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Diff for /loncom/homework/bridgetask.pm between versions 1.2 and 1.50

version 1.2, 2005/03/17 21:21:11 version 1.50, 2005/09/20 07:10:21
Line 36  use Apache::File(); Line 36  use Apache::File();
 use Apache::lonmenu;  use Apache::lonmenu;
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::lonxml;  use Apache::lonxml;
   use Apache::slotrequest();
 use Time::HiRes qw( gettimeofday tv_interval );  use Time::HiRes qw( gettimeofday tv_interval );
   
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));      &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
 }  }
   
   sub initialize_bridgetask {
       # id of current Dimension, 0 means that no dimension is current 
       # (inside <Task> only)
       $Apache::bridgetask::dimension='';
       # list of all Dimension ids seen
       @Apache::bridgetask::dimensionlist=();
       # mandatory attribute of all Dimensions seen
       %Apache::bridgetask::dimensionmandatory=();
       # list of all current Instance ids
       @Apache::bridgetask::instance=();
       # list of all Instance ids seen in this problem
       @Apache::bridgetask::instancelist=();
       # key of queud user data that we are currently grading
       $Apache::bridgetask::queue_key='';
   }
   
   sub proctor_check_auth {
       my ($slot_name,$slot)=@_;
       my $user=$env{'form.proctorname'};
       my $domain=$env{'form.proctordomain'};
       
       my @allowed=split(",",$slot->{'proctor'});
       foreach my $possible (@allowed) {
    my ($puser,$pdom)=(split('@',$possible));
    if ($puser eq $user && $pdom eq $domain) {
       my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
       if ($authhost ne 'no_host') {
    my $version=
       $Apache::lonhomework::results{'resource.version'}=
       ++$Apache::lonhomework::history{'resource.version'};
    $Apache::lonhomework::results{"resource.$version.checkedin"}=
       $user.'@'.$domain;
    $Apache::lonhomework::results{"resource.$version.checkedin.slot"}=
       $slot_name;
    foreach my $key (keys(%Apache::lonhomework::history)) {
       if ($key=~/^resource\.0\./) {
    $Apache::lonhomework::results{$key}='';
       }
    }
    return 1;
       }
    }
       }
       return 0;
   }
   
   sub get_version {
       my ($version,$previous);
       if ($env{'form.previousversion'} && 
    $env{'form.previousversion'} ne 'current' &&
    defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
    $version=$env{'form.previousversion'};
    $previous=1;
       } else {
    $version=$Apache::lonhomework::history{'resource.version'};
    $previous=0;
       }
       if (wantarray) {
    return ($version,$previous);
       }
       return $version;
   }
   
   sub add_previous_version_button {
       my ($status)=@_;
       my $result;
       if ($Apache::lonhomework::history{'resource.version'} eq '') {
    return '';
       }
       if ($Apache::lonhomework::history{'resource.version'} < 2 &&
    $status ne 'NEEDS_CHECKIN') {
    return '';
       }
       my $version=&get_version();
       if ($env{'form.previousversion'} ne '' &&
    $env{'form.previousversion'} eq $version) {
    $result.="<h3>".&mt("Showing previous version [_1]",$version).
       "</h3>\n";
       }
       my @to_show;
       foreach my $test_version (1..$Apache::lonhomework::history{'resource.version'}) {
    if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.status'})) {
       push(@to_show,$test_version);
    }
       }
       my $list='<option>'.
    join("</option>\n<option>",@to_show).
        "</option>\n";
       $list.='<option value="current">'.&mt('Current').'</option>';
       $result.='<form name="getprevious" method="POST" action="';
       my $uri=$env{'request.uri'};
       if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
       $result.=$uri.'">'.
    &mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
   <option>'.&mt('Pick one').'</option>
   '.$list.'
   </select>')."</form>";
       return $result;
   }
   
   sub add_grading_button {
       my $result=' <input type="submit" name="gradeasubmission" value="'.
    &mt("Get a submission to grade").'" />';
       $result.='<input type="hidden" name="grade_target" value="webgrade" />';
       if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
    my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
    $result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
   
    $result.=' <input type="submit" name="reviewagrading" value="'.
       &mt("Select an entry from the grading queue").'" /> </p>'."\n";
   
    ($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
    $result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
    $result.=' <input type="submit" name="reviewasubmission" value="'.
       &mt("Select an entry from the review queue").'" /> </p>'."\n";
    $result.=' <input type="submit" name="regradeasubmission" value="'.
       &mt("Select a user to regrade.").'" /> </p>'."\n";
       }
       return $result;
   }
   
   sub add_request_another_attempt_button {
       my ($text)=@_;
       if (!$text) { $text="Request another attempt"; }
       my $result;
       my $symb=&Apache::lonnet::symbread();
       my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
       my $action='get_reservation';
       if ($slot_name) {
    $text="Change reservation.";
    $action='change_reservation';
    my $description=&Apache::slotrequest::get_description($slot_name,
         $slot);
    $result.=(<<STUFF);
   <p> Will be next available: $description </p>
   STUFF
       }
       
       if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
       $symb=&Apache::lonnet::escape($symb);
       $result.='<form method="POST" action="/adm/slotrequest">'.
    '<input type="hidden" name="symb" value="'.$symb.'" />'.
    '<input type="hidden" name="command" value="'.$action.'" />'.
    '<input type="submit" name="requestattempt" value="'.
    &mt($text).'" />'.
    '</form>';
       return $result;
   }
   
   sub preserve_grade_info {
       my $result;
       # if we are viewing someone else preserve that info
       if (defined $env{'form.grade_symb'}) {
    foreach my $field ('symb','courseid','domain','username') {
       $result .= '<input type="hidden" name="grade_'.$field.
    '" value="'.$env{"form.grade_$field"}.'" />'."\n";
    }
       }
       return $result;
   }
   
 sub start_Task {  sub start_Task {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   
     #&initialize_storage();      my ($status,$accessmsg,$slot);
       if ($target ne 'webgrade') {
     my $status;   &Apache::structuretags::initialize_storage();
     my $accessmsg;   &Apache::lonhomework::showhash(%Apache::lonhomework::history);
       } 
   
       $Apache::lonhomework::parsing_a_task=1;
     #should get back a <html> or the neccesary stuff to start XML/MathML      #should get back a <html> or the neccesary stuff to start XML/MathML
     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=      my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
  &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);   &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
       
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||      if ($target eq 'web') {
    if ($Apache::lonhomework::modifygrades) {
       $body_tag_start.='<form name="gradesubmission" method="POST" action="';
       my $uri=$env{'request.uri'};
       if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
       $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
       my $symb=&Apache::lonnet::symbread();
       if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
    $body_tag_start.='<form method="POST" action="/adm/slotrequest">'.
       '<input type="hidden" name="symb" value="'.$symb.'" />'.
       '<input type="hidden" name="command" value="showslots" />'.
       '<input type="submit" name="requestattempt" value="'.
       &mt('Show Slot list').'" />'.
       '</form>';
       }
    }
       }
       if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
  $target eq 'tex') {   $target eq 'tex') {
  ($status,$accessmsg) = &Apache::lonhomework::check_task_access('0');   my ($version,$previous)=&get_version();
  push (@Apache::inputtags::status,$status);   ($status,$accessmsg,my $slot_name,$slot) = 
       &Apache::lonhomework::check_task_access('0');
    push(@Apache::inputtags::status,$status);
    $Apache::inputtags::slot_name=$slot_name;
  my $expression='$external::datestatus="'.$status.'";';   my $expression='$external::datestatus="'.$status.'";';
  $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';   $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
  &Apache::run::run($expression,$safeeval);   &Apache::run::run($expression,$safeeval);
  &Apache::lonxml::debug("Got $status");   &Apache::lonxml::debug("Got $status");
  if (( $status eq 'CLOSED' ) ||   $body_tag_start.=&add_previous_version_button($status);
     ( $status eq 'BANNED') ||   if (!$previous && (
     ( $status eq 'UNAVAILABLE') ||     ( $status eq 'CLOSED' ) ||
     ( $status eq 'INVALID_ACCESS')) {     ( $status eq 'BANNED') ||
      ( $status eq 'UNAVAILABLE') ||
      ( $status eq 'NOT_IN_A_SLOT') ||
      ( $status eq 'NEEDS_CHECKIN') ||
      ( $status eq 'WAITING_FOR_GRADE') ||
      ( $status eq 'INVALID_ACCESS') )) {
     my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);      my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
     if ( $target eq "web" ) {      if ( $target eq "web" ) {
  $result.= $head_tag_start.'</head>';   $result.= $head_tag_start.'</head>'.$body_tag_start;
  my $msg=$body_tag_start;   my $msg;
  if ($status eq 'UNAVAILABLE') {   if ($status eq 'UNAVAILABLE') {
     $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';      $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
    } elsif ($status eq 'NOT_IN_A_SLOT') {
       $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
       $msg.=&add_request_another_attempt_button("Sign up for time to work.");
    } elsif ($status eq 'NEEDS_CHECKIN') {
       $msg.='<h1>'.&mt('You need the Proctor to validate you.').
    '</h1>'.&proctor_validation_screen($slot);
    } elsif ($status eq 'WAITING_FOR_GRADE') {
       $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
  } elsif ($status ne 'NOT_YET_VIEWED') {   } elsif ($status ne 'NOT_YET_VIEWED') {
     $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';      $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
  }   }
Line 85  sub start_Task { Line 283  sub start_Task {
  } else {   } else {
     $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";      $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
  }   }
       } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
    if ($status eq 'NEEDS_CHECKIN') {
       &proctor_check_auth($slot_name,$slot);
    }
     }      }
  } elsif ($target eq 'web') {   } elsif ($target eq 'web') {
     my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);      my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
     $result.="$head_tag_start<title>$name</title></head>      $result.="$head_tag_start<title>$name</title></head>
               $body_tag_start \n $form_tag_start".                $body_tag_start \n";
       '<input type="hidden" name="submitted" value="yes" />';      
     # if we are viewing someone else preserve that info      my ($version,$previous)=&get_version();
     if (defined $ENV{'form.grade_symb'}) {      if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
  foreach my $field ('symb','courseid','domain','username') {   $result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
     $result .= '<input type="hidden" name="grade_'.$field.   if (!$previous) {
  '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";      $result.=&add_request_another_attempt_button();
  }   }
     }      }
       if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
    $result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
       }
       $result.=$form_tag_start.
    '<input type="hidden" name="submitted" value="yes" />';
       $result.=&preserve_grade_info();
   
    }
       } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
         $target eq 'webgrade') {
    my $webgrade='yes';
    if ($target eq 'webgrade') {
       $result.=$head_tag_start.$body_tag_start;
       #$result.='<br />Review'.&show_queue('reviewqueue');
       #$result.='<br />Grade'.&show_queue('gradingqueue');
    }
    # FIXME Blast! still need to reorg this, need to reshow the
           #       queue being reviewed once done with the grade pass...
           #       Hrrm, vaildation pass should perhaps say 'not_locked'
           #       perhaps do a search if there is a key that is mine and if
           #       there isn't reshow the queue....
    my ($todo,$status_code)=&get_key_todo($target);
   
    &Apache::lonnet::logthis("got todo -$todo- stat -$status_code-");
    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>';
       $form_tag_start.=
    '<input type="hidden" name="gradingkey" value="'.
    &Apache::lonnet::escape($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($env{'form.queue'});
    $result.="\n".'<table width="100%" style="width:100%" border="1">';
    if ($status_code eq 'selected') {
       $form_tag_start.=
    '<input type="hidden" name="queuemode" value="selected" />';
    }
       }
    } else {
       if ($target eq 'webgrade') {
    $result.="\n";
    if      ($status_code eq 'stop') {
       $result.='<b>'.&mt("Stopped grading.").'</b>';
    } elsif ($status_code eq 'lock_failed') {
       $result.='<b>'.&mt("Failed to lock the request record.").'</b>';
    } elsif ($status_code eq 'unlock') {
       $result.='<b>'.&mt("Unlocked the requested record.").'</b>';
       $result.=&show_queue($env{'form.queue'},1);
    } elsif ($status_code eq 'show_list') {
       $result.=&show_queue($env{'form.queue'},1);
    } elsif ($status_code eq 'select_user') {
       $result.=&select_user();
    } else {
       $result.='<b>'.&mt("No user to be graded.").'</b>';
    }
       }
       $webgrade='no';
       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 {      } else {
  # page_start returned a starting result, delete it if we don't need it   # page_start returned a starting result, delete it if we don't need it
Line 106  sub start_Task { Line 378  sub start_Task {
     return $result;      return $result;
 }  }
   
   sub get_key_todo {
       my ($target)=@_;
       my $todo;
   
       if (defined($env{'form.reviewasubmission'})) {
    &Apache::lonnet::logthis("review a submission....");
    $env{'form.queue'}='reviewqueue';
    return (undef,'show_list');
       }
   
       if (defined($env{'form.reviewagrading'})) {
    &Apache::lonxml::debug("review a grading....");
    $env{'form.queue'}='gradingqueue';
    return (undef,'show_list');
       }
   
       if (defined($env{'form.regradeasubmission'})) {
    &Apache::lonxml::debug("regrade a grading....");
    $env{'form.queue'}='none';
    return (undef,'select_user');
       }
   
       my $queue=$env{'form.queue'};
   
       if (!defined($queue)) {
    $env{'form.queue'}=$queue='gradingqueue';
       }
   
       my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
   
       if ($env{'form.queue'} eq 'none') {
    if (defined($env{'form.gradingkey'})) {
       if ($target eq 'webgrade') {
    if ($env{'form.stop'}) {
       return (undef,'stop');
    } elsif ($env{'form.next'}) {
       return (undef,'show_list');
    }
       }
       return ($gradingkey,'selected');
    } else {
       return (undef,'show_list');
    }
       }
       if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
    && !defined($env{'form.gradingaction'}) 
    && $env{'form.queuemode'} eq 'selected') {
   
    my $who=&queue_key_locked($queue,$gradingkey);
    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
    if ($who eq $me) {
       &Apache::lonxml::debug("Found a key was given to me");
       return ($gradingkey,'selected');
    } else {
       return (undef,'show_list');
    }
   
       }
   
       if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
    if ($env{'form.gradingaction'} eq 'resume') {
       delete($env{'form.gradingaction'});
       &Apache::lonxml::debug("Resuming a key");
       return ($gradingkey);
    } elsif ($env{'form.gradingaction'} eq 'unlock') {
       &Apache::lonxml::debug("Unlocking a key ".
        &check_queue_unlock($queue,$gradingkey,1));
       return (undef,'unlock');
    } elsif ($env{'form.gradingaction'} eq 'select') {
       &Apache::lonxml::debug("Locking a key");
       if (&lock_key($queue,$gradingkey)) {
    &Apache::lonxml::debug("Success $queue");
    return ($gradingkey);
       }
       &Apache::lonxml::debug("Failed $queue");
       return (undef,'lock_failed');
    }
       }
   
       if ($env{'form.queuemode'} ne 'selected') {
    # don't get something new from the queue if they hit the stop button
       if (!($env{'form.stop'} && $target eq 'webgrade') 
       && !$env{'form.gradingaction'}) {
       &Apache::lonxml::debug("Getting anew $queue");
       return (&get_from_queue($queue));
    } else {
       return (undef,'stop');
    }
       }
       return (undef,undef)
   }
   
 sub end_Task {  sub end_Task {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result='';      my $result='';
     my $status=$Apache::inputtags::status['-1'];      my $status=$Apache::inputtags::status['-1'];
       my ($version,$previous)=&get_version();
     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||      if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
  $target eq 'tex') {   $target eq 'tex') {
  if (   if (
     (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||      (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
     ($target eq 'answer') || ($target eq 'tex')      ($target eq 'answer') || ($target eq 'tex')
    ) {     ) {
     if ($target eq 'web') {      if ($target eq 'web') {
    if ($status eq 'CAN_ANSWER' && !$previous) {
       $result.="\n".'<table border="1">'.
    &Apache::inputtags::file_selector("$version.0",
     "bridgetask","*",
     'portfolioonly',
     '
   <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
   <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
     "</table>";
       $result.=&Apache::inputtags::gradestatus('0');
    }
       } 
       if ($target eq 'web' || $target eq 'webgrade') {
  $result.=&Apache::lonxml::xmlend().'</html>';   $result.=&Apache::lonxml::xmlend().'</html>';
     }      }
  }   }
  if ($target eq 'grade') {   if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
     #&Apache::lonhomework::showhash(%Apache::lonhomework::results);      my $award='SUBMITTED';
     #&finalize_storage();      &Apache::essayresponse::file_submission("$version.0",'bridgetask',
       'portfiles',\$award);
       if ($award eq 'SUBMITTED' &&
    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
    $Apache::lonhomework::results{"resource.0.tries"}=
       $Apache::lonhomework::results{"resource.$version.0.tries"}=
       1+$Apache::lonhomework::history{"resource.$version.0.tries"};
   
    $Apache::lonhomework::results{"resource.0.award"}=
       $Apache::lonhomework::results{"resource.$version.0.award"}=
       $award;
       }
       &Apache::lonhomework::showhash(%Apache::lonhomework::results);
       &Apache::structuretags::finalize_storage();
       if ($award eq 'SUBMITTED') {
    &add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
       }
    }
    if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
       my $optional_required=
    &Apache::lonxml::get_param('OptionalRequired',$parstack,
      $safeeval);
       my $optional_passed=0;
       my $mandatory_failed=0;
       my $ungraded=0;
       my $review=0;   
       &Apache::lonhomework::showhash(%Apache::lonhomework::results);
       foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
    my $status=
       $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
    my $mandatory=
       ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
    if ($status eq 'pass') {
       if (!$mandatory) { $optional_passed++; }
    } elsif ($status eq 'fail') {
       if ($mandatory) { $mandatory_failed++; }
    } elsif ($status eq 'ungraded') {
       $ungraded++;
    } elsif ($status eq 'review') {
       $review++;
    } else {
       $ungraded++;
    }
       }
       if ($optional_passed < $optional_required) {
    $mandatory_failed++;
       }
       &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
       $Apache::lonhomework::results{'resource.grader'}=
    $env{'user.name'}.'@'.$env{'user.domain'};
       if ($review) {
    $Apache::lonhomework::results{"resource.$version.status"}='review';
    if ($env{'form.queue'} eq 'reviewqueue') {
       &check_queue_unlock($env{'form.queue'});
       &Apache::lonxml::debug(" still needs review not changing status.");
    } else {
       &move_between_queues($env{'form.queue'},'reviewqueue');
    }
       } elsif ($ungraded) {
    $Apache::lonhomework::results{"resource.$version.status"}='ungraded';
    if ($env{'form.queue'} eq 'reviewqueue' ||
       $env{'form.queue'} eq 'none' ) {
       &Apache::lonxml::debug("moving back.");
       &move_between_queues($env{'form.queue'},'gradingqueue');
    } else {
       &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($env{'form.queue'}); 
   
    my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
       $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
    &Apache::grades::version_portfiles(
    \%Apache::lonhomework::results,
    ["$version.0.bridgetask"],$courseid,
    $symb,$udom,$uname,
    ["$version.0.bridgetask"]);
       } 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($env{'form.queue'});
   
    my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
       $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
    &Apache::grades::version_portfiles(
    \%Apache::lonhomework::results,
    ["$version.0.bridgetask"],$courseid,
    $symb,$udom,$uname,
    ["$version.0.bridgetask"]);
       }
       $Apache::lonhomework::results{"resource.status"}=
    $Apache::lonhomework::results{"resource.$version.status"};
       if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
    $Apache::lonhomework::results{"resource.0.award"}=
       $Apache::lonhomework::results{"resource.$version.0.award"};
    $Apache::lonhomework::results{"resource.0.awarded"}=
       $Apache::lonhomework::results{"resource.$version.0.awarded"};
    $Apache::lonhomework::results{"resource.0.solved"}=
       $Apache::lonhomework::results{"resource.$version.0.solved"};
       }
       &Apache::structuretags::finalize_storage();
  }   }
       } elsif ($target eq 'webgrade') {
    $result.="</table>\n<hr />";
    #$result.='<input type="submit" name="next" value="'.
    #    &mt('Save &amp; Next').'" /> ';
    #$result.='<input type="submit" name="end" value="'.
    #    &mt('Save &amp; Stop Grading').'" /> ';
    #$result.='<input type="submit" name="throwaway" value="'.
    #    &mt('Throw Away &amp; Stop Grading').'" /> ';
    #$result.='<input type="submit" name="save" value="'.
    #    &mt('Save Partial Grade and Continue Grading').'" /> ';
    $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
     } elsif ($target eq 'meta') {      } elsif ($target eq 'meta') {
  $result.='<parameter part="0" package="Task"></parameter>'."\n";   $result.='<parameter part="0" package="Task"></parameter>'."\n";
  #$result.=&Apache::response::meta_part_order();   #$result.=&Apache::response::meta_part_order();
  #$result.=&Apache::response::meta_response_order();   #$result.=&Apache::response::meta_response_order();
     }      }
       undef($Apache::lonhomework::parsing_a_task);
       return $result;
   }
   
   sub move_between_queues {
       my ($src_queue,$dest_queue)=@_;
       my $cur_data;
       if ($src_queue ne 'none') {
    $cur_data=&get_queue_data($src_queue);
    if (!$cur_data) { return 'not_exist'; }
       } else {
    $cur_data = ['none'];
       }
       my $result=&add_to_queue($dest_queue,$cur_data->[0]);
       if ($result ne 'ok') {
    return $result;
       }
       &check_queue_unlock($src_queue);
       return &remove_from_queue($src_queue);
   }
   
   sub check_queue_unlock {
       my ($queue,$key,$allow_not_me)=@_;
       if ($queue eq 'none') { return 'ok'; }
       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 $me=$env{'user.name'}.'@'.$env{'user.domain'};
       my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
       if  ($who eq $me) {
    return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
       } elsif ($allow_not_me) {
    &Apache::lonxml::debug("unlocking $who by $me");
    return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
       }
       return 'not_owner';
   }
   
   sub remove_from_queue {
       my ($queue)=@_;
       if ($queue eq 'none') { return 'ok'; }
       my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my $key="$symb\0queue\0$uname\@$udom";
       my @keys=($key,"$key\0locked");
       return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
   }
   
   sub setup_env_for_other_user {
       my ($queue_key,$safeeval)=@_;
       my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
       &Apache::lonxml::debug("setup_env for $queue_key");
       $env{'form.grade_symb'}=$symb;
       $env{'form.grade_domain'}=$udom;
       $env{'form.grade_username'}=$uname;
       $env{'form.grade_courseid'}=$env{'request.course.id'};
       &Apache::lonxml::initialize_rndseed($safeeval);
   }
   
   sub get_queue_data {
       my ($queue)=@_;
       my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my $todo="$symb\0queue\0$uname\@$udom";
       my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
       if ($key eq $todo && ref($value)) {
    return $value;
       }
       return undef;
   }
   
   sub check_queue_for_key {
       my ($cid,$queue,$todo)=@_;
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my %results=
    &Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
       
       if (exists($results{$todo}) && ref($results{$todo})) {
    if (defined($results{"$todo\0locked"})) {
       return 'locked';
    }
    return 'enqueued';
       }
       return undef;
   }
   
   sub add_to_queue {
       my ($queue,$slot_name)=@_;
       if ($queue eq 'none') { return 'ok'; }
       my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my %data;
       $data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];
       return &Apache::lonnet::put($queue,\%data,$cdom,$cnum);
   }
   
   sub show_queue {
       my ($queue,$with_selects)=@_;
       my $result;
       my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
       my $cnum=$env{'course.'.$cid.'.num'};
       my $cdom=$env{'course.'.$cid.'.domain'};
       my $regexp="^$symb\0";
       my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
       my ($tmp)=%queue;
       if ($tmp=~/^error: 2 /) {
    return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
       }
       $result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";
       if ($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$/ && !$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$/ && !$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{$key})."</td></tr>";
    } elsif ($key!~/(timestamp|locked)$/) {
       my ($symb,$uname,$udom) = &decode_queue_key($key);
       my $title=&Apache::lonnet::gettitle($symb);
       $result.="<tr>";
       my $slot=$queue{$key}->[0];
       my %slot_data=&Apache::lonnet::get_slot($slot);
       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'));
       }
    }
    if (time > $slot_data{'endtime'}) {
       $result.=(<<FORM);
   <td>
   <form method="POST">
    <input type="hidden" name="gradingkey" value="$ekey" />
    <input type="hidden" name="queue" value="$queue" />
    <input type="hidden" name="gradingaction" value="$action" />
    <input type="hidden" name="webgrade" value="no" />
    <input type="hidden" name="queuemode" value="selected" />
    <input type="submit" name="submit" value="$description" />
   </form>
   </td>
   FORM
   
                   } else {
       $result.='<td>'.&mt("In Progress").'</td>'
    }
       }
       $result.="<td>$title</td><td>$uname</td>";
       $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
    &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
    "</td></tr>";
    }
       }
       $result.="</table><hr />\n";
       return $result;
   }
   
   sub get_queue_counts {
       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 $regexp="^$symb\0";
       my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
       my ($tmp)=%queue;
       if ($tmp=~/^error: 2 /) {
    return (0,0,0);
       }
       my ($entries,$ready_to_grade,$locks)=(0,0,0);
       foreach my $key (sort(keys(%queue))) {
    if ($key=~/locked$/) {
       $locks++;
    } elsif ($key=~/timestamp$/) {
       #ignore
    } elsif ($key!~/(timestamp|locked)$/) {
       my ($symb,$uname,$udom) = &decode_queue_key($key);
       $entries++;
       my $slot=$queue{$key}->[0];
       my %slot_data=&Apache::lonnet::get_slot($slot);
       if (time > $slot_data{'endtime'}) {
    $ready_to_grade++;
       }
    }
       }
       return ($entries,$ready_to_grade,$locks);
   }
   
   sub encode_queue_key {
       my ($symb,$udom,$uname)=@_;
       return "$symb\0queue\0$uname\@$udom";
   }
   
   sub decode_queue_key {
       my ($key)=@_;
       my ($symb,undef,$user) = split("\0",$key);
       my ($uname,$udom) = split('@',$user);
       return ($symb,$uname,$udom);
   }
   
   sub queue_key_locked {
       my ($queue,$key,$cdom,$cnum)=@_;
       if (!defined($cdom) || !defined($cnum)) {
    my (undef,$cid)=&Apache::lonxml::whichuser();
    $cnum=$env{'course.'.$cid.'.num'};
    $cdom=$env{'course.'.$cid.'.domain'};
       }
       my ($key_locked,$value)=
    &Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
       if ($key_locked eq "$key\0locked") {
    return $value;
       }
       return undef;
   }
   
   sub pick_from_queue_data {
       my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
       foreach my $key (keys(%$queuedata)) {
    my ($symb,$uname,$udom)=&decode_queue_key($key);
    if ($check_section) {
       my $section=&Apache::lonnet::getsection($uname,$udom);
       if ($section eq $check_section) {
    &Apache::lonxml::debug("my sec");
    next;
       }
    }
    my $slot=$queuedata->{$key}[0];
    my %slot_data=&Apache::lonnet::get_slot($slot);
    if ($slot_data{'endtime'} > time) { 
       &Apache::lonxml::debug("not time");
       next;
    }
    if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
       &Apache::lonxml::debug("someone already has um.");
       next;
    }
    return $key;
       }
       return undef;
   }
   
   sub find_mid_grade {
       my ($queue,$symb,$cdom,$cnum)=@_;
       my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
       my $me=$env{'user.name'}.'@'.$env{'user.domain'};
       if ($todo) {
    my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
    if ($who eq $me) { return $todo; }
       }
       my $regexp="^$symb\0.*\0locked\$";
       my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
       foreach my $key (keys(%locks)) {
    my $who=$locks{$key};
    if ($who eq $me) {
       $todo=$key;
       $todo=~s/\0locked$//;
       return $todo;
    }
       }
       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::lonxml::debug("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 $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
       &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
       if ($todo) { return $todo; }
       while (1) {
    my $starttime=time;
    &Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
        $cdom,$cnum);
    &Apache::lonxml::debug("$starttime");
    my $regexp="^$symb\0queue\0";
    my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
    #make a pass looking for a user _not_ in my section
    if ($env{'request.course.sec'}) {
       &Apache::lonxml::debug("sce");
       $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
    \%queue,$cdom,$cnum);
       &Apache::lonxml::debug("sce $todo");
    }
    # no one _not_ in our section so look for any user that is
    # ready for grading
    if (!$todo) {
       &Apache::lonxml::debug("no sce");
       $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
    \%queue,$cdom,$cnum);
       &Apache::lonxml::debug("no sce $todo");
    }
    # no user to grade 
    if (!$todo) { last; }
    &Apache::lonxml::debug("got $todo");
    # otherwise found someone so lets try to lock them
    # unless someone else already picked them
    if (!&lock_key($queue,$todo)) { next; }
    my (undef,$endtime)=
       &Apache::lonnet::get($queue,["$symb\0timestamp"],
    $cdom,$cnum);
    &Apache::lonxml::debug("emd  $endtime");
    # someone else already modified the queue, 
    # perhaps our picked user wass already fully graded between
    # when we picked him and when we locked his record? so lets
    # double check.
    if ($endtime != $starttime) {
       my ($key,$value)=
    &Apache::lonnet::get($queue,["$todo"],
        $cdom,$cnum);
       &Apache::lonxml::debug("check  $key .. $value");
       if ($key eq $todo && ref($value)) {
       } else {
    &Apache::lonnet::del($queue,["$todo\0locked"],
        $cdom,$cnum);
    &Apache::lonxml::debug("del");
    next;
       }
    }
    &Apache::lonxml::debug("last $todo");
    last;
       }
       return $todo;
   }
   
   sub select_user {
       my ($symb,$cid)=&Apache::lonxml::whichuser();
       my $result.='<table border="1">';
   
       &Apache::grades::init_perm();
       my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all',);
       &Apache::grades::reset_perm();
   
       foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
    my ($uname,$udom) = split(/:/,$student);
    my %status = &get_student_status($symb,$cid,$udom,$uname);
    my $queue = 'none';
    if ($status{'reviewqueue'} eq 'enqueued') {
       $queue = 'reviewqueue';
    } elsif ($status{'gradingqueue'} eq 'enqueued') {
       $queue = 'gradingqueue';
    }
    my $todo = 
       &Apache::lonnet::escape(&encode_queue_key($symb,$udom,$uname));
    $result.=<<RESULT;
   <tr>
     <td>
       <form method="POST">
         <input type="hidden" name="gradingkey" value="$todo" />
         <input type="hidden" name="queue" value="$queue" />
         <input type="hidden" name="webgrade" value="no" />
        <input type="submit" name="submit" value="Regrade" />
       </form>
     <td>$fullname->{$student}</td>
     <td>
   RESULT
   
           if ($status{'status'} eq 'pass') {
       $result .= '<font color="green">'.&mt('Passed').'</font>';
    } elsif ($status{'status'} eq 'fail') {
       $result .= '<font color="red">'.&mt('Failed').'</font>';
    } elsif ($status{'status'} eq 'review') {
       $result .= '<font color="blue">'.&mt('Under Review').'</font>';
    } elsif ($status{'status'} eq 'ungraded') {
       $result .= &mt('Ungraded');
    } elsif ($status{'status'} ne '') {
       $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
    } else {
       $result.="&nbsp;";
    }
    if ($status{'version'}) {
       $result .= ' '.&mt('Version').' '.$status{'version'};
    }
    $result.= '</td><td>';
    if ($status{'reviewqueue'} eq 'enqueued') {
       $result .= &mt('Awaiting Review');
    } elsif ($status{'reviewqueue'} eq 'locked') {
       $result .= &mt('Under Review');
    } elsif ($status{'gradingqueue'} eq 'enqueued') {
       $result .= &mt('Awaiting Grading');
    } elsif ($status{'gradingqueue'} eq 'locked') {
       $result .= &mt('Being Graded');
    } else {
       $result.="&nbsp;";
    }
    $result.= '</td></tr>';
       }
       $result.='</table>';
     return $result;      return $result;
 }  }
   
   sub get_student_status {
       my ($symb,$cid,$udom,$uname)=@_;
       my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
     $udom,$uname);
       my %status;
       $status{'status'}=$record{'resource.status'};
       $status{'version'}=$record{'resource.version'};
       $status{'grader'}=$record{'resource.grader'};
       $status{'reviewqueue'}=&check_queue_for_key($cid,'reviewqueue',
          &encode_queue_key($symb,$udom,$uname));
       $status{'gradingqueue'}=&check_queue_for_key($cid,'gradingqueue',
          &encode_queue_key($symb,$udom,$uname));
       return %status;
   }
   
 sub start_ClosingParagraph {  sub start_ClosingParagraph {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result;      my $result;
     if ($target eq 'web') {      if ($target eq 'web') {
  $result='<table border="1"><tr><td>Closing</td></tr><tr><td>';      } elsif ($target eq 'webgrade') {
    &Apache::lonxml::startredirection();
     }      }
     return $result;      return $result;
 }  }
Line 145  sub end_ClosingParagraph { Line 1080  sub end_ClosingParagraph {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result;      my $result;
     if ($target eq 'web') {      if ($target eq 'web') {
  $result='</td></tr></table>';      } elsif ($target eq 'webgrade') {
    &Apache::lonxml::endredirection();
     }      }
     return $result;      return $result;
 }  }
   
   sub get_id {
       my ($parstack,$safeeval)=@_;
       my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
       if (!$id) { $id=$Apache::lonxml::curdepth; }
       return $id;
   }
   
 my %dimension;  my %dimension;
 my $dim_id;  
 sub start_Dimension {  sub start_Dimension {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     undef(%dimension);      undef(%dimension);
     $dim_id=$Apache::lonxml::curdepth;      my $dim_id=&get_id($parstack,$safeeval);
       $Apache::bridgetask::dimension=$dim_id;
       push(@Apache::bridgetask::dimensionlist,$dim_id);
       undef(@Apache::bridgetask::instance);
       $Apache::bridgetask::dimensionmandatory{$dim_id}=
    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
     return '';      return '';
 }  }
   
 sub end_Dimension {  sub get_instance {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      &Apache::response::pushrandomnumber();
     my $result;      my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
     if ($target eq 'web') {      my $num=@order;
  #FIXME just grabbing the first one for now, need      my $version=&get_version();
  #to randomly pick one until all have been seen      my $which=($version-1)%$num;
  #then start repicking      return $order[$which];
  my $instance=$dimension{'instances'}->[0];  }
  $result=$dimension{'intro'}.  
     $dimension{$instance.'.text'}.  {
     '<table border="1"><tr><td>Criteria</td></tr><tr><td>';      my $last_link;
  foreach my $id (@{$dimension{$instance.'.criterias'}}) {      sub end_Dimension {
     $result.=$dimension{$instance.'.criteria.'.$id}.   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
  '</td></tr><tr><td>';   my $result;
    my $dim=&get_id($parstack,$safeeval);
    my $instance=&get_instance();
    my $version=&get_version();
    if ($target eq 'web') {
       @Apache::scripttag::parser_env = @_;
       $result.=&Apache::scripttag::xmlparse($dimension{'intro'});
       @Apache::scripttag::parser_env = @_;
       $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});
       if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
    $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
       my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
       my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
       $result.='<table border="1"><tr><td>';
       if ($status eq 'fail') {
    $result.='<font color="red">'.&mt('Did not pass').'</font>';
       } elsif ($status eq 'pass') {
    $result.='<font color="green">'.&mt('Passed').'</font>';
       } else {
    &Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");
       }
       $result.='</td></tr><tr><td>';
       if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
    $result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
       }
       $result.=$dimension{$instance.'.criteria.'.$id}.
    '</td></tr></table>';
    }
       }
    } elsif ($target eq 'webgrade') {
       # in case of any side effects that we need
       @Apache::scripttag::parser_env = @_;
       &Apache::scripttag::xmlparse($dimension{'intro'});
       @Apache::scripttag::parser_env = @_;
       &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
       foreach my $id (@{$dimension{$instance.'.criterias'}}) {
    my $link='criteria_'.$instance.'_'.$id;
    my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
    $result.='<tr><td width="100%" valign="top">'.
       '<a name="'.$link.'" />'.
       '<a name="next_'.$last_link.'" />'.
       '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';
    @Apache::scripttag::parser_env = @_;
    $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
    $result.='</textarea>'.
       #$dimension{$instance.'.criteria.'.$id}.
       '</td>'.
       '<td><nobr>Additional Comment for Student</nobr> <br />'.
       '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
       '</td>'.
       '<td>'.
       '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.
       '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
       '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
       '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
       '</td>'.
       '<td>'.
       '<a href="#'.$last_link.'">Prev</a><br />'.
       '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
       '<input type="submit" name="next" value="'.
       &mt('Done').'" /> '.
       '<input type="submit" name="stop" value="'.
       &mt('Stop').'" /> '.
       '</td></tr>';
    $result.='<tr><td colspan="4">';
    my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
    my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
    foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"})) {
       my $file=$file_url.$partial_file;
       &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
       $result.='<nobr><a href="'.$file.'" target="lonGRDs"><img src="'.
    &Apache::loncommon::icon($file).'" border=0"> '.$file.
    '</a></nobr> ';
    }
    $result.='</td></tr>';
    $last_link=$link;
       }
    } elsif ($target eq 'grade' && $env{'form.webgrade'}) {
       my $optional_passed=0;
       my $mandatory_failed=0;
       my $ungraded=0;
       my $review=0;
       foreach my $id (@{$dimension{$instance.'.criterias'}}) {
    my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
    $Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
    my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
    if ($status eq 'pass') {
       if (!$mandatory) { $optional_passed++; }
    } elsif ($status eq 'fail') {
       if ($mandatory) { $mandatory_failed++; }
    } elsif ($status eq 'review') {
       $review++;
    } elsif ($status eq 'ungraded') {
       $ungraded++;
    } else {
       $ungraded++;
    }
       }
       if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
    $mandatory_failed++;
       }
       &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
       if ($review) {
    $Apache::lonhomework::results{"resource.$version.$dim.status"}=
       'review';
       } elsif ($ungraded) {
    $Apache::lonhomework::results{"resource.$version.$dim.status"}=
       'ungraded';
       } elsif ($mandatory_failed) {
    $Apache::lonhomework::results{"resource.$version.$dim.status"}=
       'fail';
       } else {
    $Apache::lonhomework::results{"resource.$version.$dim.status"}=
       'pass';
       }
  }   }
  $result=~s/<tr><td>$//;   return $result;
  $result.='</table>';  
     }      }
     return $result;  
 }  }
   
 sub start_IntroParagraph {  sub start_IntroParagraph {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $result;      my $result;
     if ($target eq 'web') {      if ($target eq 'web' || $target eq 'webgrade') {
  if ($tagstack->[-2] eq 'Dimension') {   if ($tagstack->[-2] eq 'Dimension') {
     &Apache::lonxml::startredirection();      $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser);
  } else {  
     $result='<table border="1"><tr><td>Intro</td></tr><tr><td>';   } elsif ($target eq 'webgrade') {
       &Apache::lonxml::get_all_text('/introparagraph',$parser);
  }   }
   
     }      }
     return $result;      return $result;
 }  }
   
 sub end_IntroParagraph {  sub end_IntroParagraph {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;  
     my $result;  
     if ($target eq 'web') {  
  if ($tagstack->[-2] eq 'Dimension') {  
     $dimension{'intro'}=&Apache::lonxml::endredirection();  
  } else {  
     $result='</td></tr></table>';  
  }  
     }  
     return $result;  
 }  }
   
 my $instance_id;  
 sub start_Instance {  sub start_Instance {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     push(@{$dimension{'instances'}},$Apache::lonxml::curdepth);      my $id=&get_id($parstack,$safeeval);
     $instance_id=$Apache::lonxml::curdepth;      push(@{$dimension{'instances'}},$id);
       push(@Apache::bridgetask::instance,$id);
       push(@Apache::bridgetask::instancelist,$id);
       $dimension{$id.'.optionalrequired'}=
    &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
     return '';      return '';
 }  }
   
 sub end_Instance {  sub end_Instance {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;  
     return '';  
 }  }
   
 sub start_InstanceText {  sub start_InstanceText {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     if ($target eq 'web') {      my $instance_id=$Apache::bridgetask::instance[-1];
  &Apache::lonxml::startredirection();      my $text=&Apache::lonxml::get_all_text('/instancetext',$parser);
       if ($target eq 'web' || $target eq 'webgrade') {
    $dimension{$instance_id.'.text'}=$text;
     }      }
     return '';      return '';
 }  }
   
 sub end_InstanceText {  sub end_InstanceText {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;  
     if ($target eq 'web') {  
  $dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();  
     }  
     return '';      return '';
 }  }
   
 sub start_Criteria {  sub start_Criteria {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     if ($target eq 'web') {      my $instance_id=$Apache::bridgetask::instance[-1];
  &Apache::lonxml::startredirection();      my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser);
       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);
     }      }
     return '';      return '';
 }  }
   
 sub end_Criteria {  sub end_Criteria {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;  }
     if ($target eq 'web') {  
  my $criteria=&Apache::lonxml::endredirection();  sub proctor_validation_screen {
  my $id=$Apache::lonxml::curdepth;      my ($slot) = @_;
  $dimension{$instance_id.'.criteria.'.$id}=$criteria;      my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
  push(@{$dimension{$instance_id.'.criterias'}},$id);      my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
       my $name=&Apache::loncommon::plainname($user,$domain);
       
       my $msg;
       if ($env{'form.proctorpassword'}) {
    $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
       .'</font></p>';
     }      }
     return '';      if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
       my $result= (<<ENDCHECKOUT);
   <h2>Proctor Validation</h2>
       <p>Your room's proctor needs to validate your access to this resource.</p>
       $msg
   <form name="checkout" method="POST" action="$env{'request.uri'}">
   <input type="hidden" name="validate" value="yes" />
   <input type="hidden" name="submitted" value="yes" />
   <table>
     <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
     <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
     <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
   </table>
   <input type="submit" name="checkoutbutton" value="Validate"  /><br />
   <table border="1">
     <tr><td>
       <table>
         <tr><td colspan="2">Student who should be logged in is:</td></tr>
         <tr><td>Name:</td><td>$name</td></tr>
         <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
         <tr><td>Usename</td><td>$user\@$domain</td></tr>
         <tr><td colspan="2"><img src="$url" /></td></tr>
       </table>
     </tr></td>
   </table>
   </form>
   ENDCHECKOUT
       return $result;
 }  }
   
 1;  1;
Removed from v.1.2  
changed lines
  Added in v.1.50

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