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- improving the editability of essayresponses and textfields

    1: # The LearningOnline Network with CAPA
    2: # essay (ungraded) style responses
    3: #
    4: # $Id: essayresponse.pm,v 1.15 2002/08/07 16:23:05 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: # 4/3 Guy
   29: # July, 2002, H. K. Ng
   30: #
   31: package Apache::essayresponse;
   32: use strict;
   33: 
   34: BEGIN {
   35:     &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
   36: }
   37: 
   38: sub start_essayresponse {
   39:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   40:     my $result;
   41:     my $id = &Apache::response::start_response($parstack,$safeeval);
   42:     if ($target eq 'meta') {
   43: 	$result=&Apache::response::meta_package_write('essayresponse');
   44:     } elsif ($target eq 'web') {
   45: 	my $part= $Apache::inputtags::part;
   46: 
   47: 	my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
   48: 	my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
   49: 	$result='<br /><table border="1">';
   50: 	if ($ncol > 0) {
   51: 	    $result .='<tr><td>'.
   52: 		'Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
   53: 		$part.'_'.$id.'" value="'.$coll.'" /><br />'.
   54: 		'(Enter maximum '.$ncol.' collaborators using username or username@domain, e.g. '.
   55: 		'smithje or smithje@'.$ENV{'user.domain'}.'.)<br />';
   56: 	    $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
   57: 	    $result .='</td></tr>';
   58: 	}
   59: 	$result.='<tr><td>'.
   60: 	    '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked>'.
   61: 	    ' Submit text below as answer to receive credit <br />'.
   62: 	    '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no">'.
   63: 	    ' Save text below as a draft answer (not submitting it for credit yet) '.
   64: 	    '</td></tr></table>';
   65:     }
   66:     return $result;
   67: }
   68: 
   69: sub end_essayresponse {
   70:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   71:     my $part          = $Apache::inputtags::part;
   72:     my $id            = $Apache::inputtags::response[-1];
   73:     my $result;
   74:     if ( $target eq 'grade' ) {
   75: 	my $collaborators = $ENV{'form.HWCOL'.$part.'_'.$id};	
   76: 	if ($collaborators =~ /[^\s]/) {
   77: 	    my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
   78: 	    $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
   79: 		if ($collaborators ne $previous_list);
   80: 	}
   81: 	if ( defined $ENV{'form.submitted'}) {
   82: 	    my $response      = $ENV{'form.HWVAL'.$id};
   83: 	    if ( $response =~ /[^\s]/) {
   84: 		my $award;
   85: 		if ($ENV{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
   86: 		    $award='SUBMITTED';
   87: 		} else {
   88: 		    $award='DRAFT';
   89: 		}
   90: 		$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
   91: 		$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
   92: 		my %previous=&Apache::response::check_for_previous($response,$part,$id);
   93: 		&Apache::response::handle_previous(\%previous,$award);
   94: 	    }
   95: 	}
   96:     } elsif ($target eq 'edit') {
   97: 	$result.=&Apache::edit::end_table();
   98:     }
   99: 
  100:     &Apache::response::end_response;
  101:     return $result;
  102: }
  103: 
  104: sub check_collaborators {
  105:     my ($ncol,$coll) = @_;
  106:     my %classlist=&Apache::lonnet::dump('classlist',
  107: 					$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  108: 					$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
  109:     my (@badcollaborators,$result);
  110:     my (@collaborators) = split(/\,?\s+/,$coll);
  111:     foreach (@collaborators) {
  112: 	my $collaborator = $_;
  113: 	if (/@/) {
  114: 	    $collaborator =~ s/@/:/;
  115: 	} else {
  116: 	    $collaborator = $_.':'.$ENV{'user.domain'};
  117: 	}
  118: 	push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
  119:     }
  120:     
  121:     if (scalar(@badcollaborators)) {
  122: 	$result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
  123: 	    (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
  124: 	    join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
  125:     }
  126:     my $toomany = scalar(@collaborators) - $ncol;
  127:     if ($toomany > 0) {
  128: 	$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
  129: 	    'You have too many collaborators. Please remove '.$toomany.' collaborator'.
  130: 	    ($toomany > 1 ? 's' :'').'.</td></tr></table>';
  131:     }
  132:     return $result;
  133: }
  134: 
  135: 1;
  136: __END__