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Diff for /loncom/interface/lonstatistics.pm between versions 1.115 and 1.144.2.1

version 1.115, 2005/02/25 02:37:49 version 1.144.2.1, 2009/12/11 00:12:21
Line 28 Line 28
 #  #
 ###  ###
   
 =pod  
   
 =head1 NAME  
   
 lonstatistics  
   
 =head1 SYNOPSIS  
   
 Main handler for statistics and chart.  
   
 =over 4  
   
 =cut  
   
 package Apache::lonstatistics;  package Apache::lonstatistics;
   
Line 49  use Apache::Constants qw(:common :http); Line 37  use Apache::Constants qw(:common :http);
 use vars qw(  use vars qw(
     @FullClasslist       @FullClasslist 
     @Students      @Students
     @Sections       @Sections
     @SelectedSections      @Groups 
     %StudentData      %StudentData
     @StudentDataOrder      @StudentDataOrder
     @SelectedStudentData      @SelectedStudentData
     $enrollment_status);      $enrollment_status);
   
 use Apache::lonnet();  use Apache::lonnet;
 use Apache::lonhomework;  use Apache::lonhomework;
 use Apache::loncommon;  use Apache::loncommon;
 use Apache::loncoursedata;  use Apache::loncoursedata;
 use Apache::lonhtmlcommon;  use Apache::lonhtmlcommon;
 use Apache::lonmysql;  use Apache::lonmysql;
 use Apache::lonlocal;  use Apache::lonlocal;
   use Apache::longroup;
 use Time::HiRes;  use Time::HiRes;
 #  #
 # Statistics Packages  # Statistics Packages
Line 74  use Apache::lonstudentassessment(); Line 63  use Apache::lonstudentassessment();
 use Apache::lonpercentage;  use Apache::lonpercentage;
 use Apache::lonstudentsubmissions();  use Apache::lonstudentsubmissions();
 use Apache::lonsurveyreports();  use Apache::lonsurveyreports();
   use Apache::longradinganalysis();
   use LONCAPA;
   
 #######################################################  
 #######################################################  
   
 =pod  
   
 =item Package Variables  
   
 =item @FullClasslist The full classlist  
   
 =item @Students The students we are concerned with for this invocation  
   
 =item @Sections The sections available in this class  
   
 =item $curr_student The student currently being examined  
   
 =item $prev_student The student previous in the classlist  
   
 =item $next_student The student next in the classlist  
   
 =over  
   
 =cut   
   
 #######################################################  
 #######################################################  
 #  #
 # Classlist variables  # Classlist variables
 #  #
Line 107  my $curr_student; Line 73  my $curr_student;
 my $prev_student;  my $prev_student;
 my $next_student;  my $next_student;
   
 #######################################################  
 #######################################################  
   
 =pod  
   
 =item &clear_classlist_variables()  
   
 undef the following package variables:  
   
 =over  
   
 =item @FullClasslist  
   
 =item @Students  
   
 =item @Sections  
   
 =item @SelectedSections  
   
 =item %StudentData  
   
 =item @StudentDataOrder  
   
 =item @SelectedStudentData  
   
 =item $curr_student  
   
 =item $prev_student  
   
 =item $next_student  
   
 =back  
   
 =cut  
   
 #######################################################  
 #######################################################  
 sub clear_classlist_variables {  sub clear_classlist_variables {
     undef(@FullClasslist);      undef(@FullClasslist);
     undef(@Students);      undef(@Students);
     undef(@Sections);      undef(@Sections);
     undef(@SelectedSections);      undef(@Groups);
     undef(%StudentData);      undef(%StudentData);
     undef(@SelectedStudentData);      undef(@SelectedStudentData);
     undef($curr_student);      undef($curr_student);
Line 156  sub clear_classlist_variables { Line 86  sub clear_classlist_variables {
     undef($next_student);      undef($next_student);
 }  }
   
 #######################################################  
 #######################################################  
   
 =pod  
   
 =item &PrepareClasslist()  
   
 Build up the classlist information.  The classlist information is kept in  
 the following package variables:  
   
 =over  
   
 =item @FullClasslist  
   
 =item @Students  
   
 =item @Sections  
   
 =item @SelectedSections  
   
 =item %StudentData  
   
 =item @SelectedStudentData  
   
 =item $curr_student  
   
 =item $prev_student  
   
 =item $next_student  
   
 =back  
   
 $curr_student, $prev_student, and $next_student may not be defined, depending  
 upon the calling context.  
   
 =cut  
   
 #######################################################  
 #######################################################  
 sub PrepareClasslist {  sub PrepareClasslist {
     my %Sections;      my %Sections;
     &clear_classlist_variables();      &clear_classlist_variables();
     #      #
     # Retrieve the classlist      # Retrieve the classlist
     my $cid  = $ENV{'request.course.id'};      my $cid  = $env{'request.course.id'};
     my $cdom = $ENV{'course.'.$cid.'.domain'};      my $cdom = $env{'course.'.$cid.'.domain'};
     my $cnum = $ENV{'course.'.$cid.'.num'};      my $cnum = $env{'course.'.$cid.'.num'};
     my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cid,      my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cdom,
                                                                   $cdom,$cnum);   $cnum);
     if (exists($ENV{'form.Section'})) {      my @selected_sections = &get_selected_sections();
         if (ref($ENV{'form.Section'})) {      my @selected_groups = &get_selected_groups();
             @SelectedSections = @{$ENV{'form.Section'}};  
         } elsif ($ENV{'form.Section'} !~ /^\s*$/) {  
             @SelectedSections = ($ENV{'form.Section'});  
         }  
     }  
     @SelectedSections = ('all') if (! @SelectedSections);  
     foreach (@SelectedSections) {  
         if ($_ eq 'all') {  
             @SelectedSections = ('all');  
         }  
     }  
     #      #
     # Deal with instructors with restricted section access      # Deal with instructors with restricted section access
     if ($ENV{'request.course.sec'} !~ /^\s*$/) {      if ($env{'request.course.sec'} !~ /^\s*$/) {
         @SelectedSections = ($ENV{'request.course.sec'});          @selected_sections = ($env{'request.course.sec'});
     }      }
     #      #
     # Set up %StudentData      # Set up %StudentData
     @StudentDataOrder = qw/fullname username domain id section status comments/;      @StudentDataOrder = qw/fullname username domain id section status groups comments/;
     foreach my $field (@StudentDataOrder) {      foreach my $field (@StudentDataOrder) {
         $StudentData{$field}->{'title'} = &mt($field);          $StudentData{$field}->{'title'} = &mt($field);
         $StudentData{$field}->{'base_width'} = length(&mt($field));          $StudentData{$field}->{'base_width'} = length(&mt($field));
Line 235  sub PrepareClasslist { Line 116  sub PrepareClasslist {
     #      #
     # get the status requested      # get the status requested
     $enrollment_status = 'Active';      $enrollment_status = 'Active';
     $enrollment_status = $ENV{'form.Status'} if (exists($ENV{'form.Status'}));      $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'}));
     #      #
       # Get groupmembership
       my ($classgroups,$studentgroups);
       my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
       if (%curr_groups) {
           ($classgroups,$studentgroups) = 
       &Apache::loncoursedata::get_group_memberships($classlist,
                                                             $field_names,
     $cdom,$cnum);
       }
       my $now = time;
   
     # Process the classlist      # Process the classlist
     while (my ($student,$student_data) = each (%$classlist)) {      while (my ($student,$student_data) = each (%$classlist)) {
         my $studenthash = ();          my $studenthash = ();
Line 251  sub PrepareClasslist { Line 143  sub PrepareClasslist {
                 $StudentData{$field}->{'width'} = $length;                   $StudentData{$field}->{'width'} = $length; 
             }              }
         }          }
           my @studentsgroups = &Apache::loncoursedata::get_students_groups
                                                      ($student,$enrollment_status,
                                                       $classgroups);
           if (@studentsgroups) {
               $studenthash->{'groups'} = join(', ',@studentsgroups);
               $studenthash->{'groupref'} = \@studentsgroups;
           } else {
               $studenthash->{'groups'} = 'none';
               $studenthash->{'groupref'} = []; 
           }
         push (@FullClasslist,$studenthash);          push (@FullClasslist,$studenthash);
         #          #
         # Build up a list of sections          # Build up a list of sections
Line 262  sub PrepareClasslist { Line 164  sub PrepareClasslist {
         $Sections{$section}++;          $Sections{$section}++;
         #          #
         # Only put in the list those students we are interested in          # Only put in the list those students we are interested in
         foreach my $sect (@SelectedSections) {          foreach my $sect (@selected_sections) {
             if ( (($sect eq 'all') ||               if ( (($sect eq 'all') || 
                   ($section eq $sect)) &&                    ($section eq $sect)) &&
                  (($studenthash->{'status'} eq $enrollment_status) ||                    (($studenthash->{'status'} eq $enrollment_status) || 
                   ($enrollment_status eq 'Any'))                     ($enrollment_status eq 'Any')) 
                  ){                   ){
                 push (@Students,$studenthash);                  my $groupcheck = 0;
                 last;                  if (grep(/^all$/,@selected_groups)) {
                       push(@Students,$studenthash);
                       last;
                   } elsif (grep(/^none$/,@selected_groups)) {
                       if ($studenthash->{'groups'} eq 'none') {
                           push(@Students,$studenthash);
                           last;
                       }     
                   } else {
                       foreach my $group (@selected_groups) {
                           if (grep(/^$group$/,@studentsgroups)) {
                               push(@Students,$studenthash);
                               $groupcheck = 1;
                               last;
                           }
                       }
                       if ($groupcheck) {
                           last;
                       }
                   }
             }              }
         }          }
     }      }
     #      #
     # Put the consolidated section data in the right place      # Put the consolidated section data in the right place
     if ($ENV{'request.course.sec'} !~ /^\s*$/) {      if ($env{'request.course.sec'} !~ /^\s*$/) {
         @Sections = ($ENV{'request.course.sec'});          @Sections = ($env{'request.course.sec'});
     } else {      } else {
         @Sections = sort {$a cmp $b} keys(%Sections);          @Sections = sort {
       if ($a == $a && $b == $b ) { return $a <=> $b; }
       return $a cmp $b;
    } keys(%Sections);
   
         unshift(@Sections,'all'); # Put 'all' at the front of the list          unshift(@Sections,'all'); # Put 'all' at the front of the list
     }      }
       # Sort the groups
       @Groups = sort {$a cmp $b} keys(%{$studentgroups});
       unshift(@Groups,'all'); # Put 'all' at the front of the list
   
     #      #
     # Sort the Students      # Sort the Students
     my $sortby = 'fullname';      my $sortby = 'fullname';
     $sortby = $ENV{'form.sort'} if (exists($ENV{'form.sort'}));      $sortby = $env{'form.sort'} if (exists($env{'form.sort'}));
     my @TmpStudents = sort { $a->{$sortby} cmp $b->{$sortby} ||      my @TmpStudents = sort { lc($a->{$sortby}) cmp lc($b->{$sortby}) ||
                              $a->{'fullname'} cmp $b->{'fullname'} } @Students;                               lc($a->{'fullname'}) cmp lc($b->{'fullname'}) ||
        lc($a->{'username'}) cmp lc($b->{'username'}) } @Students;
     @Students = @TmpStudents;      @Students = @TmpStudents;
     #       # 
     # Now deal with that current student thing....      # Now deal with that current student thing....
     $curr_student = undef;      $curr_student = undef;
     if (exists($ENV{'form.SelectedStudent'})) {      if (exists($env{'form.SelectedStudent'})) {
         my ($current_uname,$current_dom) =           my ($current_uname,$current_dom) = 
             split(':',$ENV{'form.SelectedStudent'});              split(':',$env{'form.SelectedStudent'});
         my $i;          my $i;
         for ($i = 0; $i<=$#Students; $i++) {          for ($i = 0; $i<=$#Students; $i++) {
             next if (($Students[$i]->{'username'} ne $current_uname) ||               next if (($Students[$i]->{'username'} ne $current_uname) || 
Line 315  sub PrepareClasslist { Line 245  sub PrepareClasslist {
         }          }
     }      }
     #      #
     if (exists($ENV{'form.StudentData'})) {      if (exists($env{'form.StudentData'})) {
         if (ref($ENV{'form.StudentData'}) eq 'ARRAY') {   @SelectedStudentData = 
             @SelectedStudentData = @{$ENV{'form.StudentData'}};      &Apache::loncommon::get_env_multiple('form.StudentData');
         } else {  
             @SelectedStudentData = ($ENV{'form.StudentData'});  
         }  
     } else {      } else {
         @SelectedStudentData = ('username');          @SelectedStudentData = ('username');
     }      }
Line 335  sub PrepareClasslist { Line 262  sub PrepareClasslist {
 }  }
   
   
 #######################################################  sub get_selected_sections {
 #######################################################      my @selected_sections = 
    &Apache::loncommon::get_env_multiple('form.Section');
       @selected_sections = ('all') if (! @selected_sections);
       foreach (@selected_sections) {
           if ($_ eq 'all') {
               @selected_sections = ('all');
           }
       }
       #
       # Deal with instructors with restricted section access
       if ($env{'request.course.sec'} !~ /^\s*$/) {
           @selected_sections = ($env{'request.course.sec'});
       }
       return @selected_sections;
   }
   
 =pod  
   
 =item get_students  sub get_selected_groups {
       my @selected_groups =
           &Apache::loncommon::get_env_multiple('form.Group');
       @selected_groups = ('all') if (! @selected_groups);
       foreach my $grp (@selected_groups) {
           if ($grp eq 'all') {
               @selected_groups = ('all');
               last;
           }
       }
       return @selected_groups;
   }
                                                                                       
   
 Returns a list of the selected students  
   
 =cut  sub section_and_enrollment_description {
       my ($mode) = @_;
       if (! defined($mode)) { $mode = 'localized'; }
       my @sections = &Apache::lonstatistics::get_selected_sections();
       my @groups = &Apache::lonstatistics::get_selected_groups();
       my $description;
       if ($mode eq 'localized') {
           $description = &mt('Unable to determine section, groups and access status');
       } elsif ($mode eq 'plaintext') {
           $description = 'Unable to determine section, groups and access status';
       } else {
           $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description';
           &Apache::lonnet::logthis($description);
       }
       $description = &section_or_group_text($mode,'section',@sections).
    ' '.&section_or_group_text($mode,'group',@groups);
       if ($mode eq 'localized') {
           $description .= ' '.&mt($env{'form.Status'}.' access status.');
       } elsif ($mode eq 'plaintext') {
           $description .= ' '.$env{'form.Status'}.' access status.';
       }
       return $description;
   }
   
   
   
   
   sub section_or_group_text {
       my ($mode,$type,@items) = @_;
       my $text;
       my %phrases = ();
       %{$phrases{'section'}} = (
                                 single => 'Section',
                                 all => 'All sections',
                                 plural => 'Sections',
                                );
       %{$phrases{'group'}} = (
                                 single => 'Group',
                                 all => 'All groups',
                                 plural => 'Groups',
                                );
       if (scalar(@items) == 1 && $items[0] ne 'all') {
           if ($mode eq 'localized') {
               $text = &mt($phrases{$type}{single}.' [_1].',$items[0]);
           } elsif ($mode eq 'plaintext') {
               $text = $phrases{$type}{single}.' '.$items[0].'.';
   
           }
       } elsif (scalar(@items) && $items[0] eq 'all') {
           if ($mode eq 'localized') {
               $text = &mt($phrases{$type}{all}.'.');
           } elsif ($mode eq 'plaintext') {
               $text = $phrases{$type}{all}.'.';
           }
       } elsif (scalar(@items)) {
           my $lastitem = pop(@items);
           if ($mode eq 'localized') {
               $text = &mt($phrases{$type}{plural}.' [_1] and [_2].',
                           join(', ',@items),$lastitem);
           } elsif ($mode eq 'plaintext') {
               $text = $phrases{$type}{plural}.' '.join(', ',@items).' and '.
                       $lastitem.'.';
           }
       }
       return $text;
   }
   
   
 #######################################################  
 #######################################################  
 sub get_students {  sub get_students {
     if (! @Students) {      if (! @Students) {
         &PrepareClasslist()          &PrepareClasslist()
Line 355  sub get_students { Line 370  sub get_students {
     return @Students;      return @Students;
 }  }
   
 #######################################################  
 #######################################################  
   
 =pod  
   
 =item &current_student()  
   
 Returns a pointer to a hash containing data about the currently  
 selected student.  
   
 =cut  
   
 #######################################################  
 #######################################################  
 sub current_student {   sub current_student { 
     return $curr_student;      return $curr_student;
 }  }
   
 #######################################################  
 #######################################################  
   
 =pod  
   
 =item &previous_student()  
   
 Returns a pointer to a hash containing data about the student prior  
 in the list of students.  Or something.    
   
 =cut  
   
 #######################################################  
 #######################################################  
 sub previous_student {   sub previous_student { 
     return $prev_student;      return $prev_student;
 }  }
   
 #######################################################  
 #######################################################  
   
 =pod  
   
 =item &next_student()  
   
 Returns a pointer to a hash containing data about the next student  
 to be viewed.  
   
 =cut  
   
 #######################################################  
 #######################################################  
 sub next_student {   sub next_student { 
     return $next_student;      return $next_student;
 }  }
   
 ##############################################  
 ##############################################  
   
 =pod   
   
 =item &StudentDataSelect($elementname,$status,$numvisible,$selected)  
   
 Returns html for a selection box allowing the user to choose one (or more)   
 of the fields of student data available (fullname, username, id, section, etc)  
   
 =over 4  
   
 =item $elementname The name of the HTML form element  
   
 =item $status 'multiple' or 'single' selection box  
   
 =item $numvisible The number of options to be visible  
   
 =back  
   
 =cut  
   
 ##############################################  
 ##############################################  
 sub StudentDataSelect {  sub StudentDataSelect {
     my ($elementname,$status,$numvisible)=@_;      my ($elementname,$status,$numvisible)=@_;
     if ($numvisible < 1) {      if ($numvisible < 1) {
Line 472  sub StudentDataSelect { Line 429  sub StudentDataSelect {
     return $Str;      return $Str;
 }  }
   
 #######################################################  
 #######################################################  
   
 =pod  
   
 =item &get_selected_maps($elementname)  
   
 Input: Name of the <select> form element used to specify the maps.  
   
 Returns: Array of symbs of selected maps or the description 'all'.  
    If form.$elementname does not exist, 'all' is returned.  
   
 =cut  
   
 #######################################################  
 #######################################################  
 sub get_selected_maps {  sub get_selected_maps {
     my ($elementname) = @_;      my ($elementname) = @_;
     my @selected_maps;      my @selected_maps = 
     if (exists($ENV{'form.'.$elementname})) {   &Apache::loncommon::get_env_multiple('form.'.$elementname);
         if (ref($ENV{'form.'.$elementname})) {      @selected_maps = ('all') if (! @selected_maps);
             @selected_maps = @{$ENV{'form.'.$elementname}};      foreach my $map (@selected_maps) {
         } else {          if ($map eq 'all') {
             @selected_maps = ($ENV{'form.'.$elementname});              @selected_maps = ('all');
               last;
         }          }
     } else {  
         @selected_maps = ('all');  
     }      }
     return @selected_maps;      return @selected_maps;
 }  }
   
   
 #######################################################  
 #######################################################  
   
 =pod  
   
 =item &sequences_with_assessments  
   
 Retrieve the sequences which were selected by the user to show.    sub selected_sequences_with_assessments {
   
 Input: $mode: scalar.  Either 'selected' or 'all'.  If not specified,  
     'selected' is used.  
   
 Returns: an array containing a navmap object and navmap resources,   
     or an array containing a scalar with an error message.  
   
 =cut  
   
 #######################################################  
 #######################################################  
 sub sequences_with_assessments {  
     my ($mode) = @_;      my ($mode) = @_;
     $mode = 'selected' if (! defined($mode));      $mode = 'selected' if (! defined($mode));
     my $navmap = Apache::lonnavmaps::navmap->new();      my $navmap = Apache::lonnavmaps::navmap->new();
Line 533  sub sequences_with_assessments { Line 458  sub sequences_with_assessments {
     #      #
     my @sequences = $navmap->retrieveResources(undef,      my @sequences = $navmap->retrieveResources(undef,
                                                sub { shift->is_map(); },1,0,1);                                                 sub { shift->is_map(); },1,0,1);
       my $toplevelseq = $navmap->getById('0.0');
       if (!grep(/^\Q$toplevelseq\E$/,@sequences)) {
           unshift(@sequences,$toplevelseq);
       }
   
     my @sequences_with_assessments;      my @sequences_with_assessments;
     for my $sequence ($navmap->getById('0.0'), @sequences) {      foreach my $sequence (@sequences) {
  if ($navmap->hasResource($sequence,sub { shift->is_problem(); }, 0)){   if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
             push(@sequences_with_assessments,$sequence);              push(@sequences_with_assessments,$sequence);
         }          }
     }      }
Line 545  sub sequences_with_assessments { Line 475  sub sequences_with_assessments {
         if ($mode eq 'all') {          if ($mode eq 'all') {
             push (@sequences_to_show,$sequence);              push (@sequences_to_show,$sequence);
         } elsif ($mode eq 'selected') {          } elsif ($mode eq 'selected') {
             foreach my $map_symb (&get_selected_maps()) {              foreach my $map_symb (&get_selected_maps('Maps')) {
                 if ($sequence->symb eq $map_symb || $map_symb eq 'all'){                  if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
                     push (@sequences_to_show,$sequence);                      push (@sequences_to_show,$sequence);
                     last; # Only put it in once                      last; # Only put it in once
Line 557  sub sequences_with_assessments { Line 487  sub sequences_with_assessments {
     return $navmap,@sequences_to_show;      return $navmap,@sequences_to_show;
 }  }
   
 ##############################################  
 ##############################################  
   
 =pod   
   
 =item &map_select($elementname,$status,$numvisible,$restriction)   
   
 Returns html for a selection box allowing the user to choose one (or more)   
 of the sequences in the course.  The values of the sequences are the symbs.  
 If the top sequence is selected, the value 'top' will result.  
   
 =over 4  
   
 =item $elementname The name of the HTML form element  
   
 =item $status 'multiple' or 'single' selection box  
   
 =item $numvisible The number of options to be visible  
   
 =back  
   
 =cut  
   
 ##############################################  
 ##############################################  
 sub map_select {  sub map_select {
     my ($elementname,$status,$numvisible)=@_;      my ($elementname,$status,$numvisible)=@_;
     if ($numvisible < 1) {      if ($numvisible < 1) {
Line 599  sub map_select { Line 505  sub map_select {
     }      }
     $form .= 'size="'.$numvisible.'" >'."\n";      $form .= 'size="'.$numvisible.'" >'."\n";
     #      #
     # Deal with 'all'  
     foreach (@selected_maps) {  
         if ($_ eq 'all') {  
             @selected_maps = ('all');  
             last;  
         }  
     }  
     #  
     # Put in option for 'all'      # Put in option for 'all'
     $form .= '    <option value="all" ';      $form .= '    <option value="all" ';
     foreach (@selected_maps) {      if ($selected_maps[0] eq 'all') {
         if ($_ eq 'all') {          $form .= 'selected ';
             $form .= 'selected ';  
             last;  
         }  
     }      }
     $form .= ">all</option>\n";      $form .= ">all</option>\n";
     #      #
     # Loop through the sequences      # Loop through the sequences
     my @sequences = &sequences_with_assessments();      my @sequences = &selected_sequences_with_assessments('all');
     my $navmap;      my $navmap;
     if (!ref($sequences[0])) {      if (!ref($sequences[0])) {
         return $sequences[0];          return $sequences[0];
Line 639  sub map_select { Line 534  sub map_select {
     return $form;      return $form;
 }  }
   
 ##############################################  
 ##############################################  
   
 =pod   
   
 =item &SectionSelect($elementname,$status,$numvisible)   
   
 Returns html for a selection box allowing the user to choose one (or more)   
 of the sections in the course.    
   
 Uses the package variables @Sections and @SelectedSections  
 =over 4  
   
 =item $elementname The name of the HTML form element  
   
 =item $status 'multiple' or 'single' selection box  
   
 =item $numvisible The number of options to be visible  
   
 =back  
   
 =cut  
   
 ##############################################  
 ##############################################  
 sub SectionSelect {  sub SectionSelect {
     my ($elementname,$status,$numvisible)=@_;      my ($elementname,$status,$numvisible)=@_;
     if ($numvisible < 1) {      if ($numvisible < 1) {
Line 686  sub SectionSelect { Line 557  sub SectionSelect {
     # Loop through the sequences      # Loop through the sequences
     foreach my $s (@Sections) {      foreach my $s (@Sections) {
         $Str .= '    <option value="'.$s.'" ';          $Str .= '    <option value="'.$s.'" ';
         foreach (@SelectedSections) {          foreach (&get_selected_sections()) {
             if ($s eq $_) {              if ($s eq $_) {
                 $Str .= 'selected ';                  $Str .= 'selected ';
                 last;                  last;
Line 698  sub SectionSelect { Line 569  sub SectionSelect {
     return $Str;      return $Str;
 }  }
   
 ##################################################  
 ##################################################  sub GroupSelect {
       my ($elementname,$status,$numvisible)=@_;
       if ($numvisible < 1) {
           return;
       }
       #
       # Make sure we have the data we need to continue
       if (! @Groups) {
           &PrepareClasslist();
       }
       #
       # Build the form element
       my $Str = "\n";
       $Str .= '<select name="'.$elementname.'" ';
       if ($status ne 'single') {
           $Str .= 'multiple="true" ';
       }
       $Str .= 'size="'.$numvisible.'" >'."\n";
       #
       # Loop through the groups
       foreach my $s (@Groups) {
           $Str .= '    <option value="'.$s.'" ';
           foreach my $group (&get_selected_groups()) {
               if ($s eq $group) {
                   $Str .= 'selected ';
                   last;
               }
           }
           $Str .= '>'.$s."</option>\n";
       }
       $Str .= "</select>\n";
   }
   
   
   
   
 sub DisplayClasslist {  sub DisplayClasslist {
     my ($r)=@_;      my ($r)=@_;
     &Apache::lonhtmlcommon::add_breadcrumb      &Apache::lonhtmlcommon::add_breadcrumb
Line 707  sub DisplayClasslist { Line 613  sub DisplayClasslist {
     #      #
     # Output some of the standard interface components      # Output some of the standard interface components
     my $Str;      my $Str;
     $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Select One Student');      $Str .= &Apache::lonhtmlcommon::breadcrumbs('Select One Student');
     $Str .= '<p><table cellspacing="5">'."\n";      $Str .= '<p><table cellspacing="5">'."\n";
     $Str .= '<tr>';      $Str .= '<tr>';
     $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';      $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
     $Str .= '<th align="center"><b>'.&mt('Enrollment Status').'</b></th>';      $Str .= '<th align="center"><b>'.&mt('Groups').'</b></th>';
       $Str .= '<th align="center"><b>'.&mt('Access Status').'</b></th>';
     $Str .= '</tr>'.$/;      $Str .= '</tr>'.$/;
     $Str .= '<tr>';      $Str .= '<tr>';
     $Str .= '<td>'.      $Str .= '<td>'.
         &Apache::lonstatistics::SectionSelect('Section','multiple',5).          &Apache::lonstatistics::SectionSelect('Section','multiple',5).
         '</td>';          '</td>';
       $Str .=  '<td>'.
           &Apache::lonstatistics::GroupSelect('Group','multiple',5).
           '</td>';
     $Str .= '<td>'.      $Str .= '<td>'.
         &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).          &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
         '</td>';          '</td>';
Line 728  sub DisplayClasslist { Line 638  sub DisplayClasslist {
     $r->print($Str);      $r->print($Str);
     $r->rflush();      $r->rflush();
     #      #
     my @Fields = ('fullname','username','domain','id','section','status');      my @Fields = ('fullname','username','domain','id','section','status','groups');
     #      #
     $Str = '';      $Str = '';
       my @selected_sections = &get_selected_sections();
     if (! @Students) {      if (! @Students) {
         if ($SelectedSections[0] eq 'all') {           if ($selected_sections[0] eq 'all') { 
             if (lc($ENV{'form.Status'}) eq 'any') {              if (lc($env{'form.Status'}) eq 'active') {
                 $Str .= '<h2>'.                  $Str .= '<p class="LC_info">'.
                     &mt('There are no students in the course.').  
                     '</h2>';  
             } elsif (lc($ENV{'form.Status'}) eq 'active') {  
                 $Str .= '<h2>'.  
                 &mt('There are no currently enrolled students in the course.').                  &mt('There are no currently enrolled students in the course.').
                     '</h2>';                      '</p>';
             } elsif (lc($ENV{'form.Status'}) eq 'expired') {              } elsif (lc($env{'form.Status'}) eq 'expired') {
                 $Str .= '<h2>'.                  $Str .= '<p class="LC_info">'.
                     &mt('There are no previously enrolled students in the course.').                      &mt('There are no previously enrolled students in the course.').
                         '</h2>';                          '</p>';
               } elsif (lc($env{'form.Status'}) eq 'future') {
                   $Str .= '<p class="LC_info">'.
                       &mt('There are no students with future access in the course.').
                           '</p>';
               } else { # 'any' and any others
                  $Str .= '<p class="LC_info">'.
                       &mt('There are no students in the course.').
                       '</p>';
             }              }
         } else {           } else { 
             my $sections;              if (lc($env{'form.Status'}) eq 'active') {
             if (lc($ENV{'form.Status'}) eq 'any') {                  $Str .= '<p class="LC_info">'.
                 $Str .= '<h2>'.  
                     &mt('There are no students in the selected sections.').  
                     '</h2>';  
             } elsif (lc($ENV{'form.Status'}) eq 'active') {  
                 $Str .= '<h2>'.  
                     &mt('There are no currently enrolled students in the selected sections.').                      &mt('There are no currently enrolled students in the selected sections.').
                     '</h2>';                      '</p>';
             } elsif (lc($ENV{'form.Status'}) eq 'expired') {              } elsif (lc($env{'form.Status'}) eq 'expired') {
                 $Str .= '<h2>'.                  $Str .= '<p class="LC_info">'.
                     &mt('There are no previously enrolled students in the selected sections.').                      &mt('There are no previously enrolled students in the selected sections.').
                     '</h2>';                      '</p>';
               } elsif (lc($env{'form.Status'}) eq 'future') {
                   $Str .= '<p class="LC_info">'.
                       &mt('There are no students with future access in the selected sections.').
                           '</p>';
               } else { # 'any' and any others
                   $Str .= '<p class="LC_info">'.
                       &mt('There are no students in the selected sections.').
                       '</p>';
             }              }
         }          }
         $Str.= '<a href="/adm/statistics?reportSelected=student_assessment">'.          $Str.= '<p>'
             &mt('Click here to return to the chart').'</a>';                .'<a href="/adm/statistics?reportSelected=student_assessment">'
                 .&mt('Return to the chart').'</a>'
                 .'</p>';
         $r->print($Str);          $r->print($Str);
         $r->rflush();          $r->rflush();
         return;          return;
     }      }
   
     # "Click" is asinine but it is probably not my place to change the world.      $Str .= '<h2>'.&mt('Select One Student').'</h2>'
     $Str .= '<h2>Click on a students name or username to view their chart</h2>';             .'<p>'.&mt("Click on a student's name or username to view their chart").'</p>'
     $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";             .&Apache::loncommon::start_data_table()
     $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";             .&Apache::loncommon::start_data_table_header_row();
     foreach my $field (@Fields) {      foreach my $field (@Fields) {
         $Str .= '<th><a href="/adm/statistics?'.          $Str .= '<th><a href="/adm/statistics?'.
             'reportSelected=student_assessment&'.              'reportSelected=student_assessment&'.
Line 780  sub DisplayClasslist { Line 700  sub DisplayClasslist {
             'sort='.$field.'">'.&mt($field).              'sort='.$field.'">'.&mt($field).
             '</a></th>';              '</a></th>';
     }      }
     $Str .= '</tr>'."\n";      $Str .= &Apache::loncommon::end_data_table_header_row();
     #      #
     my $alternate = 0;  
     foreach my $student (@Students) { # @Students is a package variable      foreach my $student (@Students) { # @Students is a package variable
         my $sname = $student->{'username'}.':'.$student->{'domain'};          my $sname = $student->{'username'}.':'.$student->{'domain'};
         if($alternate) {          $Str .= &Apache::loncommon::start_data_table_row();
             $Str .= '<tr bgcolor="#ffffe6">';  
         } else {  
             $Str .= '<tr bgcolor="#ffffc6">';  
         }  
         $alternate = ($alternate + 1) % 2;  
         #          #
         foreach my $field (@Fields) {          foreach my $field (@Fields) {
             $Str .= '<td>';              $Str .= '<td>';
             if ($field eq 'fullname' || $field eq 'username') {              if ($field eq 'fullname' || $field eq 'username') {
                 $Str .= '<a href="/adm/statistics?reportSelected=';                  $Str .= '<a href="/adm/statistics?reportSelected=';
                 $Str .= &Apache::lonnet::escape('student_assessment');                  $Str .= &escape('student_assessment');
                 $Str .= '&sort='.&Apache::lonnet::escape($ENV{'form.sort'});                  $Str .= '&sort='.&escape($env{'form.sort'});
                 $Str .= '&SelectedStudent=';                  $Str .= '&SelectedStudent=';
                 $Str .= &Apache::lonnet::escape($sname).'">';                  $Str .= &escape($sname).'">';
                 $Str .= $student->{$field}.'&nbsp';                  $Str .= $student->{$field}.'&nbsp;';
                 $Str .= '</a>';                  $Str .= '</a>';
             } elsif ($field eq 'status') {              } elsif ($field eq 'status') {
                 $Str .= &mt($student->{$field});                  $Str .= &mt($student->{$field});
Line 809  sub DisplayClasslist { Line 723  sub DisplayClasslist {
             }              }
             $Str .= '</td>';              $Str .= '</td>';
         }          }
         $Str .= "</tr>\n";          $Str .= &Apache::loncommon::end_data_table_row();
     }      }
     $Str .= '</table></td></tr></table>'."\n";      $Str .= &Apache::loncommon::end_data_table();
     #      #
     $r->print($Str);      $r->print($Str);
     $r->rflush();      $r->rflush();
Line 819  sub DisplayClasslist { Line 733  sub DisplayClasslist {
     return;      return;
 }  }
   
 ##############################################  
 ##############################################  
 sub CreateMainMenu {  sub CreateMainMenu {
     #      #
     # Define menu data      # Define menu data
Line 854  sub CreateMainMenu { Line 768  sub CreateMainMenu {
                      short_description =>                        short_description => 
     &mt('Display a histogram of student performance in the course.'),      &mt('Display a histogram of student performance in the course.'),
                  },                   },
   #                   { internal_name => 'grading_analysis',
   #                     name => &mt('Detailed Grading Analysis'),
   #                     short_description => 
   #    &mt('Display statistics about who graded who.'),
   #                 },
 #                   { internal_name => 'student_assessment',  #                   { internal_name => 'student_assessment',
 #                     name => &mt('Problem Status Chart'),  #                     name => &mt('Problem Status Chart'),
 #                     short_description =>   #                     short_description => 
Line 878  sub CreateMainMenu { Line 797  sub CreateMainMenu {
     return $Str;      return $Str;
 }  }
   
 ##############################################  
 ##############################################  
 sub handler {  sub handler {
     my $r=shift;      my $r=shift;
     my $c = $r->connection();      my $c = $r->connection();
Line 889  sub handler { Line 808  sub handler {
     if ($loaderror) { return $loaderror; }      if ($loaderror) { return $loaderror; }
     $loaderror=      $loaderror=
        &Apache::lonnet::overloaderror($r,         &Apache::lonnet::overloaderror($r,
          $ENV{'course.'.$ENV{'request.course.id'}.'.home'});           $env{'course.'.$env{'request.course.id'}.'.home'});
     if ($loaderror) { return $loaderror; }      if ($loaderror) { return $loaderror; }
     #      #
     # Check for access      # Check for access
     if (! &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {      if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
         $ENV{'user.error.msg'}=          $env{'user.error.msg'}=
             $r->uri.":vgr:0:0:Cannot view grades for complete course";              $r->uri.":vgr:0:0:Cannot view grades for complete course";
         if (! &Apache::lonnet::allowed('vgr',          if (! &Apache::lonnet::allowed('vgr',
                       $ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) {                        $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
             $ENV{'user.error.msg'}=              $env{'user.error.msg'}=
                 $r->uri.":vgr:0:0:Cannot view grades with given role";                  $r->uri.":vgr:0:0:Cannot view grades with given role";
             return HTTP_NOT_ACCEPTABLE;              return HTTP_NOT_ACCEPTABLE;
         }          }
Line 924  sub handler { Line 843  sub handler {
     td.essay          { border: 1px solid gray; }      td.essay          { border: 1px solid gray; }
 </style>  </style>
 ENDSTYLE  ENDSTYLE
     my $html=&Apache::lonxml::xmlbegin();        
     $r->print($html.'<head><title>'.      $r->print(&Apache::loncommon::start_page('Course Statistics and Charts',
               &mt('Course Statistics and Charts').       $style));
               '</title>'.$style.  
               "</head>\n".  
               &Apache::loncommon::bodytag('Course Statistics and Charts'));  
     $r->rflush();      $r->rflush();
     #       # 
     # Either print out a menu for them or send them to a report      # Either print out a menu for them or send them to a report
Line 939  ENDSTYLE Line 855  ENDSTYLE
                                             text =>'Statistics',                                              text =>'Statistics',
                                             faq=>139,                                              faq=>139,
                                             bug=>'Statistics and Charts'});                                              bug=>'Statistics and Charts'});
     if (! exists($ENV{'form.reportSelected'}) ||       if (! exists($env{'form.reportSelected'}) || 
         $ENV{'form.reportSelected'} eq '') {          $env{'form.reportSelected'} eq '') {
         $r->print(&Apache::lonhtmlcommon::breadcrumbs          $r->print(&Apache::lonhtmlcommon::breadcrumbs('Statistics Main Page').
                   (undef,&mt('Statistics Main Page')).  
                   &CreateMainMenu());                    &CreateMainMenu());
     } else {      } else {
     #      #
         if (! &Apache::lonmysql::verify_sql_connection()) {          if (! &Apache::lonmysql::verify_sql_connection()) {
             my $serveradmin = $r->dir_config('lonAdmEMail');              my $serveradmin = $r->dir_config('lonAdmEMail');
             $r->print('<h2><font color="Red">'.              $r->print('<h2 class="LC_error">'.
                       &mt('Unable to connect to database!').                        &mt('Unable to connect to database!').
                       '</font></h2>');                        '</h2>');
             $r->print('<p>'.              $r->print('<p>'
                       &mt('Please notify the server administrator ').                       .&mt('Please notify the server administrator [_1]',
                       '<b>'.$serveradmin.'</b></p>');                           ,'<b>'.$serveradmin.'</b>')
                        .'</p>');
             $r->print('<p>'.              $r->print('<p>'.
                       &mt('Course Statistics and Charts cannot be '.                        &mt('Course Statistics and Charts cannot be '.
                           'retrieved until the database is restarted.  '.                            'retrieved until the database is restarted.  '.
                           'Your data is intact but cannot be displayed '.                            'Your data is intact but cannot be displayed '.
                           'at this time.').'</p>');                            'at this time.').'</p>');
             $r->print('</body></html>');              $r->print(&Apache::loncommon::end_page());
             return;              return;
         }          }
         #          #
         # Clean out the caches          # Clean out the caches
         if (exists($ENV{'form.ClearCache'})) {          if (exists($env{'form.ClearCache'})) {
             &Apache::loncoursedata::delete_caches($ENV{'requres.course.id'});              &Apache::loncoursedata::delete_caches($env{'requres.course.id'});
         }          }
         #          #
         # Begin form output          # Begin form output
Line 973  ENDSTYLE Line 889  ENDSTYLE
         $r->print('method="post" action="/adm/statistics">');          $r->print('method="post" action="/adm/statistics">');
         $r->rflush();          $r->rflush();
         #          #
         my $GoToPage = $ENV{'form.reportSelected'};          my $GoToPage = $env{'form.reportSelected'};
         #          #
         $r->print('<input type="hidden" name="reportSelected" value="'.          $r->print('<input type="hidden" name="reportSelected" value="'.
                   $GoToPage.'">');                    $GoToPage.'">');
Line 1018  ENDSTYLE Line 934  ENDSTYLE
                 ({href=>'/adm/statistics?reportselected=student_assessment',                  ({href=>'/adm/statistics?reportselected=student_assessment',
                   text=>'Chart'});                    text=>'Chart'});
             &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);              &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
         }          } elsif($GoToPage eq 'grading_analysis') {
               &Apache::lonhtmlcommon::add_breadcrumb
                   ({href=>'/adm/statistics?reportselected=grading_anaylsis',
                     text=>'Grading Analysis'});
               &Apache::longradinganalysis::build_grading_analysis_page($r,$c);
    }
         #          #
         $r->print("</form>\n");          $r->print("</form>\n");
     }      }
     $r->print("</body>\n</html>\n");      $r->print(&Apache::loncommon::end_page());
     $r->rflush();      $r->rflush();
     #      #
     return OK;      return OK;
Line 1030  ENDSTYLE Line 951  ENDSTYLE
   
 1;  1;
   
 #######################################################  __END__
 #######################################################  
   
 =pod  =pod
   
   =head1 NAME
   
   lonstatistics
   
   =head1 SYNOPSIS
   
   Main handler for statistics and chart.
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   
   =head1 PACKAGE VARIABLES
   
   =over
   
   =item @FullClasslist The full classlist
   
   =item @Students The students we are concerned with for this invocation
   
   =item @Sections The sections available in this class
   
   =item @Groups The groups available in the class
   
   =item $curr_student The student currently being examined
   
   =item $prev_student The student previous in the classlist
   
   =item $next_student The student next in the classlist
   
 =back  =back
   
 =cut  =head1 SUBROUTINES
   
 #######################################################  =over
 #######################################################  
   
 __END__  =item &clear_classlist_variables()
   
   undef the following package variables:
   
   =over 4
   
   =item * @FullClasslist
   
   =item * @Students
   
   =item * @Sections
   
   =item * @Groups
   
   =item * %StudentData
   
   =item * @StudentDataOrder
   
   =item * @SelectedStudentData
   
   =item * $curr_student
   
   =item * $prev_student
   
   =item * $next_student
   
   =back
   
   =item &PrepareClasslist()
   
   Build up the classlist information.  The classlist information is kept in
   the following package variables:
   
   =over 4 
   
   =item * @FullClasslist
   
   =item * @Students
   
   =item * @Sections
   
   =item * @Groups 
   
   =item * %StudentData
   
   =item * @SelectedStudentData
   
   =item * $curr_student
   
   =item * $prev_student
   
   =item * $next_student
   
   =back
   
   $curr_student, $prev_student, and $next_student may not be defined, depending
   upon the calling context.
   
   =item get_selected_sections()
   
   Returns an array of the selected sections
   
   =item get_selected_groups()
                                                                                       
   Returns an array of the selected groups
   
   =item &section_and_enrollment_description()
   
   Returns a string describing the currently selected section(s), group(s) and 
   access status.  
   
   Inputs: mode = 'plaintext' or 'localized'  (defaults to 'localized')
       'plaintext' is used for example in Excel spreadsheets.
   Returns: scalar description string.
   
   =item section_or_group_text()
   
   =item get_students()
   
   Returns a list of the selected students
   
   =item &current_student()
   
   Returns a pointer to a hash containing data about the currently
   selected student.
   
   =item &previous_student()
   
   Returns a pointer to a hash containing data about the student prior
   in the list of students.  Or something. 
   
   =item &next_student()
   
   Returns a pointer to a hash containing data about the next student
   to be viewed. 
   
   =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
   
   Returns html for a selection box allowing the user to choose one (or more) 
   of the fields of student data available (fullname, username, id, section, etc)
   
   =over 4
   
   =item * $elementname The name of the HTML form element
   
   =item * $status 'multiple' or 'single' selection box
   
   =item * $numvisible The number of options to be visible
   
   =back
   
   =item &get_selected_maps($elementname)
   
   Input: Name of the <select> form element used to specify the maps.
   
   Returns: Array of symbs of selected maps or the description 'all'.
      If form.$elementname does not exist, 'all' is returned.
   
   =item &selected_sequences_with_assessments()
   
   Retrieve the sequences which were selected by the user to show.  
   
   Input: $mode: scalar.  Either 'selected' or 'all'.  If not specified,
       'selected' is used.
   
   Returns: an array containing a navmap object and navmap resources, 
       or an array containing a scalar with an error message.
   
   =item &map_select($elementname,$status,$numvisible,$restriction) 
   
   Returns html for a selection box allowing the user to choose one (or more) 
   of the sequences in the course.  The values of the sequences are the symbs.
   If the top sequence is selected, the value 'top' will result.
   
   =over 4
   
   =item * $elementname The name of the HTML form element
   
   =item * $status 'multiple' or 'single' selection box
   
   =item * $numvisible The number of options to be visible
   
   =back
   
   =item &SectionSelect($elementname,$status,$numvisible) 
   
   Returns html for a selection box allowing the user to choose one (or more) 
   of the sections in the course.  
   
   Uses the package variables @Sections
   
   =over 4
   
   =item * $elementname The name of the HTML form element
   
   =item * $status 'multiple' or 'single' selection box
   
   =item * $numvisible The number of options to be visible
   
   =back
   
   =item &GroupSelect($elementname,$status,$numvisible)
                                                                                       
   Returns html for a selection box allowing the user to choose one (or more)
   of the groups in the course.
                                                                                       
   Uses the package variables @Groups
   
   =over 4
                                                                                       
   =item * $elementname The name of the HTML form element
                                                                                       
   =item * $status 'multiple' or 'single' selection box
                                                                                       
   =item * $numvisible The number of options to be visible
                                                                                       
   =back
   
   =item CreateMainMenu()
   
   =back
   
   =cut
   
Removed from v.1.115  
changed lines
  Added in v.1.144.2.1

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