Annotation of loncom/interface/lonstatistics.pm, revision 1.125

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: #
1.125   ! albertel    3: # $Id: lonstatistics.pm,v 1.124 2005/04/07 07:34:52 albertel Exp $
1.1       albertel    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: # (Navigate problems for statistical reports
1.14      minaeibi   28: #
1.1       albertel   29: ###
                     30: 
1.59      matthew    31: =pod
                     32: 
                     33: =head1 NAME
                     34: 
                     35: lonstatistics
                     36: 
                     37: =head1 SYNOPSIS
                     38: 
                     39: Main handler for statistics and chart.
                     40: 
                     41: =over 4
                     42: 
                     43: =cut
                     44: 
1.55      minaeibi   45: package Apache::lonstatistics;
1.1       albertel   46: 
1.30      stredwic   47: use strict;
1.1       albertel   48: use Apache::Constants qw(:common :http);
1.61      matthew    49: use vars qw(
                     50:     @FullClasslist 
                     51:     @Students
                     52:     @Sections 
                     53:     %StudentData
                     54:     @StudentDataOrder
                     55:     @SelectedStudentData
1.94      matthew    56:     $enrollment_status);
1.61      matthew    57: 
1.123     albertel   58: use Apache::lonnet;
1.1       albertel   59: use Apache::lonhomework;
1.12      minaeibi   60: use Apache::loncommon;
1.29      stredwic   61: use Apache::loncoursedata;
                     62: use Apache::lonhtmlcommon;
1.97      matthew    63: use Apache::lonmysql;
                     64: use Apache::lonlocal;
                     65: use Time::HiRes;
                     66: #
                     67: # Statistics Packages
1.61      matthew    68: use Apache::lonproblemanalysis();
1.89      matthew    69: use Apache::lonsubmissiontimeanalysis();
1.94      matthew    70: use Apache::loncorrectproblemplot();
1.61      matthew    71: use Apache::lonproblemstatistics();
                     72: use Apache::lonstudentassessment();
1.49      stredwic   73: use Apache::lonpercentage;
1.97      matthew    74: use Apache::lonstudentsubmissions();
1.104     matthew    75: use Apache::lonsurveyreports();
1.60      matthew    76: 
                     77: #######################################################
                     78: #######################################################
                     79: 
                     80: =pod
                     81: 
                     82: =item Package Variables
                     83: 
                     84: =item @FullClasslist The full classlist
                     85: 
                     86: =item @Students The students we are concerned with for this invocation
                     87: 
                     88: =item @Sections The sections available in this class
                     89: 
                     90: =item $curr_student The student currently being examined
                     91: 
                     92: =item $prev_student The student previous in the classlist
                     93: 
                     94: =item $next_student The student next in the classlist
                     95: 
                     96: =over
                     97: 
                     98: =cut 
                     99: 
                    100: #######################################################
                    101: #######################################################
                    102: #
                    103: # Classlist variables
                    104: #
1.59      matthew   105: my $curr_student;
                    106: my $prev_student;
                    107: my $next_student;
                    108: 
                    109: #######################################################
                    110: #######################################################
                    111: 
                    112: =pod
                    113: 
                    114: =item &clear_classlist_variables()
                    115: 
                    116: undef the following package variables:
                    117: 
                    118: =over
                    119: 
1.60      matthew   120: =item @FullClasslist
                    121: 
                    122: =item @Students
1.59      matthew   123: 
1.60      matthew   124: =item @Sections
1.59      matthew   125: 
1.61      matthew   126: =item %StudentData
                    127: 
                    128: =item @StudentDataOrder
                    129: 
                    130: =item @SelectedStudentData
                    131: 
1.60      matthew   132: =item $curr_student
1.59      matthew   133: 
1.60      matthew   134: =item $prev_student
1.59      matthew   135: 
1.60      matthew   136: =item $next_student
1.59      matthew   137: 
                    138: =back
                    139: 
                    140: =cut
                    141: 
                    142: #######################################################
                    143: #######################################################
                    144: sub clear_classlist_variables {
                    145:     undef(@FullClasslist);
                    146:     undef(@Students);
                    147:     undef(@Sections);
1.61      matthew   148:     undef(%StudentData);
                    149:     undef(@SelectedStudentData);
1.59      matthew   150:     undef($curr_student);
                    151:     undef($prev_student);
                    152:     undef($next_student);
                    153: }
                    154: 
                    155: #######################################################
                    156: #######################################################
                    157: 
                    158: =pod
                    159: 
                    160: =item &PrepareClasslist()
                    161: 
                    162: Build up the classlist information.  The classlist information is kept in
                    163: the following package variables:
                    164: 
                    165: =over
                    166: 
1.60      matthew   167: =item @FullClasslist
                    168: 
                    169: =item @Students
1.59      matthew   170: 
1.60      matthew   171: =item @Sections
1.59      matthew   172: 
1.61      matthew   173: =item %StudentData
                    174: 
                    175: =item @SelectedStudentData
                    176: 
1.60      matthew   177: =item $curr_student
1.59      matthew   178: 
1.60      matthew   179: =item $prev_student
1.59      matthew   180: 
1.60      matthew   181: =item $next_student
1.59      matthew   182: 
                    183: =back
                    184: 
                    185: $curr_student, $prev_student, and $next_student may not be defined, depending
                    186: upon the calling context.
                    187: 
                    188: =cut
                    189: 
                    190: #######################################################
                    191: #######################################################
                    192: sub PrepareClasslist {
                    193:     my %Sections;
                    194:     &clear_classlist_variables();
                    195:     #
                    196:     # Retrieve the classlist
1.123     albertel  197:     my $cid  = $env{'request.course.id'};
                    198:     my $cdom = $env{'course.'.$cid.'.domain'};
                    199:     my $cnum = $env{'course.'.$cid.'.num'};
1.125   ! albertel  200:     my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cdom,
        !           201: 									$cnum);
1.119     matthew   202:     my @selected_sections = &get_selected_sections();
1.61      matthew   203:     #
1.69      matthew   204:     # Deal with instructors with restricted section access
1.123     albertel  205:     if ($env{'request.course.sec'} !~ /^\s*$/) {
                    206:         @selected_sections = ($env{'request.course.sec'});
1.69      matthew   207:     }
                    208:     #
1.61      matthew   209:     # Set up %StudentData
1.108     matthew   210:     @StudentDataOrder = qw/fullname username domain id section status comments/;
1.61      matthew   211:     foreach my $field (@StudentDataOrder) {
1.108     matthew   212:         $StudentData{$field}->{'title'} = &mt($field);
                    213:         $StudentData{$field}->{'base_width'} = length(&mt($field));
1.61      matthew   214:         $StudentData{$field}->{'width'} = 
                    215:                                $StudentData{$field}->{'base_width'};
                    216:     }
1.59      matthew   217:     #
1.68      matthew   218:     # get the status requested
1.94      matthew   219:     $enrollment_status = 'Active';
1.123     albertel  220:     $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'}));
1.68      matthew   221:     #
1.59      matthew   222:     # Process the classlist
                    223:     while (my ($student,$student_data) = each (%$classlist)) {
                    224:         my $studenthash = ();
                    225:         for (my $i=0; $i< scalar(@$field_names);$i++) {
1.61      matthew   226:             my $field = $field_names->[$i];
                    227:             # Store the data
                    228:             $studenthash->{$field}=$student_data->[$i];
                    229:             # Keep track of the width of the fields
                    230:             next if (! exists($StudentData{$field}));
1.63      matthew   231:             my $length = length($student_data->[$i]);
1.61      matthew   232:             if ($StudentData{$field}->{'width'} < $length) {
                    233:                 $StudentData{$field}->{'width'} = $length; 
                    234:             }
1.59      matthew   235:         }
                    236:         push (@FullClasslist,$studenthash);
                    237:         #
                    238:         # Build up a list of sections
                    239:         my $section = $studenthash->{'section'};
1.60      matthew   240:         if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
                    241:             $studenthash->{'section'} = 'none';
                    242:             $section = $studenthash->{'section'};
                    243:         }
1.59      matthew   244:         $Sections{$section}++;
                    245:         #
                    246:         # Only put in the list those students we are interested in
1.119     matthew   247:         foreach my $sect (@selected_sections) {
1.68      matthew   248:             if ( (($sect eq 'all') || 
                    249:                   ($section eq $sect)) &&
1.94      matthew   250:                  (($studenthash->{'status'} eq $enrollment_status) || 
                    251:                   ($enrollment_status eq 'Any')) 
1.68      matthew   252:                  ){
1.60      matthew   253:                 push (@Students,$studenthash);
                    254:                 last;
                    255:             }
1.59      matthew   256:         }
                    257:     }
                    258:     #
                    259:     # Put the consolidated section data in the right place
1.123     albertel  260:     if ($env{'request.course.sec'} !~ /^\s*$/) {
                    261:         @Sections = ($env{'request.course.sec'});
1.69      matthew   262:     } else {
                    263:         @Sections = sort {$a cmp $b} keys(%Sections);
                    264:         unshift(@Sections,'all'); # Put 'all' at the front of the list
                    265:     }
1.59      matthew   266:     #
                    267:     # Sort the Students
                    268:     my $sortby = 'fullname';
1.123     albertel  269:     $sortby = $env{'form.sort'} if (exists($env{'form.sort'}));
1.60      matthew   270:     my @TmpStudents = sort { $a->{$sortby} cmp $b->{$sortby} ||
                    271:                              $a->{'fullname'} cmp $b->{'fullname'} } @Students;
                    272:     @Students = @TmpStudents;
1.59      matthew   273:     # 
                    274:     # Now deal with that current student thing....
1.72      matthew   275:     $curr_student = undef;
1.123     albertel  276:     if (exists($env{'form.SelectedStudent'})) {
1.59      matthew   277:         my ($current_uname,$current_dom) = 
1.123     albertel  278:             split(':',$env{'form.SelectedStudent'});
1.59      matthew   279:         my $i;
                    280:         for ($i = 0; $i<=$#Students; $i++) {
                    281:             next if (($Students[$i]->{'username'} ne $current_uname) || 
                    282:                      ($Students[$i]->{'domain'}   ne $current_dom));
1.60      matthew   283:             $curr_student = $Students[$i];
1.59      matthew   284:             last; # If we get here, we have our student.
                    285:         }
1.72      matthew   286:         if (defined($curr_student)) {
                    287:             if ($i == 0) {
                    288:                 $prev_student = undef;
                    289:             } else {
                    290:                 $prev_student = $Students[$i-1];
                    291:             }
                    292:             if ($i == $#Students) {
                    293:                 $next_student = undef;
                    294:             } else {
                    295:                 $next_student = $Students[$i+1];
                    296:             }
1.59      matthew   297:         }
                    298:     }
1.61      matthew   299:     #
1.123     albertel  300:     if (exists($env{'form.StudentData'})) {
1.124     albertel  301: 	@SelectedStudentData = 
                    302: 	    &Apache::loncommon::get_env_multiple('form.StudentData');
1.61      matthew   303:     } else {
1.72      matthew   304:         @SelectedStudentData = ('username');
1.61      matthew   305:     }
                    306:     foreach (@SelectedStudentData) {
                    307:         if ($_ eq 'all') {
                    308:             @SelectedStudentData = ('all');
                    309:             last;
                    310:         }
                    311:     }
                    312:     #
                    313:     return;
                    314: }
                    315: 
1.119     matthew   316: #######################################################
                    317: #######################################################
                    318: 
                    319: =pod
                    320: 
                    321: =item get_selected_sections
                    322: 
                    323: Returns an array of the selected sections
                    324: 
                    325: =cut
                    326: 
                    327: #######################################################
                    328: #######################################################
                    329: sub get_selected_sections {
1.124     albertel  330:     my @selected_sections = 
                    331: 	&Apache::loncommon::get_env_multiple('form.Section');
1.119     matthew   332:     @selected_sections = ('all') if (! @selected_sections);
                    333:     foreach (@selected_sections) {
                    334:         if ($_ eq 'all') {
                    335:             @selected_sections = ('all');
                    336:         }
                    337:     }
                    338:     #
                    339:     # Deal with instructors with restricted section access
1.123     albertel  340:     if ($env{'request.course.sec'} !~ /^\s*$/) {
                    341:         @selected_sections = ($env{'request.course.sec'});
1.119     matthew   342:     }
                    343:     return @selected_sections;
                    344: }
                    345: 
                    346: #######################################################
                    347: #######################################################
                    348: 
                    349: =pod
                    350: 
                    351: =item &section_and_enrollment_description
                    352: 
1.122     matthew   353: Returns a string describing the currenly selected section(s) and 
                    354: enrollment status.  
                    355: 
                    356: Inputs: mode = 'plaintext' or 'localized'  (defaults to 'localized')
                    357:     'plaintext' is used for example in Excel spreadsheets.
                    358: Returns: scalar description string.
                    359: 
1.119     matthew   360: =cut
                    361: 
                    362: #######################################################
                    363: #######################################################
                    364: sub section_and_enrollment_description {
1.122     matthew   365:     my ($mode) = @_;
                    366:     if (! defined($mode)) { $mode = 'localized'; }
1.119     matthew   367:     my @sections = &Apache::lonstatistics::get_selected_sections();
1.122     matthew   368:     my $description;
                    369:     if ($mode eq 'localized') {
                    370:         $description = &mt('Unable to determine section and enrollment');
                    371:     } elsif ($mode eq 'plaintext') {
                    372:         $description = 'Unable to determine section and enrollment';
                    373:     } else {
                    374:         $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description';
                    375:         &Apache::lonnet::logthis($description);
                    376:     }
1.119     matthew   377:     if (scalar(@sections) == 1 && $sections[0] ne 'all') {
1.122     matthew   378:         if ($mode eq 'localized') {
                    379:             $description = &mt('Section [_1]. [_2] enrollment status.',
1.123     albertel  380:                                $sections[0],$env{'form.Status'});
1.122     matthew   381:         } elsif ($mode eq 'plaintext') {
                    382:             $description = 'Section '.$sections[0].'. '.
1.123     albertel  383:                 $env{'form.Status'}.' enrollment status.';
1.122     matthew   384:         }
1.119     matthew   385:     } elsif (scalar(@sections) && $sections[0] eq 'all') {
1.122     matthew   386:         if ($mode eq 'localized') {
                    387:             $description = &mt('All sections. [_1] enrollment status.',
1.123     albertel  388:                                $env{'form.Status'});
1.122     matthew   389:         } elsif ($mode eq 'plaintext') {
                    390:             $description = 'All sections. '.
1.123     albertel  391:                 $env{'form.Status'}.' enrollment status.';
1.122     matthew   392:         }
1.119     matthew   393:     } elsif (scalar(@sections)) {
                    394:         my $lastsection = pop(@sections);
1.122     matthew   395:         if ($mode eq 'localized') {
                    396:             $description = &mt('Sections [_1] and [_2]. [_3] enrollment status.',
                    397:                                join(', ',@sections),$lastsection,
1.123     albertel  398:                                $env{'form.Status'});
1.122     matthew   399:         } elsif ($mode eq 'plaintext') {
                    400:             $description = 
                    401:                 'Sections '.join(', ',@sections).' and '.$lastsection.'. '.
1.123     albertel  402:                 $env{'form.Status'}.' enrollment status.';
1.122     matthew   403:         }
1.119     matthew   404:     }
                    405:     return $description;
                    406: }
1.71      matthew   407: 
                    408: #######################################################
                    409: #######################################################
                    410: 
                    411: =pod
                    412: 
                    413: =item get_students
                    414: 
                    415: Returns a list of the selected students
                    416: 
                    417: =cut
                    418: 
                    419: #######################################################
                    420: #######################################################
                    421: sub get_students {
                    422:     if (! @Students) {
                    423:         &PrepareClasslist()
                    424:     }
                    425:     return @Students;
                    426: }
                    427: 
1.61      matthew   428: #######################################################
                    429: #######################################################
                    430: 
                    431: =pod
                    432: 
                    433: =item &current_student()
                    434: 
                    435: Returns a pointer to a hash containing data about the currently
                    436: selected student.
                    437: 
                    438: =cut
                    439: 
                    440: #######################################################
                    441: #######################################################
                    442: sub current_student { 
1.72      matthew   443:     return $curr_student;
1.61      matthew   444: }
                    445: 
                    446: #######################################################
                    447: #######################################################
                    448: 
                    449: =pod
                    450: 
                    451: =item &previous_student()
                    452: 
                    453: Returns a pointer to a hash containing data about the student prior
                    454: in the list of students.  Or something.  
                    455: 
                    456: =cut
                    457: 
                    458: #######################################################
                    459: #######################################################
                    460: sub previous_student { 
1.72      matthew   461:     return $prev_student;
1.59      matthew   462: }
                    463: 
                    464: #######################################################
                    465: #######################################################
1.61      matthew   466: 
                    467: =pod
                    468: 
                    469: =item &next_student()
                    470: 
                    471: Returns a pointer to a hash containing data about the next student
                    472: to be viewed.
                    473: 
                    474: =cut
                    475: 
                    476: #######################################################
                    477: #######################################################
                    478: sub next_student { 
1.72      matthew   479:     return $next_student;
1.61      matthew   480: }
1.60      matthew   481: 
1.61      matthew   482: ##############################################
                    483: ##############################################
                    484: 
                    485: =pod 
                    486: 
                    487: =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
                    488: 
                    489: Returns html for a selection box allowing the user to choose one (or more) 
                    490: of the fields of student data available (fullname, username, id, section, etc)
                    491: 
                    492: =over 4
                    493: 
                    494: =item $elementname The name of the HTML form element
                    495: 
                    496: =item $status 'multiple' or 'single' selection box
                    497: 
                    498: =item $numvisible The number of options to be visible
                    499: 
                    500: =back
1.60      matthew   501: 
                    502: =cut
                    503: 
1.61      matthew   504: ##############################################
                    505: ##############################################
                    506: sub StudentDataSelect {
                    507:     my ($elementname,$status,$numvisible)=@_;
                    508:     if ($numvisible < 1) {
                    509:         return;
                    510:     }
                    511:     #
                    512:     # Build the form element
                    513:     my $Str = "\n";
                    514:     $Str .= '<select name="'.$elementname.'" ';
                    515:     if ($status ne 'single') {
                    516:         $Str .= 'multiple="true" ';
                    517:     }
                    518:     $Str .= 'size="'.$numvisible.'" >'."\n";
                    519:     #
                    520:     # Deal with 'all'
                    521:     $Str .= '    <option value="all" ';
                    522:     foreach (@SelectedStudentData) {
                    523:         if ($_ eq 'all') {
                    524:             $Str .= 'selected ';
                    525:             last;
                    526:         }
                    527:     }
                    528:     $Str .= ">all</option>\n";
                    529:     #
                    530:     # Loop through the student data fields
                    531:     foreach my $item (@StudentDataOrder) {
                    532:         $Str .= '    <option value="'.$item.'" ';
                    533:         foreach (@SelectedStudentData) {
                    534:             if ($item eq $_ ) {
                    535:                 $Str .= 'selected ';
                    536:                 last;
                    537:             }
                    538:         }
                    539:         $Str .= '>'.$item."</option>\n";
                    540:     }
                    541:     $Str .= "</select>\n";
                    542:     return $Str;
1.60      matthew   543: }
                    544: 
1.115     matthew   545: #######################################################
                    546: #######################################################
                    547: 
                    548: =pod
                    549: 
                    550: =item &get_selected_maps($elementname)
                    551: 
                    552: Input: Name of the <select> form element used to specify the maps.
                    553: 
                    554: Returns: Array of symbs of selected maps or the description 'all'.
                    555:    If form.$elementname does not exist, 'all' is returned.
                    556: 
                    557: =cut
                    558: 
                    559: #######################################################
                    560: #######################################################
                    561: sub get_selected_maps {
                    562:     my ($elementname) = @_;
1.124     albertel  563:     my @selected_maps = 
                    564: 	&Apache::loncommon::get_env_multiple('form.'.$elementname);
                    565:     @selected_maps = ('all') if (! @selected_maps);
1.118     matthew   566:     foreach my $map (@selected_maps) {
                    567:         if ($map eq 'all') {
                    568:             @selected_maps = ('all');
                    569:             last;
                    570:         }
                    571:     }
1.115     matthew   572:     return @selected_maps;
                    573: }
                    574: 
                    575: 
                    576: #######################################################
                    577: #######################################################
                    578: 
                    579: =pod
                    580: 
1.116     matthew   581: =item &selected_sequences_with_assessments
1.115     matthew   582: 
                    583: Retrieve the sequences which were selected by the user to show.  
                    584: 
                    585: Input: $mode: scalar.  Either 'selected' or 'all'.  If not specified,
                    586:     'selected' is used.
                    587: 
                    588: Returns: an array containing a navmap object and navmap resources, 
                    589:     or an array containing a scalar with an error message.
                    590: 
                    591: =cut
                    592: 
                    593: #######################################################
                    594: #######################################################
1.116     matthew   595: sub selected_sequences_with_assessments {
1.115     matthew   596:     my ($mode) = @_;
                    597:     $mode = 'selected' if (! defined($mode));
                    598:     my $navmap = Apache::lonnavmaps::navmap->new();
                    599:     if (!defined($navmap)) {
                    600:         return ('Can not open Coursemap');
                    601:     }
                    602:     #
                    603:     my @sequences = $navmap->retrieveResources(undef,
                    604:                                                sub { shift->is_map(); },1,0,1);
                    605:     my @sequences_with_assessments;
                    606:     for my $sequence ($navmap->getById('0.0'), @sequences) {
1.120     matthew   607: 	if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
1.115     matthew   608:             push(@sequences_with_assessments,$sequence);
                    609:         }
                    610:     }
                    611:     #
                    612:     my @sequences_to_show;
                    613:     foreach my $sequence (@sequences_with_assessments) {
                    614:         if ($mode eq 'all') {
                    615:             push (@sequences_to_show,$sequence);
                    616:         } elsif ($mode eq 'selected') {
1.116     matthew   617:             foreach my $map_symb (&get_selected_maps('Maps')) {
1.115     matthew   618:                 if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
                    619:                     push (@sequences_to_show,$sequence);
                    620:                     last; # Only put it in once
                    621:                 }
                    622:             }
                    623:         }
                    624: 
                    625:     }
                    626:     return $navmap,@sequences_to_show;
                    627: }
                    628: 
1.60      matthew   629: ##############################################
                    630: ##############################################
                    631: 
                    632: =pod 
                    633: 
1.115     matthew   634: =item &map_select($elementname,$status,$numvisible,$restriction) 
1.60      matthew   635: 
                    636: Returns html for a selection box allowing the user to choose one (or more) 
                    637: of the sequences in the course.  The values of the sequences are the symbs.
                    638: If the top sequence is selected, the value 'top' will result.
                    639: 
                    640: =over 4
                    641: 
                    642: =item $elementname The name of the HTML form element
                    643: 
                    644: =item $status 'multiple' or 'single' selection box
                    645: 
                    646: =item $numvisible The number of options to be visible
                    647: 
                    648: =back
                    649: 
                    650: =cut
                    651: 
                    652: ##############################################
                    653: ##############################################
1.115     matthew   654: sub map_select {
                    655:     my ($elementname,$status,$numvisible)=@_;
1.60      matthew   656:     if ($numvisible < 1) {
                    657:         return;
                    658:     }
                    659:     #
                    660:     # Set up array of selected items
1.115     matthew   661:     my @selected_maps = &get_selected_maps($elementname);
1.60      matthew   662:     #
                    663:     # Build the form element
1.115     matthew   664:     my $form = "\n";
                    665:     $form .= '<select name="'.$elementname.'" ';
1.60      matthew   666:     if ($status ne 'single') {
1.115     matthew   667:         $form .= 'multiple="true" ';
1.60      matthew   668:     }
1.115     matthew   669:     $form .= 'size="'.$numvisible.'" >'."\n";
1.60      matthew   670:     #
1.61      matthew   671:     # Put in option for 'all'
1.115     matthew   672:     $form .= '    <option value="all" ';
1.118     matthew   673:     if ($selected_maps[0] eq 'all') {
                    674:         $form .= 'selected ';
1.61      matthew   675:     }
1.115     matthew   676:     $form .= ">all</option>\n";
1.61      matthew   677:     #
1.60      matthew   678:     # Loop through the sequences
1.117     matthew   679:     my @sequences = &selected_sequences_with_assessments('all');
1.115     matthew   680:     my $navmap;
                    681:     if (!ref($sequences[0])) {
                    682:         return $sequences[0];
                    683:     } else {
                    684:         $navmap = shift(@sequences);
                    685:     }
                    686:     foreach my $seq (@sequences){
                    687:         $form .= '    <option value="'.$seq->symb.'" ';
                    688:         foreach (@selected_maps) {
                    689:             if ($seq->symb eq $_) {
                    690:                 $form .= 'selected ';
1.60      matthew   691:                 last;
                    692:             }
                    693:         }
1.115     matthew   694:         $form .= '>'.$seq->compTitle."</option>\n";
1.60      matthew   695:     }
1.115     matthew   696:     $form .= "</select>\n";
                    697:     return $form;
1.60      matthew   698: }
                    699: 
                    700: ##############################################
                    701: ##############################################
                    702: 
                    703: =pod 
                    704: 
                    705: =item &SectionSelect($elementname,$status,$numvisible) 
                    706: 
                    707: Returns html for a selection box allowing the user to choose one (or more) 
                    708: of the sections in the course.  
                    709: 
1.119     matthew   710: Uses the package variables @Sections
1.60      matthew   711: =over 4
                    712: 
                    713: =item $elementname The name of the HTML form element
                    714: 
                    715: =item $status 'multiple' or 'single' selection box
                    716: 
                    717: =item $numvisible The number of options to be visible
                    718: 
                    719: =back
                    720: 
                    721: =cut
                    722: 
                    723: ##############################################
                    724: ##############################################
                    725: sub SectionSelect {
                    726:     my ($elementname,$status,$numvisible)=@_;
                    727:     if ($numvisible < 1) {
                    728:         return;
                    729:     }
                    730:     #
1.71      matthew   731:     # Make sure we have the data we need to continue
                    732:     if (! @Sections) {
                    733:         &PrepareClasslist()
                    734:     }
                    735:     #
1.60      matthew   736:     # Build the form element
                    737:     my $Str = "\n";
                    738:     $Str .= '<select name="'.$elementname.'" ';
                    739:     if ($status ne 'single') {
                    740:         $Str .= 'multiple="true" ';
                    741:     }
                    742:     $Str .= 'size="'.$numvisible.'" >'."\n";
                    743:     #
                    744:     # Loop through the sequences
                    745:     foreach my $s (@Sections) {
                    746:         $Str .= '    <option value="'.$s.'" ';
1.119     matthew   747:         foreach (&get_selected_sections()) {
1.61      matthew   748:             if ($s eq $_) {
1.60      matthew   749:                 $Str .= 'selected ';
                    750:                 last;
                    751:             }
                    752:         }
                    753:         $Str .= '>'.$s."</option>\n";
                    754:     }
                    755:     $Str .= "</select>\n";
                    756:     return $Str;
1.80      matthew   757: }
                    758: 
1.61      matthew   759: ##################################################
                    760: ##################################################
1.60      matthew   761: sub DisplayClasslist {
                    762:     my ($r)=@_;
1.107     matthew   763:     &Apache::lonhtmlcommon::add_breadcrumb
                    764:         ({text=>'Select One Student'});
1.60      matthew   765:     #
1.105     matthew   766:     # Output some of the standard interface components
                    767:     my $Str;
1.107     matthew   768:     $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Select One Student');
1.105     matthew   769:     $Str .= '<p><table cellspacing="5">'."\n";
                    770:     $Str .= '<tr>';
                    771:     $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
                    772:     $Str .= '<th align="center"><b>'.&mt('Enrollment Status').'</b></th>';
                    773:     $Str .= '</tr>'.$/;
                    774:     $Str .= '<tr>';
                    775:     $Str .= '<td>'.
                    776:         &Apache::lonstatistics::SectionSelect('Section','multiple',5).
                    777:         '</td>';
                    778:     $Str .= '<td>'.
                    779:         &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
                    780:         '</td>';
                    781:     
                    782:     $Str .= '</tr>'.$/;
                    783:     $Str .= '</table></p>';
                    784:     $Str .= '<input type="submit" name="selectstudent" value="'.
                    785:         &mt('Update Display').'" />';
                    786:     $r->print($Str);
                    787:     $r->rflush();
                    788:     #
                    789:     my @Fields = ('fullname','username','domain','id','section','status');
1.60      matthew   790:     #
1.105     matthew   791:     $Str = '';
1.119     matthew   792:     my @selected_sections = &get_selected_sections();
1.78      matthew   793:     if (! @Students) {
1.119     matthew   794:         if ($selected_sections[0] eq 'all') { 
1.123     albertel  795:             if (lc($env{'form.Status'}) eq 'any') {
1.106     matthew   796:                 $Str .= '<h2>'.
                    797:                     &mt('There are no students in the course.').
                    798:                     '</h2>';
1.123     albertel  799:             } elsif (lc($env{'form.Status'}) eq 'active') {
1.106     matthew   800:                 $Str .= '<h2>'.
                    801:                 &mt('There are no currently enrolled students in the course.').
                    802:                     '</h2>';
1.123     albertel  803:             } elsif (lc($env{'form.Status'}) eq 'expired') {
1.106     matthew   804:                 $Str .= '<h2>'.
                    805:                     &mt('There are no previously enrolled students in the course.').
                    806:                         '</h2>';
1.78      matthew   807:             }
                    808:         } else { 
                    809:             my $sections;
1.123     albertel  810:             if (lc($env{'form.Status'}) eq 'any') {
1.106     matthew   811:                 $Str .= '<h2>'.
                    812:                     &mt('There are no students in the selected sections.').
                    813:                     '</h2>';
1.123     albertel  814:             } elsif (lc($env{'form.Status'}) eq 'active') {
1.106     matthew   815:                 $Str .= '<h2>'.
                    816:                     &mt('There are no currently enrolled students in the selected sections.').
                    817:                     '</h2>';
1.123     albertel  818:             } elsif (lc($env{'form.Status'}) eq 'expired') {
1.106     matthew   819:                 $Str .= '<h2>'.
                    820:                     &mt('There are no previously enrolled students in the selected sections.').
                    821:                     '</h2>';
1.78      matthew   822:             }
                    823:         }
                    824:         $Str.= '<a href="/adm/statistics?reportSelected=student_assessment">'.
1.106     matthew   825:             &mt('Click here to return to the chart').'</a>';
1.78      matthew   826:         $r->print($Str);
                    827:         $r->rflush();
                    828:         return;
                    829:     }
                    830: 
1.76      matthew   831:     # "Click" is asinine but it is probably not my place to change the world.
1.78      matthew   832:     $Str .= '<h2>Click on a students name or username to view their chart</h2>';
1.60      matthew   833:     $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";
                    834:     $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";
                    835:     foreach my $field (@Fields) {
1.101     matthew   836:         $Str .= '<th><a href="/adm/statistics?'.
                    837:             'reportSelected=student_assessment&'.
                    838:             'selectstudent=1&'.
1.106     matthew   839:             'sort='.$field.'">'.&mt($field).
1.60      matthew   840:             '</a></th>';
                    841:     }
                    842:     $Str .= '</tr>'."\n";
                    843:     #
                    844:     my $alternate = 0;
1.65      matthew   845:     foreach my $student (@Students) { # @Students is a package variable
1.60      matthew   846:         my $sname = $student->{'username'}.':'.$student->{'domain'};
                    847:         if($alternate) {
                    848:             $Str .= '<tr bgcolor="#ffffe6">';
                    849:         } else {
                    850:             $Str .= '<tr bgcolor="#ffffc6">';
                    851:         }
                    852:         $alternate = ($alternate + 1) % 2;
                    853:         #
                    854:         foreach my $field (@Fields) {
                    855:             $Str .= '<td>';
1.78      matthew   856:             if ($field eq 'fullname' || $field eq 'username') {
1.60      matthew   857:                 $Str .= '<a href="/adm/statistics?reportSelected=';
1.65      matthew   858:                 $Str .= &Apache::lonnet::escape('student_assessment');
1.123     albertel  859:                 $Str .= '&sort='.&Apache::lonnet::escape($env{'form.sort'});
1.72      matthew   860:                 $Str .= '&SelectedStudent=';
1.61      matthew   861:                 $Str .= &Apache::lonnet::escape($sname).'">';
1.60      matthew   862:                 $Str .= $student->{$field}.'&nbsp';
                    863:                 $Str .= '</a>';
1.106     matthew   864:             } elsif ($field eq 'status') {
                    865:                 $Str .= &mt($student->{$field});
1.60      matthew   866:             } else {
                    867:                 $Str .= $student->{$field};
                    868:             }
                    869:             $Str .= '</td>';
                    870:         }
                    871:         $Str .= "</tr>\n";
                    872:     }
                    873:     $Str .= '</table></td></tr></table>'."\n";
                    874:     #
                    875:     $r->print($Str);
                    876:     $r->rflush();
                    877:     #
                    878:     return;
                    879: }
                    880: 
1.65      matthew   881: ##############################################
                    882: ##############################################
1.33      stredwic  883: sub CreateMainMenu {
1.65      matthew   884:     #
1.85      matthew   885:     # Define menu data
                    886:     my @reports = ({ internal_name => 'problem_statistics',
                    887:                      name => &mt('Overall Problem Statistics'),
                    888:                      short_description => 
                    889:     &mt('Student performance statistics on all problems.'),
                    890:                  },
                    891:                    { internal_name => 'problem_analysis',
                    892:                      name => &mt('Detailed Problem Analysis'),
                    893:                      short_description => 
                    894:     &mt('Detailed statistics and graphs of student performance on problems.'),
                    895:                  },
1.89      matthew   896:                    { internal_name => 'submissiontime_analysis',
1.94      matthew   897:                      name => &mt('Submission Time Plots'),
1.89      matthew   898:                      short_description => 
                    899:     &mt('Display and analysis of submission times on assessments.'),
                    900:                  },
1.97      matthew   901:                    { internal_name => 'student_submission_reports',
                    902:                      name => &mt('Student Submission Reports'),
                    903:                      short_description => 
1.111     matthew   904:     &mt('Prepare reports of student submissions.'),
1.97      matthew   905:                  },
1.104     matthew   906:                    { internal_name => 'survey_reports',
                    907:                      name => &mt('Survey Reports'),
                    908:                      short_description => 
                    909:     &mt('Prepare reports on survey results.'),
                    910:                  },
1.94      matthew   911:                    { internal_name => 'correct_problems_plot',
                    912:                      name => &mt('Correct Problems Plot'),
                    913:                      short_description => 
                    914:     &mt('Display a histogram of student performance in the course.'),
                    915:                  },
1.88      matthew   916: #                   { internal_name => 'student_assessment',
                    917: #                     name => &mt('Problem Status Chart'),
                    918: #                     short_description => 
                    919: #    &mt('Brief view of each students performance in course.'),
                    920: #                 },
1.85      matthew   921:                    # 'percentage'  => 'Correct-problems Plot',
                    922:                    # 'activitylog' => 'Activity Log',
                    923:                    );
1.65      matthew   924:     #
1.85      matthew   925:     # Create the menu
                    926:     my $Str;
1.98      matthew   927:     $Str .= '<h2>'.&mt('Please select a report to generate').'</h2>';
1.85      matthew   928:     foreach my $reportdata (@reports) {
1.87      matthew   929:         $Str .='    <h3><a href="/adm/statistics?reportSelected='.
1.85      matthew   930:             $reportdata->{'internal_name'}.'" >'.
1.87      matthew   931:             $reportdata->{'name'}."</a></h3>\n";
                    932:         $Str .= '    '.('&nbsp;'x8).$reportdata->{'short_description'}.
                    933:             "\n";
1.85      matthew   934:     }
                    935:     $Str .="</dl>\n";
1.65      matthew   936:     #
1.33      stredwic  937:     return $Str;
                    938: }
                    939: 
1.65      matthew   940: ##############################################
                    941: ##############################################
1.1       albertel  942: sub handler {
1.31      minaeibi  943:     my $r=shift;
1.65      matthew   944:     my $c = $r->connection();
                    945:     #
                    946:     # Check for overloading
1.51      www       947:     my $loaderror=&Apache::lonnet::overloaderror($r);
                    948:     if ($loaderror) { return $loaderror; }
                    949:     $loaderror=
                    950:        &Apache::lonnet::overloaderror($r,
1.123     albertel  951:          $env{'course.'.$env{'request.course.id'}.'.home'});
1.51      www       952:     if ($loaderror) { return $loaderror; }
1.65      matthew   953:     #
                    954:     # Check for access
1.123     albertel  955:     if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
                    956:         $env{'user.error.msg'}=
1.69      matthew   957:             $r->uri.":vgr:0:0:Cannot view grades for complete course";
                    958:         if (! &Apache::lonnet::allowed('vgr',
1.123     albertel  959:                       $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
                    960:             $env{'user.error.msg'}=
1.69      matthew   961:                 $r->uri.":vgr:0:0:Cannot view grades with given role";
                    962:             return HTTP_NOT_ACCEPTABLE;
                    963:         }
1.27      stredwic  964:     }
1.65      matthew   965:     #
                    966:     # Send the header
1.92      www       967:     &Apache::loncommon::no_cache($r);
                    968:     &Apache::loncommon::content_type($r,'text/html');
1.27      stredwic  969:     $r->send_http_header;
1.92      www       970:     if ($r->header_only) { return OK; }
1.65      matthew   971:     #
                    972:     # Extract form elements from query string
1.60      matthew   973:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.65      matthew   974:                                             ['sort','reportSelected',
1.72      matthew   975:                                              'SelectedStudent']);
1.65      matthew   976:     #
                    977:     # Give the LON-CAPA page header
1.109     matthew   978:     my $style = <<ENDSTYLE;
                    979: <style type="text/css">
                    980:     ul.sub_studentans { list-style-type: none }
                    981:     ul.sub_correctans { list-style-type: none }
1.110     matthew   982:     tr.even           { background-color: \#CCCCCC }
                    983:     td.essay          { border: 1px solid gray; }
1.109     matthew   984: </style>
                    985: ENDSTYLE
1.114     albertel  986:     my $html=&Apache::lonxml::xmlbegin();
                    987:     $r->print($html.'<head><title>'.
1.96      matthew   988:               &mt('Course Statistics and Charts').
1.109     matthew   989:               '</title>'.$style.
                    990:               "</head>\n".
1.98      matthew   991:               &Apache::loncommon::bodytag('Course Statistics and Charts'));
1.65      matthew   992:     $r->rflush();
1.85      matthew   993:     # 
                    994:     # Either print out a menu for them or send them to a report
1.98      matthew   995:     &Apache::lonhtmlcommon::clear_breadcrumbs();
                    996:     &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
1.100     matthew   997:                                             title=>'Statistics',
                    998:                                             text =>'Statistics',
1.98      matthew   999:                                             faq=>139,
                   1000:                                             bug=>'Statistics and Charts'});
1.123     albertel 1001:     if (! exists($env{'form.reportSelected'}) || 
                   1002:         $env{'form.reportSelected'} eq '') {
1.98      matthew  1003:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
1.99      matthew  1004:                   (undef,&mt('Statistics Main Page')).
1.98      matthew  1005:                   &CreateMainMenu());
1.85      matthew  1006:     } else {
1.65      matthew  1007:     #
1.85      matthew  1008:         if (! &Apache::lonmysql::verify_sql_connection()) {
                   1009:             my $serveradmin = $r->dir_config('lonAdmEMail');
                   1010:             $r->print('<h2><font color="Red">'.
                   1011:                       &mt('Unable to connect to database!').
                   1012:                       '</font></h2>');
                   1013:             $r->print('<p>'.
                   1014:                       &mt('Please notify the server administrator ').
                   1015:                       '<b>'.$serveradmin.'</b></p>');
                   1016:             $r->print('<p>'.
                   1017:                       &mt('Course Statistics and Charts cannot be '.
                   1018:                           'retrieved until the database is restarted.  '.
                   1019:                           'Your data is intact but cannot be displayed '.
                   1020:                           'at this time.').'</p>');
                   1021:             $r->print('</body></html>');
                   1022:             return;
                   1023:         }
                   1024:         #
                   1025:         # Clean out the caches
1.123     albertel 1026:         if (exists($env{'form.ClearCache'})) {
                   1027:             &Apache::loncoursedata::delete_caches($env{'requres.course.id'});
1.85      matthew  1028:         }
                   1029:         #
                   1030:         # Begin form output
                   1031:         $r->print('<form name="Statistics" ');
                   1032:         $r->print('method="post" action="/adm/statistics">');
                   1033:         $r->rflush();
                   1034:         #
1.123     albertel 1035:         my $GoToPage = $env{'form.reportSelected'};
1.90      matthew  1036:         #
1.85      matthew  1037:         $r->print('<input type="hidden" name="reportSelected" value="'.
                   1038:                   $GoToPage.'">');
                   1039:         if($GoToPage eq 'activitylog') {
1.65      matthew  1040: #        &Apache::lonproblemstatistics::Activity();
1.85      matthew  1041:         } elsif($GoToPage eq 'problem_statistics') {
1.98      matthew  1042:             &Apache::lonhtmlcommon::add_breadcrumb
                   1043:                 ({href=>'/adm/statistics?reportselected=problem_statistics',
1.100     matthew  1044:                   text=>'Overall Problem Statistics'});
1.85      matthew  1045:             &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
                   1046:         } elsif($GoToPage eq 'problem_analysis') {
1.98      matthew  1047:             &Apache::lonhtmlcommon::add_breadcrumb
                   1048:                 ({href=>'/adm/statistics?reportselected=problem_analysis',
1.100     matthew  1049:                   text=>'Detailed Problem Analysis'});
1.85      matthew  1050:             &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
1.89      matthew  1051:         } elsif($GoToPage eq 'submissiontime_analysis') {
1.98      matthew  1052:             &Apache::lonhtmlcommon::add_breadcrumb
                   1053:                 ({href=>
                   1054:                       '/adm/statistics?reportselected=submissiontime_analysis',
1.100     matthew  1055:                       text=>'Submission Time Plots'});
1.89      matthew  1056:             &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
1.97      matthew  1057:         } elsif($GoToPage eq 'student_submission_reports') {
1.98      matthew  1058:             &Apache::lonhtmlcommon::add_breadcrumb
                   1059:                 ({href=>
                   1060:                   '/adm/statistics?reportselected=student_submission_reports',
1.100     matthew  1061:                   text=>'Student Submission Reports'});
1.97      matthew  1062:             &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
1.104     matthew  1063:         } elsif($GoToPage eq 'survey_reports') {
                   1064:             &Apache::lonhtmlcommon::add_breadcrumb
                   1065:                 ({href=>
                   1066:                   '/adm/statistics?reportselected=survey_reports',
                   1067:                   text=>'Survey Reports'});
                   1068:             &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
1.94      matthew  1069:         } elsif($GoToPage eq 'correct_problems_plot') {
1.98      matthew  1070:             &Apache::lonhtmlcommon::add_breadcrumb
                   1071:                 ({href=>'/adm/statistics?reportselected=correct_problems_plot',
1.100     matthew  1072:                   text=>'Correct Problems Plot'});
1.94      matthew  1073:             &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
1.85      matthew  1074:         } elsif($GoToPage eq 'student_assessment') {
1.98      matthew  1075:             &Apache::lonhtmlcommon::clear_breadcrumbs();
                   1076:             &Apache::lonhtmlcommon::add_breadcrumb
                   1077:                 ({href=>'/adm/statistics?reportselected=student_assessment',
1.100     matthew  1078:                   text=>'Chart'});
1.85      matthew  1079:             &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
                   1080:         }
                   1081:         #
                   1082:         $r->print("</form>\n");
1.65      matthew  1083:     }
                   1084:     $r->print("</body>\n</html>\n");
                   1085:     $r->rflush();
                   1086:     #
1.27      stredwic 1087:     return OK;
1.1       albertel 1088: }
1.65      matthew  1089: 
1.1       albertel 1090: 1;
1.59      matthew  1091: 
1.65      matthew  1092: #######################################################
                   1093: #######################################################
                   1094: 
1.59      matthew  1095: =pod
                   1096: 
                   1097: =back
                   1098: 
                   1099: =cut
1.65      matthew  1100: 
                   1101: #######################################################
                   1102: #######################################################
1.59      matthew  1103: 
1.1       albertel 1104: __END__
1.31      minaeibi 1105: 

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