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Annotation of loncom/homework/essayresponse.pm, revision 1.10

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # essay (ungraded) style responses
1.5       albertel    3: #
1.10    ! ng          4: # $Id: essayresponse.pm,v 1.9 2002/07/19 20:43:11 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);
        !            63:     if ( $target eq 'grade' ) {
        !            64: 	if ( defined $ENV{'form.submitted'}) {
        !            65: 	    my $response      = $ENV{'form.HWVAL'.$id};
        !            66: 	    if ( $response =~ /[^\s]/) {
        !            67: 		$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
        !            68: 		$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}="SUBMITTED";
        !            69: 		my %previous=&Apache::response::check_for_previous($response,$part,$id);
        !            70: 		&Apache::response::handle_previous(\%previous,'SUBMITTED');
        !            71: 	    }
        !            72: 	}
        !            73:     }
        !            74:     my $collaborators = $ENV{'form.HWCOL'.$id};	
        !            75:     if ($collaborators =~ /[^\s]/) {
        !            76: 	my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
        !            77: 	my ($badlist,$toomany) = &check_collaborators($ncol,$collaborators,'yes');
1.9       ng         78: 	$Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators;
1.10    ! ng         79: 	$Apache::lonhomework::results{"resource.$part.$id.badcollaborators"}=(join(', ',@$badlist)) 
        !            80: 	    if (scalar(@$badlist) > 0);
        !            81: 	$Apache::lonhomework::results{"resource.$part.$id.toomanycollaborators"}=$$toomany 
        !            82: 	    if ($toomany > 0);
        !            83:     }
        !            84:     &Apache::response::end_response;
        !            85:     return '';
        !            86: }
        !            87: 
        !            88: sub check_collaborators {
        !            89:     my ($ncol,$coll,$retbad) = @_;
        !            90:     my %classlist=&Apache::lonnet::dump('classlist',
        !            91: 					$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
        !            92: 					$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
        !            93:     my (@badcollaborators,$result);
        !            94:     my (@collaborators) = split(/\,?\s+/,$coll);
        !            95:     foreach (@collaborators) {
        !            96: 	my $collaborator = $_;
        !            97: 	if (/@/) {
        !            98: 	    $collaborator =~ s/@/:/;
        !            99: 	} else {
        !           100: 	    $collaborator = $_.':'.$ENV{'user.domain'};
        !           101: 	}
        !           102: 	push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
        !           103:     }
        !           104:     
        !           105:     if (scalar(@badcollaborators)) {
        !           106: 	my $badlist = sprintf ("The following user%s invalid: ",
        !           107: 			       (scalar(@badcollaborators) > 1 ? 's are' : ' is'));
        !           108: 	$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
        !           109: 	    $badlist.join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
        !           110:     }
        !           111:     my $toomany = scalar(@collaborators) - $ncol;
        !           112:     if ($toomany > 0) {
        !           113: 	$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
        !           114: 	    'You have too many collaborators. Please remove '.$toomany.' collaborator'.
        !           115: 	    ($toomany > 1 ? 's' :'').'.</td></tr></table>';
        !           116:     }
        !           117:     return (\@badcollaborators,\$toomany) if ($retbad eq 'yes');
        !           118:     return $result;
1.1       albertel  119: }
1.2       albertel  120: 
                    121: 1;
                    122: __END__