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Diff for /loncom/interface/lonsearchcat.pm between versions 1.153 and 1.213

version 1.153, 2002/08/16 13:52:51 version 1.213, 2004/04/21 15:48:34
Line 48  described at http://www.lon-capa.org. Line 48  described at http://www.lon-capa.org.
 lonsearchcat presents the user with an interface to search the LON-CAPA  lonsearchcat presents the user with an interface to search the LON-CAPA
 digital library.  lonsearchcat also initiates the execution of a search  digital library.  lonsearchcat also initiates the execution of a search
 by sending the search parameters to LON-CAPA servers.  The progress of   by sending the search parameters to LON-CAPA servers.  The progress of 
 search (on a server basis) is displayed to the user in a seperate window.  search (on a server basis) is displayed to the user in a separate window.
   
 =head1 Internals  =head1 Internals
   
Line 59  search (on a server basis) is displayed Line 59  search (on a server basis) is displayed
 ###############################################################################  ###############################################################################
 ###############################################################################  ###############################################################################
   
 ###############################################################################  
 ##                                                                           ##  
 ## ORGANIZATION OF THIS PERL MODULE                                          ##  
 ##                                                                           ##  
 ## 1. Modules used by this module                                            ##  
 ## 2. Variables used throughout the module                                   ##  
 ## 3. handler subroutine called via Apache and mod_perl                      ##  
 ## 4. Other subroutines                                                      ##  
 ##                                                                           ##  
 ###############################################################################  
   
 package Apache::lonsearchcat;  package Apache::lonsearchcat;
   
 # ------------------------------------------------- modules used by this module  
 use strict;  use strict;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common :http);
 use Apache::lonnet();  use Apache::lonnet();
 use Apache::File();  use Apache::File();
 use CGI qw(:standard);  use CGI qw(:standard);
 use Text::Query;  use Text::Query;
 use DBI;  
 use GDBM_File;  use GDBM_File;
 use Apache::loncommon();  use Apache::loncommon();
 use Apache::lonmysql();  use Apache::lonmysql();
   use Apache::lonmeta;
 # ---------------------------------------- variables used throughout the module  use Apache::lonhtmlcommon;
   use Apache::lonlocal;
   use LONCAPA::lonmetadata();
   use HTML::Entities();
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   ##
 =pod   ## Global variables
   ##
 =item Global variables  
   
 =over 4  
   
 =item $importbutton  
   
 button to take the select results and go to group sorting  
   
 =item %groupsearch_db     
   
 Database hash used to save values for the groupsearch RAT interface.  
   
 =item $diropendb   
   
 The full path to the (temporary) search database file.  This is set and  
 used in &handler() and is also used in &output_results().  
   
 =item %Views  
   
 Hash which associates an output view description with the function  
 that produces it.  Adding a new view type should be as easy as  
 adding a line to the definition of this hash and making sure the function  
 takes the proper parameters.  
   
 =back   
   
 =cut  
   
 ######################################################################  
 ######################################################################  
   
 # -- dynamically rendered interface components  
 my $importbutton; # button to take the selected results and go to group sorting  
   
 # -- miscellaneous variables  
 my %groupsearch_db;     # database hash  
 my $diropendb = "";    # db file  
 #             View Description           Function Pointer  
 my %Views = ("Detailed Citation View" => \&detailed_citation_view,  
              "Summary View"           => \&summary_view,  
              "Fielded Format"         => \&fielded_format_view,  
              "XML/SGML"               => \&xml_sgml_view,  
              "Compact View"           => \&compact_view);  
 my %persistent_db;  
 my $hidden_fields;  
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   my %groupsearch_db;  # Database hash used to save values for the 
 =pod                        # groupsearch RAT interface.
   my %persistent_db;   # gdbm hash which holds data which is supposed to
 =item &handler() - main handler invoked by httpd child                       # persist across calls to lonsearchcat.pm
   
 =item Variables  # The different view modes and associated functions
   
 =over 4  my %Views = ("detailed" => \&detailed_citation_view,
        "summary"  => \&summary_view,
 =item $hidden       "fielded"  => \&fielded_format_view,
        "xml"      => \&xml_sgml_view,
 holds 'hidden' html forms       "compact"  => \&compact_view);
   
 =item $scrout  
   
 string that holds portions of the screen output  
   
 =back   
   
 =cut  
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
   #    &set_defaults();
       #
       # set form defaults
     #      #
       my $hidden_fields;# Hold all the hidden fields used to keep track
                         # of the search system state
       my $importbutton; # button to take the selected results and go to group 
                         # sorting
       my $diropendb;    # The full path to the (temporary) search database file.
                         # This is set and used in &handler() and is also used in 
                         # &output_results().
       my $bodytag;  # LON-CAPA standard body tag, gotten from 
                     # &Apache::lonnet::bodytag. 
                     # No title, no table, just a <body> tag.
   
       my $loaderror=&Apache::lonnet::overloaderror($r);
       if ($loaderror) { return $loaderror; }
   
     my $closebutton;  # button that closes the search window       my $closebutton;  # button that closes the search window 
                       # This button is different for the RAT compared to                        # This button is different for the RAT compared to
                       # normal invocation.                        # normal invocation.
     #      #
     $r->content_type('text/html');      &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;      $r->send_http_header;
     return OK if $r->header_only;      return OK if $r->header_only;
       ##
       ## Prevent caching of the search interface window.  Hopefully this means
       ## we will get the launch=1 passed in a little more.
       &Apache::loncommon::no_cache($r);
     ##       ## 
     ## Pick up form fields passed in the links.      ## Pick up form fields passed in the links.
     ##      ##
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
              ['catalogmode','launch','acts','mode','form','element','pause',               ['catalogmode','launch','acts','mode','form','element','pause',
               'phase','persistent_db_id','table','start','show']);                'phase','persistent_db_id','table','start','show',
                 'cleargroupsort','titleelement']);
     ##      ##
     ## The following is a trick - we wait a few seconds if asked to so      ## The following is a trick - we wait a few seconds if asked to so
     ##     the daemon running the search can get ahead of the daemon      ##     the daemon running the search can get ahead of the daemon
Line 184  sub handler { Line 143  sub handler {
     ##     this once, so the pause indicator is deleted      ##     this once, so the pause indicator is deleted
     ##      ##
     if (exists($ENV{'form.pause'})) {      if (exists($ENV{'form.pause'})) {
         sleep(3);          sleep(1);
         delete($ENV{'form.pause'});          delete($ENV{'form.pause'});
     }      }
     ##      ##
     ## Initialize global variables      ## Initialize global variables
     ##      ##
     my $domain  = $r->dir_config('lonDefDomain');      my $domain  = $r->dir_config('lonDefDomain');
     $diropendb= "/home/httpd/perl/tmp/".&Apache::lonnet::escape($domain).      $diropendb= "/home/httpd/perl/tmp/".
             "\_".&Apache::lonnet::escape($ENV{'user.name'})."_searchcat.db";          "$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db";
     #      #
     # set the name of the persistent database      # set the name of the persistent database
     #          $ENV{'form.persistent_db_id'} can only have digits in it.      #          $ENV{'form.persistent_db_id'} can only have digits in it.
Line 201  sub handler { Line 160  sub handler {
         ($ENV{'form.launch'} eq '1')) {          ($ENV{'form.launch'} eq '1')) {
         $ENV{'form.persistent_db_id'} = time;          $ENV{'form.persistent_db_id'} = time;
     }      }
       $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
     my $persistent_db_file = "/home/httpd/perl/tmp/".      my $persistent_db_file = "/home/httpd/perl/tmp/".
         &Apache::lonnet::escape($domain).          &Apache::lonnet::escape($domain).
             '_'.&Apache::lonnet::escape($ENV{'user.name'}).              '_'.&Apache::lonnet::escape($ENV{'user.name'}).
                 '_'.$ENV{'form.persistent_db_id'}.'_persistent_search.db';                  '_'.$ENV{'form.persistent_db_id'}.'_persistent_search.db';
     ##      ##
       &Apache::lonhtmlcommon::clear_breadcrumbs();
       if (exists($ENV{'request.course.id'}) && $ENV{'request.course.id'} ne '') {
           &Apache::lonhtmlcommon::add_breadcrumb
                ({href=>'/adm/searchcat?'.
                      'catalogmode='.$ENV{'form.catalogmode'}.
                      '&launch='.$ENV{'form.launch'}.
                      '&mode='.$ENV{'form.mode'},
                 text=>"Course and Catalog Search",
                 bug=>'Searching',});
       } else {
           &Apache::lonhtmlcommon::add_breadcrumb
                ({href=>'/adm/searchcat?'.
                      'catalogmode='.$ENV{'form.catalogmode'}.
                      '&launch='.$ENV{'form.launch'}.
                      '&mode='.$ENV{'form.mode'},
                 text=>"Catalog Search",
                 bug=>'Searching',});
       }
       #
     if (! &get_persistent_form_data($persistent_db_file)) {      if (! &get_persistent_form_data($persistent_db_file)) {
         if ($ENV{'form.phase'} =~ /(run_search|results)/) {          if ($ENV{'form.phase'} =~ /(run_search|results)/) {
             &Apache::lonnet::logthis("lonsearchcat:Unable to recover data ".              &Apache::lonnet::logthis("lonsearchcat:Unable to recover data ".
Line 213  sub handler { Line 192  sub handler {
             $r->print(<<END);              $r->print(<<END);
 <html>  <html>
 <head><title>LON-CAPA Search Error</title></head>  <head><title>LON-CAPA Search Error</title></head>
 <body>  $bodytag
 We were unable to retrieve data describing your search.  This is a serious  We were unable to retrieve data describing your search.  This is a serious
 error and has been logged.  Please alert your LON-CAPA administrator.  error and has been logged.  Please alert your LON-CAPA administrator.
 </body>  </body>
Line 226  END Line 205  END
     ## Clear out old values from groupsearch database      ## Clear out old values from groupsearch database
     ##      ##
     untie %groupsearch_db if (tied(%groupsearch_db));      untie %groupsearch_db if (tied(%groupsearch_db));
     if ($ENV{'form.launch'} eq '1' &&       if (($ENV{'form.cleargroupsort'} eq '1') || 
         ($ENV{'form.catalogmode'} eq 'groupsearch') &&           (($ENV{'form.launch'} eq '1') && 
         ($ENV{'form.phase'} eq 'results')) {           ($ENV{'form.catalogmode'} eq 'groupsearch'))) {
  if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {   if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
     &start_fresh_session();      &start_fresh_session();
     untie %groupsearch_db;      untie %groupsearch_db;
               delete($ENV{'form.cleargroupsort'});
  } else {   } else {
     $r->print('<html><head></head><body>Unable to tie hash to db '.              # This is a stupid error to give to the user.  
       'file</body></html>');              # It really tells them nothing.
       $r->print('<html><head></head>'.$bodytag.
                         'Unable to tie hash to db file</body></html>');
     return OK;      return OK;
  }   }
     }      }
Line 255  END Line 237  END
         $hidden_fields .= '<input type="hidden" name="element" value="'.          $hidden_fields .= '<input type="hidden" name="element" value="'.
                 $ENV{'form.element'}.'" />'."\n";                  $ENV{'form.element'}.'" />'."\n";
     }      }
       if (exists($ENV{'form.titleelement'})) {
           $hidden_fields .= '<input type="hidden" name="titleelement" value="'.
                   $ENV{'form.titleelement'}.'" />'."\n";
       }
     if (exists($ENV{'form.mode'})) {      if (exists($ENV{'form.mode'})) {
         $hidden_fields .= '<input type="hidden" name="mode" value="'.          $hidden_fields .= '<input type="hidden" name="mode" value="'.
                 $ENV{'form.mode'}.'" />'."\n";                  $ENV{'form.mode'}.'" />'."\n";
Line 299  END Line 285  END
     }      }
     $ENV{'form.phase'} = 'disp_basic' if (! exists($ENV{'form.phase'}));      $ENV{'form.phase'} = 'disp_basic' if (! exists($ENV{'form.phase'}));
     $ENV{'form.show'} = 20 if (! exists($ENV{'form.show'}));      $ENV{'form.show'} = 20 if (! exists($ENV{'form.show'}));
       #
       $ENV{'form.searchmode'} = 'basic';
       if ($ENV{'form.phase'} eq 'adv_search' ||
           $ENV{'form.phase'} eq 'disp_adv') {
           $ENV{'form.searchmode'} = 'advanced';
       } elsif ($ENV{'form.phase'} eq 'course_search') {
           $ENV{'form.searchmode'} = 'course_search';
       }
       #
       if ($ENV{'form.searchmode'} eq 'advanced') {
           &Apache::lonhtmlcommon::add_breadcrumb
               ({href=>'/adm/searchcat?phase=disp_adv&'.
                     'catalogmode='.$ENV{'form.catalogmode'}.
                     '&launch='.$ENV{'form.launch'}.
                     '&mode='.$ENV{'form.mode'},
                     text=>"Advanced Search",
                     bug=>'Searching',});
       } elsif ($ENV{'form.searchmode'} eq 'course search') {
           &Apache::lonhtmlcommon::add_breadcrumb
               ({href=>'/adm/searchcat?phase=disp_adv&'.
                     'catalogmode='.$ENV{'form.catalogmode'}.
                     '&launch='.$ENV{'form.launch'}.
                     '&mode='.$ENV{'form.mode'},
                     text=>"Course Search",
                     bug=>'Searching',});
       }
     ##      ##
     ## Switch on the phase      ## Switch on the phase
     ##      ##
     if ($ENV{'form.phase'} eq 'disp_basic') {      if ($ENV{'form.phase'} eq 'disp_basic') {
         &print_basic_search_form($r,$closebutton);          &print_basic_search_form($r,$closebutton,$hidden_fields);
     } elsif ($ENV{'form.phase'} eq 'disp_adv') {      } elsif ($ENV{'form.phase'} eq 'disp_adv') {
         &print_advanced_search_form($r,$closebutton);          &print_advanced_search_form($r,$closebutton,$hidden_fields);
     } elsif ($ENV{'form.phase'} eq 'results') {      } elsif ($ENV{'form.phase'} eq 'results') {
         &display_results($r,$importbutton,$closebutton);          &display_results($r,$importbutton,$closebutton,$diropendb);
     } elsif ($ENV{'form.phase'} =~ /^(sort|run_search)$/) {      } elsif ($ENV{'form.phase'} =~ /^(sort|run_search)$/) {
         my ($query,$customquery,$customshow,$libraries,$pretty_string) =          my ($query,$customquery,$customshow,$libraries,$pretty_string) =
             &get_persistent_data($persistent_db_file,              &get_persistent_data($persistent_db_file,
Line 319  END Line 331  END
             &run_search($r,$query,$customquery,$customshow,              &run_search($r,$query,$customquery,$customshow,
                         $libraries,$pretty_string);                          $libraries,$pretty_string);
         }          }
       } elsif ($ENV{'form.phase'} eq 'course_search') {
           &course_search($r);
     } elsif(($ENV{'form.phase'} eq 'basic_search') ||      } elsif(($ENV{'form.phase'} eq 'basic_search') ||
             ($ENV{'form.phase'} eq 'adv_search')) {              ($ENV{'form.phase'} eq 'adv_search')) {
         $ENV{'form.searchmode'} = 'basic';  
         if ($ENV{'form.phase'} eq 'adv_search') {  
             $ENV{'form.searchmode'} = 'advanced';  
         }  
         # Set up table          # Set up table
         if (! defined(&create_results_table())) {          if (! defined(&create_results_table())) {
       my $errorstring=&Apache::lonmysql::get_error();
               &Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
                                        'needed table.  lonmysql error:'.
                                        $errorstring);
             $r->print(<<END);              $r->print(<<END);
 <html><head><title>Search Error</title></head>  <html><head><title>Search Error</title></head>
 <body>  $bodytag
 Unable to create table in which to store search results.    Unable to create table in which to store search results.  
 The search has been aborted.  The search has been aborted.
 </body>  </body>
Line 341  END Line 355  END
         if (! &make_form_data_persistent($r,$persistent_db_file)) {          if (! &make_form_data_persistent($r,$persistent_db_file)) {
             $r->print(<<END);              $r->print(<<END);
 <html><head><title>Search Error</title></head>  <html><head><title>Search Error</title></head>
 <body>  $bodytag
 Unable to properly store search information.  The search has been aborted.  Unable to properly store search information.  The search has been aborted.
 </body>  </body>
 </html>  </html>
Line 354  END Line 368  END
             (undef,undef,undef,undef);              (undef,undef,undef,undef);
         my $pretty_string;          my $pretty_string;
         if ($ENV{'form.phase'} eq 'basic_search') {          if ($ENV{'form.phase'} eq 'basic_search') {
             ($query,$pretty_string) = &parse_basic_search($r,$closebutton);              ($query,$pretty_string,$libraries) = 
                   &parse_basic_search($r,$closebutton,$hidden_fields);
         } else {                      # Advanced search          } else {                      # Advanced search
             ($query,$customquery,$customshow,$libraries,$pretty_string)               ($query,$customquery,$customshow,$libraries,$pretty_string) 
                 = &parse_advanced_search($r,$closebutton);                  = &parse_advanced_search($r,$closebutton,$hidden_fields);
             return OK if (! defined($query));              return OK if (! defined($query));
         }          }
         &make_persistent({ query => $query,          &make_persistent({ query => $query,
Line 376  END Line 391  END
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   ##
   ##   Course Search
   ##
   ######################################################################
   ######################################################################
   {   # Scope the course search to avoid global variables
   #
   # Variables For course search
   my %alreadyseen;
   my %hash;
   my $totalfound;
   
   sub course_search {
       my $r=shift;
       my $bodytag=&Apache::loncommon::bodytag('Course Search').
    &Apache::loncommon::help_open_bug('Searching');
       my $pretty_search_string = '<b>'.$ENV{'form.courseexp'}.'</b>';
       my $search_string = $ENV{'form.courseexp'};
       my @New_Words;
       if ($ENV{'form.crsrelated'}) {
           ($search_string,@New_Words) = &related_version($ENV{'form.courseexp'});
           if (@New_Words) {
               $pretty_search_string .= ' '.&mt("with related words").": <b>@New_Words</b>.";
           } else {
               $pretty_search_string .= ' '.&mt('with no related words').".";
           }
       }
       my $fulltext=$ENV{'form.crsfulltext'};
       my @allwords=($search_string,@New_Words);
       $totalfound=0;
       $r->print('<html><head><title>LON-CAPA Course Search</title></head>'.
         $bodytag.'<hr /><center><font size="+2" face="arial">'.$pretty_search_string.'</font></center><hr />');
       $r->rflush();
   # ======================================================= Go through the course
       undef %alreadyseen;
       %alreadyseen=();
       my $c=$r->connection;
       if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.".db",
               &GDBM_READER(),0640)) {
           foreach (keys %hash) {
               if ($c->aborted()) { last; }
               if (($_=~/^src\_(.+)$/) && (!$alreadyseen{$hash{$_}})) {
                   &checkonthis($r,$hash{$_},0,$hash{'title_'.$1},$fulltext,
                                @allwords);
               }
           }
           untie(%hash);
       }
       unless ($totalfound) {
    $r->print('<p>'.&mt('No resources found').'.</p>');
       }
   # =================================================== Done going through course
       $r->print('</body></html>');
   }
   
 =pod   # =============================== This pulls up a resource and its dependencies
   
 =item &print_basic_search_form()   
   
 Returns a scalar which holds html for the basic search form.  sub checkonthis {
       my ($r,$url,$level,$title,$fulltext,@allwords)=@_;
       $alreadyseen{$url}=1;
       $r->rflush();
       my $result=&Apache::lonnet::metadata($url,'title').' '.
                  &Apache::lonnet::metadata($url,'subject').' '.
                  &Apache::lonnet::metadata($url,'abstract').' '.
                  &Apache::lonnet::metadata($url,'keywords');
       if (($url) && ($fulltext)) {
    $result.=&Apache::lonnet::ssi_body($url);
       }
       $result=~s/\s+/ /gs;
       my $applies=0;
       foreach (@allwords) {
           if ($_=~/\w/) {
      if ($result=~/$_/si) {
         $applies++;
              }
          }
       }
   # Does this resource apply?
       if ($applies) {
          $r->print('<br />');
          for (my $i=0;$i<=$level*5;$i++) {
              $r->print('&nbsp;');
          }
          $r->print('<a href="'.$url.'" target="cat">'.
    ($title?$title:$url).'</a><br />');
          $totalfound++;
       } elsif ($fulltext) {
          $r->print(' .');
       }
       $r->rflush();
   # Check also the dependencies of this one
       my $dependencies=
                   &Apache::lonnet::metadata($url,'dependencies');
       foreach (split(/\,/,$dependencies)) {
          if (($_=~/^\/res\//) && (!$alreadyseen{$_})) {
             &checkonthis($r,$_,$level+1,'',$fulltext,@allwords);
          }
       }
   }
   
 =cut  sub untiehash {
       if (tied(%hash)) {
           untie(%hash);
       }
   }
   
 ######################################################################  } # End of course search scoping
 ######################################################################  
   
 sub print_basic_search_form{  sub search_html_header {
     my ($r,$closebutton) = @_;      my $Str = <<ENDHEADER;
     my $scrout=<<"ENDDOCUMENT";  
 <html>  <html>
 <head>  <head>
 <title>The LearningOnline Network with CAPA</title>  <title>The LearningOnline Network with CAPA</title>
Line 402  sub print_basic_search_form{ Line 512  sub print_basic_search_form{
     }      }
 </script>  </script>
 </head>  </head>
 <body bgcolor="#FFFFFF">  ENDHEADER
 <img align='right' src='/adm/lonIcons/lonlogos.gif' />      return $Str;
 <h1>Search Catalog</h1>  }
 <form method="post" action="/adm/searchcat">  
 <input type="hidden" name="phase" value="basic_search" />  ######################################################################
   ######################################################################
   
   =pod 
   
   =item &print_basic_search_form() 
   
   Prints the form for the basic search.  Sorry the name is so cryptic.
   
   =cut
   
   ######################################################################
   ######################################################################
   sub print_basic_search_form {
       my ($r,$closebutton,$hidden_fields) = @_;
       my $bodytag=&Apache::loncommon::bodytag('Search').
           &Apache::lonhtmlcommon::breadcrumbs(undef,'Searching','Finding_Resources',
                                               undef,undef,! $ENV{'form.launch'});
       my $scrout = &search_html_header().$bodytag;
       if (&Apache::lonnet::allowed('bre',$ENV{'request.role.domain'})) {
           # Define interface components
           my $userelatedwords=
               &mt('[_1] use related words',
                   &Apache::lonhtmlcommon::checkbox
                   ('related',$ENV{'form.related'}));
           my $onlysearchdomain=
               &mt('[_1] only search domain [_2]',
                   &Apache::lonhtmlcommon::checkbox
                   ('domains',$ENV{'form.domains'}),
                   $r->dir_config('lonDefDomain'));
           my $adv_search_link = 
               '<a href="/adm/searchcat?'.
               'phase=disp_adv&'.
               'catalogmode='.$ENV{'form.catalogmode'}.
               '&launch='.$ENV{'form.launch'}.
               '&mode='.$ENV{'form.mode'}.
               '">'.&mt('Advanced Search').'</a>';
           #
           $scrout.='<form name="loncapa_search" method="post" '.
               'action="/adm/searchcat">'.
               '<input type="hidden" name="phase" value="basic_search" />'.
               $hidden_fields;
           #
           $scrout .= '<center>'.$/;
           if ($ENV{'request.course.id'}) {
               $scrout .= '<h1>'.&mt('LON-CAPA Catalog Search').'</h1>';
           } else {
               # No need to tell them they are searching
               $scrout.= ('<br />'x2);
           }
           $scrout.='<table>'.
               '<tr><td align="center" valign="top">'.
               &Apache::lonhtmlcommon::textbox('basicexp',
                                               $ENV{'form.basicexp'},50).'<br />'.
               '<font size="-1">'.&searchhelp().'</font>'.'</td>'.
               '<td><font size="-1">'.
               '<nobr>'.('&nbsp;'x3).$adv_search_link.'</nobr>'.'<br />'.
               '<nobr>'.('&nbsp;'x1).$userelatedwords.'</nobr>'.'<br />'.
               '<nobr>'.('&nbsp;'x1).$onlysearchdomain.'</nobr>'.'<br />'.
               '</font></td>'.
               '</tr>'.$/;
           #
   #        $scrout .= '<tr><td align="center">'.
   #            '<font size="-1">'.
   #            $userelatedwords.('&nbsp;'x3).
   #            $onlysearchdomain.('&nbsp;'x2).$adv_search_link.
   #            '</font>'.
   #            '</td></tr>'.$/;
           $scrout .= '<tr><td align="center" colspan="2">'.
               '<font size="-1">'.
               '<input type="submit" name="basicsubmit" '.
               'value="'.&mt('Search').'" />'.
               ('&nbsp;'x2).$closebutton.('&nbsp;'x2).&viewoptions().
               '</font>'.
               '</td></tr>'.$/;
           $scrout .= '</table>'.$/.'</center>'.'</form>';
       }
       if ($ENV{'request.course.id'}) {
    my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
                                              'header' => 'Course Search',
    'note' => 'Enter terms or phrases, then press "Search" below',
    'use' => 'use related words',
    'full' =>'fulltext search (time consuming)'
      );
           $scrout.=(<<ENDCOURSESEARCH);
   <form name="loncapa_search" method="post" action="/adm/searchcat">
   <center>
   <hr />
   <h1>$lt{'header'}</h1>    
   <input type="hidden" name="phase" value="course_search" />
 $hidden_fields  $hidden_fields
 <h3>Basic Search</h3>  
 <p>  <p>
 Enter terms or phrases separated by AND, OR, or NOT   $lt{'note'}.
 then press SEARCH below.  
 </p>  </p>
 <p>  <p>
 <table>  <table>
 <tr><td>  <tr><td>
 ENDDOCUMENT  ENDCOURSESEARCH
     $scrout.='&nbsp;'.&simpletextfield('basicexp',$ENV{'form.basicexp'},40).          $scrout.='&nbsp;'.
         '&nbsp;';              &Apache::lonhtmlcommon::textbox('courseexp',
     my $checkbox = &simplecheckbox('related',$ENV{'form.related'});                                    $ENV{'form.courseexp'},40);
     $scrout.=<<END;          my $crscheckbox = 
 </td><td><a href="/adm/searchcat?phase=disp_adv">Advanced Search</a></td></tr>              &Apache::lonhtmlcommon::checkbox('crsfulltext',
 <tr><td>$checkbox use related words</td><td></td></tr>                                     $ENV{'form.crsfulltext'});
 </table>          my $relcheckbox = 
 </p>              &Apache::lonhtmlcommon::checkbox('crsrelated',
 <p>     $ENV{'form.crsrelated'});
 &nbsp;<input type="submit" name="basicsubmit" value='SEARCH' />&nbsp;          $scrout.=(<<ENDENDCOURSE);
 $closebutton  </td></tr>
 END  <tr><td>$relcheckbox $lt{'use'}</td><td></td></tr>
     $scrout.=&selectbox(undef,'viewselect',  <tr><td>$crscheckbox $lt{'full'}</td><td></td></tr>
  $ENV{'form.viewselect'},  </table><p>
  undef,undef,undef,  &nbsp;<input type="submit" name="coursesubmit" value='$lt{'srch'}' />
  sort(keys(%Views)));  
     $scrout.=&selectbox(undef,'show',  
  $ENV{'form.show'},  
  undef,undef,undef,  
  (10,20,50,100));  
     $scrout.=<<ENDDOCUMENT;  
 per page.  
 </p>  </p>
   </center>
 </form>  </form>
   ENDENDCOURSE
       }
       $scrout.=(<<ENDDOCUMENT);
 </body>  </body>
 </html>  </html>
 ENDDOCUMENT  ENDDOCUMENT
Line 454  ENDDOCUMENT Line 648  ENDDOCUMENT
   
 =item &advanced_search_form()   =item &advanced_search_form() 
   
 Returns a scalar which holds html for the advanced search form.  Prints the advanced search form.
   
 =cut  =cut
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 sub print_advanced_search_form{  sub print_advanced_search_form{
     my ($r,$closebutton) = @_;      my ($r,$closebutton,$hidden_fields) = @_;
       my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
          'reset' => 'Reset',
          'help' => 'Help');
     my $advanced_buttons = <<"END";      my $advanced_buttons = <<"END";
 <p>  <p>
 <input type="submit" name="advancedsubmit" value='SEARCH' />  <input type="submit" name="advancedsubmit" value='$lt{"srch"}' />
 <input type="reset" name="reset" value='RESET' />  <input type="reset" name="reset" value='$lt{"reset"}' />
 $closebutton  $closebutton
 <input type="button" value="HELP" onClick="openhelp()" />  <input type="button" value="$lt{'help'}" onClick="openhelp()" />
 </p>  
 END  END
     if (!defined($ENV{'form.viewselect'})) {      my $bodytag=&Apache::loncommon::bodytag('Advanced Catalog Search').
         $ENV{'form.viewselect'} ="Detailed Citation View";          &Apache::lonhtmlcommon::breadcrumbs(undef,'Searching',
     }                                              'Finding_Resources',
     my $scrout=<<"ENDHEADER";                                              undef,undef,
 <html>                                              ! $ENV{'form.launch'});
 <head>      my $searchhelp=&searchhelp();
 <title>The LearningOnline Network with CAPA</title>      my $scrout=&search_html_header();
 <script type="text/javascript">      $scrout .= <<"ENDHEADER";
     function openhelp(val) {  $bodytag
  openhelpwin=open('/adm/help/searchcat.html','helpscreen',  <form method="post" action="/adm/searchcat" name="advsearch">
      'scrollbars=1,width=600,height=300');  
  openhelpwin.focus();  
     }  
 </script>  
 </head>  
 <body bgcolor="#FFFFFF">  
 <img align='right' src='/adm/lonIcons/lonlogos.gif' />  
 <h1>Advanced Catalog Search</h1>  
 <hr />  
 Enter terms or phrases separated by search operators   
 such as AND, OR, or NOT.<br />  
 <form method="post" action="/adm/searchcat">  
 $advanced_buttons  $advanced_buttons
 $hidden_fields  
 <input type="hidden" name="phase" value="adv_search" />  
 <table>  
 <tr><td><font color="#800000" face="helvetica"><b>VIEW:</b></font></td>  
 <td>  
 ENDHEADER  ENDHEADER
     $scrout.=&selectbox(undef,'viewselect',      $scrout.=('&nbsp;'x2).&viewoptions().'</p>'.$hidden_fields. 
  $ENV{'form.viewselect'},          '<input type="hidden" name="phase" value="adv_search" />';
  undef,undef,undef,      my %fields=&Apache::lonmeta::fieldnames();
  sort(keys(%Views)));      #
     $scrout.='&nbsp;';      $scrout.= '<p>'.$searchhelp.'</p>'.
     $scrout.=&selectbox(undef,'show',          "<table>\n";
  $ENV{'form.show'},      my %related_word_search = 
  undef,undef,undef,          ('title'=>1,
  (10,20,50,100));           'author'=>0,
     $scrout.='&nbsp;'.           'owner'=>0,
         '<font color="#800000" face="helvetica">Per Page</font>';           'authorspace'=>0,
     $scrout.="</td><td>Related<br />Words</td></tr>\n";           'modifyinguser'=>0,
     $scrout.=&searchphrasefield_with_related('title',   'title'   ,           'keywords'=>1,
                                              $ENV{'form.title'});           'notes'=>1,
     $scrout.=&searchphrasefield('author',  'author'  ,$ENV{'form.author'});           'abstract'=>1,
     $scrout.=&searchphrasefield_with_related('subject', 'subject' ,           'standards'=>1,
                                              $ENV{'form.subject'});           'mime'=>1,
     $scrout.=&searchphrasefield_with_related('keywords','keywords',           );
                                              $ENV{'form.keywords'});      #
     $scrout.=&searchphrasefield('URL',     'url'     ,$ENV{'form.url'});      foreach my $field ('title','author','owner','authorspace','modifyinguser',
     $scrout.=&searchphrasefield_with_related('notes',   'notes'   ,       'keywords','notes','abstract','standards','mime') {
                                              $ENV{'form.notes'});   $scrout.='<tr><td align="right">'.&titlefield($fields{$field}).'</td><td>'.
     $scrout.=&searchphrasefield_with_related('abstract','abstract',      &Apache::lonmeta::prettyinput($field,
                                              $ENV{'form.abstract'});                                            $ENV{'form.'.$field},
     # Hack - an empty table row.                                            $field,
     $scrout.="<tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>\n";                                            'advsearch',
     $scrout.=&searchphrasefield('file<br />extension','mime',    $related_word_search{$field},
                         $ENV{'form.mime'});                                            '</td><td align="left">',
     $scrout.="<tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>\n";                                            $ENV{'form.'.$field.'_related'},
     $scrout.=&searchphrasefield('publisher<br />owner','owner',                                            50);
  $ENV{'form.owner'});          if ($related_word_search{$field}) {
     $scrout.="</table>\n";              $scrout .= 'related words';
     $ENV{'form.category'}='any' unless length($ENV{'form.category'});          } else {
     $scrout.=&selectbox('File Category','category',              $scrout .= '</td><td>&nbsp;';
  $ENV{'form.category'},          }
  'any','Any category',          $scrout .= '</td></tr>'.$/;
  undef,  
  (&Apache::loncommon::filecategories()));  
     $ENV{'form.language'}='any' unless length($ENV{'form.language'});  
     #----------------------------------------------------------------  
     # Allow restriction to multiple domains.  
     #   I make the crazy assumption that there will never be a domain 'any'.  
     #  
     $ENV{'form.domains'} = 'any' if (! exists($ENV{'form.domains'}));  
     my @allowed_domains = (ref($ENV{'form.domains'}) ? @{$ENV{'form.domains'}}   
                            :  ($ENV{'form.domains'}) );  
     my %domain_hash = ();  
     foreach (@allowed_domains) {  
         $domain_hash{$_}++;  
     }      }
     my @domains =&Apache::loncommon::get_domains();      foreach my $field ('lowestgradelevel','highestgradelevel') {
     # adjust the size of the select box   $scrout.='<tr>'.
     my $size = 4;              '<td align="right">'.&titlefield($fields{$field}).'</td>'.
     my $size = (scalar @domains < ($size - 1) ? scalar @domains + 1 : $size);              '<td colspan="2">'.
     $scrout.="\n".'<font color="#800000" face="helvetica"><b>'.      &Apache::lonmeta::prettyinput($field,
         'DOMAINS</b></font><br />'.                                            $ENV{'form.'.$field},
             '<select name="domains" size="'.$size.'" multiple>'."\n".                                            $field,
                 '<option name="any" value="any" '.                                            'advsearch',
                     ($domain_hash{'any'}? 'selected ' :'').    0).
                         '>all domains</option>'."\n";                                            '</td></tr>'.$/;
     foreach my $dom (sort @domains) {      }
         $scrout.="<option name=\"$dom\" ".      $scrout.='<tr><td align="right">'.
             ($domain_hash{$dom} ? 'selected ' :'').">$dom</option>\n";   &titlefield(&mt('MIME Type Category')).'</td><td colspan="2">'. 
     }      &Apache::loncommon::filecategoryselect('category',
     $scrout.="</select>\n";     $ENV{'form.category'}).
     #----------------------------------------------------------------      '</td></tr>'.$/;
     $scrout.=&selectbox('Limit by language','language',      $scrout.='<tr><td align="right" valign="top">'.
  $ENV{'form.language'},'any','Any Language',   &titlefield(&mt('Domains')).'</td><td colspan="2">'. 
  \&{Apache::loncommon::languagedescription},      &Apache::loncommon::domain_select('domains',
  (&Apache::loncommon::languageids),     $ENV{'form.domains'},1).
  );      '</td></tr>'.$/;
 # ------------------------------------------------ Compute date selection boxes      $scrout .= "</table>\n<br />\n<table>\n";
     $scrout.=<<CREATIONDATESTART;      my %dates=&Apache::lonlocal::texthash
 <p>          ('creationdatestart'     => 'Creation Date After',
 <font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b>           'creationdateend'       => 'Creation Date Before',
 </font>           'lastrevisiondatestart' => 'Last Revision Date After',
 <br />           'lastrevisiondateend'   => 'Last Revision Date Before');
 between:      foreach my $field (sort keys %dates) {
 CREATIONDATESTART   $scrout.='<tr>'.
     $scrout.=&dateboxes('creationdatestart',1,1,1976,              '<td align="right">'.&titlefield($dates{$field}).'</td><td>'. 
  $ENV{'form.creationdatestart_month'},      &Apache::lonhtmlcommon::date_setter('advsearch',$field,0,'',1).
  $ENV{'form.creationdatestart_day'},      '</td></tr>'.$/;
  $ENV{'form.creationdatestart_year'},      }
  );      $scrout.="</table>\n";
     $scrout.="and:\n";  
     $scrout.=&dateboxes('creationdateend',12,31,2051,  
  $ENV{'form.creationdateend_month'},  
  $ENV{'form.creationdateend_day'},  
  $ENV{'form.creationdateend_year'},  
  );  
     $scrout.="</p>";  
     $scrout.=<<LASTREVISIONDATESTART;  
 <p>  
 <font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE:  
 </b></font>  
 <br />between:  
 LASTREVISIONDATESTART  
     $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976,  
  $ENV{'form.lastrevisiondatestart_month'},  
  $ENV{'form.lastrevisiondatestart_day'},  
  $ENV{'form.lastrevisiondatestart_year'},  
  );  
     $scrout.=<<LASTREVISIONDATEEND;  
 and:  
 LASTREVISIONDATEEND  
     $scrout.=&dateboxes('lastrevisiondateend',12,31,2051,  
  $ENV{'form.lastrevisiondateend_month'},  
  $ENV{'form.lastrevisiondateend_day'},  
  $ENV{'form.lastrevisiondateend_year'},  
  );  
     $scrout.='</p>';  
     $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'});  
     $scrout.=&selectbox('Limit by copyright/distribution','copyright',  
  $ENV{'form.copyright'},  
  'any','Any copyright/distribution',  
  \&{Apache::loncommon::copyrightdescription},  
  (&Apache::loncommon::copyrightids),  
  );  
 # ------------------------------------------- Compute customized metadata field  
 #    $scrout.=<<CUSTOMMETADATA;  
 #<p>  
 #<font color="#800000" face="helvetica"><b>LIMIT BY SPECIAL METADATA FIELDS:</b>  
 #</font>  
 #For resource-specific metadata, enter in an expression in the form of   
 #<i>key</i>=<i>value</i> separated by operators such as AND, OR or NOT.<br />  
 #<b>Example:</b> grandmother=75 OR grandfather=85  
 #<br />  
 #CUSTOMMETADATA  
 #    $scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'});  
 #    $scrout.=<<CUSTOMSHOW;  
 #<p>  
 #<font color="#800000" face="helvetica"><b>SHOW SPECIAL METADATA FIELDS:</b>  
 #</font>  
 #Enter in a space-separated list of special metadata fields to show  
 #in a fielded listing for each record result.  
 #<br />  
 #CUSTOMSHOW  
 #    $scrout.=&simpletextfield('customshow',$ENV{'form.customshow'});  
     $scrout.=<<ENDDOCUMENT;      $scrout.=<<ENDDOCUMENT;
 $advanced_buttons  $advanced_buttons
 </form>  </form>
Line 653  ENDDOCUMENT Line 764  ENDDOCUMENT
   
 =pod   =pod 
   
 =item &get_persistent_form_data  =item &titlefield()
   
   Inputs: title text
   
   Outputs: titletext with font wrapper
   
   =cut
   
   ######################################################################
   ######################################################################
   sub titlefield {
       my $title=shift;
       return $title;
   }
   
   ######################################################################
   ######################################################################
   
   =pod 
   
   =item viewoptiontext()
   
   Inputs: codename for view option
   
   Outputs: displayed text
   
   =cut
   
   ######################################################################
   ######################################################################
   sub viewoptiontext {
       my $code=shift;
       my %desc=&Apache::lonlocal::texthash
           ('detailed' => "Detailed Citation View",
            'xml' => 'XML/SGML',
            'compact' => 'Compact View',
            'fielded' => 'Fielded Format',
            'summary' => 'Summary View');
       return $desc{$code};
   }
   
   ######################################################################
   ######################################################################
   
   =pod 
   
   =item viewoptions()
   
   Inputs: none
   
   Outputs: text for box with view options
   
   =cut
   
   ######################################################################
   ######################################################################
   sub viewoptions {
       my $scrout="\n".'<nobr>';
       if (! defined($ENV{'form.viewselect'})) { 
           $ENV{'form.viewselect'}='detailed'; 
       }
       $scrout.=&Apache::lonmeta::selectbox('viewselect',
    $ENV{'form.viewselect'},
    \&viewoptiontext,
    sort(keys(%Views)));
       $scrout.= '&nbsp;&nbsp;';
       $scrout.=&Apache::lonmeta::selectbox('show',
    $ENV{'form.show'},
    undef,
    (10,20,50,100,1000,10000));
       $scrout .= ('&nbsp;'x2).&mt('Records per Page').'</nobr>'.$/;
       return $scrout;
   }
   
   ######################################################################
   ######################################################################
   
   =pod 
   
   =item searchhelp()
   
   Inputs: none
   
   Outputs: return little blurb on how to enter searches
   
   =cut
   
   ######################################################################
   ######################################################################
   sub searchhelp {
       return &mt('Enter terms or phrases separated by AND, OR, or NOT');
   }
   
   ######################################################################
   ######################################################################
   
   =pod 
   
   =item &get_persistent_form_data()
   
 Inputs: filename of database  Inputs: filename of database
   
Line 676  sub get_persistent_form_data { Line 885  sub get_persistent_form_data {
                            &GDBM_READER(),0640));                             &GDBM_READER(),0640));
     #      #
     # These make sure we do not get array references printed out as 'values'.      # These make sure we do not get array references printed out as 'values'.
     my %arrays_allowed = ('form.category'=>1,'form.domains'=>1);      my %arrays_allowed = ('form.domains'=>1);
     #      #
     # Loop through the keys, looking for 'form.'      # Loop through the keys, looking for 'form.'
     foreach my $name (keys(%persistent_db)) {      foreach my $name (keys(%persistent_db)) {
         next if ($name !~ /^form./);          next if ($name !~ /^form./);
           # Kludgification begins!
           if ($name eq 'form.domains' && 
               $ENV{'form.searchmode'} eq 'basic' &&
               $ENV{'form.phase'} ne 'disp_basic') {
               next;
           }
           # End kludge (hopefully)
         next if (exists($ENV{$name}));          next if (exists($ENV{$name}));
         my @values = map {           my @values = map { 
             &Apache::lonnet::unescape($_);              &Apache::lonnet::unescape($_);
Line 695  sub get_persistent_form_data { Line 911  sub get_persistent_form_data {
     untie (%persistent_db);      untie (%persistent_db);
     return 1;      return 1;
 }  }
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 =pod   =pod 
   
 =item &get_persistent_data  =item &get_persistent_data()
   
 Inputs: filename of database, ref to array of values to recover.  Inputs: filename of database, ref to array of values to recover.
   
Line 751  Inputs: Hash of values to save, filename Line 968  Inputs: Hash of values to save, filename
   
 Store variables away to the %persistent_db.  Store variables away to the %persistent_db.
 Values will be escaped.  Values that are array pointers will have their  Values will be escaped.  Values that are array pointers will have their
 elements escaped and concatenated in a comma seperated string.    elements escaped and concatenated in a comma separated string.  
   
 =cut  =cut
   
Line 783  Inputs: filename of persistent database. Line 1000  Inputs: filename of persistent database.
   
 Store most form variables away to the %persistent_db.  Store most form variables away to the %persistent_db.
 Values will be escaped.  Values that are array pointers will have their  Values will be escaped.  Values that are array pointers will have their
 elements escaped and concatenated in a comma seperated string.    elements escaped and concatenated in a comma separated string.  
   
 =cut  =cut
   
Line 801  sub make_form_data_persistent { Line 1018  sub make_form_data_persistent {
 }  }
   
 ######################################################################  ######################################################################
 #                HTML form building functions                        #    
 ######################################################################  
   
 =pod   
   
 =item HTML form building functions  
   
 =over 4  
   
 =cut  
   
 ###############################################  
 ###############################################  
   
 =pod  
   
 =item &simpletextfield()   
   
 Inputs: $name,$value,$size  
   
 Returns a text input field with the given name, value, and size.    
 If size is not specified, a value of 20 is used.  
   
 =cut  
   
 ###############################################  
 ###############################################  
   
 sub simpletextfield {  
     my ($name,$value,$size)=@_;  
     $size = 20 if (! defined($size));  
     return '<input type="text" name="'.$name.  
         '" size="'.$size.'" value="'.$value.'" />';  
 }  
   
 ###############################################  
 ###############################################  
   
 =pod  
   
 =item &simplecheckbox()  
   
 Inputs: $name,$value  
   
 Returns a simple check box with the given $name.  
 If $value eq 'on' the box is checked.  
   
 =cut  
   
 ###############################################  
 ###############################################  
   
 sub simplecheckbox {  
     my ($name,$value)=@_;  
     my $checked='';  
     $checked="checked" if $value eq 'on';  
     return '<input type="checkbox" name="'.$name.'" '. $checked . ' />';  
 }  
   
 ###############################################  
 ###############################################  
   
 =pod  
   
 =item &fieldtitle()  
   
 Input: $title  
   
 Returns a scalar with html which will display $title as a search  
 field heading.  
   
 =cut  
   
 ###############################################  
 ###############################################  
   
 sub fieldtitle {  
     my $title = uc(shift());  
     return '<font color="#800000" face="helvetica"><b>'.$title.  
         ':&nbsp;</b></font>';  
 }  
   
 ###############################################  
 ###############################################  
   
 =pod  
   
 =item &searchphrasefield()  
   
 Inputs: $title,$name,$value  
   
 Returns html for a title line and an input field for entering search terms.  
 The entry field (which is where the $name and $value are used) is a 50 column   
 simpletextfield.  The html returned is for a row in a three column table.  
   
 =cut  
   
 ###############################################  
 ###############################################  
       
 sub searchphrasefield {  
     my ($title,$name,$value)=@_;  
     return '<tr><td>'.&fieldtitle($title).'</td><td>'.  
         &simpletextfield($name,$value,50)."</td><td>&nbsp;</td></tr>\n";  
 }  
   
 ###############################################  
 ###############################################  
   
 =pod  
   
 =item &searchphrasefield_with_related()  
   
 Inputs: $title,$name,$value  
   
 Returns html for a title line and an input field for entering search terms  
 and a check box for 'related words'.  The entry field (which is where the   
 $name and $value are used) is a 50 column simpletextfield.  The name of  
 the related words checkbox is "$name_related".  
   
 =cut  
   
 ###############################################  
 ###############################################  
       
 sub searchphrasefield_with_related {  
     my ($title,$name,$value)=@_;  
     return '<tr><td>'.&fieldtitle($title).'</td><td>'.  
         &simpletextfield($name,$value,50).'</td><td align="center">&nbsp;'.  
             &simplecheckbox($name.'_related',$ENV{'form.'.$name.'_related'}).  
                 "&nbsp;</td></tr>\n";  
 }  
   
 ###############################################  
 ###############################################  
   
 =pod  
   
 =item &dateboxes()  
   
 Returns html selection form elements for the specification of   
 the day, month, and year.  
   
 =cut  
   
 ###############################################  
 ###############################################  
   
 sub dateboxes {  
     my ($name,$defaultmonth,$defaultday,$defaultyear,  
  $currentmonth,$currentday,$currentyear)=@_;  
     ($defaultmonth,$defaultday,$defaultyear)=('','','');  
     #  
     # Day  
     my $day=<<END;  
 <select name="${name}_day">  
 <option value='$defaultday'> </option>  
 END  
     for (my $i = 1; $i<=31; $i++) {  
  $day.="<option value=\"$i\">$i</option>\n";  
     }  
     $day.="</select>\n";  
     $day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday);  
     #  
     # Month  
     my $month=<<END;  
 <select name="${name}_month">  
 <option value='$defaultmonth'> </option>  
 END  
     my $i = 1;  
     foreach (qw/January February March April May June   
      July August September October November December /){  
  $month .="<option value=\"$i\">$_</option>\n";  
  $i++;  
     }  
     $month.="</select>\n";  
     $month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth);  
     #  
     # Year (obviously)  
     my $year=<<END;  
 <select name="${name}_year">  
 <option value='$defaultyear'> </option>  
 END  
     my $maxyear = 2051;   
     for (my $i = 1976; $i<=$maxyear; $i++) {  
  $year.="<option value=\"$i\">$i</option>\n";  
     }  
     $year.="</select>\n";  
     $year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear);  
     return "$month$day$year";  
 }  
   
 ###############################################  
 ###############################################  
   
 =pod  
   
 =item &selectbox()  
   
 Returns a scalar containing an html <select> form.    
   
 Inputs:   
   
 =over 4  
   
 =item $title   
   
 Printed above the select box, in uppercase.  If undefined, only a select  
 box will be returned, with no additional html.  
   
 =item $name   
   
 The name element of the <select> tag.  
   
 =item $default   
   
 The default value of the form.  Can be $anyvalue, or in @idlist.  
   
 =item $anyvalue   
   
 The <option value="..."> used to indicate a default of   
 none of the values.  Can be undef.  
   
 =item $anytag   
   
 The text associate with $anyvalue above.  
   
 =item $functionref   
   
 Each element in @idlist will be passed as a parameter   
 to the function referenced here.  The return value of the function should  
 be a scalar description of the items.  If this value is undefined the   
 description of each item in @idlist will be the item name.  
   
 =item @idlist   
   
 The items to be selected from.  One of these or $anyvalue will be the   
 value returned by the form element, $ENV{form.$name}.  
   
 =back  
   
 =cut  
   
 ###############################################  
   
 sub selectbox {  
     my ($title,$name,$default,$anyvalue,$anytag,$functionref,@idlist)=@_;  
     if (! defined($functionref)) { $functionref = sub { $_[0]}; }  
     my $selout='';  
     if (defined($title)) {  
         my $uctitle=uc($title);  
         $selout="\n".'<p><font color="#800000" face="helvetica">'.  
             '<b>'.$uctitle.': </b></font>';  
     }  
     $selout .= '<select name="'.$name.'">';  
     unshift @idlist,$anyvalue if (defined($anyvalue));  
     foreach (@idlist) {  
         $selout.='<option value="'.$_.'"';  
         if ($_ eq $default and !/^any$/) {  
     $selout.=' selected >'.&{$functionref}($_).'</option>';  
  }  
  elsif ($_ eq $default and /^$anyvalue$/) {  
     $selout.=' selected >'.$anytag.'</option>';  
  }  
         else {$selout.='>'.&{$functionref}($_).'</option>';}  
     }  
     return $selout.'</select>'.(defined($title)?'</p>':' ');  
 }  
   
 ######################################################################  
 #                End of HTML form building functions                 #    
 ######################################################################  
   
 =pod  
   
 =back   
   
 =cut  
   
   
 ######################################################################  
 ######################################################################  ######################################################################
   
 =pod   =pod 
Line 1107  Parse advanced search form and return th Line 1043  Parse advanced search form and return th
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub parse_advanced_search {  sub parse_advanced_search {
     my ($r,$closebutton)=@_;      my ($r,$closebutton,$hidden_fields)=@_;
     my $fillflag=0;      my $fillflag=0;
     my $pretty_search_string = "<br />\n";      my $pretty_search_string = "<br />\n";
     # Clean up fields for safety      # Clean up fields for safety
Line 1118  sub parse_advanced_search { Line 1054  sub parse_advanced_search {
    'lastrevisiondatestart_month','lastrevisiondatestart_day',     'lastrevisiondatestart_month','lastrevisiondatestart_day',
    'lastrevisiondatestart_year','lastrevisiondateend_month',     'lastrevisiondatestart_year','lastrevisiondateend_month',
    'lastrevisiondateend_day','lastrevisiondateend_year',     'lastrevisiondateend_day','lastrevisiondateend_year',
    'notes','abstract','mime','language','owner',     'notes','abstract','extension','language','owner',
    'custommetadata','customshow','category') {     'custommetadata','customshow','category') {
  $ENV{"form.$field"}=~s/[^\w\/\s\(\)\=\-\"\']//g;   $ENV{"form.$field"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
     }      }
Line 1129  sub parse_advanced_search { Line 1065  sub parse_advanced_search {
  $ENV{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;   $ENV{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
     }      }
     # Preprocess the category form element.      # Preprocess the category form element.
     $ENV{'form.category'} = 'any' if (ref($ENV{'form.category'}));      $ENV{'form.category'} = 'any' if (! defined($ENV{'form.category'}) ||
     if ($ENV{'form.category'} ne 'any') {                                        ref($ENV{'form.category'}));
         my @extensions = &Apache::loncommon::filecategorytypes      #
             ($ENV{'form.category'});  
         $ENV{'form.mime'} = join ' OR ',@extensions;  
     }  
     # Check to see if enough information was filled in      # Check to see if enough information was filled in
     for my $field ('title','author','subject','keywords','url','version',      for my $field ('title','author','subject','keywords','url','version',
    'notes','abstract','mime','language','owner',     'notes','abstract','category','extension','language',
    'custommetadata') {                     'owner','custommetadata') {
  if (&filled($ENV{"form.$field"})) {   if (&filled($ENV{"form.$field"})) {
     $fillflag++;      $fillflag++;
  }   }
     }      }
     unless ($fillflag) {      if (! $fillflag) {
  &output_blank_field_error($r,$closebutton,'phase=disp_adv');   &output_blank_field_error($r,$closebutton,
                                     'phase=disp_adv',$hidden_fields);
  return ;   return ;
     }      }
     # Turn the form input into a SQL-based query      # Turn the form input into a SQL-based query
Line 1153  sub parse_advanced_search { Line 1087  sub parse_advanced_search {
     my $font = '<font color="#800000" face="helvetica">';      my $font = '<font color="#800000" face="helvetica">';
     # Evaluate logical expression AND/OR/NOT phrase fields.      # Evaluate logical expression AND/OR/NOT phrase fields.
     foreach my $field ('title','author','subject','notes','abstract','url',      foreach my $field ('title','author','subject','notes','abstract','url',
        'keywords','version','owner','mime') {         'keywords','version','owner','standards') {
  if ($ENV{'form.'.$field}) {   if ($ENV{'form.'.$field}) {
             my $searchphrase = $ENV{'form.'.$field};              my $searchphrase = $ENV{'form.'.$field};
             $pretty_search_string .= $font."$field</font> contains <b>".              $pretty_search_string .= $font."$field</font> contains <b>".
Line 1172  sub parse_advanced_search { Line 1106  sub parse_advanced_search {
     push @queries,&build_SQL_query($field,$searchphrase);      push @queries,&build_SQL_query($field,$searchphrase);
         }          }
     }      }
     # I dislike the hack below.      #
     if ($ENV{'form.category'}) {      # Make the 'mime' from 'form.category' and 'form.extension'
         $ENV{'form.mime'}='';      #
       my $searchphrase;
       if (exists($ENV{'form.category'})    && 
           $ENV{'form.category'} !~ /^\s*$/ &&
           $ENV{'form.category'} ne 'any')     {
           my @extensions = &Apache::loncommon::filecategorytypes
                                                      ($ENV{'form.category'});
           if (scalar(@extensions) > 0) {
               $searchphrase = join(' OR ',@extensions);
           }
     }      }
       if (exists($ENV{'form.extension'}) && $ENV{'form.extension'} !~ /^\s*$/) {
           $searchphrase .= ' OR ' if (defined($searchphrase));
           my @extensions = split(/,/,$ENV{'form.extension'});
           $searchphrase .= join(' OR ',@extensions);
       }
       if (defined($searchphrase)) {
           push @queries,&build_SQL_query('mime',$searchphrase);
           $pretty_search_string .=$font.'mime</font> contains <b>'.
               $searchphrase.'</b><br />';
       }
       #
     # Evaluate option lists      # Evaluate option lists
     if ($ENV{'form.language'} and $ENV{'form.language'} ne 'any') {      if ($ENV{'form.language'} and $ENV{'form.language'} ne 'any') {
  push @queries,"(language like \"$ENV{'form.language'}\")";   push @queries,"(language like \"$ENV{'form.language'}\")";
Line 1207  sub parse_advanced_search { Line 1161  sub parse_advanced_search {
  );   );
     # Test to see if date windows are legitimate      # Test to see if date windows are legitimate
     if ($datequery=~/^Incorrect/) {      if ($datequery=~/^Incorrect/) {
  &output_date_error($r,$datequery,$closebutton);   &output_date_error($r,$datequery,$closebutton,$hidden_fields);
  return ;   return ;
     } elsif ($datequery) {      } elsif ($datequery) {
         # Here is where you would set up pretty_search_string to output          # Here is where you would set up pretty_search_string to output
         # date query information.          # date query information.
  push @queries,$datequery;   push @queries,$datequery;
     }      }
       #
     # Process form information for custom metadata querying      # Process form information for custom metadata querying
     my $customquery=undef;      my $customquery=undef;
 #    if ($ENV{'form.custommetadata'}) {      ##
 #        $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".      ## The custom metadata search was removed q long time ago mostly 
 #            $ENV{'form.custommetadata'}."</b><br />\n";      ## because I was unable to figureout exactly how it worked and could
 # $customquery=&build_custommetadata_query('custommetadata',      ## not imagine people actually using it.  MH
 #      $ENV{'form.custommetadata'});      ##
 #    }      # if ($ENV{'form.custommetadata'}) {
       #    $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".
       #    $ENV{'form.custommetadata'}."</b><br />\n";
       #    $customquery=&build_custommetadata_query('custommetadata',
       #                                             $ENV{'form.custommetadata'});
       # }
     my $customshow=undef;      my $customshow=undef;
 #    if ($ENV{'form.customshow'}) {      # if ($ENV{'form.customshow'}) {
 #        $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".      # $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".
 #            $ENV{'form.customshow'}."</b><br />\n";      #                         $ENV{'form.customshow'}."</b><br />\n";
 # $customshow=$ENV{'form.customshow'};      #    $customshow=$ENV{'form.customshow'};
 # $customshow=~s/[^\w\s]//g;      #    $customshow=~s/[^\w\s]//g;
 # my @fields=split(/\s+/,$customshow);      #    my @fields=split(/\s+/,$customshow);
 # $customshow=join(" ",@fields);      #    $customshow=join(" ",@fields);
 #    }      # }
     ## ---------------------------------------------------------------      ##
     ## Deal with restrictions to given domains      ## Deal with restrictions to given domains
     ##       ## 
       my ($libraries_to_query,$pretty_domains_string) = 
           &parse_domain_restrictions();
       $pretty_search_string .= $pretty_domains_string."<br />\n";
       #
       if (@queries) {
    $query=join(" AND ",@queries);
    $query="select * from metadata where $query";
       } elsif ($customquery) {
           $query = '';
       }
       return ($query,$customquery,$customshow,$libraries_to_query,
               $pretty_search_string);
   }
   
   sub parse_domain_restrictions {
     my $libraries_to_query = undef;      my $libraries_to_query = undef;
     # $ENV{'form.domains'} can be either a scalar or an array reference.      # $ENV{'form.domains'} can be either a scalar or an array reference.
     # We need an array.      # We need an array.
     my @allowed_domains = (ref($ENV{'form.domains'}) ? @{$ENV{'form.domains'}}       if (! exists($ENV{'form.domains'})) {
                            :  ($ENV{'form.domains'}) );          return (undef,'');
       }
       my @allowed_domains;
       if (ref($ENV{'form.domains'})) {
           @allowed_domains =  @{$ENV{'form.domains'}};
       } else {
           @allowed_domains = ($ENV{'form.domains'});
       }
       #
     my %domain_hash = ();      my %domain_hash = ();
     my $pretty_domains_string;      my $pretty_domains_string;
     foreach (@allowed_domains) {      foreach (@allowed_domains) {
Line 1261  sub parse_advanced_search { Line 1244  sub parse_advanced_search {
             }              }
         }          }
     }      }
     $pretty_search_string .= $pretty_domains_string."<br />\n";      return ($libraries_to_query,$pretty_domains_string);
     #  
     if (@queries) {  
  $query=join(" AND ",@queries);  
  $query="select * from metadata where $query";  
     } elsif ($customquery) {  
         $query = '';  
     }  
     return ($query,$customquery,$customshow,$libraries_to_query,  
             $pretty_search_string);  
 }  }
   
 ######################################################################  ######################################################################
Line 1288  Parse the basic search form and return a Line 1262  Parse the basic search form and return a
 ######################################################################  ######################################################################
 sub parse_basic_search {  sub parse_basic_search {
     my ($r,$closebutton)=@_;      my ($r,$closebutton)=@_;
       #
     # Clean up fields for safety      # Clean up fields for safety
     for my $field ('basicexp') {      for my $field ('basicexp') {
  $ENV{"form.$field"}=~s/[^\w\s\(\)\-]//g;   $ENV{"form.$field"}=~s/[^\w\s\(\)\-]//g;
Line 1298  sub parse_basic_search { Line 1273  sub parse_basic_search {
  $ENV{"form.$_"}=&Apache::lonnet::unescape($ENV{"form.$_"});   $ENV{"form.$_"}=&Apache::lonnet::unescape($ENV{"form.$_"});
  $ENV{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;   $ENV{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
     }      }
       my ($libraries_to_query,$pretty_domains_string) = 
     # Check to see if enough is filled in          &parse_domain_restrictions();
       #
       # Check to see if enough of a query is filled in
     unless (&filled($ENV{'form.basicexp'})) {      unless (&filled($ENV{'form.basicexp'})) {
  &output_blank_field_error($r,$closebutton,'phase=disp_basic');   &output_blank_field_error($r,$closebutton,'phase=disp_basic');
  return OK;   return OK;
Line 1315  sub parse_basic_search { Line 1292  sub parse_basic_search {
             $pretty_search_string .= " with no related words.";              $pretty_search_string .= " with no related words.";
         }          }
     }      }
       #
     # Build SQL query string based on form page      # Build SQL query string based on form page
     my $query='';      my $query='';
     my $concatarg=join(',"    ",',      my $concatarg=join(',',
        ('title', 'author', 'subject', 'notes', 'abstract',         ('title', 'author', 'subject', 'notes', 'abstract',
                         'keywords'));                          'keywords'));
     $concatarg='title' if $ENV{'form.titleonly'};      $concatarg='title' if $ENV{'form.titleonly'};
     $query=&build_SQL_query('concat('.$concatarg.')',$search_string);      $query=&build_SQL_query('concat_ws(" ",'.$concatarg.')',$search_string);
       if (defined($pretty_domains_string) && $pretty_domains_string ne '') {
           $pretty_search_string .= ' '.$pretty_domains_string;
       }
     $pretty_search_string .= "<br />\n";      $pretty_search_string .= "<br />\n";
     return 'select * from metadata where '.$query,$pretty_search_string;      my $final_query = 'SELECT * FROM metadata WHERE '.$query;
       # &Apache::lonnet::logthis($final_query);
       return ($final_query,$pretty_search_string,
               $libraries_to_query);
 }  }
   
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 =pod   =pod 
   
 =item &related_version  =item &related_version()
   
 Modifies an input string to include related words.  Words in the string  Modifies an input string to include related words.  Words in the string
 are replaced with parenthesized lists of 'OR'd words.  For example  are replaced with parenthesized lists of 'OR'd words.  For example
Line 1436  sub recursive_SQL_query_build { Line 1419  sub recursive_SQL_query_build {
     my @matches=($pattern=~/(\[[^\]|\[]*\])/g);      my @matches=($pattern=~/(\[[^\]|\[]*\])/g);
     return $pattern unless @matches;      return $pattern unless @matches;
     foreach my $match (@matches) {      foreach my $match (@matches) {
  $match=~/\[ (\w+)\s(.*) \]/;          $match=~/\[ (\w+)\s(.*) \]/;
  my ($key,$value)=($1,$2);          my ($key,$value)=($1,$2);
  my $replacement='';          my $replacement='';
  if ($key eq 'literal') {          if ($key eq 'literal') {
     $replacement="($dkey like \"\%$value\%\")";              $replacement="($dkey LIKE \"\%$value\%\")";
  }          } elsif (lc($key) eq 'not') {
  elsif ($key eq 'not') {              $value=~s/LIKE/NOT LIKE/;
     $value=~s/like/not like/;  #          $replacement="($dkey not like $value)";
 #    $replacement="($dkey not like $value)";              $replacement="$value";
     $replacement="$value";          } elsif ($key eq 'and') {
  }              $value=~/(.*[\"|\)]) ([|\(|\^].*)/;
  elsif ($key eq 'and') {              $replacement="($1 AND $2)";
     $value=~/(.*[\"|\)]) ([|\(|\^].*)/;   } elsif ($key eq 'or') {
     $replacement="($1 AND $2)";              $value=~/(.*[\"|\)]) ([|\(|\^].*)/;
  }              $replacement="($1 OR $2)";
  elsif ($key eq 'or') {  
     $value=~/(.*[\"|\)]) ([|\(|\^].*)/;  
     $replacement="($1 OR $2)";  
  }   }
  substr($pattern,   substr($pattern,
        index($pattern,$match),                 index($pattern,$match),
        length($match),                 length($match),
        $replacement                 $replacement);
        );  
     }      }
     &recursive_SQL_query_build($dkey,$pattern);      &recursive_SQL_query_build($dkey,$pattern);
 }  }
Line 1533  sub build_date_queries { Line 1512  sub build_date_queries {
   
 =item &copyright_check()  =item &copyright_check()
   
   Inputs: $Metadata, a hash pointer of metadata for a resource.
   
   Returns: 1 if the resource is available to the user making the query, 
            0 otherwise.
   
 =cut  =cut
   
 ######################################################################  ######################################################################
Line 1556  sub copyright_check { Line 1540  sub copyright_check {
     return 1;      return 1;
 }  }
   
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 =pod  =pod
   
 =item &ensure_db_and_table  =item &ensure_db_and_table()
   
 Ensure we can get lonmysql to connect to the database and the table we  Ensure we can get lonmysql to connect to the database and the table we
 need exists.  need exists.
Line 1618  sub ensure_db_and_table { Line 1601  sub ensure_db_and_table {
   
 =pod  =pod
   
 =item &print_sort_form  =item &print_sort_form()
   
   The sort feature is not implemented at this time.  This form just prints 
   a link to change the search query.
   
 =cut  =cut
   
Line 1626  sub ensure_db_and_table { Line 1612  sub ensure_db_and_table {
 ######################################################################  ######################################################################
 sub print_sort_form {  sub print_sort_form {
     my ($r,$pretty_query_string) = @_;      my ($r,$pretty_query_string) = @_;
       my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
     ##      ##
     my %SortableFields =       my %SortableFields=&Apache::lonlocal::texthash( 
         (id        => 'Default',           id        => 'Default',
          title     => 'Title',           title     => 'Title',
          author    => 'Author',           author    => 'Author',
          subject   => 'Subject',           subject   => 'Subject',
Line 1640  sub print_sort_form { Line 1627  sub print_sort_form {
          copyright => 'Copyright',           copyright => 'Copyright',
          hostname  => 'Host',           hostname  => 'Host',
          creationdate     => 'Creation Date',           creationdate     => 'Creation Date',
          lastrevisiondate => 'Revision Date',           lastrevisiondate => 'Revision Date'
      );       );
     ##      ##
     my $table = $ENV{'form.table'};      my $table = $ENV{'form.table'};
Line 1671  sub print_sort_form { Line 1658  sub print_sort_form {
 </script>  </script>
 <title>Results</title>  <title>Results</title>
 </head>  </head>
 <body>  $bodytag
 <form name="statusform" action="" method="post">  <form name="statusform" action="" method="post">
 <input type="hidden" name="Queue" value="" />  <input type="hidden" name="Queue" value="" />
 END  END
Line 1716  the following format: Line 1703  the following format:
   
 =cut  =cut
   
 ##  #####################################################################
 ## Restrictions:  #####################################################################
 ##    columns of type 'text' and 'blob' cannot have defaults.  #
 ##    columns of type 'enum' cannot be used for FULLTEXT.  # These should probably be scoped but I don't have time right now...
 ##  #
 my @DataOrder = qw/id title author subject url keywords version notes  my @Datatypes;
     abstract mime lang owner copyright creationdate lastrevisiondate hostname/;  my @Fullindicies;
   
 my %Datatypes =   
     ( id        =>{ type         => 'MEDIUMINT',  
                     restrictions => 'UNSIGNED NOT NULL',  
                     primary_key  => 'yes',  
                     auto_inc     => 'yes'  
                     },  
       title     =>{ type=>'TEXT'},  
       author    =>{ type=>'TEXT'},  
       subject   =>{ type=>'TEXT'},  
       url       =>{ type=>'TEXT',  
                     restrictions => 'NOT NULL' },  
       keywords  =>{ type=>'TEXT'},  
       version   =>{ type=>'TEXT'},  
       notes     =>{ type=>'TEXT'},  
       abstract  =>{ type=>'TEXT'},  
       mime      =>{ type=>'TEXT'},  
       lang      =>{ type=>'TEXT'},  
       owner     =>{ type=>'TEXT'},  
       copyright =>{ type=>'TEXT'},  
       hostname  =>{ type=>'TEXT'},  
       #--------------------------------------------------  
       creationdate     =>{ type=>'DATETIME'},  
       lastrevisiondate =>{ type=>'DATETIME'},  
       #--------------------------------------------------  
       );  
   
 my @Fullindicies =   
     qw/title/;  
 #    qw/title author subject abstract mime language owner copyright/;  
           
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
Line 1772  Returns: the identifier of the table on Line 1729  Returns: the identifier of the table on
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   sub set_up_table_structure {
       my ($datatypes,$fullindicies) = 
           &LONCAPA::lonmetadata::describe_metadata_storage();
       # Copy the table description before modifying it...
       @Datatypes = @{$datatypes};
       unshift(@Datatypes,{name => 'id',  
           type => 'MEDIUMINT',
           restrictions => 'UNSIGNED NOT NULL',
           primary_key  => 'yes',
           auto_inc     => 'yes' });
       @Fullindicies = @{$fullindicies};
       return;
   }
   
 sub create_results_table {  sub create_results_table {
       &set_up_table_structure();
     my $table = &Apache::lonmysql::create_table      my $table = &Apache::lonmysql::create_table
         ( { columns => \%Datatypes,          ( { columns => \@Datatypes,
             column_order => \@DataOrder,              FULLTEXT => [{'columns' => \@Fullindicies},],
             fullindex => \@Fullindicies,  
         } );          } );
     if (defined($table)) {      if (defined($table)) {
         $ENV{'form.table'} = $table;          $ENV{'form.table'} = $table;
Line 1843  sub update_seconds { Line 1814  sub update_seconds {
   
 =pod  =pod
   
 =item &revise_button  =item &revise_button()
   
 Inputs: None  Inputs: None
   
Line 1858  sub revise_button { Line 1829  sub revise_button {
     $revise_phase = 'disp_adv' if ($ENV{'form.searchmode'} eq 'advanced');      $revise_phase = 'disp_adv' if ($ENV{'form.searchmode'} eq 'advanced');
     my $newloc = '/adm/searchcat'.      my $newloc = '/adm/searchcat'.
         '?persistent_db_id='.$ENV{'form.persistent_db_id'}.          '?persistent_db_id='.$ENV{'form.persistent_db_id'}.
               '&cleargroupsort=1'.
             '&phase='.$revise_phase;              '&phase='.$revise_phase;
     my $result = qq{<input type="button" value="Revise search" name="revise"} .      my $result = qq{<input type="button" value="Revise search" name="revise"} .
         qq{ onClick="parent.location='$newloc';" /> };          qq{ onClick="parent.location='$newloc';" /> };
Line 1869  sub revise_button { Line 1841  sub revise_button {
   
 =pod  =pod
   
 =item &run_search   =item &run_search()
   
   Executes a search query by sending it the the other servers and putting the
   results into MySQL.
   
 =cut  =cut
   
Line 1877  sub revise_button { Line 1852  sub revise_button {
 ######################################################################  ######################################################################
 sub run_search {  sub run_search {
     my ($r,$query,$customquery,$customshow,$serverlist,$pretty_string) = @_;      my ($r,$query,$customquery,$customshow,$serverlist,$pretty_string) = @_;
       my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
     my $connection = $r->connection;      my $connection = $r->connection;
     #      #
     # Timing variables      # Timing variables
Line 1889  sub run_search { Line 1865  sub run_search {
     $r->print(<<END);      $r->print(<<END);
 <html>  <html>
 <head><title>Search Status</title></head>  <head><title>Search Status</title></head>
 <body>  $bodytag
 <form name="statusform" action="" method="post">  <form name="statusform" action="" method="post">
 <input type="hidden" name="Queue" value="" />  <input type="hidden" name="Queue" value="" />
 END  END
Line 1900  END Line 1876  END
     if (@Lines > 2) {      if (@Lines > 2) {
         $pretty_string = join '<br \>',(@Lines[0..2],'....<br />');          $pretty_string = join '<br \>',(@Lines[0..2],'....<br />');
     }      }
     $r->print("Search: ".$pretty_string);      $r->print(&mt("Search").": ".$pretty_string);
     $r->rflush();      $r->rflush();
     #      #
     # Determine the servers we need to contact.      # Determine the servers we need to contact.
     #  
     my @Servers_to_contact;      my @Servers_to_contact;
     if (defined($serverlist)) {      if (defined($serverlist)) {
         if (ref($serverlist) eq 'ARRAY') {          if (ref($serverlist) eq 'ARRAY') {
Line 1932  END Line 1907  END
         return;          return;
     }      }
     if (! $table_status) {      if (! $table_status) {
           &Apache::lonnet::logthis("lonmysql error = ".
                                    &Apache::lonmysql::get_error());
           &Apache::lonnet::logthis("lonmysql debug = ".
                                    &Apache::lonmysql::get_debug());
           &Apache::lonnet::logthis('table status = "'.$table_status.'"');
         $r->print("The table id,$table, we tried to use is invalid.".          $r->print("The table id,$table, we tried to use is invalid.".
                   "The search has been aborted.</body></html>");                    "The search has been aborted.</body></html>");
         return;          return;
     }      }
     ##      ##
     ## Prepare for the big loop.      ## Prepare for the big loop.
     ##  
     my $hitcountsum;      my $hitcountsum;
     my $server;       my $server; 
     my $status;      my $status;
Line 1957  END Line 1936  END
 END  END
     $r->rflush();      $r->rflush();
     my $time_remaining = $max_time - (time - $starttime) ;      my $time_remaining = $max_time - (time - $starttime) ;
       $time_remaining = 0 if ($time_remaining <0);
     my $last_time = $time_remaining;      my $last_time = $time_remaining;
     &update_seconds($r,$time_remaining);      &update_seconds($r,$time_remaining);
     while (($time_remaining > 0) &&       &update_status($r,'contacting '.$Servers_to_contact[0]);
       while (($time_remaining > 0) &&
            ((@Servers_to_contact) || keys(%Server_status))) {             ((@Servers_to_contact) || keys(%Server_status))) {
           $time_remaining = $max_time - (time - $starttime) ;
           &update_seconds($r,$time_remaining);
         # Send out a search request if it needs to be done.          # Send out a search request if it needs to be done.
         if (@Servers_to_contact) {          if (@Servers_to_contact) {
             # Contact one server              # Contact one server
             my $server = shift(@Servers_to_contact);              my $server = shift(@Servers_to_contact);
               &update_status($r,&mt('contacting').' '.$server);
             my $reply=&Apache::lonnet::metadata_query($query,$customquery,              my $reply=&Apache::lonnet::metadata_query($query,$customquery,
                                                       $customshow,[$server]);                                                        $customshow,[$server]);
             ($server) = keys(%$reply);              ($server) = keys(%$reply);
             $Server_status{$server} = $reply->{$server};              $Server_status{$server} = $reply->{$server};
             &update_status($r,'contacting '.$server);  
         } else {          } else {
             # wait a sec. to give time for files to be written              # wait a sec. to give time for files to be written
             # This sleep statement is here instead of outside the else               # This sleep statement is here instead of outside the else 
             # block because we do not want to pause if we have servers              # block because we do not want to pause if we have servers
             # left to contact.                # left to contact.  
               if (scalar (keys(%Server_status))) {
                   &update_status($r,
                          &mt('waiting on').' '.(join(' ',keys(%Server_status))));
               }
             sleep(1);               sleep(1); 
         }          }
         &update_status($r,'waiting on '.(join(' ',keys(%Server_status))));          #
           # Loop through the servers we have contacted but do not
           # have results from yet, looking for results.
         while (my ($server,$status) = each(%Server_status)) {          while (my ($server,$status) = each(%Server_status)) {
             last if ($connection->aborted());              last if ($connection->aborted());
               $time_remaining = $max_time - (time - $starttime) ;
               $time_remaining = 0 if ($time_remaining < 0);
               if ($last_time - $time_remaining > 0) {
                   $last_time = $time_remaining;
                   &update_seconds($r,$time_remaining);
               }
             if ($status eq 'con_lost') {              if ($status eq 'con_lost') {
                 delete ($Server_status{$server});                  delete ($Server_status{$server});
                 next;                  next;
Line 1987  END Line 1982  END
             $status=~/^([\.\w]+)$/;               $status=~/^([\.\w]+)$/; 
            my $datafile=$r->dir_config('lonDaemons').'/tmp/'.$1;             my $datafile=$r->dir_config('lonDaemons').'/tmp/'.$1;
             if (-e $datafile && ! -e "$datafile.end") {              if (-e $datafile && ! -e "$datafile.end") {
                 &update_status($r,'Receiving results from '.$server);                  &update_status($r,&mt('Receiving results from').' '.$server);
                 next;                  next;
             }              }
             last if ($connection->aborted());              last if ($connection->aborted());
             if (-e "$datafile.end") {              if (-e "$datafile.end") {
                 &update_status($r,'Reading results from '.$server);                  &update_status($r,&mt('Reading results from').' '.$server);
                 if (-z "$datafile") {                  if (-z "$datafile") {
                     delete($Server_status{$server});                      delete($Server_status{$server});
                     next;                      next;
Line 2022  END Line 2017  END
                     # $r->print(&Apache::lonmysql::get_debug());                      # $r->print(&Apache::lonmysql::get_debug());
                     $hitcountsum ++;                      $hitcountsum ++;
                     $time_remaining = $max_time - (time - $starttime) ;                      $time_remaining = $max_time - (time - $starttime) ;
                       $time_remaining = 0 if ($time_remaining < 0);
                     if ($last_time - $time_remaining > 0) {                      if ($last_time - $time_remaining > 0) {
                         &update_seconds($r,$time_remaining);                          &update_seconds($r,$time_remaining);
                         $last_time = $time_remaining;                          $last_time = $time_remaining;
Line 2040  END Line 2036  END
         }          }
         last if ($connection->aborted());          last if ($connection->aborted());
         # Finished looping through the servers          # Finished looping through the servers
           $starttime = time if (@Servers_to_contact);
         $time_remaining = $max_time - (time - $starttime) ;          $time_remaining = $max_time - (time - $starttime) ;
         if ($last_time - $time_remaining > 0) {          if ($last_time - $time_remaining > 0) {
             $last_time = $time_remaining;              $last_time = $time_remaining;
             &update_seconds($r,$time_remaining);              &update_seconds($r,$time_remaining);
         }          }
     }      }
     &update_status($r,'Search Complete'.$server);      &update_status($r,&mt('Search Complete').$server);
     &update_seconds($r,0);      &update_seconds($r,0);
       #
     &Apache::lonmysql::disconnect_from_db();      &Apache::lonmysql::disconnect_from_db();
       #
     # We have run out of time or run out of servers to talk to and      # We have run out of time or run out of servers to talk to and
     # results to get.        # results to get.  
     $r->print("</body></html>");      $r->print("</body></html>");
Line 2064  END Line 2063  END
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 =pod  =pod
   
 =item &prev_next_buttons  =item &prev_next_buttons()
   
   Returns html for the previous and next buttons on the search results page.
   
 =cut  =cut
   
Line 2081  sub prev_next_buttons { Line 2083  sub prev_next_buttons {
     my $prev_min = $current_min - $show;      my $prev_min = $current_min - $show;
     $prev_min = 1 if $prev_min < 1;      $prev_min = 1 if $prev_min < 1;
     if ($prev_min < $current_min) {      if ($prev_min < $current_min) {
         $links .= qq{          $links .= 
 <a href="/adm/searchcat?$parms&start=$prev_min&show=$show">prev</a>              qq{<a href="/adm/searchcat?$parms&start=$prev_min&show=$show">}.
 };                  &mt('prev').'</a>';
     } else {      } else {
         $links .= 'prev';          $links .= &mt('prev');
     }      }
     ##      ##
     ## Pages.... Someday.      ## Pages.... Someday.
     ##      ##
     $links .= qq{ &nbsp;      $links .= 
 <a href="/adm/searchcat?$parms&start=$current_min&$show=$show">reload</a>          qq{&nbsp;
 };             <a href="/adm/searchcat?$parms&start=$current_min&$show=$show">}.
                   &mt('reload').'</a>';
     ##      ##
     ## Next      ## Next
     my $next_min = $current_min + $show;      my $next_min = $current_min + $show;
     $next_min = $current_min if ($next_min > $total);      $next_min = $current_min if ($next_min > $total);
     if ($next_min != $current_min) {      if ($next_min != $current_min) {
         $links .= qq{ &nbsp;          $links .= 
 <a href="/adm/searchcat?$parms&start=$next_min&show=$show">next</a>              qq{&nbsp;
 };                     <a href="/adm/searchcat?$parms&start=$next_min&show=$show">}.
                       &mt('next').'</a>';
     } else {      } else {
         $links .= '&nbsp;next';          $links .= '&nbsp;'.&mt('next');
     }      }
     return $links;      return $links;
 }  }
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 =pod  =pod
   
 =item &display_results  =item &display_results()
   
   Prints the results out for selection and perusal.
   
 =cut  =cut
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub display_results {  sub display_results {
     my ($r,$importbutton,$closebutton) = @_;      my ($r,$importbutton,$closebutton,$diropendb) = @_;
     my $connection = $r->connection;      my $connection = $r->connection;
     $r->print(&search_results_header($importbutton,$closebutton));      $r->print(&search_results_header($importbutton,$closebutton));
     ##      ##
Line 2131  sub display_results { Line 2138  sub display_results {
         return;          return;
     }      }
     ##      ##
       ## $checkbox_num is a count of the number of checkboxes output on the 
       ## page this is used only during catalogmode=groupsearch.
       my $checkbox_num = 0;
       ##
     ## Get the catalog controls setup      ## Get the catalog controls setup
     ##      ##
     my $action = "/adm/searchcat?phase=results";      my $action = "/adm/searchcat?phase=results";
     ##      ##
     ## Deal with groupsearch      ## Deal with groupsearch by opening the groupsearch db file.
     ##  
     if ($ENV{'form.catalogmode'} eq 'groupsearch') {      if ($ENV{'form.catalogmode'} eq 'groupsearch') {
         if (! tie(%groupsearch_db,'GDBM_File',$diropendb,          if (! tie(%groupsearch_db,'GDBM_File',$diropendb,
                   &GDBM_WRCREAT(),0640)) {                    &GDBM_WRCREAT(),0640)) {
Line 2147  sub display_results { Line 2157  sub display_results {
     }      }
     ##      ##
     ## Prepare the table for querying      ## Prepare the table for querying
     ##  
     my $table = $ENV{'form.table'};      my $table = $ENV{'form.table'};
     return if (! &ensure_db_and_table($r,$table));      return if (! &ensure_db_and_table($r,$table));
     ##      ##
     ## Get the number of results       ## Get the number of results 
     ##  
     my $total_results = &Apache::lonmysql::number_of_rows($table);      my $total_results = &Apache::lonmysql::number_of_rows($table);
     if (! defined($total_results)) {      if (! defined($total_results)) {
         $r->print("A MySQL error has occurred.</form></body></html>");          $r->print("A MySQL error has occurred.</form></body></html>");
Line 2163  sub display_results { Line 2171  sub display_results {
     }      }
     ##      ##
     ## Determine how many results we need to get      ## Determine how many results we need to get
     ##  
     $ENV{'form.start'} = 1      if (! exists($ENV{'form.start'}));      $ENV{'form.start'} = 1      if (! exists($ENV{'form.start'}));
     $ENV{'form.show'}  = 'all'  if (! exists($ENV{'form.show'}));      $ENV{'form.show'}  = 'all'  if (! exists($ENV{'form.show'}));
     my $min = $ENV{'form.start'};      my $min = $ENV{'form.start'};
Line 2176  sub display_results { Line 2183  sub display_results {
     }      }
     ##      ##
     ## Output links (if necessary) for 'prev' and 'next' pages.      ## Output links (if necessary) for 'prev' and 'next' pages.
     ##  
     $r->print      $r->print
         ('<center>'.          ('<center>'.
          &prev_next_buttons($min,$ENV{'form.show'},$total_results,           &prev_next_buttons($min,$ENV{'form.show'},$total_results,
Line 2186  sub display_results { Line 2192  sub display_results {
          ."</center>\n"           ."</center>\n"
          );           );
     if ($total_results == 0) {      if ($total_results == 0) {
         $r->print("There are currently no results.\n".          $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="1">'.
                     '<h3>'.&mt('There are currently no results').'.</h3>'.
                   "</form></body></html>");                    "</form></body></html>");
         return;          return;
     } else {      } else {
Line 2195  sub display_results { Line 2202  sub display_results {
     }      }
     ##      ##
     ## Get results from MySQL table      ## Get results from MySQL table
     ##  
     my @Results = &Apache::lonmysql::get_rows($table,      my @Results = &Apache::lonmysql::get_rows($table,
                                               'id>='.$min.' AND id<='.$max);                                                'id>='.$min.' AND id<='.$max);
     ##      ##
     ## Loop through the results and output them.      ## Loop through the results and output them.
     ##  
     foreach my $row (@Results) {      foreach my $row (@Results) {
         if ($connection->aborted()) {          if ($connection->aborted()) {
             untie %groupsearch_db if (tied(%groupsearch_db));              &cleanup();
             &Apache::lonmysql::disconnect_from_db();  
             return;              return;
         }          }
         my %Fields = %{&parse_row(@$row)};          my %Fields = %{&parse_row(@$row)};
         my $output="<p>\n";          my $output="<p>\n";
         my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'});          if (! defined($Fields{'title'}) || $Fields{'title'} eq '') {
               $Fields{'title'} = 'Untitled';
           }
           my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'},
                                          $Fields{'id'},$checkbox_num++);
   
         # Render the result into html          # Render the result into html
         $output.= &$viewfunction($prefix,%Fields);          $output.= &$viewfunction($prefix,%Fields);
         # Print them out as they come in.          # Print them out as they come in.
Line 2217  sub display_results { Line 2226  sub display_results {
         $r->rflush();          $r->rflush();
     }      }
     if (@Results < 1) {      if (@Results < 1) {
         $r->print("There were no results matching your query");          $r->print(&mt("There were no results matching your query"));
     } else {      } else {
         $r->print          $r->print
             ('<center>'.              ('<center>'.
Line 2240  sub display_results { Line 2249  sub display_results {
   
 =pod  =pod
   
 =item &catalogmode_output($title,$url)  =item &catalogmode_output($title,$url,$fnum,$checkbox_num)
   
 Returns html needed for the various catalog modes.  Gets inputs from  Returns html needed for the various catalog modes.  Gets inputs from
 $ENV{'form.catalogmode'}.  Stores data in %groupsearch_db and $fnum   $ENV{'form.catalogmode'}.  Stores data in %groupsearch_db.
 (local variable).  
   
 =cut  =cut
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 {   
 my $fnum = 0;  
   
 sub catalogmode_output {  sub catalogmode_output {
     my $output = '';      my $output = '';
     my ($title,$url) = @_;      my ($title,$url,$fnum,$checkbox_num) = @_;
     if ($ENV{'form.catalogmode'} eq 'interactive') {      if ($ENV{'form.catalogmode'} eq 'interactive') {
         $title=~ s/\'/\\\'/g;          $title=~ s/\'/\\\'/g;
         if ($ENV{'form.catalogmode'} eq 'interactive') {          if ($ENV{'form.catalogmode'} eq 'interactive') {
Line 2271  END Line 2276  END
         $output.=<<END;          $output.=<<END;
 <font size='-1'>  <font size='-1'>
 <input type="checkbox" name="returnvalues" value="SELECT"  <input type="checkbox" name="returnvalues" value="SELECT"
 onClick="javascript:queue($fnum)" />  onClick="javascript:queue($checkbox_num,$fnum)" />
 </font>  </font>
 END  END
         $fnum++;  
     }      }
     return $output;      return $output;
 }  }
   
 }  
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 =pod  =pod
   
 =item &parse_row  =item &parse_row()
   
 Parse a row returned from the database.  Parse a row returned from the database.
   
Line 2296  Parse a row returned from the database. Line 2298  Parse a row returned from the database.
 sub parse_row {  sub parse_row {
     my @Row = @_;      my @Row = @_;
     my %Fields;      my %Fields;
       if (! scalar(@Datatypes)) {
           &set_up_table_structure();
       }
     for (my $i=0;$i<=$#Row;$i++) {      for (my $i=0;$i<=$#Row;$i++) {
         $Fields{$DataOrder[$i]}=&Apache::lonnet::unescape($Row[$i]);          $Fields{$Datatypes[$i]->{'name'}}=&Apache::lonnet::unescape($Row[$i]);
     }      }
     $Fields{'language'} =       $Fields{'language'} = 
         &Apache::loncommon::languagedescription($Fields{'lang'});          &Apache::loncommon::languagedescription($Fields{'language'});
     $Fields{'copyrighttag'} =      $Fields{'copyrighttag'} =
         &Apache::loncommon::copyrightdescription($Fields{'copyright'});          &Apache::loncommon::copyrightdescription($Fields{'copyright'});
     $Fields{'mimetag'} =      $Fields{'mimetag'} =
Line 2316  sub parse_row { Line 2321  sub parse_row {
 =item &parse_raw_result()  =item &parse_raw_result()
   
 Takes a line from the file of results and parse it.  Returns a hash   Takes a line from the file of results and parse it.  Returns a hash 
 with keys for the following fields:  with keys according to column labels
 'title', 'author', 'subject', 'url', 'keywords', 'version', 'notes',   
 'abstract', 'mime', 'lang', 'owner', 'copyright', 'creationdate',   
 'lastrevisiondate'.  
   
 In addition, the following tags are set by calling the appropriate   In addition, the following tags are set by calling the appropriate 
 lonnet function: 'language', 'cprtag', 'mimetag'.  lonnet function: 'language', 'copyrighttag', 'mimetag'.
   
 The 'title' field is set to "Untitled" if the title field is blank.  The 'title' field is set to "Untitled" if the title field is blank.
   
Line 2334  The 'title' field is set to "Untitled" i Line 2336  The 'title' field is set to "Untitled" i
 ###########################################################  ###########################################################
 sub parse_raw_result {  sub parse_raw_result {
     my ($result,$hostname) = @_;      my ($result,$hostname) = @_;
     # Check for a comma - if it is there then we do not need to unescape the      # conclude from self to others regarding fields
     # string.  There seems to be some kind of problem with some items in      my %Fields=&LONCAPA::lonmetadata::metadata_col_to_hash
     # the database - the entire string gets sent out unescaped...?          (map {
     unless ($result =~ /,/) {              &Apache::lonnet::unescape($_);
         $result = &Apache::lonnet::unescape($result);          } (split(/\,/,$result)) );
     }  
     my @fields=map {  
         &Apache::lonnet::unescape($_);  
     } (split(/\,/,$result));  
     my ($title,$author,$subject,$url,$keywords,$version,  
         $notes,$abstract,$mime,$lang,  
         $creationdate,$lastrevisiondate,$owner,$copyright)=@fields;  
     my %Fields =   
         ( title     => &Apache::lonnet::unescape($title),  
           author    => &Apache::lonnet::unescape($author),  
           subject   => &Apache::lonnet::unescape($subject),  
           url       => &Apache::lonnet::unescape($url),  
           keywords  => &Apache::lonnet::unescape($keywords),  
           version   => &Apache::lonnet::unescape($version),  
           notes     => &Apache::lonnet::unescape($notes),  
           abstract  => &Apache::lonnet::unescape($abstract),  
           mime      => &Apache::lonnet::unescape($mime),  
           lang      => &Apache::lonnet::unescape($lang),  
           owner     => &Apache::lonnet::unescape($owner),  
           copyright => &Apache::lonnet::unescape($copyright),  
           creationdate     => &Apache::lonnet::unescape($creationdate),  
           lastrevisiondate => &Apache::lonnet::unescape($lastrevisiondate)  
         );  
     $Fields{'language'} =   
         &Apache::loncommon::languagedescription($Fields{'lang'});  
     $Fields{'copyrighttag'} =  
         &Apache::loncommon::copyrightdescription($Fields{'copyright'});  
     $Fields{'mimetag'} =  
         &Apache::loncommon::filedescription($Fields{'mime'});  
     if ($Fields{'author'}=~/^(\s*|error)$/) {  
         $Fields{'author'}="Unknown Author";  
     }  
     # Put spaces in the keyword list, if needed.  
     $Fields{'keywords'}=~ s/,([A-z])/, $1/g;   
     if ($Fields{'title'}=~ /^\s*$/ ) {   
         $Fields{'title'}='Untitled';   
     }  
     unless ($ENV{'user.adv'}) {  
         # What is this anyway?  
         $Fields{'keywords'} = '- not displayed -';  
         $Fields{'notes'}    = '- not displayed -';  
         $Fields{'abstract'} = '- not displayed -';  
         $Fields{'subject'}  = '- not displayed -';  
     }  
     if (length($Fields{'abstract'})>200) {  
         $Fields{'abstract'} =   
             substr($Fields{'abstract'},0,200).'...';  
     }  
     if (length($Fields{'keywords'})>200) {  
         $Fields{'keywords'} =  
             substr($Fields{'keywords'},0,200).'...';  
     }  
     return %Fields;      return %Fields;
 }  }
   
Line 2440  sub handle_custom_fields { Line 2390  sub handle_custom_fields {
   
 =pod  =pod
   
 =item &search_results_header  =item &search_results_header()
   
 Output the proper html headers and javascript code to deal with different   Output the proper html headers and javascript code to deal with different 
 calling modes.  calling modes.
Line 2467  Checked for existance & 'edit' mode. Line 2417  Checked for existance & 'edit' mode.
   
 =item 'form.form'  =item 'form.form'
   
   Contains the name of the form that has the input fields to set
   
 =item 'form.element'  =item 'form.element'
   
   the name of the input field to put the URL into
   
   =item 'form.titleelement'
   
   the name of the input field to put the title into
   
 =back  =back
   
 =cut  =cut
Line 2477  Checked for existance & 'edit' mode. Line 2435  Checked for existance & 'edit' mode.
 ######################################################################  ######################################################################
 sub search_results_header {  sub search_results_header {
     my ($importbutton,$closebutton) = @_;      my ($importbutton,$closebutton) = @_;
       my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
     my $result = '';      my $result = '';
     # output beginning of search page      # output beginning of search page
     # conditional output of script functions dependent on the mode in      # conditional output of script functions dependent on the mode in
Line 2505  SCRIPT Line 2464  SCRIPT
         } elsif ($ENV{'form.mode'} eq 'edit') {          } elsif ($ENV{'form.mode'} eq 'edit') {
             my $form = $ENV{'form.form'};              my $form = $ENV{'form.form'};
             my $element = $ENV{'form.element'};              my $element = $ENV{'form.element'};
               my $titleelement = $ENV{'form.titleelement'};
       my $changetitle;
       if (!$titleelement) {
    $changetitle='function changeTitle(val) {}';
       } else {
       $changetitle=<<END;
   function changeTitle(val) {
       if (parent.targetwin.document) {
           parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val;
       } else {
    var url = 'forms[\"$form\"].elements[\"$titleelement\"].value';
           alert("Unable to transfer data to "+url);
       }
   }
   END
               }
   
             $result.=<<SCRIPT;              $result.=<<SCRIPT;
 <script type="text/javascript">  <script type="text/javascript">
 function select_data(title,url) {  function select_data(title,url) {
     changeURL(url);      changeURL(url);
       changeTitle(title);
     parent.close();      parent.close();
 }  }
 function changeTitle(val) {  $changetitle
 }  
 function changeURL(val) {  function changeURL(val) {
     if (parent.targetwin.document) {      if (parent.targetwin.document) {
         parent.targetwin.document.forms["$form"].elements["$element"].value=val;          parent.targetwin.document.forms["$form"].elements["$element"].value=val;
Line 2527  SCRIPT Line 2503  SCRIPT
     }      }
     $result.=<<SCRIPT if $ENV{'form.catalogmode'} eq 'groupsearch';      $result.=<<SCRIPT if $ENV{'form.catalogmode'} eq 'groupsearch';
 <script type="text/javascript">  <script type="text/javascript">
     function queue(val) {      function queue(checkbox_num,val) {
         if (document.forms.results.returnvalues[val].checked) {          if (document.forms.results.returnvalues.length != "undefined" &&
             parent.statusframe.document.forms.statusform.elements.Queue.value +='1a'+val+'b';              typeof(document.forms.results.returnvalues.length) == "number") {
               if (document.forms.results.returnvalues[checkbox_num].checked) {
                   parent.statusframe.document.forms.statusform.elements.Queue.value +='1a'+val+'b';
               } else {
                   parent.statusframe.document.forms.statusform.elements.Queue.value +='0a'+val+'b';
               }
         } else {          } else {
             parent.statusframe.document.forms.statusform.elements.Queue.value +='0a'+val+'b';              if (document.forms.results.returnvalues.checked) {
                   parent.statusframe.document.forms.statusform.elements.Queue.value +='1a'+val+'b';
               } else {
                   parent.statusframe.document.forms.statusform.elements.Queue.value +='0a'+val+'b';
               }
         }          }
     }      }
     function select_group() {      function select_group() {
Line 2543  SCRIPT Line 2528  SCRIPT
 SCRIPT  SCRIPT
     $result.=<<END;      $result.=<<END;
 </head>  </head>
   $bodytag
 <form name="results" method="post" action="" >  <form name="results" method="post" action="" >
 <input type="hidden" name="Queue" value="" />  <input type="hidden" name="Queue" value="" />
 $importbutton  $importbutton
Line 2553  END Line 2539  END
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub search_status_header {  sub search_status_header {
       my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
     return <<ENDSTATUS;      return <<ENDSTATUS;
 <html><head><title>Search Status</title></head>  <html><head><title>Search Status</title></head>
 <body>  $bodytag
 <h3>Search Status</h3>  <h3>Search Status</h3>
 Sending search request to LON-CAPA servers.<br />  Sending search request to LON-CAPA servers.<br />
 ENDSTATUS  ENDSTATUS
Line 2582  sub print_frames_interface { Line 2569  sub print_frames_interface {
 <head>  <head>
 <script>  <script>
 var targetwin = opener;  var targetwin = opener;
   var queue = '';
 </script>  </script>
 <title>LON-CAPA Digital Library Search Results</title>  <title>LON-CAPA Digital Library Search Results</title>
 </head>  </head>
Line 2604  ENDFRAMES Line 2592  ENDFRAMES
 =item Metadata Viewing Functions  =item Metadata Viewing Functions
   
 Output is a HTML-ified string.  Output is a HTML-ified string.
   
 Input arguments are title, author, subject, url, keywords, version,  Input arguments are title, author, subject, url, keywords, version,
 notes, short abstract, mime, language, creation date,  notes, short abstract, mime, language, creation date,
 last revision date, owner, copyright, hostname, and  last revision date, owner, copyright, hostname, and
Line 2619  extra custom metadata to show. Line 2608  extra custom metadata to show.
 ######################################################################  ######################################################################
 sub detailed_citation_view {  sub detailed_citation_view {
     my ($prefix,%values) = @_;      my ($prefix,%values) = @_;
       my $icon=&Apache::loncommon::icon($values{'url'});
     my $result=<<END;      my $result=<<END;
 <b>$prefix<a href="http://$ENV{'HTTP_HOST'}$values{'url'}"   <b>$prefix<img src="$icon" /><a href="http://$ENV{'HTTP_HOST'}$values{'url'}" 
     target='search_preview'>$values{'title'}</a></b>      target='search_preview'>$values{'title'}</a></b>
 <p>  <p>
 <b>$values{'author'}</b>, <i>$values{'owner'}</i><br />  <b>$values{'author'}</b>, <i>$values{'owner'}</i><br />
Line 2630  sub detailed_citation_view { Line 2620  sub detailed_citation_view {
 <b>Notes:         </b> $values{'notes'}<br />  <b>Notes:         </b> $values{'notes'}<br />
 <b>MIME Type:     </b> $values{'mimetag'}<br />  <b>MIME Type:     </b> $values{'mimetag'}<br />
 <b>Language:      </b> $values{'language'}<br />  <b>Language:      </b> $values{'language'}<br />
 <b>Copyright/Distribution:</b> $values{'cprtag'}<br />  <b>Copyright/Distribution:</b> $values{'copyrighttag'}<br />
 </p>  </p>
 $values{'extrashow'}  $values{'extrashow'}
 <p>  <p>
Line 2653  END Line 2643  END
 ######################################################################  ######################################################################
 sub summary_view {  sub summary_view {
     my ($prefix,%values) = @_;      my ($prefix,%values) = @_;
       my $icon=&Apache::loncommon::icon($values{'url'});
     my $result=<<END;      my $result=<<END;
 $prefix<a href="http://$ENV{'HTTP_HOST'}$values{'url'}"   $prefix<img src="$icon" /><a href="http://$ENV{'HTTP_HOST'}$values{'url'}" 
    target='search_preview'>$values{'author'}</a><br />     target='search_preview'>$values{'author'}</a><br />
 $values{'title'}<br />  $values{'title'}<br />
 $values{'owner'} -- $values{'lastrevisiondate'}<br />  $values{'owner'} -- $values{'lastrevisiondate'}<br />
Line 2679  END Line 2670  END
 ######################################################################  ######################################################################
 sub compact_view {  sub compact_view {
     my ($prefix,%values) = @_;      my ($prefix,%values) = @_;
       my $icon=&Apache::loncommon::icon($values{'url'});
     my $result=<<END;      my $result=<<END;
 $prefix <a href="http://$ENV{'HTTP_HOST'}$values{'url'}"  target='search_preview'>  $prefix <img src="$icon" /> <a href="http://$ENV{'HTTP_HOST'}$values{'url'}"  target='search_preview'>
 $values{'title'}</a>  $values{'title'}</a>
 <b>$values{'author'}</b><br />  <b>$values{'author'}</b><br />
 END  END
Line 2701  END Line 2693  END
 ######################################################################  ######################################################################
 sub fielded_format_view {  sub fielded_format_view {
     my ($prefix,%values) = @_;      my ($prefix,%values) = @_;
       my $icon=&Apache::loncommon::icon($values{'url'});
     my $result=<<END;      my $result=<<END;
 $prefix  $prefix <img src="$icon" />
 <b>URL: </b> <a href="http://$ENV{'HTTP_HOST'}$values{'url'}"   <b>URL: </b> <a href="http://$ENV{'HTTP_HOST'}$values{'url'}" 
               target='search_preview'>$values{'url'}</a>                target='search_preview'>$values{'url'}</a>
 <br />  <br />
Line 2741  END Line 2734  END
 ######################################################################  ######################################################################
 sub xml_sgml_view {  sub xml_sgml_view {
     my ($prefix,%values) = @_;      my ($prefix,%values) = @_;
       my $xml = <<END;
   <LonCapaResource>
   <url>$values{'url'}</url>
   <title>$values{'title'}</title>
   <author>$values{'author'}</author>
   <subject>$values{'subject'}</subject>
   <keywords>$values{'keywords'}</keywords>
   <notes>$values{'notes'}</notes>
   <mimeInfo>
   <mime>$values{'mime'}</mime>
   <mimetag>$values{'mimetag'}</mimetag>
   </mimeInfo>
   <languageInfo>
   <language>$values{'language'}</language>
   <languagetag>$values{'languagetag'}</languagetag>
   </languageInfo>
   <creationdate>$values{'creationdate'}</creationdate>
   <lastrevisiondate>$values{'lastrevisiondate'}</lastrevisiondate>
   <owner>$values{'owner'}</owner>
   <copyrightInfo>
   <copyright>$values{'copyright'}</copyright>
   <copyrighttag>$values{'copyrighttag'}</copyrighttag>
   </copyrightInfo>
   <repositoryLocation>$values{'hostname'}</repositoryLocation>
   <shortabstract>$values{'shortabstract'}</shortabstract>
   </LonCapaResource>
   END
       $xml = &HTML::Entities::encode($xml,'<>&');
     my $result=<<END;      my $result=<<END;
 $prefix  $prefix
 <pre>  <pre>
 &lt;LonCapaResource&gt;  $xml
 &lt;url&gt;$values{'url'}&lt;/url&gt;  
 &lt;title&gt;$values{'title'}&lt;/title&gt;  
 &lt;author&gt;$values{'author'}&lt;/author&gt;  
 &lt;subject&gt;$values{'subject'}&lt;/subject&gt;  
 &lt;keywords&gt;$values{'keywords'}&lt;/keywords&gt;  
 &lt;notes&gt;$values{'notes'}&lt;/notes&gt;  
 &lt;mimeInfo&gt;  
 &lt;mime&gt;$values{'mime'}&lt;/mime&gt;  
 &lt;mimetag&gt;$values{'mimetag'}&lt;/mimetag&gt;  
 &lt;/mimeInfo&gt;  
 &lt;languageInfo&gt;  
 &lt;language&gt;$values{'lang'}&lt;/language&gt;  
 &lt;languagetag&gt;$values{'language'}&lt;/languagetag&gt;  
 &lt;/languageInfo&gt;  
 &lt;creationdate&gt;$values{'creationdate'}&lt;/creationdate&gt;  
 &lt;lastrevisiondate&gt;$values{'lastrevisiondate'}&lt;/lastrevisiondate&gt;  
 &lt;owner&gt;$values{'owner'}&lt;/owner&gt;  
 &lt;copyrightInfo&gt;  
 &lt;copyright&gt;$values{'copyright'}&lt;/copyright&gt;  
 &lt;copyrighttag&gt;$values{'copyrighttag'}&lt;/copyrighttag&gt;  
 &lt;/copyrightInfo&gt;  
 &lt;repositoryLocation&gt;$values{'hostname'}&lt;/repositoryLocation&gt;  
 &lt;shortabstract&gt;$values{'shortabstract'}&lt;/shortabstract&gt;  
 &lt;/LonCapaResource&gt;  
 </pre>  </pre>
 $values{'extrashow'}  $values{'extrashow'}
 <hr align='left' width='200' noshade />  <hr align='left' width='200' noshade />
Line 2790  END Line 2787  END
 sub filled {  sub filled {
     my ($field)=@_;      my ($field)=@_;
     if ($field=~/\S/ && $field ne 'any') {      if ($field=~/\S/ && $field ne 'any') {
  return 1;          return 1;
     }      } else {
     else {          return 0;
  return 0;  
     }      }
 }  }
   
Line 2818  $parms is extra information to include i Line 2814  $parms is extra information to include i
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub output_blank_field_error {  sub output_blank_field_error {
     my ($r,$closebutton,$parms)=@_;      my ($r,$closebutton,$parms,$hidden_fields)=@_;
       my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
     # make query information persistent to allow for subsequent revision      # make query information persistent to allow for subsequent revision
     $r->print(<<BEGINNING);      $r->print(<<BEGINNING);
 <html>  <html>
Line 2827  sub output_blank_field_error { Line 2824  sub output_blank_field_error {
 BEGINNING  BEGINNING
     $r->print(<<RESULTS);      $r->print(<<RESULTS);
 </head>  </head>
 <body bgcolor="#ffffff">  $bodytag
 <img align='right' src='/adm/lonIcons/lonlogos.gif' />  <img align='right' src='/adm/lonIcons/lonlogos.gif' />
 <h1>Search Catalog</h1>  <h1>Search Catalog</h1>
 <form method="post" action="/adm/searchcat">  <form method="post" action="/adm/searchcat">
Line 2867  Inputs: Line 2864  Inputs:
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub output_date_error {  sub output_date_error {
     my ($r,$message,$closebutton)=@_;      my ($r,$message,$closebutton,$hidden_fields)=@_;
     # make query information persistent to allow for subsequent revision      # make query information persistent to allow for subsequent revision
       my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1);
     $r->print(<<RESULTS);      $r->print(<<RESULTS);
 <html>  <html>
 <head>  <head>
 <title>The LearningOnline Network with CAPA</title>  <title>The LearningOnline Network with CAPA</title>
 </head>  </head>
 <body bgcolor="#ffffff">  $bodytag
 <img align='right' src='/adm/lonIcons/lonlogos.gif' />  <img align='right' src='/adm/lonIcons/lonlogos.gif' />
 <h1>Search Catalog</h1>  <h1>Search Catalog</h1>
 <form method="post" action="/adm/searchcat">  <form method="post" action="/adm/searchcat">
Line 2920  sub start_fresh_session { Line 2918  sub start_fresh_session {
   
 1;  1;
   
   sub cleanup {
       if (tied(%groupsearch_db)) {
           unless (untie(%groupsearch_db)) {
     &Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db');
           }
       }
       &untiehash();
       &Apache::lonmysql::disconnect_from_db();
   }
   
 __END__  __END__
   
 =pod  =pod
Removed from v.1.153  
changed lines
  Added in v.1.213

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