--- loncom/homework/bridgetask.pm	2006/05/09 19:01:19	1.146
+++ loncom/homework/bridgetask.pm	2006/05/25 19:39:13	1.155
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: bridgetask.pm,v 1.146 2006/05/09 19:01:19 albertel Exp $
+# $Id: bridgetask.pm,v 1.155 2006/05/25 19:39:13 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -40,7 +40,7 @@ use Apache::slotrequest();
 use Time::HiRes qw( gettimeofday tv_interval );
 
 BEGIN {
-    &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
+    &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Question','Instance','InstanceText','Criteria','ClosingParagraph'));
 }
 
 sub initialize_bridgetask {
@@ -79,39 +79,56 @@ sub proctor_check_auth {
 		    $authenticated=1;
 		}
 	    }
-	    if ($authenticated && $type eq 'Task') {
-		# increment version
-		my $version=
-		    $Apache::lonhomework::history{'resource.0.version'};
-		$version++;
-
-		#clean out all current results
-		foreach my $key (keys(%Apache::lonhomework::history)) {
-		    if ($key=~/^resource\.0\./) {
-			$Apache::lonhomework::results{$key}='';
-		    }
-		}
-		
-		#setup new version and who did it
-		$Apache::lonhomework::results{'resource.0.version'}=$version;
-		$Apache::lonhomework::results{"resource.$version.0.checkedin"}=
-		    $user.':'.$domain;
-		$Apache::lonhomework::results{"resource.$version.0.checkedin.slot"}=
-		    $slot_name;
-
+	    if ($authenticated) {
+		&create_new_version($type,$user,$domain,$slot_name);
 		return 1;
-	    } elsif ($authenticated && $type eq 'problem') {
-		&Apache::lonxml::debug("authed $slot_name");
-		$Apache::lonhomework::results{"resource.0.checkedin"}=
-		    $user.':'.$domain;
-		$Apache::lonhomework::results{"resource.0.checkedin.slot"}=
-		    $slot_name;
 	    }
 	}
     }
     return 0;
 }
 
+sub create_new_version {
+    my ($type,$user,$domain,$slot_name) = @_;
+    if ($type eq 'Task') {
+	# increment version
+	my $version=
+	    $Apache::lonhomework::history{'resource.0.version'};
+	$version++;
+	&Apache::lonxml::debug("Making version $version");
+	#clean out all current results
+	foreach my $key (keys(%Apache::lonhomework::history)) {
+	    if ($key=~/^resource\.0\./) {
+		$Apache::lonhomework::results{$key}='';
+	    }
+	}
+	
+	#setup new version and who did it
+	$Apache::lonhomework::results{'resource.0.version'}=$version;
+	if (defined($user) && defined($domain)) {
+	    $Apache::lonhomework::results{"resource.$version.0.checkedin"}=
+		$user.':'.$domain;
+	} else {
+	    $Apache::lonhomework::results{"resource.$version.0.checkedin"}=
+		$env{'user.name'}.':'.$env{'user.domain'};
+	}
+	if (defined($slot_name)) {
+	    $Apache::lonhomework::results{"resource.$version.0.checkedin.slot"}=
+		$slot_name;
+	}
+    } elsif ($type eq 'problem') {
+	&Apache::lonxml::debug("authed $slot_name");
+	if (defined($user) && defined($domain)) {
+	    $Apache::lonhomework::results{"resource.0.checkedin"}=
+		$user.':'.$domain;
+	}
+	if (defined($slot_name)) {
+	    $Apache::lonhomework::results{"resource.0.checkedin.slot"}=
+		$slot_name;
+	}
+    }
+}
+
 sub get_version {
     my ($version,$previous);
     if ($env{'form.previousversion'} && 
@@ -120,7 +137,11 @@ sub get_version {
 	$version=$env{'form.previousversion'};
 	$previous=1;
     } else {
-	$version=$Apache::lonhomework::history{'resource.0.version'};
+	if (defined($Apache::lonhomework::results{'resource.0.version'})) {
+	    $version=$Apache::lonhomework::results{'resource.0.version'};
+	} elsif (defined($Apache::lonhomework::history{'resource.0.version'})) {
+	    $version=$Apache::lonhomework::history{'resource.0.version'};
+	}
 	$previous=0;
     }
     if (wantarray) {
@@ -223,6 +244,12 @@ sub add_request_another_attempt_button {
     if (!$text) { $text="Request another attempt"; }
     my $result;
     my $symb=&Apache::lonnet::symbread();
+    # not a slot access based resource
+    my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
+    if ($useslots =~ /^\s*no\s*$/i) {
+	return '';
+    }
+
     my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
     my $action='get_reservation';
     if ($slot_name) {
@@ -278,7 +305,8 @@ sub show_task {
 		       ( $status eq 'NOT_IN_A_SLOT') ||
 		       ( $status eq 'NEEDS_CHECKIN') ||
 		       ( $status eq 'WAITING_FOR_GRADE') ||
-		       ( $status eq 'INVALID_ACCESS') )) {
+		       ( $status eq 'INVALID_ACCESS') ||
+		       ( &get_version() eq ''))) {
 	return 0;
     }
     if ($env{'form.donescreen'}) { return 0; }
@@ -395,7 +423,8 @@ sub start_Task {
     }
 
     if ($target eq 'web' && $env{'request.state'} ne 'construct') {
-	if ($Apache::lonhomework::modifygrades) {
+	if ($Apache::lonhomework::queuegrade
+	    || $Apache::lonhomework::modifygrades) {
 	    $result.='<form name="gradesubmission" method="post" action="';
 	    my $uri=$env{'request.uri'};
 	    if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
@@ -428,6 +457,14 @@ sub start_Task {
 	my ($version,$previous)=&get_version();
 	($status,$accessmsg,my $slot_name,$slot) = 
 	    &Apache::lonhomework::check_slot_access('0','Task');
+	if ($status eq 'CAN_ANSWER' && $version eq '') {
+	    &create_new_version('Task',undef,undef,$slot_name);
+	    &add_to_queue('gradingqueue',{'type' => 'Task',
+					  'time' => time,
+					  'slot' => $slot_name});
+	    ($version,$previous)=&get_version();
+	}
+
 	push(@Apache::inputtags::status,$status);
 	$Apache::inputtags::slot_name=$slot_name;
 	my $expression='$external::datestatus="'.$status.'";';
@@ -495,8 +532,12 @@ DONESCREEN
 		if ($status eq 'NEEDS_CHECKIN') {
 		    if(&proctor_check_auth($slot_name,$slot,'Task')
 		       && defined($Apache::inputtags::slot_name)) {
-			my $result=&add_to_queue('gradingqueue',
-						 [$Apache::inputtags::slot_name]);
+			my $result=
+			    &add_to_queue('gradingqueue',
+					  {'type' => 'Task',
+					   'time' => time,
+					   'slot' => 
+					       $Apache::inputtags::slot_name});
 			&Apache::lonxml::debug("add_to_queue said $result");
 		    }
 		}
@@ -802,11 +843,19 @@ DONEBUTTON
 		    my $bt_status=$Apache::lonhomework::history{"resource.$version.0.status"};
 		    my $title=&Apache::lonnet::gettitle();
 
+		    my $start_time;
+
 		    my $slot_name=
 			$Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
-		    my %slot=&Apache::lonnet::get_slot($slot_name);
-		    my $start_time=
-			&Apache::lonlocal::locallocaltime($slot{'starttime'});
+		    if ($slot_name) {
+			my %slot=&Apache::lonnet::get_slot($slot_name);
+
+			$start_time=$slot{'starttime'}
+		    } else {
+			$start_time= 
+			    &Apache::lonnet::EXT('resource.0.opendate');
+		    }
+		    $start_time=&Apache::lonlocal::locallocaltime($start_time);
 
 		    my $status = "\n<div class='LC_$bt_status LC_criteria'>\n";
 		    
@@ -835,6 +884,7 @@ DONEBUTTON
 			    $man_count++;
 			}
 		    }
+		    
 		    my $opt_req=&Apache::lonxml::get_param('OptionalRequired',
 							 $parstack,$safeeval);
 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
@@ -843,8 +893,6 @@ DONEBUTTON
 		    my $internal_location=&internal_location();
 		    $result=~s/\Q$internal_location\E/$status/;
 		}
-	    } 
-	    if ($target eq 'web') {
 		$result.="\n</div>\n".
 		    &Apache::loncommon::end_page({'discussion' => 1});
 	    }
@@ -870,9 +918,18 @@ DONEBUTTON
 	    }
 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
 	    &Apache::structuretags::finalize_storage();
-	    if ($award eq 'SUBMITTED'
-		&& defined($Apache::inputtags::slot_name)) {
-		&add_to_queue('gradingqueue',[$Apache::inputtags::slot_name]);
+	    if ($award eq 'SUBMITTED') {
+		my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
+		if ($useslots =~ /^\s*no\s*$/i) {
+		    &add_to_queue('gradingqueue',
+				  {'type' => 'Task',
+				   'time' => time});
+		} elsif (defined($Apache::inputtags::slot_name)) {
+		    &add_to_queue('gradingqueue',
+				  {'type' => 'Task',
+				   'time' => time,
+				   'slot' => $Apache::inputtags::slot_name});
+		}
 	    }
 	} elsif ($Apache::lonhomework::results{'INTERNAL_store'}) {
 	    &Apache::structuretags::finalize_storage();
@@ -1011,7 +1068,7 @@ sub move_between_queues {
     } else {
 	$cur_data = ['none'];
     }
-    my $result=&add_to_queue($dest_queue,[$cur_data->[0]]);
+    my $result=&add_to_queue($dest_queue,$cur_data);
     if ($result ne 'ok') {
 	return $result;
     }
@@ -1110,17 +1167,17 @@ sub check_queue_for_key {
 	if (defined($results{"$todo\0locked"})) {
 	    return 'locked';
 	}
-	my $slot;
-	if (ref($results{$todo}) eq 'ARRAY')  {
-	    $slot = $results{$todo}[0];
-	} elsif (ref($results{$todo}) eq 'HASH')  {
-	    $slot = $results{$todo}{'slot'};
-	}
-	if (defined($slot)) {
+	if (my $slot=&slotted_access($results{$todo})) {
 	    my %slot_data=&Apache::lonnet::get_slot($slot);
 	    if ($slot_data{'endtime'} > time) { 
 		return 'in_progress';
 	    }
+	} else {
+	    my ($symb) = &decode_queue_key($todo);
+	    my $due_date = &Apache::lonhomework::due_date('0',$symb);
+	    if ($due_date > time) {
+		return 'in_progress';
+	    }
 	}
 	return 'enqueued';
     }
@@ -1180,8 +1237,15 @@ sub show_queue {
 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
 	} elsif ($key!~/(timestamp|locked)$/) {
 	    $result.="<tr>";
-	    my $slot=$queue{$key}->[0];
-	    my %slot_data=&Apache::lonnet::get_slot($slot);
+	    my ($end_time,$slot_text);
+	    if (my $slot=&slotted_access($queue{$key})) {
+		my %slot_data=&Apache::lonnet::get_slot($slot);
+		$end_time = $slot_data{'endtime'};
+		$slot_text = &mt('Slot: [_1]',$slot);
+	    } else {
+		$end_time = &Apache::lonhomework::due_date('0',$symb);
+		$slot_text = '';
+	    }
 	    if ($with_selects) {
 		my $ekey=&Apache::lonnet::escape($key);
 		my ($action,$description,$status)=('select',&mt('Select'));
@@ -1199,7 +1263,7 @@ sub show_queue {
 		    $seclist.='<input type="hidden" name="chosensections" 
                                value="'.$sec.'" />';
 		}
-		if (time > $slot_data{'endtime'}) {
+		if ($end_time ne '' && time > $end_time) {
 		    $result.=(<<FORM);
 <td>$status</td>
 <td>
@@ -1216,13 +1280,13 @@ sub show_queue {
 FORM
 
                 } else {
-		    $result.='<td>'.&mt("In Progress").'</td>'
+		    $result.='<td>'.&mt("In Progress").'</td><td>&nbsp;</td>'
 		}
 	    }
 	    $result.= "<td>".$fullname->{$uname.':'.$udom}.
 		" <tt>($uname:$udom)</tt> </td>";
-	    $result.='<td>Slot: '.$slot.' End time: '.
-		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
+	    $result.='<td>'.$slot_text.' End time: '.
+		&Apache::lonlocal::locallocaltime($end_time).
 		"</td></tr>";
 	}
     }
@@ -1252,13 +1316,19 @@ sub get_queue_counts {
 	} elsif ($key!~/(timestamp|locked)$/) {
 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
 	    $entries++;
-	    my $slot=$queue{$key}->[0];
-	    if (!exists($slot_cache{$slot})) {
-		my %slot_data=&Apache::lonnet::get_slot($slot);
-		$slot_cache{$slot} = \%slot_data;
-	    }
-	    if (time > $slot_cache{$slot}{'endtime'}) {
-		$ready_to_grade++;
+	    if (my $slot=&slotted_access($queue{$key})) {
+		if (!exists($slot_cache{$slot})) {
+		    my %slot_data=&Apache::lonnet::get_slot($slot);
+		    $slot_cache{$slot} = \%slot_data;
+		}
+		if (time > $slot_cache{$slot}{'endtime'}) {
+		    $ready_to_grade++;
+		}
+	    } else {
+		my $due_date = &Apache::lonhomework::due_date('0',$symb);
+		if ($due_date ne '' && time > $due_date) {
+		    $ready_to_grade++;
+		}
 	    }
 	}
     }
@@ -1292,6 +1362,22 @@ sub queue_key_locked {
     return undef;
 }
 
+sub slotted_access {
+    my ($queue_entry) = @_;
+    if (ref($queue_entry) eq 'ARRAY') {
+	if (defined($queue_entry->[0])) {
+	    return $queue_entry->[0];
+	}
+	return undef;
+    } elsif (ref($queue_entry) eq 'HASH') {
+	if (defined($queue_entry->{'slot'})) {
+	    return $queue_entry->{'slot'};
+	}
+	return undef;
+    }
+    return undef;
+}
+
 sub pick_from_queue_data {
     my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
     my @possible; # will hold queue entries that are valid to be selected
@@ -1306,17 +1392,31 @@ sub pick_from_queue_data {
 		next;
 	    }
 	}
-	my $slot=$queuedata->{$key}[0];
-	my %slot_data=&Apache::lonnet::get_slot($slot);
-	if ($slot_data{'endtime'} > time) { 
-	    &Apache::lonxml::debug("not time");
-	    next;
+	my $end_time;
+	if (my $slot=&slotted_access($queuedata->{$key})) {
+	    &Apache::lonxml::debug("looking at slot $slot");
+	    my %slot_data=&Apache::lonnet::get_slot($slot);
+	    if ($slot_data{'endtime'} < time) { 
+		$end_time = $slot_data{'endtime'};
+	    } else {
+		&Apache::lonxml::debug("not time ".$slot_data{'endtime'});
+		next;
+	    }
+	} else {
+	    my $due_date = &Apache::lonhomework::due_date('0',$symb);
+	    if ($due_date < time) {
+		$end_time = $due_date;
+	    } else {
+		&Apache::lonxml::debug("not time $due_date");
+		next;
+	    }
 	}
+	
 	if (exists($queuedata->{"$key\0locked"})) {
 	    &Apache::lonxml::debug("someone already has um.");
 	    next;
 	}
-	push(@possible,[$key,$slot_data{'endtime'}]);
+	push(@possible,[$key,$end_time]);
     }
     if (@possible) {
         # sort entries in order by slot end time
@@ -1512,8 +1612,6 @@ sub select_user {
 		$seclist.='<input type="hidden" name="chosensections" 
                                value="'.$sec.'" />';
 	    }
-	    my $studentdis = $student;
-	    $studentdis =~ tr/:/@/;
 	    $result.=<<RESULT;
 <tr>
   <td>
@@ -1525,7 +1623,7 @@ sub select_user {
       <input type="submit" name="submit" value="Regrade" />
       $seclist
     </form>
-  <td>$fullname->{$student} <tt>($studentdis)</tt></td>
+  <td>$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()] <tt>($student)</tt></td>
   <td>
 RESULT
         }
@@ -1619,6 +1717,7 @@ sub get_id {
 }
 
 my %dimension;
+sub start_Question { return &start_Dimension(@_); }
 sub start_Dimension {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     undef(%dimension);
@@ -1661,9 +1760,11 @@ sub get_instance {
 	}
 	@instances = &Math::Random::random_permutation(@instances);
 	$instance  = $instances[($version-1)%scalar(@instances)];
-	$Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
-	    $instance;
-	$Apache::lonhomework::results{'INTERNAL_store'} = 1; 
+	if ($version =~ /^\d$/) {
+	    $Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
+		$instance;
+	    $Apache::lonhomework::results{'INTERNAL_store'} = 1; 
+	}
 	&Apache::response::poprandomnumber();
 	return $instance;
     }
@@ -1672,9 +1773,11 @@ sub get_instance {
 {
     my $last_link;
     sub link {
-	my ($instance,$id) = @_;
-	return 'LC_GRADING_criteria_'.$instance.'_'.$id;
+	my ($id) = @_;
+	$id =~ s/\./_/g;
+	return 'LC_GRADING_criteria_'.$id;
     }
+    sub end_Question { return &end_Dimension(@_); }
     sub end_Dimension {
 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
 	my $result=&Apache::lonxml::endredirection();
@@ -1710,11 +1813,12 @@ sub get_instance {
 		    my $man_passed=0;
 		    my $opt_count=0;
 		    my $opt_passed=0;
-		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
-			if ($dimension{$instance.'.criteria.'.$id.'.mandatory'} 
+		    foreach my $id ( @{$dimension{$instance.'.criterias'}},
+				     @{$dimension{'criterias'}} ) {
+			if ($dimension{'criteria.'.$id.'.mandatory'} 
 			    eq 'N') {
 			    $opt_count++;
-			    if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"} eq 'pass') {
+			    if ($Apache::lonhomework::history{"resource.$version.0.$dim.$id.status"} eq 'pass') {
 				$opt_passed++;
 			    }
 			} else {
@@ -1725,17 +1829,24 @@ sub get_instance {
 			}
 		    }
 		    if ($man_passed eq $man_count) { $man_passed='all'; }
+
 		    my $opt_req=$dimension{$instance.'.optionalrequired'};
-		    if ($opt_req !~ /\S/) { $opt_req='0'; }
+		    if ($opt_req !~ /\S/) {
+			$opt_req=
+			    &Apache::lonxml::get_param('OptionalRequired',
+						       $parstack,$safeeval);
+			if ($opt_req !~ /\S/) { $opt_req = 0; }
+		    }
 		    $dim_info.="\n<p>".&mt('You passed [_1] of the [_2] mandatory components and [_3] of the [_4] optional components, of which you were required to pass [_5].',$man_passed,$man_count,$opt_passed,$opt_count,$opt_req)."</p>\n</div>";
 
 		    my $internal_location=&internal_location($dim);
 		    $result=~s/\Q$internal_location\E/$dim_info/;
 
-		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
-			my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"};
-			my $comment=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"};
-			my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
+		    foreach my $id (@{$dimension{$instance.'.criterias'}},
+				    @{$dimension{'criterias'}}) {
+			my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$id.status"};
+			my $comment=$Apache::lonhomework::history{"resource.$version.0.$dim.$id.comment"};
+			my $mandatory=($dimension{'criteria.'.$id.'.mandatory'} ne 'N');
 			if ($mandatory) {
 			    $mandatory='Mandatory';
 			} else {
@@ -1748,15 +1859,14 @@ sub get_instance {
 			}
 			my $status_display=$status;
 			$status_display=~s/^([a-z])/uc($1)/e;
-			@Apache::scripttag::parser_env = @_;
 			$result.=
 			    '<div class="LC_'.$status.' LC_criteria"><h4>'
 			    .$mandatory.' Criteria</h4><p>';
 			@Apache::scripttag::parser_env = @_;
-			$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
+			$result.=&Apache::scripttag::xmlparse($dimension{'criteria.'.$id});
 			$result.='</p><p class="LC_grade">'.$status_display.'</p>';
-			if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}) {
-			    $result.='<p class="LC_comment">'.&mt('Comment: [_1]',$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</p>';
+			if ($Apache::lonhomework::history{"resource.$version.0.$dim.$id.comment"}) {
+			    $result.='<p class="LC_comment">'.&mt('Comment: [_1]',$Apache::lonhomework::history{"resource.$version.0.$dim.$id.comment"}).'</p>';
 			}
 			$result.='</div>';
 		    }
@@ -1768,15 +1878,16 @@ sub get_instance {
 	    &Apache::scripttag::xmlparse($dimension{'intro'});
 	    @Apache::scripttag::parser_env = @_;
 	    &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
-	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
-		my $link=&link($instance,$id);
-		my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"};
+	    foreach my $id (@{$dimension{$instance.'.criterias'}},
+			    @{$dimension{'criterias'}} ) {
+		my $link=&link($id);
+		my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$id.status"};
 		$result.='<div class="LC_GRADING_criteria" id="'.$link.'">'."\n".
 		    '<div class="LC_GRADING_criteriatext" id="next_'.$last_link.'">'."\n";
 		@Apache::scripttag::parser_env = @_;
-		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
+		$result.=&Apache::scripttag::xmlparse($dimension{'criteria.'.$id});
 		$result.='</div>'."\n".
-		    #$dimension{$instance.'.criteria.'.$id}.
+		    #$dimension{'criteria.'.$id}.
 		    '<div class="LC_GRADING_grade">'."\n".
 		    '<label class="LC_GRADING_ungraded"><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label>'."\n".
 		    '<label class="LC_GRADING_fail"><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label>'."\n".
@@ -1784,14 +1895,14 @@ sub get_instance {
 		    '<label class="LC_GRADING_review"><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label>'."\n".
 		    '</div>'."\n".
 		    '<label class="LC_GRADING_comment">'.&mt('Additional Comment for Student')."\n".
-		    '<textarea class="LC_GRADING_comment_area" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</textarea>'."\n".
+		    '<textarea class="LC_GRADING_comment_area" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.0.$dim.$id.comment"}).'</textarea>'."\n".
 		    '</label>'."\n".
 		    '<ul class="LC_GRADING_navbuttons">'."\n".
 		    '<li><a href="#'.$last_link.'">Prev</a></li>'."\n".
 		    '<li><a href="#next_'.$link.'">Next</a></li>'."\n".
 		    '</ul>'."\n".
                     '</div>'."\n";
-		$result.=&grading_history($version,$dim,$instance,$id);
+		$result.=&grading_history($version,$dim,$id);
 		$last_link=$link;
 	    }
 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
@@ -1799,11 +1910,17 @@ sub get_instance {
 	    my $mandatory_failed=0;
 	    my $ungraded=0;
 	    my $review=0;
-	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
-		my $link=&link($instance,$id);
-		my $status=$Apache::lonhomework::results{"resource.$version.0.$dim.$instance.$id.status"}=$env{'form.HWVAL_'.$link};
-		$Apache::lonhomework::results{"resource.$version.0.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_'.$link};
-		my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
+
+	    @Apache::scripttag::parser_env = @_;
+	    $result.=&Apache::scripttag::xmlparse($dimension{'intro'});
+	    foreach my $id (@{$dimension{$instance.'.criterias'}},
+			    @{$dimension{'criterias'}}) {
+		my $link=&link($id);
+		@Apache::scripttag::parser_env = @_;
+		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});
+		my $status=$Apache::lonhomework::results{"resource.$version.0.$dim.$id.status"}=$env{'form.HWVAL_'.$link};
+		$Apache::lonhomework::results{"resource.$version.0.$dim.$id.comment"}=$env{'form.HWVAL_comment_'.$link};
+		my $mandatory=($dimension{'criteria.'.$id.'.mandatory'} ne 'N');
 		if ($status eq 'pass') {
 		    if (!$mandatory) { $optional_passed++; }
 		} elsif ($status eq 'fail') {
@@ -1816,7 +1933,15 @@ sub get_instance {
 		    $ungraded++;
 		}
 	    }
-	    if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
+	    # FIXME optional required can apply to only <instance> right now...
+	    my $opt_req=$dimension{$instance.'.optionalrequired'};
+	    if ($opt_req !~ /\S/) {
+		$opt_req=
+		    &Apache::lonxml::get_param('OptionalRequired',
+					       $parstack,$safeeval);
+		if ($opt_req !~ /\S/) { $opt_req = 0; }
+	    }
+	    if ($optional_passed < $opt_req) {
 		$mandatory_failed++;
 	    }
 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
@@ -1842,12 +1967,12 @@ sub get_instance {
 }
 
 sub grading_history {
-    my ($version,$dim,$instance,$criteria) = @_;
+    my ($version,$dim,$id) = @_;
     if (!&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
 	return '';
     }
     my ($result,$grader);
-    my $scope="resource.$version.0.$dim.$instance.$criteria";
+    my $scope="resource.$version.0.$dim.$id";
     foreach my $t (1..$Apache::lonhomework::history{'version'}) {
 	if (exists($Apache::lonhomework::history{$t.':resource.0.regrader'})) {
 	    my ($gname,$gdom) = 
@@ -1876,11 +2001,12 @@ sub grading_history {
 sub start_IntroParagraph {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;
-    if ($target eq 'web' || $target eq 'webgrade') {
-	if ($tagstack->[-2] eq 'Dimension') {
-	    $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser,$style);
-	
-	} elsif ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
+    if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
+	if ($tagstack->[-2] eq 'Dimension' || $tagstack->[-2] eq 'Question' ) {
+	    $dimension{'intro'}=
+		&Apache::lonxml::get_all_text('/introparagraph',
+					      $parser,$style);
+       	} elsif ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
 	    &Apache::lonxml::startredirection();
 	}
 	
@@ -1917,7 +2043,7 @@ sub start_InstanceText {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $instance_id=$Apache::bridgetask::instance[-1];
     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser,$style);
-    if ($target eq 'web' || $target eq 'webgrade') {
+    if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
 	$dimension{$instance_id.'.text'}=$text;
     }
     return '';
@@ -1929,14 +2055,21 @@ sub end_InstanceText {
 
 sub start_Criteria {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-    my $instance_id=$Apache::bridgetask::instance[-1];
     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser,$style);
     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
 	my $id=&get_id($parstack,$safeeval);
-	$dimension{$instance_id.'.criteria.'.$id}=$criteria;
-	$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
-	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
-	push(@{$dimension{$instance_id.'.criterias'}},$id);
+	if (&Apache::londefdef::is_inside_of($tagstack,'Instance')) {
+	    my $instance_id=$Apache::bridgetask::instance[-1];
+	    $dimension{"criteria.$instance_id.$id"}=$criteria;
+	    $dimension{"criteria.$instance_id.$id.mandatory"}=
+		&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
+	    push(@{$dimension{$instance_id.'.criterias'}},"$instance_id.$id");
+	} else {
+	    $dimension{'criteria.'.$id}=$criteria;
+	    $dimension{'criteria.'.$id.'.mandatory'}=
+		&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
+	    push(@{$dimension{'criterias'}},$id);
+	}
     }
     return '';
 }