[BACK]Return to lonpickcode.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface
File:  [LON-CAPA] / loncom / interface / lonpickcode.pm
Revision 1.3: download - view: text, annotated - select for diffs
Sat Apr 24 09:01:52 2004 UTC (20 years, 1 month ago) by albertel
Branches: MAIN
CVS tags: HEAD
- fixup some form element names
- preserve new form parameters between screens
- gets the selected value from the correct field on the screen
(Correctioning works for all cases except when forcing through a dupicated ID)

    1: # The LearningOnline Network
    2: # Pick a CODE from the list of possible CODEs
    3: #
    4: # $Id: lonpickcode.pm,v 1.3 2004/04/24 09:01:52 albertel Exp $
    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: 
   97:     if  (!($ENV{'request.course.id'}) && 
   98: 	 (&Apache::lonnet::allowed('usc',$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:     $r->print(<<ENDSCRIPT);
  105: <script>
  106: function gochoose(newcode) {
  107:     opener.document.$ENV{'form.form'}.scantron_CODE_selectedvalue.value=newcode;
  108:     var slct=opener.document.$ENV{'form.form'}.scantron_CODE_resolution;
  109:     var i;
  110:     for (i=0;i<slct.length;i++) {
  111:         if (slct[i].value=='use_found') { slct[i].checked=true; }
  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__
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