File:  [LON-CAPA] / loncom / interface / statistics / lonsurveyreports.pm
Revision 1.13: download - view: text, annotated - select for diffs
Tue May 30 12:46:50 2006 UTC (18 years, 1 month ago) by www
Branches: MAIN
CVS tags: version_2_1_99_3, version_2_1_99_2, version_2_1_99_1, version_2_1_99_0, HEAD
&Apache::lonnet::unescape -> &unescape
&Apache::lonnet::escape -> &escape

    1: # The LearningOnline Network with CAPA
    2: #
    3: # $Id: lonsurveyreports.pm,v 1.13 2006/05/30 12:46:50 www 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_resports',
   67:                                                 \%Saveable_Parameters);
   68:     #
   69:     &Apache::lonstatistics::PrepareClasslist();
   70:     #
   71:     $r->print(&CreateInterface());
   72:     #
   73:     my @Students = @Apache::lonstatistics::Students;
   74:     #
   75:     if (@Students < 1) {
   76:         $r->print('<h2>There are no students in the sections selected</h2>');
   77:     }
   78:     #
   79:     my @CacheButtonHTML = 
   80:         &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
   81:     $r->rflush();
   82:     #
   83:     if (exists($env{'form.problemchoice'}) && 
   84:         ! exists($env{'form.SelectAnother'})) {
   85:         $r->print('&nbsp;'x3);
   86:         foreach my $button (@SubmitButtons) {
   87:             if ($button->{'name'} eq 'break') {
   88:                 $r->print("<br />\n");
   89:             } else {
   90:                 $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
   91:                           'value="'.&mt($button->{'text'}).'" />');
   92:                 $r->print('&nbsp;'x5);
   93:             }
   94:         }
   95:         foreach my $html (@CacheButtonHTML) {
   96:             $r->print($html.('&nbsp;'x5));
   97:         }
   98:         #
   99:         $r->print('<hr />');
  100:         $r->print('<h4>'.
  101:                   &Apache::lonlocal::locallocaltime(time).','.
  102:                   &Apache::lonstatistics::section_and_enrollment_description().
  103:                   '</h4>');
  104:         $r->rflush();
  105:         #
  106:         # Determine which problem we are to analyze
  107:         my $current_problem = &Apache::lonstathelpers::get_target_from_id
  108:             ($env{'form.problemchoice'});
  109:         #
  110:         my ($navmap,$prev,$curr,$next) = 
  111:             &Apache::lonstathelpers::get_prev_curr_next($current_problem,
  112:                                                         '.',
  113:                                                         'part_survey',
  114:                                                         );
  115:         if (exists($env{'form.PrevProblem'}) && defined($prev)) {
  116:             $current_problem = $prev;
  117:         } elsif (exists($env{'form.NextProblem'}) && defined($next)) {
  118:             $current_problem = $next;
  119:         } else {
  120:             $current_problem = $curr;
  121:         }
  122:         #
  123:         # Store the current problem choice and send it out in the form
  124:         $env{'form.problemchoice'} = 
  125:             &Apache::lonstathelpers::make_target_id($current_problem);
  126:         $r->print('<input type="hidden" name="problemchoice" value="'.
  127:                   $env{'form.problemchoice'}.'" />');
  128:         #
  129:         if (! defined($current_problem->{'resource'})) {
  130:             $r->print('resource is undefined');
  131:         } else {
  132:             my $resource = $current_problem->{'resource'};
  133:             $r->print('<h1>'.$resource->compTitle.'</h1>');
  134:             $r->print('<h3>'.$resource->src.'</h3>');
  135:             if ($env{'form.renderprob'} eq 'true') {
  136:                 $r->print(&Apache::lonstathelpers::render_resource($resource));
  137:             }
  138:             $r->rflush();
  139:             my %Data = &Apache::lonstathelpers::get_problem_data
  140:                 ($resource->src);
  141:             &compile_student_answers($r,$current_problem,\%Data,\@Students);
  142:             if ($env{'form.output'} eq 'HTML' || 
  143:                 ! defined($env{'form.output'})) {
  144:                 &make_HTML_report($r,$current_problem,\%Data,\@Students);
  145:             } elsif ($env{'form.output'} eq 'Excel') {
  146:                 &make_Excel_report($r,$current_problem,\%Data,\@Students);
  147:             } elsif ($env{'form.output'} eq 'TXT') {
  148:                 &make_text_report($r,$current_problem,\%Data,\@Students);
  149:             }
  150:         }
  151:         $r->print('<hr />');
  152:     } else {
  153:         $r->print('<input type="submit" name="Generate" value="'.
  154:                   &mt('Generate Survey Report').'" />');
  155:         $r->print('&nbsp;'x5);
  156:         $r->print('<h3>'.&mt('Please select a Survey to analyze').'</h3>');
  157:         $r->print(&SurveyProblemSelector());
  158:     }
  159: }
  160: 
  161: ##########################################################
  162: ##########################################################
  163: ##
  164: ## SurveyProblemSelector
  165: ##
  166: ##########################################################
  167: ##########################################################
  168: sub SurveyProblemSelector {
  169:     my $Str = '';
  170:     my @SurveyProblems;
  171:     my ($navmap,@sequences) = 
  172:         &Apache::lonstatistics::selected_sequences_with_assessments('all');
  173:     foreach my $seq (@sequences) {
  174:         my @resources = &Apache::lonstathelpers::get_resources($navmap,$seq);
  175:         foreach my $res (@resources) {
  176:             foreach my $part (@{$res->parts}) {
  177:                 if ($res->is_survey($part)) {
  178:                     push(@SurveyProblems,{res=>$res,seq=>$seq,part=>$part});
  179:                     last;
  180:                 }
  181:             }
  182:         }
  183:     }
  184:     if (! scalar(@SurveyProblems)) {
  185:         $Str = '<h1>'.
  186:             &mt('There are no survey problems in this course').
  187:             '</h1>'.$/;
  188:         return $Str;
  189:     }
  190:     $Str .= '<table>'.$/;
  191:     $Str .= '<tr>'.'<td></td>'.
  192:         '<th>'.&mt('Survey').'</th>'.
  193:         '</tr>'.$/;
  194:     my $id;
  195:     foreach my $problem (@SurveyProblems) {
  196:         $id++;
  197:         my $value = &Apache::lonstathelpers::make_target_id
  198:             ({symb=>$problem->{'res'}->symb,
  199:               part=>$problem->{'part'},
  200:               respid=>undef,
  201:               resptype=>undef});
  202:         my $checked = '';
  203:         if ($env{'form.problemchoice'} eq $value) {
  204:             $checked = 'checked ';
  205:         }
  206:         my $link = $problem->{'res'}->src.
  207:             '?symb='.&escape($problem->{'res'}->symb);
  208:         $Str .= '<tr><td>'.
  209:             '<input type="radio" name="problemchoice" id="'.$id.'" '.
  210:                    'value="'.$value.'" '.$checked.'/>'.'</td>'.
  211:             '<td><nobr>'.
  212:             '<label for="'.$id.'">'.$problem->{'res'}->compTitle.'('.$problem->{'seq'}->compTitle.')'.'</label>'.
  213:             ('&nbsp;'x2).
  214:             qq{<a target="preview" href="$link">view</a>}.'</td></tr>'.$/;
  215:     }
  216:     $Str .= '</table>';
  217:     return $Str;
  218: }
  219: 
  220: #########################################################
  221: #########################################################
  222: ##
  223: ## Compile Student Answers
  224: ##
  225: #########################################################
  226: #########################################################
  227: sub compile_student_answers {
  228:     my ($r,$problem,$ProblemData,$Students) = @_;
  229:     my $resource = $problem->{'resource'};
  230:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
  231:         ($r,'Processing Student Submissions',
  232:          'Processing Student Submissions', 
  233:          scalar(@$Students),'inline',undef,'Statistics','stats_status');
  234:     foreach my $student (@$Students) {
  235:         foreach my $partid (@{$resource->parts}) {
  236:             my @response_ids   = $resource->responseIds($partid);
  237:             my @response_types = $resource->responseType($partid);
  238:             for (my $i=0;$i<=$#response_ids;$i++) {
  239:                 my $respid = $response_ids[$i];
  240:                 my $resptype = $response_types[$i];
  241:                 my $results = 
  242:                     &Apache::loncoursedata::get_response_data_by_student
  243:                     ($student,$resource->symb,$respid);
  244:                 next if (! defined($results) || ref($results) ne 'ARRAY' || 
  245:                          ref($results->[0]) ne 'ARRAY');
  246:                 my $student_response = 
  247:                     $results->[0]->[&Apache::loncoursedata::RDs_submission()];
  248:                 $problem->{'responsedata'}->{$partid}->{$respid}->{'_count'}++;
  249:                 my $data = $problem->{'responsedata'}->{$partid}->{$respid};
  250:                 if ($resptype =~ /^(option|match)$/) {
  251:                     my @responses = split('&',$student_response);
  252:                     foreach my $response (@responses) {
  253:                         my ($foilid,$option) = 
  254:                             map { 
  255:                                 &unescape($_); 
  256:                             } split('=',$response);
  257:                         $data->{'foil_count'}->{$foilid}++;
  258:                         $data->{'foil_responses'}->{$foilid}->{$option}++;
  259:                     }
  260:                 } elsif ($resptype =~ /^(radiobutton)$/) {
  261:                     my ($foil,$value) = map { &unescape($_); } split('=',$student_response);
  262:                     $value += 1;  # explicitly increment it...
  263:                     $data->{'foil_responses'}->{$foil}++;
  264:                     $data->{'foil_values'}->{$value}++;
  265:                     if (! exists($data->{'map'}->{$value})) {
  266:                         $data->{'map'}->{$value} = $foil;
  267:                     }
  268:                 } else {
  269:                     # Variable stuff (essays, raw numbers, strings) go here
  270:                     push(@{$data->{'responses'}},$student_response);
  271:                 }
  272:             }
  273:         }
  274:         &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
  275:                                                  'last student');
  276:     }
  277:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
  278:     return;
  279: }
  280: 
  281: 
  282: #########################################################
  283: #########################################################
  284: ##
  285: ## make_text_report
  286: ##
  287: #########################################################
  288: #########################################################
  289: sub make_text_report {
  290:     my ($r,$problem,$problem_data,$students) = @_;
  291:     my ($file,$filename) = &Apache::loncommon::create_text_file($r,'txt');
  292:     if (! defined($file)) { return '';}
  293:     $r->print('<script>'.
  294:               'window.document.Statistics.stats_status.value="'.
  295:               &mt('Building text document.').
  296:               '";</script>');
  297:     my $resource = $problem->{'resource'};
  298:     print $file $resource->compTitle.$/;
  299:     print $file &Apache::lonstatistics::section_and_enrollment_description().
  300:         ' '.&mt('Generated on [_1]',&Apache::lonlocal::locallocaltime(time)).
  301:         $/;
  302:     my $something_has_been_output = 0;
  303:     foreach my $partid (@{$resource->parts}) {
  304:         my @response_ids   = $resource->responseIds($partid);
  305:         my @response_types = $resource->responseType($partid);
  306:         for (my $i=0;$i<=$#response_ids;$i++) {
  307:             my $respid   = $response_ids[$i];
  308:             my $resptype = $response_types[$i];
  309:             my $data = $problem->{'responsedata'}->{$partid}->{$respid};
  310:             if (exists($data->{'responses'}) && 
  311:                 ref($data->{'responses'}) eq 'ARRAY') {
  312:                 # Essay type response
  313:                 print $file ('-'x40).$/;
  314:                 print $file 
  315:                     $resource->part_display($partid).', '.$respid.':'.$resptype.$/;
  316:                 foreach my $submission (@{$data->{'responses'}}) {
  317:                     print $file ('-'x20).$/;
  318:                     $submission =~ s/(\\r\\n|\\n)/\n/g;
  319:                     $submission =~ s/\\(\'|\"|\`)/$1/g;
  320:                     print $file $submission.$/.$/;
  321:                     $something_has_been_output=1;
  322:                 }
  323:             }
  324:         }
  325:     }
  326:     close($file);
  327:     if($something_has_been_output) {
  328:         $r->print('<p><a href="'.$filename.'">'.
  329:                   &mt('Your text file.').
  330:                   '</a></p>'."\n");
  331:         $r->print('<script>'.
  332:                   'window.document.Statistics.stats_status.value="'.
  333:                &mt('Done compiling text file.  See link below to download.').
  334:                   '";</script>');
  335:     } else {
  336:         $r->print('<h2>'.
  337:                   &mt("There is no essay or string response data to output for this survey.").'</h2>');
  338:     }
  339:     $r->rflush();
  340:     return;
  341: }
  342: 
  343: 
  344: #########################################################
  345: #########################################################
  346: ##
  347: ## make_Excel_report
  348: ##
  349: #########################################################
  350: #########################################################
  351: sub make_Excel_report {
  352:     my ($r,$problem,$problem_data,$students) = @_;
  353:     my ($workbook,$filename,$format) = &Apache::loncommon::create_workbook($r);
  354:     if (! defined($workbook)) { return '';}
  355:     $r->print('<script>'.
  356:               'window.document.Statistics.stats_status.value="'.
  357:               &mt('Building spreadsheet.').
  358:               '";</script>');
  359:     my $worksheet  = $workbook->addworksheet('Survey Reports');
  360:     #
  361:     my $rows_output=0;
  362:     $worksheet->write($rows_output++,0,
  363:                     $env{'course.'.$env{'request.course.id'}.'.description'},
  364:                       $format->{'h1'});
  365:     $rows_output++;
  366:     #
  367:     my $resource = $problem->{'resource'};
  368:     $worksheet->write($rows_output++,0,$resource->compTitle,$format->{'h2'});
  369:     foreach my $partid (@{$resource->parts}) {
  370:         my @response_ids   = $resource->responseIds($partid);
  371:         my @response_types = $resource->responseType($partid);
  372:         for (my $i=0;$i<=$#response_ids;$i++) {
  373:             my $respid   = $response_ids[$i];
  374:             my $resptype = $response_types[$i];
  375:             my $data = $problem->{'responsedata'}->{$partid}->{$respid};
  376:             my $cols_output=0;
  377:             $worksheet->write($rows_output,$cols_output++,
  378:                               $resource->part_display($partid),$format->{'h3'});
  379:             $worksheet->write($rows_output,$cols_output++,
  380:                               'Response '.$respid.', '.$resptype,
  381:                               $format->{'h3'});
  382:             $rows_output++;
  383:             if (exists($data->{'responses'}) && 
  384:                 ref($data->{'responses'}) eq 'ARRAY') {
  385:                 my $warned_about_size = 0;
  386:                 foreach my $data (@{$data->{'responses'}}) {
  387:                     if (length($data) > 255 && ! $warned_about_size) {
  388:                         $r->print('<p>'.
  389:                                   &mt('[_1]:[_2] responses to  [_3] may be too long to fit Excel spreadsheet.',
  390:                                       $resource->compTitle,
  391:                                       $resource->part_display($partid),
  392:                                       $respid).
  393:                                   '</p>');
  394:                         $r->rflush();
  395:                         $warned_about_size=1;
  396:                     }
  397:                     $worksheet->write($rows_output++,0,$data);
  398:                 }
  399:             } elsif (exists($data->{'foil_count'}) && 
  400:                      exists($data->{'foil_responses'})) {
  401:                 my $respdata = $problem_data->{$partid.'.'.$respid};
  402:                 my @rowdata = ('Foil Name','Foil Text','Option',
  403:                                'Frequency');
  404:                 $worksheet->write_row($rows_output++,0,
  405:                                       \@rowdata,$format->{'h4'});
  406:                 #
  407:                 my @foils = sort(keys(%{$data->{'foil_responses'}}));
  408:                 foreach my $foilid (@foils) {
  409:                     my $foil_count = $data->{'foil_count'}->{$foilid};
  410:                     my $foiltext = $respdata->{'_Foils'}->{$foilid}->{'text'};
  411:                     my $foilname = $respdata->{'_Foils'}->{$foilid}->{'name'};
  412:                     $foiltext = &HTML::Entities::decode($foilname);
  413:                     my $cols_output=0;
  414:                     $worksheet->write($rows_output,$cols_output++,$foilname);
  415:                     $worksheet->write($rows_output,$cols_output++,$foiltext);  
  416:                     my $option_start_col = $cols_output;
  417:                     #
  418:                     foreach my $option (sort(@{$respdata->{'_Options'}})){
  419:                         $cols_output= $option_start_col;
  420:                         $worksheet->write($rows_output,$cols_output++,
  421:                                           $option);
  422:                         my $count=
  423:                             $data->{'foil_responses'}->{$foilid}->{$option};
  424:                         $worksheet->write($rows_output,$cols_output++,$count);
  425:                         $rows_output++;
  426:                     }
  427:                 }
  428:             } elsif (exists($data->{'_count'})      && 
  429:                      exists($data->{'foil_values'}) && 
  430:                      exists($data->{'map'})) {
  431:                 my $respdata = $problem_data->{$partid.'.'.$respid};
  432:                 my @rowdata = ('Foil Name','Foil Text','Frequency');
  433:                 $worksheet->write_row($rows_output++,0,
  434:                                       \@rowdata,$format->{'h4'});
  435:                 foreach my $value (sort(keys(%{$data->{'foil_values'}}))) {
  436:                     undef(@rowdata);
  437:                     my $foilid = $data->{'map'}->{$value};
  438:                     push(@rowdata,$respdata->{'_Foils'}->{$foilid}->{'name'});
  439:                     push(@rowdata,$respdata->{'_Foils'}->{$foilid}->{'text'});
  440:                     push(@rowdata,$data->{'foil_values'}->{$value});
  441:                     $worksheet->write_row($rows_output++,0,\@rowdata);
  442:                 }
  443:             }  
  444:             $rows_output++;
  445:         }    #response ids
  446:     }    # partids
  447:     $workbook->close();
  448:     $r->print('<p><a href="'.$filename.'">'.
  449:               &mt('Your Excel spreadsheet.').
  450:               '</a></p>'."\n");
  451:     $r->print('<script>'.
  452:               'window.document.Statistics.stats_status.value="'.
  453:               &mt('Done compiling spreadsheet.  See link below to download.').
  454:               '";</script>');
  455:     $r->rflush();
  456:     return;
  457: }
  458: 
  459: #########################################################
  460: #########################################################
  461: ##
  462: ## make_HTML_report
  463: ##
  464: #########################################################
  465: #########################################################
  466: sub make_HTML_report {
  467:     my ($r,$problem,$ProblemData,$Students) = @_;
  468:     my $resource = $problem->{'resource'};
  469:     foreach my $partid (@{$resource->parts}) {
  470:         my @response_ids   = $resource->responseIds($partid);
  471:         my @response_types = $resource->responseType($partid);
  472:         for (my $i=0;$i<=$#response_ids;$i++) {
  473:             my $Str = '<table>'.$/;
  474:             my $respid   = $response_ids[$i];
  475:             my $resptype = $response_types[$i];
  476:             my $data = $problem->{'responsedata'}->{$partid}->{$respid};
  477:             if (! defined($data) || ref($data) ne 'HASH') {
  478:                 next;
  479:             }
  480:             # Debugging code
  481: #            $Str .= '<tr>'.
  482: #                '<td>'.$partid.'</td>'.
  483: #                '<td>'.$respid.'</td>'.
  484: #                '<td>'.$resptype.'</td>'.
  485: #                '</tr>'.$/;
  486:             $Str .= '<tr>'.
  487:                 '<td><b>'.&mt('Total').'</b></td>'.
  488:                 '<td>'.$data->{'_count'}.'</td>'.
  489:                 '<td>'.&mt('Part [_1], Response [_2]',
  490: 			   $resource->part_display($partid),$respid).'</td>'.
  491:                 '</tr>';
  492:             if (exists($data->{'responses'}) && 
  493:                 ref($data->{'responses'}) eq 'ARRAY') {
  494:                 &randomize_array($data->{'responses'});
  495:                 foreach my $response (@{$data->{'responses'}}) {
  496:                     $response =~ s/\\r\\n/\n/g;
  497:                     $response =~ s/\\'/'/g;
  498:                     $response =~ s/\\"/"/g;
  499:                     $Str .= '<tr>'.
  500:                         '<td colspan="3"><pre>'.
  501:                         &HTML::Entities::encode($response,'<>&').
  502:                         '</pre><hr /></td>'.
  503:                         '</tr>'.$/;
  504:                 }
  505:             } elsif (exists($data->{'foil_count'}) && 
  506:                      exists($data->{'foil_responses'})) {
  507:                 $Str.='<tr><td colspan="3">'.
  508:                     '<table><tr>';
  509:                 my $tmp = '<th>'.join('</th><th>',
  510:                                       (&mt('Foil Name'),
  511:                                        &mt('Foil Text'),
  512:                                        &mt('Option'),
  513:                                        &mt('Frequency'),
  514:                                        &mt('Percent'))).'</th></tr>';
  515:                 my @foils = sort(keys(%{$data->{'foil_responses'}}));
  516:                 foreach my $foilid (@foils) {
  517:                     my $prob_data = $ProblemData->{$partid.'.'.$respid};
  518:                     my $foil_count = $data->{'foil_count'}->{$foilid};
  519:                     my $foiltext = $prob_data->{'_Foils'}->{$foilid}->{'text'};
  520:                     my $foilname = $prob_data->{'_Foils'}->{$foilid}->{'name'};
  521:                     my $rowspan = scalar(@{$prob_data->{'_Options'}});
  522:                     my $preamble = '<tr>'.
  523:                         '<td valign="top" rowspan="'.$rowspan.'">'.
  524:                             $foilname.'</td>'.
  525:                         '<td valign="top" rowspan="'.$rowspan.'">'.
  526:                             $foiltext.'</td>';
  527:                     foreach my $option (sort(@{$prob_data->{'_Options'}})){
  528:                         my $count = 
  529:                             $data->{'foil_responses'}->{$foilid}->{$option};
  530:                         $tmp .= $preamble.
  531:                             '<td>'.$option.'</td>'.
  532:                             '<td align="right">'.$count.'</td>'.
  533:                             '<td align="right">'.
  534:                                 sprintf('%.2f',100*$count/$foil_count).'%'.
  535:                             '</td></tr>'.$/;
  536:                         $preamble = '<tr>';
  537:                     }
  538:                 }
  539:                 $Str.=$tmp.'</table></td></tr>';
  540:             } elsif (exists($data->{'_count'})      && 
  541:                      exists($data->{'foil_values'}) && 
  542:                      exists($data->{'map'})) {
  543:                 # This is an option or radiobutton survey response
  544:                 my $total = $data->{'_count'};
  545:                 my $sum = 0;
  546:                 my $tmp;
  547:                 foreach my $value (sort(keys(%{$data->{'foil_values'}}))) {
  548:                     my $count = $data->{'foil_values'}->{$value};
  549:                     my $foilid = $data->{'map'}->{$value};
  550:                     my $foiltext = $ProblemData->{$partid.'.'.$respid}->{'_Foils'}->{$foilid}->{'text'};
  551:                     my $foilname = $ProblemData->{$partid.'.'.$respid}->{'_Foils'}->{$foilid}->{'name'};
  552:                     $tmp .= '<tr>'.
  553:                         '<td>'.$foilname.'</td>'.
  554:                         '<td>'.$foiltext.'</td>'.
  555:                         '<td align="right">'.$count.'</td>'.
  556:                         '<td align="right">'.
  557:                             sprintf("%.2f",$count/$total*100).'%</td>'.
  558:                         '</tr>'.$/;
  559:                 }
  560:                 $Str .= '<tr>'.
  561:                     '<th>'.&mt('Foil Name').'</th>'.
  562:                     '<th>'.&mt('Text').'</th>'.
  563:                     '<th>'.&mt('Freq').'</th>'.
  564:                     '<th>'.&mt('Percent').'</th>'.
  565:                     '</tr>'.$/.
  566:                     $tmp;
  567:             }
  568:             $Str.= '</table><hr />';
  569:             $r->print($Str);
  570:             $r->rflush();
  571:         }
  572:     }
  573:     return;
  574: }
  575: 
  576: sub randomize_array {
  577:     # Fisher Yates shuffle, lifted from p 121 of "The Perl Cookbook"
  578:     my ($array) = @_;
  579:     for (my $i=scalar(@$array);--$i;) {
  580:         my $j = int(rand($i+1));
  581:         next if ($i == $j);
  582:         @$array[$i,$j]=@$array[$j,$i];
  583:     }
  584: }
  585: 
  586: #########################################################
  587: #########################################################
  588: ##
  589: ##   Generic Interface Routines
  590: ##
  591: #########################################################
  592: #########################################################
  593: sub CreateInterface {
  594:     ##
  595:     ## Environment variable initialization
  596:     my $Str = '';
  597:     my $output_selector = '<select name="output" size="5">'.$/;
  598:     if (! exists($env{'form.output'})) {
  599:         $env{'form.output'} = 'HTML';
  600:     }
  601:     foreach my $output_format ( {name=>'HTML',text=>&mt("HTML") },
  602:                                 {name=>'Excel',text=>&mt("Excel") },
  603:                                 {name=>'TXT',text=>&mt("Text (essays only)") },
  604:                                 ) {
  605:         $output_selector.='<option value="'.$output_format->{'name'}.'"';
  606:         if ($env{'form.output'} eq $output_format->{'name'}) {
  607:             $output_selector.=' selected';
  608:         }
  609:         $output_selector.= '>'.$output_format->{'text'}.'</option>'.$/;
  610:     }
  611:     $output_selector .= '</select>'.$/;
  612:     $Str .= &Apache::lonhtmlcommon::breadcrumbs('Student Submission Reports');
  613:     $Str .= '<p>';
  614:     $Str .= '<table cellspacing="5">'."\n";
  615:     $Str .= '<tr>';
  616:     $Str .= '<th>'.&mt('Sections').'</th>';
  617:     $Str .= '<th>'.&mt('Groups').'</th>';
  618:     $Str .= '<th>'.&mt('Enrollment Status').'</th>';
  619:     $Str .= '<th>'.&mt('Output Format').'</th>';
  620:     $Str .= '<th>'.'&nbsp;'.'</th>';
  621:     $Str .= '</tr>'."\n";
  622:     #
  623:     $Str .= '<tr><td align="center">'."\n";
  624:     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
  625:     $Str .= '</td>';
  626:     #
  627:     $Str .= '<td align="center">'."\n";
  628:     $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
  629:     $Str .= '</td>';
  630:     #
  631:     $Str .= '<td align="center">';
  632:     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
  633:     $Str .= '</td>';
  634:     #
  635:     $Str .= '<td align="center">'.$output_selector.'</td>';
  636:     #
  637:     # Render problem checkbox
  638:     my $prob_checkbox = '<input type="checkbox" name="renderprob" ';
  639:     if (exists($env{'form.renderprob'}) && $env{'form.renderprob'} eq 'true') {
  640:         $prob_checkbox .= 'checked ';
  641:     }
  642:     $prob_checkbox .= 'value="true" />';
  643:     $Str .= '<td align="right" valign="top">'.
  644:         '<label><b>'.
  645:         &mt('Show problem [_1]',$prob_checkbox).'</b></label><br />'.
  646:         '<label><b>'.
  647:         '</td>';
  648:     #
  649:     $Str .= '</tr>'."\n";
  650:     $Str .= '</table>'."\n";
  651:     #
  652:     $Str .= '<nobr>'.&mt('Status: [_1]',
  653:                          '<input type="text" '.
  654:                          'name="stats_status" size="60" value="" />').
  655:             '</nobr>'.'</p>';    
  656:     ##
  657:     return $Str;
  658: }
  659: 
  660: 1;
  661: 
  662: __END__

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