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Annotation of loncom/interface/lonpickcode.pm, revision 1.3

1.1       albertel    1: # The LearningOnline Network
                      2: # Pick a CODE from the list of possible CODEs
                      3: #
1.3     ! albertel    4: # $Id: lonpickcode.pm,v 1.2 2004/04/24 08:31:57 albertel Exp $
1.1       albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
                     28: 
                     29: package Apache::lonpickcode;
                     30: 
                     31: use strict;
                     32: use Apache::Constants qw(:common);
                     33: use Apache::loncommon();
                     34: use Apache::grades();
                     35: use Apache::lonlocal;
                     36: 
                     37: sub get_code_freq {
                     38:     my ($r)=@_;
                     39:     my %codes;
                     40:     my %scantron_config=
                     41: 	&Apache::grades::get_scantron_config($ENV{'form.scantron_format'});
                     42:     $r->rflush();
                     43:     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
                     44:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
                     45: 	my $line=&Apache::grades::scantron_get_line($scanlines,$i);
                     46: 	if ($line=~/^[\s\cz]*$/) { next; }
                     47: 	my $scan_record=
                     48: 	    &Apache::grades::scantron_parse_scanline($line,$i,
                     49: 						     \%scantron_config,
                     50: 						     $scan_data,1);
                     51: 	$codes{$$scan_record{'scantron.CODE'}}++;
                     52: 
                     53:     }
                     54:     return %codes;
                     55: }
                     56: 
                     57: sub get_codes {
                     58:     my $old_name=$ENV{'form.scantron_CODElist'};
                     59:     my $cdom =$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
                     60:     my $cnum =$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
                     61:     my %result=&Apache::lonnet::get('CODEs',[$old_name],$cdom,$cnum);
                     62:     my %allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
                     63:     return %allcodes;
                     64: }
                     65: 
                     66: sub num_matches {
                     67:     my ($code) = @_;
                     68:     my $orig=$ENV{'form.curCODE'};
                     69:     my @code=split(//,$code);
                     70:     my @orig=split(//,$orig);
                     71:     my $same=0;
                     72:     for (my $i=0;$i<scalar(@code);$i++) {
                     73: 	if ($code[$i] eq $orig[$i]) { $same++; }
                     74:     }
                     75:     return $same;
                     76: }
                     77: 
                     78: sub handler {
                     79:     my $r = shift;
                     80:     &Apache::loncommon::content_type($r,'text/html');
                     81:     $r->send_http_header;
                     82:     return OK if $r->header_only;
                     83: 
                     84:     $r->print(<<ENDDOCUMENT);
                     85: <html>
                     86:   <head>
                     87:     <title>The LearningOnline Network with CAPA</title>
                     88:   </head>
                     89: ENDDOCUMENT
                     90: 
                     91: 
                     92:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                     93: 					    ['curCODE','scantron_selectfile',
                     94: 					     'form','scantron_format',
                     95: 					     'scantron_CODElist']);
                     96: 
1.2       albertel   97:     if  (!($ENV{'request.course.id'}) && 
1.1       albertel   98: 	 (&Apache::lonnet::allowed('usc',$ENV{'request.course.id'}))) {
                     99: 	$r->print('<body>Access not allowed.</body>');
                    100:         return OK;
                    101:     }
                    102: 
                    103:     $r->print(&Apache::loncommon::bodytag("Selecting a CODE"));
                    104:     $r->print(<<ENDSCRIPT);
                    105: <script>
1.2       albertel  106: function gochoose(newcode) {
1.3     ! albertel  107:     opener.document.$ENV{'form.form'}.scantron_CODE_selectedvalue.value=newcode;
        !           108:     var slct=opener.document.$ENV{'form.form'}.scantron_CODE_resolution;
1.1       albertel  109:     var i;
                    110:     for (i=0;i<slct.length;i++) {
1.2       albertel  111:         if (slct[i].value=='use_found') { slct[i].checked=true; }
1.1       albertel  112:     }
                    113:     self.close();
                    114: }
                    115: </script>
                    116: ENDSCRIPT
                    117: 
                    118: 
                    119:     $r->print("<p>The CODE on the paper is <tt><b>".$ENV{'form.curCODE'}.
                    120: 	      "</b></tt>. Please Select a new one.</p>\n".'<form>');
                    121:     my %codes=&get_codes();
                    122:     my %code_freq=&get_code_freq($r);
                    123:     my $num_matches=&num_matches($ENV{'form.curCODE'});
                    124:     for (my $i=$num_matches;$i>=0;$i--) {
                    125: 	my $to_print="<p> CODEs with $i matches</p>";
                    126: 	$to_print.='<table border="1"><tr><td></td><td>CODE</td><td># of exams using this CODE</td>';
                    127: 	my $print;
                    128: 	foreach my $code (sort(keys(%codes))) {
                    129: 	    if (&num_matches($code) != $i) { next; }
                    130: 	    $print=1;
                    131: 	    my $count=$code_freq{$code};
                    132: 	    if (!$count) { $count=0; }
                    133: 	    $to_print.='<tr><td>'.
                    134: 		      '<input type="button" value="'.&mt('Select').
                    135: 		      '" onClick="gochoose(\''.$code.'\')" /></td>'.
                    136: 		      '<td><tt>'.$code.'</tt></td><td> <tt>'.$count.
                    137: 		      '</tt></td></tr>';
                    138: 	    delete($codes{$code});
                    139: 	}
                    140: 	$to_print.='</table>';
                    141: 	if ($print) { $r->print($to_print); }
                    142:     }
                    143:     $r->print('</form></body></html>');
                    144:     return OK;
                    145: } 
                    146: 
                    147: 1;
                    148: __END__