Diff for /loncom/interface/lonsearchcat.pm between versions 1.150 and 1.157

version 1.150, 2002/08/01 14:11:57 version 1.157, 2002/09/16 20:09:45
Line 115  that produces it.  Adding a new view typ Line 115  that produces it.  Adding a new view typ
 adding a line to the definition of this hash and making sure the function  adding a line to the definition of this hash and making sure the function
 takes the proper parameters.  takes the proper parameters.
   
   =item $bodytag
   
   LON-CAPA standard body tag, gotten from &Apache::lonnet::bodytag.
   No title, no table, just a <body> tag.
   
 =back   =back 
   
 =cut  =cut
Line 136  my %Views = ("Detailed Citation View" => Line 141  my %Views = ("Detailed Citation View" =>
              "Compact View"           => \&compact_view);               "Compact View"           => \&compact_view);
 my %persistent_db;  my %persistent_db;
 my $hidden_fields;  my $hidden_fields;
   my $bodytag;
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
Line 164  string that holds portions of the screen Line 171  string that holds portions of the screen
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
     #      #
   
       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.
Line 171  sub handler { Line 182  sub handler {
     $r->content_type('text/html');      $r->content_type('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.
     ##      ##
Line 201  sub handler { Line 216  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';                  '_'.$ENV{'form.persistent_db_id'}.'_persistent_search.db';
     ##      ##
     if (! &get_persistent_form_data($r,$persistent_db_file)) {      if (! &get_persistent_form_data($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 ".
                                      "from $persistent_db_file");                                       "from $persistent_db_file");
             $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>  $bodytag
 We were unable to retrieve data describing your search.  This is a serious  We were unable to retrieve data describing your search.  This is a serious
 error and has been logged.  Please alert your LON-CAPA administrator.  error and has been logged.  Please alert your LON-CAPA administrator.
 </body>  </body>
Line 226  END Line 242  END
     ## Clear out old values from groupsearch database      ## Clear out old values from groupsearch database
     ##      ##
     untie %groupsearch_db if (tied(%groupsearch_db));      untie %groupsearch_db if (tied(%groupsearch_db));
     if ($ENV{'form.launch'} eq '1' &&       if (($ENV{'form.launch'} eq '1') && 
         ($ENV{'form.catalogmode'} eq 'groupsearch') &&           ($ENV{'form.catalogmode'} eq 'groupsearch')) {
         ($ENV{'form.phase'} eq 'results')) {  
  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;
  } 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 298  END Line 315  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'}));
     ##      ##
     ## Switch on the phase      ## Switch on the phase
     ##      ##
Line 307  END Line 325  END
         &print_advanced_search_form($r,$closebutton);          &print_advanced_search_form($r,$closebutton);
     } elsif ($ENV{'form.phase'} eq 'results') {      } elsif ($ENV{'form.phase'} eq 'results') {
         &display_results($r,$importbutton,$closebutton);          &display_results($r,$importbutton,$closebutton);
     } elsif($ENV{'form.phase'} eq 'run_search') {      } elsif ($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($persistent_db_file,
                  ['query','customquery','customshow',                   ['query','customquery','customshow',
                   'libraries','pretty_string']);                    'libraries','pretty_string']);
         &run_search($r,$query,$customquery,$customshow,          if ($ENV{'form.phase'} eq 'sort') {
                     $libraries,$pretty_string);              &print_sort_form($r,$pretty_string);
           } elsif ($ENV{'form.phase'} eq 'run_search') {
               &run_search($r,$query,$customquery,$customshow,
                           $libraries,$pretty_string);
           }
     } 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())) {
             $r->print(<<END);              $r->print(<<END);
 <html><head><title>Search Error</title></head>  <html><head><title>Search Error</title></head>
 <body>  $bodytag
 Unable to create table in which to store search results.    Unable to create table in which to store search results.  
 The search has been aborted.  The search has been aborted.
 </body>  </body>
Line 332  END Line 358  END
         if (! &make_form_data_persistent($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>  $bodytag
 Unable to properly store search information.  The search has been aborted.  Unable to properly store search information.  The search has been aborted.
 </body>  </body>
 </html>  </html>
Line 351  END Line 377  END
                 = &parse_advanced_search($r,$closebutton);                  = &parse_advanced_search($r,$closebutton);
             return OK if (! defined($query));              return OK if (! defined($query));
         }          }
         &make_persistent($r,          &make_persistent({ query => $query,
                          { query => $query,  
                            customquery => $customquery,                             customquery => $customquery,
                            customshow => $customshow,                             customshow => $customshow,
                            libraries => $libraries,                             libraries => $libraries,
Line 382  Returns a scalar which holds html for th Line 407  Returns a scalar which holds html for th
   
 sub print_basic_search_form{  sub print_basic_search_form{
     my ($r,$closebutton) = @_;      my ($r,$closebutton) = @_;
       my $bodytag=&Apache::loncommon::bodytag('Catalog Search');
     my $scrout=<<"ENDDOCUMENT";      my $scrout=<<"ENDDOCUMENT";
 <html>  <html>
 <head>  <head>
Line 394  sub print_basic_search_form{ Line 420  sub print_basic_search_form{
     }      }
 </script>  </script>
 </head>  </head>
 <body bgcolor="#FFFFFF">  $bodytag
 <img align='right' src='/adm/lonIcons/lonlogos.gif' />  
 <h1>Search Catalog</h1>  
 <form method="post" action="/adm/searchcat">  <form method="post" action="/adm/searchcat">
 <input type="hidden" name="phase" value="basic_search" />  <input type="hidden" name="phase" value="basic_search" />
 $hidden_fields  $hidden_fields
 <h3>Basic Search</h3>  
 <p>  <p>
 Enter terms or phrases separated by AND, OR, or NOT   Enter terms or phrases separated by AND, OR, or NOT 
 then press SEARCH below.  then press SEARCH below.
Line 425  END Line 448  END
  $ENV{'form.viewselect'},   $ENV{'form.viewselect'},
  undef,undef,undef,   undef,undef,undef,
  sort(keys(%Views)));   sort(keys(%Views)));
       $scrout.=&selectbox(undef,'show',
    $ENV{'form.show'},
    undef,undef,undef,
    (10,20,50,100));
     $scrout.=<<ENDDOCUMENT;      $scrout.=<<ENDDOCUMENT;
 <input type="button" value="HELP" onClick="openhelp()" />  per page.
 </p>  </p>
 </form>  </form>
 </body>  </body>
Line 462  END Line 489  END
     if (!defined($ENV{'form.viewselect'})) {      if (!defined($ENV{'form.viewselect'})) {
         $ENV{'form.viewselect'} ="Detailed Citation View";          $ENV{'form.viewselect'} ="Detailed Citation View";
     }      }
       my $bodytag=&Apache::loncommon::bodytag('Advanced Catalog Search');
     my $scrout=<<"ENDHEADER";      my $scrout=<<"ENDHEADER";
 <html>  <html>
 <head>  <head>
Line 474  END Line 502  END
     }      }
 </script>  </script>
 </head>  </head>
 <body bgcolor="#FFFFFF">  $bodytag
 <img align='right' src='/adm/lonIcons/lonlogos.gif' />  
 <h1>Advanced Catalog Search</h1>  
 <hr />  
 Enter terms or phrases separated by search operators   Enter terms or phrases separated by search operators 
 such as AND, OR, or NOT.<br />  such as AND, OR, or NOT.<br />
 <form method="post" action="/adm/searchcat">  <form method="post" action="/adm/searchcat">
Line 492  ENDHEADER Line 517  ENDHEADER
  $ENV{'form.viewselect'},   $ENV{'form.viewselect'},
  undef,undef,undef,   undef,undef,undef,
  sort(keys(%Views)));   sort(keys(%Views)));
       $scrout.='&nbsp;';
       $scrout.=&selectbox(undef,'show',
    $ENV{'form.show'},
    undef,undef,undef,
    (10,20,50,100));
       $scrout.='&nbsp;'.
           '<font color="#800000" face="helvetica">Per Page</font>';
     $scrout.="</td><td>Related<br />Words</td></tr>\n";      $scrout.="</td><td>Related<br />Words</td></tr>\n";
     $scrout.=&searchphrasefield_with_related('title',   'title'   ,      $scrout.=&searchphrasefield_with_related('title',   'title'   ,
                                              $ENV{'form.title'});                                               $ENV{'form.title'});
Line 600  LASTREVISIONDATEEND Line 632  LASTREVISIONDATEEND
  (&Apache::loncommon::copyrightids),   (&Apache::loncommon::copyrightids),
  );   );
 # ------------------------------------------- Compute customized metadata field  # ------------------------------------------- Compute customized metadata field
     $scrout.=<<CUSTOMMETADATA;  #    $scrout.=<<CUSTOMMETADATA;
 <p>  #<p>
 <font color="#800000" face="helvetica"><b>LIMIT BY SPECIAL METADATA FIELDS:</b>  #<font color="#800000" face="helvetica"><b>LIMIT BY SPECIAL METADATA FIELDS:</b>
 </font>  #</font>
 For resource-specific metadata, enter in an expression in the form of   #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 />  #<i>key</i>=<i>value</i> separated by operators such as AND, OR or NOT.<br />
 <b>Example:</b> grandmother=75 OR grandfather=85  #<b>Example:</b> grandmother=75 OR grandfather=85
 <br />  #<br />
 CUSTOMMETADATA  #CUSTOMMETADATA
     $scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'});  #    $scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'});
     $scrout.=<<CUSTOMSHOW;  #    $scrout.=<<CUSTOMSHOW;
 <p>  #<p>
 <font color="#800000" face="helvetica"><b>SHOW SPECIAL METADATA FIELDS:</b>  #<font color="#800000" face="helvetica"><b>SHOW SPECIAL METADATA FIELDS:</b>
 </font>  #</font>
 Enter in a space-separated list of special metadata fields to show  #Enter in a space-separated list of special metadata fields to show
 in a fielded listing for each record result.  #in a fielded listing for each record result.
 <br />  #<br />
 CUSTOMSHOW  #CUSTOMSHOW
     $scrout.=&simpletextfield('customshow',$ENV{'form.customshow'});  #    $scrout.=&simpletextfield('customshow',$ENV{'form.customshow'});
     $scrout.=<<ENDDOCUMENT;      $scrout.=<<ENDDOCUMENT;
 $advanced_buttons  $advanced_buttons
 </form>  </form>
Line 651  to them. Line 683  to them.
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub get_persistent_form_data {  sub get_persistent_form_data {
     my $r = shift;  
     my $filename = shift;      my $filename = shift;
     return 0 if (! -e $filename);      return 0 if (! -e $filename);
     return undef if (! tie(%persistent_db,'GDBM_File',$filename,      return undef if (! tie(%persistent_db,'GDBM_File',$filename,
Line 663  sub get_persistent_form_data { Line 694  sub get_persistent_form_data {
     # 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 ($name !~ /^form./);
           next if (exists($ENV{$name}));
         my @values = map {           my @values = map { 
             &Apache::lonnet::unescape($_);              &Apache::lonnet::unescape($_);
         } split(',',$persistent_db{$name});          } split(',',$persistent_db{$name});
         next if (@values <1);          next if (@values <1);
         if (exists($ENV{$name})) {          if ($arrays_allowed{$name}) {
             if (ref($ENV{$name}) eq 'ARRAY') {              $ENV{$name} = [@values];
                 # If it is an array, tack @values on the end of it.  
                 $ENV{$name} = [@$ENV{$name},@values];  
             } elsif (! ref($ENV{$name}) && $arrays_allowed{$name}) {  
                 # if arrays are allowed, turn it into one and add @values  
                 $ENV{$name} = [$ENV{$name},@values];  
             } # otherwise, assume the value in $ENV{$name} is better than ours.  
         } else {          } else {
             if ($arrays_allowed{$name}) {              $ENV{$name} = $values[0] if ($values[0]);
                 $ENV{$name} = [@values];  
             } else {  
                 $ENV{$name} = $values[0] if ($values[0]);  
             }  
         }          }
     }      }
     untie (%persistent_db);      untie (%persistent_db);
Line 721  sub get_persistent_data { Line 743  sub get_persistent_data {
         my @values = map {           my @values = map { 
             &Apache::lonnet::unescape($_);              &Apache::lonnet::unescape($_);
         } split(',',$persistent_db{$name});          } split(',',$persistent_db{$name});
         if (@values == 1) {          if (@values <= 1) {
             push @Values,$values[0];              push @Values,$values[0];
         } else {          } else {
             push @Values,\@values;              push @Values,\@values;
Line 749  elements escaped and concatenated in a c Line 771  elements escaped and concatenated in a c
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub make_persistent {  sub make_persistent {
     my $r = shift;  
     my %save = %{shift()};      my %save = %{shift()};
     my $filename = shift;      my $filename = shift;
     return undef if (! tie(%persistent_db,'GDBM_File',      return undef if (! tie(%persistent_db,'GDBM_File',
                            $filename,&GDBM_WRCREAT(),0640));                             $filename,&GDBM_WRCREAT(),0640));
     foreach my $name (keys(%save)) {      foreach my $name (keys(%save)) {
         next if (! exists($save{$name}));  
         next if (! defined($save{$name}) || $save{$name} eq '');  
         my @values = (ref($save{$name}) ? @{$save{$name}} : ($save{$name}));          my @values = (ref($save{$name}) ? @{$save{$name}} : ($save{$name}));
         # We handle array references, but not recursively.          # We handle array references, but not recursively.
         my $store = join(',', map { &Apache::lonnet::escape($_); } @values );          my $store = join(',', map { &Apache::lonnet::escape($_); } @values );
Line 791  sub make_form_data_persistent { Line 810  sub make_form_data_persistent {
         next if (!/^form/ || /submit/);          next if (!/^form/ || /submit/);
         $save{$_} = $ENV{$_};          $save{$_} = $ENV{$_};
     }      }
     return &make_persistent($r,\%save,$filename);      return &make_persistent(\%save,$filename);
 }  }
   
 ######################################################################  ######################################################################
Line 1123  sub parse_advanced_search { Line 1142  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'}));
     if ($ENV{'form.category'} ne 'any') {      if ($ENV{'form.category'} ne 'any') {
         my @extensions = &Apache::loncommon::filecategorytypes          my @extensions = &Apache::loncommon::filecategorytypes
             ($ENV{'form.category'});              ($ENV{'form.category'});
Line 1137  sub parse_advanced_search { Line 1157  sub parse_advanced_search {
  }   }
     }      }
     unless ($fillflag) {      unless ($fillflag) {
  &output_blank_field_error($r,$closebutton);   &output_blank_field_error($r,$closebutton,'phase=disp_adv');
  return ;   return ;
     }      }
     # Turn the form input into a SQL-based query      # Turn the form input into a SQL-based query
Line 1209  sub parse_advanced_search { Line 1229  sub parse_advanced_search {
     }      }
     # Process form information for custom metadata querying      # Process form information for custom metadata querying
     my $customquery=undef;      my $customquery=undef;
     if ($ENV{'form.custommetadata'}) {  #    if ($ENV{'form.custommetadata'}) {
         $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".  #        $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".
             $ENV{'form.custommetadata'}."</b><br />\n";  #            $ENV{'form.custommetadata'}."</b><br />\n";
  $customquery=&build_custommetadata_query('custommetadata',  # $customquery=&build_custommetadata_query('custommetadata',
       $ENV{'form.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
     ##       ## 
Line 1238  sub parse_advanced_search { Line 1258  sub parse_advanced_search {
         $domain_hash{$_}++;          $domain_hash{$_}++;
     }      }
     if ($domain_hash{'any'}) {      if ($domain_hash{'any'}) {
         $pretty_domains_string = "Searching all domains.";          $pretty_domains_string = "In all LON-CAPA domains.";
     } else {      } else {
         if (@allowed_domains > 1) {          if (@allowed_domains > 1) {
             $pretty_domains_string = "Searching domains:";              $pretty_domains_string = "In LON-CAPA domains:";
         } else {          } else {
             $pretty_domains_string = "Searching domain ";              $pretty_domains_string = "In LON-CAPA domain ";
         }          }
         foreach (sort @allowed_domains) {          foreach (sort @allowed_domains) {
             $pretty_domains_string .= "<b>$_</b> ";              $pretty_domains_string .= "<b>".$_."</b> ";
         }          }
         foreach (keys(%Apache::lonnet::libserv)) {          foreach (keys(%Apache::lonnet::libserv)) {
             if (exists($domain_hash{$Apache::lonnet::hostdom{$_}})) {              if (exists($domain_hash{$Apache::lonnet::hostdom{$_}})) {
Line 1294  sub parse_basic_search { Line 1314  sub parse_basic_search {
   
     # Check to see if enough is filled in      # Check to see if enough is filled in
     unless (&filled($ENV{'form.basicexp'})) {      unless (&filled($ENV{'form.basicexp'})) {
  &output_blank_field_error($r,$closebutton);   &output_blank_field_error($r,$closebutton,'phase=disp_basic');
  return OK;   return OK;
     }      }
     my $pretty_search_string = '<b>'.$ENV{'form.basicexp'}.'</b>';      my $pretty_search_string = '<b>'.$ENV{'form.basicexp'}.'</b>';
Line 1530  sub build_date_queries { Line 1550  sub build_date_queries {
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 sub copyright_check {  sub copyright_check {
     my $Metadata = shift;      my $Metadata = shift;
     # Check copyright tags and skip results the user cannot use      # Check copyright tags and skip results the user cannot use
Line 1550  sub copyright_check { Line 1569  sub copyright_check {
     return 1;      return 1;
 }  }
   
   
   ######################################################################
   ######################################################################
   
   =pod
   
   =item &ensure_db_and_table
   
   Ensure we can get lonmysql to connect to the database and the table we
   need exists.
   
   Inputs: $r, table id
   
   Returns: undef on error, 1 if the table exists.
   
   =cut
   
   ######################################################################
   ######################################################################
   sub ensure_db_and_table {
       my ($r,$table) = @_;
       ##
       ## Sanity check the table id.
       ##
       if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
           $r->print("Unable to retrieve search results.  ".
                     "Unable to determine the table results were stored in.  ".
                     "</body></html>");
           return undef;
       }
       ##
       ## Make sure we can connect and the table exists.
       ##
       my $connection_result = &Apache::lonmysql::connect_to_db();
       if (!defined($connection_result)) {
           $r->print("Unable to connect to the MySQL database where your results".
                     " are stored. </body></html>");
           &Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to".
                                    " connect to database.");
           &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
           return undef;
       }
       my $table_check = &Apache::lonmysql::check_table($table);
       if (! defined($table_check)) {
           $r->print("A MySQL error has occurred.</form></body></html>");
           &Apache::lonnet::logthis("lonmysql was unable to determine the status".
                                    " of table ".$table);
           return undef;
       } elsif (! $table_check) {
           $r->print("The table of results could not be found.");
           &Apache::lonnet::logthis("The user requested a table, ".$table.
                                    ", that could not be found.");
           return undef;
       }
       return 1;
   }
   
   ######################################################################
   ######################################################################
   
   =pod
   
   =item &print_sort_form
   
   =cut
   
   ######################################################################
   ######################################################################
   sub print_sort_form {
       my ($r,$pretty_query_string) = @_;
       ##
       my %SortableFields = 
           (id        => 'Default',
            title     => 'Title',
            author    => 'Author',
            subject   => 'Subject',
            url       => 'URL',
            version   => 'Version Number',
            mime      => 'Mime type',
            lang      => 'Language',
            owner     => 'Owner/Publisher',
            copyright => 'Copyright',
            hostname  => 'Host',
            creationdate     => 'Creation Date',
            lastrevisiondate => 'Revision Date',
        );
       ##
       my $table = $ENV{'form.table'};
       return if (! &ensure_db_and_table($r,$table));
       ##
       ## Get the number of results 
       ##
       my $total_results = &Apache::lonmysql::number_of_rows($table);
       if (! defined($total_results)) {
           $r->print("A MySQL error has occurred.</form></body></html>");
           &Apache::lonnet::logthis("lonmysql was unable to determine the number".
                                    " of rows in table ".$table);
           &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
           return;
       }
       my $result;
       $result.=<<END;
   <html>
   <head>
   <script>
       function change_sort() {
           var newloc = "/adm/searchcat?phase=results";
           newloc += "&persistent_db_id=$ENV{'form.persistent_db_id'}";
           newloc += "&sortby=";
           newloc += document.forms.statusform.elements.sortby.value;
           parent.resultsframe.location= newloc;
       }
   </script>
   <title>Results</title>
   </head>
   $bodytag
   <form name="statusform" action="" method="post">
   <input type="hidden" name="Queue" value="" />
   END
   
   #<h2>Sort Results</h2>
   #Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();">
   #    $ENV{'form.sortby'} = 'id' if (! defined($ENV{'form.sortby'}));
   #    foreach (keys(%SortableFields)) {
   #        $result.="<option name=\"$_\"";
   #        if ($_ eq $ENV{'form.sortby'}) {
   #            $result.=" selected ";
   #        }
   #        $result.=" >$SortableFields{$_}</option>\n";
   #    }
   #    $result.="</select>\n";
       my $revise = &revise_button();
       $result.=<<END;
   <p>
   There are $total_results matches to your query. $revise
   </p><p>
   Search:$pretty_query_string
   </p>
   </form>
   </body>
   </html>
   END
       $r->print($result);
       return;
   }
   
 #####################################################################  #####################################################################
 #####################################################################  #####################################################################
   
Line 1573  my @DataOrder = qw/id title author subje Line 1738  my @DataOrder = qw/id title author subje
     abstract mime lang owner copyright creationdate lastrevisiondate hostname/;      abstract mime lang owner copyright creationdate lastrevisiondate hostname/;
   
 my %Datatypes =   my %Datatypes = 
     ( id        =>{ type         => 'INT',      ( id        =>{ type         => 'MEDIUMINT',
                     restrictions => 'NOT NULL',                      restrictions => 'UNSIGNED NOT NULL',
                     primary_key  => 'yes',                      primary_key  => 'yes',
                     auto_inc     => 'yes'                      auto_inc     => 'yes'
                     },                      },
Line 1599  my %Datatypes = Line 1764  my %Datatypes =
       );        );
   
 my @Fullindicies =   my @Fullindicies = 
     qw/title author subject abstract mime language owner copyright/;      qw/title/;
   #    qw/title author subject abstract mime language owner copyright/;
           
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
Line 1690  sub update_seconds { Line 1856  sub update_seconds {
   
 =pod  =pod
   
   =item &revise_button
   
   Inputs: None
   
   Returns: html string for a 'revise search' button.
   
   =cut
   
   ######################################################################
   ######################################################################
   sub revise_button {
       my $revise_phase = 'disp_basic';
       $revise_phase = 'disp_adv' if ($ENV{'form.searchmode'} eq 'advanced');
       my $newloc = '/adm/searchcat'.
           '?persistent_db_id='.$ENV{'form.persistent_db_id'}.
               '&phase='.$revise_phase;
       my $result = qq{<input type="button" value="Revise search" name="revise"} .
           qq{ onClick="parent.location='$newloc';" /> };
       return $result;
   }
   
   ######################################################################
   ######################################################################
   
   =pod
   
 =item &run_search   =item &run_search 
   
 =cut  =cut
Line 1703  sub run_search { Line 1895  sub run_search {
     # Timing variables      # Timing variables
     #      #
     my $starttime = time;      my $starttime = time;
     my $max_time  = 120;  # seconds for the search to complete      my $max_time  = 30;  # seconds for the search to complete
     #      #
     # Print run_search header      # Print run_search header
     #      #
     $r->print("<html><head><title>Search Status</title></head><body>");      $r->print(<<END);
     $r->print("Search: ".$pretty_string."\n");  <html>
   <head><title>Search Status</title></head>
   $bodytag
   <form name="statusform" action="" method="post">
   <input type="hidden" name="Queue" value="" />
   END
       # Check to see if $pretty_string has more than one carriage return.
       # Assume \n s are following <br /> s and truncate the value.
       # (there is probably a better way)...
       my @Lines = split /<br \/>/,$pretty_string;
       if (@Lines > 2) {
           $pretty_string = join '<br \>',(@Lines[0..2],'....<br />');
       }
       $r->print("Search: ".$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($serverlist)) {
         @Servers_to_contact = @$serverlist;          if (ref($serverlist) eq 'ARRAY') {
               @Servers_to_contact = @$serverlist;
           } else {
               @Servers_to_contact = ($serverlist);
           }
     } else {      } else {
         @Servers_to_contact = sort(keys(%Apache::lonnet::libserv));          @Servers_to_contact = sort(keys(%Apache::lonnet::libserv));
     }      }
Line 1746  sub run_search { Line 1955  sub run_search {
     my $hitcountsum;      my $hitcountsum;
     my $server;       my $server; 
     my $status;      my $status;
       my $revise = &revise_button();
     $r->print(<<END);      $r->print(<<END);
 <form name="statusform" action="" method="post">  
 <input type="hidden" name="Queue" value="" />  
 <table>  <table>
 <tr><th>Status</th><th>Total Matches</th><th>Time Remaining</th></tr>  <tr><th>Status</th><th>Total Matches</th><th>Time Remaining</th><th></th></tr>
 <tr>  <tr>
 <td><input type="text" name="status"  value="" size="30" /></td>  <td><input type="text" name="status"  value="" size="30" /></td>
 <td><input type="text" name="count"   value="" size="10" /></td>  <td><input type="text" name="count"   value="" size="10" /></td>
 <td><input type="text" name="seconds" value="" size="8" /></td>  <td><input type="text" name="seconds" value="" size="8" /></td>
   <td>$revise</td>
 </tr>  </tr>
 </table>  </table>
 </form>  </form>
Line 1851  END Line 2060  END
         }          }
     }      }
     &update_status($r,'Search Complete'.$server);      &update_status($r,'Search Complete'.$server);
       &update_seconds($r,0);
     &Apache::lonmysql::disconnect_from_db();      &Apache::lonmysql::disconnect_from_db();
     # Let the user know  
     #  
     # 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.  
     $r->print("<b>Search Completed.</b>&nbsp;&nbsp;");  
     if ($hitcountsum) {  
         $r->print($hitcountsum." matches were found.");  
     } else {  
         $r->print("There were no successful matches to your query.");  
     }  
     $r->print("</body></html>");      $r->print("</body></html>");
       if ($ENV{'form.catalogmode'} ne 'groupsearch') {
           $r->print("<script>".
                         "window.location='/adm/searchcat?".
                         "phase=sort&".
                         "persistent_db_id=$ENV{'form.persistent_db_id'}';".
                     "</script>");
       }
     return;      return;
 }  }
   
Line 1883  sub prev_next_buttons { Line 2092  sub prev_next_buttons {
     ##      ##
     ## Prev      ## Prev
     my $prev_min = $current_min - $show;      my $prev_min = $current_min - $show;
     $prev_min = 0 if $prev_min < 0;      $prev_min = 1 if $prev_min < 1;
     if ($prev_min < $current_min) {      if ($prev_min < $current_min) {
         $links .= qq{          $links .= qq{
 <a href="/adm/searchcat?$parms&start=$prev_min&show=$show">prev</a>  <a href="/adm/searchcat?$parms&start=$prev_min&show=$show">prev</a>
Line 1953  sub display_results { Line 2162  sub display_results {
     ## Prepare the table for querying      ## Prepare the table for querying
     ##      ##
     my $table = $ENV{'form.table'};      my $table = $ENV{'form.table'};
     my $connection_result = &Apache::lonmysql::connect_to_db();      return if (! &ensure_db_and_table($r,$table));
     if (!defined($connection_result)) {  
         $r->print(&Apache::lonmysql::get_error());  
     }  
     my $table_check = &Apache::lonmysql::check_table($table);  
     if (! defined($table_check)) {  
         $r->print("A MySQL error has occurred.</form></body></html>");  
         &Apache::lonnet::logthis("lonmysql was unable to determine the status".  
                                  " of table ".$table);  
         return;  
     } elsif (! $table_check) {  
         $r->print("The table of results could not be found.");  
         &Apache::lonnet::logthis("The user requested a table, ".$table.  
                                  ", that could not be found.");  
         return;  
     }  
     ##      ##
     ## Get the number of results       ## Get the number of results 
     ##      ##
Line 1978  sub display_results { Line 2172  sub display_results {
         &Apache::lonnet::logthis("lonmysql was unable to determine the number".          &Apache::lonnet::logthis("lonmysql was unable to determine the number".
                                  " of rows in table ".$table);                                   " of rows in table ".$table);
         &Apache::lonnet::logthis(&Apache::lonmysql::get_error());          &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
         &Apache::lonnet::logthis(&Apache::lonmysql::get_debug());  
         return;          return;
     }      }
     ##      ##
     ## Determine how many results we need to get      ## Determine how many results we need to get
     ##      ##
     $ENV{'form.show'} = 20;      $ENV{'form.start'} = 1      if (! exists($ENV{'form.start'}));
     $ENV{'form.start'} = 0      if (! exists($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'};
     my $max;      my $max;
     if ($ENV{'form.show'} eq 'all') {      if ($ENV{'form.show'} eq 'all') {
         $max = $total_results ;          $max = $total_results ;
     } else {      } else {
         $max = $min + $ENV{'form.show'};          $max = $min + $ENV{'form.show'} - 1;
         $max = $total_results if ($max > $total_results);          $max = $total_results if ($max > $total_results);
     }      }
     ##      ##
Line 2018  sub display_results { Line 2210  sub display_results {
     ## Get results from MySQL table      ## Get results from MySQL table
     ##      ##
     my @Results = &Apache::lonmysql::get_rows($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.
     ##      ##
Line 2312  sub search_results_header { Line 2504  sub search_results_header {
  parent.close();   parent.close();
     }      }
     function changeTitle(val) {      function changeTitle(val) {
  if (opener.inf.document.forms.resinfo.elements.t) {   if (parent.opener.inf.document.forms.resinfo.elements.t) {
     opener.inf.document.forms.resinfo.elements.t.value=val;      parent.opener.inf.document.forms.resinfo.elements.t.value=val;
  }   }
     }      }
     function changeURL(val) {      function changeURL(val) {
  if (opener.inf.document.forms.resinfo.elements.u) {   if (parent.opener.inf.document.forms.resinfo.elements.u) {
     opener.inf.document.forms.resinfo.elements.u.value=val;      parent.opener.inf.document.forms.resinfo.elements.u.value=val;
  }   }
     }      }
 </script>  </script>
Line 2364  SCRIPT Line 2556  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 2376  END Line 2569  END
 sub search_status_header {  sub search_status_header {
     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 2386  sub results_link { Line 2579  sub results_link {
     my $basic_link   = "/adm/searchcat?"."&table=".$ENV{'form.table'}.      my $basic_link   = "/adm/searchcat?"."&table=".$ENV{'form.table'}.
         "&persistent_db_id=".$ENV{'form.persistent_db_id'};          "&persistent_db_id=".$ENV{'form.persistent_db_id'};
     my $results_link = $basic_link."&phase=results".      my $results_link = $basic_link."&phase=results".
         "&pause=10"."&start=0"."&show=20";          "&pause=1"."&start=1";
     return $results_link;      return $results_link;
 }  }
   
Line 2625  sub filled { Line 2818  sub filled {
   
 =item &output_blank_field_error()  =item &output_blank_field_error()
   
   Output a complete page that indicates the user has not filled in enough
   information to do a search.
   
   Inputs: $r (Apache request handle), $closebutton, $parms.
   
   Returns: nothing
   
   $parms is extra information to include in the 'Revise search request' link.
   
 =cut  =cut
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub output_blank_field_error {  sub output_blank_field_error {
     my ($r,$closebutton)=@_;      my ($r,$closebutton,$parms)=@_;
     # 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 2639  sub output_blank_field_error { Line 2841  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">
 $hidden_fields  $hidden_fields
 <a href="/adm/searchcat?persistent_db_id=$ENV{'form.persistent_db_id'}"  <a href="/adm/searchcat?$parms&persistent_db_id=$ENV{'form.persistent_db_id'}"
 >Revise search request</a>&nbsp;  >Revise search request</a>&nbsp;
 $closebutton  $closebutton
 <hr />  <hr />
 <h3>Helpful Message</h3>  <h3>Unactionable search query.</h3>
 <p>  <p>
 Incorrect search query due to blank entry fields.  You did not fill in enough information for the search to be started.
 You need to fill in the relevant  You need to fill in relevant fields on the search page in order 
 fields on the search page in order for a query to be  for a query to be processed.
 processed.  
 </p>  </p>
 </body>  </body>
 </html>  </html>
Line 2687  sub output_date_error { Line 2888  sub output_date_error {
 <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 2696  $hidden_fields Line 2897  $hidden_fields
 onClick='this.form.submit();' />  onClick='this.form.submit();' />
 $closebutton  $closebutton
 <hr />  <hr />
 <h3>Helpful Message</h3>  <h3>Error</h3>
 <p>  <p>
 $message  $message
 </p>  </p>

Removed from v.1.150  
changed lines
  Added in v.1.157


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