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Annotation of loncom/homework/essayresponse.pm, revision 1.12

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # essay (ungraded) style responses
1.5       albertel    3: #
1.12    ! ng          4: # $Id: essayresponse.pm,v 1.11 2002/07/25 20:51:39 ng Exp $
1.5       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: #
1.1       albertel   28: # 4/3 Guy
1.10      ng         29: # July, 2002, H. K. Ng
                     30: #
1.1       albertel   31: package Apache::essayresponse;
                     32: use strict;
                     33: 
1.6       harris41   34: BEGIN {
1.10      ng         35:     &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
1.1       albertel   36: }
                     37: 
                     38: sub start_essayresponse {
1.10      ng         39:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     40:     my $result;
                     41: 
                     42:     if ($target eq 'web') {
                     43: 	my $part= $Apache::inputtags::part;
                     44: 	my $id  = &Apache::response::start_response($parstack,$safeeval);
                     45: 
                     46: 	my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
                     47: 	my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
                     48: 	if ($ncol > 0) {
                     49: 	    $result .='<br />Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
                     50: 		$id.'" value="'.$coll.'" /><br />'.
                     51: 		'(Enter maximum '.$ncol.' collaborators using username or username@domain, e.g. '.
                     52: 		'smithje or smithje@'.$ENV{'user.domain'}.'.)<br />';
                     53: 	    $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
                     54: 	}
                     55:     }
                     56:     return $result;
1.1       albertel   57: }
                     58: 
                     59: sub end_essayresponse {
1.10      ng         60:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     61:     my $part=$Apache::inputtags::part;
                     62:     my $id  = &Apache::response::start_response($parstack,$safeeval);
1.11      ng         63:     my $collaborators = $ENV{'form.HWCOL'.$id};	
                     64:     if ($collaborators =~ /[^\s]/) {
1.12    ! ng         65: 	my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
        !            66: 
        !            67: 	$Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
        !            68: 	    if ($collaborators ne $previous_list);
1.11      ng         69:     }
1.10      ng         70:     if ( $target eq 'grade' ) {
                     71: 	if ( defined $ENV{'form.submitted'}) {
                     72: 	    my $response      = $ENV{'form.HWVAL'.$id};
                     73: 	    if ( $response =~ /[^\s]/) {
                     74: 		$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
                     75: 		$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}="SUBMITTED";
                     76: 		my %previous=&Apache::response::check_for_previous($response,$part,$id);
                     77: 		&Apache::response::handle_previous(\%previous,'SUBMITTED');
                     78: 	    }
                     79: 	}
                     80:     }
1.11      ng         81: 
1.10      ng         82:     &Apache::response::end_response;
                     83:     return '';
                     84: }
                     85: 
                     86: sub check_collaborators {
1.11      ng         87:     my ($ncol,$coll) = @_;
1.10      ng         88:     my %classlist=&Apache::lonnet::dump('classlist',
                     89: 					$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                     90: 					$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                     91:     my (@badcollaborators,$result);
                     92:     my (@collaborators) = split(/\,?\s+/,$coll);
                     93:     foreach (@collaborators) {
                     94: 	my $collaborator = $_;
                     95: 	if (/@/) {
                     96: 	    $collaborator =~ s/@/:/;
                     97: 	} else {
                     98: 	    $collaborator = $_.':'.$ENV{'user.domain'};
                     99: 	}
                    100: 	push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
                    101:     }
                    102:     
                    103:     if (scalar(@badcollaborators)) {
1.11      ng        104: 	$result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
                    105: 	    (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
                    106: 	    join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
1.10      ng        107:     }
                    108:     my $toomany = scalar(@collaborators) - $ncol;
                    109:     if ($toomany > 0) {
                    110: 	$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
                    111: 	    'You have too many collaborators. Please remove '.$toomany.' collaborator'.
                    112: 	    ($toomany > 1 ? 's' :'').'.</td></tr></table>';
                    113:     }
                    114:     return $result;
1.1       albertel  115: }
1.2       albertel  116: 
                    117: 1;
                    118: __END__