--- loncom/homework/essayresponse.pm	2001/04/04 19:17:50	1.1
+++ loncom/homework/essayresponse.pm	2002/07/19 20:43:11	1.9
@@ -1,30 +1,80 @@
 # The LearningOnline Network with CAPA
 # essay (ungraded) style responses
+#
+# $Id: essayresponse.pm,v 1.9 2002/07/19 20:43:11 ng Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
 # 4/3 Guy
 package Apache::essayresponse;
 use strict;
 
-sub BEGIN {
+BEGIN {
   &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
 }
 
 sub start_essayresponse {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+  my $result;
   my $id = &Apache::response::start_response($parstack,$safeeval);
-  return '';
+  if ($target eq 'meta') {
+    $result=&Apache::response::meta_package_write('essayresponse');
+  }
+  if ($target eq 'web') {
+      my $id  = $Apache::inputtags::response['-1'];
+      my $part= $Apache::inputtags::part;
+      my $symb= &Apache::lonnet::symbread($ENV{'form.url'});
+#      my $ncol= &Apache::lonnet::EXT('parameter\_$part\_$id\_maxcollaborators',$symb);
+      my $ncol= &Apache::lonnet::get($symb,['parameter\_$part\_$id\_maxcollaborators']);
+      $result ='<br />Collaborators: <input type="text" size="40" max="70" name="HWCOL'.
+              $Apache::inputtags::response['-1'].'" /><br />'.$ncol.':<br>'.
+	      '(Enter collaborators using username or username@domain, e.g. smithje or doej@msu or smithje@fsu.)';
+  }
+  return $result;
 }
 
 sub end_essayresponse {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ( $target eq 'grade' ) {
     if ( defined $ENV{'form.submitted'}) {
-      my $id = $Apache::inputtags::response['-1'];
-      $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
-      $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}="SUBMITTED";
-      
+      my $id            = $Apache::inputtags::response['-1'];
+      my $response      = $ENV{'form.HWVAL'.$id};
+      my $collaborators = $ENV{'form.HWCOL'.$id};
+#      my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
+#      my $collaborators = $ENV{'form.HWCOL'.$Apache::inputtags::response['-1']};
+      if ( $response =~ /[^\s]/) {
+	my $part=$Apache::inputtags::part;
+	$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
+	$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}="SUBMITTED";
+	$Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators;
+	my %previous=&Apache::response::check_for_previous($response,$part,$id);
+	&Apache::response::handle_previous(\%previous,'SUBMITTED');
+      }
     }
   }
-
   &Apache::response::end_response;
   return '';
 }
+
+1;
+__END__