--- loncom/interface/lonsearchcat.pm 2001/03/12 17:28:32 1.7
+++ loncom/interface/lonsearchcat.pm 2001/12/13 14:00:37 1.112
@@ -1,683 +1,353 @@
-# The LearningOnline Network
+# The LearningOnline Network with CAPA
# Search Catalog
#
-# 03/08/2001 Scott Harrison
+# $Id: lonsearchcat.pm,v 1.112 2001/12/13 14:00:37 harris41 Exp $
#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+# YEAR=2001
+# 3/8, 3/12, 3/13, 3/14, 3/15, 3/19 Scott Harrison
+# 3/20, 3/21, 3/22, 3/26, 3/27, 4/2, 8/15, 8/24, 8/25 Scott Harrison
+# 10/12,10/14,10/15,10/16,11/28,11/29,12/10,12/12 Scott Harrison
+#
+###
+
+###############################################################################
+## ##
+## ORGANIZATION OF THIS PERL MODULE ##
+## ##
+## 1. Modules used by this module ##
+## 2. Choices for different output views (detailed, summary, xml, etc) ##
+## 3. BEGIN block (to be run once after compilation) ##
+## 4. Handling routine called via Apache and mod_perl ##
+## 5. Other subroutines ##
+## ##
+###############################################################################
+
package Apache::lonsearchcat;
+# ------------------------------------------------- modules used by this module
use strict;
use Apache::Constants qw(:common);
use Apache::lonnet();
use Apache::File();
use CGI qw(:standard);
+use Text::Query;
+use GDBM_File;
+use Apache::loncommon();
+
+# ---------------------------------------- variables used throughout the module
+
+# -- information holders
+# my %language; # holds contents of language.tab
+# my %cprtag; # holds contents of copyright.tab
+# my %mimetag; # holds contents of filetypes.tab
+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
+my $closebutton; # button that closes the search window
+my $importbutton; # button to take the selected results and go to group sorting
+
+# -- miscellaneous variables
+my $scrout; # string that holds portions of the screen output
+my $yourself; # allows for quickly limiting to oneself
+my %hash;
+
+# ------------------------------------------ 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
+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
+
+# ----------------------------------------------------------------------- BEGIN
+sub BEGIN {
+ {
+ my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
+ '/hosts.tab');
+ while (<$fh>) {
+ $_=~/(\w+?)\:(\w+?)\:(\w+?)\:(.*)/; chomp;
+ if ($3 eq 'library') {
+ $hostdomains{$1}=$2;
+ $hostips{$1}=$4;
+ }
+ }
+ }
+}
-my %language;
-my $scrout;
-my %metadatafields;
-my %cprtag;
-my %mimetag;
+my $diropendb = "";
+my $domain = "";
+# ----------------------------- Handling routine called via Apache and mod_perl
sub handler {
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'}));
+ untie %hash;
+ &get_unprocessed_cgi();
$r->content_type('text/html');
$r->send_http_header;
return OK if $r->header_only;
- %metadatafields=();
+ $domain = $r->dir_config('lonDefDomain');
-# ------------------------------------------------ First, check out environment
- $metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'};
+ $diropendb= "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db";
-
- %language=();
- $language{'any'}='Any language';
- {
- my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab');
- map {
- $_=~/(\w+)\s+([\w\s\-]+)/;
- $language{$1}=$2;
- } <$fh>;
+ if ($ENV{'form.launch'} eq '1') {
+ if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) {
+ &start_fresh_session();
+ untie %hash;
+ }
+ else {
+ $r->print('<html><head></head><body>Unable to tie hash to db '.
+ 'file</body></html>');
+ return OK;
+ }
}
- %cprtag=();
- $cprtag{'any'}='Any copyright/distribution';
- {
- my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab');
- map {
- $_=~/(\w+)\s+([\w\s\-]+)/;
- $cprtag{$1}=$2;
- } <$fh>;
+# ----------------------------------- configure dynamic components of interface
+ my $hidden='';
+ if ($ENV{'form.catalogmode'} eq 'interactive') {
+ $hidden="<input type='hidden' name='catalogmode' value='interactive'>".
+ "\n";
+ $closebutton="<input type='button' name='close' value='CLOSE' ".
+ "onClick='self.close()'>"."\n";
}
-
- %mimetag=();
- $mimetag{'any'}='Any type';
- {
- my $fh=Apache::File->new($r->dir_config('lonTabDir').'/filetypes.tab');
- map {
- $_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/;
- $mimetag{$1}=".$1 $3";
- } <$fh>;
+ elsif ($ENV{'form.catalogmode'} eq 'groupsearch') {
+ $hidden=<<END;
+<input type='hidden' name='catalogmode' value='groupsearch'>
+END
+ $closebutton=<<END;
+<input type='button' name='close' value='CLOSE' onClick='self.close()'>
+END
+ $importbutton=<<END;
+<input type='button' name='import' value='IMPORT'
+onClick='javascript:select_group()'>
+END
}
+# ------------------------------------------------------ Determine current user
+ $yourself=$ENV{'user.name'}.'@'.$ENV{'user.domain'};
+
+# --- Now, depending on the interface actions, do one of three things here:
+# --- 1. a basic search
+# --- 2. an advanced search
+# --- 3. output a search interface
+
+# ----------------------------------- See if a search invocation should be done
if ($ENV{'form.basicsubmit'} eq 'SEARCH') {
- return &basicsearch($r,$ENV{'form.basicexp'});
+ untie %hash; return &basicsearch($r,\%ENV);
+ }
+ elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') {
+ untie %hash; return &advancedsearch($r,\%ENV);
}
- $scrout="";
+# ----------------------------- Else, begin building search interface to output
+ $scrout=''; # building a part of screen output
$scrout.=&searchphrasefield('Limit by title','title',
- '');
+ $ENV{'form.title'});
$scrout.=&searchphrasefield('Limit by author','author',
- '');
+ $ENV{'form.author'});
$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',
- '');
+ $ENV{'form.notes'});
$scrout.=&searchphrasefield('Limit by abstract','abstract',
- '');
+ $ENV{'form.abstract'});
+ $ENV{'form.mime'}='any' unless length($ENV{'form.mime'});
$scrout.=&selectbox('Limit by MIME type','mime',
- 'notxxx',%mimetag);
+ $ENV{'form.mime'},
+ 'any','Any type',
+ \&{Apache::loncommon::filedescriptionex},
+ (&Apache::loncommon::fileextensions));
+
+ $ENV{'form.language'}='any' unless length($ENV{'form.language'});
$scrout.=&selectbox('Limit by language','language',
- 'any',%language);
-
- $scrout.=<<CREATIONDATEEND;
+ $ENV{'form.language'},'any','Any Language',
+ \&{Apache::loncommon::languagedescription},
+ (&Apache::loncommon::languageids),
+ );
+
+# ------------------------------------------------ Compute date selection boxes
+ $scrout.=<<CREATIONDATESTART;
<p>
<font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b>
</font>
-<br>
-between:<select name="creationdatemonthstart">
-<option value="01"> </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="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>
+<br />
+between:
+CREATIONDATESTART
+ $scrout.=&dateboxes('creationdatestart',1,1,1976,
+ $ENV{'form.creationdatestart_month'},
+ $ENV{'form.creationdatestart_day'},
+ $ENV{'form.creationdatestart_year'},
+ );
+ $scrout.=<<CREATIONDATEEND;
+and:
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>
<font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE:
</b></font>
-<br>between:<select name="lastrevisiondatemonthstart">
-<option value="00"> </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="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>
+<br />between:
+LASTREVISIONDATESTART
+ $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976,
+ $ENV{'form.lastrevisiondatestart_month'},
+ $ENV{'form.lastrevisiondatestart_day'},
+ $ENV{'form.lastrevisiondatestart_year'},
+ );
+ $scrout.=<<LASTREVISIONDATEEND;
+and:
LASTREVISIONDATEEND
+ $scrout.=&dateboxes('lastrevisiondateend',12,31,2051,
+ $ENV{'form.lastrevisiondateend_month'},
+ $ENV{'form.lastrevisiondateend_day'},
+ $ENV{'form.lastrevisiondateend_year'},
+ );
+ $scrout.='</p>';
$scrout.=&searchphrasefield('Limit by publisher/owner','owner',
- $metadatafields{'owner'});
+ $ENV{'form.owner'});
+ $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'});
$scrout.=&selectbox('Limit by copyright/distribution','copyright',
- 'any',%cprtag);
+ $ENV{'form.copyright'},
+ 'any','Any copyright/distribution',
+ \&{Apache::loncommon::copyrightdescription},
+ (&Apache::loncommon::copyrightids),
+ );
+
+# ------------------------------------------- Compute customized metadata field
+ $scrout.=<<CUSTOMMETADATA;
+<p>
+<font color="#800000" face="helvetica"><b>LIMIT BY SPECIAL METADATA FIELDS:</b>
+</font>
+For resource-specific metadata, enter in an expression in the form of
+<i>key</i>=<i>value</i> separated by operators such as AND, OR or NOT.<br />
+<b>Example:</b> grandmother=75 OR grandfather=85
+<br />
+CUSTOMMETADATA
+$scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'});
+$scrout.=' <i>initial users of this system do not need to worry about this option</i>';
+
+ $scrout.=<<CUSTOMSHOW;
+<p>
+<font color="#800000" face="helvetica"><b>SHOW SPECIAL METADATA FIELDS:</b>
+</font>
+Enter in a space-separated list of special metadata fields to show
+in a fielded listing for each record result.
+<br />
+CUSTOMSHOW
+$scrout.=&simpletextfield('customshow',$ENV{'form.customshow'});
+$scrout.=' <i>initial users of this system do not need to worry about this option</i>';
# ---------------------------------------------------------------- Print screen
$r->print(<<ENDDOCUMENT);
<html>
<head>
<title>The LearningOnline Network with CAPA</title>
-<script>
- function select_data() {
- changeTitle();
- changeURL();
- }
- function changeTitle() {
- if (opener.inf.document.forms.resinfo.elements.t) {
- opener.inf.document.forms.resinfo.elements.t.value="ABC";
- }
- }
- function changeURL() {
- if (opener.inf.document.forms.resinfo.elements.u) {
- opener.inf.document.forms.resinfo.elements.u.value="DEF";
- }
+<script type="text/javascript">
+ function openhelp(val) {
+ openhelpwin=open('/adm/help/searchcat.html','helpscreen',
+ 'scrollbars=1,width=400,height=300');
+ openhelpwin.focus();
}
</script>
</head>
<body bgcolor="#FFFFFF">
-<img align=right src=/adm/lonIcons/lonlogos.gif>
+<img align='right' src='/adm/lonIcons/lonlogos.gif' />
<h1>Search Catalog</h1>
<form method="post" action="/adm/searchcat">
-<hr>
+$hidden
+<hr />
<h3>Basic Search</h3>
<p>
-<INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"
-onClick="javascript:select_data()">
-</p>
-<p>
Enter terms or phrases separated by search operators
-such as AND or OR then press SEARCH below. Terms should be specific
+such as AND, OR, or NOT then press SEARCH below. Terms should be specific
to the title, author, subject, notes, or abstract information associated
with a resource.
-<br>
-<input type="text" name="basicexp">
-<input type="checkbox" name="titleonly">
-<font color="#800000">Title only</font>
-<br>
-<input type="submit" name="basicsubmit" value="SEARCH">
+<br />
+ENDDOCUMENT
+ $r->print(&simpletextfield('basicexp',$ENV{'form.basicexp'}));
+ $r->print(' ');
+ $r->print(&simplecheckbox('titleonly',$ENV{'form.titleonly'}));
+ $r->print('<font color="#800000">Title only</font> ');
+# $r->print(&simplecheckbox('allversions',$ENV{'form.allversions'}));
+# <font color="#800000">Search historic archives</font>
+ $r->print(<<ENDDOCUMENT);
+<br />
+<input type="submit" name="basicsubmit" value='SEARCH' />
+<input type="reset" name="reset" value='RESET' />
+$closebutton
+$basicviewselect
+<input type="button" value="HELP" onClick="openhelp()" />
</p>
-<hr>
+<hr />
<h3>Advanced Search</h3>
$scrout
<p>
-<input type="submit" name="advancedsubmit" value="SEARCH">
+<input type="submit" name="advancedsubmit" value='SEARCH' />
+<input type="reset" name="reset" value='RESET' />
+$closebutton
+$advancedviewselect
+<input type="button" value="HELP" onClick="openhelp()" />
</p>
</form>
</body>
@@ -686,125 +356,1418 @@ ENDDOCUMENT
return OK;
}
+# ----------- grab unprocessed CGI variables that may have been appended to URL
+sub get_unprocessed_cgi {
+ foreach (split(/&/,$ENV{'QUERY_STRING'})) {
+ 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' or $name eq 'launch' or $name eq 'acts') {
+ $ENV{'form.'.$name}=$value;
+ }
+ }
+}
+
+# ------------------------------------------------------------- make persistent
+sub make_persistent {
+ my $persistent='';
+
+ foreach (keys %ENV) {
+ 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
+ }
+ }
+ return $persistent;
+}
+
# --------------------------------------------------------- Various form fields
-sub textfield {
- my ($title,$name,$value)=@_;
- return "\n<p><b>$title:</b><br>".
- '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
+sub simpletextfield {
+ my ($name,$value)=@_;
+ return '<input type=text name=\''.$name.
+ '\' size=20 value=\''.$value.'\' />';
+}
+
+sub simplecheckbox {
+ my ($name,$value)=@_;
+ my $checked='';
+ $checked="CHECKED" if $value eq 'on';
+ return '<input type=checkbox name=\''.$name.'\' '. $checked . '>';
}
sub searchphrasefield {
my ($title,$name,$value)=@_;
my $instruction=<<END;
Enter terms or phrases separated by search operators such
-as AND or OR.
+as AND, OR, or NOT.
END
my $uctitle=uc($title);
return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>".
- ":</FONT> $instruction<br>".
- '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
+ "</FONT> $instruction<br />".
+ '<input type=text name="'.$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$year";
}
sub selectbox {
- my ($title,$name,$value,%options)=@_;
+ my ($title,$name,$value,$anyvalue,$anytag,$functionref,@idlist)=@_;
my $uctitle=uc($title);
my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:".
- "</b></font><br>".'<select name="'.$name.'">';
- map {
- $selout.='<option value="'.$_.'"';
- if ($_ eq $value) { $selout.=' selected'; }
- $selout.='>'.$options{$_}.'</option>';
- } sort keys %options;
+ "</b></font><br />".'<select name="'.$name.'">';
+ foreach ($anyvalue,@idlist) {
+ $selout.='<option value=\''.$_.'\'';
+ if ($_ eq $value and !/^any$/) {
+ $selout.=' selected>'.&{$functionref}($_).'</option>';
+ }
+ elsif ($_ eq $value and /^$anyvalue$/) {
+ $selout.=' selected>'.$anytag.'</option>';
+ }
+ else {$selout.='>'.&{$functionref}($_).'</option>';}
+ }
return $selout.'</select>';
}
+sub testf {
+ return @_[0];
+}
+
+# ----------------------------------------------- Performing an advanced search
+sub advancedsearch {
+ my ($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','customshow') {
+ $ENV{"form.$field"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
+ }
+
+ # Check to see if enough information was filled in
+ 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;
+ }
+
+
+ # Turn the form input into a SQL-based query
+ my $query='';
+
+ my @queries;
+ # Evaluate 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});
+ }
+ }
+ # Evaluate option lists
+ 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'}\")";
+ }
+ # Evaluate date windows
+ 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'},
+ $ENV{'form.lastrevisiondateend_year'},
+ );
+ # Test to see if date windows are legitimate
+ if ($datequery=~/^Incorrect/) {
+ &output_date_error($r,$datequery);
+ return OK;
+ }
+ elsif ($datequery) {
+ push @queries,$datequery;
+ }
+
+ # Process form information for custom metadata querying
+ my $customquery='';
+ if ($ENV{'form.custommetadata'}) {
+ $customquery=&build_custommetadata_query('custommetadata',
+ $ENV{'form.custommetadata'});
+ }
+ my $customshow='';
+ if ($ENV{'form.customshow'}) {
+ $customshow=$ENV{'form.customshow'};
+ $customshow=~s/[^\w\s]//g;
+ my @fields=split(/\s+/,$customshow);
+ $customshow=join(" ",@fields);
+ }
+ # Send query statements over the network to be processed by either the SQL
+ # database or a recursive scheme of 'grep'-like actions (for custom
+ # metadata).
+ if (@queries) {
+ $query=join(" AND ",@queries);
+ $query="select * from metadata where $query";
+ my $reply; # reply hash reference
+ unless ($customquery or $customshow) {
+ $reply=&Apache::lonnet::metadata_query($query);
+ }
+ else {
+ $reply=&Apache::lonnet::metadata_query($query,
+ $customquery,$customshow);
+ }
+ &output_results('Advanced',$r,$envhash,$customquery,$reply);
+ }
+ elsif ($customquery) {
+ my $reply; # reply hash reference
+ $reply=&Apache::lonnet::metadata_query('',
+ $customquery,$customshow);
+ &output_results('Advanced',$r,$envhash,$customquery,$reply);
+ }
+ # should not get to this point
+ return 'Error. Should not have gone to this point.';
+}
+
# --------------------------------------------------- Performing a basic search
sub basicsearch {
- my ($r,$expression)=@_;
+ my ($r,$envhash)=@_;
+ my %ENV=%{$envhash};
+ # Clean up fields for safety
+ for my $field ('basicexp') {
+ $ENV{"form.$field"}=~s/[^\w\s\(\)\-]//g;
+ }
- my $query=$expression;
-# $query="select * from metadata where concat(title,':\@:',author) like '\%Sci\%'";
- $query="select * from metadata where concat(title,\" \",author) like '\%$expression\%'";
-# 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=$1;
+ # Check to see if enough is filled in
+ unless (&filled($ENV{'form.basicexp'})) {
+ &output_blank_field_error($r);
+ return OK;
+ }
- {
- 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>;
+ # Build SQL query string based on form page
+ my $query='';
+ my $concatarg=join('," ",',
+ ('title', 'author', 'subject', 'notes', 'abstract'));
+ $concatarg='title' if $ENV{'form.titleonly'};
+
+ $query=&build_SQL_query('concat('.$concatarg.')',$ENV{'form.'.'basicexp'});
+
+ # Get reply (either a hash reference to filehandles or bad connection)
+ my $reply=&Apache::lonnet::metadata_query('select * from metadata where '.$query);
+
+ # Output search results
+
+ &output_results('Basic',$r,$envhash,$query,$reply);
+
+ return OK;
+}
+
+# ------------------------------------------------------------- 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 'not') {
+ $value=~s/like/not like/;
+# $replacement="($dkey not like $value)";
+ $replacement="$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,$pattern);
+}
+# ------------------------------------------------------------ Build date query
+sub build_date_queries {
+ my ($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 '';
+}
+
+# ----------------------------- format and output results based on a reply list
+# There are two windows that this function writes to. The main search
+# window ("srch") has a listing of the results. A secondary window ("popwin")
+# gives the status of the network search (time elapsed, number of machines
+# contacted, etc.)
+sub output_results {
+ my $fnum; # search result counter
+ my ($mode,$r,$envhash,$query,$replyref)=@_;
+ my %ENV=%{$envhash};
+ my %rhash=%{$replyref};
my $compiledresult='';
+ my $timeremain=300;
+ my $elapsetime=0;
+ my $resultflag=0;
+ my $tflag=1;
+
+ # make query information persistent to allow for subsequent revision
+ my $persistent=&make_persistent();
+
+ # output beginning of search page
+ $r->print(<<BEGINNING);
+<html>
+<head>
+<title>The LearningOnline Network with CAPA</title>
+BEGINNING
- foreach my $result (@results) {
- my ($title,$author,$subject,$notes,$abstract,$mime,$lang,
- $creationdate,$lastrevisiondate,$owner,$copyright
- )=map {&Apache::lonnet::unescape($_)} (split(/\,/,$result));
- my $shortabstract=$abstract;
- $shortabstract=substr($abstract,0,200) if length($abstract)>200;
- $compiledresult=<<END;
-<p>
-<b>Title:</b> $title<br>
-<b>Author(s):</b> $author<br>
-<b>Subject:</b> $subject<br>
-<b>Keyword(s):</b> <i>not available yet</i><br>
-<b>Notes:</b> $notes<br>
-<b>Abstract:</b> $shortabstract<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> $copyright<br>
-<b>Repository Location:</b> $hostname
+ # conditional output of script functions dependent on the mode in
+ # which the search was invoked
+ $r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'interactive';
+<script type="text/javascript">
+ function select_data(title,url) {
+ changeTitle(title);
+ changeURL(url);
+ self.close();
+ }
+ 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(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'groupsearch';
+<script type="text/javascript">
+ function select_data(title,url) {
+// alert('DEBUG: Should be storing '+title+' and '+url);
+ }
+ function queue(val) {
+ if (eval("document.forms.results.returnvalues["+val+"].checked")) {
+ document.forms.results.acts.value+='1a'+val+'b';
+ }
+ else {
+ document.forms.results.acts.value+='0a'+val+'b';
+ }
+ }
+ function select_group() {
+ window.location="/adm/groupsort?catalogmode=groupsearch&acts="+
+ document.forms.results.acts.value;
+ }
+</script>
+SCRIPT
+ $r->print(<<SCRIPT);
+<script type="text/javascript">
+ function displayinfo(val) {
+ popwin.document.forms.popremain.sdetails.value=val;
+ }
+ function openhelp(val) {
+ openhelpwin=open('/adm/help/searchcat.html','helpscreen',
+ 'scrollbars=1,width=400,height=300');
+ openhelpwin.focus();
+ }
+ function abortsearch(val) {
+ openhelpwin=open('/adm/help/searchcat.html','helpscreen',
+ 'scrollbars=1,width=400,height=300');
+ openhelpwin.focus();
+ }
+</script>
+SCRIPT
+ $r->rflush();
+
+ # begin showing the cataloged results
+ $r->print(<<CATALOGBEGIN);
+</head>
+<body bgcolor="#ffffff">
+<img align=right src=/adm/lonIcons/lonlogos.gif>
+<h1>Search Catalog</h1>
+CATALOGBEGIN
+ $r->print(<<CATALOGCONTROLS);
+<form name='results' method="post" action="/adm/searchcat">
+<input type='hidden' name='acts' value='' />
+<input type='button' value='Revise search request'
+onClick='this.form.submit();' />
+$importbutton
+$closebutton
+$persistent
+<hr />
+<h3>Search Query</h3>
+CATALOGCONTROLS
+ 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('<h3>Search Results</h3>');
+ $r->rflush();
+ my $servernum=(keys %rhash)+0;
+
+ # define server grid (shows status of multiple machines)
+ my $hcinit;
+ my $grid="'<br />'+";
+ $grid.="\n";
+ my $sn=1;
+ for my $sk (sort keys %rhash) {
+ # '<a href="
+ $grid.="'<a href=\"";
+ # javascript:displayinfo('+
+ $grid.="javascript:opener.displayinfo('+";
+ # "'"+'key
+ $grid.="\"'\"+'";
+ $grid.=$sk;
+ my $hc;
+ if ($rhash{$sk} eq 'con_lost') {
+ $hc="!!!BAD CONNECTION, CONTACT SYSTEM ADMINISTRATOR!!!";
+ }
+ else {
+ $hc="'+\"'\"+\"+hc['$sk']+\"+\"'\"+'";
+ $hcinit.="hc[\"$sk\"]=\"not yet connected...\";";
+ }
+ $grid.=" hitcount=".$hc;
+ $grid.=" domain=".$hostdomains{$sk};
+ $grid.=" IP=".$hostips{$sk};
+ # '+"'"+'">'+
+ $grid.="'+\"'\"+')\">'+";
+ $grid.="\n";
+ $grid.="'<img border=\"0\" name=\"img".$sn."\"".
+ " src=\"/adm/lonIcons/srvnull.gif\" alt=\"".$sk."\" /></a>'+\n";
+ $grid.="'<br />'+\n" unless $sn%10;
+ $sn++;
+ }
+ $r->print(<<ENDPOP);
+<script type="text/javascript">
+ popwin=open('','popwin','scrollbars=1,width=400,height=200');
+ popwin.focus();
+ popwin.document.writeln('<'+'html>');
+ popwin.document.writeln('<'+'head>');
+ popwin.document.writeln('<'+'script>');
+ popwin.document.writeln('hc=new Array();$hcinit');
+ popwin.document.writeln('<'+'/script>');
+ popwin.document.writeln('<'+'/head>'+
+ '<'+'body bgcolor="#FFFFFF">'+
+ '<'+'image name="whirly" align="right" src="/adm/lonIcons/'+
+ 'lonanim.gif" '+
+ 'alt="animated logo" />'+
+ '<'+'h3>Search Results Progress<'+'/h3>'+
+ '<'+'form name="popremain">'+
+ '<'+'tt>'+
+ '<'+'br clear="all"/><i>PLEASE BE PATIENT</i>'+
+ '<'+'br />SCANNING $servernum SERVERS'+
+ '<'+'br clear="all" />Number of record hits found '+
+ '<'+'input type="text" size="10" name="numhits"'+
+ ' value="0" />'+
+ '<'+'br clear="all" />Time elapsed '+
+ '<'+'input type="text" size="10" name="elapsetime"'+
+ ' value="0" />'+
+ '<'+'br />'+
+ 'SERVER GRID (click on any cell for details)'+
+ $grid
+ '<'+'br />'+
+ 'Server details '+
+ '<'+'input type="text" size="25" name="sdetails"'+
+ ' value="" />'+
+ '<'+'br />'+
+ ' <'+'input type="button" name="button"'+
+ ' value="abort search and view current results" '+
+ ' onClick="javascript:opener.abortsearch()" />'+
+ ' <'+'input type="button" name="button"'+
+ ' value="help" onClick="javascript:opener.openhelp()" />'+
+ '<'+'/tt>'+
+ '<'+'/form>'+
+ '<'+'/body><'+'/html>');
+ popwin.document.close();
+</script>
+ENDPOP
+ $r->rflush();
+
+ my $servercount=0;
+ my $hitcountsum=0;
+ my $bloop=$servernum;
+ my %orkey;
+ BLOOP: while(1) {
+ my $sn=0;
+ last BLOOP unless $bloop;
+ last BLOOP unless $timeremain;
+ RLOOP: foreach my $rkey (sort keys %rhash) {
+ $sn++;
+ next RLOOP if $orkey{$rkey};
+ $servercount++;
+ $tflag=1;
+ $compiledresult='';
+ my $hostname=$rkey;
+ my $reply=$rhash{$rkey};
+ my @results;
+
+ my $replyfile='';
+
+ if ($reply eq 'con_lost') {
+ $r->print('<script type="text/javascript">popwin.document.img'.
+ $sn.'.'.
+ 'src="/adm/lonIcons/srvbad.gif";</script>'.
+ "\n");
+ $r->rflush();
+ $bloop--;
+ $orkey{$rkey}=1;
+ }
+ else {
+ $reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting
+ $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1;
+ $reply=~/(.*?)\_/;
+ {
+ my $temp=0;
+ WLOOP: while (1) {
+ if (-e $replyfile && $tflag) {
+ $r->print('<script type="text/javascript">'.
+ 'popwin.document.img'.$sn.'.'.
+ 'src="/adm/lonIcons/srvhalf.gif";</script>'.
+ "\n");
+ $r->rflush();
+ $r->print('<script type="text/javascript">'.
+ 'popwin.hc["'.$rkey.'"]='.
+ '"still transferring..."'.';</script>'.
+ "\n");
+ $r->rflush();
+ $tflag=0;
+ }
+ if (-e "$replyfile.end") {
+ $bloop--;
+ $orkey{$rkey}=1;
+ if (-s $replyfile) {
+ $r->print('<script type="text/javascript">'.
+ 'popwin.document.img'.$sn.'.'.
+ 'src="/adm/lonIcons/srvgood.gif";'.
+ '</script>'."\n");
+ $r->rflush();
+ my $fh=Apache::File->new($replyfile) or
+ ($r->print('ERROR: file '.
+ $replyfile.' cannot be opened') and
+ return OK);
+ @results=<$fh> if $fh;
+ $hitcount{$rkey}=@results+0;
+ $r->print('<script type="text/javascript">'.
+ 'popwin.hc["'.$rkey.'"]='.
+ $hitcount{$rkey}.';</script>'.
+ "\n");
+ $r->rflush();
+ $hitcountsum+=$hitcount{$rkey};
+ $r->print('<script type="text/javascript">'.
+ 'popwin.document.forms.popremain.'.
+ 'numhits.value='.$hitcountsum.
+ ';</script>'.
+ "\n");
+ $r->rflush();
+ }
+ else {
+ $r->print('<script type="text/javascript">'.
+ 'popwin.document.img'.$sn.'.'.
+ 'src="/adm/lonIcons/srvempty.gif";'.
+ '</script>'.
+ "\n");
+ $r->rflush();
+ $r->print('<script type="text/javascript">'.
+ 'popwin.hc["'.$rkey.'"]=0'.
+ ';</script>'.
+ "\n");
+ $r->rflush();
+ }
+ last WLOOP;
+ }
+ if ($temp>1) {
+ sleep 1;
+ $timeremain--;
+ $elapsetime++;
+ last WLOOP;
+ }
+ last WLOOP unless $timeremain;
+ sleep 1;
+ $timeremain--;
+ $elapsetime++;
+ $r->print('<script type="text/javascript">'.
+ 'popwin.document.popremain.elapsetime.'.
+ 'value="'.$elapsetime.'";</script>'."\n");
+ $r->rflush();
+ $temp++;
+ }
+ }
+ $r->print('<script type="text/javascript">'.
+ 'popwin.document.whirly.'.
+ 'src="'.'/adm/lonIcons/lonanimend.gif'.
+ '";</script>'."\n");
+ $r->rflush();
+ }
+ 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}=$v;
+ }
+ }
+ if (keys %hash) {
+ untie %hash;
+ }
+ if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) {
+ if ($ENV{'form.launch'} eq '1') {
+ &start_fresh_session();
+ }
+ foreach my $result (@results) {
+ next if $result=~/^custom\=/;
+ chomp $result;
+ next unless $result;
+ my @fields=map
+ {&Apache::lonnet::unescape($_)}
+ (split(/\,/,$result));
+ my ($title,$author,$subject,$url,$keywords,$version,
+ $notes,$abstract,$mime,$lang,
+ $creationdate,$lastrevisiondate,$owner,$copyright)=@fields;
+
+ 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) {
+ foreach my $field (@customfields) {
+ my $value='';
+ if ($customhash{$url}=~/\<${field}[^\>]*\>(.*?)\<\/${field}[^\>]*\>/s) {
+ $value=$1;
+ }
+ $extrashow2=~s/\<\!\-\- $field \-\-\>/ $value/g;
+ }
+ }
+
+ $compiledresult.=<<END if $compiledresult or $servercount!=$servernum;
+<hr align='left' width='200' noshade />
+END
+ $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','$url')">
+</font>
+<br />
+END
+ if ($ENV{'form.catalogmode'} eq 'groupsearch') {
+ $fnum+=0;
+ $hash{"pre_${fnum}_link"}=$url;
+ $hash{"pre_${fnum}_title"}=$title;
+ $compiledresult.=<<END;
+<font size='-1'><input type="checkbox" name="returnvalues" value="SELECT"
+onClick="javascript:queue($fnum)" />
+</font>
+<br />
+END
+# <input type="hidden" name="title$fnum" value="$title" />
+# <input type="hidden" name="url$fnum" value="$url" />
+ $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') {
+ $compiledresult.=&detailed_citation_view(@fields,
+ $hostname,$httphost,
+ $extrashow2);
+ }
+ elsif ($viewselect eq 'Summary View') {
+ $compiledresult.=&summary_view(@fields,$hostname,$httphost,
+ $extrashow2);
+ }
+ elsif ($viewselect eq 'Fielded Format') {
+ $compiledresult.=&fielded_format_view(@fields,$hostname,
+ $httphost,$extrashow2);
+ }
+ elsif ($viewselect eq 'XML/SGML') {
+ $compiledresult.=&xml_sgml_view(@fields,$hostname,$httphost,
+ $extrashow2);
+ }
+
+ }
+
+ untie %hash;
+ }
+ else {
+ $r->print('<html><head></head><body>Unable to tie hash to db '.
+ 'file</body></html>');
+ }
+ if ($compiledresult) {
+ $resultflag=1;
+ }
+
+ $r->print(<<RESULTS);
+$compiledresult
+RESULTS
+ my $percent=sprintf('%3.0f',($servercount/$servernum*100));
+ }
+ }
+ unless ($resultflag) {
+ $r->print("\nThere were no results that matched your query\n");
+ }
+# $r->print('<script type="text/javascript">'.'popwin.close()</script>'."\n"); $r->rflush();
+ $r->print(<<RESULTS);
+</body>
+</html>
+RESULTS
+}
+
+# ------------------------------------------------------ Detailed Citation View
+sub detailed_citation_view {
+ my ($title,$author,$subject,$url,$keywords,$version,
+ $notes,$shortabstract,$mime,$lang,
+ $creationdate,$lastrevisiondate,$owner,$copyright,
+ $hostname,$httphost,$extrashow)=@_;
+ 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>
+<b>Subject:</b> $subject<br />
+<b>Keyword(s):</b> $keywords<br />
+<b>Notes:</b> $notes<br />
+<b>MIME Type:</b>
+END
+ $result.=&Apache::loncommon::filedescription($mime);
+ $result.=<<END;
+<br />
+<b>Language:</b>
+END
+ $result.=&Apache::loncommon::languagedescription($lang);
+ $result.=<<END;
+<br />
+<b>Copyright/Distribution:</b>
+END
+ $result.=&Apache::loncommon::copyrightdescription($copyright);
+ $result.=<<END;
+<br />
+</p>
+$extrashow
+<p>
+$shortabstract
</p>
END
+ return $result;
}
- unless ($compiledresult) {
- $compiledresult="There were no results that matched your query";
+# ---------------------------------------------------------------- Summary View
+sub summary_view {
+ my ($title,$author,$subject,$url,$keywords,$version,
+ $notes,$shortabstract,$mime,$lang,
+ $creationdate,$lastrevisiondate,$owner,$copyright,
+ $hostname,$httphost,$extrashow)=@_;
+ my $cprtag=&Apache::loncommon::copyrightdescription($copyright);
+ my $result=<<END;
+<a href="http://$httphost$url" TARGET='search_preview'>$author</a><br />
+$title<br />
+$owner -- $lastrevisiondate<br />
+$cprtag<br />
+$extrashow
+</p>
+END
+ return $result;
+}
+
+# -------------------------------------------------------------- Fielded Format
+sub fielded_format_view {
+ my ($title,$author,$subject,$url,$keywords,$version,
+ $notes,$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 $result=<<END;
+<b>URL: </b> <A HREF="http://$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<br />
+<b>Language:</b> $language<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<br />
+<b>Repository Location:</b> $hostname<br />
+<b>Abstract:</b> $shortabstract<br />
+$extrashow
+</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,$extrashow)=@_;
+ my $cprtag=&Apache::loncommon::copyrightdescription($copyright);
+ my $mimetag=&Apache::loncommon::filedescription($mime);
+ my $language=&Apache::loncommon::languagedescription($lang);
+ my $result=<<END;
+<pre>
+<LonCapaResource>
+<url>$url</url>
+<title>$title</title>
+<author>$author</author>
+<subject>$subject</subject>
+<keywords>$keywords</keywords>
+<notes>$notes</notes>
+<mimeInfo>
+<mime>$mime</mime>
+<mimetag>$mimetag</mimetag>
+</mimeInfo>
+<languageInfo>
+<language>$lang</language>
+<languagetag>$language</languagetag>
+</languageInfo>
+<creationdate>$creationdate</creationdate>
+<lastrevisiondate>$lastrevisiondate</lastrevisiondate>
+<owner>$owner</owner>
+<copyrightInfo>
+<copyright>$copyright</copyright>
+<copyrighttag>$cprtag</copyrighttag>
+</copyrightInfo>
+<repositoryLocation>$hostname</repositoryLocation>
+<shortabstract>$shortabstract</shortabstract>
+</LonCapaResource>
+</pre>
+$extrashow
+END
+ return $result;
+}
+
+# ---------------------------------------------------- see if a field is filled
+sub filled {
+ my ($field)=@_;
+ if ($field=~/\S/ && $field ne 'any') {
+ return 1;
+ }
+ else {
+ return 0;
}
+}
-# Question... allow to ask question from this page, or click to
-# search again?
+# ---------------- Message to output when there are not enough fields filled in
+sub output_blank_field_error {
+ my ($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();' />
+$closebutton
+<hr />
+<h3>Helpful Message</h3>
+<p>
+Incorrect search query due to blank entry fields.
+You need to fill in the relevant
+fields on the search page in order for a query to be
+processed.
+</p>
+</body>
+</html>
+RESULTS
+}
+
+# ----------------------------------------------------------- Output date error
+sub output_date_error {
+ my ($r,$message)=@_;
+ # 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
+ $r->print(<<RESULTS);
</head>
<body bgcolor="#ffffff">
-<img align=right src=/adm/lonIcons/lonlogos.gif>
+<img align='right' src='/adm/lonIcons/lonlogos.gif' />
<h1>Search Catalog</h1>
<form method="post" action="/adm/searchcat">
-<hr>
-<h3>Search Query</h3>
+$persistent
+<input type='button' value='Revise search request'
+onClick='this.form.submit();' />
+$closebutton
+<hr />
+<h3>Helpful Message</h3>
<p>
-$expression
+$message
</p>
-<h3>Search Results</h3>
-$compiledresult
</body>
</html>
RESULTS
+}
- return OK;
+# --------- settings whenever the user causes the search window to be launched
+sub start_fresh_session {
+ delete $hash{'mode_catalog'};
+ foreach (keys %hash) {
+ if ($_ =~ /^pre_/) {
+ delete $hash{$_};
+ }
+ if ($_ =~ /^store/) {
+ delete $hash{$_};
+ }
+ }
}
1;
+
__END__
+
+=head1 NAME
+
+Apache::lonsearchcat - mod_perl module for handling a searchable catalog
+
+=head1 SYNOPSIS
+
+Invoked by /etc/httpd/conf/srm.conf:
+
+ <Location /adm/searchcat>
+ PerlAccessHandler Apache::lonacc
+ SetHandler perl-script
+ PerlHandler Apache::lonsearchcat
+ ErrorDocument 403 /adm/login
+ ErrorDocument 500 /adm/errorhandler
+ </Location>
+
+=head1 INTRODUCTION
+
+This module enables searching for a distributed browseable catalog.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 BEGIN SUBROUTINE
+
+This routine is only run once after compilation.
+
+=over 4
+
+=item *
+
+Initializes %language hash table.
+
+=item *
+
+Initializes %cprtag hash table (for copyright.tab).
+
+=item *
+
+Initializes %mimetag hash table (for filetypes.tab).
+
+=item *
+
+Initializes %hostdomains and hostips hash table (for hosts.tab).
+
+=back
+
+=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) : outputs
+an error message specific to bad date format.
+
+=back
+
+=cut