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Up to [LON-CAPA] / loncom / interface / statistics

- For 2.11
  - Reverse changes in 1.25 - they require "3.0" grading interface.

    1: # The LearningOnline Network with CAPA
    2: #
    3: # $Id: lonsurveyreports.pm,v 1.26.4.1 2012/05/12 03:59:53 raeburn Exp $
    4: #
    5: # Copyright Michigan State University Board of Trustees
    6: #
    7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    8: #
    9: # LON-CAPA is free software; you can redistribute it and/or modify
   10: # it under the terms of the GNU General Public License as published by
   11: # the Free Software Foundation; either version 2 of the License, or
   12: # (at your option) any later version.
   13: #
   14: # LON-CAPA is distributed in the hope that it will be useful,
   15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   17: # GNU General Public License for more details.
   18: #
   19: # You should have received a copy of the GNU General Public License
   20: # along with LON-CAPA; if not, write to the Free Software
   21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   22: #
   23: # /home/httpd/html/adm/gpl.txt
   24: #
   25: # http://www.lon-capa.org/
   26: #
   27: package Apache::lonsurveyreports;
   28: 
   29: use strict;
   30: use Apache::lonnet;
   31: use Apache::loncommon();
   32: use Apache::lonhtmlcommon();
   33: use Apache::loncoursedata();
   34: use Apache::lonstatistics;
   35: use Apache::lonlocal;
   36: use Apache::lonstathelpers;
   37: use Spreadsheet::WriteExcel;
   38: use HTML::Entities();
   39: use Time::Local();
   40: use lib '/home/httpd/lib/perl/';
   41: use LONCAPA;
   42:  
   43: 
   44: my @SubmitButtons = (
   45:                      { name => 'break'},
   46:                      { name => 'PrevProblem',
   47:                        text => 'Previous Survey' },
   48:                      { name => 'NextProblem',
   49:                        text => 'Next Survey' },
   50:                      { name => 'SelectAnother',
   51:                        text => 'Choose a different Survey' },
   52:                      { name => 'break'},
   53:                      { name => 'Generate',
   54:                        text => 'Generate Report'},
   55:                      );
   56: 
   57: sub BuildSurveyReportsPage {
   58:     my ($r,$c)=@_;
   59:     #
   60:     my %Saveable_Parameters = ('Status' => 'scalar',
   61:                                'Section' => 'array',
   62:                                'NumPlots' => 'scalar',
   63:                                );
   64:     &Apache::loncommon::store_course_settings('survey_reports',
   65:                                               \%Saveable_Parameters);
   66:     &Apache::loncommon::restore_course_settings('survey_reports',
   67:                                                 \%Saveable_Parameters);
   68:     #
   69:     &Apache::lonstatistics::PrepareClasslist();
   70:     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Student Submission Reports'));
   71: 
   72:     #
   73:     $r->print(&CreateInterface());
   74:     #
   75:     my @Students = @Apache::lonstatistics::Students;
   76:     #
   77:     if (@Students < 1) {
   78:         $r->print('<p class="LC_warning">'.&mt('There are no students in the sections selected.').'</p>');
   79:     }
   80:     #
   81:     my @CacheButtonHTML = 
   82:         &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
   83:     $r->rflush();
   84:     #
   85:     if (exists($env{'form.problemchoice'}) && 
   86:         ! exists($env{'form.SelectAnother'})) {
   87:         $r->print('&nbsp;'x3);
   88:         foreach my $button (@SubmitButtons) {
   89:             if ($button->{'name'} eq 'break') {
   90:                 $r->print("<br />\n");
   91:             } else {
   92:                 $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
   93:                           'value="'.&mt($button->{'text'}).'" />');
   94:                 $r->print('&nbsp;'x5);
   95:             }
   96:         }
   97:         foreach my $html (@CacheButtonHTML) {
   98:             $r->print($html.('&nbsp;'x5));
   99:         }
  100:         #
  101:         $r->print('<hr />');
  102:         $r->print('<h4>'.
  103:                   &Apache::lonlocal::locallocaltime(time).', '.
  104:                   &Apache::lonstatistics::section_and_enrollment_description().
  105:                   '</h4>');
  106:         $r->rflush();
  107:         #
  108:         # Determine which problem we are to analyze
  109:         my $current_problem = &Apache::lonstathelpers::get_target_from_id
  110:             ($env{'form.problemchoice'});
  111:         #
  112:         my ($navmap,$prev,$curr,$next) = 
  113:             &Apache::lonstathelpers::get_prev_curr_next($current_problem,
  114:                                                         '.',
  115:                                                         'part_survey',
  116:                                                         );
  117:         if (exists($env{'form.PrevProblem'}) && defined($prev)) {
  118:             $current_problem = $prev;
  119:         } elsif (exists($env{'form.NextProblem'}) && defined($next)) {
  120:             $current_problem = $next;
  121:         } else {
  122:             $current_problem = $curr;
  123:         }
  124:         #
  125:         # Store the current problem choice and send it out in the form
  126:         $env{'form.problemchoice'} = 
  127:             &Apache::lonstathelpers::make_target_id($current_problem);
  128:         $r->print('<input type="hidden" name="problemchoice" value="'.
  129:                   $env{'form.problemchoice'}.'" />');
  130:         #
  131:         if (! defined($current_problem->{'resource'})) {
  132:             $r->print('resource is undefined');
  133:         } else {
  134:             my $resource = $current_problem->{'resource'};
  135:             $r->print('<h1>'.$resource->compTitle.'</h1>');
  136:             $r->print('<h3>'.$resource->src.'</h3>');
  137:             if ($env{'form.renderprob'} eq 'true') {
  138:                 $r->print('<hr />'
  139:                          .&Apache::lonstathelpers::render_resource($resource)
  140:                          .'<hr />'
  141:                 );
  142:             }
  143:             $r->rflush();
  144:             my %Data = &Apache::lonstathelpers::get_problem_data
  145:                 ($resource->src);
  146:             &compile_student_answers($r,$current_problem,\%Data,\@Students);
  147:             if ($env{'form.output'} eq 'HTML' || 
  148:                 ! defined($env{'form.output'})) {
  149:                 &make_HTML_report($r,$current_problem,\%Data,\@Students);
  150:             } elsif ($env{'form.output'} eq 'Excel') {
  151:                 &make_Excel_report($r,$current_problem,\%Data,\@Students);
  152:             } elsif ($env{'form.output'} eq 'TXT') {
  153:                 &make_text_report($r,$current_problem,\%Data,\@Students);
  154:             }
  155:         }
  156:         $r->print('<hr />');
  157:     } else {
  158:         $r->print('<input type="submit" name="Generate" value="'.
  159:                   &mt('Generate Survey Report').'" />');
  160:         $r->print('&nbsp;'x5);
  161:         $r->print('<h3>'.&mt('Please select a Survey to analyze').'</h3>');
  162:         $r->print(&SurveyProblemSelector());
  163:     }
  164: }
  165: 
  166: ##########################################################
  167: ##########################################################
  168: ##
  169: ## SurveyProblemSelector
  170: ##
  171: ##########################################################
  172: ##########################################################
  173: sub SurveyProblemSelector {
  174:     my $Str = '';
  175:     my @SurveyProblems;
  176:     my ($navmap,@sequences) = 
  177:         &Apache::lonstatistics::selected_sequences_with_assessments('all');
  178:     foreach my $seq (@sequences) {
  179:         my @resources = &Apache::lonstathelpers::get_resources($navmap,$seq);
  180:         foreach my $res (@resources) {
  181:             foreach my $part (@{$res->parts}) {
  182:                 if (($res->is_survey($part)) || ($res->is_anonsurvey($part))) {
  183:                     push(@SurveyProblems,{res=>$res,seq=>$seq,part=>$part});
  184:                     last;
  185:                 }
  186:             }
  187:         }
  188:     }
  189:     if (! scalar(@SurveyProblems)) {
  190:         $Str = '<p class="LC_warning">'.
  191:             &mt('There are no survey problems in this course.').
  192:             '</p>'.$/;
  193:         return $Str;
  194:     }
  195:     $Str .= '<table>'.$/;
  196:     $Str .= '<tr>'.'<td></td>'.
  197:         '<th>'.&mt('Survey').'</th>'.
  198:         '</tr>'.$/;
  199:     my $id;
  200:     foreach my $problem (@SurveyProblems) {
  201:         $id++;
  202:         my $value = &Apache::lonstathelpers::make_target_id
  203:             ({symb=>$problem->{'res'}->symb,
  204:               part=>$problem->{'part'},
  205:               respid=>undef,
  206:               resptype=>undef});
  207:         my $checked = '';
  208:         if ($env{'form.problemchoice'} eq $value) {
  209:             $checked = 'checked="checked" ';
  210:         }
  211:         my $link = $problem->{'res'}->link.
  212:             '?symb='.&escape($problem->{'res'}->shown_symb);
  213:         $Str .= '<tr><td>'.
  214:             '<input type="radio" name="problemchoice" id="'.$id.'" '.
  215:                    'value="'.$value.'" '.$checked.'/>'.'</td>'.
  216:             '<td><span class="LC_nobreak">'.
  217:             '<label for="'.$id.'">'.$problem->{'res'}->compTitle.' ('.$problem->{'seq'}->compTitle.')'.'</label>'.
  218:             ('&nbsp;'x2).
  219:             '<a target="preview" href="'.$link.'">'.&mt('View survey').'</a></span></td></tr>'.$/;
  220:     }
  221:     $Str .= '</table>';
  222:     return $Str;
  223: }
  224: 
  225: #########################################################
  226: #########################################################
  227: ##
  228: ## Compile Student Answers
  229: ##
  230: #########################################################
  231: #########################################################
  232: sub compile_student_answers {
  233:     my ($r,$problem,$ProblemData,$Students) = @_;
  234:     my $resource = $problem->{'resource'};
  235:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,scalar(@$Students));
  236:     foreach my $student (@$Students) {
  237:         foreach my $partid (@{$resource->parts}) {
  238:             my @response_ids   = $resource->responseIds($partid);
  239:             my @response_types = $resource->responseType($partid);
  240:             for (my $i=0;$i<=$#response_ids;$i++) {
  241:                 my $respid = $response_ids[$i];
  242:                 my $resptype = $response_types[$i];
  243:                 my $results = 
  244:                     &Apache::loncoursedata::get_response_data_by_student
  245:                     ($student,$resource->symb,$respid);
  246:                 next if (! defined($results) || ref($results) ne 'ARRAY' || 
  247:                          ref($results->[0]) ne 'ARRAY');
  248:                 my $student_response = 
  249:                     $results->[0]->[&Apache::loncoursedata::RDs_submission()];
  250:                 $problem->{'responsedata'}->{$partid}->{$respid}->{'_count'}++;
  251:                 my $data = $problem->{'responsedata'}->{$partid}->{$respid};
  252:                 if ($resptype =~ /^(option|match)$/) {
  253:                     my @responses = split('&',$student_response);
  254:                     foreach my $response (@responses) {
  255:                         my ($foilid,$option) = 
  256:                             map { 
  257:                                 &unescape($_); 
  258:                             } split('=',$response);
  259:                         $data->{'foil_count'}->{$foilid}++;
  260:                         $data->{'foil_responses'}->{$foilid}->{$option}++;
  261:                     }
  262:                 } elsif ($resptype =~ /^(radiobutton)$/) {
  263:                     my ($foil,$value) = map { &unescape($_); } split('=',$student_response);
  264:                     $value += 1;  # explicitly increment it...
  265:                     $data->{'foil_responses'}->{$foil}++;
  266:                     $data->{'foil_values'}->{$value}++;
  267:                     if (! exists($data->{'map'}->{$value})) {
  268:                         $data->{'map'}->{$value} = $foil;
  269:                         $data->{'map_fv'}->{$foil} = $value;
  270:                     }
  271:                 } else {
  272:                     # Variable stuff (essays, raw numbers, strings) go here
  273:                     push(@{$data->{'responses'}},$student_response);
  274:                 }
  275:             }
  276:         }
  277:         &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
  278:     }
  279:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
  280:     return;
  281: }
  282: 
  283: 
  284: #########################################################
  285: #########################################################
  286: ##
  287: ## make_text_report
  288: ##
  289: #########################################################
  290: #########################################################
  291: sub make_text_report {
  292:     my ($r,$problem,$problem_data,$students) = @_;
  293:     my ($file,$filename) = &Apache::loncommon::create_text_file($r,'txt');
  294:     if (! defined($file)) { return '';}
  295:     $r->print('<script>'.
  296:               'window.document.Statistics.stats_status.value="'.
  297:               &mt('Building text document.').
  298:               '";</script>');
  299:     my $resource = $problem->{'resource'};
  300:     print $file $resource->compTitle.$/;
  301:     print $file &Apache::lonstatistics::section_and_enrollment_description().
  302:         ' '.&mt('Generated on [_1]',&Apache::lonlocal::locallocaltime(time)).
  303:         $/;
  304:     my $something_has_been_output = 0;
  305:     foreach my $partid (@{$resource->parts}) {
  306:         my @response_ids   = $resource->responseIds($partid);
  307:         my @response_types = $resource->responseType($partid);
  308:         for (my $i=0;$i<=$#response_ids;$i++) {
  309:             my $respid   = $response_ids[$i];
  310:             my $resptype = $response_types[$i];
  311:             my $data = $problem->{'responsedata'}->{$partid}->{$respid};
  312:             if (exists($data->{'responses'}) && 
  313:                 ref($data->{'responses'}) eq 'ARRAY') {
  314:                 # Essay type response
  315:                 print $file ('-'x40).$/;
  316:                 print $file 
  317:                     $resource->part_display($partid).', '.$respid.':'.$resptype.$/;
  318:                 foreach my $submission (@{$data->{'responses'}}) {
  319:                     print $file ('-'x20).$/;
  320:                     $submission =~ s/(\\r\\n|\\n)/\n/g;
  321:                     $submission =~ s/\\(\'|\"|\`)/$1/g;
  322:                     print $file $submission.$/.$/;
  323:                     $something_has_been_output=1;
  324:                 }
  325:             }
  326:         }
  327:     }
  328:     close($file);
  329:     if($something_has_been_output) {
  330:         $r->print('<p class="LC_info"><a href="'.$filename.'">'.
  331:                   &mt('Your text file').
  332:                   '</a></p>'."\n");
  333:         $r->print('<script>'.
  334:                   'window.document.Statistics.stats_status.value="'.
  335:                &mt('Done compiling text file. See link below to download.').
  336:                   '";</script>');
  337:     } else {
  338:         $r->print('<p class="LC_warning">'
  339:                  .&mt('There is no essay or string response data to output for this survey.')
  340:                  .'</p>');
  341:     }
  342:     $r->rflush();
  343:     return;
  344: }
  345: 
  346: 
  347: #########################################################
  348: #########################################################
  349: ##
  350: ## make_Excel_report
  351: ##
  352: #########################################################
  353: #########################################################
  354: sub make_Excel_report {
  355:     my ($r,$problem,$problem_data,$students) = @_;
  356:     my ($workbook,$filename,$format) = &Apache::loncommon::create_workbook($r);
  357:     if (! defined($workbook)) { return '';}
  358:     $r->print('<script>'.
  359:               'window.document.Statistics.stats_status.value="'.
  360:               &mt('Building spreadsheet.').
  361:               '";</script>');
  362:     my $worksheet  = $workbook->addworksheet('Survey Reports');
  363:     #
  364:     my $rows_output=0;
  365:     $worksheet->write($rows_output++,0,
  366:                     $env{'course.'.$env{'request.course.id'}.'.description'},
  367:                       $format->{'h1'});
  368:     $rows_output++;
  369:     #
  370:     my $resource = $problem->{'resource'};
  371:     $worksheet->write($rows_output++,0,$resource->compTitle,$format->{'h2'});
  372:     foreach my $partid (@{$resource->parts}) {
  373:         my @response_ids   = $resource->responseIds($partid);
  374:         my @response_types = $resource->responseType($partid);
  375:         for (my $i=0;$i<=$#response_ids;$i++) {
  376:             my $respid   = $response_ids[$i];
  377:             my $resptype = $response_types[$i];
  378:             my $data = $problem->{'responsedata'}->{$partid}->{$respid};
  379:             my $cols_output=0;
  380:             $worksheet->write($rows_output,$cols_output++,
  381:                               $resource->part_display($partid),$format->{'h3'});
  382:             $worksheet->write($rows_output,$cols_output++,
  383:                               'Response '.$respid.', '.$resptype,
  384:                               $format->{'h3'});
  385:             $rows_output++;
  386:             if (exists($data->{'responses'}) && 
  387:                 ref($data->{'responses'}) eq 'ARRAY') {
  388:                 my $warned_about_size = 0;
  389:                 foreach my $data (@{$data->{'responses'}}) {
  390:                     if (length($data) > 255 && ! $warned_about_size) {
  391:                         $r->print('<p class="LC_warning">'.
  392:                                   &mt('[_1]:[_2] responses to [_3] may be too long to fit Excel spreadsheet.',
  393:                                       $resource->compTitle,
  394:                                       $resource->part_display($partid),
  395:                                       $respid).
  396:                                   '</p>');
  397:                         $r->rflush();
  398:                         $warned_about_size=1;
  399:                     }
  400:                     $worksheet->write($rows_output++,0,$data);
  401:                 }
  402:             } elsif (exists($data->{'foil_count'}) && 
  403:                      exists($data->{'foil_responses'})) {
  404:                 my $respdata = $problem_data->{$partid.'.'.$respid};
  405:                 my @rowdata = ('Foil Name','Foil Text','Option',
  406:                                'Frequency');
  407:                 $worksheet->write_row($rows_output++,0,
  408:                                       \@rowdata,$format->{'h4'});
  409:                 #
  410: 		my @foils = sort(keys(%{$respdata->{'_Foils'}}));
  411:                 foreach my $foilid (@foils) {
  412:                     my $foil_count = $data->{'foil_count'}->{$foilid};
  413:                     my $foiltext = $respdata->{'_Foils'}->{$foilid}->{'text'};
  414:                     my $foilname = $respdata->{'_Foils'}->{$foilid}->{'name'};
  415:                     $foiltext = &HTML::Entities::decode($foilname);
  416:                     my $cols_output=0;
  417:                     $worksheet->write($rows_output,$cols_output++,$foilname);
  418:                     $worksheet->write($rows_output,$cols_output++,$foiltext);  
  419:                     my $option_start_col = $cols_output;
  420:                     #
  421:                     foreach my $option (sort(@{$respdata->{'_Options'}})){
  422:                         $cols_output= $option_start_col;
  423:                         $worksheet->write($rows_output,$cols_output++,
  424:                                           $option);
  425:                         my $count=
  426:                             $data->{'foil_responses'}->{$foilid}->{$option};
  427:                         $worksheet->write($rows_output,$cols_output++,$count);
  428:                         $rows_output++;
  429:                     }
  430:                 }
  431:             } elsif (exists($data->{'_count'})      && 
  432:                      exists($data->{'foil_values'}) && 
  433:                      exists($data->{'map'})) {
  434:                 my $respdata = $problem_data->{$partid.'.'.$respid};
  435:                 my @rowdata = ('Foil Name','Foil Text','Frequency');
  436:                 $worksheet->write_row($rows_output++,0,
  437:                                       \@rowdata,$format->{'h4'});
  438: 		my @foils = sort(keys(%{$respdata->{'_Foils'}}));
  439:                 foreach my $foilid (@foils) {
  440:                     undef(@rowdata);
  441:                     my $value = $data->{'map_fv'}->{$foilid};
  442:                     push(@rowdata,$respdata->{'_Foils'}->{$foilid}->{'name'});
  443:                     push(@rowdata,$respdata->{'_Foils'}->{$foilid}->{'text'});
  444:                     push(@rowdata,$data->{'foil_values'}->{$value});
  445:                     $worksheet->write_row($rows_output++,0,\@rowdata);
  446:                 }
  447:             }  
  448:             $rows_output++;
  449:         }    #response ids
  450:     }    # partids
  451:     $workbook->close();
  452:     $r->print('<p class="LC_info"><a href="'.$filename.'">'.
  453:               &mt('Your Excel spreadsheet.').
  454:               '</a></p>'."\n");
  455:     $r->print('<script>'.
  456:               'window.document.Statistics.stats_status.value="'.
  457:               &mt('Done compiling spreadsheet. See link below to download.').
  458:               '";</script>');
  459:     $r->rflush();
  460:     return;
  461: }
  462: 
  463: #########################################################
  464: #########################################################
  465: ##
  466: ## make_HTML_report
  467: ##
  468: #########################################################
  469: #########################################################
  470: sub make_HTML_report {
  471:     my ($r,$problem,$ProblemData,$Students) = @_;
  472:     my $resource = $problem->{'resource'};
  473:     foreach my $partid (@{$resource->parts}) {
  474:         my @response_ids   = $resource->responseIds($partid);
  475:         my @response_types = $resource->responseType($partid);
  476:         for (my $i=0;$i<=$#response_ids;$i++) {
  477:             my $Str = '<table>'.$/;
  478:             my $respid   = $response_ids[$i];
  479:             my $resptype = $response_types[$i];
  480:             my $data = $problem->{'responsedata'}->{$partid}->{$respid};
  481:             if (! defined($data) || ref($data) ne 'HASH') {
  482:                 next;
  483:             }
  484:             # Debugging code
  485: #            $Str .= '<tr>'.
  486: #                '<td>'.$partid.'</td>'.
  487: #                '<td>'.$respid.'</td>'.
  488: #                '<td>'.$resptype.'</td>'.
  489: #                '</tr>'.$/;
  490:             $Str .= '<tr>'.
  491:                 '<td><b>'.&mt('Total').'</b></td>'.
  492:                 '<td>'.$data->{'_count'}.'</td>'.
  493:                 '<td>'.&mt('Part [_1], Response [_2]',
  494: 			   $resource->part_display($partid),$respid).'</td>'.
  495:                 '</tr>';
  496:             if (exists($data->{'responses'}) && 
  497:                 ref($data->{'responses'}) eq 'ARRAY') {
  498:                 &randomize_array($data->{'responses'});
  499:                 foreach my $response (@{$data->{'responses'}}) {
  500:                     $response =~ s/\\r\\n/\n/g;
  501:                     $response =~ s/\\'/'/g;
  502:                     $response =~ s/\\"/"/g;
  503:                     $Str .= '<tr>'.
  504:                         '<td colspan="3"><pre>'.
  505:                         &HTML::Entities::encode($response,'<>&').
  506:                         '</pre><hr /></td>'.
  507:                         '</tr>'.$/;
  508:                 }
  509:             } elsif (exists($data->{'foil_count'}) && 
  510:                      exists($data->{'foil_responses'})) {
  511:                 $Str.='<tr>'
  512:                     .'<td colspan="3">'
  513:                     .&Apache::loncommon::start_data_table()
  514:                     .&Apache::loncommon::start_data_table_header_row();
  515:                 my $tmp = '<th>'.join('</th><th>',
  516:                                       (&mt('Foil Name'),
  517:                                        &mt('Foil Text'),
  518:                                        &mt('Option'),
  519:                                        &mt('Frequency'),
  520:                                        &mt('Percent'))).'</th>'
  521:                           .&Apache::loncommon::end_data_table_header_row();
  522: 		my @foils = sort(keys(%{$ProblemData->{$partid.'.'.$respid}->{'_Foils'}}));
  523:                 foreach my $foilid (@foils) {
  524:                     my $prob_data = $ProblemData->{$partid.'.'.$respid};
  525:                     my $foil_count = $data->{'foil_count'}->{$foilid};
  526:                     my $foiltext = $prob_data->{'_Foils'}->{$foilid}->{'text'};
  527:                     my $foilname = $prob_data->{'_Foils'}->{$foilid}->{'name'};
  528:                     my $rowspan = scalar(@{$prob_data->{'_Options'}});
  529:                     my $preamble = &Apache::loncommon::start_data_table_row().
  530:                         '<td valign="top" rowspan="'.$rowspan.'">'.
  531:                             $foilname.'</td>'.
  532:                         '<td valign="top" rowspan="'.$rowspan.'">'.
  533:                             $foiltext.'</td>';
  534:                     foreach my $option (sort(@{$prob_data->{'_Options'}})){
  535:                         my $count = 
  536:                             $data->{'foil_responses'}->{$foilid}->{$option};
  537:                         $tmp .= $preamble.
  538:                             '<td>'.$option.'</td>'.
  539:                             '<td align="right">'.$count.'</td>'.
  540:                             '<td align="right">'.
  541:                                 sprintf('%.2f',100*$count/$foil_count).'%'.
  542:                             '</td>'.&Apache::loncommon::end_data_table_row().$/;
  543:                         $preamble = &Apache::loncommon::continue_data_table_row(); #&Apache::loncommon::start_data_table_row();
  544:                     }
  545:                 }
  546:                 $Str.=$tmp.&Apache::loncommon::end_data_table()
  547:                      .'</td></tr>';
  548:             } elsif (exists($data->{'_count'})      && 
  549:                      exists($data->{'foil_values'}) && 
  550:                      exists($data->{'map'})) {
  551:                 # This is an option or radiobutton survey response
  552:                 my $total = $data->{'_count'};
  553:                 my $sum = 0;
  554:                 my $tmp;
  555: 		my @foils = sort(keys(%{$ProblemData->{$partid.'.'.$respid}
  556: 					            ->{'_Foils'}}));
  557:                 foreach my $foilid (@foils) {
  558:                     my $value = $data->{'map_fv'}->{$foilid};
  559:                     my $count = $data->{'foil_values'}->{$value};
  560:                     my $foiltext = $ProblemData->{$partid.'.'.$respid}->{'_Foils'}->{$foilid}->{'text'};
  561:                     my $foilname = $ProblemData->{$partid.'.'.$respid}->{'_Foils'}->{$foilid}->{'name'};
  562:                     $tmp .= &Apache::loncommon::start_data_table_row().
  563:                         '<td>'.$foilname.'</td>'.
  564:                         '<td>'.$foiltext.'</td>'.
  565:                         '<td align="right">'.$count.'</td>'.
  566:                         '<td align="right">'.
  567:                             sprintf("%.2f",$count/$total*100).'%</td>'.
  568:                         &Apache::loncommon::end_data_table_row().$/;
  569:                 }
  570:                 $Str.='<tr>'
  571:                      .'<td colspan="3">'
  572:                      .&Apache::loncommon::start_data_table()
  573:                      .&Apache::loncommon::start_data_table_header_row()
  574:                      .'<th>'.&mt('Foil Name').'</th>'
  575:                      .'<th>'.&mt('Text').'</th>'
  576:                      .'<th>'.&mt('Frequency').'</th>'
  577:                      .'<th>'.&mt('Percent').'</th>'
  578:                      .&Apache::loncommon::end_data_table_header_row().$/
  579:                      .$tmp
  580:                      .&Apache::loncommon::end_data_table()
  581:                      .'</td></tr>';
  582:             }
  583:             $Str.= '</table>';
  584:             $r->print($Str);
  585:             $r->rflush();
  586:         }
  587:     }
  588:     return;
  589: }
  590: 
  591: sub randomize_array {
  592:     # Fisher Yates shuffle, lifted from p 121 of "The Perl Cookbook"
  593:     my ($array) = @_;
  594:     for (my $i=scalar(@$array);--$i;) {
  595:         my $j = int(rand($i+1));
  596:         next if ($i == $j);
  597:         @$array[$i,$j]=@$array[$j,$i];
  598:     }
  599: }
  600: 
  601: #########################################################
  602: #########################################################
  603: ##
  604: ##   Generic Interface Routines
  605: ##
  606: #########################################################
  607: #########################################################
  608: sub CreateInterface {
  609:     ##
  610:     ## Environment variable initialization
  611:     my $Str = '';
  612:     my $output_selector = '<select name="output" size="5">'.$/;
  613:     if (! exists($env{'form.output'})) {
  614:         $env{'form.output'} = 'HTML';
  615:     }
  616:     foreach my $output_format ( {name=>'HTML',text=>&mt("HTML") },
  617:                                 {name=>'Excel',text=>&mt("Excel") },
  618:                                 {name=>'TXT',text=>&mt("Text (essays only)") },
  619:                                 ) {
  620:         $output_selector.='<option value="'.$output_format->{'name'}.'"';
  621:         if ($env{'form.output'} eq $output_format->{'name'}) {
  622:             $output_selector.=' selected="selected"';
  623:         }
  624:         $output_selector.= '>'.$output_format->{'text'}.'</option>'.$/;
  625:     }
  626:     $output_selector .= '</select>'.$/;
  627:     $Str .= '<p>';
  628:     $Str .= &Apache::loncommon::start_data_table();
  629:     $Str .= &Apache::loncommon::start_data_table_header_row();
  630:     $Str .= '<th>'.&mt('Sections').'</th>';
  631:     $Str .= '<th>'.&mt('Groups').'</th>';
  632:     $Str .= '<th>'.&mt('Access Status').'</th>';
  633:     $Str .= '<th>'.&mt('Output Format').'</th>';
  634:     $Str .= '<th>'.&mt('Options').'</th>';
  635:     $Str .= &Apache::loncommon::end_data_table_header_row();
  636:     #
  637:     $Str .= &Apache::loncommon::start_data_table_row();
  638:     $Str .= '<td align="center">'."\n";
  639:     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
  640:     $Str .= '</td>';
  641:     #
  642:     $Str .= '<td align="center">'."\n";
  643:     $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
  644:     $Str .= '</td>';
  645:     #
  646:     $Str .= '<td align="center">';
  647:     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
  648:     $Str .= '</td>';
  649:     #
  650:     $Str .= '<td align="center">'.$output_selector.'</td>';
  651:     #
  652:     # Render problem checkbox
  653:     my $prob_checkbox = '<input type="checkbox" name="renderprob" ';
  654:     if (exists($env{'form.renderprob'}) && $env{'form.renderprob'} eq 'true') {
  655:         $prob_checkbox .= 'checked="checked" ';
  656:     }
  657:     $prob_checkbox .= 'value="true" />';
  658:     $Str .=
  659:         '<td valign="top">'
  660:        .'<label>'
  661:        .$prob_checkbox.&mt('Show problem')
  662:        .'</label>'
  663:        .'</td>';
  664:     #
  665:     $Str .= &Apache::loncommon::end_data_table_row();
  666:     $Str .= &Apache::loncommon::end_data_table();
  667:     #
  668:     $Str .= '</p>';
  669:     ##
  670:     return $Str;
  671: }
  672: 
  673: 1;
  674: 
  675: __END__