[LON-CAPA-cvs] cvs: loncom /homework bridgetask.pm

albertel lon-capa-cvs@mail.lon-capa.org
Fri, 27 May 2005 17:08:08 -0000


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--albertel1117213688
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albertel		Fri May 27 13:08:08 2005 EDT

  Modified files:              
    /loncom/homework	bridgetask.pm 
  Log:
  - first pass at a review queue
     - review grading goes to the review queue
     - can select a record from the review queue
     - can resume grading a user from the review queue
  
  
--albertel1117213688
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Index: loncom/homework/bridgetask.pm
diff -u loncom/homework/bridgetask.pm:1.31 loncom/homework/bridgetask.pm:1.32
--- loncom/homework/bridgetask.pm:1.31	Tue May 24 18:06:39 2005
+++ loncom/homework/bridgetask.pm	Fri May 27 13:08:03 2005
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: bridgetask.pm,v 1.31 2005/05/24 22:06:39 albertel Exp $
+# $Id: bridgetask.pm,v 1.32 2005/05/27 17:08:03 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -144,6 +144,12 @@
     my $result=' <input type="submit" name="gradeasubmission" value="'.
 	&mt("Get a submission to grade").'" />';
     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
+    if ( 1) {
+	#need a permissions for limitng this to 'powerful users'
+	#check if review queue has items
+	$result.=' <input type="submit" name="reviewasubmission" value="'.
+	    &mt("Select an entry from the review queue").'" />';
+    }
     return $result;
 }
 
@@ -266,42 +272,56 @@
 	}
     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
 	      $target eq 'webgrade') {
+	my $webgrade='yes';
 	if ($target eq 'webgrade') {
-	    $result.=$head_tag_start.$body_tag_start.$form_tag_start;
-	    $result.='<input type="hidden" name="webgrade" value="yes" />';
+	    #FIXME FORM conflcit with the 'show queue',1 
+	    $result.=$head_tag_start.$body_tag_start;
 	    $result.='<br />Review'.&show_queue('reviewqueue');
 	    $result.='<br />Before'.&show_queue('gradingqueue');
 	}
-	my $todo;
-	# don't get something new from the queue if they hit the stop button
-	if (!($env{'form.stop'} && $target eq 'webgrade')) {
-	    $todo=&get_from_queue('gradingqueue');
-	}
-	if ($todo) {
-	    &setup_env_for_other_user($todo,$safeeval);
-	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
-	    $result.="\n".'<table><tr><td>Found '.
-		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
-	    $result.='<input type="hidden" name="gradingkey" value="'.
-		&Apache::lonnet::escape($todo).'" />';
-	    $Apache::bridgetask::queue_key=$todo;
-	    &Apache::structuretags::initialize_storage();
-	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
-	    if ($target eq 'webgrade') {
-		$result.='<br />After'.&show_queue('gradingqueue');
-		$result.="\n".'<table width="100%" style="width:100%" border="1">';
-	    }
+	if (defined($env{'form.reviewasubmission'})) {
+	    $result.=&show_queue('reviewqueue',1);
+	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
 	} else {
-	    if ($target eq 'webgrade') {
-		$result.="\n".'<table><tr><td><b>';
-		if ($env{'form.stop'}) {
-		    $result.=&mt("Stopped grading.");
-		} else {
-		    $result.=&mt("No user to be graded.");
+	    my ($todo,$status_code)=&get_key_todo($target);
+	    if ($todo) {
+		&setup_env_for_other_user($todo,$safeeval);
+		my ($symb,$uname,$udom)=&decode_queue_key($todo);
+		$result.="\n".'<table><tr><td>Found '.
+		    &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
+		$result.='<input type="hidden" name="gradingkey" value="'.
+		    &Apache::lonnet::escape($todo).'" />';
+		$Apache::bridgetask::queue_key=$todo;
+		&Apache::structuretags::initialize_storage();
+		&Apache::lonhomework::showhash(%Apache::lonhomework::history);
+		if ($target eq 'webgrade') {
+		    $result.='<br />After'.&show_queue('gradingqueue');
+		    $result.="\n".'<table width="100%" style="width:100%" border="1">';
 		}
-		$result.='</b></td></tr></table>';
+	    } else {
+		if ($target eq 'webgrade') {
+		    $result.="\n".'<table><tr><td><b>';
+		    if      ($status_code eq 'stop') {
+			$result.=&mt("Stopped grading.");
+		    } elsif ($status_code eq 'lock_failed') {
+			$result.=&mt("Failed to lock the request record.");
+		    } elsif ($status_code eq 'unlock') {
+			$result.=&mt("Unlocked the requested user.");
+		    } else {
+			$result.=&mt("No user to be graded.");
+		    }
+		    $result.='</b></td></tr></table>';
+		}
+		$webgrade='no';
+		my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
 	    }
-	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
+	}
+	if ($target eq 'webgrade' && defined($env{'form.queue'})) {
+	    $result.=$form_tag_start;
+	    $result.='<input type="hidden" name="webgrade" value="'.
+		$webgrade.'" />';
+	    $result.='<input type="hidden" name="queue" value="'.
+		$env{'form.queue'}.'" />';
 	}
     } else {
 	# page_start returned a starting result, delete it if we don't need it
@@ -310,6 +330,41 @@
     return $result;
 }
 
+sub get_key_todo {
+    my ($target)=@_;
+    my $todo;
+    my $queue=$env{'form.queue'};
+    if (!defined($queue)) {
+	$env{'form.queue'}=$queue='gradingqueue';
+    }
+    my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
+    if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
+	&& !defined($env{'form.action'})) {
+	#FIXME probably need to do some cheking here for more validity
+	&Apache::lonnet::logthis("Found a key was given to me");
+	return ($gradingkey);
+    }
+    if ($env{'form.action'} eq 'resume') {
+	&Apache::lonnet::logthis("Resuming a key");
+	return ($gradingkey);
+    } elsif ($env{'form.action'} eq 'unlock') {
+	&Apache::lonnet::logthis("Unlocking a key ".
+				 &check_queue_unlock($queue,$gradingkey,1));
+	return (undef,'unlock');
+    } elsif ($env{'form.action'} eq 'select') {
+	if (&lock_key($queue,$gradingkey)) {
+	    return ($gradingkey);
+	}
+	return (undef,'lock_failed');
+    }
+    # don't get something new from the queue if they hit the stop button
+    if (!($env{'form.stop'} && $target eq 'webgrade')) {
+	return (&get_from_queue($queue));
+    } else {
+	return (undef,'stop');
+    }
+}
+
 sub end_Task {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result='';
@@ -355,7 +410,7 @@
 		&add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
 	    }
 	}
-	if ($target eq 'grade' && $env{'form.webgrade'}) {
+	if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
 	    my $optional_required=
 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
 					   $safeeval);
@@ -387,22 +442,24 @@
 		$env{'user.name'}.'@'.$env{'user.domain'};
 	    if ($review) {
 		$Apache::lonhomework::results{"resource.$version.status"}='review';
+		# FIXME won't work well when already in review queues
 		&move_between_queues('gradingqueue','reviewqueue');
 	    } elsif ($ungraded) {
 		$Apache::lonhomework::results{"resource.$version.status"}='ungraded';
-		&check_queue_unlock('gradingqueue');
+		# FIXME if in review queue need to move back to grading queue
+		&check_queue_unlock($env{'form.queue'});
 	    } elsif ($mandatory_failed) {
 		$Apache::lonhomework::results{"resource.$version.status"}='fail';
 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
-		&remove_from_queue('gradingqueue');
+		&remove_from_queue($env{'form.queue'});
 	    } else {
 		$Apache::lonhomework::results{"resource.$version.status"}='pass';
 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
-		&remove_from_queue('grading_queue');
+		&remove_from_queue($env{'form.queue'});
 	    }
 	    $Apache::lonhomework::results{"resource.status"}=
 		$Apache::lonhomework::results{"resource.$version.status"};
@@ -449,16 +506,22 @@
 }
 
 sub check_queue_unlock {
-    my ($queue)=@_;
+    my ($queue,$key,$allow_not_me)=@_;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
+    if (!defined($key)) {
+	$key="$symb\0queue\0$uname\@$udom";
+    }
     my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};
-    my $key="$symb\0queue\0$uname\@$udom";
     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
     if  ($who eq $me) {
-	&Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
+	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
+    } elsif ($allow_not_me) {
+	&Apache::lonnet::logthis("unlocking $who by $me");
+	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
     }
+    return 'not_owner';
 }
 
 sub remove_from_queue {
@@ -506,7 +569,7 @@
 }
 
 sub show_queue {
-    my ($queue)=@_;
+    my ($queue,$with_selects)=@_;
     my $result;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
     my $cnum=$env{'course.'.$cid.'.num'};
@@ -517,24 +580,49 @@
     if ($tmp=~/^error: 2 /) {
 	return "\n<h3>Current Queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
     }
-    $result.="\n<h3>Current Queue</h3><table border='1'><tr><th>resource</th>".
-	"<th>user</th><th>type</th><th>data</th></tr>";
+    $result.="\n<h3>Current Queue</h3><table border='1'><tr>";
+    if ($with_selects) { $result.="<th></th>"; }
+    $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
     foreach my $key (sort(keys(%queue))) {
-	if ($key=~/locked$/) {
+	if ($key=~/locked$/ && !$with_selects) {
 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
 	    my $title=&Apache::lonnet::gettitle($symb);
 	    $result.="<tr><td>$title</td><td>$uname</td>";
 	    $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
-	} elsif ($key=~/timestamp$/) {
+	} elsif ($key=~/timestamp$/ && !$with_selects) {
 	    my ($symb,undef) = split("\0",$key);
 	    my $title=&Apache::lonnet::gettitle($symb);
 	    $result.="<tr><td>$title</td><td></td>";
 	    $result.='<td>last queue modification time</td><td>'.
 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
-	} else {
+	} elsif ($key!~/(timestamp|locked)$/) {
 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
 	    my $title=&Apache::lonnet::gettitle($symb);
-	    $result.="<tr><td>$title</td><td>$uname</td>";
+	    $result.="<tr>";
+	    if ($with_selects) {
+		my $ekey=&Apache::lonnet::escape($key);
+		my ($action,$description)=('select',&mt('Select'));
+		if (exists($queue{"$key\0locked"})) {
+		    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
+		    if ($me eq $queue{"$key\0locked"}) {
+			($action,$description)=('resume',&mt('Resume'));
+		    } else {
+			($action,$description)=('unlock',&mt('Unlock'));
+		    }
+		}
+		$result.=(<<FORM);
+<td>
+<form method="POST">
+ <input type="hidden" name="gradingkey" value="$ekey" />
+ <input type="hidden" name="queue" value="$queue" />
+ <input type="hidden" name="gradingaction" value="$action" />
+ <input type="hidden" name="webgrade" value="no" />
+ <input type="submit" name="submit" value="$description" />
+</form>
+</td>
+FORM
+	    }
+	    $result.="<td>$title</td><td>$uname</td>";
 	    my $slot=$queue{$key}->[0];
 	    my %slot_data=&Apache::lonnet::get_slot($slot);
 	    $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
@@ -610,15 +698,28 @@
     return undef;
 }
 
+sub lock_key {
+    my ($queue,$todo)=@_;
+    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
+    my (undef,$cid)=&Apache::lonxml::whichuser();
+    my $cnum=$env{'course.'.$cid.'.num'};
+    my $cdom=$env{'course.'.$cid.'.domain'};
+    my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
+					$cdom,$cnum);
+    &Apache::lonnet::logthis("success $success $todo");
+    if ($success eq 'ok') {
+	return 1;
+    }
+    return 0;
+}
+
 sub get_from_queue {
     my ($queue)=@_;
     my $result;
     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
     my $cnum=$env{'course.'.$cid.'.num'};
     my $cdom=$env{'course.'.$cid.'.domain'};
-    my $todo;
-    # FIXME need to find if I am 'mid grading'
-    $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
+    my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
     &Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));
     if ($todo) { return $todo; }
     while (1) {
@@ -646,13 +747,8 @@
 	if (!$todo) { last; }
 	&Apache::lonnet::logthis("got $todo");
 	# otherwise found someone so lets try to lock them
-	my $success=&Apache::lonnet::newput($queue,
-					    {"$todo\0locked"=>
-						 $env{'user.name'}.'@'.$env{'user.domain'}},
-					   $cdom,$cnum);
-	# someone else already picked them
-	&Apache::lonnet::logthis("success $todo");
-	if ($success ne 'ok') { next; }
+	# unless someone else already picked them
+	if (!&lock_key($queue,$todo)) { next; }
 	my (undef,$endtime)=
 	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
 				 $cdom,$cnum);
@@ -721,9 +817,6 @@
 }
 
 sub get_instance {
-    #FIXME just grabbing the first one for now, need
-    #to randomly pick one until all have been seen
-    #then start repicking
     &Apache::response::pushrandomnumber();
     my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
     my $num=@order;

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