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Diff for /loncom/interface/lonsearchcat.pm between versions 1.6 and 1.76

version 1.6, 2001/03/08 20:54:53 version 1.76, 2001/03/22 14:58:58
Line 2 Line 2
 # Search Catalog  # Search Catalog
 #  #
 # 03/08/2001 Scott Harrison  # 03/08/2001 Scott Harrison
   # Scott Harrison: 03/12/2001, 03/13/2001, 03/14/2001, 03/15/2001, 03/19/2001
   # Scott Harrison: 03/20/2001
 #  #
   # Functions
   #
   # handler(server reference) : interacts with the Apache server layer
   #                             (for /adm/searchcat URLs)
   # simpletextfield(name,value) : returns HTML formatted string for simple text
   #                               field
   # simplecheckbox(name,value) : returns HTML formatted string for simple
   #                              checkbox
   # searchphrasefield(title,name,value) : returns HTML formatted string for
   #                                       a search expression phrase field
   # dateboxes(name, defaultmonth, defaultday, defaultyear) : returns HTML
   #                                                          formatted string
   #                                                          for a calendar date
   # selectbox(title,name,value,%HASH=options) : returns HTML formatted string for
   #                                             a selection box field
   # advancedsearch(server reference, environment reference) : perform a complex
   #                                  multi-field logical query
   # filled(field) : determines whether a given field has been filled
   # basicsearch(server reference, environment reference) : perform a simple
   #                               single-field logical query
   # output_blank_field_error(server reference) : outputs a message saying that
   #                                              more fields need to be filled in
   # output_results(output mode,
   #                server reference, 
   #                environment reference,
   #                reply list reference) : outputs results from search
   # build_SQL_query(field name, logic) : builds a SQL query string from a
   #                                      logical expression with AND/OR keywords
   # 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
   
 package Apache::lonsearchcat;  package Apache::lonsearchcat;
   
 use strict;  use strict;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
 use Apache::lonnet();  use Apache::lonnet();
 use Apache::File();  use Apache::File();
   use CGI qw(:standard);
   use Text::Query;
   
 my %language;  my %language;
 my $scrout;  my $scrout;
 my %metadatafields;  my %metadatafields;
 my %cprtag;  my %cprtag;
 my %mimetag;  my %mimetag;
   my $closebutton;
   my $basicviewselect=<<END;
   <select name='basicviewselect'>
   <option value='Detailed Citation View'>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
   my $advancedviewselect=<<END;
   <select name='advancedviewselect'>
   <option value='Detailed Citation View'>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
   
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
   
   # -------------------------------------- see if called from an interactive mode
       map {
          my ($name, $value) = split(/=/,$_);
          $value =~ tr/+/ /;
          $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
          if ($name eq 'catalogmode') {
      $ENV{'form.'.$name}=$value;
          }
       } (split(/&/,$ENV{'QUERY_STRING'}));
   
     $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;
   
     %metadatafields=();      %metadatafields=();
   
       my $hidden='';
       $hidden=<<END if $ENV{'form.catalogmode'} eq 'interactive';
   <input type='hidden' name='catalogmode' value='interactive'>
   END
   
       $closebutton=<<END if $ENV{'form.catalogmode'} eq 'interactive';
   <input type="button" name="close" value='CLOSE' onClick="self.close()">
   END
   
 # ------------------------------------------------ First, check out environment  # ------------------------------------------------ First, check out environment
     $metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'};      $metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'};
   
   # --------------------------------- Compute various listings of metadata values
           
     %language=();      %language=();
     $language{'any'}='Any language';      $language{'any'}='Any language';
     {      {
  my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab');   my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab');
  map {   map {
     $_=~/(\w+)\s+([\w\s\-]+)/;      $_=~/(\w+)\s+([\w\s\-]+)/; chomp;
     $language{$1}=$2;      $language{$1}=$2;
  } <$fh>;   } <$fh>;
     }      }
Line 43  sub handler { Line 117  sub handler {
     {      {
  my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab');   my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab');
  map {   map {
     $_=~/(\w+)\s+([\w\s\-]+)/;      $_=~/(\w+)\s+([\w\s\-]+)/; chomp;
     $cprtag{$1}=$2;      $cprtag{$1}=$2;
  } <$fh>;   } <$fh>;
     }      }
Line 53  sub handler { Line 127  sub handler {
     {      {
  my $fh=Apache::File->new($r->dir_config('lonTabDir').'/filetypes.tab');   my $fh=Apache::File->new($r->dir_config('lonTabDir').'/filetypes.tab');
  map {   map {
     $_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/;      $_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/; chomp;
     $mimetag{$1}=".$1 $3";      $mimetag{$1}=".$1 $3";
  } <$fh>;   } <$fh>;
     }      }
   
     if ($ENV{'form.basicsubmit'} eq 'SEARCH') {      if ($ENV{'form.basicsubmit'} eq 'SEARCH') {
  return &basicsearch($r,$ENV{'form.basicexp'});   return &basicsearch($r,\%ENV);
       }
       elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') {
    return &advancedsearch($r,\%ENV);
     }      }
   
     $scrout="";      $scrout=''; # building a part of screen output
     $scrout.=&searchphrasefield('Limit by title','title',      $scrout.=&searchphrasefield('Limit by title','title',
  '');   $ENV{'form.title'});
   
     $scrout.=&searchphrasefield('Limit by author','author',      $scrout.=&searchphrasefield('Limit by author','author',
  '');   $ENV{'form.author'});
   
     $scrout.=&searchphrasefield('Limit by subject','subject',      $scrout.=&searchphrasefield('Limit by subject','subject',
  '');   $ENV{'form.subject'});
   
       $scrout.=&searchphrasefield('Limit by keywords','keywords',
    $ENV{'form.keywords'});
   
       $scrout.=&searchphrasefield('Limit by URL','url',
    $ENV{'form.url'});
   
       $scrout.=&searchphrasefield('Limit by version','version',
    $ENV{'form.version'});
   
     $scrout.=&searchphrasefield('Limit by notes','notes',      $scrout.=&searchphrasefield('Limit by notes','notes',
  '');   $ENV{'form.notes'});
   
     $scrout.=&searchphrasefield('Limit by abstract','abstract',      $scrout.=&searchphrasefield('Limit by abstract','abstract',
  '');   $ENV{'form.abstract'});
   
       $ENV{'form.mime'}='notxxx' unless length($ENV{'form.mime'});
     $scrout.=&selectbox('Limit by MIME type','mime',      $scrout.=&selectbox('Limit by MIME type','mime',
  'notxxx',%mimetag);   $ENV{'form.mime'},%mimetag);
   
       $ENV{'form.language'}='any' unless length($ENV{'form.language'});
   
     $scrout.=&selectbox('Limit by language','language',      $scrout.=&selectbox('Limit by language','language',
  'any',%language);   $ENV{'form.language'},%language);
           
     $scrout.=<<CREATIONDATEEND;  
   # ------------------------------------------------ Compute date selection boxes
       $scrout.=<<CREATIONDATESTART;
 <p>  <p>
 <font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b>  <font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b>
 </font>  </font>
 <br>  <br>
 between:<select name="creationdatemonthstart">  between:
 <option value="01"> </option>  CREATIONDATESTART
 <option value="01">January</option>      $scrout.=&dateboxes('creationdatestart',1,1,1976,
 <option value="02">February</option>   $ENV{'form.creationdatestart_month'},
 <option value="03">March</option>   $ENV{'form.creationdatestart_day'},
 <option value="04">April</option>   $ENV{'form.creationdatestart_year'},
 <option value="05">May</option>   );
 <option value="06">June</option>      $scrout.=<<CREATIONDATEEND;
 <option value="07">July</option>  and:
 <option value="08">August</option>  
 <option value="09">September</option>  
 <option value="10">October</option>  
 <option value="11">November</option>  
 <option value="12">December</option>  
 </select>  
 <select name="creationdatedaystart">  
 <option value="1"> </option>  
 <option value=1>1</option>  
 <option value=2>2</option>  
 <option value=3>3</option>  
 <option value=4>4</option>  
 <option value=5>5</option>  
 <option value=6>6</option>  
 <option value=7>7</option>  
 <option value=8>8</option>  
 <option value=9>9</option>  
 <option value=10>10</option>  
 <option value=11>11</option>  
 <option value=12>12</option>  
 <option value=13>13</option>  
 <option value=14>14</option>  
 <option value=15>15</option>  
 <option value=16>16</option>  
 <option value=17>17</option>  
 <option value=18>18</option>  
 <option value=19>19</option>  
 <option value=20>20</option>  
 <option value=21>21</option>  
 <option value=22>22</option>  
 <option value=23>23</option>  
 <option value=24>24</option>  
 <option value=25>25</option>  
 <option value=26>26</option>  
 <option value=27>27</option>  
 <option value=28>28</option>  
 <option value=29>29</option>  
 <option value=30>30</option>  
 <option value=31>31</option>  
 </select>  
 <select name="creationdateyearstart">  
 <option value=1976> </option>  
 <option value=1976>1976</option>  
 <option value=1977>1977</option>  
 <option value=1978>1978</option>  
 <option value=1979>1979</option>  
 <option value=1980>1980</option>  
 <option value=1981>1981</option>  
 <option value=1982>1982</option>  
 <option value=1983>1983</option>  
 <option value=1984>1984</option>  
 <option value=1985>1985</option>  
 <option value=1986>1986</option>  
 <option value=1987>1987</option>  
 <option value=1988>1988</option>  
 <option value=1989>1989</option>  
 <option value=1990>1990</option>  
 <option value=1991>1991</option>  
 <option value=1992>1992</option>  
 <option value=1993>1993</option>  
 <option value=1994>1994</option>  
 <option value=1995>1995</option>  
 <option value=1996>1996</option>  
 <option value=1997>1997</option>  
 <option value=1998>1998</option>  
 <option value=1999>1999</option>  
 <option value=2000>2000</option>  
 <option value=2001>2001</option>  
 <option value=2002>2002</option>  
 <option value=2003>2003</option>  
 <option value=2004>2004</option>  
 <option value=2005>2005</option>  
 <option value=2006>2006</option>  
 <option value=2007>2007</option>  
 <option value=2008>2008</option>  
 <option value=2009>2009</option>  
 <option value=2010>2010</option>  
 <option value=2011>2011</option>  
 <option value=2012>2012</option>  
 <option value=2013>2013</option>  
 <option value=2014>2014</option>  
 <option value=2015>2015</option>  
 <option value=2016>2016</option>  
 <option value=2017>2017</option>  
 <option value=2018>2018</option>  
 <option value=2019>2019</option>  
 <option value=2020>2020</option>  
 <option value=2021>2021</option>  
 <option value=2022>2022</option>  
 <option value=2023>2023</option>  
 <option value=2024>2024</option>  
 <option value=2025>2025</option>  
 <option value=2026>2026</option>  
 <option value=2027>2027</option>  
 <option value=2028>2028</option>  
 <option value=2029>2029</option>  
 <option value=2030>2030</option>  
 <option value=2031>2031</option>  
 <option value=2032>2032</option>  
 <option value=2033>2033</option>  
 <option value=2034>2034</option>  
 <option value=2035>2035</option>  
 <option value=2036>2036</option>  
 <option value=2037>2037</option>  
 <option value=2038>2038</option>  
 <option value=2039>2039</option>  
 <option value=2040>2040</option>  
 <option value=2041>2041</option>  
 <option value=2042>2042</option>  
 <option value=2043>2043</option>  
 <option value=2044>2044</option>  
 <option value=2045>2045</option>  
 <option value=2046>2046</option>  
 <option value=2047>2047</option>  
 <option value=2048>2048</option>  
 <option value=2049>2049</option>  
 <option value=2050>2050</option>  
 <option value=2051>2051</option>  
 </select>  
 and:<select name="creationdatemonthend">  
 <option value="12"> </option>  
 <option value="01">January</option>  
 <option value="02">February</option>  
 <option value="03">March</option>  
 <option value="04">April</option>  
 <option value="05">May</option>  
 <option value="06">June</option>  
 <option value="07">July</option>  
 <option value="08">August</option>  
 <option value="09">September</option>  
 <option value="10">October</option>  
 <option value="11">November</option>  
 <option value="12">December</option>  
 </select>  
 <select name="creationdatedayend">  
 <option value=28> </option>  
 <option value=1>1</option>  
 <option value=2>2</option>  
 <option value=3>3</option>  
 <option value=4>4</option>  
 <option value=5>5</option>  
 <option value=6>6</option>  
 <option value=7>7</option>  
 <option value=8>8</option>  
 <option value=9>9</option>  
 <option value=10>10</option>  
 <option value=11>11</option>  
 <option value=12>12</option>  
 <option value=13>13</option>  
 <option value=14>14</option>  
 <option value=15>15</option>  
 <option value=16>16</option>  
 <option value=17>17</option>  
 <option value=18>18</option>  
 <option value=19>19</option>  
 <option value=20>20</option>  
 <option value=21>21</option>  
 <option value=22>22</option>  
 <option value=23>23</option>  
 <option value=24>24</option>  
 <option value=25>25</option>  
 <option value=26>26</option>  
 <option value=27>27</option>  
 <option value=28>28</option>  
 <option value=29>29</option>  
 <option value=30>30</option>  
 <option value=31>31</option>  
 </select>  
 <select name="creationdateyearend">  
 <option value=2051> </option>  
 <option value=1976>1976</option>  
 <option value=1977>1977</option>  
 <option value=1978>1978</option>  
 <option value=1979>1979</option>  
 <option value=1980>1980</option>  
 <option value=1981>1981</option>  
 <option value=1982>1982</option>  
 <option value=1983>1983</option>  
 <option value=1984>1984</option>  
 <option value=1985>1985</option>  
 <option value=1986>1986</option>  
 <option value=1987>1987</option>  
 <option value=1988>1988</option>  
 <option value=1989>1989</option>  
 <option value=1990>1990</option>  
 <option value=1991>1991</option>  
 <option value=1992>1992</option>  
 <option value=1993>1993</option>  
 <option value=1994>1994</option>  
 <option value=1995>1995</option>  
 <option value=1996>1996</option>  
 <option value=1997>1997</option>  
 <option value=1998>1998</option>  
 <option value=1999>1999</option>  
 <option value=2000>2000</option>  
 <option value=2001>2001</option>  
 <option value=2002>2002</option>  
 <option value=2003>2003</option>  
 <option value=2004>2004</option>  
 <option value=2005>2005</option>  
 <option value=2006>2006</option>  
 <option value=2007>2007</option>  
 <option value=2008>2008</option>  
 <option value=2009>2009</option>  
 <option value=2010>2010</option>  
 <option value=2011>2011</option>  
 <option value=2012>2012</option>  
 <option value=2013>2013</option>  
 <option value=2014>2014</option>  
 <option value=2015>2015</option>  
 <option value=2016>2016</option>  
 <option value=2017>2017</option>  
 <option value=2018>2018</option>  
 <option value=2019>2019</option>  
 <option value=2020>2020</option>  
 <option value=2021>2021</option>  
 <option value=2022>2022</option>  
 <option value=2023>2023</option>  
 <option value=2024>2024</option>  
 <option value=2025>2025</option>  
 <option value=2026>2026</option>  
 <option value=2027>2027</option>  
 <option value=2028>2028</option>  
 <option value=2029>2029</option>  
 <option value=2030>2030</option>  
 <option value=2031>2031</option>  
 <option value=2032>2032</option>  
 <option value=2033>2033</option>  
 <option value=2034>2034</option>  
 <option value=2035>2035</option>  
 <option value=2036>2036</option>  
 <option value=2037>2037</option>  
 <option value=2038>2038</option>  
 <option value=2039>2039</option>  
 <option value=2040>2040</option>  
 <option value=2041>2041</option>  
 <option value=2042>2042</option>  
 <option value=2043>2043</option>  
 <option value=2044>2044</option>  
 <option value=2045>2045</option>  
 <option value=2046>2046</option>  
 <option value=2047>2047</option>  
 <option value=2048>2048</option>  
 <option value=2049>2049</option>  
 <option value=2050>2050</option>  
 <option value=2051>2051</option>  
 </select>  
 </p>  
 CREATIONDATEEND  CREATIONDATEEND
       $scrout.=&dateboxes('creationdateend',12,31,2051,
    $ENV{'form.creationdateend_month'},
    $ENV{'form.creationdateend_day'},
    $ENV{'form.creationdateend_year'},
    );
       $scrout.="</p>";
   
     $scrout.=<<LASTREVISIONDATEEND;      $scrout.=<<LASTREVISIONDATESTART;
 <p>  <p>
 <font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE:  <font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE:
 </b></font>  </b></font>
 <br>between:<select name="lastrevisiondatemonthstart">  <br>between:
 <option value="00"> </option>  LASTREVISIONDATESTART
 <option value="01">January</option>      $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976,
 <option value="02">February</option>   $ENV{'form.lastrevisiondatestart_month'},
 <option value="03">March</option>   $ENV{'form.lastrevisiondatestart_day'},
 <option value="04">April</option>   $ENV{'form.lastrevisiondatestart_year'},
 <option value="05">May</option>   );
 <option value="06">June</option>      $scrout.=<<LASTREVISIONDATEEND;
 <option value="07">July</option>  and:
 <option value="08">August</option>  
 <option value="09">September</option>  
 <option value="10">October</option>  
 <option value="11">November</option>  
 <option value="12">December</option>  
 </select>  
 <select name="lastrevisiondatedaystart">  
 <option value=1> </option>  
 <option value=1>1</option>  
 <option value=2>2</option>  
 <option value=3>3</option>  
 <option value=4>4</option>  
 <option value=5>5</option>  
 <option value=6>6</option>  
 <option value=7>7</option>  
 <option value=8>8</option>  
 <option value=9>9</option>  
 <option value=10>10</option>  
 <option value=11>11</option>  
 <option value=12>12</option>  
 <option value=13>13</option>  
 <option value=14>14</option>  
 <option value=15>15</option>  
 <option value=16>16</option>  
 <option value=17>17</option>  
 <option value=18>18</option>  
 <option value=19>19</option>  
 <option value=20>20</option>  
 <option value=21>21</option>  
 <option value=22>22</option>  
 <option value=23>23</option>  
 <option value=24>24</option>  
 <option value=25>25</option>  
 <option value=26>26</option>  
 <option value=27>27</option>  
 <option value=28>28</option>  
 <option value=29>29</option>  
 <option value=30>30</option>  
 <option value=31>31</option>  
 </select>  
 <select name="lastrevisiondateyearstart">  
 <option value=1976> </option>  
 <option value=1976>1976</option>  
 <option value=1977>1977</option>  
 <option value=1978>1978</option>  
 <option value=1979>1979</option>  
 <option value=1980>1980</option>  
 <option value=1981>1981</option>  
 <option value=1982>1982</option>  
 <option value=1983>1983</option>  
 <option value=1984>1984</option>  
 <option value=1985>1985</option>  
 <option value=1986>1986</option>  
 <option value=1987>1987</option>  
 <option value=1988>1988</option>  
 <option value=1989>1989</option>  
 <option value=1990>1990</option>  
 <option value=1991>1991</option>  
 <option value=1992>1992</option>  
 <option value=1993>1993</option>  
 <option value=1994>1994</option>  
 <option value=1995>1995</option>  
 <option value=1996>1996</option>  
 <option value=1997>1997</option>  
 <option value=1998>1998</option>  
 <option value=1999>1999</option>  
 <option value=2000>2000</option>  
 <option value=2001>2001</option>  
 <option value=2002>2002</option>  
 <option value=2003>2003</option>  
 <option value=2004>2004</option>  
 <option value=2005>2005</option>  
 <option value=2006>2006</option>  
 <option value=2007>2007</option>  
 <option value=2008>2008</option>  
 <option value=2009>2009</option>  
 <option value=2010>2010</option>  
 <option value=2011>2011</option>  
 <option value=2012>2012</option>  
 <option value=2013>2013</option>  
 <option value=2014>2014</option>  
 <option value=2015>2015</option>  
 <option value=2016>2016</option>  
 <option value=2017>2017</option>  
 <option value=2018>2018</option>  
 <option value=2019>2019</option>  
 <option value=2020>2020</option>  
 <option value=2021>2021</option>  
 <option value=2022>2022</option>  
 <option value=2023>2023</option>  
 <option value=2024>2024</option>  
 <option value=2025>2025</option>  
 <option value=2026>2026</option>  
 <option value=2027>2027</option>  
 <option value=2028>2028</option>  
 <option value=2029>2029</option>  
 <option value=2030>2030</option>  
 <option value=2031>2031</option>  
 <option value=2032>2032</option>  
 <option value=2033>2033</option>  
 <option value=2034>2034</option>  
 <option value=2035>2035</option>  
 <option value=2036>2036</option>  
 <option value=2037>2037</option>  
 <option value=2038>2038</option>  
 <option value=2039>2039</option>  
 <option value=2040>2040</option>  
 <option value=2041>2041</option>  
 <option value=2042>2042</option>  
 <option value=2043>2043</option>  
 <option value=2044>2044</option>  
 <option value=2045>2045</option>  
 <option value=2046>2046</option>  
 <option value=2047>2047</option>  
 <option value=2048>2048</option>  
 <option value=2049>2049</option>  
 <option value=2050>2050</option>  
 <option value=2051>2051</option>  
 </select>  
 and:<select name="lastrevisiondatemonthend">  
 <option value="12"> </option>  
 <option value="01">January</option>  
 <option value="02">February</option>  
 <option value="03">March</option>  
 <option value="04">April</option>  
 <option value="05">May</option>  
 <option value="06">June</option>  
 <option value="07">July</option>  
 <option value="08">August</option>  
 <option value="09">September</option>  
 <option value="10">October</option>  
 <option value="11">November</option>  
 <option value="12">December</option>  
 </select>  
 <select name="lastrevisiondatedayend">  
 <option value=28> </option>  
 <option value=1>1</option>  
 <option value=2>2</option>  
 <option value=3>3</option>  
 <option value=4>4</option>  
 <option value=5>5</option>  
 <option value=6>6</option>  
 <option value=7>7</option>  
 <option value=8>8</option>  
 <option value=9>9</option>  
 <option value=10>10</option>  
 <option value=11>11</option>  
 <option value=12>12</option>  
 <option value=13>13</option>  
 <option value=14>14</option>  
 <option value=15>15</option>  
 <option value=16>16</option>  
 <option value=17>17</option>  
 <option value=18>18</option>  
 <option value=19>19</option>  
 <option value=20>20</option>  
 <option value=21>21</option>  
 <option value=22>22</option>  
 <option value=23>23</option>  
 <option value=24>24</option>  
 <option value=25>25</option>  
 <option value=26>26</option>  
 <option value=27>27</option>  
 <option value=28>28</option>  
 <option value=29>29</option>  
 <option value=30>30</option>  
 <option value=31>31</option>  
 </select>  
 <select name="lastrevisiondateyearend">  
 <option value=2051> </option>  
 <option value=1976>1976</option>  
 <option value=1977>1977</option>  
 <option value=1978>1978</option>  
 <option value=1979>1979</option>  
 <option value=1980>1980</option>  
 <option value=1981>1981</option>  
 <option value=1982>1982</option>  
 <option value=1983>1983</option>  
 <option value=1984>1984</option>  
 <option value=1985>1985</option>  
 <option value=1986>1986</option>  
 <option value=1987>1987</option>  
 <option value=1988>1988</option>  
 <option value=1989>1989</option>  
 <option value=1990>1990</option>  
 <option value=1991>1991</option>  
 <option value=1992>1992</option>  
 <option value=1993>1993</option>  
 <option value=1994>1994</option>  
 <option value=1995>1995</option>  
 <option value=1996>1996</option>  
 <option value=1997>1997</option>  
 <option value=1998>1998</option>  
 <option value=1999>1999</option>  
 <option value=2000>2000</option>  
 <option value=2001>2001</option>  
 <option value=2002>2002</option>  
 <option value=2003>2003</option>  
 <option value=2004>2004</option>  
 <option value=2005>2005</option>  
 <option value=2006>2006</option>  
 <option value=2007>2007</option>  
 <option value=2008>2008</option>  
 <option value=2009>2009</option>  
 <option value=2010>2010</option>  
 <option value=2011>2011</option>  
 <option value=2012>2012</option>  
 <option value=2013>2013</option>  
 <option value=2014>2014</option>  
 <option value=2015>2015</option>  
 <option value=2016>2016</option>  
 <option value=2017>2017</option>  
 <option value=2018>2018</option>  
 <option value=2019>2019</option>  
 <option value=2020>2020</option>  
 <option value=2021>2021</option>  
 <option value=2022>2022</option>  
 <option value=2023>2023</option>  
 <option value=2024>2024</option>  
 <option value=2025>2025</option>  
 <option value=2026>2026</option>  
 <option value=2027>2027</option>  
 <option value=2028>2028</option>  
 <option value=2029>2029</option>  
 <option value=2030>2030</option>  
 <option value=2031>2031</option>  
 <option value=2032>2032</option>  
 <option value=2033>2033</option>  
 <option value=2034>2034</option>  
 <option value=2035>2035</option>  
 <option value=2036>2036</option>  
 <option value=2037>2037</option>  
 <option value=2038>2038</option>  
 <option value=2039>2039</option>  
 <option value=2040>2040</option>  
 <option value=2041>2041</option>  
 <option value=2042>2042</option>  
 <option value=2043>2043</option>  
 <option value=2044>2044</option>  
 <option value=2045>2045</option>  
 <option value=2046>2046</option>  
 <option value=2047>2047</option>  
 <option value=2048>2048</option>  
 <option value=2049>2049</option>  
 <option value=2050>2050</option>  
 <option value=2051>2051</option>  
 </select>  
 </p>  
 LASTREVISIONDATEEND  LASTREVISIONDATEEND
       $scrout.=&dateboxes('lastrevisiondateend',12,31,2051,
    $ENV{'form.lastrevisiondateend_month'},
    $ENV{'form.lastrevisiondateend_day'},
    $ENV{'form.lastrevisiondateend_year'},
    );
       $scrout.='</p>';
   
     $scrout.=&searchphrasefield('Limit by publisher/owner','owner',      $scrout.=&searchphrasefield('Limit by publisher/owner','owner',
  $metadatafields{'owner'});   $ENV{'form.owner'});
   # $metadatafields{'owner'});
   
       $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'});
     $scrout.=&selectbox('Limit by copyright/distribution','copyright',      $scrout.=&selectbox('Limit by copyright/distribution','copyright',
  'any',%cprtag);   $ENV{'form.copyright'},%cprtag);
   
   # ------------------------------------------- Compute customized metadata field
       $scrout.=<<CUSTOMMETADATA;
   <p>
   <font color="#800000" face="helvetica"><b>LIMIT BY OTHER METADATA FIELDS:</b>
   </font>
   For author-specific metadata, enter in an expression in the form of 
   <i>key</i>=<i>value</i> separated by operators such as AND or OR.<br>
   <b>Example:</b> grandmother=75 OR grandfather=85
   <br>
   CUSTOMMETADATA
   $scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'});
   $scrout.=' <i>initial users of this system do not need to worry about this option</i>';
   
 # ---------------------------------------------------------------- Print screen  # ---------------------------------------------------------------- Print screen
     $r->print(<<ENDDOCUMENT);      $r->print(<<ENDDOCUMENT);
Line 627  LASTREVISIONDATEEND Line 249  LASTREVISIONDATEEND
 <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
 <hr>  <hr>
 <h3>Basic Search</h3>  <h3>Basic Search</h3>
 <p>  <p>
Line 635  such as AND or OR then press SEARCH belo Line 258  such as AND or OR then press SEARCH belo
 to the title, author, subject, notes, or abstract information associated  to the title, author, subject, notes, or abstract information associated
 with a resource.  with a resource.
 <br>  <br>
 <input type="text" name="basicexp">  ENDDOCUMENT
 <input type="checkbox" name="titleonly">      $r->print(&simpletextfield('basicexp',$ENV{'form.basicexp'}));
 <font color="#800000">Title only</font>      $r->print(' ');
       $r->print(&simplecheckbox('titleonly',$ENV{'form.titleonly'}));
       $r->print('<font color="#800000">Title only</font> ');
       $r->print(&simplecheckbox('allversions',$ENV{'form.allversions'}));
       $r->print(<<ENDDOCUMENT);
   <font color="#800000">Search historic archives</font>
 <br>  <br>
 <input type="submit" name="basicsubmit" value="SEARCH">  <input type="submit" name="basicsubmit" value='SEARCH' />
   <input type="reset" name="reset" value='RESET' />
   $closebutton
   $basicviewselect
 </p>  </p>
 <hr>  <hr>
 <h3>Advanced Search</h3>  <h3>Advanced Search</h3>
 $scrout  $scrout
 <p>  <p>
 <input type="submit" name="advancedsubmit" value="SEARCH">  <input type="submit" name="advancedsubmit" value='SEARCH' />
   <input type="reset" name="reset" value='RESET' />
   $closebutton
   $advancedviewselect
 </p>  </p>
 </form>  </form>
 </body>  </body>
Line 656  ENDDOCUMENT Line 290  ENDDOCUMENT
   
 # --------------------------------------------------------- Various form fields  # --------------------------------------------------------- Various form fields
   
 sub textfield {  sub simpletextfield {
     my ($title,$name,$value)=@_;      my ($name,$value)=@_;
     return "\n<p><b>$title:</b><br>".      return '<input type=text name=\''.$name.
            '<input type=text name="'.$name.'" size=80 value="'.$value.'">';     '\' size=20 value=\''.$value.'\' />';
   }
   
   sub simplecheckbox {
       my ($name,$value)=@_;
       my $checked='';
       $checked="CHECKED" if $value eq 'on';
       return '<input type=checkbox name=\''.$name.'\' '. $checked . '>';
 }  }
   
 sub searchphrasefield {  sub searchphrasefield {
Line 670  as AND or OR. Line 311  as AND or OR.
 END  END
     my $uctitle=uc($title);      my $uctitle=uc($title);
     return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>".      return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>".
    ":</FONT> $instruction<br>".     "</FONT> $instruction<br>".
            '<input type=text name="'.$name.'" size=80 value="'.$value.'">';             '<input type=text name="'.$name.'" size=80 value=\''.$value.'\'>';
   }
   
   sub dateboxes {
       my ($name,$defaultmonth,$defaultday,$defaultyear,
    $currentmonth,$currentday,$currentyear)=@_;
       ($defaultmonth,$defaultday,$defaultyear)=('','','');
       my $month=<<END;
   <select name="${name}_month">
   <option value='$defaultmonth'> </option>
   <option value="1">January</option>
   <option value="2">February</option>
   <option value="3">March</option>
   <option value="4">April</option>
   <option value="5">May</option>
   <option value="6">June</option>
   <option value="7">July</option>
   <option value="8">August</option>
   <option value="9">September</option>
   <option value="10">October</option>
   <option value="11">November</option>
   <option value="12">December</option>
   </select>
   END
       $month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth);
       my $day=<<END;
   <select name="${name}_day">
   <option value='$defaultday'> </option>
   <option value="1">1</option>
   <option value="2">2</option>
   <option value="3">3</option>
   <option value="4">4</option>
   <option value="5">5</option>
   <option value="6">6</option>
   <option value="7">7</option>
   <option value="8">8</option>
   <option value="9">9</option>
   <option value="10">10</option>
   <option value="11">11</option>
   <option value="12">12</option>
   <option value="13">13</option>
   <option value="14">14</option>
   <option value="15">15</option>
   <option value="16">16</option>
   <option value="17">17</option>
   <option value="18">18</option>
   <option value="19">19</option>
   <option value="20">20</option>
   <option value="21">21</option>
   <option value="22">22</option>
   <option value="23">23</option>
   <option value="24">24</option>
   <option value="25">25</option>
   <option value="26">26</option>
   <option value="27">27</option>
   <option value="28">28</option>
   <option value="29">29</option>
   <option value="30">30</option>
   <option value="31">31</option>
   </select>
   END
       $day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday);
       my $year=<<END;
   <select name="${name}_year">
   <option value='$defaultyear'> </option>
   <option value="1976">1976</option>
   <option value="1977">1977</option>
   <option value="1978">1978</option>
   <option value="1979">1979</option>
   <option value="1980">1980</option>
   <option value="1981">1981</option>
   <option value="1982">1982</option>
   <option value="1983">1983</option>
   <option value="1984">1984</option>
   <option value="1985">1985</option>
   <option value="1986">1986</option>
   <option value="1987">1987</option>
   <option value="1988">1988</option>
   <option value="1989">1989</option>
   <option value="1990">1990</option>
   <option value="1991">1991</option>
   <option value="1992">1992</option>
   <option value="1993">1993</option>
   <option value="1994">1994</option>
   <option value="1995">1995</option>
   <option value="1996">1996</option>
   <option value="1997">1997</option>
   <option value="1998">1998</option>
   <option value="1999">1999</option>
   <option value="2000">2000</option>
   <option value="2001">2001</option>
   <option value="2002">2002</option>
   <option value="2003">2003</option>
   <option value="2004">2004</option>
   <option value="2005">2005</option>
   <option value="2006">2006</option>
   <option value="2007">2007</option>
   <option value="2008">2008</option>
   <option value="2009">2009</option>
   <option value="2010">2010</option>
   <option value="2011">2011</option>
   <option value="2012">2012</option>
   <option value="2013">2013</option>
   <option value="2014">2014</option>
   <option value="2015">2015</option>
   <option value="2016">2016</option>
   <option value="2017">2017</option>
   <option value="2018">2018</option>
   <option value="2019">2019</option>
   <option value="2020">2020</option>
   <option value="2021">2021</option>
   <option value="2022">2022</option>
   <option value="2023">2023</option>
   <option value="2024">2024</option>
   <option value="2025">2025</option>
   <option value="2026">2026</option>
   <option value="2027">2027</option>
   <option value="2028">2028</option>
   <option value="2029">2029</option>
   <option value="2030">2030</option>
   <option value="2031">2031</option>
   <option value="2032">2032</option>
   <option value="2033">2033</option>
   <option value="2034">2034</option>
   <option value="2035">2035</option>
   <option value="2036">2036</option>
   <option value="2037">2037</option>
   <option value="2038">2038</option>
   <option value="2039">2039</option>
   <option value="2040">2040</option>
   <option value="2041">2041</option>
   <option value="2042">2042</option>
   <option value="2043">2043</option>
   <option value="2044">2044</option>
   <option value="2045">2045</option>
   <option value="2046">2046</option>
   <option value="2047">2047</option>
   <option value="2048">2048</option>
   <option value="2049">2049</option>
   <option value="2050">2050</option>
   <option value="2051">2051</option>
   </select>
   END
       $year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear);
       return "$month$day$year";
 }  }
   
 sub selectbox {  sub selectbox {
Line 680  sub selectbox { Line 465  sub selectbox {
     my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:".      my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:".
  "</b></font><br>".'<select name="'.$name.'">';   "</b></font><br>".'<select name="'.$name.'">';
     map {      map {
         $selout.='<option value="'.$_.'"';          $selout.='<option value=\''.$_.'\'';
         if ($_ eq $value) { $selout.=' selected'; }          if ($_ eq $value) { $selout.=' selected'; }
         $selout.='>'.$options{$_}.'</option>';          $selout.='>'.$options{$_}.'</option>';
     } sort keys %options;      } sort keys %options;
     return $selout.'</select>';      return $selout.'</select>';
 }  }
   
   # ----------------------------------------------- Performing an advanced search
   sub advancedsearch {
       my ($r,$envhash)=@_;
       my %ENV=%{$envhash};
   
       my $fillflag=0;
       # Clean up fields for safety
       for my $field ('title','author','subject','keywords','url','version',
      'creationdatestart_month','creationdatestart_day',
      'creationdatestart_year','creationdateend_month',
      'creationdateend_day','creationdateend_year',
      'lastrevisiondatestart_month','lastrevisiondatestart_day',
      'lastrevisiondatestart_year','lastrevisiondateend_month',
      'lastrevisiondateend_day','lastrevisiondateend_year',
      'notes','abstract','mime','language','owner',
      'custommetadata') {
    $ENV{"form.$field"}=~s/[^\w\s\(\)\=\-\"\']//g;
       }
       for my $field ('title','author','subject','keywords','url','version',
      'notes','abstract','mime','language','owner',
      'custommetadata') {
    if (&filled($ENV{"form.$field"})) {
       $fillflag++;
    }
       }
   
       unless ($fillflag) {
    &output_blank_field_error($r);
    return OK;
       }
   
       my $query='';
   
       my @queries;
       # Go through logical expression AND/OR/NOT phrase fields.
   
       foreach my $field ('title','author','subject','notes','abstract','url',
          'keywords','version','owner') {
    if ($ENV{'form.'.$field}) {
       push @queries,&build_SQL_query($field,$ENV{'form.'.$field});
    }
       }
       if ($ENV{'form.language'} and $ENV{'form.language'} ne 'any') {
    push @queries,"(language like \"\%$ENV{'form.language'}\%\")";
       }
       if ($ENV{'form.mime'} and $ENV{'form.mime'} ne 'any') {
    push @queries,"(mime like \"\%$ENV{'form.mime'}\%\")";
       }
       if ($ENV{'form.copyright'} and $ENV{'form.copyright'} ne 'any') {
    push @queries,"(copyright like \"\%$ENV{'form.copyright'}\%\")";
       }
       my $datequery=&build_date_queries(
    $ENV{'form.creationdatestart_month'},
    $ENV{'form.creationdatestart_day'},
    $ENV{'form.creationdatestart_year'},
    $ENV{'form.creationdateend_month'},
    $ENV{'form.creationdateend_day'},
    $ENV{'form.creationdateend_year'},
    $ENV{'form.lastrevisiondatestart_month'},
    $ENV{'form.lastrevisiondatestart_day'},
    $ENV{'form.lastrevisiondatestart_year'},
    $ENV{'form.lastrevisiondateend_month'},
    $ENV{'form.lastrevisiondateend_day'},
    $ENV{'form.lastrevisiondateend_year'},
    );
       if ($datequery=~/^Incorrect/) {
    &output_date_error($r,$datequery);
    return OK;
       }
       elsif ($datequery) {
    push @queries,$datequery;
       }
       my $customquery='';
       if ($ENV{'form.custommetadata'}) {
    $customquery=&build_custommetadata_query('custommetadata',
         $ENV{'form.custommetadata'});
       }
       if (@queries) {
    $query=join(" AND ",@queries);
    $query="select * from metadata where $query";
    my $reply='';
    unless ($customquery) {
       $reply=&Apache::lonnet::metadata_query($query);
    }
    else {
       $reply=&Apache::lonnet::metadata_query($query,$customquery);
    }
    &output_results('Advanced',$r,$envhash,$customquery,$reply);
       }
       else {
    &output_results('Advanced',$r,$envhash,$query);
       }
       return OK;
   }
   
   # ---------------------------------------------------- see if a field is filled
   sub filled {
       my ($field)=@_;
       if ($field=~/\S/) {
    return 1;
       }
       else {
    return 0;
       }
   }
   
 # --------------------------------------------------- Performing a basic search  # --------------------------------------------------- Performing a basic search
 sub basicsearch {  sub basicsearch {
     my ($r,$expression)=@_;      my ($r,$envhash)=@_;
       my %ENV=%{$envhash};
   
     my $query=$expression;      # Clean up fields for safety
 #    $query="select * from metadata where concat(title,':\@:',author) like '\%Sci\%'";      for my $field ('basicexp') {
     $query="select * from metadata where concat(title,\"    \",author) like '\%$expression\%'";   $ENV{"form.$field"}=~s/[^\w\s\(\)\-]//g;
 #    my $reply=&Apache::lonnet::reply("querysend:DESCRIBE metadata","msul3");      }
     my $reply=&Apache::lonnet::reply("querysend:$query",'msul3');  
 #    my $reply=&Apache::lonnet::reply('querysend:select * from metadata','msul3');  
   
     my @results;  
   
     my $replyfile='';  
     $reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting  
     $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1;  
     $reply=~/(.*?)\_/;  
     my $hostname=$1;  
   
     {      unless (&filled($ENV{'form.basicexp'})) {
  while (1) {   &output_blank_field_error($r);
     last if -e $replyfile;   return OK;
     sleep 1;  
  }  
  # QUESTION: how should I handle this error condition..  
  # I'm sure there is syntax elsewhere I can use..  
  my $fh=Apache::File->new($replyfile) or  
        ($r->print('file cannot be opened') and return OK);  
        @results=<$fh>;  
     }      }
   
       my $query='';
       my $concatarg=join(',"    ",',
          ('title', 'author', 'subject', 'notes', 'abstract'));
   
       $query="select * from metadata where concat($concatarg) like '\%$ENV{'form.basicexp'}\%'";
       my $reply=&Apache::lonnet::metadata_query($query);
       &output_results('Basic',$r,$envhash,$query,$reply);
       return OK;
   }
   
   # ---------------- Message to output when there are not enough fields filled in
   sub output_blank_field_error {
       my ($r)=@_;
       # make query information persistent to allow for subsequent revision
       my $persistent=&make_persistent();
   
       $r->print(<<BEGINNING);
   <html>
   <head>
   <title>The LearningOnline Network with CAPA</title>
   BEGINNING
       $r->print(<<RESULTS);
   </head>
   <body bgcolor="#ffffff">
   <img align=right src=/adm/lonIcons/lonlogos.gif>
   <h1>Search Catalog</h1>
   <form method="post" action="/adm/searchcat">
   $persistent
   <input type='button' value='Revise search request'
   onClick='this.form.submit();'>
   $closebutton
   <hr>
   <h3>Helpful Message</h3>
   <p>
   Incorrect search query due to blank entry fields.
   You need to fill in the relevant
   fields on the search page in order for a query to be
   processed.
   </p>
   </body>
   </html>
   RESULTS
   }
   
   # ----------------------------- format and output results based on a reply list
   sub output_results {
       my ($mode,$r,$envhash,$query,@replylist)=@_;
       my %ENV=%{$envhash};
     my $compiledresult='';      my $compiledresult='';
   
     foreach my $result (@results) {      foreach my $reply (@replylist) {
  my ($title,$author,$subject,$notes,$abstract,$mime,$lang,  
     $creationdate,$lastrevisiondate,$owner,$copyright   my @results;
     )=map {&Apache::lonnet::unescape($_)} (split(/\,/,$result));  
  my $shortabstract=$abstract;   my $replyfile='';
  $shortabstract=substr($abstract,0,200) if length($abstract)>200;   $reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting
  $compiledresult=<<END;   $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1;
    $reply=~/(.*?)\_/;
    my $hostname=$1;
    sleep 3; # temporary fix, need to check for completion and status
    {
       while (1) {
    last if -e $replyfile;
    sleep 1;
       }
       # QUESTION: how should I handle this error condition..
       # I'm sure there is syntax elsewhere I can use..
       my $fh=Apache::File->new($replyfile) or
    ($r->print('file cannot be opened') and return OK);
       @results=<$fh>;
    }
   
    foreach my $result (@results) {
       my @fields=map
                      {&Apache::lonnet::unescape($_)}
                      (split(/\,/,$result));
       my ($title,$author,$subject,$url,$keywords,$version,
    $notes,$abstract,$mime,$lang,
    $creationdate,$lastrevisiondate,$owner,$copyright)=@fields;
       my $shortabstract=$abstract;
       $shortabstract=substr($abstract,0,200) if length($abstract)>200;
       $fields[7]=$shortabstract;
       $compiledresult.=<<END;
   <p>
   END
               $compiledresult.=<<END if $ENV{'form.catalogmode'} eq 'interactive';
   <font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"
   onClick="javascript:select_data('$title','$url')">
   </font>
   <br>
   END
               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') {
    $compiledresult.=&detailed_citation_view(@fields,
    $hostname,$httphost);
       }
               elsif ($viewselect eq 'Summary View') {
    $compiledresult.=&summary_view(@fields,$hostname,$httphost);
       }
               elsif ($viewselect eq 'Fielded Format') {
    $compiledresult.=&fielded_format_view(@fields,$hostname,
         $httphost);
       }
               elsif ($viewselect eq 'XML/SGML') {
    $compiledresult.=&xml_sgml_view(@fields,$hostname,$httphost);
       }
   
           }
   
    unless ($compiledresult) {
       $compiledresult="There were no results that matched your query";
    }
   
    # make query information persistent to allow for subsequent revision
    my $persistent=&make_persistent();
   
    $r->print(<<BEGINNING);
   <html>
   <head>
   <title>The LearningOnline Network with CAPA</title>
   BEGINNING
           $r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'interactive';
   <script>
       function select_data(title,url) {
    changeTitle(title);
    changeURL(url);
       }
       function changeTitle(val) {
    if (opener.inf.document.forms.resinfo.elements.t) {
       opener.inf.document.forms.resinfo.elements.t.value=val;
    }
       }
       function changeURL(val) {
    if (opener.inf.document.forms.resinfo.elements.u) {
       opener.inf.document.forms.resinfo.elements.u.value=val;
    }
       }
   </script>
   SCRIPT
           $r->print(<<RESULTS);
   </head>
   <body bgcolor="#ffffff">
   <img align=right src=/adm/lonIcons/lonlogos.gif>
   <h1>Search Catalog</h1>
   <form method="post" action="/adm/searchcat">
   <input type='button' value='Revise search request'
   onClick='this.form.submit();'>
   $closebutton
   $persistent
   <hr>
   <h3>Search Query</h3>
   RESULTS
       if ($mode eq 'Basic') {
    $r->print(<<RESULTS);
   <p>
   <b>Basic search:</b> $ENV{'form.basicexp'}
   </p>
   RESULTS
       }
       elsif ($mode eq 'Advanced') {
    $r->print(<<RESULTS);
   <p>
   <b>Advanced search</b>
   $query
   </p>
   RESULTS
       }
    $r->print(<<RESULTS);
   <h3>Search Results</h3>
   $compiledresult
   </body>
   </html>
   RESULTS
       }
   }
   
   # ------------------------------------------------------------- build_SQL_query
   sub build_SQL_query {
       my ($field_name,$logic_statement)=@_;
       my $q=new Text::Query('abc',
     -parse => 'Text::Query::ParseAdvanced',
     -build => 'Text::Query::Build');
       $q->prepare($logic_statement);
       my $matchexp=${$q}{'matchexp'}; chomp $matchexp;
       my $sql_query=&recursive_SQL_query_build($field_name,$matchexp);
       return $sql_query;
   }
   
   # ------------------------------------------------- build custom metadata query
   sub build_custommetadata_query {
       my ($field_name,$logic_statement)=@_;
       my $q=new Text::Query('abc',
     -parse => 'Text::Query::ParseAdvanced',
     -build => 'Text::Query::BuildAdvancedString');
       $q->prepare($logic_statement);
       my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'};
       # quick fix to change literal into xml tag-matching
       # will eventually have to write a separate builder module
       my $oldmatchexp=$matchexp;
       $matchexp=~s/(\w+)\\\=(\w+)/\\\<$1\\\>\[\^\\\<\]\*$2\[\^\\\<\]\*\\\<\\\/$1\\\>/g;
       return $matchexp;
   }
   
   # - Recursively parse a reverse notation expression into a SQL query expression
   sub recursive_SQL_query_build {
       my ($dkey,$pattern)=@_;
       my @matches=($pattern=~/(\[[^\]|\[]*\])/g);
       return $pattern unless @matches;
       foreach my $match (@matches) {
    $match=~/\[ (\w+)\s(.*) \]/;
    my ($key,$value)=($1,$2);
    my $replacement='';
    if ($key eq 'literal') {
       $replacement="($dkey like \"\%$value\%\")";
    }
    elsif ($key eq 'and') {
       $value=~/(.*[\"|\)]) ([|\(|\^].*)/;
       $replacement="($1 AND $2)";
    }
    elsif ($key eq 'or') {
       $value=~/(.*[\"|\)]) ([|\(|\^].*)/;
       $replacement="($1 OR $2)";
    }
    substr($pattern,
          index($pattern,$match),
          length($match),
          $replacement
          );
       }
       &recursive_SQL_query_build($dkey,$pattern);
   }
   
   # ------------------------------------------------------ Detailed Citation View
   sub detailed_citation_view {
       my ($title,$author,$subject,$url,$keywords,$version,
    $notes,$shortabstract,$mime,$lang,
    $creationdate,$lastrevisiondate,$owner,$copyright,
    $hostname,$httphost)=@_;
       my $result=<<END;
   <i>$owner</i>, last revised $lastrevisiondate
   <h3><A HREF="http://$httphost$url" TARGET='search_preview'>$title</A></h3>
   <h3>$author</h3>
   </p>
 <p>  <p>
 <b>Title:</b> $title<br>  
 <b>Author(s):</b> $author<br>  
 <b>Subject:</b> $subject<br>  <b>Subject:</b> $subject<br>
 <b>Keyword(s):</b> <i>not available yet</i><br>  <b>Keyword(s):</b> $keywords<br>
 <b>Notes:</b> $notes<br>  <b>Notes:</b> $notes<br>
 <b>Abstract:</b> $shortabstract<br>  
 <b>MIME Type:</b> $mimetag{$mime}<br>  <b>MIME Type:</b> $mimetag{$mime}<br>
 <b>Language:</b> $language{$lang}<br>  <b>Language:</b> $language{$lang}<br>
 <b>Creation Date:</b> $creationdate<br>  <b>Copyright/Distribution:</b> $cprtag{$copyright}<br>
 <b>Last Revision Date:</b> $lastrevisiondate<br>  $shortabstract
 <b>Publisher/Owner:</b> $owner<br>  </p>
 <b>Copyright/Distribution:</b> $copyright<br>  END
 <b>Repository Location:</b> $hostname      return $result;
   }
   
   # ---------------------------------------------------------------- Summary View
   sub summary_view {
       my ($title,$author,$subject,$url,$keywords,$version,
    $notes,$shortabstract,$mime,$lang,
    $creationdate,$lastrevisiondate,$owner,$copyright,
    $hostname,$httphost)=@_;
       my $result=<<END;
   <a href="http://$httphost$url" TARGET='search_preview'>$author</a><br />
   $title<br />
   $owner -- $lastrevisiondate<br />
   $cprtag{$copyright}<br />
 </p>  </p>
 END  END
       return $result;
 }  }
   
     unless ($compiledresult) {  # -------------------------------------------------------------- Fielded Format
  $compiledresult="There were no results that matched your query";  sub fielded_format_view {
       my ($title,$author,$subject,$url,$keywords,$version,
    $notes,$shortabstract,$mime,$lang,
    $creationdate,$lastrevisiondate,$owner,$copyright,
    $hostname,$httphost)=@_;
       my $result=<<END;
   <b>URL: </b> <A HREF="http://$httphost$url" TARGET='search_preview'>$url</A>
   <br />
   <b>Title:</b> $title<br />
   <b>Author(s):</b> $author<br />
   <b>Subject:</b> $subject<br />
   <b>Keyword(s):</b> $keywords<br />
   <b>Notes:</b> $notes<br />
   <b>MIME Type:</b> $mimetag{$mime}<br />
   <b>Language:</b> $language{$lang}<br />
   <b>Creation Date:</b> $creationdate<br />
   <b>Last Revision Date:</b> $lastrevisiondate<br />
   <b>Publisher/Owner:</b> $owner<br />
   <b>Copyright/Distribution:</b> $cprtag{$copyright}<br />
   <b>Repository Location:</b> $hostname<br />
   <b>Abstract:</b> $shortabstract<br />
   </p>
   END
       return $result;
   }
   
   # -------------------------------------------------------------------- XML/SGML
   sub xml_sgml_view {
       my ($title,$author,$subject,$url,$keywords,$version,
    $notes,$shortabstract,$mime,$lang,
    $creationdate,$lastrevisiondate,$owner,$copyright,
    $hostname,$httphost)=@_;
       my $result=<<END;
   <pre>
   &lt;LonCapaResource&gt;
   &lt;url&gt;$url&lt;/url&gt;
   &lt;title&gt;$title&lt;/title&gt;
   &lt;author&gt;$author&lt;/author&gt;
   &lt;subject&gt;$subject&lt;/subject&gt;
   &lt;keywords&gt;$keywords&lt;/keywords&gt;
   &lt;notes&gt;$notes&lt;/notes&gt;
   &lt;mimeInfo&gt;
   &lt;mime&gt;$mime&lt;/mime&gt;
   &lt;mimetag&gt;$mimetag{$mime}&lt;/mimetag&gt;
   &lt;/mimeInfo&gt;
   &lt;languageInfo&gt;
   &lt;language&gt;$lang&lt;/language&gt;
   &lt;languagetag&gt;$language{$lang}&lt;/languagetag&gt;
   &lt;/languageInfo&gt;
   &lt;creationdate&gt;$creationdate&lt;/creationdate&gt;
   &lt;lastrevisiondate&gt;$lastrevisiondate&lt;/lastrevisiondate&gt;
   &lt;owner&gt;$owner&lt;/owner&gt;
   &lt;copyrightInfo&gt;
   &lt;copyright&gt;$copyright&lt;/copyright&gt;
   &lt;copyrighttag&gt;$cprtag{$copyright}&lt;/copyrighttag&gt;
   &lt;/copyrightInfo&gt;
   &lt;repositoryLocation&gt;$hostname&lt;/repositoryLocation&gt;
   &lt;shortabstract&gt;$shortabstract&lt;/shortabstract&gt;
   &lt;/LonCapaResource&gt;
   </pre>
   END
       return $result;
   }
   
   sub build_date_queries {
       my ($cmonth1,$cday1,$cyear1,$cmonth2,$cday2,$cyear2,
    $lmonth1,$lday1,$lyear1,$lmonth2,$lday2,$lyear2)=@_;
       my @queries;
       if ($cmonth1 or $cday1 or $cyear1 or $cmonth2 or $cday2 or $cyear2) {
    unless ($cmonth1 and $cday1 and $cyear1 and
    $cmonth2 and $cday2 and $cyear2) {
       return "Incorrect entry for the creation date.  You must specify ".
      "a starting month, day, and year and an ending month, ".
      "day, and year.";
    }
    my $cnumeric1=sprintf("%d%2d%2d",$cyear1,$cmonth1,$cday1);
    $cnumeric1+=0;
    my $cnumeric2=sprintf("%d%2d%2d",$cyear2,$cmonth2,$cday2);
    $cnumeric2+=0;
    if ($cnumeric1>$cnumeric2) {
       return "Incorrect entry for the creation date.  The starting ".
      "date must occur before the ending date.";
    }
    my $cquery="(creationdate BETWEEN '$cyear1-$cmonth1-$cday1' AND '".
              "$cyear2-$cmonth2-$cday2 23:59:59')";
    push @queries,$cquery;
       }
       if ($lmonth1 or $lday1 or $lyear1 or $lmonth2 or $lday2 or $lyear2) {
    unless ($lmonth1 and $lday1 and $lyear1 and
    $lmonth2 and $lday2 and $lyear2) {
       return "Incorrect entry for the last revision date.  You must ".
      "specify a starting month, day, and year and an ending ".
      "month, day, and year.";
    }
    my $lnumeric1=sprintf("%d%2d%2d",$lyear1,$lmonth1,$lday1);
    $lnumeric1+=0;
    my $lnumeric2=sprintf("%d%2d%2d",$lyear2,$lmonth2,$lday2);
    $lnumeric2+=0;
    if ($lnumeric1>$lnumeric2) {
       return "Incorrect entry for the last revision date.  The ".
      "starting date must occur before the ending date.";
    }
    my $lquery="(lastrevisiondate BETWEEN '$lyear1-$lmonth1-$lday1' AND '".
              "$lyear2-$lmonth2-$lday2 23:59:59')";
    push @queries,$lquery;
       }
       if (@queries) {
    return join(" AND ",@queries);
     }      }
       return '';
   }
   
 # Question... allow to ask question from this page, or click to  sub output_date_error {
 # search again?      my ($r,$message)=@_;
     $r->print(<<RESULTS);      # make query information persistent to allow for subsequent revision
       my $persistent=&make_persistent();
   
       $r->print(<<BEGINNING);
 <html>  <html>
 <head>  <head>
 <title>The LearningOnline Network with CAPA</title>  <title>The LearningOnline Network with CAPA</title>
   BEGINNING
       $r->print(<<RESULTS);
 </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>Search Catalog</h1>
 <form method="post" action="/adm/searchcat">  <form method="post" action="/adm/searchcat">
   $persistent
   <input type='button' value='Revise search request'
   onClick='this.form.submit();'>
   $closebutton
 <hr>  <hr>
 <h3>Search Query</h3>  <h3>Helpful Message</h3>
 <p>  <p>
 $expression  $message
 </p>  </p>
 <h3>Search Results</h3>  
 $compiledresult  
 </body>  </body>
 </html>  </html>
 RESULTS  RESULTS
   
     return OK;  
 }  }
   
   sub make_persistent {
       my $persistent='';
       
       map {
    if (/^form\./ && !/submit/) {
       my $name=$_;
       my $key=$name;
       $ENV{$key}=~s/\'//g; # do not mess with html field syntax
       $name=~s/^form\.//;
       $persistent.=<<END;
   <input type='hidden' name='$name' value='$ENV{$key}' />
   END
           }
       } (keys %ENV);
       return $persistent;
   }
 1;  1;
 __END__  __END__
Removed from v.1.6  
changed lines
  Added in v.1.76

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