'."\n";
+=over 4
- return $Str;
-}
+=item $Statistics Hash ref to store student data. Indexed by symb,
+ contains hashes with keys 'score' and 'max'.
-=pod
+=cut
-=item &FormatStudentData()
+#######################################################
+#######################################################
-First, FormatStudentInformation is called and prefixes the course information.
-This function produces a formatted string of the student's course information.
-Each column of data represents all the problems for a given sequence. For
-valid grade data, a link is created for that problem to a submission record
-for that problem.
+my $Statistics;
-=over 4
+#######################################################
+#######################################################
-Input: $name, $studentInformation, $ChartDB
+=pod
-$name: The name and domain of the current student in name:domain format
+=item $show_links 'yes' or 'no' for linking to student performance data
-$studentInformation: A pointer to an array holding the names used to
-remove data from the hash. They represent
-the name of the data to be removed.
+=item $output_mode 'html', 'excel', or 'csv' for output mode
-$ChartDB: The name of the cached data database which will be tied to that
-database.
+=item $show 'all' or 'totals' determines how much data is output
-Output: $Str
+=cut
-$Str: Formatted string that is an entire row of the chart. It is a
-concatenation of student information and student course information.
+#######################################################
+#######################################################
+my $show_links;
+my $output_mode;
+my $show;
+
+#######################################################
+#######################################################
+# End of package variable declarations
+
+=pod
=back
=cut
-sub StudentReport {
- my ($cache,$name,$spacing,$showSequences)=@_;
- my ($username,$domain)=split(':',$name);
+#######################################################
+#######################################################
- my $Str = '';
- if($cache->{$name.':error'} =~ /course/) {
- $Str .= 'No course data for student ';
- $Str .= ''.$username.'. ';
- return $Str;
- }
-
- my $Version;
- my $problemsCorrect = 0;
- my $totalProblems = 0;
- my $problemsSolved = 0;
- my $numberOfParts = 0;
-# foreach my $sequence (split(':', $cache->{'orderedSequences'})) {
- foreach my $sequence (@$showSequences) {
- my $characterCount=0;
- foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
- my $problem = $cache->{$problemID.':problem'};
- my $LatestVersion = $cache->{$name.':version:'.$problem};
-
- # Output dashes for all the parts of this problem if there
- # is no version information about the current problem.
- if(!$LatestVersion) {
- foreach my $part (split(/\:/,$cache->{$sequence.':'.
- $problemID.
- ':parts'})) {
- $Str .= ' ';
- $totalProblems++;
- $characterCount++;
- }
- next;
- }
+=pod
- my %partData=undef;
- # Initialize part data, display skips correctly
- # Skip refers to when a student made no submissions on that
- # part/problem.
- foreach my $part (split(/\:/,$cache->{$sequence.':'.
- $problemID.
- ':parts'})) {
- $partData{$part.':tries'}=0;
- $partData{$part.':code'}=' ';
- }
+=item &BuildStudentAssessmentPage()
- # Looping through all the versions of each part, starting with the
- # oldest version. Basically, it gets the most recent
- # set of grade data for each part.
- for(my $Version=1; $Version<=$LatestVersion; $Version++) {
- foreach my $part (split(/\:/,$cache->{$sequence.':'.
- $problemID.
- ':parts'})) {
-
- if(!defined($cache->{$name.":$Version:$problem".
- ":resource.$part.solved"})) {
- # No grade for this submission, so skip
- next;
- }
+Inputs:
- my $tries=0;
- my $code=' ';
+=over 4
- $tries = $cache->{$name.':'.$Version.':'.$problem.
- ':resource.'.$part.'.tries'};
- $partData{$part.':tries'}=($tries) ? $tries : 0;
-
- my $val = $cache->{$name.':'.$Version.':'.$problem.
- ':resource.'.$part.'.solved'};
- if ($val eq 'correct_by_student') {$code = '*';}
- elsif ($val eq 'correct_by_override') {$code = '+';}
- elsif ($val eq 'incorrect_attempted') {$code = '.';}
- elsif ($val eq 'incorrect_by_override'){$code = '-';}
- elsif ($val eq 'excused') {$code = 'x';}
- elsif ($val eq 'ungraded_attempted') {$code = '#';}
- else {$code = ' ';}
- $partData{$part.':code'}=$code;
- }
- }
+=item $r Apache Request
- # All grades (except for versionless parts) are displayed as links
- # to their submission record. Loop through all the parts for the
- # current problem in the correct order and prepare the output links
- $Str .= '';
- foreach(split(/\:/,$cache->{$sequence.':'.$problemID.
- ':parts'})) {
- if($partData{$_.':code'} eq '*') {
- $problemsCorrect++;
- if (($partData{$_.':tries'}<10) &&
- ($partData{$_.':tries'} ne '')) {
- $partData{$_.':code'}=$partData{$_.':tries'};
- }
- } elsif($partData{$_.':code'} eq '+') {
- $problemsCorrect++;
- }
+=item $c Apache Connection
- $Str .= $partData{$_.':code'};
- $characterCount++;
+=back
- if($partData{$_.':code'} ne 'x') {
- $totalProblems++;
- }
- }
- $Str.='';
+=cut
+
+#######################################################
+#######################################################
+sub BuildStudentAssessmentPage {
+ my ($r,$c)=@_;
+ undef($Statistics);
+ #
+ # Print out the HTML headers for the interface
+ # This also parses the output mode selector
+ # This step must always be done.
+ $r->print(&CreateInterface());
+ $r->print('');
+ $r->rflush();
+ if (! exists($ENV{'form.notfirstrun'})) {
+ $r->print(<
+
+Please make your selections in the boxes above and hit
+the button marked "Update Display".
+
+
+ENDMSG
+ return;
+ }
+ #
+ #
+ my $initialize = \&html_initialize;
+ my $output_student = \&html_outputstudent;
+ my $finish = \&html_finish;
+ #
+ if ($output_mode eq 'excel') {
+ $initialize = \&excel_initialize;
+ $output_student = \&excel_outputstudent;
+ $finish = \&excel_finish;
+ } elsif ($output_mode eq 'csv') {
+ $initialize = \&csv_initialize;
+ $output_student = \&csv_outputstudent;
+ $finish = \&csv_finish;
+ }
+ #
+ if($c->aborted()) { return ; }
+ #
+ # Call the initialize routine selected above
+ $initialize->($r);
+ foreach my $student (@Apache::lonstatistics::Students) {
+ if($c->aborted()) {
+ $finish->($r);
+ return ;
}
+ # Call the output_student routine selected above
+ $output_student->($r,$student);
+ }
+ # Call the "finish" routine selected above
+ $finish->($r);
+ #
+ return;
+}
- # Output the number of correct answers for the current sequence.
- # This part takes up 6 character slots, but is formated right
- # justified.
- my $spacesNeeded=$cache->{$sequence.':columnWidth'}-$characterCount;
- $spacesNeeded -= 3;
- $Str .= (' 'x$spacesNeeded);
-
- my $outputProblemsCorrect = sprintf( "%3d", $problemsCorrect );
- $Str .= ''.$outputProblemsCorrect.'';
- $problemsSolved += $problemsCorrect;
- $problemsCorrect=0;
-
- $Str .= $spacing;
- }
-
- # Output the total correct problems over the total number of problems.
- # I don't like this type of formatting, but it is a solution. Need
- # a way to dynamically determine the space requirements.
- my $outputProblemsSolved = sprintf( "%4d", $problemsSolved );
- my $outputTotalProblems = sprintf( "%4d", $totalProblems );
- $Str .= ''.$outputProblemsSolved.
- ' / '.$outputTotalProblems.'';
+#######################################################
+#######################################################
- return $Str;
+sub get_student_fields_to_show {
+ my @to_show = @Apache::lonstatistics::SelectedStudentData;
+ foreach (@to_show) {
+ if ($_ eq 'all') {
+ @to_show = @Apache::lonstatistics::StudentDataOrder;
+ last;
+ }
+ }
+ return @to_show;
+}
+
+sub get_sequences_to_show {
+ my @Sequences;
+ foreach my $map_symb (@Apache::lonstatistics::SelectedMaps) {
+ foreach my $sequence (@Apache::lonstatistics::Sequences) {
+ next if ($sequence->{'symb'} ne $map_symb && $map_symb ne 'all');
+ next if ($sequence->{'num_assess'} < 1);
+ push (@Sequences,$sequence);
+ }
+ }
+ return @Sequences;
}
+
+#######################################################
+#######################################################
+
=pod
-=item &CreateLegend()
+=item &CreateInterface()
-This function returns a formatted string containing the legend for the
-chart. The legend describes the symbols used to represent grades for
-problems.
+Called by &BuildStudentAssessmentPage to create the top part of the
+page which displays the chart.
+
+Inputs: None
+
+Returns: A string containing the HTML for the headers and top table for
+the chart page.
=cut
-sub CreateLegend {
- my $Str = "
".
- "1..9: correct by student in 1..9 tries\n".
- " *: correct by student in more than 9 tries\n".
- " +: correct by override\n".
- " -: incorrect by override\n".
- " .: incorrect attempted\n".
- " #: ungraded attempted\n".
- " : not attempted\n".
- " x: excused".
- "
'."\n";
return $Str;
}
+#######################################################
+#######################################################
+
=pod
-=item &CreateColumnSelectionBox()
+=item &CreateAndParseOutputSelector()
-If there are columns not being displayed then this selection box is created
-with a list of those columns. When selections are made and the page
-refreshed, the columns will be removed from this box and the column is
-put back in the chart. If there is no columns to select, no row is added
-to the interface table.
+=cut
-=over 4
-Input: $CacheData, $headings
+#######################################################
+#######################################################
+sub CreateAndParseOutputSelector {
+ my $Str = '';
+ my $elementname = 'outputmode';
+ #
+ # Format for output options is 'mode, restrictions';
+ my @Options = ('html, with links','html, without links',
+ 'html, totals only','excel, totals only',
+ 'csv, totals only','csv, everything');
+ my $selected = 'html, with links';
+ if (exists($ENV{'form.'.$elementname})) {
+ if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
+ $selected = $ENV{'form.'.$elementname}->[0];
+ } else {
+ $selected = $ENV{'form.'.$elementname};
+ }
+ }
+ #
+ # Set package variables describing output mode
+ $show_links = 'no';
+ $output_mode = 'html';
+ $show = 'all';
+ my ($mode,$restriction) = split(',',$selected);
+ $restriction =~ s/^\s*//;
+ if ($mode =~ /^(html|excel|csv)$/) {
+ $output_mode = $mode;
+ } else {
+ $output_mode = 'html';
+ }
+ if ($restriction eq 'with links') {
+ $show_links = 'yes';
+ } else {
+ $show_links = 'no';
+ }
+ if ($restriction eq 'totals only') {
+ $show = 'totals';
+ } else {
+ $show = 'everything';
+ }
+ #
+ # Build the form element
+ $Str = qq/