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Diff for /loncom/interface/lonsearchcat.pm between versions 1.125 and 1.130

version 1.125, 2002/06/20 19:43:50 version 1.130, 2002/06/26 16:04:13
Line 67  search (on a server basis) is displayed Line 67  search (on a server basis) is displayed
 ###############################################################################  ###############################################################################
 ###############################################################################  ###############################################################################
   
   ###############################################################################
 ##                                                                           ##  ##                                                                           ##
 ## ORGANIZATION OF THIS PERL MODULE                                          ##  ## ORGANIZATION OF THIS PERL MODULE                                          ##
 ##                                                                           ##  ##                                                                           ##
 ## 1. Modules used by this module                                            ##  ## 1. Modules used by this module                                            ##
 ## 2. Choices for different output views (detailed, summary, xml, etc)       ##  ## 2. Variables used throughout the module                                   ##
 ## 3. BEGIN block (to be run once after compilation)                         ##  ## 3. handler subroutine called via Apache and mod_perl                      ##
 ## 4. Handling routine called via Apache and mod_perl                        ##  ## 4. Other subroutines                                                      ##
 ## 5. Other subroutines                                                      ##  
 ##                                                                           ##  ##                                                                           ##
 ###############################################################################  ###############################################################################
   
Line 101  use Apache::loncommon(); Line 101  use Apache::loncommon();
   
 =over 4  =over 4
   
 =item %hostdomains  
   
 matches host name to host domain  
   
 =item %hostips  
   
 matches host name to host ip  
   
 =item %hitcount  
   
 stores number of hits per host  
   
 =item $closebutton  =item $closebutton
   
 button that closes the search window  button that closes the search window
Line 137  used in &handler() and is also used in & Line 125  used in &handler() and is also used in &
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
   
 # -- information holders  
 my %hostdomains; # matches host name to host domain  
 my %hostips;     # matches host name to host ip  
 my %hitcount;    # stores number of hits per host  
   
 # -- dynamically rendered interface components  # -- dynamically rendered interface components
 my $closebutton;  # button that closes the search window  my $closebutton;  # button that closes the search window
 my $importbutton; # button to take the selected results and go to group sorting  my $importbutton; # button to take the selected results and go to group sorting
   
 # -- miscellaneous variables  # -- miscellaneous variables
 my $yourself; # allows for quickly limiting to oneself  
 my %hash;     # database hash  my %hash;     # database hash
   my $diropendb = "";    # db file
 # ------------------------------------------ choices for different output views  
 # Detailed Citation View ---> sub detailed_citation_view  
 # Summary View ---> sub summary_view  
 # Fielded Format ---> sub fielded_format_view  
 # XML/SGML ---> sub xml_sgml_view  
   
 #------------------------------------------------------------- global variables  
 my $diropendb = "";  
 my $domain = "";  
   
 # ----------------------------------------------------------------------- BEGIN  
   
 =pod  
   
 =item BEGIN block  
   
 Load %hostdomains and %hostips with data from lonnet.pm.  Only library  
 servers are considered.  
   
 =cut  
   
 BEGIN {  
     foreach (keys (%Apache::lonnet::libserv)) {  
         $hostdomains{$_}=$Apache::lonnet::hostdom{$_};  
         $hostips{$_}=$Apache::lonnet::hostip{$_};  
     }  
 }  
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
Line 268  END Line 223  END
     ##      ##
     if ($ENV{'form.basicsubmit'} eq 'SEARCH') {      if ($ENV{'form.basicsubmit'} eq 'SEARCH') {
         # Perform basic search and give results          # Perform basic search and give results
  return &basicsearch($r,\%ENV,$hidden);   return &basicsearch($r,$hidden);
     } elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') {      } elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') {
         # Perform advanced search and give results          # Perform advanced search and give results
  return &advancedsearch($r,\%ENV,$hidden);   return &advancedsearch($r,$hidden);
     } elsif ($ENV{'form.reqinterface'} eq 'advanced') {      } elsif ($ENV{'form.reqinterface'} eq 'advanced') {
         # Output the advanced interface          # Output the advanced interface
         $r->print(&advanced_search_form($closebutton,$hidden));          $r->print(&advanced_search_form($closebutton,$hidden));
Line 318  sub basic_search_form{ Line 273  sub basic_search_form{
 $hidden  $hidden
 <h3>Basic Search</h3>  <h3>Basic Search</h3>
 <p>  <p>
 Enter terms or phrases separated by AND, OR, or NOT then press SEARCH below.  Enter terms or quoted phrases separated by AND, OR, or NOT 
   then press SEARCH below.
 </p>  </p>
 <p>  <p>
 <table>  <table>
Line 334  ENDDOCUMENT Line 290  ENDDOCUMENT
 <p>  <p>
 &nbsp;<input type="submit" name="basicsubmit" value='SEARCH' />&nbsp;  &nbsp;<input type="submit" name="basicsubmit" value='SEARCH' />&nbsp;
 $closebutton  $closebutton
 <!-- basic view selection -->  <!-- view selection -->
 <select name='basicviewselect'>  <select name="viewselect">
 <option value='Detailed Citation View' selected="true">  <option value="Detailed Citation View" selected="true" >Detailed Citation View</option>
 Detailed Citation View</option>  <option value="Summary View"  >Summary View</option>
 <option value='Summary View'>Summary View</option>  <option value="Fielded Format">Fielded Format</option>
 <option value='Fielded Format'>Fielded Format</option>  <option value="XML/SGML"      >XML/SGML</option>
 <option value='XML/SGML'>XML/SGML</option>  
 </select>  </select>
 <!-- end of basic view selection -->  <!-- end of view selection -->
 <input type="button" value="HELP" onClick="openhelp()" />  <input type="button" value="HELP" onClick="openhelp()" />
 </p>  </p>
 </form>  </form>
Line 367  Returns a scalar which holds html for th Line 322  Returns a scalar which holds html for th
   
 sub advanced_search_form{  sub advanced_search_form{
     my ($closebutton,$hidden) = @_;      my ($closebutton,$hidden) = @_;
       my $advanced_buttons = <<"END";
   <p>
   <input type="submit" name="advancedsubmit" value='SEARCH' />
   <input type="reset" name="reset" value='RESET' />
   $closebutton
   <input type="button" value="HELP" onClick="openhelp()" />
   </p>
   END
     my $scrout=<<"ENDHEADER";      my $scrout=<<"ENDHEADER";
 <html>  <html>
 <head>  <head>
Line 381  sub advanced_search_form{ Line 344  sub advanced_search_form{
 </head>  </head>
 <body bgcolor="#FFFFFF">  <body bgcolor="#FFFFFF">
 <img align='right' src='/adm/lonIcons/lonlogos.gif' />  <img align='right' src='/adm/lonIcons/lonlogos.gif' />
 <h1>Search Catalog</h1>  <h1>Advanced Catalog Search</h1>
   <hr />
   Enter terms or quoted phrases separated by search operators 
   such as AND, OR, or NOT.<br />
 <form method="post" action="/adm/searchcat">  <form method="post" action="/adm/searchcat">
   $advanced_buttons
 $hidden  $hidden
 <hr />  <table>
 <h3>Advanced Search</h3>  <tr><td><font color="#800000" face="helvetica"><b>VIEW:</b></font></td>
   <td>
   <!-- view selection -->
   <select name="viewselect" size ="1">
       <option value="Detailed Citation View" selected="true">Detailed Citation View</option>
       <option value="Summary View">Summary View</option>
       <option value="Fielded Format">Fielded Format</option>
       <option value="XML/SGML">XML/SGML</option>
   </select>
   <!-- end of view selection -->
   </td></tr>
 ENDHEADER  ENDHEADER
     $scrout.=&searchphrasefield('Limit by title','title',      $scrout.=&searchphrasefield('title','title',
  $ENV{'form.title'});   $ENV{'form.title'});
     $scrout.=&searchphrasefield('Limit by author','author',      $scrout.=&searchphrasefield('author','author',
  $ENV{'form.author'});   $ENV{'form.author'});
     $scrout.=&searchphrasefield('Limit by subject','subject',      $scrout.=&searchphrasefield('subject','subject',
  $ENV{'form.subject'});   $ENV{'form.subject'});
     $scrout.=&searchphrasefield('Limit by keywords','keywords',      $scrout.=&searchphrasefield('keywords','keywords',
  $ENV{'form.keywords'});   $ENV{'form.keywords'});
     $scrout.=&searchphrasefield('Limit by URL','url',      $scrout.=&searchphrasefield('URL','url',
  $ENV{'form.url'});   $ENV{'form.url'});
 #    $scrout.=&searchphrasefield('Limit by version','version',  #    $scrout.=&searchphrasefield('Limit by version','version',
 # $ENV{'form.version'});  # $ENV{'form.version'});
     $scrout.=&searchphrasefield('Limit by notes','notes',      $scrout.=&searchphrasefield('notes','notes',
  $ENV{'form.notes'});   $ENV{'form.notes'});
     $scrout.=&searchphrasefield('Limit by abstract','abstract',      $scrout.=&searchphrasefield('abstract','abstract',
  $ENV{'form.abstract'});   $ENV{'form.abstract'});
     $ENV{'form.mime'}='any' unless length($ENV{'form.mime'});      # Hack - an empty table row.
     $scrout.=&selectbox('Limit by MIME type','mime',      $scrout.="<tr><td>&nbsp;</td><td>&nbsp;</td></tr>\n";
  $ENV{'form.mime'},      $scrout.=&searchphrasefield('file<br />extension','mime',
  'any','Any type',                          $ENV{'form.mime'});
  \&{Apache::loncommon::filedescriptionex},      $scrout.="<tr><td>&nbsp;</td><td>&nbsp;</td></tr>\n";
  (&Apache::loncommon::fileextensions));      $scrout.=&searchphrasefield('publisher<br />owner','owner',
    $ENV{'form.owner'});
       $scrout.="</table>\n";
   #    $ENV{'form.mime'}='any' unless length($ENV{'form.mime'});
   #    $scrout.=&selectbox('Limit by MIME type','mime',
   # $ENV{'form.mime'},
   # 'any','Any type',
   # \&{Apache::loncommon::filedescriptionex},
   # (&Apache::loncommon::fileextensions));
     $ENV{'form.language'}='any' unless length($ENV{'form.language'});      $ENV{'form.language'}='any' unless length($ENV{'form.language'});
     $scrout.=&selectbox('Limit by language','language',      $scrout.=&selectbox('Limit by language','language',
  $ENV{'form.language'},'any','Any Language',   $ENV{'form.language'},'any','Any Language',
Line 455  LASTREVISIONDATEEND Line 440  LASTREVISIONDATEEND
  $ENV{'form.lastrevisiondateend_year'},   $ENV{'form.lastrevisiondateend_year'},
  );   );
     $scrout.='</p>';      $scrout.='</p>';
     $scrout.=&searchphrasefield('Limit by publisher/owner','owner',  
  $ENV{'form.owner'});  
     $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'});      $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'});
     $scrout.=&selectbox('Limit by copyright/distribution','copyright',      $scrout.=&selectbox('Limit by copyright/distribution','copyright',
  $ENV{'form.copyright'},   $ENV{'form.copyright'},
Line 485  in a fielded listing for each record res Line 468  in a fielded listing for each record res
 CUSTOMSHOW  CUSTOMSHOW
     $scrout.=&simpletextfield('customshow',$ENV{'form.customshow'});      $scrout.=&simpletextfield('customshow',$ENV{'form.customshow'});
     $scrout.=<<ENDDOCUMENT;      $scrout.=<<ENDDOCUMENT;
 <p>  $advanced_buttons
 <input type="submit" name="advancedsubmit" value='SEARCH' />  
 <input type="reset" name="reset" value='RESET' />  
 $closebutton  
 <!-- advance view select -->  
 <select name='advancedviewselect'>  
 <option value='Detailed Citation View' selected="true">  
 Detailed Citation View</option>  
 <option value='Summary View'>Summary View</option>  
 <option value='Fielded Format'>Fielded Format</option>  
 <option value='XML/SGML'>XML/SGML</option>  
 </select>  
 <!-- end of advanced view select -->  
 <input type="button" value="HELP" onClick="openhelp()" />  
 </p>  
 </form>  </form>
 </body>  </body>
 </html>  </html>
Line 515  ENDDOCUMENT Line 484  ENDDOCUMENT
 =item &make_persistent()   =item &make_persistent() 
   
 Returns a scalar which holds the current ENV{'form.*'} values in  Returns a scalar which holds the current ENV{'form.*'} values in
 a 'hidden' html input tag.    a 'hidden' html input tag.  This allows search interface information
   to be somewhat persistent.
   
 =cut  =cut
   
Line 573  is where the $name and $value are used) Line 543  is where the $name and $value are used)
   
 =item &dateboxes()  =item &dateboxes()
   
   Returns html selection form elements for the specification of 
   the day, month, and year.
   
 =item &selectbox()  =item &selectbox()
   
   Returns a scalar containing an html <select> form.  
   
   Inputs: 
   
   =over 4
   
   =item $title 
   
   Printed above the select box, in uppercase.
   
   =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.
   
   =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
   
 =back   =back 
   
 =cut  =cut
Line 592  sub simpletextfield { Line 606  sub simpletextfield {
 sub simplecheckbox {  sub simplecheckbox {
     my ($name,$value)=@_;      my ($name,$value)=@_;
     my $checked='';      my $checked='';
     $checked="CHECKED" if $value eq 'on';      $checked="checked" if $value eq 'on';
     return '<input type="checkbox" name="'.$name.'" '. $checked . ' />';      return '<input type="checkbox" name="'.$name.'" '. $checked . ' />';
 }  }
   
 sub searchphrasefield {  sub searchphrasefield {
     my ($title,$name,$value)=@_;      my ($title,$name,$value)=@_;
     my $instruction=<<END;  
 Enter terms or phrases separated by search operators such as AND, OR, or NOT.  
 END  
     my $uctitle=uc($title);      my $uctitle=uc($title);
     return "\n".      return '<tr><td><font color="#800000" face="helvetica">'.
         '<p><font color="#800000" face="helvetica"><b>'.$uctitle.':</b>'.          '<b>'.$uctitle.':&nbsp;</b></font></td><td>'.
         "</FONT> $instruction<br />".&simpletextfield($name,$value,80);                  &simpletextfield($name,$value,50)."</td></tr>\n";
 }  }
   
 sub dateboxes {  sub dateboxes {
Line 652  END Line 663  END
 }  }
   
 sub selectbox {  sub selectbox {
     my ($title,$name,$value,$anyvalue,$anytag,$functionref,@idlist)=@_;      my ($title,$name,$default,$anyvalue,$anytag,$functionref,@idlist)=@_;
       if (! defined($functionref)) { $functionref = sub { $_[0]}; }
     my $uctitle=uc($title);      my $uctitle=uc($title);
     my $selout="\n".'<p><font color="#800000" face="helvetica">'.      my $selout="\n".'<p><font color="#800000" face="helvetica">'.
         '<b>'.$uctitle.':</b></font><br /><select name="'.$name.'">';          '<b>'.$uctitle.':</b></font><br /><select name="'.$name.'">';
     foreach ($anyvalue,@idlist) {      foreach ($anyvalue,@idlist) {
         $selout.='<option value="'.$_.'"';          $selout.='<option value="'.$_.'"';
         if ($_ eq $value and !/^any$/) {          if ($_ eq $default and !/^any$/) {
     $selout.=' selected >'.&{$functionref}($_).'</option>';      $selout.=' selected >'.&{$functionref}($_).'</option>';
  }   }
  elsif ($_ eq $value and /^$anyvalue$/) {   elsif ($_ eq $default and /^$anyvalue$/) {
     $selout.=' selected >'.$anytag.'</option>';      $selout.=' selected >'.$anytag.'</option>';
  }   }
         else {$selout.='>'.&{$functionref}($_).'</option>';}          else {$selout.='>'.&{$functionref}($_).'</option>';}
     }      }
     return $selout.'</select>';      return $selout.'</select></p>';
 }  }
   
 ######################################################################  ######################################################################
Line 674  sub selectbox { Line 686  sub selectbox {
   
 =pod   =pod 
   
 =item &advancedsearch()   =item &advancedsearch()
   
   Parse advanced search results.
   
 =cut  =cut
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub advancedsearch {  sub advancedsearch {
     my ($r,$envhash,$hidden)=@_;      my ($r,$hidden)=@_;
     my %ENV=%{$envhash};  
     my $fillflag=0;      my $fillflag=0;
     # Clean up fields for safety      # Clean up fields for safety
     for my $field ('title','author','subject','keywords','url','version',      for my $field ('title','author','subject','keywords','url','version',
Line 719  sub advancedsearch { Line 732  sub advancedsearch {
     my @queries;      my @queries;
     # 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 $field ('title','author','subject','notes','abstract','url',
        'keywords','version','owner') {         'keywords','version','owner','mime') {
  if ($ENV{'form.'.$field}) {   if ($ENV{'form.'.$field}) {
     push @queries,&build_SQL_query($field,$ENV{'form.'.$field});      push @queries,&build_SQL_query($field,$ENV{'form.'.$field});
  }   }
Line 728  sub advancedsearch { Line 741  sub advancedsearch {
     if ($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 \"$ENV{'form.language'}\")";
     }      }
     if ($ENV{'form.mime'} and $ENV{'form.mime'} ne 'any') {  #    if ($ENV{'form.mime'} and $ENV{'form.mime'} ne 'any') {
  push @queries,"(mime like \"$ENV{'form.mime'}\")";  # push @queries,"(mime like \"$ENV{'form.mime'}\")";
     }  #    }
     if ($ENV{'form.copyright'} and $ENV{'form.copyright'} ne 'any') {      if ($ENV{'form.copyright'} and $ENV{'form.copyright'} ne 'any') {
  push @queries,"(copyright like \"$ENV{'form.copyright'}\")";   push @queries,"(copyright like \"$ENV{'form.copyright'}\")";
     }      }
Line 784  sub advancedsearch { Line 797  sub advancedsearch {
     $reply=&Apache::lonnet::metadata_query($query,      $reply=&Apache::lonnet::metadata_query($query,
    $customquery,$customshow);     $customquery,$customshow);
  }   }
  &output_results('Advanced',$r,$envhash,$customquery,$reply,$hidden);   &output_results('Advanced',$r,$customquery,$reply,$hidden);
     }          return OK;
     elsif ($customquery) {      } elsif ($customquery) {
  my $reply; # reply hash reference   my $reply; # reply hash reference
  $reply=&Apache::lonnet::metadata_query('',   $reply=&Apache::lonnet::metadata_query('',
        $customquery,$customshow);         $customquery,$customshow);
  &output_results('Advanced',$r,$envhash,$customquery,$reply,$hidden);   &output_results('Advanced',$r,$customquery,$reply,$hidden);
           return OK;
     }      }
     # should not get to this point      # should not get to this point
     return 'Error.  Should not have gone to this point.';      return 'Error.  Should not have gone to this point.';
Line 803  sub advancedsearch { Line 817  sub advancedsearch {
   
 =item &basicsearch()   =item &basicsearch() 
   
   Parse basic search form.
   
 =cut  =cut
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub basicsearch {  sub basicsearch {
     my ($r,$envhash,$hidden)=@_;      my ($r,$hidden)=@_;
     my %ENV=%{$envhash};  
     # 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 837  sub basicsearch { Line 852  sub basicsearch {
     $query=&build_SQL_query('concat('.$concatarg.')',$ENV{'form.'.'basicexp'});      $query=&build_SQL_query('concat('.$concatarg.')',$ENV{'form.'.'basicexp'});
   
     # Get reply (either a hash reference to filehandles or bad connection)      # Get reply (either a hash reference to filehandles or bad connection)
   #    &Apache::lonnet::logthis("metadata query started:".time);
     my $reply=&Apache::lonnet::metadata_query('select * from metadata where '.$query);      my $reply=&Apache::lonnet::metadata_query('select * from metadata where '.$query);
   #    &Apache::lonnet::logthis("metadata query finished:".time);
     # Output search results      # Output search results
   
     &output_results('Basic',$r,$envhash,$query,$reply,$hidden);      &output_results('Basic',$r,$query,$reply,$hidden);
   
     return OK;      return OK;
 }  }
Line 854  sub basicsearch { Line 870  sub basicsearch {
   
 =item &build_SQL_query()   =item &build_SQL_query() 
   
   Builds a SQL query string from a logical expression with AND/OR keywords
   using Text::Query and &recursive_SQL_query_builder()
   
 =cut  =cut
   
 ######################################################################  ######################################################################
Line 876  sub build_SQL_query { Line 895  sub build_SQL_query {
   
 =item &build_custommetadata_query()   =item &build_custommetadata_query() 
   
   Constructs a custom metadata query using a rather heinous regular
   expression.
   
 =cut  =cut
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub build_custommetadata_query {  sub build_custommetadata_query {
     my ($field_name,$logic_statement)=@_;      my ($field_name,$logic_statement)=@_;
     &Apache::lonnet::logthis("Entered build_custommetadata_query:".  
                              $field_name.':'.$logic_statement);  
     my $q=new Text::Query('abc',      my $q=new Text::Query('abc',
   -parse => 'Text::Query::ParseAdvanced',    -parse => 'Text::Query::ParseAdvanced',
   -build => 'Text::Query::BuildAdvancedString');    -build => 'Text::Query::BuildAdvancedString');
Line 898  sub build_custommetadata_query { Line 918  sub build_custommetadata_query {
                    \*$2\[\^\\<\]?#           *wordtwo[^\<]                     \*$2\[\^\\<\]?#           *wordtwo[^\<]
                    \*\\<\\\/$1\\>?#                        *\<\/wordone\>                     \*\\<\\\/$1\\>?#                        *\<\/wordone\>
                    /g;                     /g;
     &Apache::lonnet::logthis("match expression: ".$matchexp);  
     return $matchexp;      return $matchexp;
 }  }
   
Line 909  sub build_custommetadata_query { Line 928  sub build_custommetadata_query {
   
 =item &recursive_SQL_query_build()   =item &recursive_SQL_query_build() 
   
   Recursively constructs an SQL query.  Takes as input $dkey and $pattern.
   
 =cut  =cut
   
 ######################################################################  ######################################################################
Line 953  sub recursive_SQL_query_build { Line 974  sub recursive_SQL_query_build {
   
 =item &build_date_queries()   =item &build_date_queries() 
   
   Builds a SQL logic query to check time/date entries.
   Also reports errors (check for /^Incorrect/).
   
 =cut  =cut
   
 ######################################################################  ######################################################################
Line 1023  contacted, etc.) Line 1047  contacted, etc.)
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub output_results {  sub output_results {
   #    &Apache::lonnet::logthis("output_results:".time);
     my $fnum; # search result counter      my $fnum; # search result counter
     my ($mode,$r,$envhash,$query,$replyref,$hidden)=@_;      my ($mode,$r,$query,$replyref,$hidden)=@_;
     my %ENV=%{$envhash};  
     my %rhash=%{$replyref};      my %rhash=%{$replyref};
     my $compiledresult='';      my $compiledresult='';
     my $timeremain=300; # (seconds)      my $timeremain=300; # (seconds)
     my $elapsetime=0;      my $elapsetime=0;
     my $resultflag=0;      my $resultflag=0;
     my $tflag=1;      my $tflag=1;
       my $viewselect=$ENV{'form.viewselect'};
     #      #
     # make query information persistent to allow for subsequent revision      # make query information persistent to allow for subsequent revision
     my $persistent=&make_persistent();      my $persistent=&make_persistent();
     # spit out the generic header      # spit out the results header
     $r->print(&search_results_header());      $r->print(&search_results_header($mode));
     $r->rflush();      $r->rflush();
     # begin showing the cataloged results      # begin showing the cataloged results
     $r->print(<<CATALOGBEGIN);      my $action = "/adm/searchcat";
 </head>      if ($mode eq 'Basic') { 
 <body bgcolor="#ffffff">          $action .= "?reqinterface=basic";
 <img align=right src=/adm/lonIcons/lonlogos.gif>      } elsif ($mode eq 'Advanced') {
 <h1>Search Catalog</h1>          $action .= "?reqinterface=advanced";
 CATALOGBEGIN      }
         $r->print(<<CATALOGCONTROLS);      $r->print(<<CATALOGCONTROLS);
 <form name='results' method="post" action="/adm/searchcat">  <form name='results' method="post" action="$action">
 $hidden  $hidden
 <input type='hidden' name='acts' value='' />  <input type='hidden' name='acts' value='' />
 <input type='button' value='Revise search request'  <input type='button' value='Revise search request'
Line 1055  $importbutton Line 1080  $importbutton
 $closebutton  $closebutton
 $persistent  $persistent
 <hr />  <hr />
 <h3>Search Query</h3>  
 CATALOGCONTROLS  CATALOGCONTROLS
     #      #
     # Remind them what they searched for  
     #  
     if ($mode eq 'Basic') {  
  $r->print('<p><b>Basic search:</b> '.$ENV{'form.basicexp'}.'</p>');  
     } elsif ($mode eq 'Advanced') {  
  $r->print('<p><b>Advanced search</b> '.$query.'</p>');  
     }  
     $r->print('<h3>Search Results</h3>');  
     $r->rflush();  
     #  
     # make the pop-up window for status      # make the pop-up window for status
     #      #
     $r->print(&make_popwin(%rhash));      $r->print(&make_popwin(%rhash));
Line 1088  CATALOGCONTROLS Line 1102  CATALOGCONTROLS
       ## (within the foreach loop below).        ## (within the foreach loop below).
       ##        ##
       foreach my $rkey (sort keys %rhash) {        foreach my $rkey (sort keys %rhash) {
   #        &Apache::lonnet::logthis("Server $rkey:".time);
  $servercount++;   $servercount++;
  $tflag=1;  
  $compiledresult='';   $compiledresult='';
  my $hostname=$rkey;  
  my $reply=$rhash{$rkey};   my $reply=$rhash{$rkey};
  my @results;   my @results;
  if ($reply eq 'con_lost') {   if ($reply eq 'con_lost') {
Line 1103  CATALOGCONTROLS Line 1116  CATALOGCONTROLS
     $reply=~/^([\.\w]+)$/;       $reply=~/^([\.\w]+)$/; 
     my $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1;      my $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1;
     $reply=~/(.*?)\_/;      $reply=~/(.*?)\_/;
     {              for (my $counter=0;$counter<2;$counter++) {
  my $temp=0;                  if (-e $replyfile && ! -e "$replyfile.end") {
       WLOOP: while (1) {                      &popwin_imgupdate($r,$rkey,"srvhalf.gif");
   if (-e $replyfile && $tflag) {                      &popwin_js($r,'popwin.hc["'.$rkey.'"]='.
       &popwin_imgupdate($r,$rkey,"srvhalf.gif");                                 '"still transferring..."'.';');
       &popwin_js($r,'popwin.hc["'.$rkey.'"]='.                  }
  '"still transferring..."'.';');                  # Are we finished transferring data?
       $tflag=0;                  if (-e "$replyfile.end") {
   }                      $serversleft--;
   if (-e "$replyfile.end") {                      delete $rhash{$rkey};
       $serversleft--;                      if (-s $replyfile) {
                       delete $rhash{$rkey};                          &popwin_imgupdate($r,$rkey,"srvgood.gif");
       if (-s $replyfile) {                          my $fh;
   &popwin_imgupdate($r,$rkey,"srvgood.gif");                          unless ($fh=Apache::File->new($replyfile)){ 
   my $fh=Apache::File->new($replyfile) or                               # Is it really appropriate to die on this error?
       ($r->print('ERROR: file '.                              $r->print('ERROR: file '.
  $replyfile.' cannot be opened') and                                        $replyfile.' cannot be opened');
        return OK);                              return OK;
   @results=<$fh> if $fh;                          }
   $hitcount{$rkey}=@results+0;                          @results=<$fh> if $fh;
   &popwin_js($r,'popwin.hc["'.$rkey.'"]='.                          my $hits =@results;
     $hitcount{$rkey}.';');                          &popwin_js($r,'popwin.hc["'.$rkey.'"]='.
   $hitcountsum+=$hitcount{$rkey};                                     $hits.';');
   &popwin_js($r,'popwin.document.forms.popremain.'.                          $hitcountsum+=$hits;
     'numhits.value='.$hitcountsum.';');                          &popwin_js($r,'popwin.document.forms.popremain.'.
       }                                     'numhits.value='.$hitcountsum.';');
       else {                      } else {
   &popwin_imgupdate($r,$rkey,"srvempty.gif");                          &popwin_imgupdate($r,$rkey,"srvempty.gif");
   &popwin_js($r,'popwin.hc["'.$rkey.'"]=0;');                          &popwin_js($r,'popwin.hc["'.$rkey.'"]=0;');
       }                      }
       last WLOOP;                      last;
   } # end of if ( -e "$replyfile.end")                  } # end of if ( -e "$replyfile.end")
   last WLOOP unless $timeremain;                  last unless $timeremain;
   sleep 1;    # wait for daemons to write files?                  sleep 1;    # wait for daemons to write files?
   $timeremain--;                  $timeremain--;
   $elapsetime++;                  $elapsetime++;
   last WLOOP if ($temp>1);                  &popwin_js($r,"popwin.document.popremain.".
   &popwin_js($r,"popwin.document.popremain.".                             "elapsetime.value=$elapsetime;");
        "elapsetime.value=$elapsetime;");  
   $temp++;  
       }  
     }      }
     &popwin_js($r,'popwin.document.whirly.'.      &popwin_js($r,'popwin.document.whirly.'.
        'src="/adm/lonIcons/lonanimend.gif";');         'src="/adm/lonIcons/lonanimend.gif";');
  } # end of if ($reply eq 'con_lost') else statement   } # end of if ($reply eq 'con_lost') else statement
  my $customshow='';          my %Fields = undef;     # Holds the data to be sent to the various 
  my $extrashow='';                                  # *_view routines.
  my @customfields;          my ($extrashow,$customfields,$customhash) = &handle_custom_fields(\@results);
  if ($ENV{'form.customshow'}) {          my @customfields = @$customfields;
     $customshow=$ENV{'form.customshow'};          my %customhash   = %$customhash;
     $customshow=~s/[^\w\s]//g;   untie %hash if (keys %hash);
     my @fields=map {"<font color=\"#008000\">$_:</font><!-- $_ -->"}           #
     split(/\s+/,$customshow);   if (! tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) {
     @customfields=split(/\s+/,$customshow);      $r->print('<html><head></head><body>Unable to tie hash to db '.
     if ($customshow) {                        'file</body></html>');
  $extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n";          } else {
     }  
  }  
  my $customdata='';  
  my %customhash;  
  foreach my $result (@results) {  
     if ($result=~/^(custom\=.*)$/) { # grab all custom metadata  
  my $tmp=$result;  
  $tmp=~s/^custom\=//;  
  my ($k,$v)=map {&Apache::lonnet::unescape($_);  
     } split(/\,/,$tmp);  
  $customhash{$k}=$v;  
     }  
  }  
  if (keys %hash) {  
     untie %hash;  
  }  
  if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) {  
     if ($ENV{'form.launch'} eq '1') {      if ($ENV{'form.launch'} eq '1') {
  &start_fresh_session();   &start_fresh_session();
     }      }
Line 1183  CATALOGCONTROLS Line 1176  CATALOGCONTROLS
  next if $result=~/^custom\=/;   next if $result=~/^custom\=/;
  chomp $result;   chomp $result;
  next unless $result;   next unless $result;
  my @fields=map                  %Fields = &parse_raw_result($result,$rkey);
  {&Apache::lonnet::unescape($_)}   $Fields{'extrashow'}=$extrashow;
  (split(/\,/,$result));  
  my ($title,$author,$subject,$url,$keywords,$version,  
     $notes,$abstract,$mime,$lang,  
     $creationdate,$lastrevisiondate,$owner,$copyright)=@fields;  
                 unless ($title =~ /^\s*$/ ) { $title='<i>Untitled</i>'; }  
  unless ($ENV{'user.adv'}) {  
     $keywords='<i>- not displayed -</i>';  
     $fields[4]=$keywords;  
     $notes='<i>- not displayed -</i>';  
     $fields[6]=$notes;  
     $abstract='<i>- not displayed -</i>';  
     $fields[7]=$abstract;  
     $subject='<i>- not displayed -</i>';  
     $fields[2]=$subject;  
  }  
   
  my $shortabstract=$abstract;  
  $shortabstract=substr($abstract,0,200).'...' if length($abstract)>200;  
  $fields[7]=$shortabstract;  
  my $shortkeywords=$keywords;  
  $shortkeywords=substr($keywords,0,200).'...' if length($keywords)>200;  
  $fields[4]=$shortkeywords;  
   
  my $extrashow2=$extrashow;  
  if ($extrashow) {   if ($extrashow) {
     foreach my $field (@customfields) {      foreach my $field (@customfields) {
  my $value='';   my $value='';
  if ($customhash{$url}=~/\<${field}[^\>]*\>(.*?)\<\/${field}[^\>]*\>/s) {   $value = $1 if ($customhash{$Fields{'url'}}=~/\<{$field}[^\>]*\>(.*?)\<\/{$field}[^\>]*\>/s);
             $value=$1;                          $Fields{'extrashow'}=~s/\<\!\-\- $field \-\-\>/ $value/g;
  }                      }
         $extrashow2=~s/\<\!\-\- $field \-\-\>/ $value/g;  
             }  
                 }                  }
                   $compiledresult.="\n<p>\n";
         $compiledresult.=<<END if $compiledresult or $servercount!=$servernum;                  if ($ENV{'form.catalogmode'} eq 'interactive') {
 <hr align='left' width='200' noshade />                      my $titleesc=$Fields{'title'};
 END                      $titleesc=~s/\'/\\'/; # '
                 $compiledresult.=<<END;                      $compiledresult.=<<END if ($ENV{'form.catalogmode'} eq 'interactive');
 <p>  
 END  
                if ($ENV{'form.catalogmode'} eq 'interactive') {  
    my $titleesc=$title;  
    $titleesc=~s/\'/\\'/; # '  
   
                    $compiledresult.=<<END if ($ENV{'form.catalogmode'} eq 'interactive');  
 <font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"  <font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"
 onClick="javascript:select_data('$titleesc','$url')">  onClick="javascript:select_data('$titleesc','$Fields{'url'}')">
 </font>  </font>
 <br />  <br />
 END  END
                 }                  }
                 if ($ENV{'form.catalogmode'} eq 'groupsearch') {                  if ($ENV{'form.catalogmode'} eq 'groupsearch') {
     $fnum+=0;      $fnum+=0;
     $hash{"pre_${fnum}_link"}=$url;      $hash{"pre_${fnum}_link"}=$Fields{'url'};
     $hash{"pre_${fnum}_title"}=$title;      $hash{"pre_${fnum}_title"}=$Fields{'title'};
     $compiledresult.=<<END;      $compiledresult.=<<END;
 <font size='-1'>  <font size='-1'>
 <input type="checkbox" name="returnvalues" value="SELECT"  <input type="checkbox" name="returnvalues" value="SELECT"
Line 1251  END Line 1211  END
 # <input type="hidden" name="url$fnum" value="$url" />  # <input type="hidden" name="url$fnum" value="$url" />
                     $fnum++;                      $fnum++;
  }   }
         my $httphost=$ENV{'HTTP_HOST'};  
   
         my $viewselect;  
         if ($mode eq 'Basic') {  
     $viewselect=$ENV{'form.basicviewselect'};  
  }  
         elsif ($mode eq 'Advanced') {  
     $viewselect=$ENV{'form.advancedviewselect'};  
  }  
   
         if ($viewselect eq 'Detailed Citation View') {          if ($viewselect eq 'Detailed Citation View') {
     $compiledresult.=&detailed_citation_view(@fields,      $compiledresult.=&detailed_citation_view
  $hostname,$httphost,                          (%Fields, hostname => $rkey );
  $extrashow2);  
  }   }
                 elsif ($viewselect eq 'Summary View') {                  elsif ($viewselect eq 'Summary View') {
     $compiledresult.=&summary_view(@fields,$hostname,$httphost,      $compiledresult.=&summary_view
        $extrashow2);                          (%Fields, hostname => $rkey );
         }          }
                 elsif ($viewselect eq 'Fielded Format') {                  elsif ($viewselect eq 'Fielded Format') {
     $compiledresult.=&fielded_format_view(@fields,$hostname,      $compiledresult.=&fielded_format_view
       $httphost,$extrashow2);                          (%Fields, hostname => $rkey );
         }          }
                 elsif ($viewselect eq 'XML/SGML') {                  elsif ($viewselect eq 'XML/SGML') {
     $compiledresult.=&xml_sgml_view(@fields,$hostname,$httphost,      $compiledresult.=&xml_sgml_view
  $extrashow2);                          (%Fields, hostname => $rkey );
  }   }
                       if ($compiledresult or $servercount!=$servernum) {
                       $compiledresult.="<hr align='left' width='200' noshade />";
                   }
             }              }
   
             untie %hash;              untie %hash;
         }          }
         else {  
     $r->print('<html><head></head><body>Unable to tie hash to db '.  
   'file</body></html>');  
  }  
  if ($compiledresult) {   if ($compiledresult) {
     $resultflag=1;      $resultflag=1;
               $r->print($compiledresult);
  }   }
   
  $r->print(<<RESULTS);  
 $compiledresult  
 RESULTS  
         my $percent=sprintf('%3.0f',($servercount/$servernum*100));          my $percent=sprintf('%3.0f',($servercount/$servernum*100));
     }        } # End of foreach loop over servers remaining
   }      }   # End of big loop - while($serversleft && $timeremain)
     unless ($resultflag) {      unless ($resultflag) {
         $r->print("\nThere were no results that matched your query\n");          $r->print("\nThere were no results that matched your query\n");
     }      }
 #    $r->print('<script type="text/javascript">'.'popwin.close()</script>'."\n"); $r->rflush();   #    $r->print('<script type="text/javascript">'.'popwin.close()</script>'."\n"); $r->rflush(); 
     $r->print(<<RESULTS);      $r->print("</body>\n</html>\n");
 </body>      return;
 </html>  }
 RESULTS  
   ###########################################################
   ###########################################################
   
   =pod
   
   =item &parse_raw_result()
   
   Takes a line from the file of results and parse it.  Returns a hash 
   with keys for the following fields:
   '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 
   lonnet function: 'language', 'cprtag', 'mimetag'.
   
   The 'title' field is set to "Untitled" if the title field is blank.
   
   'abstract' and 'keywords' are truncated to 200 characters.
   
   =cut
   
   ###########################################################
   ###########################################################
   sub parse_raw_result {
       my ($result,$hostname) = @_;
       # Check for a comma - if it is there then we do not need to unescape the
       # string.  There seems to be some kind of problem with some items in
       # the database - the entire string gets sent out unescaped...?
       unless ($result =~ /,/) {
           $result = &Apache::lonnet::unescape($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'});
       # 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'}) {
           $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;
   }
   
   ###########################################################
   ###########################################################
   
   =pod
   
   =item &handle_custom_fields()
   
   =cut
   
   ###########################################################
   ###########################################################
   sub handle_custom_fields {
       my @results = @{shift()};
       my $customshow='';
       my $extrashow='';
       my @customfields;
       if ($ENV{'form.customshow'}) {
           $customshow=$ENV{'form.customshow'};
           $customshow=~s/[^\w\s]//g;
           my @fields=map {
               "<font color=\"#008000\">$_:</font><!-- $_ -->";
           } split(/\s+/,$customshow);
           @customfields=split(/\s+/,$customshow);
           if ($customshow) {
               $extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n";
           }
       }
       my $customdata='';
       my %customhash;
       foreach my $result (@results) {
           if ($result=~/^(custom\=.*)$/) { # grab all custom metadata
               my $tmp=$result;
               $tmp=~s/^custom\=//;
               my ($k,$v)=map {&Apache::lonnet::unescape($_);
                           } split(/\,/,$tmp);
               $customhash{$k}=$v;
           }
       }
       return ($extrashow,\@customfields,\%customhash);
 }  }
   
 ######################################################################  ######################################################################
Line 1314  RESULTS Line 1378  RESULTS
   
 =item &search_results_header  =item &search_results_header
   
   Output the proper html headers and javascript code to deal with different 
   calling modes.
   
   Takes most inputs directly from %ENV, except $mode.  
   
   =over 4
   
   =item $mode is either (at this writing) 'Basic' or 'Advanced'
   
   =back
   
   The following environment variables are checked:
   
   =over 4
   
   =item 'form.catalogmode' 
   
   Checked for 'interactive' and 'groupsearch'.
   
   =item 'form.mode'
   
   Checked for existance & 'edit' mode.
   
   =item 'form.form'
   
   =item 'form.element'
   
   =back
   
 =cut  =cut
   
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub search_results_header {  sub search_results_header {
       my ($mode) = @_;
       $mode = lc($mode);
       my $title;
       if ($mode eq 'advanced') {
           $title = "Advanced Search Results";
       } elsif ($mode eq 'basic') {
           $title = "Basic Search Results";
       }
     my $result = '';      my $result = '';
     # output beginning of search page      # output beginning of search page
     $result.=<<BEGINNING;      $result.=<<BEGINNING;
 <html>  <html>
 <head>  <head>
 <title>The LearningOnline Network with CAPA</title>  <title>$title</title>
 BEGINNING  BEGINNING
     # conditional output of script functions dependent on the mode in      # conditional output of script functions dependent on the mode in
     # which the search was invoked      # which the search was invoked
Line 1407  SCRIPT Line 1508  SCRIPT
     }      }
 </script>  </script>
 SCRIPT  SCRIPT
       $result.=<<END;
   </head>
   <body bgcolor="#ffffff">
   <img align=right src=/adm/lonIcons/lonlogos.gif>
   <h1>$title</h1>
   END
     return $result;      return $result;
 }  }
   
Line 1448  sub make_popwin { Line 1555  sub make_popwin {
     $hcinit.="hc[\"$sk\"]=\"not yet connected...\";";      $hcinit.="hc[\"$sk\"]=\"not yet connected...\";";
  }   }
  $grid.=" hitcount=".$hc;   $grid.=" hitcount=".$hc;
  $grid.=" domain=".$hostdomains{$sk};   $grid.=" domain=".$Apache::lonnet::hostdom{$sk};
  $grid.=" IP=".$hostips{$sk};   $grid.=" IP=".$Apache::lonnet::hostip{$sk};
  # '+"'"+'">'+   # '+"'"+'">'+
  $grid.="'+\"'\"+')\">'+";   $grid.="'+\"'\"+')\">'+";
  $grid.="\n";   $grid.="\n";
  $grid.="'<img border=\"0\" name=\"img_".$hostdomains{$sk}.'_'.$sk."\"".   $grid.="'<img border=\"0\" name=\"img_".$Apache::lonnet::hostdom{$sk}.
     " src=\"/adm/lonIcons/srvnull.gif\" alt=\"".$sk."\" /></a>'+\n";              '_'.$sk."\" src=\"/adm/lonIcons/srvnull.gif\" alt=\"".$sk.
                   "\" /></a>'+\n";
  $grid.="'<br />'+\n" unless $sn%10;   $grid.="'<br />'+\n" unless $sn%10;
         $sn++;          $sn++;
     }      }
Line 1515  ENDPOP Line 1623  ENDPOP
 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, httphost, and  last revision date, owner, copyright, hostname, and
 extra custom metadata to show.  extra custom metadata to show.
   
 =over 4  =over 4
Line 1527  extra custom metadata to show. Line 1635  extra custom metadata to show.
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub detailed_citation_view {  sub detailed_citation_view {
     my ($title,$author,$subject,$url,$keywords,$version,      my %values = @_;
  $notes,$shortabstract,$mime,$lang,  
  $creationdate,$lastrevisiondate,$owner,$copyright,  
  $hostname,$httphost,$extrashow)=@_;  
     my $result=<<END;      my $result=<<END;
 <i>$owner</i>, last revised $lastrevisiondate  <h3><a href="http://$ENV{'HTTP_HOST'}$values{'url'}" 
 <h3><A HREF="http://$httphost$url" TARGET='search_preview'>$title</A></h3>      target='search_preview'>$values{'title'}</a></h3>
 <h3>$author</h3>  
 </p>  
 <p>  <p>
 <b>Subject:</b> $subject<br />  <b>$values{'author'}</b>, <i>$values{'owner'}</i><br />
 <b>Keyword(s):</b> $keywords<br />  
 <b>Notes:</b> $notes<br />  <b>Subject:       </b> $values{'subject'}<br />
 <b>MIME Type:</b>  <b>Keyword(s):    </b> $values{'keywords'}<br />
 END  <b>Notes:         </b> $values{'notes'}<br />
     $result.=&Apache::loncommon::filedescription($mime);  <b>MIME Type:     </b> $values{'mimetag'}<br />
     $result.=<<END;  <b>Language:      </b> $values{'language'}<br />
 <br />  <b>Copyright/Distribution:</b> $values{'cprtag'}<br />
 <b>Language:</b>   
 END  
     $result.=&Apache::loncommon::languagedescription($lang);  
     $result.=<<END;  
 <br />  
 <b>Copyright/Distribution:</b>   
 END  
     $result.=&Apache::loncommon::copyrightdescription($copyright);  
     $result.=<<END;  
 <br />  
 </p>  </p>
 $extrashow  $values{'extrashow'}
 <p>  <p>
 $shortabstract  $values{'shortabstract'}
 </p>  </p>
 END  END
     return $result;      return $result;
Line 1576  END Line 1669  END
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub summary_view {  sub summary_view {
     my ($title,$author,$subject,$url,$keywords,$version,      my %values = @_;
  $notes,$shortabstract,$mime,$lang,  
  $creationdate,$lastrevisiondate,$owner,$copyright,  
  $hostname,$httphost,$extrashow)=@_;  
     my $cprtag=&Apache::loncommon::copyrightdescription($copyright);  
     my $result=<<END;      my $result=<<END;
 <a href="http://$httphost$url" TARGET='search_preview'>$author</a><br />  <a href="http://$ENV{'HTTP_HOST'}$values{'url'}" 
 $title<br />     target='search_preview'>$values{'author'}</a><br />
 $owner -- $lastrevisiondate<br />  $values{'title'}<br />
 $cprtag<br />  $values{'owner'} -- $values{'lastrevisiondate'}<br />
 $extrashow  $values{'copyrighttag'}<br />
   $values{'extrashow'}
 </p>  </p>
 END  END
     return $result;      return $result;
Line 1604  END Line 1694  END
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub fielded_format_view {  sub fielded_format_view {
     my ($title,$author,$subject,$url,$keywords,$version,      my %values = @_;
  $notes,$shortabstract,$mime,$lang,  
  $creationdate,$lastrevisiondate,$owner,$copyright,  
  $hostname,$httphost,$extrashow)=@_;  
     my $mimetag=&Apache::loncommon::filedescription($mime);  
     my $language=&Apache::loncommon::languagedescription($lang);  
     my $cprtag=&Apache::loncommon::copyrightdescription($copyright);  
     my $result=<<END;      my $result=<<END;
 <b>URL: </b> <A HREF="http://$httphost$url" TARGET='search_preview'>$url</A>  <b>URL: </b> <a href="http://$ENV{'HTTP_HOST'}$values{'url'}" 
                 target='search_preview'>$values{'url'}</a>
 <br />  <br />
 <b>Title:</b> $title<br />  <b>Title:</b> $values{'title'}<br />
 <b>Author(s):</b> $author<br />  <b>Author(s):</b> $values{'author'}<br />
 <b>Subject:</b> $subject<br />  <b>Subject:</b> $values{'subject'}<br />
 <b>Keyword(s):</b> $keywords<br />  <b>Keyword(s):</b> $values{'keywords'}<br />
 <b>Notes:</b> $notes<br />  <b>Notes:</b> $values{'notes'}<br />
 <b>MIME Type:</b> $mimetag<br />  <b>MIME Type:</b> $values{'mimetag'}<br />
 <b>Language:</b> $language<br />  <b>Language:</b> $values{'language'}<br />
 <b>Creation Date:</b> $creationdate<br />  <b>Creation Date:</b> $values{'creationdate'}<br />
 <b>Last Revision Date:</b> $lastrevisiondate<br />  <b>Last Revision Date:</b> $values{'lastrevisiondate'}<br />
 <b>Publisher/Owner:</b> $owner<br />  <b>Publisher/Owner:</b> $values{'owner'}<br />
 <b>Copyright/Distribution:</b> $cprtag<br />  <b>Copyright/Distribution:</b> $values{'copyrighttag'}<br />
 <b>Repository Location:</b> $hostname<br />  <b>Repository Location:</b> $values{'hostname'}<br />
 <b>Abstract:</b> $shortabstract<br />  <b>Abstract:</b> $values{'shortabstract'}<br />
 $extrashow  $values{'extrashow'}
 </p>  </p>
 END  END
     return $result;      return $result;
Line 1647  END Line 1732  END
 ######################################################################  ######################################################################
 ######################################################################  ######################################################################
 sub xml_sgml_view {  sub xml_sgml_view {
     my ($title,$author,$subject,$url,$keywords,$version,      my %values = @_;
  $notes,$shortabstract,$mime,$lang,  
  $creationdate,$lastrevisiondate,$owner,$copyright,  
  $hostname,$httphost,$extrashow)=@_;  
     my $cprtag=&Apache::loncommon::copyrightdescription($copyright);  
     my $mimetag=&Apache::loncommon::filedescription($mime);  
     my $language=&Apache::loncommon::languagedescription($lang);  
     my $result=<<END;      my $result=<<END;
 <pre>  <pre>
 &lt;LonCapaResource&gt;  &lt;LonCapaResource&gt;
 &lt;url&gt;$url&lt;/url&gt;  &lt;url&gt;$values{'url'}&lt;/url&gt;
 &lt;title&gt;$title&lt;/title&gt;  &lt;title&gt;$values{'title'}&lt;/title&gt;
 &lt;author&gt;$author&lt;/author&gt;  &lt;author&gt;$values{'author'}&lt;/author&gt;
 &lt;subject&gt;$subject&lt;/subject&gt;  &lt;subject&gt;$values{'subject'}&lt;/subject&gt;
 &lt;keywords&gt;$keywords&lt;/keywords&gt;  &lt;keywords&gt;$values{'keywords'}&lt;/keywords&gt;
 &lt;notes&gt;$notes&lt;/notes&gt;  &lt;notes&gt;$values{'notes'}&lt;/notes&gt;
 &lt;mimeInfo&gt;  &lt;mimeInfo&gt;
 &lt;mime&gt;$mime&lt;/mime&gt;  &lt;mime&gt;$values{'mime'}&lt;/mime&gt;
 &lt;mimetag&gt;$mimetag&lt;/mimetag&gt;  &lt;mimetag&gt;$values{'mimetag'}&lt;/mimetag&gt;
 &lt;/mimeInfo&gt;  &lt;/mimeInfo&gt;
 &lt;languageInfo&gt;  &lt;languageInfo&gt;
 &lt;language&gt;$lang&lt;/language&gt;  &lt;language&gt;$values{'lang'}&lt;/language&gt;
 &lt;languagetag&gt;$language&lt;/languagetag&gt;  &lt;languagetag&gt;$values{'language'}&lt;/languagetag&gt;
 &lt;/languageInfo&gt;  &lt;/languageInfo&gt;
 &lt;creationdate&gt;$creationdate&lt;/creationdate&gt;  &lt;creationdate&gt;$values{'creationdate'}&lt;/creationdate&gt;
 &lt;lastrevisiondate&gt;$lastrevisiondate&lt;/lastrevisiondate&gt;  &lt;lastrevisiondate&gt;$values{'lastrevisiondate'}&lt;/lastrevisiondate&gt;
 &lt;owner&gt;$owner&lt;/owner&gt;  &lt;owner&gt;$values{'owner'}&lt;/owner&gt;
 &lt;copyrightInfo&gt;  &lt;copyrightInfo&gt;
 &lt;copyright&gt;$copyright&lt;/copyright&gt;  &lt;copyright&gt;$values{'copyright'}&lt;/copyright&gt;
 &lt;copyrighttag&gt;$cprtag&lt;/copyrighttag&gt;  &lt;copyrighttag&gt;$values{'copyrighttag'}&lt;/copyrighttag&gt;
 &lt;/copyrightInfo&gt;  &lt;/copyrightInfo&gt;
 &lt;repositoryLocation&gt;$hostname&lt;/repositoryLocation&gt;  &lt;repositoryLocation&gt;$values{'hostname'}&lt;/repositoryLocation&gt;
 &lt;shortabstract&gt;$shortabstract&lt;/shortabstract&gt;  &lt;shortabstract&gt;$values{'shortabstract'}&lt;/shortabstract&gt;
 &lt;/LonCapaResource&gt;  &lt;/LonCapaResource&gt;
 </pre>  </pre>
 $extrashow  $values{'extrashow'}
 END  END
     return $result;      return $result;
 }  }
Line 1860  input $r, loncapa server id, and an icon Line 1939  input $r, loncapa server id, and an icon
 ######################################################################  ######################################################################
 sub popwin_imgupdate {  sub popwin_imgupdate {
     my ($r,$server,$icon) = @_;      my ($r,$server,$icon) = @_;
     &popwin_js($r,'popwin.document.img_'.$hostdomains{$server}.'_'.$server.'.'.      &popwin_js($r,'popwin.document.img_'.$Apache::lonnet::hostdom{$server}.
        'src="/adm/lonIcons/'.$icon.'";');                 '_'.$server.'.'.'src="/adm/lonIcons/'.$icon.'";');
 }      }    
   
 1;  1;
Line 1872  __END__ Line 1951  __END__
   
 =back   =back 
   
 =over 4  
   
 =head1 HANDLER SUBROUTINE  
   
 This routine is called by Apache and mod_perl.  
   
 =over 4  
   
 =item *  
   
 configure dynamic components of interface  
   
 =item *  
   
 determine current user  
   
 =item *  
   
 see if a search invocation should be done  
   
 =item *  
   
 else, begin building search interface to output  
   
 =item *  
   
 compute date selection boxes  
   
 =item *  
   
 compute customized metadata field  
   
 =item *  
   
 print screen  
   
 =back  
   
 =head1 OTHER SUBROUTINES  
   
 =over 4  
   
 =item *  
   
 get_unprocessed_cgi() : reads in critical name/value pairs that may have not  
 been processed and passed into %ENV by the web server  
   
 =item *  
   
 make_persistent() : makes a set of hidden HTML fields to make  
 SQL search interface information to be persistent  
   
 =back  
   
 WEB INTERFACE COMPONENT FUNCTIONS  
   
 =over 4  
   
 =item *  
   
 simpletextfield(name,value) : returns HTML formatted string for simple text  
 field  
   
 =item *  
   
 simplecheckbox(name,value) : returns HTML formatted string for simple  
 checkbox  
   
 =item *  
   
 searchphrasefield(title,name,value) : returns HTML formatted string for  
 a search expression phrase field  
   
 =item *  
   
 dateboxes(name, defaultmonth, defaultday, defaultyear) : returns HTML  
 formatted string for a calendar date  
   
 =item *  
   
 selectbox(title,name,value,%HASH=options) : returns HTML formatted string for  
 a selection box field  
   
 =back  
   
 SEARCH FUNCTIONS  
   
 =over 4  
   
 =item *  
   
 advancedsearch(server reference, environment reference) : perform a complex  
 multi-field logical query  
   
 =item *  
   
 basicsearch(server reference, environment reference) : perform a simple  
 single-field logical query  
   
 =item *  
   
 build_SQL_query(field name, logic) : builds a SQL query string from a  
 logical expression with AND/OR keywords  
   
 =item *  
   
 build_custommetadata_query(field_name, logic_statement) : builds a perl  
 regular expression from a logical expression with AND/OR keywords  
   
 =item *  
   
 recursive_SQL_query_build(field name, reverse notation expression) :   
 builds a SQL query string from a reverse notation expression  
 logical expression with AND/OR keywords  
   
 =item *  
   
 build_date_queries(cmonth1, cday1, cyear1, cmonth2, cday2, cyear2,  
 lmonth1, lday1, lyear1, lmonth2, lday2, lyear2) :  
 Builds a SQL logic query to check time/date entries.  
   
 =back  
   
 OUTPUTTING RESULTS FUNCTION  
   
 =over 4  
   
 =item *  
   
 output_results(output mode, server reference, environment reference,  
 reply list reference) : outputs results from search  
   
 =back  
   
 DIFFERENT WAYS TO VIEW METADATA RECORDS  
   
 =over 4  
   
 =item *  
   
 detailed_citation_view(ORDERED METADATA LIST FOR A RESULT OBJECT INSTANCE) :  
 see metadata viewing notes below   
   
 =item *  
   
 summary_view(ORDERED METADATA LIST FOR A RESULT OBJECT INSTANCE) :  
 see metadata viewing notes below   
   
 =item *  
   
 fielded_format_view(ORDERED METADATA LIST FOR A RESULT OBJECT INSTANCE) :  
 see metadata viewing notes below   
   
 =item *  
   
 xml_sgml_view(ORDERED METADATA LIST FOR A RESULT OBJECT INSTANCE) :  
 see metadata viewing notes below   
   
 =back  
   
   _____________________________________________________________________  
  | * Metadata viewing notes                                            |  
  | Output is a HTML-ified string.                                      |  
  | Input arguments are title, author, subject, url, keywords, version, |  
  | notes, short abstract, mime, language, creation date,               |  
  | last revision date, owner, copyright, hostname, httphost, and       |  
  | extra custom metadata to show.                                      |  
   ---------------------------------------------------------------------  
   
 TEST CONDITIONAL FUNCTIONS  
   
 =over 4  
   
 =item *  
   
 filled(field) : determines whether a given field has been filled  
   
 =back  
   
 ERROR FUNCTIONS  
   
 =over 4  
   
 =item *  
   
 output_blank_field_error(server reference) : outputs a message saying that  
 more fields need to be filled in  
   
 =item *  
   
 output_date_error(server reference, error message) :   
   
   
 =back  
   
 =cut  =cut
Removed from v.1.125  
changed lines
  Added in v.1.130

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