Diff for /loncom/interface/lonnavmaps.pm between versions 1.481 and 1.528

version 1.481, 2012/03/05 11:15:37 version 1.528, 2017/02/20 18:29:22
Line 2 Line 2
 # Navigate Maps Handler  # Navigate Maps Handler
 #  #
 # $Id$  # $Id$
   
 #  #
 # Copyright Michigan State University Board of Trustees  # Copyright Michigan State University Board of Trustees
 #  #
Line 164  If true, the resource's folder will not Line 163  If true, the resource's folder will not
 it. Default is false. True implies printCloseAll is false, since you  it. Default is false. True implies printCloseAll is false, since you
 can't close or open folders when this is on anyhow.  can't close or open folders when this is on anyhow.
   
   =item * B<map_no_edit_link>:
   
   If true, the title of the folder or page will not be followed by an
   icon/link to direct editing of a folder or composite page, originally
   added via the Course Editor.
   
 =back  =back
   
 =item * B<Apache::lonnavmaps::communication_status>:  =item * B<Apache::lonnavmaps::communication_status>:
Line 225  automatically. Line 230  automatically.
   
 =over 4  =over 4
   
 =item * B<iterator: default: constructs one from %env>  =item * B<iterator>: default: constructs one from %env
   
 A reference to a fresh ::iterator to use from the navmaps. The  A reference to a fresh ::iterator to use from the navmaps. The
 rendering will reflect the options passed to the iterator, so you can  rendering will reflect the options passed to the iterator, so you can
Line 484  use POSIX qw (floor strftime); Line 489  use POSIX qw (floor strftime);
 use Time::HiRes qw( gettimeofday tv_interval );  use Time::HiRes qw( gettimeofday tv_interval );
 use LONCAPA;  use LONCAPA;
 use DateTime();  use DateTime();
   use HTML::Entities;
   
 # For debugging  # For debugging
   
 # use Data::Dumper;  #use Data::Dumper;
   
   
 # symbolic constants  # symbolic constants
Line 612  sub getDescription { Line 618  sub getDescription {
         return &mt("Having technical difficulties; please check status later");           return &mt("Having technical difficulties; please check status later"); 
     }      }
     if ($status == $res->NOTHING_SET) {      if ($status == $res->NOTHING_SET) {
         return &Apache::lonhtmlcommon::direct_parm_link(&mt("Not currently assigned.",$res->symb(),'opendate'),$part);          return &Apache::lonhtmlcommon::direct_parm_link(&mt('Not currently assigned'),$res->symb(),'opendate',$part);
     }      }
     if ($status == $res->OPEN_LATER) {      if ($status == $res->OPEN_LATER) {
         return &mt("Open [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($open,'start'),$res->symb(),'opendate',$part));          return &mt("Open [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($open,'start'),$res->symb(),'opendate',$part));
     }      }
       my $slotinfo;
     if ($res->simpleStatus($part) == $res->OPEN) {      if ($res->simpleStatus($part) == $res->OPEN) {
         unless (&Apache::lonnet::allowed('mgr',$env{'request.course.id'})) {          unless (&Apache::lonnet::allowed('mgr',$env{'request.course.id'})) {
             my ($slot_status,$slot_time,$slot_name)=$res->check_for_slot($part);              my ($slot_status,$slot_time,$slot_name)=$res->check_for_slot($part);
               my $slotmsg;
             if ($slot_status == $res->UNKNOWN) {              if ($slot_status == $res->UNKNOWN) {
                 return &mt('Reservation status unknown');                  $slotmsg = &mt('Reservation status unknown');
             } elsif ($slot_status == $res->RESERVED) {              } elsif ($slot_status == $res->RESERVED) {
                 return &mt('Reserved - ends [_1]',                  $slotmsg = &mt('Reserved - ends [_1]',
                            timeToHumanString($slot_time,'end'));                             timeToHumanString($slot_time,'end'));
             } elsif ($slot_status == $res->RESERVED_LOCATION) {              } elsif ($slot_status == $res->RESERVED_LOCATION) {
                 return &mt('Reserved - specific location(s) - ends [_1]',                  $slotmsg = &mt('Reserved - specific location(s) - ends [_1]',
                            timeToHumanString($slot_time,'end'));                             timeToHumanString($slot_time,'end'));
             } elsif ($slot_status == $res->RESERVED_LATER) {              } elsif ($slot_status == $res->RESERVED_LATER) {
                 return &mt('Reserved - next open [_1]',                  $slotmsg = &mt('Reserved - next open [_1]',
                            timeToHumanString($slot_time,'start'));                             timeToHumanString($slot_time,'start'));
             } elsif ($slot_status == $res->RESERVABLE) {              } elsif ($slot_status == $res->RESERVABLE) {
                 return &mt('Reservable, reservations close [_1]',                  $slotmsg = &mt('Reservable, reservations close [_1]',
                            timeToHumanString($slot_time,'end'));                             timeToHumanString($slot_time,'end'));
             } elsif ($slot_status == $res->RESERVABLE_LATER) {              } elsif ($slot_status == $res->RESERVABLE_LATER) {
                 return &mt('Reservable, reservations open [_1]',                  $slotmsg = &mt('Reservable, reservations open [_1]',
                            timeToHumanString($slot_time,'start'));                             timeToHumanString($slot_time,'start'));
             } elsif ($slot_status == $res->NOT_IN_A_SLOT) {              } elsif ($slot_status == $res->NOT_IN_A_SLOT) {
                 return &mt('Reserve a time/place to work');                  $slotmsg = &mt('Reserve a time/place to work');
             } elsif ($slot_status == $res->NOTRESERVABLE) {              } elsif ($slot_status == $res->NOTRESERVABLE) {
                 return &mt('Reservation not available');                  $slotmsg = &mt('Reservation not available');
             } elsif ($slot_status == $res->WAITING_FOR_GRADE) {              } elsif ($slot_status == $res->WAITING_FOR_GRADE) {
                 return &mt('Submission in grading queue');                  $slotmsg = &mt('Submission in grading queue');
               }
               if ($slotmsg) {
                   if ($res->is_task() || !$due) {
                        return $slotmsg;
                   }
                   $slotinfo = ('&nbsp;' x 2).'('.$slotmsg.')';
             }              }
         }          }
     }      }
     if ($status == $res->OPEN) {      if ($status == $res->OPEN) {
         if ($due) {          if ($due) {
     if ($res->is_practice()) {      if ($res->is_practice()) {
  return &mt("Closes [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'start'),$res->symb(),'duedate',$part));   return &mt("Closes [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'start'),$res->symb(),'duedate',$part)).$slotinfo;
     } else {      } else {
  return &mt("Due [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'end'),$res->symb(),'duedate',$part));   return &mt("Due [_1]",&Apache::lonhtmlcommon::direct_parm_link(&timeToHumanString($due,'end'),$res->symb(),'duedate',$part)).$slotinfo;
     }      }
         } else {          } else {
             return &Apache::lonhtmlcommon::direct_parm_link(&mt("Open, no due date"),$res->symb(),'duedate',$part);              return &Apache::lonhtmlcommon::direct_parm_link(&mt("Open, no due date"),$res->symb(),'duedate',$part).$slotinfo;
         }          }
     }      }
     if ($status == $res->PAST_DUE_ANSWER_LATER) {      if ($status == $res->PAST_DUE_ANSWER_LATER) {
Line 691  sub getDescription { Line 705  sub getDescription {
         my $maxtries = $res->maxtries($part);          my $maxtries = $res->maxtries($part);
         my $triesString = "";          my $triesString = "";
         if ($tries && $maxtries) {          if ($tries && $maxtries) {
             $triesString = '<font size="-1"><i>('.&mt('[_1] of [quant,_2,try,tries] used',$tries,$maxtries).')</i></font>';              $triesString = '<span class="LC_fontsize_medium"><i>('.&mt('[_1] of [quant,_2,try,tries] used',$tries,$maxtries).')</i></span>';
             if ($maxtries > 1 && $maxtries - $tries == 1) {              if ($maxtries > 1 && $maxtries - $tries == 1) {
                 $triesString = "<b>$triesString</b>";                  $triesString = "<b>$triesString</b>";
             }              }
Line 900  sub render_resource { Line 914  sub render_resource {
     my $nonLinkedText = ''; # stuff after resource title not in link      my $nonLinkedText = ''; # stuff after resource title not in link
   
     my $link = $params->{"resourceLink"};      my $link = $params->{"resourceLink"};
       if ($resource->ext()) {
           $link =~ s/\#.+(\?)/$1/g;
       }
   
     #  The URL part is not escaped at this point, but the symb is...       #  The URL part is not escaped at this point, but the symb is... 
   
Line 978  sub render_resource { Line 995  sub render_resource {
             $linkopen = "";              $linkopen = "";
             $linkclose = "";              $linkclose = "";
         }          }
         if ((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) &&          if (((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) ||
                 (&Apache::lonnet::allowed('cev',$env{'request.course.id'}))) &&
             ($resource->symb=~/\_\_\_[^\_]+\_\_\_uploaded/)) {              ($resource->symb=~/\_\_\_[^\_]+\_\_\_uploaded/)) {
             my $icon = &Apache::loncommon::lonhttpdurl('/res/adm/pages').'/editmap.png';              if (!$params->{'map_no_edit_link'}) {
             $editmapLink='&nbsp;'.                  my $icon = &Apache::loncommon::lonhttpdurl('/res/adm/pages').'/editmap.png';
                          '<a href="/adm/coursedocs?command=direct&symb='.&escape($resource->symb()).'">'.                  $editmapLink='&nbsp;'.
                            '<a href="/adm/coursedocs?command=directnav&amp;symb='.&escape($resource->symb()).'">'.
                          '<img src="'.$icon.'" alt="'.&mt('Edit Content').'" title="'.&mt('Edit Content').'" />'.                           '<img src="'.$icon.'" alt="'.&mt('Edit Content').'" title="'.&mt('Edit Content').'" />'.
                          '</a>';                           '</a>';
               }
           }
           if ($params->{'mapHidden'} || $resource->randomout()) {
               $nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';
           }
       } else {
           if ($resource->randomout()) {
               $nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';
         }          }
     }  
   
     if ($resource->randomout()) {  
         $nonLinkedText .= ' <span class="LC_warning">('.&mt('hidden').')</span> ';  
     }      }
     if (!$resource->condval()) {      if (!$resource->condval()) {
         $nonLinkedText .= ' <span class="LC_info">('.&mt('conditionally hidden').')</span> ';          $nonLinkedText .= ' <span class="LC_info">('.&mt('conditionally hidden').')</span> ';
     }      }
     if (($resource->is_practice()) && ($resource->is_raw_problem())) {      if (($resource->is_practice()) && ($resource->is_raw_problem())) {
         $nonLinkedText .=' <font color="green"><b>'.&mt('not graded').'</b></font>';          $nonLinkedText .=' <span class="LC_info"><b>'.&mt('not graded').'</b></span>';
     }      }
   
     # We're done preparing and finally ready to start the rendering      # We're done preparing and finally ready to start the rendering
Line 1039  sub render_resource { Line 1062  sub render_resource {
     }      }
   
     if (!$params->{'resource_nolink'} && !$resource->is_sequence() && !$resource->is_empty_sequence) {      if (!$params->{'resource_nolink'} && !$resource->is_sequence() && !$resource->is_empty_sequence) {
         $result .= "$curMarkerBegin<a href=\"$link\">$title$partLabel</a>$curMarkerEnd$nonLinkedText</td>";          $result .= "$curMarkerBegin<a href=\"$link\">$title$partLabel</a>$curMarkerEnd$editmapLink$nonLinkedText</td>";
     } else {      } else {
         $result .= "$curMarkerBegin$linkopen$title$partLabel</a>$curMarkerEnd$editmapLink$nonLinkedText</td>";          $result .= "$curMarkerBegin$linkopen$title$partLabel</a>$curMarkerEnd$editmapLink$nonLinkedText</td>";
     }      }
Line 1128  sub render_long_status { Line 1151  sub render_long_status {
         $params->{'multipart'} && $part eq "0";          $params->{'multipart'} && $part eq "0";
                                   
     my $color;      my $color;
       my $info = '';
     if ($resource->is_problem() || $resource->is_practice()) {      if ($resource->is_problem() || $resource->is_practice()) {
         $color = $colormap{$resource->status};          $color = $colormap{$resource->status};
           
         if (dueInLessThan24Hours($resource, $part) ||          if (dueInLessThan24Hours($resource, $part)) {
             lastTry($resource, $part)) {  
             $color = $hurryUpColor;              $color = $hurryUpColor;
         }              $info = ' title="'.&mt('Due in less than 24 hours!').'"';
           } elsif (lastTry($resource, $part)) {
               unless (($resource->problemstatus($part) eq 'no') ||
                       ($resource->problemstatus($part) eq 'no_feedback_ever')) {
                   $color = $hurryUpColor;
                   $info = ' title="'.&mt('One try remaining!').'"';
               }
            }
     }      }
           
     if ($resource->kind() eq "res" &&      if ($resource->kind() eq "res" &&
         $resource->is_raw_problem() &&          $resource->is_raw_problem() &&
         !$firstDisplayed) {          !$firstDisplayed) {
         if ($color) {$result .= "<font color=\"$color\"><b>"; }          if ($color) {$result .= '<span style="color:'.$color.'"'.$info.'><b>'; }
         $result .= getDescription($resource, $part);          $result .= getDescription($resource, $part);
         if ($color) {$result .= "</b></font>"; }          if ($color) {$result .= "</b></span>"; }
     }      }
     if ($resource->is_map() && &advancedUser() && $resource->randompick()) {      if ($resource->is_map() && &advancedUser() && $resource->randompick()) {
         $result .= &mt('(randomly select [_1])', $resource->randompick());          $result .= &mt('(randomly select [_1])', $resource->randompick());
Line 1224  sub render_parts_summary_status { Line 1254  sub render_parts_summary_status {
     }      }
     $return.= $td . $totalParts . ' parts: ';      $return.= $td . $totalParts . ' parts: ';
     foreach my $status (@statuses) {      foreach my $status (@statuses) {
  if ($overallstatus{$status}) {          if ($overallstatus{$status}) {
     $return.="<font color='" . $statusColors{$status} .              $return.='<span style="color:' . $statusColors{$status}
  "'>" . $overallstatus{$status} . ' '                     . '">' . $overallstatus{$status} . ' '
  . $statusStrings{$status} . "</font>";                     . $statusStrings{$status} . '</span>';
  }          }
     }      }
     $return.= $endtd;      $return.= $endtd;
     return $return;      return $return;
Line 1398  sub render { Line 1428  sub render {
         }          }
     }      }
   
   
     # (re-)Locate the jump point, if any      # (re-)Locate the jump point, if any
     # Note this does not take filtering or hidden into account... need      # Note this does not take filtering or hidden into account... need
     # to be fixed?      # to be fixed?
Line 1482  sub render { Line 1511  sub render {
       'document.clearbubbles.submit()',        'document.clearbubbles.submit()',
       'Mark all posts read');        'Mark all posts read');
  my $time=time;   my $time=time;
           my $querystr = &HTML::Entities::encode($ENV{'QUERY_STRING'},'<>&"');
  $result .= (<<END);   $result .= (<<END);
     <form name="clearbubbles" method="post" action="/adm/feedback">      <form name="clearbubbles" method="post" action="/adm/feedback">
  <input type="hidden" name="navurl" value="$ENV{'QUERY_STRING'}" />   <input type="hidden" name="navurl" value="$querystr" />
  <input type="hidden" name="navtime" value="$time" />   <input type="hidden" name="navtime" value="$time" />
 END  END
         if ($env{'form.register'}) {          if ($env{'form.register'}) {
Line 1511  END Line 1541  END
  $result.='</form>';   $result.='</form>';
     }      }
     if (($args->{'caller'} eq 'navmapsdisplay') &&      if (($args->{'caller'} eq 'navmapsdisplay') &&
         (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {          ((&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) ||
            (&Apache::lonnet::allowed('cev',$env{'request.course.id'})))) {
         my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};          my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
         my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};          my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
         if ($env{'course.'.$env{'request.course.id'}.'.url'} eq           if ($env{'course.'.$env{'request.course.id'}.'.url'} eq 
Line 1557  END Line 1588  END
     $args->{'indentString'} = setDefault($args->{'indentString'}, "<img src='$location' alt='' />");      $args->{'indentString'} = setDefault($args->{'indentString'}, "<img src='$location' alt='' />");
     $args->{'displayedHereMarker'} = 0;      $args->{'displayedHereMarker'} = 0;
   
     # If we're suppressing empty sequences, look for them here. Use DFS for speed,      # If we're suppressing empty sequences, look for them here.
     # since structure actually doesn't matter, except what map has what resources.      # We also do this even if $args->{'suppressEmptySequences'}
     if ($args->{'suppressEmptySequences'}) {      # is not true, so we can hide empty sequences for which the
         my $dfsit = Apache::lonnavmaps::DFSiterator->new($navmap,      # hiddenresource parameter is set to yes (at map level), or
                                                          $it->{FIRST_RESOURCE},      # mark as hidden for users who have $userCanSeeHidden.  
                                                          $it->{FINISH_RESOURCE},      # Use DFS for speed, since structure actually doesn't matter,
                                                          {}, undef, 1);      # except what map has what resources.
         my $depth = 0;  
         $dfsit->next();      my $dfsit = Apache::lonnavmaps::DFSiterator->new($navmap,
         my $curRes = $dfsit->next();                                                       $it->{FIRST_RESOURCE},
         while ($depth > -1) {                                                       $it->{FINISH_RESOURCE},
             if ($curRes == $dfsit->BEGIN_MAP()) { $depth++; }                                                       {}, undef, 1);
             if ($curRes == $dfsit->END_MAP()) { $depth--; }      my $depth = 0;
       $dfsit->next();
             if (ref($curRes)) {       my $curRes = $dfsit->next();
                 # Parallel pre-processing: Do sequences have non-filtered-out children?      while ($depth > -1) {
                 if ($curRes->is_map()) {          if ($curRes == $dfsit->BEGIN_MAP()) { $depth++; }
                     $curRes->{DATA}->{HAS_VISIBLE_CHILDREN} = 0;          if ($curRes == $dfsit->END_MAP()) { $depth--; }
                     # Sequences themselves do not count as visible children,  
                     # unless those sequences also have visible children.          if (ref($curRes)) { 
                     # This means if a sequence appears, there's a "promise"              # Parallel pre-processing: Do sequences have non-filtered-out children?
                     # that there's something under it if you open it, somewhere.              if ($curRes->is_map()) {
                 } else {                  $curRes->{DATA}->{HAS_VISIBLE_CHILDREN} = 0;
                     # Not a sequence: if it's filtered, ignore it, otherwise                  # Sequences themselves do not count as visible children,
                     # rise up the stack and mark the sequences as having children                  # unless those sequences also have visible children.
                     if (&$filterFunc($curRes)) {                  # This means if a sequence appears, there's a "promise"
                         for my $sequence (@{$dfsit->getStack()}) {                  # that there's something under it if you open it, somewhere.
                             $sequence->{DATA}->{HAS_VISIBLE_CHILDREN} = 1;              } elsif ($curRes->src()) {
                         }                  # Not a sequence: if it's filtered, ignore it, otherwise
                   # rise up the stack and mark the sequences as having children
                   if (&$filterFunc($curRes)) {
                       for my $sequence (@{$dfsit->getStack()}) {
                           $sequence->{DATA}->{HAS_VISIBLE_CHILDREN} = 1;
                     }                      }
                 }                  }
             }              }
         } continue {  
             $curRes = $dfsit->next();  
         }          }
       } continue {
           $curRes = $dfsit->next();
     }      }
   
     my $displayedJumpMarker = 0;      my $displayedJumpMarker = 0;
Line 1649  END Line 1684  END
  undef($args->{'sort'});   undef($args->{'sort'});
     }      }
   
       # Determine if page will be served with https in case
       # it contains a syllabus which uses an external URL
       # which points at an http site.
   
       my ($is_ssl,$cdom,$cnum);
       if ($ENV{'SERVER_PORT'} == 443) {
           $is_ssl = 1;
       }
       if ($env{'request.course.id'}) {
           $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
           $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
       }
   
     while (1) {      while (1) {
  if ($args->{'sort'}) {   if ($args->{'sort'}) {
     $curRes = shift(@resources);      $curRes = shift(@resources);
  } else {   } else {
     $curRes = $it->next($closeAllPages);      $curRes = $it->next($closeAllPages);
   
  }   }
  if (!$curRes) { last; }   if (!$curRes) { last; }
   
Line 1685  END Line 1731  END
         }           } 
   
         # If this is an empty sequence and we're filtering them, continue on          # If this is an empty sequence and we're filtering them, continue on
         if ($curRes->is_map() && $args->{'suppressEmptySequences'} &&          $args->{'mapHidden'} = 0;
             !$curRes->{DATA}->{HAS_VISIBLE_CHILDREN}) {          if (($curRes->is_map()) && (!$curRes->{DATA}->{HAS_VISIBLE_CHILDREN})) {
             next;              if ($args->{'suppressEmptySequences'}) {
                   next;
               } else {
                   my $mapname = &Apache::lonnet::declutter($curRes->src());
                   $mapname = &Apache::lonnet::deversion($mapname); 
                   if (lc($navmap->get_mapparam(undef,$mapname,"0.hiddenresource")) eq 'yes') {
                       if ($userCanSeeHidden) {
                           $args->{'mapHidden'} = 1;
                       } else {
                           next;
                       }
                   }
               }
         }          }
   
         # If we're suppressing navmaps and this is a navmap, continue on          # If we're suppressing navmaps and this is a navmap, continue on
Line 1771  END Line 1829  END
  $stack=$it->getStack();   $stack=$it->getStack();
     }      }
     ($src,$symb,$anchor)=getLinkForResource($stack);      ($src,$symb,$anchor)=getLinkForResource($stack);
               my $srcHasQuestion = $src =~ /\?/;
               if ($env{'request.course.id'}) {
                   if (($src =~ m{^\Q/public/$cdom/$cnum/syllabus\E($|\?)}) && ($is_ssl) &&
                       ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) {
                       my $hostname = $r->hostname();
                       if ($hostname ne '') {
                           $src = 'http://'.$hostname.$src;
                       }
                       $src .= ($srcHasQuestion? '&amp;' : '?') . 'usehttp=1';
                       $srcHasQuestion = 1;
                   }
               }
     if (defined($anchor)) { $anchor='#'.$anchor; }      if (defined($anchor)) { $anchor='#'.$anchor; }
     my $srcHasQuestion = $src =~ /\?/;  
     $args->{"resourceLink"} = $src.      $args->{"resourceLink"} = $src.
  ($srcHasQuestion?'&amp;':'?') .   ($srcHasQuestion?'&amp;':'?') .
  'symb=' . &escape($symb).$anchor;   'symb=' . &escape($symb).$anchor;
Line 1827  END Line 1896  END
     }      }
  }   }
     }      }
   
       $result.=&Apache::loncommon::end_data_table();
           
     # Print out the part that jumps to #curloc if it exists      # Print out the part that jumps to #curloc if it exists
     # delay needed because the browser is processing the jump before      # delay needed because the browser is processing the jump before
Line 1843  if (location.href.indexOf('#curloc')==-1 Line 1914  if (location.href.indexOf('#curloc')==-1
 ");  ");
     }      }
   
     $result.=&Apache::loncommon::end_data_table();  
   
     if ($r) {      if ($r) {
         $r->print($result);          $r->print($result);
         $result = "";          $result = "";
Line 1875  sub show_linkitems_toolbar { Line 1944  sub show_linkitems_toolbar {
                           '<td class="LC_middle">'.&mt('Tools:').'</td>';                            '<td class="LC_middle">'.&mt('Tools:').'</td>';
             }              }
             $result .= '<td align="left">'."\n".              $result .= '<td align="left">'."\n".
                        '<span class="LC_nobreak">'."\n".  
                        '<ul id="LC_toolbar">';                         '<ul id="LC_toolbar">';
             my @linkorder = ('firsthomework','everything','uncompleted',              my @linkorder = ('firsthomework','everything','uncompleted',
                              'changefolder','clearbubbles','edittoplevel');                               'changefolder','clearbubbles','edittoplevel');
Line 1903  sub show_linkitems_toolbar { Line 1971  sub show_linkitems_toolbar {
                 }                  }
             }              }
             $result .= '</ul>'.              $result .= '</ul>'.
                        '</span></td>';                         '</td>';
             if (($numlinks==1) && (exists($args->{'linkitems'}{'edittoplevel'}))) {              if (($numlinks==1) && (exists($args->{'linkitems'}{'edittoplevel'}))) {
                 $result .= '<td><a href="'.$args->{'linkitems'}{'edittoplevel'}{'cmd'}.'">'.                  $result .= '<td><a href="'.$args->{'linkitems'}{'edittoplevel'}{'cmd'}.'">'.
                            &mt('Content Editor').'</a></td>';                             &mt('Content Editor').'</a></td>';
Line 2006  sub new { Line 2074  sub new {
     my $proto = shift;      my $proto = shift;
     my $class = ref($proto) || $proto;      my $class = ref($proto) || $proto;
     my $self = {};      my $self = {};
     bless($self); # So we can call change_user if neceesary      bless($self); # So we can call change_user if necessary
   
     $self->{USERNAME} = shift || $env{'user.name'};      $self->{USERNAME} = shift || $env{'user.name'};
     $self->{DOMAIN}   = shift || $env{'user.domain'};      $self->{DOMAIN}   = shift || $env{'user.domain'};
       $self->{CODE}     = shift;
       $self->{NOHIDE} = shift;
   
   
   
Line 2023  sub new { Line 2093  sub new {
   
     # We can only tie the nav hash as done below if the username/domain      # We can only tie the nav hash as done below if the username/domain
     # match the env one. Otherwise change_user does everything we need...since we can't      # match the env one. Otherwise change_user does everything we need...since we can't
     # assume there are course hashes for the specific requested user@domamin:      # assume there are course hashes for the specific requested user:domain
       # Note: change_user is also called if we need the nav hash when printing CODEd 
       # assignments or printing an exam, in which the enclosing folder for the items in
       # the exam has hidden set.
     #      #
   
     if ( ($self->{USERNAME} eq $env{'user.name'}) && ($self->{DOMAIN} eq $env{'user.domain'})) {      if (($self->{USERNAME} eq $env{'user.name'}) && ($self->{DOMAIN} eq $env{'user.domain'}) &&
            !$self->{CODE} && !$self->{NOHIDE}) {
   
  # tie the nav hash   # tie the nav hash
   
Line 2049  sub new { Line 2123  sub new {
  $self->{PARM_HASH} = \%parmhash;   $self->{PARM_HASH} = \%parmhash;
  $self->{PARM_CACHE} = {};   $self->{PARM_CACHE} = {};
     } else {      } else {
  $self->change_user($self->{USERNAME}, $self->{DOMAIN});   $self->change_user($self->{USERNAME}, $self->{DOMAIN},  $self->{CODE}, $self->{NOHIDE});
     }      }
   
     my $d = Data::Dumper->new([$self]);  
   
     return $self;      return $self;
 }  }
   
Line 2064  sub new { Line 2136  sub new {
 # Parameters:  # Parameters:
 #    user  - New user.  #    user  - New user.
 #    domain- Domain the user belongs to.  #    domain- Domain the user belongs to.
   #    code  - Anonymous CODE in use.
 # Implicit inputs:  # Implicit inputs:
 #     #   
 sub change_user {  sub change_user {
     my $self = shift;      my $self = shift;
     $self->{USERNAME} = shift;      $self->{USERNAME} = shift;
     $self->{DOMAIN}   = shift;      $self->{DOMAIN}   = shift;
       $self->{CODE}     = shift;
       $self->{NOHIDE}   = shift;
   
     # If the hashes are already tied make sure to break that bond:      # If the hashes are already tied make sure to break that bond:
   
Line 2085  sub change_user { Line 2160  sub change_user {
     my ($cdom, $cnum) = split(/\_/, $env{'request.course.id'});      my ($cdom, $cnum) = split(/\_/, $env{'request.course.id'});
   
     my %big_hash;      my %big_hash;
     &Apache::lonmap::loadmap($cnum, $cdom, $self->{USERNAME}, $self->{DOMAIN}, \%big_hash);      &Apache::lonmap::loadmap($cnum, $cdom, $self->{USERNAME}, $self->{DOMAIN}, $self->{CODE}, $self->{NOHIDE}, \%big_hash);
     $self->{NAV_HASH} = \%big_hash;      $self->{NAV_HASH} = \%big_hash;
   
   
   
     # Now clear the parm cache and reconstruct the parm hash fromt he big_hash      # Now clear the parm cache and reconstruct the parm hash from the big_hash
     # param.xxxx keys.      # param.xxxx keys.
   
     $self->{PARM_CACHE} = {};      $self->{PARM_CACHE} = {};
           
     my %parm_hash = {};      my %parm_hash = {};
     foreach my $key (keys %big_hash) {      foreach my $key (keys(%big_hash)) {
  if ($key =~ /^param\./) {   if ($key =~ /^param\./) {
     my $param_key = $key;      my $param_key = $key;
     $param_key =~ s/^param\.//;      $param_key =~ s/^param\.//;
Line 2105  sub change_user { Line 2180  sub change_user {
     }      }
   
     $self->{PARM_HASH} = \%parm_hash;      $self->{PARM_HASH} = \%parm_hash;
      
   
   
       }
 }   
   
 sub generate_course_user_opt {  sub generate_course_user_opt {
     my $self = shift;      my $self = shift;
Line 2151  sub generate_course_user_opt { Line 2223  sub generate_course_user_opt {
     return;      return;
 }  }
   
   
   
 sub generate_email_discuss_status {  sub generate_email_discuss_status {
     my $self = shift;      my $self = shift;
     my $symb = shift;      my $symb = shift;
Line 2170  sub generate_email_discuss_status { Line 2244  sub generate_email_discuss_status {
     my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',      my %lastread = &Apache::lonnet::dump('nohist_'.$cid.'_discuss',
                                         $self->{DOMAIN},$self->{USERNAME},'lastread');                                          $self->{DOMAIN},$self->{USERNAME},'lastread');
     my %lastreadtime = ();      my %lastreadtime = ();
     foreach my $key (keys %lastread) {      foreach my $key (keys(%lastread)) {
         my $shortkey = $key;          my $shortkey = $key;
         $shortkey =~ s/_lastread$//;          $shortkey =~ s/_lastread$//;
         $lastreadtime{$shortkey} = $lastread{$key};          $lastreadtime{$shortkey} = $lastread{$key};
Line 2556  sub parmval { Line 2630  sub parmval {
             return $self->{PARM_CACHE}->{$hashkey};              return $self->{PARM_CACHE}->{$hashkey};
         }          }
     }      }
   
     my $result = $self->parmval_real($what, $symb, $recurse);      my $result = $self->parmval_real($what, $symb, $recurse);
     $self->{PARM_CACHE}->{$hashkey} = $result;      $self->{PARM_CACHE}->{$hashkey} = $result;
     if (wantarray) {      if (wantarray) {
Line 2564  sub parmval { Line 2639  sub parmval {
     return $result->[0];      return $result->[0];
 }  }
   
   
 sub parmval_real {  sub parmval_real {
     my $self = shift;      my $self = shift;
     my ($what,$symb,$recurse) = @_;      my ($what,$symb,$recurse) = @_;
   
   
     # Make sure the {USER_OPT} and {COURSE_OPT} hashes are populated      # Make sure the {USER_OPT} and {COURSE_OPT} hashes are populated
     $self->generate_course_user_opt();      $self->generate_course_user_opt();
   
Line 2587  sub parmval_real { Line 2664  sub parmval_real {
   
     my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);      my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
     $mapname = &Apache::lonnet::deversion($mapname);      $mapname = &Apache::lonnet::deversion($mapname);
       my ($recursed,@recurseup); 
       
 # ----------------------------------------------------- Cascading lookup scheme  # ----------------------------------------------------- Cascading lookup scheme
     my $rwhat=$what;      my $rwhat=$what;
     $what=~s/^parameter\_//;      $what=~s/^parameter\_//;
     $what=~s/\_/\./;      $what=~s/\_/\./;
   
     my $symbparm=$symb.'.'.$what;      my $symbparm=$symb.'.'.$what;
       my $recurseparm=$mapname.'___(rec).'.$what;
     my $mapparm=$mapname.'___(all).'.$what;      my $mapparm=$mapname.'___(all).'.$what;
     my $usercourseprefix=$cid;      my $usercourseprefix=$cid;
       
   
   
     my $grplevel=$usercourseprefix.'.['.$cgroup.'].'.$what;      my $grplevel=$usercourseprefix.'.['.$cgroup.'].'.$what;
     my $grplevelr=$usercourseprefix.'.['.$cgroup.'].'.$symbparm;      my $grplevelr=$usercourseprefix.'.['.$cgroup.'].'.$symbparm;
       my $grpleveli=$usercourseprefix.'.['.$cgroup.'].'.$recurseparm;
     my $grplevelm=$usercourseprefix.'.['.$cgroup.'].'.$mapparm;      my $grplevelm=$usercourseprefix.'.['.$cgroup.'].'.$mapparm;
   
   
     my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;      my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;
     my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;      my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;
       my $secleveli=$usercourseprefix.'.['.$csec.'].'.$recurseparm;
     my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;      my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;
   
   
     my $courselevel= $usercourseprefix.'.'.$what;      my $courselevel= $usercourseprefix.'.'.$what;
     my $courselevelr=$usercourseprefix.'.'.$symbparm;      my $courselevelr=$usercourseprefix.'.'.$symbparm;
       my $courseleveli=$usercourseprefix.'.'.$recurseparm;
     my $courselevelm=$usercourseprefix.'.'.$mapparm;      my $courselevelm=$usercourseprefix.'.'.$mapparm;
   
   
     my $useropt = $self->{USER_OPT};      my $useropt = $self->{USER_OPT};
     my $courseopt = $self->{COURSE_OPT};      my $courseopt = $self->{COURSE_OPT};
     my $parmhash = $self->{PARM_HASH};      my $parmhash = $self->{PARM_HASH};
Line 2616  sub parmval_real { Line 2704  sub parmval_real {
     if ($uname and defined($useropt)) {      if ($uname and defined($useropt)) {
         if (defined($$useropt{$courselevelr})) { return [$$useropt{$courselevelr},'resource']; }          if (defined($$useropt{$courselevelr})) { return [$$useropt{$courselevelr},'resource']; }
         if (defined($$useropt{$courselevelm})) { return [$$useropt{$courselevelm},'map']; }          if (defined($$useropt{$courselevelm})) { return [$$useropt{$courselevelm},'map']; }
           if (defined($$useropt{$courseleveli})) { return [$$useropt{$courseleveli},'map']; }
           unless ($recursed) {
               @recurseup = $self->recurseup_maps($mapname);
               $recursed = 1;
           }
           foreach my $item (@recurseup) {
               my $norecursechk=$usercourseprefix.'.'.$item.'___(all).'.$what;
               if (defined($$useropt{$norecursechk})) {
                   if ($what =~ /\.(encrypturl|hiddenresource)$/) {
                       return [$$useropt{$norecursechk},'map'];
                   } else {
                       last;
                   }
               }
               my $recursechk=$usercourseprefix.'.'.$item.'___(rec).'.$what;
               if (defined($$useropt{$recursechk})) { return [$$useropt{$recursechk},'map']; } 
           }
         if (defined($$useropt{$courselevel})) { return [$$useropt{$courselevel},'course']; }          if (defined($$useropt{$courselevel})) { return [$$useropt{$courselevel},'course']; }
     }      }
   
Line 2623  sub parmval_real { Line 2728  sub parmval_real {
     if ($cgroup ne '' and defined($courseopt)) {      if ($cgroup ne '' and defined($courseopt)) {
         if (defined($$courseopt{$grplevelr})) { return [$$courseopt{$grplevelr},'resource']; }          if (defined($$courseopt{$grplevelr})) { return [$$courseopt{$grplevelr},'resource']; }
         if (defined($$courseopt{$grplevelm})) { return [$$courseopt{$grplevelm},'map']; }          if (defined($$courseopt{$grplevelm})) { return [$$courseopt{$grplevelm},'map']; }
           if (defined($$courseopt{$grpleveli})) { return [$$courseopt{$grpleveli},'map']; } 
           unless ($recursed) {
               @recurseup = $self->recurseup_maps($mapname);
               $recursed = 1;
           }
           foreach my $item (@recurseup) {
               my $norecursechk=$usercourseprefix.'.['.$cgroup.'].'.$item.'___(all).'.$what;
               if (defined($$courseopt{$norecursechk})) {
                   if ($what =~ /\.(encrypturl|hiddenresource)$/) {
                       return [$$courseopt{$norecursechk},'map'];
                   } else {
                      last;
                   }
               }
               my $recursechk=$usercourseprefix.'.['.$cgroup.'].'.$item.'___(rec).'.$what;
               if (defined($$courseopt{$recursechk})) { return [$$courseopt{$recursechk},'map']; }      
           }
         if (defined($$courseopt{$grplevel})) { return [$$courseopt{$grplevel},'course']; }          if (defined($$courseopt{$grplevel})) { return [$$courseopt{$grplevel},'course']; }
     }      }
   
     if ($csec and defined($courseopt)) {      if ($csec ne '' and defined($courseopt)) {
         if (defined($$courseopt{$seclevelr})) { return [$$courseopt{$seclevelr},'resource']; }          if (defined($$courseopt{$seclevelr})) { return [$$courseopt{$seclevelr},'resource']; }
         if (defined($$courseopt{$seclevelm})) { return [$$courseopt{$seclevelm},'map']; }          if (defined($$courseopt{$seclevelm})) { return [$$courseopt{$seclevelm},'map']; }
           if (defined($$courseopt{$secleveli})) { return [$$courseopt{$secleveli},'map']; } 
           unless ($recursed) {
               @recurseup = $self->recurseup_maps($mapname);
               $recursed = 1;
           }
           foreach my $item (@recurseup) {
               my $norecursechk=$usercourseprefix.'.['.$csec.'].'.$item.'___(all).'.$what;
               if (defined($$courseopt{$norecursechk})) {
                   if ($what =~ /\.(encrypturl|hiddenresource)$/) {
                       return [$$courseopt{$norecursechk},'map'];
                   } else {
                       last;
                   }
               }
               my $recursechk=$usercourseprefix.'.['.$csec.'].'.$item.'___(rec).'.$what;
               if (defined($$courseopt{$recursechk})) { return [$$courseopt{$recursechk},'map']; }
           }
         if (defined($$courseopt{$seclevel})) { return [$$courseopt{$seclevel},'course']; }          if (defined($$courseopt{$seclevel})) { return [$$courseopt{$seclevel},'course']; }
     }      }
   
Line 2652  sub parmval_real { Line 2791  sub parmval_real {
 # --------------------------------------------------- fifth, check more course  # --------------------------------------------------- fifth, check more course
     if (defined($courseopt)) {      if (defined($courseopt)) {
         if (defined($$courseopt{$courselevelm})) { return [$$courseopt{$courselevelm},'map']; }          if (defined($$courseopt{$courselevelm})) { return [$$courseopt{$courselevelm},'map']; }
           if (defined($$courseopt{$courseleveli})) { return [$$courseopt{$courseleveli},'map']; }
           unless ($recursed) {
               @recurseup = $self->recurseup_maps($mapname);
               $recursed = 1;
           }
           foreach my $item (@recurseup) {
               my $norecursechk=$usercourseprefix.'.'.$item.'___(all).'.$what;
               if (defined($$courseopt{$norecursechk})) {
                   if ($what =~ /\.(encrypturl|hiddenresource)$/) {
                       return [$$courseopt{$norecursechk},'map'];
                   } else {
                       last;
                   }
               }
               my $recursechk=$usercourseprefix.'.'.$item.'___(rec).'.$what;
               if (defined($$courseopt{$recursechk})) {
                   return [$$courseopt{$recursechk},'map'];
               }
           }
         if (defined($$courseopt{$courselevel})) {          if (defined($$courseopt{$courselevel})) {
            my $ret = [$$courseopt{$courselevel},'course'];             my $ret = [$$courseopt{$courselevel},'course'];
            return $ret;             return $ret;
Line 2675  sub parmval_real { Line 2833  sub parmval_real {
     return [''];      return [''];
 }  }
   
   sub recurseup_maps {
       my ($self,$mapname) = @_;
       my @recurseup;
       if ($mapname) {
           my $res = $self->getResourceByUrl($mapname);
           if (ref($res)) {
               my @pcs = split(/,/,$res->map_hierarchy());
               shift(@pcs);
               if (@pcs) {
                   @recurseup = map { &Apache::lonnet::declutter($self->getByMapPc($_)->src()); } reverse(@pcs);
               }
           }
       }
       return @recurseup;
   }
   
   #
   #  Determines the open/close dates for printing a map that
   #  encloses a resource.
   #
   sub map_printdates {
       my ($self, $res, $part) = @_;
   
   
   
   
   
       my $opendate = $self->get_mapparam($res->symb(),'',"$part.printstartdate");
       my $closedate= $self->get_mapparam($res->symb(),'',"$part.printenddate");
   
   
       return ($opendate, $closedate);
   }
   
   sub get_mapparam {
       my ($self, $symb, $mapname, $what) = @_;
   
       # Ensure the course option hash is populated:
   
       $self->generate_course_user_opt();
   
       # Get the course id and section if there is one.
   
       my $cid=$env{'request.course.id'};
       my $csec=$env{'request.course.sec'};
       my $cgroup='';
       my @cgrps=split(/:/,$env{'request.course.groups'});
       if (@cgrps > 0) {
           @cgrps = sort(@cgrps);
           $cgroup = $cgrps[0];
       } 
       my $uname=$self->{USERNAME};
       my $udom=$self->{DOMAIN};
   
       unless ($symb || $mapname) { return; }
       my $result='';
       my ($recursed,@recurseup);
   
   
       # Figure out which map we are in.
   
       if ($symb && !$mapname) {
           my ($id,$fn);
           ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
           $mapname = &Apache::lonnet::deversion($mapname);
       }
   
   
       my $rwhat=$what;
       $what=~s/^parameter\_//;
       $what=~s/\_/\./;
   
       # Build the hash keys for the lookup:
   
       my $mapparm=$mapname.'___(all).'.$what;
       my $recurseparm=$mapname.'___(rec).'.$what; 
       my $usercourseprefix=$cid;
   
   
       my $grplevelm    = "$usercourseprefix.[$cgroup].$mapparm";
       my $seclevelm    = "$usercourseprefix.[$csec].$mapparm";
       my $courselevelm = "$usercourseprefix.$mapparm";
   
       my $grpleveli    = "$usercourseprefix.[$cgroup].$recurseparm";
       my $secleveli    = "$usercourseprefix.[$csec].$recurseparm";
       my $courseleveli = "$usercourseprefix.$recurseparm";
   
       # Get handy references to the hashes we need in $self:
   
       my $useropt = $self->{USER_OPT};
       my $courseopt = $self->{COURSE_OPT};
       my $parmhash = $self->{PARM_HASH};
   
       # Check per user 
   
   
   
       if ($uname and defined($useropt)) {
    if (defined($$useropt{$courselevelm})) {
       return $$useropt{$courselevelm};
    }
           if (defined($$useropt{$courseleveli})) {
               return $$useropt{$courseleveli};
           }
           unless ($recursed) {
               @recurseup = $self->recurseup_maps($mapname);
               $recursed = 1;
           }
           foreach my $item (@recurseup) {
               my $norecursechk=$usercourseprefix.'.'.$item.'___(all).'.$what;
               if (defined($$useropt{$norecursechk})) {
                   if ($what =~ /\.(encrypturl|hiddenresource)$/) {
                       return $$useropt{$norecursechk};
                   } else {
                       last;
                   }
               }
               my $recursechk=$usercourseprefix.'.'.$item.'___(rec).'.$what;
               if (defined($$useropt{$recursechk})) {
                   return $$useropt{$recursechk};
               }
           }
       }
   
       # Check course -- group
   
   
   
       if ($cgroup ne '' and defined ($courseopt)) {
    if (defined($$courseopt{$grplevelm})) {
       return $$courseopt{$grplevelm};
    }
           if (defined($$courseopt{$grpleveli})) {
               return $$courseopt{$grpleveli};
           }
           unless ($recursed) {
               @recurseup = $self->recurseup_maps($mapname);
               $recursed = 1;
           }
           foreach my $item (@recurseup) {
               my $norecursechk=$usercourseprefix.'.['.$cgroup.'].'.$item.'___(all).'.$what;
               if (defined($$courseopt{$norecursechk})) {
                   if ($what =~ /\.(encrypturl|hiddenresource)$/) {
                       return $$courseopt{$norecursechk};
                   } else {
                       last;
                   }
               }
               my $recursechk=$usercourseprefix.'.['.$cgroup.'].'.$item.'___(rec).'.$what;
               if (defined($$courseopt{$recursechk})) {
                   return $$courseopt{$recursechk};
               }
           }
       }
   
       # Check course -- section
   
   
       if ($csec ne '' and defined($courseopt)) {
    if (defined($$courseopt{$seclevelm})) {
       return $$courseopt{$seclevelm};
    }
           if (defined($$courseopt{$secleveli})) {
               return $$courseopt{$secleveli};
           }
           unless ($recursed) {
               @recurseup = $self->recurseup_maps($mapname);
               $recursed = 1;
           }
           foreach my $item (@recurseup) {
               my $norecursechk=$usercourseprefix.'.['.$csec.'].'.$item.'___(all).'.$what;
               if (defined($$courseopt{$norecursechk})) {
                   if ($what =~ /\.(encrypturl|hiddenresource)$/) {
                       return $$courseopt{$norecursechk};
                   } else {
                       last;
                   }
               }
               my $recursechk=$usercourseprefix.'.['.$csec.'].'.$item.'___(rec).'.$what;
               if (defined($$courseopt{$recursechk})) {
                   return $$courseopt{$recursechk};
               }
           }
       }
       # Check the map parameters themselves:
   
       if ($symb) {
           my $symbparm=$symb.'.'.$what;
           my $thisparm = $$parmhash{$symbparm};
           if (defined($thisparm)) {
       return $thisparm;
           }
       }
   
   
       # Additional course parameters:
   
       if (defined($courseopt)) {
    if (defined($$courseopt{$courselevelm})) {
       return $$courseopt{$courselevelm};
    }
           unless ($recursed) {
               @recurseup = $self->recurseup_maps($mapname);
               $recursed = 1;
           }
           if (@recurseup) {
               foreach my $item (@recurseup) {
                   my $norecursechk=$usercourseprefix.'.'.$item.'___(all).'.$what;
                   if (defined($$courseopt{$norecursechk})) {
                       if ($what =~ /\.(encrypturl|hiddenresource)$/) {
                           return $$courseopt{$norecursechk};
                       } else {
                           last;
                       }
                   }
                   my $recursechk=$usercourseprefix.'.'.$item.'___(rec).'.$what;
                   if (defined($$courseopt{$recursechk})) {
                       return $$courseopt{$recursechk};
                   }
               }
           }
       }
       return undef; # Undefined if we got here.
   }
   
   sub course_printdates {
       my ($self, $symb,  $part) = @_;
   
   
       my $opendate  = $self->getcourseparam($symb, $part . '.printstartdate');
       my $closedate = $self->getcourseparam($symb, $part . '.printenddate');
       return ($opendate, $closedate);
   
   }
   
   sub getcourseparam {
       my ($self, $symb, $what) = @_;
   
       $self->generate_course_user_opt(); # If necessary populate the hashes.
   
       my $uname = $self->{USERNAME};
       my $udom  = $self->{DOMAIN};
       
       # Course, section, group ids come from the env:
   
       my $cid   = $env{'request.course.id'};
       my $csec  = $env{'request.course.sec'};
       my $cgroup = ''; # Assume no group
   
       my @cgroups = split(/:/, $env{'request.course.groups'});
       if(@cgroups > 0) {
    @cgroups = sort(@cgroups);
    $cgroup  = $cgroups[0]; # There is a course group. 
      }
       my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
       $mapname = &Apache::lonnet::deversion($mapname);
   
       #
       # Make the various lookup keys:
       #
   
       $what=~s/^parameter\_//;
       $what=~s/\_/\./;
   
       # Local refs to the hashes we're going to look at:
   
       my $useropt   = $self->{USER_OPT};
       my $courseopt = $self->{COURSE_OPT};
   
       # 
       # We want the course level stuff from the way
       # parmval_real operates 
       # TODO: Factor some of this stuff out of
       # both parmval_real and here
       #
       my $courselevel = $cid . '.' .  $what;
       my $grplevel    = $cid . '.[' . $cgroup   . ']' . $what;
       my $seclevel    = $cid . '.[' . $csec     . ']' . $what;
   
   
       # Try for the user's course level option:
   
       if ($uname and defined($useropt)) {
    if (defined($$useropt{$courselevel})) {
       return $$useropt{$courselevel};
    }
       }
       # Try for the group's course level option:
   
       if ($cgroup ne '' and defined($courseopt)) {
    if (defined($$courseopt{$grplevel})) {
       return $$courseopt{$grplevel};
    }
       }
   
       #  Try for section level parameters:
   
       if ($csec ne '' and defined($courseopt)) {
    if (defined($$courseopt{$seclevel})) {
       return $$courseopt{$seclevel};
    }
       }
       # Try for 'additional' course parameters:
   
       if (defined($courseopt)) {
    if (defined($$courseopt{$courselevel})) {
       return $$courseopt{$courselevel};
    }
       }
       return undef;
   
   }
   
   
 =pod  =pod
   
 =item * B<getResourceByUrl>(url,multiple):  =item * B<getResourceByUrl>(url,multiple):
Line 2689  resource appears multiple times in the c Line 3161  resource appears multiple times in the c
 will be returned (useful for maps), unless the multiple parameter has  will be returned (useful for maps), unless the multiple parameter has
 been included, in which case all instances are returned in an array.  been included, in which case all instances are returned in an array.
   
 =item * B<retrieveResources>(map, filterFunc, recursive, bailout, showall):  =item * B<retrieveResources>(map, filterFunc, recursive, bailout, showall, noblockcheck):
   
 The map is a specification of a map to retreive the resources from,  The map is a specification of a map to retreive the resources from,
 either as a url or as an object. The filterFunc is a reference to a  either as a url or as an object. The filterFunc is a reference to a
Line 2698  true if the resource should be included, Line 3170  true if the resource should be included,
 be. If recursive is true, the map will be recursively examined,  be. If recursive is true, the map will be recursively examined,
 otherwise it will not be. If bailout is true, the function will return  otherwise it will not be. If bailout is true, the function will return
 as soon as it finds a resource, if false it will finish. If showall is  as soon as it finds a resource, if false it will finish. If showall is
 true it will not hide maps that contain nothing but one other map. By  true it will not hide maps that contain nothing but one other map. The 
 default, the map is the top-level map of the course, filterFunc is a  noblockcheck arg is propagated to become the sixth arg in the call to
 function that always returns 1, recursive is true, bailout is false,  lonnet::allowed when checking a resource's availability during collection
 showall is false. The resources will be returned in a list containing  of resources using the iterator. noblockcheck needs to be true if 
 the resource objects for the corresponding resources, with B<no  retrieveResources() was called by a routine that itself was called by 
 structure information> in the list; regardless of branching,  lonnet::allowed, in order to avoid recursion.  By default the map  
 recursion, etc., it will be a flat list.  is the top-level map of the course, filterFunc is a function that 
   always returns 1, recursive is true, bailout is false, showall is
   false. The resources will be returned in a list containing the
   resource objects for the corresponding resources, with B<no structure 
   information> in the list; regardless of branching, recursion, etc.,
   it will be a flat list.
   
 Thus, this is suitable for cases where you don't want the structure,  Thus, this is suitable for cases where you don't want the structure,
 just a list of all resources. It is also suitable for finding out how  just a list of all resources. It is also suitable for finding out how
Line 2771  sub retrieveResources { Line 3248  sub retrieveResources {
     my $bailout = shift;      my $bailout = shift;
     if (!defined($bailout)) { $bailout = 0; }      if (!defined($bailout)) { $bailout = 0; }
     my $showall = shift;      my $showall = shift;
       my $noblockcheck = shift;
     # Create the necessary iterator.      # Create the necessary iterator.
     if (!ref($map)) { # assume it's a url of a map.      if (!ref($map)) { # assume it's a url of a map.
         $map = $self->getResourceByUrl($map);          $map = $self->getResourceByUrl($map);
Line 2800  sub retrieveResources { Line 3278  sub retrieveResources {
     # Run down the iterator and collect the resources.      # Run down the iterator and collect the resources.
     my $curRes;      my $curRes;
   
     while ($curRes = $it->next()) {      while ($curRes = $it->next(undef,$noblockcheck)) {
         if (ref($curRes)) {          if (ref($curRes)) {
             if (!&$filterFunc($curRes)) {              if (!&$filterFunc($curRes)) {
                 next;                  next;
Line 2951  Note that inside of the loop, it's frequ Line 3429  Note that inside of the loop, it's frequ
 resource objects will be references, and any non-references will   resource objects will be references, and any non-references will 
 be the tokens described above.  be the tokens described above.
   
 Also note there is some old code floating around that trys to track  The next() routine can take two (optional) arguments:
   closeAllPages - if true will not recurse down a .page
   noblockcheck - passed to browsePriv() for passing as sixth arg to
   call to lonnet::allowed. This needs to be set if retrieveResources
   was already called from another routine called within lonnet::allowed, 
   so as to prevent recursion.
   
   Also note there is some old code floating around that tries to track
 the depth of the iterator to see when it's done; do not copy that   the depth of the iterator to see when it's done; do not copy that 
 code. It is difficult to get right and harder to understand than  code. It is difficult to get right and harder to understand than
 this. They should be migrated to this new style.  this. They should be migrated to this new style.
Line 3098  sub new { Line 3583  sub new {
     if ($resourceCount == 1 && $resource->is_sequence() && !$self->{FORCE_TOP}) {       if ($resourceCount == 1 && $resource->is_sequence() && !$self->{FORCE_TOP}) { 
         my $firstResource = $resource->map_start();          my $firstResource = $resource->map_start();
         my $finishResource = $resource->map_finish();          my $finishResource = $resource->map_finish();
  my $result;   return Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,
  my $rdump  = Data::Dumper->new([$result]);   $finishResource, $self->{FILTER},
  $result =  Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource,   $self->{ALREADY_SEEN}, 
      $finishResource, $self->{FILTER},   $self->{CONDITION},
      $self->{ALREADY_SEEN},    $self->{FORCE_TOP});
      $self->{CONDITION},  
      $self->{FORCE_TOP});  
  return $result;  
              
           
     }      }
   
     # Set up some bookkeeping information.      # Set up some bookkeeping information.
Line 3126  sub new { Line 3606  sub new {
     $self->{ALREADY_SEEN}->{$self->{FIRST_RESOURCE}->{ID}} = 1;      $self->{ALREADY_SEEN}->{$self->{FIRST_RESOURCE}->{ID}} = 1;
   
     bless ($self);      bless ($self);
     my $selfDump = Data::Dumper->new([$self]);  
   
     return $self;      return $self;
 }  }
   
 sub next {  sub next {
     my $self = shift;      my $self = shift;
     my $closeAllPages=shift;      my $closeAllPages=shift;
       my $noblockcheck = shift;
     if ($self->{FINISHED}) {      if ($self->{FINISHED}) {
  return END_ITERATOR();   return END_ITERATOR();
     }      }
Line 3143  sub next { Line 3622  sub next {
     if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0}) {      if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0}) {
         $self->{HAVE_RETURNED_0} = 1;          $self->{HAVE_RETURNED_0} = 1;
  my $nextTopLevel = $self->{NAV_MAP}->getById('0.0');   my $nextTopLevel = $self->{NAV_MAP}->getById('0.0');
   
         return $self->{NAV_MAP}->getById('0.0');          return $self->{NAV_MAP}->getById('0.0');
     }      }
     if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0_BEGIN_MAP}) {      if ($self->{RETURN_0} && !$self->{HAVE_RETURNED_0_BEGIN_MAP}) {
Line 3169  sub next { Line 3647  sub next {
     if (defined($self->{FORCE_NEXT})) {      if (defined($self->{FORCE_NEXT})) {
         my $tmp = $self->{FORCE_NEXT};          my $tmp = $self->{FORCE_NEXT};
         $self->{FORCE_NEXT} = undef;          $self->{FORCE_NEXT} = undef;
   
         return $tmp;          return $tmp;
     }      }
   
Line 3285  sub next { Line 3762  sub next {
     # If this is a blank resource, don't actually return it.      # If this is a blank resource, don't actually return it.
     # Should you ever find you need it, make sure to add an option to the code      # Should you ever find you need it, make sure to add an option to the code
     #  that you can use; other things depend on this behavior.      #  that you can use; other things depend on this behavior.
     my $browsePriv = $self->{HERE}->browsePriv();      my $browsePriv = $self->{HERE}->browsePriv($noblockcheck);
     if (!$self->{HERE}->src() ||       if (!$self->{HERE}->src() || 
         (!($browsePriv eq 'F') && !($browsePriv eq '2')) ) {          (!($browsePriv eq 'F') && !($browsePriv eq '2')) ) {
         return $self->next($closeAllPages);          return $self->next($closeAllPages);
     }      }
   
     my $hereResource = $self->{HERE};  
   
     return $self->{HERE};      return $self->{HERE};
   
 }  }
Line 3459  sub next { Line 3934  sub next {
     my $nextUnfiltered;      my $nextUnfiltered;
     if ($self->{DIRECTION} == FORWARD()) {      if ($self->{DIRECTION} == FORWARD()) {
         $nextUnfiltered = $self->{HERE}->getNext();          $nextUnfiltered = $self->{HERE}->getNext();
   
     } else {      } else {
         $nextUnfiltered = $self->{HERE}->getPrevious();          $nextUnfiltered = $self->{HERE}->getPrevious();
     }      }
Line 3620  sub new { Line 4094  sub new {
     # about this resource in. Not used by the resource object      # about this resource in. Not used by the resource object
     # directly.      # directly.
     $self->{DATA} = {};      $self->{DATA} = {};
          
     bless($self);      bless($self);
           
       # This is a speed optimization, to avoid calling symb() too often.
       $self->{SYMB} = $self->symb();
   
     return $self;      return $self;
 }  }
   
Line 3734  sub src { Line 4211  sub src {
 }  }
 sub shown_symb {  sub shown_symb {
     my $self=shift;      my $self=shift;
     if ($self->encrypted()) {return &Apache::lonenc::encrypted($self->symb());}      if ($self->encrypted()) {return &Apache::lonenc::encrypted($self->{SYMB});}
     return $self->symb();      return $self->{SYMB};
 }  }
 sub id {  sub id {
     my $self=shift;      my $self=shift;
Line 3748  sub enclosing_map_src { Line 4225  sub enclosing_map_src {
 }  }
 sub symb {  sub symb {
     my $self=shift;      my $self=shift;
       if (defined $self->{SYMB}) { return $self->{SYMB}; }
     (my $first, my $second) = $self->{ID} =~ /(\d+).(\d+)/;      (my $first, my $second) = $self->{ID} =~ /(\d+).(\d+)/;
     my $symbSrc = &Apache::lonnet::declutter($self->src());      my $symbSrc = &Apache::lonnet::declutter($self->src());
     my $symb = &Apache::lonnet::declutter($self->navHash('map_id_'.$first))       my $symb = &Apache::lonnet::declutter($self->navHash('map_id_'.$first)) 
Line 3756  sub symb { Line 4234  sub symb {
 }  }
 sub wrap_symb {  sub wrap_symb {
     my $self = shift;      my $self = shift;
     return $self->{NAV_MAP}->wrap_symb($self->symb());      return $self->{NAV_MAP}->wrap_symb($self->{SYMB});
 }  }
 sub title {   sub title { 
     my $self=shift;       my $self=shift; 
Line 3979  sub parmval { Line 4457  sub parmval {
     if (!defined($part)) {       if (!defined($part)) { 
         $part = '0';           $part = '0'; 
     }      }
     return $self->{NAV_MAP}->parmval($part.'.'.$what, $self->symb());      return $self->{NAV_MAP}->parmval($part.'.'.$what, $self->{SYMB});
 }  }
   
 =pod  =pod
Line 4012  resource of the map. Line 4490  resource of the map.
   
 Returns a string with the type of the map in it.  Returns a string with the type of the map in it.
   
 =item *B<map_hierarchy>:  =item * B<map_hierarchy>:
   
 Returns a string with a comma-separated ordered list of map_pc IDs  Returns a string with a comma-separated ordered list of map_pc IDs
 for the hierarchy of maps containing a map, with the top level  for the hierarchy of maps containing a map, with the top level
Line 4083  their code.) Line 4561  their code.)
   
 =over 4  =over 4
   
   
 =item * B<printable>  =item * B<printable>
   
 returns true if the current date is such that the   returns true if the current date is such that the 
 specified resource part is printable.  specified resource part is printable.
   
   
 =item * B<resprintable>  =item * B<resprintable>
   
 Returns true if all parts in the resource are printable making the  Returns true if all parts in the resource are printable making the
Line 4146  Get the weight for the problem. Line 4626  Get the weight for the problem.
   
 =cut  =cut
   
 sub printable {  
   
     my ($self, $part) = @_;  
   
     # Get the print open/close dates for the resource.  
   
     my $start = $self->parmval("prinstartdate", $part);  sub printable {
     my $end   = $self->parmval("printenddate", $part);  
       my ($self, $part) = @_;
   
     #  The following cases apply:      #  The following cases apply:
     #  - No dates set: Printable.      #  - If a start date is not set, it is replaced by the open date.
       #  - Ditto for start/open replaced by content open.
       #  - If neither start nor printdates are set the part is printable.
     #  - Start date set but no end date: Printable if now >= start date.      #  - Start date set but no end date: Printable if now >= start date.
     #  - End date set but no start date: Printable if now <= end date.      #  - End date set but no start date: Printable if now <= end date.
     #  - both defined: printable if start <= now <= end      #  - both defined: printable if start <= now <= end
     #      #
   
       # Get the print open/close dates for the resource.
   
       my $start = $self->parmval("printstartdate", $part);
       my $end   = $self->parmval("printenddate", $part);
   
       if (!$start) {
    $start = $self->parmval("opendate", $part);
       }
       if (!$start) {
    $start = $self->parmval("contentopen", $part);
       }
   
   
     my $now  = time();      my $now  = time();
   
   
     my $startok = 1;      my $startok = 1;
     my $endok   = 1;      my $endok   = 1;
   
Line 4183  sub resprintable { Line 4678  sub resprintable {
     my $partsref = $self->parts();      my $partsref = $self->parts();
     my @parts    = @$partsref;      my @parts    = @$partsref;
   
     if ((!defined(@parts)) || (scalar(@parts) == 0)) {      if (!@parts) {
  return $self->printable(0);   return $self->printable(0);
     } else {      } else {
  foreach my $part  (@parts) {   foreach my $part  (@parts) {
Line 4215  sub awarded { Line 4710  sub awarded {
     my $self = shift; my $part = shift;      my $self = shift; my $part = shift;
     $self->{NAV_MAP}->get_user_data();      $self->{NAV_MAP}->get_user_data();
     if (!defined($part)) { $part = '0'; }      if (!defined($part)) { $part = '0'; }
     return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.awarded'};      return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.awarded'};
 }  }
 sub taskversion {  sub taskversion {
     my $self = shift; my $part = shift;      my $self = shift; my $part = shift;
     $self->{NAV_MAP}->get_user_data();      $self->{NAV_MAP}->get_user_data();
     if (!defined($part)) { $part = '0'; }      if (!defined($part)) { $part = '0'; }
     return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.version'};      return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.version'};
 }  }
 sub taskstatus {  sub taskstatus {
     my $self = shift; my $part = shift;      my $self = shift; my $part = shift;
     $self->{NAV_MAP}->get_user_data();      $self->{NAV_MAP}->get_user_data();
     if (!defined($part)) { $part = '0'; }      if (!defined($part)) { $part = '0'; }
     return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$self->taskversion($part).'.'.$part.'.status'};      return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$self->taskversion($part).'.'.$part.'.status'};
 }  }
 sub solved {  sub solved {
     my $self = shift; my $part = shift;      my $self = shift; my $part = shift;
     $self->{NAV_MAP}->get_user_data();      $self->{NAV_MAP}->get_user_data();
     if (!defined($part)) { $part = '0'; }      if (!defined($part)) { $part = '0'; }
     return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.solved'};      return $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.solved'};
 }  }
 sub checkedin {  sub checkedin {
     my $self = shift; my $part = shift;      my $self = shift; my $part = shift;
Line 4241  sub checkedin { Line 4736  sub checkedin {
     if (!defined($part)) { $part = '0'; }      if (!defined($part)) { $part = '0'; }
     if ($self->is_task()) {      if ($self->is_task()) {
         my $version = $self->taskversion($part);          my $version = $self->taskversion($part);
         return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$version .'.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$version .'.'.$part.'.checkedin.slot'});          return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$version .'.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$version .'.'.$part.'.checkedin.slot'});
     } else {      } else {
         return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->symb()}->{'resource.'.$part.'.checkedin.slot'});          return ($self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.checkedin'},$self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}}->{'resource.'.$part.'.checkedin.slot'});
     }      }
 }  }
 # this should work exactly like the copy in lonhomework.pm  # this should work exactly like the copy in lonhomework.pm
Line 4260  sub duedate { Line 4755  sub duedate {
     my $date;      my $date;
     my @interval=$self->parmval("interval", $part);      my @interval=$self->parmval("interval", $part);
     my $due_date=$self->parmval("duedate", $part);      my $due_date=$self->parmval("duedate", $part);
     if ($interval[0] =~ /\d+/) {      if ($interval[0] =~ /^(\d+)/) {
        my $first_access=&Apache::lonnet::get_first_access($interval[1],          my $timelimit = $1;
                                                           $self->symb);          my $first_access=&Apache::lonnet::get_first_access($interval[1],
                                                              $self->{SYMB});
  if (defined($first_access)) {   if (defined($first_access)) {
            my $interval = $first_access+$interval[0];              my $interval = $first_access+$timelimit;
     $date = (!$due_date || $interval < $due_date) ? $interval       $date = (!$due_date || $interval < $due_date) ? $interval 
                                                           : $due_date;                                                            : $due_date;
  } else {   } else {
Line 4335  sub weight { Line 4831  sub weight {
     my $self = shift; my $part = shift;      my $self = shift; my $part = shift;
     if (!defined($part)) { $part = '0'; }      if (!defined($part)) { $part = '0'; }
     my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',      my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
                                 $self->symb(), $self->{DOMAIN},                                  $self->{SYMB}, $self->{DOMAIN},
                                 $self->{USERNAME},                                  $self->{USERNAME},
                                 $env{'request.course.sec'});                                  $env{'request.course.sec'});
     return $weight;      return $weight;
Line 4344  sub part_display { Line 4840  sub part_display {
     my $self= shift(); my $partID = shift();      my $self= shift(); my $partID = shift();
     if (! defined($partID)) { $partID = '0'; }      if (! defined($partID)) { $partID = '0'; }
     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',      my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',
                                      $self->symb);                                       $self->{SYMB});
     if (! defined($display) || $display eq '') {      if (! defined($display) || $display eq '') {
         $display = $partID;          $display = $partID;
     }      }
Line 4364  sub getReturnHash { Line 4860  sub getReturnHash {
     my $self = shift;      my $self = shift;
           
     if (!defined($self->{RETURN_HASH})) {      if (!defined($self->{RETURN_HASH})) {
         my %tmpHash  = &Apache::lonnet::restore($self->symb(),undef,$self->{DOMAIN},$self->{USERNAME});          #my %tmpHash  = &Apache::lonnet::restore($self->{SYMB},undef,$self->{DOMAIN},$self->{USERNAME});
         $self->{RETURN_HASH} = \%tmpHash;          #$self->{RETURN_HASH} = \%tmpHash;
           # When info is retrieved for several resources (as when rendering a directory),
           # it is much faster to use the user profile dump and avoid repeated lonnet requests
           # (especially since lonnet::currentdump is using Lond directly whenever possible,
           # and lonnet::restore is not at this point).
           $self->{NAV_MAP}->get_user_data();
           $self->{RETURN_HASH} = $self->{NAV_MAP}->{STUDENT_DATA}->{$self->{SYMB}};
     }      }
 }         }       
   
Line 4429  and use the link as appropriate. Line 4931  and use the link as appropriate.
   
 sub hasDiscussion {  sub hasDiscussion {
     my $self = shift;      my $self = shift;
     return $self->{NAV_MAP}->hasDiscussion($self->symb());      return $self->{NAV_MAP}->hasDiscussion($self->{SYMB});
 }  }
   
 sub last_post_time {  sub last_post_time {
     my $self = shift;      my $self = shift;
     return $self->{NAV_MAP}->last_post_time($self->symb());      return $self->{NAV_MAP}->last_post_time($self->{SYMB});
 }  }
   
 sub discussion_info {  sub discussion_info {
     my ($self,$filter) = @_;      my ($self,$filter) = @_;
     return $self->{NAV_MAP}->discussion_info($self->symb(),$filter);      return $self->{NAV_MAP}->discussion_info($self->{SYMB},$filter);
 }  }
   
 sub getFeedback {  sub getFeedback {
     my $self = shift;      my $self = shift;
     my $source = $self->src();      my $source = $self->src();
     my $symb = $self->symb();      my $symb = $self->{SYMB};
     if ($source =~ /^\/res\//) { $source = substr $source, 5; }      if ($source =~ /^\/res\//) { $source = substr $source, 5; }
     return $self->{NAV_MAP}->getFeedback($symb,$source);      return $self->{NAV_MAP}->getFeedback($symb,$source);
 }  }
Line 4453  sub getFeedback { Line 4955  sub getFeedback {
 sub getErrors {  sub getErrors {
     my $self = shift;      my $self = shift;
     my $source = $self->src();      my $source = $self->src();
     my $symb = $self->symb();      my $symb = $self->{SYMB};
     if ($source =~ /^\/res\//) { $source = substr $source, 5; }      if ($source =~ /^\/res\//) { $source = substr $source, 5; }
     return $self->{NAV_MAP}->getErrors($symb,$source);      return $self->{NAV_MAP}->getErrors($symb,$source);
 }  }
Line 4603  sub extractParts { Line 5105  sub extractParts {
  if ($partorder) {   if ($partorder) {
     my @parts;      my @parts;
     for my $part (split (/,/,$partorder)) {      for my $part (split (/,/,$partorder)) {
  if (!Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {   if (!Apache::loncommon::check_if_partid_hidden($part, $self->{SYMB})) {
     push @parts, $part;      push @parts, $part;
     $parts{$part} = 1;      $parts{$part} = 1;
  }   }
Line 4621  sub extractParts { Line 5123  sub extractParts {
     my $part = $1;      my $part = $1;
     # This floods the logs if it blows up      # This floods the logs if it blows up
     if (defined($parts{$part})) {      if (defined($parts{$part})) {
  &Apache::lonnet::logthis("$part multiply defined in metadata for " . $self->symb());   &Apache::lonnet::logthis("$part multiply defined in metadata for " . $self->{SYMB});
     }      }
           
     # check to see if part is turned off.      # check to see if part is turned off.
           
     if (!Apache::loncommon::check_if_partid_hidden($part, $self->symb())) {      if (!Apache::loncommon::check_if_partid_hidden($part, $self->{SYMB})) {
  $parts{$part} = 1;   $parts{$part} = 1;
     }      }
  }   }
     }      }
     my @sortedParts = sort keys %parts;      my @sortedParts = sort(keys(%parts));
     $self->{PARTS} = \@sortedParts;      $self->{PARTS} = \@sortedParts;
         }          }
                   
Line 4652  sub extractParts { Line 5154  sub extractParts {
         # So we have to use our knowlege of part names to figure out           # So we have to use our knowlege of part names to figure out 
         # where the part names begin and end, and even then, it is possible          # where the part names begin and end, and even then, it is possible
         # to construct ambiguous situations.          # to construct ambiguous situations.
         foreach my $data (split /,/, $metadata) {          foreach my $data (split(/,/, $metadata)) {
             if ($data =~ /^([a-zA-Z]+)response_(.*)/              if ($data =~ /^([a-zA-Z]+)response_(.*)/
  || $data =~ /^(Task)_(.*)/) {   || $data =~ /^(Task)_(.*)/) {
                 my $responseType = $1;                  my $responseType = $1;
                 my $partStuff = $2;                  my $partStuff = $2;
                 my $partIdSoFar = '';                  my $partIdSoFar = '';
                 my @partChunks = split /_/, $partStuff;                  my @partChunks = split(/_/, $partStuff);
                 my $i = 0;                  my $i = 0;
                 for ($i = 0; $i < scalar(@partChunks); $i++) {                  for ($i = 0; $i < scalar(@partChunks); $i++) {
                     if ($partIdSoFar) { $partIdSoFar .= '_'; }                      if ($partIdSoFar) { $partIdSoFar .= '_'; }
Line 5131  sub status { Line 5633  sub status {
 sub check_for_slot {  sub check_for_slot {
     my $self = shift;      my $self = shift;
     my $part = shift;      my $part = shift;
     my $symb = $self->symb();      my $symb = $self->{SYMB};
     my ($use_slots,$available,$availablestudent) = $self->slot_control($part);      my ($use_slots,$available,$availablestudent) = $self->slot_control($part);
     if (($use_slots ne '') && ($use_slots !~ /^\s*no\s*$/i)) {      if (($use_slots ne '') && ($use_slots !~ /^\s*no\s*$/i)) {
         my @slots = (split(/:/,$availablestudent),split(/:/,$available));          my @slots = (split(/:/,$availablestudent),split(/:/,$available));
Line 5140  sub check_for_slot { Line 5642  sub check_for_slot {
         my $cnum=$env{'course.'.$cid.'.num'};          my $cnum=$env{'course.'.$cid.'.num'};
         my $now = time;          my $now = time;
         my $num_usable_slots = 0;          my $num_usable_slots = 0;
           my ($checkedin,$checkedinslot,%consumed_uniq,%slots);
         if (@slots > 0) {          if (@slots > 0) {
             my %slots=&Apache::lonnet::get('slots',[@slots],$cdom,$cnum);              %slots=&Apache::lonnet::get('slots',[@slots],$cdom,$cnum);
             if (&Apache::lonnet::error(%slots)) {              if (&Apache::lonnet::error(%slots)) {
                 return (UNKNOWN);                  return (UNKNOWN);
             }              }
             my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');              my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');
             my ($checkedin,$checkedinslot);  
             foreach my $slot_name (@sorted_slots) {              foreach my $slot_name (@sorted_slots) {
                 next if (!defined($slots{$slot_name}) || !ref($slots{$slot_name}));                  next if (!defined($slots{$slot_name}) || !ref($slots{$slot_name}));
                 my $end = $slots{$slot_name}->{'endtime'};                  my $end = $slots{$slot_name}->{'endtime'};
Line 5159  sub check_for_slot { Line 5661  sub check_for_slot {
                         } else {                          } else {
                             if ($ip ne '') {                              if ($ip ne '') {
                                 if (!&Apache::loncommon::check_ip_acc($ip)) {                                  if (!&Apache::loncommon::check_ip_acc($ip)) {
                                     return (RESERVED_LOCATION,$ip,$slot_name);                                      return (RESERVED_LOCATION,$end,$slot_name);
                                 }                                  }
                             }                              }
                             my @proctors;                              my @proctors;
Line 5180  sub check_for_slot { Line 5682  sub check_for_slot {
                     $num_usable_slots ++;                      $num_usable_slots ++;
                 }                  }
             }              }
             my ($is_correct,$got_grade);              my ($is_correct,$wait_for_grade);
             if ($self->is_task()) {              if ($self->is_task()) {
                 my $taskstatus = $self->taskstatus();                  my $taskstatus = $self->taskstatus();
                 $is_correct = (($taskstatus eq 'pass') ||                   $is_correct = (($taskstatus eq 'pass') || 
                                ($self->solved() =~ /^correct_/));                                 ($self->solved() =~ /^correct_/));
                 $got_grade = ($taskstatus =~ /^(?:pass|fail)$/);                  unless ($taskstatus =~ /^(?:pass|fail)$/) {
                       $wait_for_grade = 1;
                   }
             } else {              } else {
                 $got_grade = 1;                  unless ($self->completable()) {
                 $is_correct = ($self->solved() =~ /^correct_/);                         $wait_for_grade = 1;
                   }
                   unless (($self->problemstatus($part) eq 'no') ||
                           ($self->problemstatus($part) eq 'no_feedback_ever')) {
                       $is_correct = ($self->solved($part) =~ /^correct_/);
                       $wait_for_grade = 0;
                   }
             }              }
             ($checkedin,$checkedinslot) = $self->checkedin();              ($checkedin,$checkedinslot) = $self->checkedin();
             if ($checkedin) {              if ($checkedin) {
                 if (!$got_grade) {                  if (ref($slots{$checkedinslot}) eq 'HASH') {
                       $consumed_uniq{$checkedinslot} = $slots{$checkedinslot}{'uniqueperiod'};
                   }
                   if ($wait_for_grade) {
                     return (WAITING_FOR_GRADE);                      return (WAITING_FOR_GRADE);
                 } elsif ($is_correct) {                  } elsif ($is_correct) {
                     return (CORRECT);                       return (CORRECT); 
Line 5205  sub check_for_slot { Line 5718  sub check_for_slot {
         my $reservable = &Apache::lonnet::get_reservable_slots($cnum,$cdom,$env{'user.name'},          my $reservable = &Apache::lonnet::get_reservable_slots($cnum,$cdom,$env{'user.name'},
                                                                $env{'user.domain'});                                                                 $env{'user.domain'});
         if (ref($reservable) eq 'HASH') {          if (ref($reservable) eq 'HASH') {
               my ($map) = &Apache::lonnet::decode_symb($symb);
             if ((ref($reservable->{'now_order'}) eq 'ARRAY') && (ref($reservable->{'now'}) eq 'HASH')) {              if ((ref($reservable->{'now_order'}) eq 'ARRAY') && (ref($reservable->{'now'}) eq 'HASH')) {
                 foreach my $slot (reverse (@{$reservable->{'now_order'}})) {                  foreach my $slot (reverse (@{$reservable->{'now_order'}})) {
                     if (($reservable->{'now'}{$slot}{'symb'} eq '') ||                      my $canuse;
                         ($reservable->{'now'}{$slot}{'symb'} eq $symb)) {                      if ($reservable->{'now'}{$slot}{'symb'} eq '') {
                           $canuse = 1;
                       } else {
                           my %oksymbs;
                           my @slotsymbs = split(/\s*,\s*/,$reservable->{'now'}{$slot}{'symb'});
                           map { $oksymbs{$_} = 1; } @slotsymbs;
                           if ($oksymbs{$symb}) {
                               $canuse = 1;
                           } else {
                               foreach my $item (@slotsymbs) {
                                   if ($item =~ /\.(page|sequence)$/) {
                                       (undef,undef, my $sloturl) = &Apache::lonnet::decode_symb($item);
                                       if (($map ne '') && ($map eq $sloturl)) {
                                           $canuse = 1;
                                           last;
                                       }
                                   }
                               }
                           }
                       }
                       if ($canuse) {
                           if ($checkedin) {
                               if (ref($consumed_uniq{$checkedinslot}) eq 'ARRAY') {
                                   my ($uniqstart,$uniqend)=@{$consumed_uniq{$checkedinslot}};
                                   if ($reservable->{'now'}{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
                                       my ($new_uniq_start,$new_uniq_end) = ($1,$2);
                                       next if (!
                                           ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
                                           ($uniqstart > $new_uniq_end   &&  $uniqend > $new_uniq_end  ));
                                   }
                               }
                           }
                         return(RESERVABLE,$reservable->{'now'}{$slot}{'endreserve'});                          return(RESERVABLE,$reservable->{'now'}{$slot}{'endreserve'});
                     }                      }
                 }                  }
             }              }
             if ((ref($reservable->{'future_order'}) eq 'ARRAY') && (ref($reservable->{'future'}) eq 'HASH')) {              if ((ref($reservable->{'future_order'}) eq 'ARRAY') && (ref($reservable->{'future'}) eq 'HASH')) {
                 foreach my $slot (@{$reservable->{'future_order'}}) {                  foreach my $slot (@{$reservable->{'future_order'}}) {
                     if (($reservable->{'future'}{$slot}{'symb'} eq '') ||                      my $canuse;
                         ($reservable->{'future'}{$slot}{'symb'} eq $symb)) {                      if ($reservable->{'future'}{$slot}{'symb'} eq '') {
                           $canuse = 1;
                       } elsif ($reservable->{'future'}{$slot}{'symb'} =~ /,/) {
                           my %oksymbs;
                           my @slotsymbs = split(/\s*,\s*/,$reservable->{'future'}{$slot}{'symb'});
                           map { $oksymbs{$_} = 1; } @slotsymbs;
                           if ($oksymbs{$symb}) {
                               $canuse = 1;
                           } else {
                               foreach my $item (@slotsymbs) {
                                   if ($item =~ /\.(page|sequence)$/) {
                                       (undef,undef, my $sloturl) = &Apache::lonnet::decode_symb($item);
                                       if (($map ne '') && ($map eq $sloturl)) {
                                           $canuse = 1;
                                           last;
                                       }
                                   }
                               }
                           }
                       } elsif ($reservable->{'future'}{$slot}{'symb'} eq $symb) {
                           $canuse = 1;
                       }
                       if ($canuse) {
                           if ($checkedin) {
                               if (ref($consumed_uniq{$checkedinslot}) eq 'ARRAY') {
                                   my ($uniqstart,$uniqend)=@{$consumed_uniq{$checkedinslot}};
                                   if ($reservable->{'future'}{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
                                       my ($new_uniq_start,$new_uniq_end) = ($1,$2);
                                       next if (!
                                           ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
                                           ($uniqstart > $new_uniq_end   &&  $uniqend > $new_uniq_end  ));
                                   }
                               }
                           }
                         return(RESERVABLE_LATER,$reservable->{'future'}{$slot}{'startreserve'});                          return(RESERVABLE_LATER,$reservable->{'future'}{$slot}{'startreserve'});
                     }                      }
                 }                  }
Line 5367  sub completable { Line 5945  sub completable {
   
 =pod  =pod
   
   B<Answerable>
   
   The answerable method differs from the completable method in its handling of problem parts
   for which feedback on correctness is suppressed, but the student still has tries left, and
   the problem part is not past due, (i.e., the student could submit a different answer if
   he/she so chose). For that case completable will return 0, whereas answerable will return 1.
   
   =cut
   
   sub answerable {
       my $self = shift;
       if (!$self->is_problem()) { return 0; }
       my $partCount = $self->countParts();
       foreach my $part (@{$self->parts()}) {
           if ($part eq '0' && $partCount != 1) { next; }
           my $status = $self->status($part);
           if ($self->getCompletionStatus($part) == ATTEMPTED() ||
               $self->getCompletionStatus($part) == CREDIT_ATTEMPTED() ||
               $status == ANSWER_SUBMITTED() ) {
               if ($self->tries($part) < $self->maxtries($part) || !$self->maxtries($part)) {
                   return 1;
               }
           }
           if ($status == OPEN() || $status == TRIES_LEFT() || $status == NETWORK_FAILURE()) {
               return 1;
           }
       }
       # None of the parts were answerable, so neither is this problem.
       return 0;
   }
   
   =pod
   
 =head2 Resource/Nav Map Navigation  =head2 Resource/Nav Map Navigation
   
 =over 4  =over 4
Line 5402  sub getPrevious { Line 6013  sub getPrevious {
     my $self = shift;      my $self = shift;
     my @branches;      my @branches;
     my $from = $self->from();      my $from = $self->from();
     foreach my $branch ( split /,/, $from) {      foreach my $branch ( split(/,/, $from)) {
         my $choice = $self->{NAV_MAP}->getById($branch);          my $choice = $self->{NAV_MAP}->getById($branch);
         my $prev = $choice->comesfrom();          my $prev = $choice->comesfrom();
         $prev = $self->{NAV_MAP}->getById($prev);          $prev = $self->{NAV_MAP}->getById($prev);
Line 5414  sub getPrevious { Line 6025  sub getPrevious {
   
 sub browsePriv {  sub browsePriv {
     my $self = shift;      my $self = shift;
       my $noblockcheck = shift;
     if (defined($self->{BROWSE_PRIV})) {      if (defined($self->{BROWSE_PRIV})) {
         return $self->{BROWSE_PRIV};          return $self->{BROWSE_PRIV};
     }      }
   
     $self->{BROWSE_PRIV} = &Apache::lonnet::allowed('bre',$self->src(),      $self->{BROWSE_PRIV} = &Apache::lonnet::allowed('bre',$self->src(),
     $self->symb());      $self->{SYMB},undef,
                                                       undef,$noblockcheck);
 }  }
   
 =pod  =pod

Removed from v.1.481  
changed lines
  Added in v.1.528


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