Annotation of loncom/interface/lonstatistics.pm, revision 1.131

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: #
1.131   ! albertel    3: # $Id: lonstatistics.pm,v 1.130 2006/05/01 05:39:44 raeburn 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
1.130     raeburn    52:     @Sections
                     53:     @Groups 
1.61      matthew    54:     %StudentData
                     55:     @StudentDataOrder
                     56:     @SelectedStudentData
1.94      matthew    57:     $enrollment_status);
1.61      matthew    58: 
1.123     albertel   59: use Apache::lonnet;
1.1       albertel   60: use Apache::lonhomework;
1.12      minaeibi   61: use Apache::loncommon;
1.29      stredwic   62: use Apache::loncoursedata;
                     63: use Apache::lonhtmlcommon;
1.97      matthew    64: use Apache::lonmysql;
                     65: use Apache::lonlocal;
                     66: use Time::HiRes;
                     67: #
                     68: # Statistics Packages
1.61      matthew    69: use Apache::lonproblemanalysis();
1.89      matthew    70: use Apache::lonsubmissiontimeanalysis();
1.94      matthew    71: use Apache::loncorrectproblemplot();
1.61      matthew    72: use Apache::lonproblemstatistics();
                     73: use Apache::lonstudentassessment();
1.49      stredwic   74: use Apache::lonpercentage;
1.97      matthew    75: use Apache::lonstudentsubmissions();
1.104     matthew    76: use Apache::lonsurveyreports();
1.128     albertel   77: use Apache::longradinganalysis();
1.60      matthew    78: 
                     79: #######################################################
                     80: #######################################################
                     81: 
                     82: =pod
                     83: 
                     84: =item Package Variables
                     85: 
                     86: =item @FullClasslist The full classlist
                     87: 
                     88: =item @Students The students we are concerned with for this invocation
                     89: 
                     90: =item @Sections The sections available in this class
                     91: 
1.130     raeburn    92: =item @Groups The groups available in the class
                     93: 
1.60      matthew    94: =item $curr_student The student currently being examined
                     95: 
                     96: =item $prev_student The student previous in the classlist
                     97: 
                     98: =item $next_student The student next in the classlist
                     99: 
                    100: =over
                    101: 
                    102: =cut 
                    103: 
                    104: #######################################################
                    105: #######################################################
                    106: #
                    107: # Classlist variables
                    108: #
1.59      matthew   109: my $curr_student;
                    110: my $prev_student;
                    111: my $next_student;
                    112: 
                    113: #######################################################
                    114: #######################################################
                    115: 
                    116: =pod
                    117: 
                    118: =item &clear_classlist_variables()
                    119: 
                    120: undef the following package variables:
                    121: 
                    122: =over
                    123: 
1.60      matthew   124: =item @FullClasslist
                    125: 
                    126: =item @Students
1.59      matthew   127: 
1.60      matthew   128: =item @Sections
1.59      matthew   129: 
1.130     raeburn   130: =item @Groups
                    131: 
1.61      matthew   132: =item %StudentData
                    133: 
                    134: =item @StudentDataOrder
                    135: 
                    136: =item @SelectedStudentData
                    137: 
1.60      matthew   138: =item $curr_student
1.59      matthew   139: 
1.60      matthew   140: =item $prev_student
1.59      matthew   141: 
1.60      matthew   142: =item $next_student
1.59      matthew   143: 
                    144: =back
                    145: 
                    146: =cut
                    147: 
                    148: #######################################################
                    149: #######################################################
                    150: sub clear_classlist_variables {
                    151:     undef(@FullClasslist);
                    152:     undef(@Students);
                    153:     undef(@Sections);
1.130     raeburn   154:     undef(@Groups);
1.61      matthew   155:     undef(%StudentData);
                    156:     undef(@SelectedStudentData);
1.59      matthew   157:     undef($curr_student);
                    158:     undef($prev_student);
                    159:     undef($next_student);
                    160: }
                    161: 
                    162: #######################################################
                    163: #######################################################
                    164: 
                    165: =pod
                    166: 
                    167: =item &PrepareClasslist()
                    168: 
                    169: Build up the classlist information.  The classlist information is kept in
                    170: the following package variables:
                    171: 
                    172: =over
                    173: 
1.60      matthew   174: =item @FullClasslist
                    175: 
                    176: =item @Students
1.59      matthew   177: 
1.60      matthew   178: =item @Sections
1.59      matthew   179: 
1.130     raeburn   180: =item @Groups 
                    181: 
1.61      matthew   182: =item %StudentData
                    183: 
                    184: =item @SelectedStudentData
                    185: 
1.60      matthew   186: =item $curr_student
1.59      matthew   187: 
1.60      matthew   188: =item $prev_student
1.59      matthew   189: 
1.60      matthew   190: =item $next_student
1.59      matthew   191: 
                    192: =back
                    193: 
                    194: $curr_student, $prev_student, and $next_student may not be defined, depending
                    195: upon the calling context.
                    196: 
                    197: =cut
                    198: 
                    199: #######################################################
                    200: #######################################################
                    201: sub PrepareClasslist {
                    202:     my %Sections;
                    203:     &clear_classlist_variables();
                    204:     #
                    205:     # Retrieve the classlist
1.123     albertel  206:     my $cid  = $env{'request.course.id'};
                    207:     my $cdom = $env{'course.'.$cid.'.domain'};
                    208:     my $cnum = $env{'course.'.$cid.'.num'};
1.125     albertel  209:     my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cdom,
                    210: 									$cnum);
1.119     matthew   211:     my @selected_sections = &get_selected_sections();
1.130     raeburn   212:     my @selected_groups = &get_selected_groups();
1.61      matthew   213:     #
1.69      matthew   214:     # Deal with instructors with restricted section access
1.123     albertel  215:     if ($env{'request.course.sec'} !~ /^\s*$/) {
                    216:         @selected_sections = ($env{'request.course.sec'});
1.69      matthew   217:     }
                    218:     #
1.61      matthew   219:     # Set up %StudentData
1.130     raeburn   220:     @StudentDataOrder = qw/fullname username domain id section status groups comments/;
1.61      matthew   221:     foreach my $field (@StudentDataOrder) {
1.108     matthew   222:         $StudentData{$field}->{'title'} = &mt($field);
                    223:         $StudentData{$field}->{'base_width'} = length(&mt($field));
1.61      matthew   224:         $StudentData{$field}->{'width'} = 
                    225:                                $StudentData{$field}->{'base_width'};
                    226:     }
1.59      matthew   227:     #
1.68      matthew   228:     # get the status requested
1.94      matthew   229:     $enrollment_status = 'Active';
1.123     albertel  230:     $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'}));
1.68      matthew   231:     #
1.130     raeburn   232:     # Get groupmembership
                    233:     my (%curr_groups,$classgroups,$studentgroups);
                    234:     my $numgroups = &Apache::loncommon::coursegroups(\%curr_groups,$cdom,$cnum);
                    235:     if ($numgroups) {
                    236:         ($classgroups,$studentgroups) = 
                    237:                      &Apache::loncoursedata::get_group_memberships($classlist,
                    238:                                                                    $cdom,$cnum);
                    239:     }
                    240:     my $now = time;
                    241: 
1.59      matthew   242:     # Process the classlist
                    243:     while (my ($student,$student_data) = each (%$classlist)) {
                    244:         my $studenthash = ();
                    245:         for (my $i=0; $i< scalar(@$field_names);$i++) {
1.61      matthew   246:             my $field = $field_names->[$i];
                    247:             # Store the data
                    248:             $studenthash->{$field}=$student_data->[$i];
                    249:             # Keep track of the width of the fields
                    250:             next if (! exists($StudentData{$field}));
1.63      matthew   251:             my $length = length($student_data->[$i]);
1.61      matthew   252:             if ($StudentData{$field}->{'width'} < $length) {
                    253:                 $StudentData{$field}->{'width'} = $length; 
                    254:             }
1.59      matthew   255:         }
1.130     raeburn   256:         my @studentsgroups = &Apache::loncoursedata::get_students_groups
                    257:                                                    ($student,$enrollment_status,
                    258:                                                     $classgroups);
                    259:         if (@studentsgroups) {
                    260:             $studenthash->{'groups'} = join(', ',@studentsgroups);
                    261:             $studenthash->{'groupref'} = \@studentsgroups;
                    262:         } else {
                    263:             $studenthash->{'groups'} = 'none';
                    264:             $studenthash->{'groupref'} = []; 
                    265:         }
1.59      matthew   266:         push (@FullClasslist,$studenthash);
                    267:         #
                    268:         # Build up a list of sections
                    269:         my $section = $studenthash->{'section'};
1.60      matthew   270:         if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
                    271:             $studenthash->{'section'} = 'none';
                    272:             $section = $studenthash->{'section'};
                    273:         }
1.59      matthew   274:         $Sections{$section}++;
                    275:         #
                    276:         # Only put in the list those students we are interested in
1.119     matthew   277:         foreach my $sect (@selected_sections) {
1.68      matthew   278:             if ( (($sect eq 'all') || 
                    279:                   ($section eq $sect)) &&
1.94      matthew   280:                  (($studenthash->{'status'} eq $enrollment_status) || 
                    281:                   ($enrollment_status eq 'Any')) 
1.68      matthew   282:                  ){
1.130     raeburn   283:                 my $groupcheck = 0;
1.131   ! albertel  284:                 if (grep(/^all$/,@selected_groups)) {
        !           285:                     push(@Students,$studenthash);
1.130     raeburn   286:                     last;
1.131   ! albertel  287:                 } elsif (grep(/^none$/,@selected_groups)) {
1.130     raeburn   288:                     if ($studenthash->{'groups'} eq 'none') {
1.131   ! albertel  289:                         push(@Students,$studenthash);
1.130     raeburn   290:                         last;
                    291:                     }     
                    292:                 } else {
                    293:                     foreach my $group (@selected_groups) {
1.131   ! albertel  294:                         if (grep(/^$group$/,@studentsgroups)) {
        !           295:                             push(@Students,$studenthash);
1.130     raeburn   296:                             $groupcheck = 1;
                    297:                             last;
                    298:                         }
                    299:                     }
                    300:                     if ($groupcheck) {
                    301:                         last;
                    302:                     }
                    303:                 }
1.60      matthew   304:             }
1.59      matthew   305:         }
                    306:     }
                    307:     #
                    308:     # Put the consolidated section data in the right place
1.123     albertel  309:     if ($env{'request.course.sec'} !~ /^\s*$/) {
                    310:         @Sections = ($env{'request.course.sec'});
1.69      matthew   311:     } else {
                    312:         @Sections = sort {$a cmp $b} keys(%Sections);
                    313:         unshift(@Sections,'all'); # Put 'all' at the front of the list
                    314:     }
1.130     raeburn   315:     # Sort the groups
                    316:     @Groups = sort {$a cmp $b} keys(%{$studentgroups});
                    317:     unshift(@Groups,'all'); # Put 'all' at the front of the list
                    318: 
1.59      matthew   319:     #
                    320:     # Sort the Students
                    321:     my $sortby = 'fullname';
1.123     albertel  322:     $sortby = $env{'form.sort'} if (exists($env{'form.sort'}));
1.127     albertel  323:     my @TmpStudents = sort { lc($a->{$sortby}) cmp lc($b->{$sortby}) ||
1.126     albertel  324:                              lc($a->{'fullname'}) cmp lc($b->{'fullname'}) ||
                    325: 			     lc($a->{'username'}) cmp lc($b->{'username'}) } @Students;
1.60      matthew   326:     @Students = @TmpStudents;
1.59      matthew   327:     # 
                    328:     # Now deal with that current student thing....
1.72      matthew   329:     $curr_student = undef;
1.123     albertel  330:     if (exists($env{'form.SelectedStudent'})) {
1.59      matthew   331:         my ($current_uname,$current_dom) = 
1.123     albertel  332:             split(':',$env{'form.SelectedStudent'});
1.59      matthew   333:         my $i;
                    334:         for ($i = 0; $i<=$#Students; $i++) {
                    335:             next if (($Students[$i]->{'username'} ne $current_uname) || 
                    336:                      ($Students[$i]->{'domain'}   ne $current_dom));
1.60      matthew   337:             $curr_student = $Students[$i];
1.59      matthew   338:             last; # If we get here, we have our student.
                    339:         }
1.72      matthew   340:         if (defined($curr_student)) {
                    341:             if ($i == 0) {
                    342:                 $prev_student = undef;
                    343:             } else {
                    344:                 $prev_student = $Students[$i-1];
                    345:             }
                    346:             if ($i == $#Students) {
                    347:                 $next_student = undef;
                    348:             } else {
                    349:                 $next_student = $Students[$i+1];
                    350:             }
1.59      matthew   351:         }
                    352:     }
1.61      matthew   353:     #
1.123     albertel  354:     if (exists($env{'form.StudentData'})) {
1.124     albertel  355: 	@SelectedStudentData = 
                    356: 	    &Apache::loncommon::get_env_multiple('form.StudentData');
1.61      matthew   357:     } else {
1.72      matthew   358:         @SelectedStudentData = ('username');
1.61      matthew   359:     }
                    360:     foreach (@SelectedStudentData) {
                    361:         if ($_ eq 'all') {
                    362:             @SelectedStudentData = ('all');
                    363:             last;
                    364:         }
                    365:     }
                    366:     #
                    367:     return;
                    368: }
                    369: 
1.119     matthew   370: #######################################################
                    371: #######################################################
                    372: 
                    373: =pod
                    374: 
                    375: =item get_selected_sections
                    376: 
                    377: Returns an array of the selected sections
                    378: 
                    379: =cut
                    380: 
                    381: #######################################################
                    382: #######################################################
                    383: sub get_selected_sections {
1.124     albertel  384:     my @selected_sections = 
                    385: 	&Apache::loncommon::get_env_multiple('form.Section');
1.119     matthew   386:     @selected_sections = ('all') if (! @selected_sections);
                    387:     foreach (@selected_sections) {
                    388:         if ($_ eq 'all') {
                    389:             @selected_sections = ('all');
                    390:         }
                    391:     }
                    392:     #
                    393:     # Deal with instructors with restricted section access
1.123     albertel  394:     if ($env{'request.course.sec'} !~ /^\s*$/) {
                    395:         @selected_sections = ($env{'request.course.sec'});
1.119     matthew   396:     }
                    397:     return @selected_sections;
                    398: }
                    399: 
                    400: #######################################################
                    401: #######################################################
1.130     raeburn   402:                                                                                     
                    403: =pod
                    404:                                                                                     
                    405: =item get_selected_groups
                    406:                                                                                     
                    407: Returns an array of the selected groups
                    408:                                                                                     
                    409: =cut
                    410:                                                                                     
                    411: #######################################################
                    412: #######################################################
                    413: sub get_selected_groups {
                    414:     my @selected_groups =
                    415:         &Apache::loncommon::get_env_multiple('form.Group');
                    416:     @selected_groups = ('all') if (! @selected_groups);
                    417:     foreach my $grp (@selected_groups) {
                    418:         if ($grp eq 'all') {
                    419:             @selected_groups = ('all');
                    420:             last;
                    421:         }
                    422:     }
                    423:     return @selected_groups;
                    424: }
                    425:                                                                                     
1.119     matthew   426: =pod
                    427: 
                    428: =item &section_and_enrollment_description
                    429: 
1.130     raeburn   430: Returns a string describing the currently selected section(s), group(s) and 
1.122     matthew   431: enrollment status.  
                    432: 
                    433: Inputs: mode = 'plaintext' or 'localized'  (defaults to 'localized')
                    434:     'plaintext' is used for example in Excel spreadsheets.
                    435: Returns: scalar description string.
                    436: 
1.119     matthew   437: =cut
                    438: 
                    439: #######################################################
                    440: #######################################################
                    441: sub section_and_enrollment_description {
1.122     matthew   442:     my ($mode) = @_;
                    443:     if (! defined($mode)) { $mode = 'localized'; }
1.119     matthew   444:     my @sections = &Apache::lonstatistics::get_selected_sections();
1.130     raeburn   445:     my @groups = &Apache::lonstatistics::get_selected_groups();
1.122     matthew   446:     my $description;
                    447:     if ($mode eq 'localized') {
1.130     raeburn   448:         $description = &mt('Unable to determine section, groups and enrollment');
1.122     matthew   449:     } elsif ($mode eq 'plaintext') {
1.130     raeburn   450:         $description = 'Unable to determine section, groups and enrollment';
1.122     matthew   451:     } else {
                    452:         $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description';
                    453:         &Apache::lonnet::logthis($description);
                    454:     }
1.130     raeburn   455:     $description = &section_or_group_text($mode,'section',@sections).
1.131   ! albertel  456: 	' '.&section_or_group_text($mode,'group',@groups);
1.130     raeburn   457:     if ($mode eq 'localized') {
                    458:         $description .= &mt(' [_1] enrollment status.',$env{'form.Status'});
                    459:     } elsif ($mode eq 'plaintext') {
                    460:         $description .= ' '.$env{'form.Status'}.' enrollment status.';
                    461:     }
                    462:     return $description;
                    463: }
                    464: 
                    465: #######################################################
                    466: #######################################################
                    467: 
                    468: sub section_or_group_text {
                    469:     my ($mode,$type,@items) = @_;
                    470:     my $text;
                    471:     my %phrases = ();
                    472:     %{$phrases{'section'}} = (
                    473:                               single => 'Section',
                    474:                               all => 'All sections',
                    475:                               plural => 'Sections',
                    476:                              );
                    477:     %{$phrases{'group'}} = (
                    478:                               single => 'Group',
                    479:                               all => 'All groups',
                    480:                               plural => 'Groups',
                    481:                              );
                    482:     if (scalar(@items) == 1 && $items[0] ne 'all') {
1.122     matthew   483:         if ($mode eq 'localized') {
1.130     raeburn   484:             $text = &mt('[_1] [_2].',$phrases{$type}{single},$items[0]);
1.122     matthew   485:         } elsif ($mode eq 'plaintext') {
1.130     raeburn   486:             $text = $phrases{$type}{single}.' '.$items[0].'.';
                    487: 
1.122     matthew   488:         }
1.130     raeburn   489:     } elsif (scalar(@items) && $items[0] eq 'all') {
1.122     matthew   490:         if ($mode eq 'localized') {
1.130     raeburn   491:             $text = &mt('[_1].',$phrases{$type}{all});
1.122     matthew   492:         } elsif ($mode eq 'plaintext') {
1.130     raeburn   493:             $text = $phrases{$type}{all}.'.';
1.122     matthew   494:         }
1.130     raeburn   495:     } elsif (scalar(@items)) {
                    496:         my $lastitem = pop(@items);
1.122     matthew   497:         if ($mode eq 'localized') {
1.130     raeburn   498:             $text = &mt('[_1] [_2] and [_3].',$phrases{$type}{plural},
                    499:                         join(', ',@items),$lastitem);
1.122     matthew   500:         } elsif ($mode eq 'plaintext') {
1.130     raeburn   501:             $text = $phrases{$type}{plural}.' '.join(', ',@items).' and '.
                    502:                     $lastitem.'.';
1.122     matthew   503:         }
1.119     matthew   504:     }
1.130     raeburn   505:     return $text;
1.119     matthew   506: }
1.71      matthew   507: 
                    508: 
                    509: =pod
                    510: 
                    511: =item get_students
                    512: 
                    513: Returns a list of the selected students
                    514: 
                    515: =cut
                    516: 
                    517: #######################################################
                    518: #######################################################
                    519: sub get_students {
                    520:     if (! @Students) {
                    521:         &PrepareClasslist()
                    522:     }
                    523:     return @Students;
                    524: }
                    525: 
1.61      matthew   526: #######################################################
                    527: #######################################################
                    528: 
                    529: =pod
                    530: 
                    531: =item &current_student()
                    532: 
                    533: Returns a pointer to a hash containing data about the currently
                    534: selected student.
                    535: 
                    536: =cut
                    537: 
                    538: #######################################################
                    539: #######################################################
                    540: sub current_student { 
1.72      matthew   541:     return $curr_student;
1.61      matthew   542: }
                    543: 
                    544: #######################################################
                    545: #######################################################
                    546: 
                    547: =pod
                    548: 
                    549: =item &previous_student()
                    550: 
                    551: Returns a pointer to a hash containing data about the student prior
                    552: in the list of students.  Or something.  
                    553: 
                    554: =cut
                    555: 
                    556: #######################################################
                    557: #######################################################
                    558: sub previous_student { 
1.72      matthew   559:     return $prev_student;
1.59      matthew   560: }
                    561: 
                    562: #######################################################
                    563: #######################################################
1.61      matthew   564: 
                    565: =pod
                    566: 
                    567: =item &next_student()
                    568: 
                    569: Returns a pointer to a hash containing data about the next student
                    570: to be viewed.
                    571: 
                    572: =cut
                    573: 
                    574: #######################################################
                    575: #######################################################
                    576: sub next_student { 
1.72      matthew   577:     return $next_student;
1.61      matthew   578: }
1.60      matthew   579: 
1.61      matthew   580: ##############################################
                    581: ##############################################
                    582: 
                    583: =pod 
                    584: 
                    585: =item &StudentDataSelect($elementname,$status,$numvisible,$selected)
                    586: 
                    587: Returns html for a selection box allowing the user to choose one (or more) 
                    588: of the fields of student data available (fullname, username, id, section, etc)
                    589: 
                    590: =over 4
                    591: 
                    592: =item $elementname The name of the HTML form element
                    593: 
                    594: =item $status 'multiple' or 'single' selection box
                    595: 
                    596: =item $numvisible The number of options to be visible
                    597: 
                    598: =back
1.60      matthew   599: 
                    600: =cut
                    601: 
1.61      matthew   602: ##############################################
                    603: ##############################################
                    604: sub StudentDataSelect {
                    605:     my ($elementname,$status,$numvisible)=@_;
                    606:     if ($numvisible < 1) {
                    607:         return;
                    608:     }
                    609:     #
                    610:     # Build the form element
                    611:     my $Str = "\n";
                    612:     $Str .= '<select name="'.$elementname.'" ';
                    613:     if ($status ne 'single') {
                    614:         $Str .= 'multiple="true" ';
                    615:     }
                    616:     $Str .= 'size="'.$numvisible.'" >'."\n";
                    617:     #
                    618:     # Deal with 'all'
                    619:     $Str .= '    <option value="all" ';
                    620:     foreach (@SelectedStudentData) {
                    621:         if ($_ eq 'all') {
                    622:             $Str .= 'selected ';
                    623:             last;
                    624:         }
                    625:     }
                    626:     $Str .= ">all</option>\n";
                    627:     #
                    628:     # Loop through the student data fields
                    629:     foreach my $item (@StudentDataOrder) {
                    630:         $Str .= '    <option value="'.$item.'" ';
                    631:         foreach (@SelectedStudentData) {
                    632:             if ($item eq $_ ) {
                    633:                 $Str .= 'selected ';
                    634:                 last;
                    635:             }
                    636:         }
                    637:         $Str .= '>'.$item."</option>\n";
                    638:     }
                    639:     $Str .= "</select>\n";
                    640:     return $Str;
1.60      matthew   641: }
                    642: 
1.115     matthew   643: #######################################################
                    644: #######################################################
                    645: 
                    646: =pod
                    647: 
                    648: =item &get_selected_maps($elementname)
                    649: 
                    650: Input: Name of the <select> form element used to specify the maps.
                    651: 
                    652: Returns: Array of symbs of selected maps or the description 'all'.
                    653:    If form.$elementname does not exist, 'all' is returned.
                    654: 
                    655: =cut
                    656: 
                    657: #######################################################
                    658: #######################################################
                    659: sub get_selected_maps {
                    660:     my ($elementname) = @_;
1.124     albertel  661:     my @selected_maps = 
                    662: 	&Apache::loncommon::get_env_multiple('form.'.$elementname);
                    663:     @selected_maps = ('all') if (! @selected_maps);
1.118     matthew   664:     foreach my $map (@selected_maps) {
                    665:         if ($map eq 'all') {
                    666:             @selected_maps = ('all');
                    667:             last;
                    668:         }
                    669:     }
1.115     matthew   670:     return @selected_maps;
                    671: }
                    672: 
                    673: 
                    674: #######################################################
                    675: #######################################################
                    676: 
                    677: =pod
                    678: 
1.116     matthew   679: =item &selected_sequences_with_assessments
1.115     matthew   680: 
                    681: Retrieve the sequences which were selected by the user to show.  
                    682: 
                    683: Input: $mode: scalar.  Either 'selected' or 'all'.  If not specified,
                    684:     'selected' is used.
                    685: 
                    686: Returns: an array containing a navmap object and navmap resources, 
                    687:     or an array containing a scalar with an error message.
                    688: 
                    689: =cut
                    690: 
                    691: #######################################################
                    692: #######################################################
1.116     matthew   693: sub selected_sequences_with_assessments {
1.115     matthew   694:     my ($mode) = @_;
                    695:     $mode = 'selected' if (! defined($mode));
                    696:     my $navmap = Apache::lonnavmaps::navmap->new();
                    697:     if (!defined($navmap)) {
                    698:         return ('Can not open Coursemap');
                    699:     }
                    700:     #
                    701:     my @sequences = $navmap->retrieveResources(undef,
                    702:                                                sub { shift->is_map(); },1,0,1);
                    703:     my @sequences_with_assessments;
                    704:     for my $sequence ($navmap->getById('0.0'), @sequences) {
1.120     matthew   705: 	if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
1.115     matthew   706:             push(@sequences_with_assessments,$sequence);
                    707:         }
                    708:     }
                    709:     #
                    710:     my @sequences_to_show;
                    711:     foreach my $sequence (@sequences_with_assessments) {
                    712:         if ($mode eq 'all') {
                    713:             push (@sequences_to_show,$sequence);
                    714:         } elsif ($mode eq 'selected') {
1.116     matthew   715:             foreach my $map_symb (&get_selected_maps('Maps')) {
1.115     matthew   716:                 if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
                    717:                     push (@sequences_to_show,$sequence);
                    718:                     last; # Only put it in once
                    719:                 }
                    720:             }
                    721:         }
                    722: 
                    723:     }
                    724:     return $navmap,@sequences_to_show;
                    725: }
                    726: 
1.60      matthew   727: ##############################################
                    728: ##############################################
                    729: 
                    730: =pod 
                    731: 
1.115     matthew   732: =item &map_select($elementname,$status,$numvisible,$restriction) 
1.60      matthew   733: 
                    734: Returns html for a selection box allowing the user to choose one (or more) 
                    735: of the sequences in the course.  The values of the sequences are the symbs.
                    736: If the top sequence is selected, the value 'top' will result.
                    737: 
                    738: =over 4
                    739: 
                    740: =item $elementname The name of the HTML form element
                    741: 
                    742: =item $status 'multiple' or 'single' selection box
                    743: 
                    744: =item $numvisible The number of options to be visible
                    745: 
                    746: =back
                    747: 
                    748: =cut
                    749: 
                    750: ##############################################
                    751: ##############################################
1.115     matthew   752: sub map_select {
                    753:     my ($elementname,$status,$numvisible)=@_;
1.60      matthew   754:     if ($numvisible < 1) {
                    755:         return;
                    756:     }
                    757:     #
                    758:     # Set up array of selected items
1.115     matthew   759:     my @selected_maps = &get_selected_maps($elementname);
1.60      matthew   760:     #
                    761:     # Build the form element
1.115     matthew   762:     my $form = "\n";
                    763:     $form .= '<select name="'.$elementname.'" ';
1.60      matthew   764:     if ($status ne 'single') {
1.115     matthew   765:         $form .= 'multiple="true" ';
1.60      matthew   766:     }
1.115     matthew   767:     $form .= 'size="'.$numvisible.'" >'."\n";
1.60      matthew   768:     #
1.61      matthew   769:     # Put in option for 'all'
1.115     matthew   770:     $form .= '    <option value="all" ';
1.118     matthew   771:     if ($selected_maps[0] eq 'all') {
                    772:         $form .= 'selected ';
1.61      matthew   773:     }
1.115     matthew   774:     $form .= ">all</option>\n";
1.61      matthew   775:     #
1.60      matthew   776:     # Loop through the sequences
1.117     matthew   777:     my @sequences = &selected_sequences_with_assessments('all');
1.115     matthew   778:     my $navmap;
                    779:     if (!ref($sequences[0])) {
                    780:         return $sequences[0];
                    781:     } else {
                    782:         $navmap = shift(@sequences);
                    783:     }
                    784:     foreach my $seq (@sequences){
                    785:         $form .= '    <option value="'.$seq->symb.'" ';
                    786:         foreach (@selected_maps) {
                    787:             if ($seq->symb eq $_) {
                    788:                 $form .= 'selected ';
1.60      matthew   789:                 last;
                    790:             }
                    791:         }
1.115     matthew   792:         $form .= '>'.$seq->compTitle."</option>\n";
1.60      matthew   793:     }
1.115     matthew   794:     $form .= "</select>\n";
                    795:     return $form;
1.60      matthew   796: }
                    797: 
                    798: ##############################################
                    799: ##############################################
                    800: 
                    801: =pod 
                    802: 
                    803: =item &SectionSelect($elementname,$status,$numvisible) 
                    804: 
                    805: Returns html for a selection box allowing the user to choose one (or more) 
                    806: of the sections in the course.  
                    807: 
1.119     matthew   808: Uses the package variables @Sections
1.60      matthew   809: =over 4
                    810: 
                    811: =item $elementname The name of the HTML form element
                    812: 
                    813: =item $status 'multiple' or 'single' selection box
                    814: 
                    815: =item $numvisible The number of options to be visible
                    816: 
                    817: =back
                    818: 
                    819: =cut
                    820: 
                    821: ##############################################
                    822: ##############################################
                    823: sub SectionSelect {
                    824:     my ($elementname,$status,$numvisible)=@_;
                    825:     if ($numvisible < 1) {
                    826:         return;
                    827:     }
                    828:     #
1.71      matthew   829:     # Make sure we have the data we need to continue
                    830:     if (! @Sections) {
                    831:         &PrepareClasslist()
                    832:     }
                    833:     #
1.60      matthew   834:     # Build the form element
                    835:     my $Str = "\n";
                    836:     $Str .= '<select name="'.$elementname.'" ';
                    837:     if ($status ne 'single') {
                    838:         $Str .= 'multiple="true" ';
                    839:     }
                    840:     $Str .= 'size="'.$numvisible.'" >'."\n";
                    841:     #
                    842:     # Loop through the sequences
                    843:     foreach my $s (@Sections) {
                    844:         $Str .= '    <option value="'.$s.'" ';
1.119     matthew   845:         foreach (&get_selected_sections()) {
1.61      matthew   846:             if ($s eq $_) {
1.60      matthew   847:                 $Str .= 'selected ';
                    848:                 last;
                    849:             }
                    850:         }
                    851:         $Str .= '>'.$s."</option>\n";
                    852:     }
                    853:     $Str .= "</select>\n";
                    854:     return $Str;
1.80      matthew   855: }
                    856: 
1.130     raeburn   857: ##############################################
                    858: ##############################################
                    859:                                                                                     
                    860: =pod
                    861:                                                                                     
                    862: =item &GroupSelect($elementname,$status,$numvisible)
                    863:                                                                                     
                    864: Returns html for a selection box allowing the user to choose one (or more)
                    865: of the groups in the course.
                    866:                                                                                     
                    867: Uses the package variables @Groups
                    868: =over 4
                    869:                                                                                     
                    870: =item $elementname The name of the HTML form element
                    871:                                                                                     
                    872: =item $status 'multiple' or 'single' selection box
                    873:                                                                                     
                    874: =item $numvisible The number of options to be visible
                    875:                                                                                     
                    876: =back
                    877:                                                                                     
                    878: =cut
                    879:                                                                                     
                    880: ##############################################
                    881: ##############################################
                    882: sub GroupSelect {
                    883:     my ($elementname,$status,$numvisible)=@_;
                    884:     if ($numvisible < 1) {
                    885:         return;
                    886:     }
                    887:     #
                    888:     # Make sure we have the data we need to continue
                    889:     if (! @Groups) {
                    890:         &PrepareClasslist();
                    891:     }
                    892:     #
                    893:     # Build the form element
                    894:     my $Str = "\n";
                    895:     $Str .= '<select name="'.$elementname.'" ';
                    896:     if ($status ne 'single') {
                    897:         $Str .= 'multiple="true" ';
                    898:     }
                    899:     $Str .= 'size="'.$numvisible.'" >'."\n";
                    900:     #
                    901:     # Loop through the groups
                    902:     foreach my $s (@Groups) {
                    903:         $Str .= '    <option value="'.$s.'" ';
                    904:         foreach my $group (&get_selected_groups()) {
                    905:             if ($s eq $group) {
                    906:                 $Str .= 'selected ';
                    907:                 last;
                    908:             }
                    909:         }
                    910:         $Str .= '>'.$s."</option>\n";
                    911:     }
                    912:     $Str .= "</select>\n";
                    913: }
                    914: 
                    915: 
1.61      matthew   916: ##################################################
                    917: ##################################################
1.60      matthew   918: sub DisplayClasslist {
                    919:     my ($r)=@_;
1.107     matthew   920:     &Apache::lonhtmlcommon::add_breadcrumb
                    921:         ({text=>'Select One Student'});
1.60      matthew   922:     #
1.105     matthew   923:     # Output some of the standard interface components
                    924:     my $Str;
1.107     matthew   925:     $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Select One Student');
1.105     matthew   926:     $Str .= '<p><table cellspacing="5">'."\n";
                    927:     $Str .= '<tr>';
                    928:     $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
1.130     raeburn   929:     $Str .= '<th align="center"><b>'.&mt('Groups').'</b></th>';
1.105     matthew   930:     $Str .= '<th align="center"><b>'.&mt('Enrollment Status').'</b></th>';
                    931:     $Str .= '</tr>'.$/;
                    932:     $Str .= '<tr>';
                    933:     $Str .= '<td>'.
                    934:         &Apache::lonstatistics::SectionSelect('Section','multiple',5).
                    935:         '</td>';
1.130     raeburn   936:     $Str .=  '<td>'.
                    937:         &Apache::lonstatistics::GroupSelect('Group','multiple',5).
                    938:         '</td>';
1.105     matthew   939:     $Str .= '<td>'.
                    940:         &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
                    941:         '</td>';
                    942:     
                    943:     $Str .= '</tr>'.$/;
                    944:     $Str .= '</table></p>';
                    945:     $Str .= '<input type="submit" name="selectstudent" value="'.
                    946:         &mt('Update Display').'" />';
                    947:     $r->print($Str);
                    948:     $r->rflush();
                    949:     #
1.130     raeburn   950:     my @Fields = ('fullname','username','domain','id','section','status','groups');
1.60      matthew   951:     #
1.105     matthew   952:     $Str = '';
1.119     matthew   953:     my @selected_sections = &get_selected_sections();
1.78      matthew   954:     if (! @Students) {
1.119     matthew   955:         if ($selected_sections[0] eq 'all') { 
1.123     albertel  956:             if (lc($env{'form.Status'}) eq 'any') {
1.106     matthew   957:                 $Str .= '<h2>'.
                    958:                     &mt('There are no students in the course.').
                    959:                     '</h2>';
1.123     albertel  960:             } elsif (lc($env{'form.Status'}) eq 'active') {
1.106     matthew   961:                 $Str .= '<h2>'.
                    962:                 &mt('There are no currently enrolled students in the course.').
                    963:                     '</h2>';
1.123     albertel  964:             } elsif (lc($env{'form.Status'}) eq 'expired') {
1.106     matthew   965:                 $Str .= '<h2>'.
                    966:                     &mt('There are no previously enrolled students in the course.').
                    967:                         '</h2>';
1.78      matthew   968:             }
                    969:         } else { 
                    970:             my $sections;
1.123     albertel  971:             if (lc($env{'form.Status'}) eq 'any') {
1.106     matthew   972:                 $Str .= '<h2>'.
                    973:                     &mt('There are no students in the selected sections.').
                    974:                     '</h2>';
1.123     albertel  975:             } elsif (lc($env{'form.Status'}) eq 'active') {
1.106     matthew   976:                 $Str .= '<h2>'.
                    977:                     &mt('There are no currently enrolled students in the selected sections.').
                    978:                     '</h2>';
1.123     albertel  979:             } elsif (lc($env{'form.Status'}) eq 'expired') {
1.106     matthew   980:                 $Str .= '<h2>'.
                    981:                     &mt('There are no previously enrolled students in the selected sections.').
                    982:                     '</h2>';
1.78      matthew   983:             }
                    984:         }
                    985:         $Str.= '<a href="/adm/statistics?reportSelected=student_assessment">'.
1.106     matthew   986:             &mt('Click here to return to the chart').'</a>';
1.78      matthew   987:         $r->print($Str);
                    988:         $r->rflush();
                    989:         return;
                    990:     }
                    991: 
1.76      matthew   992:     # "Click" is asinine but it is probably not my place to change the world.
1.78      matthew   993:     $Str .= '<h2>Click on a students name or username to view their chart</h2>';
1.60      matthew   994:     $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";
                    995:     $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";
                    996:     foreach my $field (@Fields) {
1.101     matthew   997:         $Str .= '<th><a href="/adm/statistics?'.
                    998:             'reportSelected=student_assessment&'.
                    999:             'selectstudent=1&'.
1.106     matthew  1000:             'sort='.$field.'">'.&mt($field).
1.60      matthew  1001:             '</a></th>';
                   1002:     }
                   1003:     $Str .= '</tr>'."\n";
                   1004:     #
                   1005:     my $alternate = 0;
1.65      matthew  1006:     foreach my $student (@Students) { # @Students is a package variable
1.60      matthew  1007:         my $sname = $student->{'username'}.':'.$student->{'domain'};
                   1008:         if($alternate) {
                   1009:             $Str .= '<tr bgcolor="#ffffe6">';
                   1010:         } else {
                   1011:             $Str .= '<tr bgcolor="#ffffc6">';
                   1012:         }
                   1013:         $alternate = ($alternate + 1) % 2;
                   1014:         #
                   1015:         foreach my $field (@Fields) {
                   1016:             $Str .= '<td>';
1.78      matthew  1017:             if ($field eq 'fullname' || $field eq 'username') {
1.60      matthew  1018:                 $Str .= '<a href="/adm/statistics?reportSelected=';
1.65      matthew  1019:                 $Str .= &Apache::lonnet::escape('student_assessment');
1.123     albertel 1020:                 $Str .= '&sort='.&Apache::lonnet::escape($env{'form.sort'});
1.72      matthew  1021:                 $Str .= '&SelectedStudent=';
1.61      matthew  1022:                 $Str .= &Apache::lonnet::escape($sname).'">';
1.60      matthew  1023:                 $Str .= $student->{$field}.'&nbsp';
                   1024:                 $Str .= '</a>';
1.106     matthew  1025:             } elsif ($field eq 'status') {
                   1026:                 $Str .= &mt($student->{$field});
1.60      matthew  1027:             } else {
                   1028:                 $Str .= $student->{$field};
                   1029:             }
                   1030:             $Str .= '</td>';
                   1031:         }
                   1032:         $Str .= "</tr>\n";
                   1033:     }
                   1034:     $Str .= '</table></td></tr></table>'."\n";
                   1035:     #
                   1036:     $r->print($Str);
                   1037:     $r->rflush();
                   1038:     #
                   1039:     return;
                   1040: }
                   1041: 
1.65      matthew  1042: ##############################################
                   1043: ##############################################
1.33      stredwic 1044: sub CreateMainMenu {
1.65      matthew  1045:     #
1.85      matthew  1046:     # Define menu data
                   1047:     my @reports = ({ internal_name => 'problem_statistics',
                   1048:                      name => &mt('Overall Problem Statistics'),
                   1049:                      short_description => 
                   1050:     &mt('Student performance statistics on all problems.'),
                   1051:                  },
                   1052:                    { internal_name => 'problem_analysis',
                   1053:                      name => &mt('Detailed Problem Analysis'),
                   1054:                      short_description => 
                   1055:     &mt('Detailed statistics and graphs of student performance on problems.'),
                   1056:                  },
1.89      matthew  1057:                    { internal_name => 'submissiontime_analysis',
1.94      matthew  1058:                      name => &mt('Submission Time Plots'),
1.89      matthew  1059:                      short_description => 
                   1060:     &mt('Display and analysis of submission times on assessments.'),
                   1061:                  },
1.97      matthew  1062:                    { internal_name => 'student_submission_reports',
                   1063:                      name => &mt('Student Submission Reports'),
                   1064:                      short_description => 
1.111     matthew  1065:     &mt('Prepare reports of student submissions.'),
1.97      matthew  1066:                  },
1.104     matthew  1067:                    { internal_name => 'survey_reports',
                   1068:                      name => &mt('Survey Reports'),
                   1069:                      short_description => 
                   1070:     &mt('Prepare reports on survey results.'),
                   1071:                  },
1.94      matthew  1072:                    { internal_name => 'correct_problems_plot',
                   1073:                      name => &mt('Correct Problems Plot'),
                   1074:                      short_description => 
                   1075:     &mt('Display a histogram of student performance in the course.'),
                   1076:                  },
1.128     albertel 1077: #                   { internal_name => 'grading_analysis',
                   1078: #                     name => &mt('Detailed Grading Analysis'),
                   1079: #                     short_description => 
                   1080: #    &mt('Display statistics about who graded who.'),
                   1081: #                 },
1.88      matthew  1082: #                   { internal_name => 'student_assessment',
                   1083: #                     name => &mt('Problem Status Chart'),
                   1084: #                     short_description => 
                   1085: #    &mt('Brief view of each students performance in course.'),
                   1086: #                 },
1.85      matthew  1087:                    # 'percentage'  => 'Correct-problems Plot',
                   1088:                    # 'activitylog' => 'Activity Log',
                   1089:                    );
1.65      matthew  1090:     #
1.85      matthew  1091:     # Create the menu
                   1092:     my $Str;
1.98      matthew  1093:     $Str .= '<h2>'.&mt('Please select a report to generate').'</h2>';
1.85      matthew  1094:     foreach my $reportdata (@reports) {
1.87      matthew  1095:         $Str .='    <h3><a href="/adm/statistics?reportSelected='.
1.85      matthew  1096:             $reportdata->{'internal_name'}.'" >'.
1.87      matthew  1097:             $reportdata->{'name'}."</a></h3>\n";
                   1098:         $Str .= '    '.('&nbsp;'x8).$reportdata->{'short_description'}.
                   1099:             "\n";
1.85      matthew  1100:     }
                   1101:     $Str .="</dl>\n";
1.65      matthew  1102:     #
1.33      stredwic 1103:     return $Str;
                   1104: }
                   1105: 
1.65      matthew  1106: ##############################################
                   1107: ##############################################
1.1       albertel 1108: sub handler {
1.31      minaeibi 1109:     my $r=shift;
1.65      matthew  1110:     my $c = $r->connection();
                   1111:     #
                   1112:     # Check for overloading
1.51      www      1113:     my $loaderror=&Apache::lonnet::overloaderror($r);
                   1114:     if ($loaderror) { return $loaderror; }
                   1115:     $loaderror=
                   1116:        &Apache::lonnet::overloaderror($r,
1.123     albertel 1117:          $env{'course.'.$env{'request.course.id'}.'.home'});
1.51      www      1118:     if ($loaderror) { return $loaderror; }
1.65      matthew  1119:     #
                   1120:     # Check for access
1.123     albertel 1121:     if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) {
                   1122:         $env{'user.error.msg'}=
1.69      matthew  1123:             $r->uri.":vgr:0:0:Cannot view grades for complete course";
                   1124:         if (! &Apache::lonnet::allowed('vgr',
1.123     albertel 1125:                       $env{'request.course.id'}.'/'.$env{'request.course.sec'})) {
                   1126:             $env{'user.error.msg'}=
1.69      matthew  1127:                 $r->uri.":vgr:0:0:Cannot view grades with given role";
                   1128:             return HTTP_NOT_ACCEPTABLE;
                   1129:         }
1.27      stredwic 1130:     }
1.65      matthew  1131:     #
                   1132:     # Send the header
1.92      www      1133:     &Apache::loncommon::no_cache($r);
                   1134:     &Apache::loncommon::content_type($r,'text/html');
1.27      stredwic 1135:     $r->send_http_header;
1.92      www      1136:     if ($r->header_only) { return OK; }
1.65      matthew  1137:     #
                   1138:     # Extract form elements from query string
1.60      matthew  1139:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.65      matthew  1140:                                             ['sort','reportSelected',
1.72      matthew  1141:                                              'SelectedStudent']);
1.65      matthew  1142:     #
                   1143:     # Give the LON-CAPA page header
1.109     matthew  1144:     my $style = <<ENDSTYLE;
                   1145: <style type="text/css">
                   1146:     ul.sub_studentans { list-style-type: none }
                   1147:     ul.sub_correctans { list-style-type: none }
1.110     matthew  1148:     tr.even           { background-color: \#CCCCCC }
                   1149:     td.essay          { border: 1px solid gray; }
1.109     matthew  1150: </style>
                   1151: ENDSTYLE
1.129     albertel 1152:       
                   1153:     $r->print(&Apache::loncommon::start_page('Course Statistics and Charts',
                   1154: 					     $style));
1.65      matthew  1155:     $r->rflush();
1.85      matthew  1156:     # 
                   1157:     # Either print out a menu for them or send them to a report
1.98      matthew  1158:     &Apache::lonhtmlcommon::clear_breadcrumbs();
                   1159:     &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
1.100     matthew  1160:                                             title=>'Statistics',
                   1161:                                             text =>'Statistics',
1.98      matthew  1162:                                             faq=>139,
                   1163:                                             bug=>'Statistics and Charts'});
1.123     albertel 1164:     if (! exists($env{'form.reportSelected'}) || 
                   1165:         $env{'form.reportSelected'} eq '') {
1.98      matthew  1166:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
1.99      matthew  1167:                   (undef,&mt('Statistics Main Page')).
1.98      matthew  1168:                   &CreateMainMenu());
1.85      matthew  1169:     } else {
1.65      matthew  1170:     #
1.85      matthew  1171:         if (! &Apache::lonmysql::verify_sql_connection()) {
                   1172:             my $serveradmin = $r->dir_config('lonAdmEMail');
                   1173:             $r->print('<h2><font color="Red">'.
                   1174:                       &mt('Unable to connect to database!').
                   1175:                       '</font></h2>');
                   1176:             $r->print('<p>'.
                   1177:                       &mt('Please notify the server administrator ').
                   1178:                       '<b>'.$serveradmin.'</b></p>');
                   1179:             $r->print('<p>'.
                   1180:                       &mt('Course Statistics and Charts cannot be '.
                   1181:                           'retrieved until the database is restarted.  '.
                   1182:                           'Your data is intact but cannot be displayed '.
                   1183:                           'at this time.').'</p>');
1.129     albertel 1184:             $r->print(&Apache::loncommon::end_page());
1.85      matthew  1185:             return;
                   1186:         }
                   1187:         #
                   1188:         # Clean out the caches
1.123     albertel 1189:         if (exists($env{'form.ClearCache'})) {
                   1190:             &Apache::loncoursedata::delete_caches($env{'requres.course.id'});
1.85      matthew  1191:         }
                   1192:         #
                   1193:         # Begin form output
                   1194:         $r->print('<form name="Statistics" ');
                   1195:         $r->print('method="post" action="/adm/statistics">');
                   1196:         $r->rflush();
                   1197:         #
1.123     albertel 1198:         my $GoToPage = $env{'form.reportSelected'};
1.90      matthew  1199:         #
1.85      matthew  1200:         $r->print('<input type="hidden" name="reportSelected" value="'.
                   1201:                   $GoToPage.'">');
                   1202:         if($GoToPage eq 'activitylog') {
1.65      matthew  1203: #        &Apache::lonproblemstatistics::Activity();
1.85      matthew  1204:         } elsif($GoToPage eq 'problem_statistics') {
1.98      matthew  1205:             &Apache::lonhtmlcommon::add_breadcrumb
                   1206:                 ({href=>'/adm/statistics?reportselected=problem_statistics',
1.100     matthew  1207:                   text=>'Overall Problem Statistics'});
1.85      matthew  1208:             &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
                   1209:         } elsif($GoToPage eq 'problem_analysis') {
1.98      matthew  1210:             &Apache::lonhtmlcommon::add_breadcrumb
                   1211:                 ({href=>'/adm/statistics?reportselected=problem_analysis',
1.100     matthew  1212:                   text=>'Detailed Problem Analysis'});
1.85      matthew  1213:             &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
1.89      matthew  1214:         } elsif($GoToPage eq 'submissiontime_analysis') {
1.98      matthew  1215:             &Apache::lonhtmlcommon::add_breadcrumb
                   1216:                 ({href=>
                   1217:                       '/adm/statistics?reportselected=submissiontime_analysis',
1.100     matthew  1218:                       text=>'Submission Time Plots'});
1.89      matthew  1219:             &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
1.97      matthew  1220:         } elsif($GoToPage eq 'student_submission_reports') {
1.98      matthew  1221:             &Apache::lonhtmlcommon::add_breadcrumb
                   1222:                 ({href=>
                   1223:                   '/adm/statistics?reportselected=student_submission_reports',
1.100     matthew  1224:                   text=>'Student Submission Reports'});
1.97      matthew  1225:             &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
1.104     matthew  1226:         } elsif($GoToPage eq 'survey_reports') {
                   1227:             &Apache::lonhtmlcommon::add_breadcrumb
                   1228:                 ({href=>
                   1229:                   '/adm/statistics?reportselected=survey_reports',
                   1230:                   text=>'Survey Reports'});
                   1231:             &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
1.94      matthew  1232:         } elsif($GoToPage eq 'correct_problems_plot') {
1.98      matthew  1233:             &Apache::lonhtmlcommon::add_breadcrumb
                   1234:                 ({href=>'/adm/statistics?reportselected=correct_problems_plot',
1.100     matthew  1235:                   text=>'Correct Problems Plot'});
1.94      matthew  1236:             &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
1.85      matthew  1237:         } elsif($GoToPage eq 'student_assessment') {
1.98      matthew  1238:             &Apache::lonhtmlcommon::clear_breadcrumbs();
                   1239:             &Apache::lonhtmlcommon::add_breadcrumb
                   1240:                 ({href=>'/adm/statistics?reportselected=student_assessment',
1.100     matthew  1241:                   text=>'Chart'});
1.85      matthew  1242:             &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
1.128     albertel 1243:         } elsif($GoToPage eq 'grading_analysis') {
                   1244:             &Apache::lonhtmlcommon::add_breadcrumb
                   1245:                 ({href=>'/adm/statistics?reportselected=grading_anaylsis',
                   1246:                   text=>'Grading Analysis'});
                   1247:             &Apache::longradinganalysis::build_grading_analysis_page($r,$c);
                   1248: 	}
1.85      matthew  1249:         #
                   1250:         $r->print("</form>\n");
1.65      matthew  1251:     }
1.129     albertel 1252:     $r->print(&Apache::loncommon::end_page());
1.65      matthew  1253:     $r->rflush();
                   1254:     #
1.27      stredwic 1255:     return OK;
1.1       albertel 1256: }
1.65      matthew  1257: 
1.1       albertel 1258: 1;
1.59      matthew  1259: 
1.65      matthew  1260: #######################################################
                   1261: #######################################################
                   1262: 
1.59      matthew  1263: =pod
                   1264: 
                   1265: =back
                   1266: 
                   1267: =cut
1.65      matthew  1268: 
                   1269: #######################################################
                   1270: #######################################################
1.59      matthew  1271: 
1.1       albertel 1272: __END__
1.31      minaeibi 1273: 

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>