625: }
1626: if (defined($min) && $min =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1627: push(@queries,'('.$field.'>'.$min.')');
1628: $pretty_search_string.=$font.$field.'</font>>'.$min.'<br />';
1629: }
1630: if (defined($max) && $max =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1631: push(@queries,'('.$field.'<'.$max.')');
1632: $pretty_search_string.=$font.$field.'</font><'.$max.'<br />';
1633: }
1.217 matthew 1634: }
1635: }
1636: #
1.90 harris41 1637: # Evaluate date windows
1.216 matthew 1638: my $cafter =
1639: &Apache::lonhtmlcommon::get_date_from_form('creationdate1');
1640: my $cbefore =
1641: &Apache::lonhtmlcommon::get_date_from_form('creationdate2');
1642: if ($cafter > $cbefore) {
1643: my $tmp = $cafter;
1644: $cafter = $cbefore;
1645: $cbefore = $tmp;
1646: }
1647: my $mafter =
1648: &Apache::lonhtmlcommon::get_date_from_form('revisiondate1');
1649: my $mbefore =
1650: &Apache::lonhtmlcommon::get_date_from_form('revisiondate2');
1651: if ($mafter > $mbefore) {
1652: my $tmp = $mafter;
1653: $mafter = $mbefore;
1654: $mbefore = $tmp;
1655: }
1656: my ($datequery,$error,$prettydate)=&build_date_queries($cafter,$cbefore,
1657: $mafter,$mbefore);
1658: if (defined($error)) {
1659: &output_date_error($r,$error,$closebutton,$hidden_fields);
1660: } elsif (defined($datequery)) {
1.143 matthew 1661: # Here is where you would set up pretty_search_string to output
1662: # date query information.
1.216 matthew 1663: $pretty_search_string .= '<br />'.$prettydate.'<br />';
1.60 harris41 1664: push @queries,$datequery;
1665: }
1.204 matthew 1666: #
1.90 harris41 1667: # Process form information for custom metadata querying
1.134 matthew 1668: my $customquery=undef;
1.204 matthew 1669: ##
1670: ## The custom metadata search was removed q long time ago mostly
1671: ## because I was unable to figureout exactly how it worked and could
1672: ## not imagine people actually using it. MH
1673: ##
1.243 albertel 1674: # if ($env{'form.custommetadata'}) {
1.204 matthew 1675: # $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".
1.243 albertel 1676: # $env{'form.custommetadata'}."</b><br />\n";
1.204 matthew 1677: # $customquery=&build_custommetadata_query('custommetadata',
1.243 albertel 1678: # $env{'form.custommetadata'});
1.204 matthew 1679: # }
1.134 matthew 1680: my $customshow=undef;
1.243 albertel 1681: # if ($env{'form.customshow'}) {
1.204 matthew 1682: # $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".
1.243 albertel 1683: # $env{'form.customshow'}."</b><br />\n";
1684: # $customshow=$env{'form.customshow'};
1.204 matthew 1685: # $customshow=~s/[^\w\s]//g;
1686: # my @fields=split(/\s+/,$customshow);
1687: # $customshow=join(" ",@fields);
1688: # }
1689: ##
1.132 matthew 1690: ## Deal with restrictions to given domains
1691: ##
1.254 www 1692: my ($libraries_to_query,$pretty_domains_string) = &parse_domain_restrictions();
1693: if ($pretty_domains_string) {
1.251 www 1694: $pretty_search_string .= $pretty_domains_string."<br />\n";
1695: }
1.180 matthew 1696: #
1697: if (@queries) {
1.277 raeburn 1698: if ($env{'form.area'} eq 'portfolio') {
1.300 raeburn 1699: $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 1700: } else {
1701: $query="SELECT * FROM metadata WHERE (".join(") AND (",@queries).')';
1702: }
1.180 matthew 1703: } elsif ($customquery) {
1704: $query = '';
1705: }
1.241 matthew 1706: #&Apache::lonnet::logthis('advanced query = '.$/.$query);
1.180 matthew 1707: return ($query,$customquery,$customshow,$libraries_to_query,
1708: $pretty_search_string);
1709: }
1710:
1711: sub parse_domain_restrictions {
1.132 matthew 1712: my $libraries_to_query = undef;
1.243 albertel 1713: # $env{'form.domains'} can be either a scalar or an array reference.
1.132 matthew 1714: # We need an array.
1.243 albertel 1715: if (! exists($env{'form.domains'}) || $env{'form.domains'} eq '') {
1.240 matthew 1716: return (undef,'',undef);
1.180 matthew 1717: }
1.245 albertel 1718: my @allowed_domains = &Apache::loncommon::get_env_multiple('form.domains');
1.204 matthew 1719: #
1.132 matthew 1720: my %domain_hash = ();
1.143 matthew 1721: my $pretty_domains_string;
1.132 matthew 1722: foreach (@allowed_domains) {
1723: $domain_hash{$_}++;
1724: }
1.143 matthew 1725: if ($domain_hash{'any'}) {
1.273 www 1726: $pretty_domains_string = &mt("in all LON-CAPA domains.");
1.143 matthew 1727: } else {
1728: if (@allowed_domains > 1) {
1.273 www 1729: $pretty_domains_string = &mt("in LON-CAPA domains:");
1.143 matthew 1730: } else {
1.273 www 1731: $pretty_domains_string = &mt("in LON-CAPA domain ");
1.143 matthew 1732: }
1733: foreach (sort @allowed_domains) {
1.152 matthew 1734: $pretty_domains_string .= "<b>".$_."</b> ";
1.132 matthew 1735: }
1.322 droeschl 1736: my %servers = &Apache::lonnet::get_unique_servers(\@allowed_domains,
1.280 albertel 1737: 'library');
1738: $libraries_to_query = [keys(%servers)];
1.132 matthew 1739: }
1.239 matthew 1740: return ($libraries_to_query,
1.254 www 1741: $pretty_domains_string);
1.18 harris41 1742: }
1743:
1.122 matthew 1744: ######################################################################
1745: ######################################################################
1746:
1747: =pod
1748:
1.134 matthew 1749: =item &parse_basic_search()
1.122 matthew 1750:
1.134 matthew 1751: Parse the basic search form and return a scalar containing an sql query.
1.126 matthew 1752:
1.122 matthew 1753: =cut
1754:
1755: ######################################################################
1756: ######################################################################
1.134 matthew 1757: sub parse_basic_search {
1.145 matthew 1758: my ($r,$closebutton)=@_;
1.204 matthew 1759: #
1.64 harris41 1760: # Clean up fields for safety
1761: for my $field ('basicexp') {
1.300 raeburn 1762: $env{"form.$field"}=~s/[^\w\s\'\"\!\(\)\-\*]//g;
1.64 harris41 1763: }
1.117 matthew 1764: foreach ('mode','form','element') {
1765: # is this required? Hmmm.
1.243 albertel 1766: next unless (exists($env{"form.$_"}));
1.265 www 1767: $env{"form.$_"}=&unescape($env{"form.$_"});
1.243 albertel 1768: $env{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1769: }
1.254 www 1770: my ($libraries_to_query,$pretty_domains_string) = &parse_domain_restrictions();
1.204 matthew 1771: #
1772: # Check to see if enough of a query is filled in
1.243 albertel 1773: my $search_string = $env{'form.basicexp'};
1.220 matthew 1774: if (! &filled($search_string)) {
1.151 matthew 1775: &output_blank_field_error($r,$closebutton,'phase=disp_basic');
1.24 harris41 1776: return OK;
1777: }
1.228 matthew 1778: my $pretty_search_string=$search_string;
1.224 matthew 1779: my @Queries;
1.276 raeburn 1780: my @fields = ('title','author','subject','notes','abstract','keywords');
1781: my $searchfield;
1782: if ($env{'form.area'} eq 'portfolio') {
1783: $searchfield = 'concat_ws(" ",pm.'.join(',pm.',@fields).')';
1784: } else {
1785: $searchfield = 'concat_ws(" ",'.join(',',@fields).')';
1786: }
1.228 matthew 1787: my ($error,$SQLQuery) = &process_phrase_input($search_string,
1.243 albertel 1788: $env{'form.related'},
1.228 matthew 1789: $searchfield);
1790: if ($error) {
1791: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic',
1792: '','basicexp');
1793: return;
1.141 matthew 1794: }
1.228 matthew 1795: push(@Queries,$SQLQuery);
1796: #foreach my $q (@Queries) {
1797: # &Apache::lonnet::logthis(' '.$q);
1798: #}
1.276 raeburn 1799: my $final_query;
1800: if ($env{'form.area'} eq 'portfolio') {
1.300 raeburn 1801: $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 1802: } else {
1803: $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries);
1804: }
1.204 matthew 1805: #
1.273 www 1806: if ($env{'form.related'}) {
1807: $pretty_search_string.=' '.&mt('(including related words)');
1808: }
1.180 matthew 1809: if (defined($pretty_domains_string) && $pretty_domains_string ne '') {
1810: $pretty_search_string .= ' '.$pretty_domains_string;
1811: }
1.143 matthew 1812: $pretty_search_string .= "<br />\n";
1.225 matthew 1813: $pretty_search_string =~ s:^<br /> and ::;
1.276 raeburn 1814: &Apache::lonnet::logthis('simple search final query = '.$/.$final_query);
1.183 matthew 1815: return ($final_query,$pretty_search_string,
1.180 matthew 1816: $libraries_to_query);
1.22 harris41 1817: }
1818:
1.228 matthew 1819:
1820: ###############################################################
1821: ###############################################################
1822:
1823: my @Phrases;
1824:
1825: sub concat {
1826: my ($item) = @_;
1827: my $results = '';
1828: foreach (@$item) {
1829: if (ref($_) eq 'ARRAY') {
1830: $results .= join(' ',@$_);
1831: }
1832: }
1833: return $results;
1834: }
1835:
1.224 matthew 1836: sub process_phrase_input {
1.228 matthew 1837: my ($phrase,$related,$field)=@_;
1838: #&Apache::lonnet::logthis('phrase = :'.$phrase.':');
1839: my $grammar = <<'ENDGRAMMAR';
1840: searchphrase:
1841: expression /^\Z/ {
1842: # &Apache::lonsearchcat::print_item(\@item,0);
1843: [@item];
1844: }
1845: expression:
1846: phrase(s) {
1847: [@item];
1848: }
1849: phrase:
1850: orword {
1851: [@item];
1852: }
1853: | andword {
1854: [@item];
1855: }
1856: | minusword {
1857: unshift(@::Phrases,$item[1]->[0]);
1858: unshift(@::Phrases,$item[1]->[1]);
1859: [@item];
1860: }
1861: | word {
1862: unshift(@::Phrases,$item[1]);
1863: [@item];
1864: }
1865: #
1866: orword:
1867: word 'OR' phrase {
1868: unshift(@::Phrases,'OR');
1869: unshift(@::Phrases,$item[1]);
1870: [@item];
1871: }
1872: | word 'or' phrase {
1873: unshift(@::Phrases,'OR');
1874: unshift(@::Phrases,$item[1]);
1875: [@item];
1876: }
1877: | minusword 'OR' phrase {
1878: unshift(@::Phrases,'OR');
1879: unshift(@::Phrases,$item[1]->[0]);
1880: unshift(@::Phrases,$item[1]->[1]);
1881: [@item];
1882: }
1883: | minusword 'or' phrase {
1884: unshift(@::Phrases,'OR');
1885: unshift(@::Phrases,$item[1]->[0]);
1886: unshift(@::Phrases,$item[1]->[1]);
1887: [@item];
1888: }
1889: andword:
1890: word phrase {
1891: unshift(@::Phrases,'AND');
1892: unshift(@::Phrases,$item[1]);
1893: [@item];
1894: }
1895: | minusword phrase {
1896: unshift(@::Phrases,'AND');
1897: unshift(@::Phrases,$item[1]->[0]);
1898: unshift(@::Phrases,$item[1]->[1]);
1899: [@item];
1900: }
1901: #
1902: minusword:
1903: '-' word {
1904: [$item[2],'NOT'];
1905: }
1906: word:
1907: "'" term(s) "'" {
1908: &Apache::lonsearchcat::concat(\@item);
1909: }
1910: | '"' term(s) '"' {
1911: &Apache::lonsearchcat::concat(\@item);
1912: }
1913: | term {
1914: $item[1];
1915: }
1916: term:
1.284 albertel 1917: /[\w\Q:!@#$%^&*()+_=|{}<>,.;\\\/?\E\-]+/ {
1.228 matthew 1918: $item[1];
1919: }
1920: ENDGRAMMAR
1921: #
1922: # The end result of parsing the phrase with the grammar is an array
1923: # @::Phrases.
1924: # $phrase = "gene splicing" or cat -> "gene splicing","OR","cat"
1925: # $phrase = "genetic engineering" -dna ->
1926: # "genetic engineering","AND","NOT","dna"
1927: # $phrase = cat or dog -poodle -> "cat","OR","dog","AND","NOT","poodle"
1928: undef(@::Phrases);
1929: my $p = new Parse::RecDescent($grammar);
1930: if (! defined($p->searchphrase($phrase))) {
1931: &Apache::lonnet::logthis('lonsearchcat:unable to process:'.$phrase);
1932: return 'Unable to process phrase '.$phrase;
1933: }
1934: #
1935: # Go through the phrases and make sense of them.
1936: # Apply modifiers NOT OR and AND to the phrases.
1937: my @NewPhrases;
1938: while(@::Phrases) {
1939: my $phrase = shift(@::Phrases);
1940: # &Apache::lonnet::logthis('phrase = '.$phrase);
1941: my $phrasedata;
1942: if ($phrase =~ /^(NOT|OR|AND)$/) {
1943: if ($phrase eq 'OR') {
1944: $phrasedata->{'or'}++;
1945: if (! @::Phrases) { $phrasedata = undef; last; }
1946: $phrase = shift(@::Phrases);
1947: } elsif ($phrase eq 'AND') {
1948: $phrasedata->{'and'}++;
1949: if (! @::Phrases) { $phrasedata = undef; last; }
1950: $phrase = shift(@::Phrases);
1.224 matthew 1951: }
1.228 matthew 1952: if ($phrase eq 'NOT') {
1953: $phrasedata->{'negate'}++;
1954: if (! @::Phrases) { $phrasedata = undef; last; }
1955: $phrase = shift(@::Phrases);
1.224 matthew 1956: }
1.228 matthew 1957: }
1958: $phrasedata->{'phrase'} = $phrase;
1959: if ($related) {
1960: my @NewWords;
1961: (undef,@NewWords) = &related_version($phrasedata->{'phrase'});
1962: $phrasedata->{'related_words'} = \@NewWords;
1963: }
1964: push(@NewPhrases,$phrasedata);
1965: }
1966: #
1967: # Actually build the sql query from the phrases
1968: my $SQLQuery;
1969: foreach my $phrase (@NewPhrases) {
1970: my $query;
1971: if ($phrase->{'negate'}) {
1972: $query .= $field.' NOT LIKE "%'.$phrase->{'phrase'}.'%"';
1.224 matthew 1973: } else {
1.228 matthew 1974: $query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"';
1975: }
1976: foreach my $related (@{$phrase->{'related_words'}}) {
1977: if ($phrase->{'negate'}) {
1978: $query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"';
1979: } else {
1980: $query .= ' OR '.$field.' LIKE "%'.$related.'%"';
1981: }
1982: }
1983: if ($SQLQuery) {
1984: if ($phrase->{'or'}) {
1985: $SQLQuery .= ' OR ('.$query.')';
1986: } else {
1987: $SQLQuery .= ' AND ('.$query.')';
1.224 matthew 1988: }
1.228 matthew 1989: } else {
1990: $SQLQuery = '('.$query.')';
1.224 matthew 1991: }
1992: }
1993: #
1.228 matthew 1994: # &Apache::lonnet::logthis("SQLQuery = $SQLQuery");
1.224 matthew 1995: #
1.228 matthew 1996: return undef,$SQLQuery;
1.224 matthew 1997: }
1998:
1.122 matthew 1999: ######################################################################
2000: ######################################################################
2001:
2002: =pod
2003:
1.204 matthew 2004: =item &related_version()
1.142 matthew 2005:
2006: Modifies an input string to include related words. Words in the string
2007: are replaced with parenthesized lists of 'OR'd words. For example
2008: "torque" is replaced with "(torque OR word1 OR word2 OR ...)".
2009:
2010: Note: Using this twice on a string is probably silly.
2011:
2012: =cut
2013:
2014: ######################################################################
2015: ######################################################################
2016: sub related_version {
1.224 matthew 2017: my ($word) = @_;
2018: return (undef) if (lc($word) =~ /\b(or|and|not)\b/);
2019: my @Words = &Apache::loncommon::get_related_words($word);
2020: # Only use 4 related words
2021: @Words = ($#Words>4? @Words[0..4] : @Words);
2022: my $result = join " OR ", ($word,@Words);
2023: return $result,sort(@Words);
1.142 matthew 2024: }
2025:
1.98 harris41 2026:
1.122 matthew 2027: ######################################################################
2028: ######################################################################
2029:
2030: =pod
2031:
2032: =item &build_custommetadata_query()
2033:
1.126 matthew 2034: Constructs a custom metadata query using a rather heinous regular
2035: expression.
2036:
1.122 matthew 2037: =cut
2038:
2039: ######################################################################
2040: ######################################################################
1.98 harris41 2041: sub build_custommetadata_query {
2042: my ($field_name,$logic_statement)=@_;
2043: my $q=new Text::Query('abc',
2044: -parse => 'Text::Query::ParseAdvanced',
2045: -build => 'Text::Query::BuildAdvancedString');
2046: $q->prepare($logic_statement);
2047: my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'};
2048: # quick fix to change literal into xml tag-matching
2049: # will eventually have to write a separate builder module
1.122 matthew 2050: # wordone=wordtwo becomes\<wordone\>[^\<] *wordtwo[^\<]*\<\/wordone\>
2051: $matchexp =~ s/(\w+)\\=([\w\\\+]+)?# wordone=wordtwo is changed to
2052: /\\<$1\\>?# \<wordone\>
2053: \[\^\\<\]?# [^\<]
2054: \*$2\[\^\\<\]?# *wordtwo[^\<]
2055: \*\\<\\\/$1\\>?# *\<\/wordone\>
2056: /g;
1.98 harris41 2057: return $matchexp;
2058: }
2059:
1.22 harris41 2060:
1.122 matthew 2061: ######################################################################
2062: ######################################################################
2063:
2064: =pod
2065:
2066: =item &build_date_queries()
2067:
1.126 matthew 2068: Builds a SQL logic query to check time/date entries.
2069: Also reports errors (check for /^Incorrect/).
2070:
1.122 matthew 2071: =cut
2072:
2073: ######################################################################
2074: ######################################################################
1.98 harris41 2075: sub build_date_queries {
1.216 matthew 2076: my ($cafter,$cbefore,$mafter,$mbefore) = @_;
2077: my ($result,$error,$pretty_string);
2078: #
2079: # Verify the input
2080: if (! defined($cafter) && ! defined($cbefore) &&
2081: ! defined($mafter) && ! defined($mbefore)) {
2082: # This is an okay situation, so return undef for the error
2083: return (undef,undef,undef);
2084: }
2085: if ((defined($cafter) && ! defined($cbefore)) ||
2086: (defined($cbefore) && ! defined($cafter))) {
2087: # This is bad, so let them know
2088: $error = &mt('Incorrect entry for the creation date. '.
2089: 'You must specify both the beginning and ending dates.');
2090: }
2091: if (! defined($error) &&
2092: ((defined($mafter) && ! defined($mbefore)) ||
2093: (defined($mbefore) && ! defined($mafter)))) {
2094: # This is also bad, so let them know
2095: $error = &mt('Incorrect entry for the last revision date. '.
2096: 'You must specify both the beginning and ending dates.');
1.98 harris41 2097: }
1.216 matthew 2098: if (! defined($error)) {
2099: #
2100: # Build the queries
2101: my @queries;
2102: if (defined($cbefore) && defined($cafter)) {
2103: my (undef,undef,undef,$caday,$camon,$cayear) = localtime($cafter);
2104: my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore);
2105: # Correct for year being relative to 1900
2106: $cayear+=1900; $cbyear+=1900;
2107: my $cquery=
2108: '(creationdate BETWEEN '.
2109: "'".$cayear.'-'.$camon.'-'.$caday."'".
2110: ' AND '.
2111: "'".$cbyear.'-'.$cbmon.'-'.$cbday." 23:59:59')";
2112: $pretty_string .= '<br />' if (defined($pretty_string));
2113: $pretty_string .=
2114: &mt('created between [_1] and [_2]',
2115: &Apache::lonlocal::locallocaltime($cafter),
2116: &Apache::lonlocal::locallocaltime($cbefore+24*60*60-1));
2117: push(@queries,$cquery);
2118: $pretty_string =~ s/ 00:00:00//g;
2119: }
2120: if (defined($mbefore) && defined($mafter)) {
2121: my (undef,undef,undef,$maday,$mamon,$mayear) = localtime($mafter);
2122: my (undef,undef,undef,$mbday,$mbmon,$mbyear) = localtime($mbefore);
2123: # Correct for year being relative to 1900
2124: $mayear+=1900; $mbyear+=1900;
2125: my $mquery=
2126: '(lastrevisiondate BETWEEN '.
2127: "'".$mayear.'-'.$mamon.'-'.$maday."'".
2128: ' AND '.
2129: "'".$mbyear.'-'.$mbmon.'-'.$mbday." 23:59:59')";
2130: push(@queries,$mquery);
2131: $pretty_string .= '<br />' if (defined($pretty_string));
2132: $pretty_string .=
2133: &mt('last revised between [_1] and [_2]',
2134: &Apache::lonlocal::locallocaltime($mafter),
2135: &Apache::lonlocal::locallocaltime($mbefore+24*60*60-1));
2136: $pretty_string =~ s/ 00:00:00//g;
2137: }
2138: if (@queries) {
2139: $result .= join(" AND ",@queries);
2140: }
1.98 harris41 2141: }
1.216 matthew 2142: return ($result,$error,$pretty_string);
1.18 harris41 2143: }
1.6 harris41 2144:
1.122 matthew 2145: ######################################################################
2146: ######################################################################
2147:
1.144 matthew 2148: =pod
2149:
2150: =item ©right_check()
2151:
1.204 matthew 2152: Inputs: $Metadata, a hash pointer of metadata for a resource.
2153:
2154: Returns: 1 if the resource is available to the user making the query,
2155: 0 otherwise.
2156:
1.144 matthew 2157: =cut
2158:
2159: ######################################################################
2160: ######################################################################
2161: sub copyright_check {
2162: my $Metadata = shift;
2163: # Check copyright tags and skip results the user cannot use
2164: my (undef,undef,$resdom,$resname) = split('/',
2165: $Metadata->{'url'});
2166: # Check for priv
2167: if (($Metadata->{'copyright'} eq 'priv') &&
1.243 albertel 2168: (($env{'user.name'} ne $resname) &&
2169: ($env{'user.domain'} ne $resdom))) {
1.144 matthew 2170: return 0;
2171: }
2172: # Check for domain
2173: if (($Metadata->{'copyright'} eq 'domain') &&
1.243 albertel 2174: ($env{'user.domain'} ne $resdom)) {
1.144 matthew 2175: return 0;
2176: }
1.294 www 2177: # Check for custom rights
2178: if ($Metadata->{'copyright'} eq 'custom') {
1.296 raeburn 2179: return &Apache::lonnet::customaccess('bre',$Metadata->{'url'});
1.294 www 2180: }
1.144 matthew 2181: return 1;
2182: }
2183:
1.151 matthew 2184: ######################################################################
2185: ######################################################################
2186:
2187: =pod
2188:
1.204 matthew 2189: =item &ensure_db_and_table()
1.151 matthew 2190:
2191: Ensure we can get lonmysql to connect to the database and the table we
2192: need exists.
2193:
2194: Inputs: $r, table id
2195:
2196: Returns: undef on error, 1 if the table exists.
2197:
2198: =cut
2199:
2200: ######################################################################
2201: ######################################################################
2202: sub ensure_db_and_table {
2203: my ($r,$table) = @_;
2204: ##
2205: ## Sanity check the table id.
2206: ##
2207: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.313 bisitz 2208: $r->print(&Apache::loncommon::start_page(&mt('Error'))
2209: . '<p>table: |'.$table.'|</p>' # SB
2210: .'<p class="LC_error">'
2211: .&mt('Unable to retrieve search results. '
2212: .'Unable to determine the table results were saved in.')
2213: .&Apache::loncommon::end_page()
2214: );
1.151 matthew 2215: return undef;
2216: }
2217: ##
2218: ## Make sure we can connect and the table exists.
2219: ##
2220: my $connection_result = &Apache::lonmysql::connect_to_db();
2221: if (!defined($connection_result)) {
2222: $r->print("Unable to connect to the MySQL database where your results".
1.286 albertel 2223: " are saved.".
1.256 albertel 2224: &Apache::loncommon::end_page());
1.151 matthew 2225: &Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to".
2226: " connect to database.");
2227: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2228: return undef;
2229: }
2230: my $table_check = &Apache::lonmysql::check_table($table);
2231: if (! defined($table_check)) {
1.256 albertel 2232: $r->print("A MySQL error has occurred.</form>".
2233: &Apache::loncommon::end_page());
1.151 matthew 2234: &Apache::lonnet::logthis("lonmysql was unable to determine the status".
2235: " of table ".$table);
2236: return undef;
2237: } elsif (! $table_check) {
2238: $r->print("The table of results could not be found.");
2239: &Apache::lonnet::logthis("The user requested a table, ".$table.
2240: ", that could not be found.");
2241: return undef;
2242: }
2243: return 1;
2244: }
2245:
2246: ######################################################################
2247: ######################################################################
2248:
2249: =pod
2250:
1.204 matthew 2251: =item &print_sort_form()
2252:
2253: The sort feature is not implemented at this time. This form just prints
2254: a link to change the search query.
1.151 matthew 2255:
2256: =cut
2257:
2258: ######################################################################
2259: ######################################################################
2260: sub print_sort_form {
2261: my ($r,$pretty_query_string) = @_;
1.224 matthew 2262:
1.151 matthew 2263: ##
1.187 www 2264: my %SortableFields=&Apache::lonlocal::texthash(
2265: id => 'Default',
1.151 matthew 2266: title => 'Title',
2267: author => 'Author',
2268: subject => 'Subject',
2269: url => 'URL',
2270: version => 'Version Number',
2271: mime => 'Mime type',
2272: lang => 'Language',
2273: owner => 'Owner/Publisher',
2274: copyright => 'Copyright',
2275: hostname => 'Host',
2276: creationdate => 'Creation Date',
1.187 www 2277: lastrevisiondate => 'Revision Date'
1.151 matthew 2278: );
2279: ##
1.243 albertel 2280: my $table = $env{'form.table'};
1.151 matthew 2281: return if (! &ensure_db_and_table($r,$table));
2282: ##
2283: ## Get the number of results
2284: ##
2285: my $total_results = &Apache::lonmysql::number_of_rows($table);
2286: if (! defined($total_results)) {
1.256 albertel 2287: $r->print("A MySQL error has occurred.</form>".
2288: &Apache::loncommon::end_page());
1.151 matthew 2289: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2290: " of rows in table ".$table);
2291: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2292: return;
2293: }
1.257 albertel 2294: my $js =<<END;
2295: <script type="text/javascript">
1.313 bisitz 2296: // <![CDATA[
1.151 matthew 2297: function change_sort() {
2298: var newloc = "/adm/searchcat?phase=results";
1.323 ! bisitz 2299: newloc += "&persistent_db_id=$env{'form.persistent_db_id'}";
! 2300: newloc += "&sortby=";
1.151 matthew 2301: newloc += document.forms.statusform.elements.sortby.value;
2302: parent.resultsframe.location= newloc;
2303: }
1.313 bisitz 2304: // ]]>
1.151 matthew 2305: </script>
1.257 albertel 2306: END
2307:
1.307 bisitz 2308: my $start_page = &Apache::loncommon::start_page('Results',$js);
1.257 albertel 2309: my $breadcrumbs=
1.263 albertel 2310: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2311: $env{'form.catalogmode'} ne 'import');
1.257 albertel 2312:
2313: my $result = <<END;
2314: $start_page
2315: $breadcrumbs
1.267 www 2316: <form name="statusform" action="" method="post" target="_top">
1.268 www 2317: <input type="hidden" name="catalogmode" value="import" />
1.270 www 2318: <input type="hidden" name="acts" value="" />
1.151 matthew 2319: END
2320:
2321: #<h2>Sort Results</h2>
2322: #Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();">
1.243 albertel 2323: # $env{'form.sortby'} = 'id' if (! defined($env{'form.sortby'}));
1.151 matthew 2324: # foreach (keys(%SortableFields)) {
2325: # $result.="<option name=\"$_\"";
1.243 albertel 2326: # if ($_ eq $env{'form.sortby'}) {
1.151 matthew 2327: # $result.=" selected ";
2328: # }
2329: # $result.=" >$SortableFields{$_}</option>\n";
2330: # }
2331: # $result.="</select>\n";
2332: my $revise = &revise_button();
1.289 bisitz 2333: $result.='<p>'
2334: .&mt('There are [_1] matches to your query.',$total_results)
2335: .' '.$revise.'</p>'
2336: .'<p>'.&mt('Search: ').$pretty_query_string
2337: .'</p></form>';
1.256 albertel 2338: $r->print($result.&Apache::loncommon::end_page());
1.151 matthew 2339: return;
2340: }
2341:
1.144 matthew 2342: #####################################################################
2343: #####################################################################
2344:
2345: =pod
2346:
2347: =item MySQL Table Description
2348:
2349: MySQL table creation requires a precise description of the data to be
2350: stored. The use of the correct types to hold data is vital to efficient
2351: storage and quick retrieval of records. The columns must be described in
2352: the following format:
2353:
2354: =cut
2355:
1.170 matthew 2356: #####################################################################
2357: #####################################################################
1.204 matthew 2358: #
2359: # These should probably be scoped but I don't have time right now...
2360: #
2361: my @Datatypes;
2362: my @Fullindicies;
1.147 matthew 2363:
1.144 matthew 2364: ######################################################################
2365: ######################################################################
2366:
2367: =pod
2368:
1.146 matthew 2369: =item &create_results_table()
2370:
2371: Creates the table of search results by calling lonmysql. Stores the
1.243 albertel 2372: table id in $env{'form.table'}
1.146 matthew 2373:
1.276 raeburn 2374: Inputs: search area - either res or portfolio
1.146 matthew 2375:
2376: Returns: the identifier of the table on success, undef on error.
2377:
2378: =cut
2379:
2380: ######################################################################
2381: ######################################################################
1.204 matthew 2382: sub set_up_table_structure {
1.276 raeburn 2383: my ($tabletype) = @_;
1.204 matthew 2384: my ($datatypes,$fullindicies) =
1.276 raeburn 2385: &LONCAPA::lonmetadata::describe_metadata_storage($tabletype);
1.212 matthew 2386: # Copy the table description before modifying it...
2387: @Datatypes = @{$datatypes};
2388: unshift(@Datatypes,{name => 'id',
1.204 matthew 2389: type => 'MEDIUMINT',
2390: restrictions => 'UNSIGNED NOT NULL',
2391: primary_key => 'yes',
2392: auto_inc => 'yes' });
2393: @Fullindicies = @{$fullindicies};
2394: return;
2395: }
2396:
1.146 matthew 2397: sub create_results_table {
1.276 raeburn 2398: my ($area) = @_;
2399: if ($area eq 'portfolio') {
2400: &set_up_table_structure('portfolio_search');
2401: } else {
2402: &set_up_table_structure('metadata');
2403: }
1.146 matthew 2404: my $table = &Apache::lonmysql::create_table
1.170 matthew 2405: ( { columns => \@Datatypes,
1.172 matthew 2406: FULLTEXT => [{'columns' => \@Fullindicies},],
1.146 matthew 2407: } );
2408: if (defined($table)) {
1.243 albertel 2409: $env{'form.table'} = $table;
1.146 matthew 2410: return $table;
2411: }
2412: return undef; # Error...
2413: }
1.148 matthew 2414:
1.146 matthew 2415: ######################################################################
2416: ######################################################################
2417:
2418: =pod
2419:
1.150 matthew 2420: =item Search Status update functions
1.144 matthew 2421:
1.150 matthew 2422: Each of the following functions changes the values of one of the
2423: input fields used to display the search status to the user. The names
2424: should be explanatory.
1.144 matthew 2425:
1.150 matthew 2426: Inputs: Apache request handler ($r), text to display.
1.148 matthew 2427:
1.150 matthew 2428: Returns: Nothing.
1.148 matthew 2429:
2430: =over 4
2431:
2432: =item &update_count_status()
2433:
1.150 matthew 2434: =item &update_status()
1.148 matthew 2435:
1.150 matthew 2436: =item &update_seconds()
1.148 matthew 2437:
2438: =back
2439:
2440: =cut
2441:
2442: ######################################################################
2443: ######################################################################
2444: sub update_count_status {
2445: my ($r,$text) = @_;
2446: $text =~ s/\'/\\\'/g;
1.313 bisitz 2447: $r->print(<<SCRIPT);
2448: <script type="text/javascript">
2449: // <![CDATA[
2450: document.statusform.count.value = ' $text'
2451: // ]]>
2452: </script>
2453: SCRIPT
2454:
1.148 matthew 2455: $r->rflush();
2456: }
2457:
1.150 matthew 2458: sub update_status {
1.148 matthew 2459: my ($r,$text) = @_;
2460: $text =~ s/\'/\\\'/g;
1.313 bisitz 2461: $r->print(<<SCRIPT);
2462: <script type="text/javascript">
2463: // <![CDATA[
2464: document.statusform.status.value = ' $text'
2465: // ]]>
2466: </script>
2467: SCRIPT
2468:
1.148 matthew 2469: $r->rflush();
2470: }
2471:
1.214 matthew 2472: {
1.250 www 2473: my $max_time = 300; # seconds for the search to complete
1.214 matthew 2474: my $start_time = 0;
2475: my $last_time = 0;
2476:
2477: sub reset_timing {
2478: $start_time = 0;
2479: $last_time = 0;
2480: }
2481:
2482: sub time_left {
2483: if ($start_time == 0) {
2484: $start_time = time;
2485: }
2486: my $time_left = $max_time - (time - $start_time);
2487: $time_left = 0 if ($time_left < 0);
2488: return $time_left;
2489: }
2490:
1.150 matthew 2491: sub update_seconds {
1.214 matthew 2492: my ($r) = @_;
2493: my $time = &time_left();
2494: if (($last_time-$time) > 0) {
1.313 bisitz 2495: $r->print(<<SCRIPT);
2496: <script type="text/javascript">
2497: // <![CDATA[
2498: document.statusform.seconds.value = '$time'
2499: // ]]>
2500: </script>
2501: SCRIPT
2502:
1.214 matthew 2503: $r->rflush();
2504: }
2505: $last_time = $time;
2506: }
2507:
1.148 matthew 2508: }
2509:
2510: ######################################################################
2511: ######################################################################
2512:
2513: =pod
2514:
1.204 matthew 2515: =item &revise_button()
1.151 matthew 2516:
2517: Inputs: None
2518:
2519: Returns: html string for a 'revise search' button.
2520:
2521: =cut
2522:
2523: ######################################################################
2524: ######################################################################
2525: sub revise_button {
1.289 bisitz 2526: my $revisetext = &mt('Revise search');
1.151 matthew 2527: my $revise_phase = 'disp_basic';
1.243 albertel 2528: $revise_phase = 'disp_adv' if ($env{'form.searchmode'} eq 'advanced');
1.151 matthew 2529: my $newloc = '/adm/searchcat'.
1.243 albertel 2530: '?persistent_db_id='.$env{'form.persistent_db_id'}.
1.309 bisitz 2531: '&cleargroupsort=1'.
2532: '&phase='.$revise_phase;
1.289 bisitz 2533: my $result = qq{<input type="button" value="$revisetext" name="revise"} .
1.313 bisitz 2534: qq{ onclick="parent.location='$newloc';" /> };
1.151 matthew 2535: return $result;
2536: }
2537:
2538: ######################################################################
2539: ######################################################################
2540:
2541: =pod
2542:
1.204 matthew 2543: =item &run_search()
2544:
2545: Executes a search query by sending it the the other servers and putting the
2546: results into MySQL.
1.144 matthew 2547:
2548: =cut
2549:
2550: ######################################################################
2551: ######################################################################
2552: sub run_search {
1.276 raeburn 2553: my ($r,$query,$customquery,$customshow,$serverlist,
2554: $pretty_string,$area) = @_;
2555: my $tabletype = 'metadata';
2556: if ($area eq 'portfolio') {
2557: $tabletype = 'portfolio_search';
2558: }
1.150 matthew 2559: my $connection = $r->connection;
1.144 matthew 2560: #
1.146 matthew 2561: # Print run_search header
2562: #
1.307 bisitz 2563: my $start_page = &Apache::loncommon::start_page('Search Status',undef);
1.263 albertel 2564: my $breadcrumbs =
2565: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2566: $env{'form.catalogmode'} ne 'import');
1.151 matthew 2567: $r->print(<<END);
1.257 albertel 2568: $start_page
2569: $breadcrumbs
1.151 matthew 2570: END
1.230 matthew 2571: # Remove leading and trailing <br />
2572: $pretty_string =~ s:^\s*<br />::i;
2573: $pretty_string =~ s:(<br />)*\s*$::im;
2574: my @Lines = split("<br />",$pretty_string);
2575: # I keep getting blank items at the end of the list, hence the following:
2576: while ($Lines[-1] =~ /^\s*$/ && @Lines) {
2577: pop(@Lines);
2578: }
1.152 matthew 2579: if (@Lines > 2) {
1.298 bisitz 2580: $pretty_string = join '<br />',(@Lines[0..2],'...<br />');
1.151 matthew 2581: }
1.214 matthew 2582: $r->print(&mt("Search: [_1]",$pretty_string));
1.146 matthew 2583: $r->rflush();
2584: #
1.145 matthew 2585: # Determine the servers we need to contact.
1.144 matthew 2586: my @Servers_to_contact;
2587: if (defined($serverlist)) {
1.152 matthew 2588: if (ref($serverlist) eq 'ARRAY') {
2589: @Servers_to_contact = @$serverlist;
2590: } else {
2591: @Servers_to_contact = ($serverlist);
2592: }
1.144 matthew 2593: } else {
1.322 droeschl 2594: my %all_library_servers = &Apache::lonnet::unique_library();
1.281 albertel 2595: @Servers_to_contact = sort(keys(%all_library_servers));
1.144 matthew 2596: }
2597: my %Server_status;
1.214 matthew 2598: #
2599: # Check on the mysql table we will use to store results.
1.243 albertel 2600: my $table =$env{'form.table'};
1.150 matthew 2601: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.286 albertel 2602: $r->print("Unable to determine table id to save search results in.".
1.256 albertel 2603: "The search has been aborted.".
2604: &Apache::loncommon::end_page());
1.147 matthew 2605: return;
2606: }
2607: my $table_status = &Apache::lonmysql::check_table($table);
2608: if (! defined($table_status)) {
1.256 albertel 2609: $r->print("Unable to determine status of table.".
2610: &Apache::loncommon::end_page());
1.147 matthew 2611: &Apache::lonnet::logthis("Bogus table id of $table for ".
1.243 albertel 2612: "$env{'user.name'} @ $env{'user.domain'}");
1.147 matthew 2613: &Apache::lonnet::logthis("lonmysql error = ".
1.144 matthew 2614: &Apache::lonmysql::get_error());
1.147 matthew 2615: return;
2616: }
2617: if (! $table_status) {
1.204 matthew 2618: &Apache::lonnet::logthis("lonmysql error = ".
2619: &Apache::lonmysql::get_error());
2620: &Apache::lonnet::logthis("lonmysql debug = ".
2621: &Apache::lonmysql::get_debug());
2622: &Apache::lonnet::logthis('table status = "'.$table_status.'"');
1.147 matthew 2623: $r->print("The table id,$table, we tried to use is invalid.".
1.256 albertel 2624: "The search has been aborted.".
2625: &Apache::loncommon::end_page());
1.144 matthew 2626: return;
2627: }
1.145 matthew 2628: ##
1.146 matthew 2629: ## Prepare for the big loop.
1.144 matthew 2630: my $hitcountsum;
1.276 raeburn 2631: my %matches;
1.144 matthew 2632: my $server;
2633: my $status;
1.151 matthew 2634: my $revise = &revise_button();
1.299 raeburn 2635: $r->print('<form name="statusform" action="" method="post">'."\n".
2636: '<input type="hidden" name="acts" value="" />'."\n".
2637: '<table border="0"><tr><td>'."\n".
2638: &Apache::loncommon::start_data_table());
1.298 bisitz 2639: $r->print(&Apache::loncommon::start_data_table_header_row()
2640: .'<th>'.&mt('Status').'</th>'
2641: .'<th>'.&mt('Total Matches').'</th>'
2642: .'<th>'.&mt('Time Remaining').'</th>'
1.299 raeburn 2643: .&Apache::loncommon::end_data_table_header_row()
2644: .&Apache::loncommon::start_data_table_row()
1.298 bisitz 2645: .'<td><input type="text" name="status" value="" size="50" readonly="readonly" /></td>'
2646: .'<td><input type="text" name="count" value="" size="10" readonly="readonly" /></td>'
2647: .'<td><input type="text" name="seconds" value="" size="8" readonly="readonly" /></td>'
1.299 raeburn 2648: .&Apache::loncommon::end_data_table_row()
2649: .&Apache::loncommon::end_data_table()
2650: .'</td><td> </td><td>'.$revise.'</td></tr></table></form>');
1.148 matthew 2651: $r->rflush();
1.214 matthew 2652: &reset_timing();
2653: &update_seconds($r);
2654: &update_status($r,&mt('contacting [_1]',$Servers_to_contact[0]));
2655: while (&time_left() &&
1.144 matthew 2656: ((@Servers_to_contact) || keys(%Server_status))) {
1.214 matthew 2657: &update_seconds($r);
2658: #
2659: # Send out a search request
1.144 matthew 2660: if (@Servers_to_contact) {
2661: # Contact one server
2662: my $server = shift(@Servers_to_contact);
1.214 matthew 2663: &update_status($r,&mt('contacting [_1]',$server));
1.144 matthew 2664: my $reply=&Apache::lonnet::metadata_query($query,$customquery,
2665: $customshow,[$server]);
2666: ($server) = keys(%$reply);
2667: $Server_status{$server} = $reply->{$server};
2668: } else {
1.150 matthew 2669: # wait a sec. to give time for files to be written
2670: # This sleep statement is here instead of outside the else
2671: # block because we do not want to pause if we have servers
2672: # left to contact.
1.183 matthew 2673: if (scalar (keys(%Server_status))) {
2674: &update_status($r,
1.214 matthew 2675: &mt('waiting on [_1]',join(' ',keys(%Server_status))));
1.183 matthew 2676: }
1.150 matthew 2677: sleep(1);
1.144 matthew 2678: }
1.159 matthew 2679: #
2680: # Loop through the servers we have contacted but do not
2681: # have results from yet, looking for results.
1.228 matthew 2682: foreach my $server (keys(%Server_status)) {
1.150 matthew 2683: last if ($connection->aborted());
1.214 matthew 2684: &update_seconds($r);
1.228 matthew 2685: my $status = $Server_status{$server};
1.144 matthew 2686: if ($status eq 'con_lost') {
2687: delete ($Server_status{$server});
2688: next;
2689: }
1.276 raeburn 2690: $status=~s|/||g;
1.242 albertel 2691: my $datafile=$r->dir_config('lonDaemons').'/tmp/'.$status;
1.144 matthew 2692: if (-e $datafile && ! -e "$datafile.end") {
1.214 matthew 2693: &update_status($r,&mt('Receiving results from [_1]',$server));
1.144 matthew 2694: next;
2695: }
1.150 matthew 2696: last if ($connection->aborted());
1.144 matthew 2697: if (-e "$datafile.end") {
1.214 matthew 2698: &update_status($r,&mt('Reading results from [_1]',$server));
1.144 matthew 2699: if (-z "$datafile") {
2700: delete($Server_status{$server});
2701: next;
2702: }
2703: my $fh;
2704: if (!($fh=Apache::File->new($datafile))) {
1.146 matthew 2705: $r->print("Unable to open search results file for ".
1.145 matthew 2706: "server $server. Omitting from search");
1.150 matthew 2707: delete($Server_status{$server});
2708: next;
1.144 matthew 2709: }
2710: # Read in the whole file.
2711: while (my $result = <$fh>) {
1.150 matthew 2712: last if ($connection->aborted());
1.214 matthew 2713: #
2714: # Records are stored one per line
1.144 matthew 2715: chomp($result);
1.214 matthew 2716: next if (! $result);
2717: #
1.144 matthew 2718: # Parse the result.
1.276 raeburn 2719: my %Fields = &parse_raw_result($result,$server,$tabletype);
1.144 matthew 2720: $Fields{'hostname'} = $server;
1.214 matthew 2721: #
2722: # Skip based on copyright
1.144 matthew 2723: next if (! ©right_check(\%Fields));
1.248 www 2724:
1.276 raeburn 2725: if ($area eq 'portfolio') {
2726: next if (defined($matches{$Fields{'url'}}));
2727: # Skip if inaccessible
2728: next if (!&Apache::lonnet::portfolio_access($Fields{'url'}));
2729: $matches{$Fields{'url'}} = 1;
2730: }
1.214 matthew 2731: #
1.144 matthew 2732: # Store the result in the mysql database
2733: my $result = &Apache::lonmysql::store_row($table,\%Fields);
2734: if (! defined($result)) {
1.146 matthew 2735: $r->print(&Apache::lonmysql::get_error());
1.144 matthew 2736: }
1.214 matthew 2737: #
1.144 matthew 2738: $hitcountsum ++;
1.214 matthew 2739: &update_seconds($r);
1.150 matthew 2740: if ($hitcountsum % 50 == 0) {
2741: &update_count_status($r,$hitcountsum);
2742: }
1.214 matthew 2743: }
1.144 matthew 2744: $fh->close();
2745: # $server is only deleted if the results file has been
2746: # found and (successfully) opened. This may be a bad idea.
2747: delete($Server_status{$server});
2748: }
1.150 matthew 2749: last if ($connection->aborted());
1.148 matthew 2750: &update_count_status($r,$hitcountsum);
1.144 matthew 2751: }
1.150 matthew 2752: last if ($connection->aborted());
1.214 matthew 2753: &update_seconds($r);
1.144 matthew 2754: }
1.313 bisitz 2755: &update_status($r,&mt('Search Complete on Server [_1]',$server));
1.214 matthew 2756: &update_seconds($r);
1.204 matthew 2757: #
1.214 matthew 2758: &Apache::lonmysql::disconnect_from_db(); # This is unneccessary
1.204 matthew 2759: #
1.144 matthew 2760: # We have run out of time or run out of servers to talk to and
1.214 matthew 2761: # results to get, so let the client know the top frame needs to be
2762: # loaded from /adm/searchcat
1.256 albertel 2763: $r->print(&Apache::loncommon::end_page());
1.267 www 2764: # if ($env{'form.catalogmode'} ne 'import') {
1.313 bisitz 2765: $r->print(<<SCRIPT);
2766: <script>
2767: window.location='/adm/searchcat?phase=sort&persistent_db_id=$env{'form.persistent_db_id'}';
2768: </script>
2769: SCRIPT
1.224 matthew 2770: # }
1.144 matthew 2771: return;
2772: }
2773:
2774: ######################################################################
2775: ######################################################################
1.204 matthew 2776:
1.144 matthew 2777: =pod
2778:
1.204 matthew 2779: =item &prev_next_buttons()
2780:
2781: Returns html for the previous and next buttons on the search results page.
1.144 matthew 2782:
2783: =cut
2784:
2785: ######################################################################
2786: ######################################################################
1.146 matthew 2787: sub prev_next_buttons {
1.145 matthew 2788: my ($current_min,$show,$total,$parms) = @_;
2789: return '' if ($show eq 'all'); # No links if you get them all at once.
1.214 matthew 2790: #
1.223 matthew 2791: # Create buttons
1.313 bisitz 2792: return '<p class="LC_nobreak">'
2793: .'<input type="submit" name="prev" value="<"'
2794: .' title="'.&mt('Previous').'" />'
2795: .' '
2796: .'<input type="submit" name="reload" value="'.&mt('Reload').'" />'
2797: .' '
2798: .'<input type="submit" name="next" value=">"'
2799: .' title="'.&mt('Next').'" />'
2800: .'</p>';
1.144 matthew 2801: }
1.204 matthew 2802:
1.144 matthew 2803: ######################################################################
2804: ######################################################################
2805:
2806: =pod
2807:
1.204 matthew 2808: =item &display_results()
2809:
2810: Prints the results out for selection and perusal.
1.144 matthew 2811:
2812: =cut
2813:
2814: ######################################################################
2815: ######################################################################
2816: sub display_results {
1.276 raeburn 2817: my ($r,$importbutton,$closebutton,$diropendb,$area) = @_;
1.150 matthew 2818: my $connection = $r->connection;
2819: $r->print(&search_results_header($importbutton,$closebutton));
1.144 matthew 2820: ##
2821: ## Set viewing function
2822: ##
1.243 albertel 2823: my $viewfunction = $Views{$env{'form.viewselect'}};
1.144 matthew 2824: if (!defined($viewfunction)) {
1.312 bisitz 2825: $r->print('<p class="LC_error">'
2826: .&mt('Internal Error - Bad view selected.')
2827: .'</p>'."\n");
1.144 matthew 2828: $r->rflush();
2829: return;
2830: }
2831: ##
1.158 matthew 2832: ## $checkbox_num is a count of the number of checkboxes output on the
1.267 www 2833: ## page this is used only during catalogmode=import.
1.158 matthew 2834: my $checkbox_num = 0;
2835: ##
1.144 matthew 2836: ## Get the catalog controls setup
2837: ##
1.146 matthew 2838: my $action = "/adm/searchcat?phase=results";
2839: ##
1.267 www 2840: ## Deal with import by opening the import db file.
2841: if ($env{'form.catalogmode'} eq 'import') {
1.146 matthew 2842: if (! tie(%groupsearch_db,'GDBM_File',$diropendb,
1.148 matthew 2843: &GDBM_WRCREAT(),0640)) {
1.312 bisitz 2844: $r->print('<p class="LC_error">'.
2845: &mt('Unable to save import results.').
2846: '</p>'.
2847: '</form>'.
1.256 albertel 2848: &Apache::loncommon::end_page());
1.146 matthew 2849: $r->rflush();
2850: return;
2851: }
1.144 matthew 2852: }
1.145 matthew 2853: ##
2854: ## Prepare the table for querying
1.243 albertel 2855: my $table = $env{'form.table'};
1.151 matthew 2856: return if (! &ensure_db_and_table($r,$table));
1.145 matthew 2857: ##
2858: ## Get the number of results
2859: my $total_results = &Apache::lonmysql::number_of_rows($table);
2860: if (! defined($total_results)) {
1.312 bisitz 2861: $r->print('<p class="LC_error">'.
2862: &mt('A MySQL error has occurred.').
2863: '</p>'.
2864: '</form>'.
1.256 albertel 2865: &Apache::loncommon::end_page());
1.145 matthew 2866: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2867: " of rows in table ".$table);
2868: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2869: return;
2870: }
2871: ##
2872: ## Determine how many results we need to get
1.243 albertel 2873: $env{'form.start'} = 1 if (! exists($env{'form.start'}));
2874: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
2875: if (exists($env{'form.prev'})) {
2876: $env{'form.start'} -= $env{'form.show'};
2877: } elsif (exists($env{'form.next'})) {
2878: $env{'form.start'} += $env{'form.show'};
2879: }
2880: $env{'form.start'} = 1 if ($env{'form.start'}<1);
2881: $env{'form.start'} = $total_results if ($env{'form.start'}>$total_results);
2882: my $min = $env{'form.start'};
1.145 matthew 2883: my $max;
1.243 albertel 2884: if ($env{'form.show'} eq 'all') {
1.145 matthew 2885: $max = $total_results ;
2886: } else {
1.243 albertel 2887: $max = $min + $env{'form.show'} - 1;
1.146 matthew 2888: $max = $total_results if ($max > $total_results);
1.145 matthew 2889: }
2890: ##
1.223 matthew 2891: ## Output form elements
2892: $r->print(&hidden_field('table').
2893: &hidden_field('phase').
2894: &hidden_field('persistent_db_id').
1.276 raeburn 2895: &hidden_field('start').
2896: &hidden_field('area')
1.223 matthew 2897: );
1.232 matthew 2898: #
2899: # Build sorting selector
1.241 matthew 2900: my @fields =
2901: (
2902: {key=>'default' },
2903: {key=>'title' },
2904: {key =>'author' },
2905: {key =>'subject'},
2906: {key =>'url',desc=>'URL'},
2907: {key =>'keywords'},
2908: {key =>'language'},
2909: {key =>'creationdate'},
2910: {key =>'lastrevisiondate'},
2911: {key =>'owner'},
2912: {key =>'copyright'},
2913: {key =>'authorspace'},
2914: {key =>'lowestgradelevel'},
2915: {key =>'highestgradelevel'},
2916: {key =>'standards',desc=>'Standards'},
1.276 raeburn 2917: );
2918: if ($area eq 'portfolio') {
2919: push(@fields,
2920: (
2921: {key => 'scope'},
2922: {key => 'keynum'},
2923: ));
2924: } else {
2925: push(@fields,
2926: (
1.241 matthew 2927: {key =>'count',desc=>'Number of accesses'},
2928: {key =>'stdno',desc=>'Students Attempting'},
2929: {key =>'avetries',desc=>'Average Number of Tries'},
2930: {key =>'difficulty',desc=>'Mean Degree of Difficulty'},
2931: {key =>'disc',desc=>'Mean Degree of Discrimination'},
2932: {key =>'clear',desc=>'Evaluation: Clear'},
2933: {key =>'technical',desc=>'Evaluation: Technically Correct'},
2934: {key =>'correct',desc=>'Evaluation: Material is Correct'},
2935: {key =>'helpful',desc=>'Evaluation: Material is Helpful'},
2936: {key =>'depth',desc=>'Evaluation: Material has Depth'},
1.276 raeburn 2937: ));
2938: }
1.241 matthew 2939: my %fieldnames = &Apache::lonmeta::fieldnames();
2940: my @field_order;
2941: foreach my $field_data (@fields) {
2942: push(@field_order,$field_data->{'key'});
2943: if (! exists($field_data->{'desc'})) {
2944: $field_data->{'desc'}=$fieldnames{$field_data->{'key'}};
2945: } else {
2946: if (! defined($field_data->{'desc'})) {
2947: $field_data->{'desc'} = ucfirst($field_data->{'key'});
2948: }
2949: $field_data->{'desc'} = &mt($field_data->{'desc'});
2950: }
2951: }
2952: my %sort_fields = map {$_->{'key'},$_->{'desc'}} @fields;
2953: $sort_fields{'select_form_order'} = \@field_order;
1.248 www 2954: $env{'form.sortorder'} = 'desc' if (! exists($env{'form.sortorder'}));
1.276 raeburn 2955: if (! exists($env{'form.sortfield'})) {
2956: if ($area eq 'portfolio') {
2957: $env{'form.sortfield'} = 'owner';
2958: } else {
2959: $env{'form.sortfield'} = 'count';
2960: }
2961: }
1.248 www 2962: if (! exists($env{'form.sortorder'})) {
2963: if ($env{'form.sortfield'}=~/^(count|stdno|disc|clear|technical|correct|helpful)$/) {
2964: $env{'form.sortorder'}='desc';
2965: } else {
2966: $env{'form.sortorder'}='asc';
2967: }
2968: }
1.313 bisitz 2969: my $sortform = '<span class="LC_nobreak">'
2970: .&mt('Sort by:').' '
2971: .&Apache::loncommon::select_form($env{'form.sortfield'},
1.232 matthew 2972: 'sortfield',
1.313 bisitz 2973: %sort_fields)
2974: .' '
2975: .&Apache::loncommon::select_form($env{'form.sortorder'},
1.241 matthew 2976: 'sortorder',
2977: (asc =>&mt('Ascending'),
2978: desc=>&mt('Descending')
2979: ))
1.313 bisitz 2980: .'</span>';
1.223 matthew 2981: ##
1.313 bisitz 2982: ## Display links for 'prev' and 'next' pages (if necessary) and Display Options
2983: $r->print('<fieldset>'."\n"
2984: .'<legend>'.&mt('Display Options').'</legend>'."\n"
2985: .$sortform
2986: .' '
2987: .&viewoptions()
2988: .'</fieldset>'
2989: .&prev_next_buttons($min,$env{'form.show'},$total_results)
2990: );
2991:
1.150 matthew 2992: if ($total_results == 0) {
1.256 albertel 2993: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2" />'.
1.313 bisitz 2994: '<p class="LC_info">'.&mt('There are currently no results.').'</p>'.
1.256 albertel 2995: "</form>".
2996: &Apache::loncommon::end_page());
1.150 matthew 2997: return;
2998: } else {
1.312 bisitz 2999: $r->print('<div>'.
1.232 matthew 3000: mt('Results [_1] to [_2] out of [_3]',
3001: $min,$max,$total_results).
1.312 bisitz 3002: "</div>\n");
1.150 matthew 3003: }
1.145 matthew 3004: ##
3005: ## Get results from MySQL table
1.232 matthew 3006: my $sort_command = 'id>='.$min.' AND id<='.$max;
1.241 matthew 3007: my $order;
1.244 albertel 3008: if (exists($env{'form.sortorder'})) {
3009: if ($env{'form.sortorder'} eq 'asc') {
1.241 matthew 3010: $order = 'ASC';
1.244 albertel 3011: } elsif ($env{'form.sortorder'} eq 'desc') {
1.241 matthew 3012: $order = 'DESC';
3013: } else {
3014: $order = '';
3015: }
3016: } else {
3017: $order = '';
3018: }
1.244 albertel 3019: if ($env{'form.sortfield'} ne 'default' &&
3020: exists($sort_fields{$env{'form.sortfield'}})) {
3021: $sort_command = $env{'form.sortfield'}.' IS NOT NULL '.
3022: 'ORDER BY '.$env{'form.sortfield'}.' '.$order.
1.249 www 3023: ' LIMIT '.($min-1).','.($max-$min+1);
1.232 matthew 3024: }
3025: my @Results = &Apache::lonmysql::get_rows($table,$sort_command);
1.145 matthew 3026: ##
3027: ## Loop through the results and output them.
1.276 raeburn 3028: my $tabletype = 'metadata';
3029: if ($area eq 'portfolio') {
3030: $tabletype = 'portfolio_search';
3031: }
1.312 bisitz 3032: $r->print(&Apache::loncommon::start_data_table());
1.144 matthew 3033: foreach my $row (@Results) {
1.150 matthew 3034: if ($connection->aborted()) {
1.162 www 3035: &cleanup();
1.150 matthew 3036: return;
3037: }
1.276 raeburn 3038: my %Fields = %{&parse_row($tabletype,@$row)};
1.312 bisitz 3039: my $output;
1.210 matthew 3040: if (! defined($Fields{'title'}) || $Fields{'title'} eq '') {
3041: $Fields{'title'} = 'Untitled';
3042: }
1.158 matthew 3043: my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'},
3044: $Fields{'id'},$checkbox_num++);
1.144 matthew 3045: # Render the result into html
1.150 matthew 3046: $output.= &$viewfunction($prefix,%Fields);
1.145 matthew 3047: # Print them out as they come in.
1.312 bisitz 3048: $r->print(&Apache::loncommon::start_data_table_row()
3049: .'<td>'
3050: .$output
3051: .'</td>'
3052: .&Apache::loncommon::end_data_table_row()
3053: );
1.144 matthew 3054: $r->rflush();
3055: }
1.312 bisitz 3056: $r->print(&Apache::loncommon::end_data_table());
1.144 matthew 3057: if (@Results < 1) {
1.312 bisitz 3058: $r->print('<p class="LC_info">'
3059: .&mt('There were no results matching your query.')
3060: .'</p>');
1.147 matthew 3061: } else {
1.313 bisitz 3062: $r->print(
3063: &prev_next_buttons($min,$env{'form.show'},$total_results,
1.243 albertel 3064: "table=".$env{'form.table'}.
1.309 bisitz 3065: "&phase=results".
3066: "&persistent_db_id=".
1.243 albertel 3067: $env{'form.persistent_db_id'})
1.313 bisitz 3068: );
1.144 matthew 3069: }
1.256 albertel 3070: $r->print("</form>".&Apache::loncommon::end_page());
1.144 matthew 3071: $r->rflush();
1.150 matthew 3072: untie %groupsearch_db if (tied(%groupsearch_db));
1.144 matthew 3073: return;
3074: }
3075:
3076: ######################################################################
3077: ######################################################################
3078:
3079: =pod
3080:
1.158 matthew 3081: =item &catalogmode_output($title,$url,$fnum,$checkbox_num)
1.145 matthew 3082:
3083: Returns html needed for the various catalog modes. Gets inputs from
1.243 albertel 3084: $env{'form.catalogmode'}. Stores data in %groupsearch_db.
1.145 matthew 3085:
3086: =cut
3087:
3088: ######################################################################
3089: ######################################################################
3090: sub catalogmode_output {
3091: my $output = '';
1.158 matthew 3092: my ($title,$url,$fnum,$checkbox_num) = @_;
1.243 albertel 3093: if ($env{'form.catalogmode'} eq 'interactive') {
1.150 matthew 3094: $title=~ s/\'/\\\'/g;
1.243 albertel 3095: if ($env{'form.catalogmode'} eq 'interactive') {
1.145 matthew 3096: $output.=<<END
1.287 albertel 3097: <font size='-1'><input type="button" name="returnvalues" value="select"
1.313 bisitz 3098: onclick="javascript:select_data('$title','$url')" />
1.145 matthew 3099: </font>
3100: END
3101: }
1.267 www 3102: } elsif ($env{'form.catalogmode'} eq 'import') {
1.145 matthew 3103: $groupsearch_db{"pre_${fnum}_link"}=$url;
3104: $groupsearch_db{"pre_${fnum}_title"}=$title;
3105: $output.=<<END;
3106: <font size='-1'>
1.287 albertel 3107: <input type="checkbox" name="returnvalues" value="select"
1.313 bisitz 3108: onclick="javascript:queue($checkbox_num,$fnum)" />
1.145 matthew 3109: </font>
3110: END
3111: }
3112: return $output;
3113: }
3114: ######################################################################
3115: ######################################################################
3116:
3117: =pod
3118:
1.204 matthew 3119: =item &parse_row()
1.144 matthew 3120:
3121: Parse a row returned from the database.
3122:
3123: =cut
3124:
3125: ######################################################################
3126: ######################################################################
3127: sub parse_row {
1.276 raeburn 3128: my ($tabletype,@Row) = @_;
1.144 matthew 3129: my %Fields;
1.204 matthew 3130: if (! scalar(@Datatypes)) {
1.276 raeburn 3131: &set_up_table_structure($tabletype);
1.204 matthew 3132: }
1.144 matthew 3133: for (my $i=0;$i<=$#Row;$i++) {
1.265 www 3134: $Fields{$Datatypes[$i]->{'name'}}=&unescape($Row[$i]);
1.144 matthew 3135: }
3136: $Fields{'language'} =
1.198 www 3137: &Apache::loncommon::languagedescription($Fields{'language'});
1.144 matthew 3138: $Fields{'copyrighttag'} =
3139: &Apache::loncommon::copyrightdescription($Fields{'copyright'});
3140: $Fields{'mimetag'} =
3141: &Apache::loncommon::filedescription($Fields{'mime'});
3142: return \%Fields;
3143: }
1.126 matthew 3144:
3145: ###########################################################
3146: ###########################################################
3147:
3148: =pod
3149:
3150: =item &parse_raw_result()
3151:
3152: Takes a line from the file of results and parse it. Returns a hash
1.198 www 3153: with keys according to column labels
1.126 matthew 3154:
3155: In addition, the following tags are set by calling the appropriate
1.198 www 3156: lonnet function: 'language', 'copyrighttag', 'mimetag'.
1.126 matthew 3157:
3158: The 'title' field is set to "Untitled" if the title field is blank.
3159:
3160: 'abstract' and 'keywords' are truncated to 200 characters.
3161:
3162: =cut
3163:
3164: ###########################################################
3165: ###########################################################
3166: sub parse_raw_result {
1.276 raeburn 3167: my ($result,$hostname,$tabletype) = @_;
1.204 matthew 3168: # conclude from self to others regarding fields
1.206 matthew 3169: my %Fields=&LONCAPA::lonmetadata::metadata_col_to_hash
1.276 raeburn 3170: ($tabletype,
3171: map {
1.265 www 3172: &unescape($_);
1.276 raeburn 3173: } (split(/\,/,$result)) );
1.126 matthew 3174: return %Fields;
3175: }
3176:
3177: ###########################################################
3178: ###########################################################
3179:
3180: =pod
3181:
3182: =item &handle_custom_fields()
3183:
3184: =cut
3185:
3186: ###########################################################
3187: ###########################################################
3188: sub handle_custom_fields {
3189: my @results = @{shift()};
3190: my $customshow='';
3191: my $extrashow='';
3192: my @customfields;
1.243 albertel 3193: if ($env{'form.customshow'}) {
3194: $customshow=$env{'form.customshow'};
1.126 matthew 3195: $customshow=~s/[^\w\s]//g;
3196: my @fields=map {
3197: "<font color=\"#008000\">$_:</font><!-- $_ -->";
3198: } split(/\s+/,$customshow);
3199: @customfields=split(/\s+/,$customshow);
3200: if ($customshow) {
3201: $extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n";
3202: }
3203: }
3204: my $customdata='';
3205: my %customhash;
3206: foreach my $result (@results) {
3207: if ($result=~/^(custom\=.*)$/) { # grab all custom metadata
3208: my $tmp=$result;
3209: $tmp=~s/^custom\=//;
1.265 www 3210: my ($k,$v)=map {&unescape($_);
1.126 matthew 3211: } split(/\,/,$tmp);
3212: $customhash{$k}=$v;
3213: }
3214: }
3215: return ($extrashow,\@customfields,\%customhash);
1.41 harris41 3216: }
3217:
1.122 matthew 3218: ######################################################################
3219: ######################################################################
3220:
1.125 matthew 3221: =pod
3222:
1.204 matthew 3223: =item &search_results_header()
1.125 matthew 3224:
1.130 matthew 3225: Output the proper html headers and javascript code to deal with different
3226: calling modes.
3227:
1.243 albertel 3228: Takes most inputs directly from %env, except $mode.
1.130 matthew 3229:
3230: =over 4
3231:
3232: =item $mode is either (at this writing) 'Basic' or 'Advanced'
3233:
3234: =back
1.126 matthew 3235:
1.130 matthew 3236: The following environment variables are checked:
1.126 matthew 3237:
3238: =over 4
3239:
3240: =item 'form.catalogmode'
3241:
1.267 www 3242: Checked for 'interactive' and 'import'.
1.126 matthew 3243:
3244: =item 'form.mode'
3245:
3246: Checked for existance & 'edit' mode.
3247:
3248: =item 'form.form'
3249:
1.191 albertel 3250: Contains the name of the form that has the input fields to set
3251:
1.126 matthew 3252: =item 'form.element'
3253:
1.191 albertel 3254: the name of the input field to put the URL into
3255:
3256: =item 'form.titleelement'
3257:
3258: the name of the input field to put the title into
3259:
1.126 matthew 3260: =back
3261:
1.125 matthew 3262: =cut
3263:
3264: ######################################################################
3265: ######################################################################
3266: sub search_results_header {
1.150 matthew 3267: my ($importbutton,$closebutton) = @_;
1.256 albertel 3268:
1.257 albertel 3269: my $js;
1.125 matthew 3270: # output beginning of search page
3271: # conditional output of script functions dependent on the mode in
3272: # which the search was invoked
1.243 albertel 3273: if ($env{'form.catalogmode'} eq 'interactive'){
3274: if (! exists($env{'form.mode'}) || $env{'form.mode'} ne 'edit') {
1.257 albertel 3275: $js.=<<SCRIPT;
1.125 matthew 3276: <script type="text/javascript">
1.313 bisitz 3277: // <![CDATA[
1.125 matthew 3278: function select_data(title,url) {
3279: changeTitle(title);
3280: changeURL(url);
1.150 matthew 3281: parent.close();
1.125 matthew 3282: }
3283: function changeTitle(val) {
1.153 matthew 3284: if (parent.opener.inf.document.forms.resinfo.elements.t) {
3285: parent.opener.inf.document.forms.resinfo.elements.t.value=val;
1.125 matthew 3286: }
3287: }
3288: function changeURL(val) {
1.153 matthew 3289: if (parent.opener.inf.document.forms.resinfo.elements.u) {
3290: parent.opener.inf.document.forms.resinfo.elements.u.value=val;
1.125 matthew 3291: }
3292: }
1.313 bisitz 3293: // ]]>
1.125 matthew 3294: </script>
3295: SCRIPT
1.243 albertel 3296: } elsif ($env{'form.mode'} eq 'edit') {
3297: my $form = $env{'form.form'};
3298: my $element = $env{'form.element'};
3299: my $titleelement = $env{'form.titleelement'};
1.191 albertel 3300: my $changetitle;
3301: if (!$titleelement) {
3302: $changetitle='function changeTitle(val) {}';
3303: } else {
3304: $changetitle=<<END;
3305: function changeTitle(val) {
3306: if (parent.targetwin.document) {
3307: parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val;
3308: } else {
3309: var url = 'forms[\"$form\"].elements[\"$titleelement\"].value';
3310: alert("Unable to transfer data to "+url);
3311: }
3312: }
3313: END
3314: }
3315:
1.257 albertel 3316: $js.=<<SCRIPT;
1.125 matthew 3317: <script type="text/javascript">
1.313 bisitz 3318: // <![CDATA[
1.125 matthew 3319: function select_data(title,url) {
3320: changeURL(url);
1.191 albertel 3321: changeTitle(title);
1.150 matthew 3322: parent.close();
1.125 matthew 3323: }
1.191 albertel 3324: $changetitle
1.125 matthew 3325: function changeURL(val) {
1.150 matthew 3326: if (parent.targetwin.document) {
3327: parent.targetwin.document.forms["$form"].elements["$element"].value=val;
1.125 matthew 3328: } else {
3329: var url = 'forms[\"$form\"].elements[\"$element\"].value';
3330: alert("Unable to transfer data to "+url);
3331: }
3332: }
1.313 bisitz 3333: // ]]>
1.125 matthew 3334: </script>
3335: SCRIPT
3336: }
3337: }
1.288 albertel 3338: my $inhibit_menu = "&".&Apache::loncommon::inhibit_menu_check();
1.267 www 3339: $js.=<<SCRIPT if $env{'form.catalogmode'} eq 'import';
1.125 matthew 3340: <script type="text/javascript">
1.313 bisitz 3341: // <![CDATA[
1.158 matthew 3342: function queue(checkbox_num,val) {
1.185 matthew 3343: if (document.forms.results.returnvalues.length != "undefined" &&
3344: typeof(document.forms.results.returnvalues.length) == "number") {
3345: if (document.forms.results.returnvalues[checkbox_num].checked) {
1.270 www 3346: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3347: } else {
1.270 www 3348: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3349: }
1.150 matthew 3350: } else {
1.185 matthew 3351: if (document.forms.results.returnvalues.checked) {
1.270 www 3352: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3353: } else {
1.270 www 3354: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3355: }
1.150 matthew 3356: }
1.125 matthew 3357: }
3358: function select_group() {
1.150 matthew 3359: parent.window.location=
1.323 ! bisitz 3360: "/adm/groupsort?mode=$env{'form.mode'}&catalogmode=import$inhibit_menu&acts="+
1.270 www 3361: parent.statusframe.document.forms.statusform.elements.acts.value;
1.125 matthew 3362: }
1.313 bisitz 3363: // ]]>
1.125 matthew 3364: </script>
3365: SCRIPT
1.256 albertel 3366:
1.257 albertel 3367: my $start_page = &Apache::loncommon::start_page(undef,$js,
3368: {'only_body' =>1});
1.258 albertel 3369: my $result=<<END;
1.257 albertel 3370: $start_page
1.267 www 3371: <form name="results" method="post" action="/adm/searchcat">
1.150 matthew 3372: $importbutton
1.130 matthew 3373: END
1.125 matthew 3374: return $result;
3375: }
3376:
1.150 matthew 3377: sub results_link {
1.309 bisitz 3378: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3379: "&persistent_db_id=".$env{'form.persistent_db_id'};
3380: my $results_link = $basic_link."&phase=results".
3381: "&pause=1"."&start=1";
1.150 matthew 3382: return $results_link;
3383: }
3384:
1.146 matthew 3385: ######################################################################
3386: ######################################################################
3387: sub print_frames_interface {
3388: my $r = shift;
1.309 bisitz 3389: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3390: "&persistent_db_id=".$env{'form.persistent_db_id'};
3391: my $run_search_link = $basic_link."&phase=run_search";
1.150 matthew 3392: my $results_link = &results_link();
1.260 albertel 3393: my $js = <<JS;
3394: <script type="text/javascript">
1.313 bisitz 3395: // <![CDATA[
1.260 albertel 3396: var targetwin = opener;
3397: var queue = '';
1.313 bisitz 3398: // ]]>
1.260 albertel 3399: </script>
3400: JS
1.262 albertel 3401:
3402: my $start_page =
3403: &Apache::loncommon::start_page('LON-CAPA Digital Library Search Results',
3404: $js,
3405: {'frameset' => 1,
3406: 'add_entries' => {
3407: 'rows' => "150,*",},});
3408: my $end_page =
3409: &Apache::loncommon::end_page({'frameset' => 1});
3410:
1.146 matthew 3411: my $result = <<"ENDFRAMES";
1.262 albertel 3412: $start_page
1.146 matthew 3413: <frame name="statusframe" src="$run_search_link">
3414: <frame name="resultsframe" src="$results_link">
1.262 albertel 3415: $end_page
1.146 matthew 3416: ENDFRAMES
3417:
3418: $r->print($result);
3419: return;
3420: }
3421:
3422: ######################################################################
3423: ######################################################################
1.125 matthew 3424:
1.224 matthew 3425: sub has_stat_data {
3426: my ($values) = @_;
3427: if ( (defined($values->{'count'}) && $values->{'count'} ne '') ||
3428: (defined($values->{'stdno'}) && $values->{'stdno'} ne '') ||
3429: (defined($values->{'disc'}) && $values->{'disc'} ne '') ||
3430: (defined($values->{'avetries'}) && $values->{'avetries'} ne '') ||
3431: (defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) {
3432: return 1;
3433: }
3434: return 0;
3435: }
3436:
3437: sub statfields {
3438: return ('count','stdno','disc','avetries','difficulty');
3439: }
3440:
3441: sub has_eval_data {
3442: my ($values) = @_;
3443: if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') ||
3444: (defined($values->{'technical'}) && $values->{'technical'} ne '') ||
3445: (defined($values->{'correct'}) && $values->{'correct'} ne '') ||
3446: (defined($values->{'helpful'}) && $values->{'helpful'} ne '') ||
3447: (defined($values->{'depth'}) && $values->{'depth'} ne '')) {
3448: return 1;
3449: }
3450: return 0;
3451: }
3452:
3453: sub evalfields {
3454: return ('clear','technical','correct','helpful','depth');
3455: }
3456:
3457: ######################################################################
3458: ######################################################################
3459:
1.122 matthew 3460: =pod
3461:
3462: =item Metadata Viewing Functions
3463:
3464: Output is a HTML-ified string.
1.204 matthew 3465:
1.122 matthew 3466: Input arguments are title, author, subject, url, keywords, version,
3467: notes, short abstract, mime, language, creation date,
1.126 matthew 3468: last revision date, owner, copyright, hostname, and
1.122 matthew 3469: extra custom metadata to show.
3470:
3471: =over 4
3472:
3473: =item &detailed_citation_view()
3474:
3475: =cut
3476:
3477: ######################################################################
3478: ######################################################################
1.50 harris41 3479: sub detailed_citation_view {
1.150 matthew 3480: my ($prefix,%values) = @_;
1.218 matthew 3481: my $result;
1.247 www 3482: my $jumpurl=$values{'url'};
1.275 albertel 3483: $jumpurl=~s|^/ext/|http://|;
1.218 matthew 3484: $result .= '<b>'.$prefix.
1.312 bisitz 3485: '<img src="'.&Apache::loncommon::icon($values{'url'}).'" alt="" />'.' '.
1.288 albertel 3486: '<a href="'.$jumpurl.'?inhibitmenu=yes" '.
1.274 www 3487: 'target="preview">'.$values{'title'}."</a></b>\n";
1.218 matthew 3488: $result .= "<p>\n";
3489: $result .= '<b>'.$values{'author'}.'</b>,'.
3490: ' <i>'.$values{'owner'}.'</i><br />';
3491: foreach my $field
3492: (
1.223 matthew 3493: { name=>'url',
3494: translate => '<b>URL:</b> [_1]',
3495: special => 'url link',},
1.218 matthew 3496: { name=>'subject',
3497: translate => '<b>Subject:</b> [_1]',},
3498: { name=>'keywords',
3499: translate => '<b>Keywords:</b> [_1]',},
3500: { name=>'notes',
3501: translate => '<b>Notes:</b> [_1]',},
3502: { name=>'mimetag',
3503: translate => '<b>MIME Type:</b> [_1]',},
3504: { name=>'standards',
3505: translate => '<b>Standards:</b>[_1]',},
3506: { name=>'copyrighttag',
3507: translate => '<b>Copyright/Distribution:</b> [_1]',},
1.223 matthew 3508: { name=>'count',
1.225 matthew 3509: format => "%d",
1.223 matthew 3510: translate => '<b>Access Count:</b> [_1]',},
1.218 matthew 3511: { name=>'stdno',
1.225 matthew 3512: format => "%d",
1.218 matthew 3513: translate => '<b>Number of Students:</b> [_1]',},
3514: { name=>'avetries',
1.225 matthew 3515: format => "%.2f",
1.218 matthew 3516: translate => '<b>Average Tries:</b> [_1]',},
3517: { name=>'disc',
1.225 matthew 3518: format => "%.2f",
1.218 matthew 3519: translate => '<b>Degree of Discrimination:</b> [_1]',},
3520: { name=>'difficulty',
1.225 matthew 3521: format => "%.2f",
1.218 matthew 3522: translate => '<b>Degree of Difficulty:</b> [_1]',},
3523: { name=>'clear',
1.225 matthew 3524: format => "%.2f",
1.218 matthew 3525: translate => '<b>Clear:</b> [_1]',},
3526: { name=>'depth',
1.225 matthew 3527: format => "%.2f",
1.218 matthew 3528: translate => '<b>Depth:</b> [_1]',},
3529: { name=>'helpful',
1.225 matthew 3530: format => "%.2f",
1.218 matthew 3531: translate => '<b>Helpful:</b> [_1]',},
3532: { name=>'correct',
1.225 matthew 3533: format => "%.2f",
1.224 matthew 3534: translate => '<b>Correct:</b> [_1]',},
1.218 matthew 3535: { name=>'technical',
1.225 matthew 3536: format => "%.2f",
1.218 matthew 3537: translate => '<b>Technical:</b> [_1]',},
1.225 matthew 3538: { name=>'comefrom_list',
3539: type => 'list',
3540: translate => 'Resources that lead up to this resource in maps',},
3541: { name=>'goto_list',
3542: type => 'list',
3543: translate => 'Resources that follow this resource in maps',},
1.226 matthew 3544: { name=>'sequsage_list',
1.225 matthew 3545: type => 'list',
3546: translate => 'Resources using or importing resource',},
1.218 matthew 3547: ) {
1.225 matthew 3548: next if (! exists($values{$field->{'name'}}) ||
3549: $values{$field->{'name'}} eq '');
3550: if (exists($field->{'type'}) && $field->{'type'} eq 'list') {
1.267 www 3551: $result .= '<b>'.&mt($field->{'translate'}).'</b>';
1.225 matthew 3552: foreach my $item (split(',',$values{$field->{'name'}})){
1.287 albertel 3553: $item = &Apache::lonnet::clutter($item);
1.319 bisitz 3554: $result .= '<br />'.&display_url($item,1).'<br />';
1.225 matthew 3555: }
3556: } elsif (exists($field->{'format'}) && $field->{'format'} ne ''){
3557: $result.= &mt($field->{'translate'},
3558: sprintf($field->{'format'},
1.230 matthew 3559: $values{$field->{'name'}}))."<br />\n";
1.225 matthew 3560: } else {
1.223 matthew 3561: if ($field->{'special'} eq 'url link') {
1.319 bisitz 3562: $result .= '<br />'.&display_url($jumpurl,1).'<br />';
1.223 matthew 3563: } else {
3564: $result.= &mt($field->{'translate'},
3565: $values{$field->{'name'}});
3566: }
3567: $result .= "<br />\n";
1.225 matthew 3568: }
1.223 matthew 3569: }
3570: $result .= "</p>";
3571: if (exists($values{'extrashow'}) && $values{'extrashow'} ne '') {
3572: $result .= '<p>'.$values{'extrashow'}.'</p>';
3573: }
3574: if (exists($values{'shortabstract'}) && $values{'shortabstract'} ne '') {
3575: $result .= '<p>'.$values{'shortabstract'}.'</p>';
1.218 matthew 3576: }
1.50 harris41 3577: return $result;
1.222 matthew 3578: }
3579:
1.255 www 3580: sub detailed_citation_preview {
3581: my ($prefix,%values)=@_;
1.312 bisitz 3582: return &detailed_citation_view($prefix,%values).
1.255 www 3583: '</td><td>'.
1.312 bisitz 3584: &Apache::lonindexer::showpreview($values{'url'});
1.255 www 3585: }
3586:
3587:
1.222 matthew 3588: ######################################################################
3589: ######################################################################
3590:
1.122 matthew 3591: =pod
3592:
3593: =item &summary_view()
3594:
3595: =cut
3596: ######################################################################
3597: ######################################################################
1.50 harris41 3598: sub summary_view {
1.150 matthew 3599: my ($prefix,%values) = @_;
1.192 albertel 3600: my $icon=&Apache::loncommon::icon($values{'url'});
1.312 bisitz 3601: my $result=qq{$prefix<img src="$icon" alt="" />};
1.244 albertel 3602: if (exists($env{'form.sortfield'}) &&
3603: $env{'form.sortfield'} !~ /^(default|
1.241 matthew 3604: author|
3605: url|
3606: title|
3607: owner|
3608: lastrevisiondate|
3609: copyright)$/x) {
1.244 albertel 3610: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3611: if (! defined($tmp)) { $tmp = 'undefined'; }
3612: $result .= ' '.$tmp.' ';
3613: }
1.247 www 3614: my $jumpurl=$values{'url'};
1.287 albertel 3615: $jumpurl=~s|^/ext/|http://|;
1.319 bisitz 3616: my $link = '<br />'.&display_url($jumpurl,1).'<br />';
1.287 albertel 3617:
1.241 matthew 3618: $result.=<<END;
1.317 bisitz 3619: <a href="$jumpurl?inhibitmenu=yes"
1.312 bisitz 3620: target="preview">$values{'title'}</a><br />
3621: $link<br />
1.241 matthew 3622: $values{'author'}, $values{'owner'} -- $values{'lastrevisiondate'}<br />
1.126 matthew 3623: $values{'copyrighttag'}<br />
3624: $values{'extrashow'}
1.50 harris41 3625: END
3626: return $result;
3627: }
3628:
1.255 www 3629: sub summary_preview {
3630: my ($prefix,%values)=@_;
1.312 bisitz 3631: return &summary_view($prefix,%values).
1.255 www 3632: '</td><td>'.
1.312 bisitz 3633: &Apache::lonindexer::showpreview($values{'url'});
1.255 www 3634: }
3635:
1.122 matthew 3636: ######################################################################
3637: ######################################################################
3638:
3639: =pod
3640:
1.150 matthew 3641: =item &compact_view()
3642:
3643: =cut
3644:
3645: ######################################################################
3646: ######################################################################
3647: sub compact_view {
3648: my ($prefix,%values) = @_;
1.247 www 3649: my $jumpurl=$values{'url'};
1.287 albertel 3650: $jumpurl=~s|^/ext/|http://|;
3651:
1.319 bisitz 3652: my $link = &display_url($jumpurl,1);
1.287 albertel 3653:
1.223 matthew 3654: my $result =
1.306 bisitz 3655: $prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).'" alt="" />';
1.244 albertel 3656: if (exists($env{'form.sortfield'}) &&
3657: $env{'form.sortfield'} !~ /^(default|author|url|title)$/) {
3658: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3659: if (! defined($tmp)) { $tmp = 'undefined'; }
3660: $result .= ' '.$tmp.' ';
3661: }
1.287 albertel 3662: $jumpurl = &HTML::Entities::encode($jumpurl,'<>&"');
3663: $result.=' <span class="LC_nobreak">'.
1.288 albertel 3664: '<a href="'.$jumpurl.'?inhibitmenu=yes" target="preview">'.
1.287 albertel 3665: &HTML::Entities::encode($values{'title'},'<>&"').'</a></span> '.
1.312 bisitz 3666: $link.' <b>'.$values{'author'}.'</b> ('.$values{'domain'}.')';
1.150 matthew 3667: return $result;
3668: }
3669:
1.287 albertel 3670: sub display_url {
1.319 bisitz 3671: my ($url,$skiplast) = @_;
1.287 albertel 3672: my $link;
3673: if ($url=~m|^/ext/|) {
3674: $url=~s|^/ext/|http://|;
3675: $link='<span class="LC_filename">'.$url.'</span>';
3676: } elsif ($url=~m{^(http://|/uploaded/)}) {
3677: $link='<span class="LC_filename">'.$url.'</span>';
3678: } else {
1.319 bisitz 3679: $link=&Apache::lonhtmlcommon::crumbs(
3680: $url,
3681: 'preview',
3682: '',
3683: (($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),
3684: $skiplast).' ';
1.287 albertel 3685: }
3686: return $link;
3687: }
1.150 matthew 3688:
3689: ######################################################################
3690: ######################################################################
3691:
3692: =pod
3693:
1.122 matthew 3694: =item &fielded_format_view()
3695:
3696: =cut
3697:
3698: ######################################################################
3699: ######################################################################
1.50 harris41 3700: sub fielded_format_view {
1.150 matthew 3701: my ($prefix,%values) = @_;
1.192 albertel 3702: my $icon=&Apache::loncommon::icon($values{'url'});
1.222 matthew 3703: my %Translated = &Apache::lonmeta::fieldnames();
1.247 www 3704: my $jumpurl=$values{'url'};
1.275 albertel 3705: $jumpurl=~s|^/ext/|http://|;
1.247 www 3706:
1.50 harris41 3707: my $result=<<END;
1.312 bisitz 3708: $prefix <img src="$icon" alt="" />
1.222 matthew 3709: <dl>
3710: <dt>URL:</dt>
1.288 albertel 3711: <dd><a href="$jumpurl?inhibitmenu=yes"
1.274 www 3712: target='preview'>$values{'url'}</a></dd>
1.50 harris41 3713: END
1.239 matthew 3714: foreach my $field ('title','author','domain','subject','keywords','notes',
1.222 matthew 3715: 'mimetag','language','creationdate','lastrevisiondate',
3716: 'owner','copyrighttag','hostname','abstract') {
3717: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3718: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3719: }
3720: if (&has_stat_data(\%values)) {
3721: foreach my $field (&statfields()) {
3722: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3723: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3724: }
3725: }
3726: if (&has_eval_data(\%values)) {
3727: foreach my $field (&evalfields()) {
3728: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3729: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3730: }
3731: }
3732: $result .= "</dl>\n";
3733: $result .= $values{'extrashow'};
1.50 harris41 3734: return $result;
3735: }
3736:
1.122 matthew 3737: ######################################################################
3738: ######################################################################
3739:
3740: =pod
3741:
3742: =item &xml_sgml_view()
3743:
3744: =back
3745:
3746: =cut
3747:
3748: ######################################################################
3749: ######################################################################
1.50 harris41 3750: sub xml_sgml_view {
1.150 matthew 3751: my ($prefix,%values) = @_;
1.222 matthew 3752: my $xml = '<LonCapaResource>'."\n";
3753: # The usual suspects
1.239 matthew 3754: foreach my $field ('url','title','author','subject','keywords','notes','domain') {
1.222 matthew 3755: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3756: }
3757: #
3758: $xml .= "<mimeInfo>\n";
3759: foreach my $field ('mime','mimetag') {
3760: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3761: }
3762: $xml .= "</mimeInfo>\n";
3763: #
3764: $xml .= "<languageInfo>\n";
3765: foreach my $field ('language','languagetag') {
3766: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3767: }
3768: $xml .= "</languageInfo>\n";
3769: #
3770: foreach my $field ('creationdate','lastrevisiondate','owner') {
3771: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3772: }
3773: #
3774: $xml .= "<copyrightInfo>\n";
3775: foreach my $field ('copyright','copyrighttag') {
3776: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3777: }
3778: $xml .= "</copyrightInfo>\n";
3779: $xml .= qq{<repositoryLocation>$values{'hostname'}</repositoryLocation>}.
3780: "\n";
3781: $xml .= qq{<shortabstract>$values{'shortabstract'}</shortabstract>}."\n";
3782: #
3783: if (&has_stat_data(\%values)){
3784: $xml .= "<problemstatistics>\n";
3785: foreach my $field (&statfields()) {
3786: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3787: }
3788: $xml .= "</problemstatistics>\n";
3789: }
3790: #
3791: if (&has_eval_data(\%values)) {
3792: $xml .= "<evaluation>\n";
3793: foreach my $field (&evalfields) {
3794: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3795: }
3796: $xml .= "</evaluation>\n";
3797: }
3798: #
3799: $xml .= "</LonCapaResource>\n";
1.212 matthew 3800: $xml = &HTML::Entities::encode($xml,'<>&');
1.50 harris41 3801: my $result=<<END;
1.150 matthew 3802: $prefix
1.56 harris41 3803: <pre>
1.212 matthew 3804: $xml
1.56 harris41 3805: </pre>
1.126 matthew 3806: $values{'extrashow'}
1.50 harris41 3807: END
3808: return $result;
1.60 harris41 3809: }
3810:
1.122 matthew 3811: ######################################################################
3812: ######################################################################
3813:
3814: =pod
3815:
3816: =item &filled() see if field is filled.
3817:
3818: =cut
3819:
3820: ######################################################################
3821: ######################################################################
1.98 harris41 3822: sub filled {
3823: my ($field)=@_;
3824: if ($field=~/\S/ && $field ne 'any') {
1.204 matthew 3825: return 1;
3826: } else {
3827: return 0;
1.61 harris41 3828: }
1.60 harris41 3829: }
3830:
1.122 matthew 3831: ######################################################################
3832: ######################################################################
3833:
3834: =pod
3835:
1.228 matthew 3836: =item &output_unparsed_phrase_error()
3837:
3838: =cut
3839:
3840: ######################################################################
3841: ######################################################################
3842: sub output_unparsed_phrase_error {
3843: my ($r,$closebutton,$parms,$hidden_fields,$field)=@_;
3844: my $errorstring;
3845: if ($field eq 'basicexp') {
1.312 bisitz 3846: $errorstring = &mt('Unable to understand the search phrase [_1]. Please modify your search.'
3847: ,'<i>'.$env{'form.basicexp'}.'</i>');
1.228 matthew 3848: } else {
1.312 bisitz 3849: $errorstring = &mt('Unable to understand the search phrase [_1]: [_2]'
3850: ,'<i>'.$field.'</i>'
3851: ,$env{'form.'.$field});
1.228 matthew 3852: }
3853: my $heading = &mt('Unparsed Field');
3854: my $revise = &mt('Revise search request');
3855: # make query information persistent to allow for subsequent revision
1.256 albertel 3856: my $start_page = &Apache::loncommon::start_page('Search');
3857: my $end_page = &Apache::loncommon::end_page();
1.228 matthew 3858: $r->print(<<ENDPAGE);
1.256 albertel 3859: $start_page
1.228 matthew 3860: <form method="post" action="/adm/searchcat">
3861: $hidden_fields
3862: $closebutton
3863: <hr />
3864: <h2>$heading</h2>
1.312 bisitz 3865: <p class="LC_warning">
1.228 matthew 3866: $errorstring
3867: </p>
3868: <p>
1.309 bisitz 3869: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.228 matthew 3870: </p>
1.256 albertel 3871: $end_page
1.228 matthew 3872: ENDPAGE
3873: }
3874:
3875: ######################################################################
3876: ######################################################################
3877:
3878: =pod
3879:
1.122 matthew 3880: =item &output_blank_field_error()
3881:
1.151 matthew 3882: Output a complete page that indicates the user has not filled in enough
3883: information to do a search.
3884:
3885: Inputs: $r (Apache request handle), $closebutton, $parms.
3886:
3887: Returns: nothing
3888:
3889: $parms is extra information to include in the 'Revise search request' link.
3890:
1.122 matthew 3891: =cut
3892:
3893: ######################################################################
3894: ######################################################################
1.98 harris41 3895: sub output_blank_field_error {
1.196 matthew 3896: my ($r,$closebutton,$parms,$hidden_fields)=@_;
1.312 bisitz 3897: 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 3898: my $revise = &mt('Revise Search Request');
1.315 bisitz 3899: my $heading = &mt('Unactionable Search Query');
1.256 albertel 3900: my $start_page = &Apache::loncommon::start_page('Search');
3901: my $end_page = &Apache::loncommon::end_page();
1.315 bisitz 3902: if ($closebutton) {
3903: $closebutton = '<p>'.$closebutton.'</p><hr />';
3904: } else {
3905: &Apache::lonhtmlcommon::add_breadcrumb
3906: ({href=>'',
3907: text=>$heading,});
3908: $start_page .= &Apache::lonhtmlcommon::breadcrumbs();
3909: }
3910:
1.228 matthew 3911: $r->print(<<ENDPAGE);
1.256 albertel 3912: $start_page
1.98 harris41 3913: <form method="post" action="/adm/searchcat">
1.145 matthew 3914: $hidden_fields
1.98 harris41 3915: $closebutton
1.315 bisitz 3916: </form>
1.228 matthew 3917: <h2>$heading</h2>
1.312 bisitz 3918: <p class="LC_warning">
1.228 matthew 3919: $errormsg
3920: </p>
3921: <p>
1.315 bisitz 3922: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.98 harris41 3923: </p>
1.256 albertel 3924: $end_page
1.228 matthew 3925: ENDPAGE
3926: return;
1.98 harris41 3927: }
3928:
1.122 matthew 3929: ######################################################################
3930: ######################################################################
3931:
3932: =pod
3933:
3934: =item &output_date_error()
3935:
3936: Output a full html page with an error message.
3937:
1.145 matthew 3938: Inputs:
3939:
3940: $r, the request pointer.
3941: $message, the error message for the user.
3942: $closebutton, the specialized close button needed for groupsearch.
3943:
1.122 matthew 3944: =cut
3945:
3946: ######################################################################
3947: ######################################################################
1.60 harris41 3948: sub output_date_error {
1.196 matthew 3949: my ($r,$message,$closebutton,$hidden_fields)=@_;
1.60 harris41 3950: # make query information persistent to allow for subsequent revision
1.256 albertel 3951: my $start_page = &Apache::loncommon::start_page('Search');
3952: my $end_page = &Apache::loncommon::end_page();
1.312 bisitz 3953: my $heading = &mt('Error');
1.122 matthew 3954: $r->print(<<RESULTS);
1.256 albertel 3955: $start_page
1.60 harris41 3956: <form method="post" action="/adm/searchcat">
1.145 matthew 3957: $hidden_fields
1.60 harris41 3958: <input type='button' value='Revise search request'
1.313 bisitz 3959: onclick='this.form.submit();' />
1.60 harris41 3960: $closebutton
1.312 bisitz 3961: </form>
1.98 harris41 3962: <hr />
1.312 bisitz 3963: <h3>$heading</h3>
3964: <p class="LC_error">
1.60 harris41 3965: $message
3966: </p>
1.256 albertel 3967: $end_page
1.60 harris41 3968: RESULTS
1.101 harris41 3969: }
3970:
1.122 matthew 3971: ######################################################################
3972: ######################################################################
3973:
3974: =pod
3975:
3976: =item &start_fresh_session()
3977:
1.142 matthew 3978: Cleans the global %groupsearch_db by removing all fields which begin with
1.122 matthew 3979: 'pre_' or 'store'.
3980:
3981: =cut
3982:
3983: ######################################################################
3984: ######################################################################
1.101 harris41 3985: sub start_fresh_session {
1.142 matthew 3986: delete $groupsearch_db{'mode_catalog'};
3987: foreach (keys %groupsearch_db) {
1.101 harris41 3988: if ($_ =~ /^pre_/) {
1.142 matthew 3989: delete $groupsearch_db{$_};
1.101 harris41 3990: }
3991: if ($_ =~ /^store/) {
1.142 matthew 3992: delete $groupsearch_db{$_};
1.101 harris41 3993: }
1.109 harris41 3994: }
1.3 harris41 3995: }
1.1 www 3996:
3997: 1;
1.162 www 3998:
3999: sub cleanup {
1.163 www 4000: if (tied(%groupsearch_db)) {
4001: unless (untie(%groupsearch_db)) {
4002: &Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db');
4003: }
4004: }
1.167 www 4005: &untiehash();
1.162 www 4006: &Apache::lonmysql::disconnect_from_db();
1.252 albertel 4007: return OK;
1.162 www 4008: }
1.98 harris41 4009:
1.1 www 4010: __END__
1.105 harris41 4011:
1.121 matthew 4012: =pod
1.105 harris41 4013:
1.121 matthew 4014: =back
1.105 harris41 4015:
4016: =cut
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