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Diff for /loncom/interface/statistics/lonstathelpers.pm between versions 1.8 and 1.11

version 1.8, 2004/03/16 16:30:31 version 1.11, 2004/04/01 22:13:39
Line 345  sub get_prev_curr_next { Line 345  sub get_prev_curr_next {
   
 =pod  =pod
   
   =item GetStudentAnswers($r,$problem,$Students)
   
   Determines the correct answer for a set of students on a given problem.
   The students answers are stored in the student hashes pointed to by the
   array @$Students under the key 'answer'.
   
   Inputs: $r
   $problem: hash reference containing the keys 'resource', 'part', and 'respid'.
   $Students: reference to array containing student hashes (need 'username', 
       'domain').  
   
   Returns: nothing 
   
   =cut
   
   #####################################################
   #####################################################
   sub GetStudentAnswers {
       my ($r,$problem,$Students) = @_;
       my $c = $r->connection();
       my %Answers;
       my ($resource,$partid,$respid) = ($problem->{'resource'},
                                         $problem->{'part'},
                                         $problem->{'respid'});
       # Read in the cache (if it exists) before we start timing things.
       &Apache::lonstathelpers::ensure_proper_cache($resource->{'symb'});
       # Open progress window
       my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
           ($r,'Student Answer Compilation Status',
            'Student Answer Compilation Progress', scalar(@$Students));
       $r->rflush();
       foreach my $student (@$Students) {
           last if ($c->aborted());
           my $sname = $student->{'username'};
           my $sdom = $student->{'domain'};
           my $answer = &Apache::lonstathelpers::analyze_problem_as_student
               ($resource,$sname,$sdom,$partid,$respid);
           &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                                                    &mt('last student'));
           $student->{'answer'} = $answer;
       }
       &Apache::lonstathelpers::write_answer_cache();
       return if ($c->aborted());
       $r->rflush();
       # close progress window
       &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
       return;
   }
   
   #####################################################
   #####################################################
   
   =pod
   
 =item analyze_problem_as_student  =item analyze_problem_as_student
   
 Analyzes a homework problem for a student and returns the correct answer  Analyzes a homework problem for a student and returns the correct answer
Line 424  sub get_answer { Line 478  sub get_answer {
             }              }
             foreach my $foil (@{$Answer{$prefix.'.shown'}}) {              foreach my $foil (@{$Answer{$prefix.'.shown'}}) {
                 if (ref($values{$foil}) eq 'ARRAY') {                  if (ref($values{$foil}) eq 'ARRAY') {
                     $returnvalue.=&HTML::Entities::encode($foil).'='.                      $returnvalue.=&HTML::Entities::encode($foil,'<>&"').'='.
                         join(',',map {&HTML::Entities::encode($_)} @{$values{$foil}}).'&';                          join(',',map {&HTML::Entities::encode($_,'<>&"')} @{$values{$foil}}).'&';
                 } else {                  } else {
                     $returnvalue.=&HTML::Entities::encode($foil).'='.                      $returnvalue.=&HTML::Entities::encode($foil,'<>&"').'='.
                         &HTML::Entities::encode($values{$foil}).'&';                          &HTML::Entities::encode($values{$foil},'<>&"').'&';
                 }                  }
             }              }
             $returnvalue =~ s/ /\%20/g;              $returnvalue =~ s/ /\%20/g;
Line 947  sub get_time_limits { Line 1001  sub get_time_limits {
     return ($starttime,$endtime);      return ($starttime,$endtime);
 }  }
   
   
   
   ####################################################
   ####################################################
   
   =pod
   
   =item sections_description 
   
   Inputs: @Sections, an array of sections
   
   Returns: A text description of the sections selected.
   
   =cut
   
   ####################################################
   ####################################################
   sub sections_description {
       my @Sections = @_;
       my $sectionstring = '';
       if (scalar(@Sections) > 1) {
           if (scalar(@Sections) > 2) {
               my $last = pop(@Sections);
               $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
           } else {
               $sectionstring = "Sections ".join(' and ',@Sections);
           }
       } else {
           if ($Sections[0] eq 'all') {
               $sectionstring = "All sections";
           } else {
               $sectionstring = "Section ".$Sections[0];
           }
       }
       return $sectionstring;
   }
   
 ####################################################  ####################################################
 ####################################################  ####################################################
   
Removed from v.1.8  
changed lines
  Added in v.1.11

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