mod/glossary/rate.php

   1 <?php   // $Id$
   2
   3 //  Collect ratings, store them, then return to where we came from
   4
   5
   6     require_once('../../config.php');
   7     require_once('lib.php');
   8
   9     $glossaryid = required_param('glossaryid', PARAM_INT); // The forum the rated posts are from
  10
  11     if (!$glossary = get_record('glossary', 'id', $glossaryid)) {
  12         error("Incorrect glossary id");
  13     }
  14
  15     if (!$course = get_record('course', 'id', $glossary->course)) {
  16         error("Course ID was incorrect");
  17     }
  18
  19     if (!$cm = get_coursemodule_from_instance('glossary', $glossary->id)) {
  20         error("Course Module ID was incorrect");
  21     }
  22
  23     require_login($course, false, $cm);
  24
  25     if (isguestuser()) {
  26         error("Guests are not allowed to rate entries.");
  27     }
  28
  29     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  30
  31     if (!$glossary->assessed) {
  32         error("Rating of items not allowed!");
  33     }
  34
  35     if ($glossary->assessed == 2) {
  36         require_capability('mod/glossary:rate', $context);
  37     }
  38
  39     if (!empty($_SERVER['HTTP_REFERER'])) {
  40         $returnurl = $_SERVER['HTTP_REFERER'];
  41     } else {
  42         $returnurl = $CFG->wwwroot.'/mod/glossary/view.php?id='.$cm->id;
  43     }
  44
  45     if ($data = data_submitted()) {    // form submitted
  46         foreach ((array)$data as $entryid => $rating) {
  47             if (!is_numeric($entryid)) {
  48                 continue;
  49             }
  50             if (!$entry = get_record('glossary_entries', 'id', $entryid)) {
  51                 continue;
  52             }
  53
  54             if ($entry->glossaryid != $glossary->id) {
  55                 error("This is not valid entry!");
  56             }
  57
  58             if ($glossary->assesstimestart and $glossary->assesstimefinish) {
  59                 if ($entry->timecreated < $glossary->assesstimestart or $entry->timecreated > $glossary->assesstimefinish) {
  60                     // we can not rate this, ignore it - this should not happen anyway unless teacher changes setting
  61                     continue;
  62                 }
  63             }
  64
  65             if ($entry->userid == $USER->id) {
  66                 //can not rate own entry
  67                 continue;
  68             }
  69
  70             if ($oldrating = get_record("glossary_ratings", "userid", $USER->id, "entryid", $entry->id)) {
  71                 //Check if we must delete the rate
  72                 if ($rating == -999) {
  73                     delete_records('glossary_ratings','userid',$oldrating->userid, 'entryid',$oldrating->entryid);
  74                     glossary_update_grades($glossary, $entry->userid);
  75
  76                 } else if ($rating != $oldrating->rating) {
  77                     $oldrating->rating = $rating;
  78                     $oldrating->time = time();
  79                     if (! update_record("glossary_ratings", $oldrating)) {
  80                         error("Could not update an old rating ($entry = $rating)");
  81                     }
  82                     glossary_update_grades($glossary, $entry->userid);
  83                 }
  84
  85             } else if ($rating >= 0) {
  86                 $newrating = new object();
  87                 $newrating->userid  = $USER->id;
  88                 $newrating->time    = time();
  89                 $newrating->entryid = $entry->id;
  90                 $newrating->rating  = $rating;
  91
  92                 if (! insert_record("glossary_ratings", $newrating)) {
  93                     error("Could not insert a new rating ($entry->id = $rating)");
  94                 }
  95                 glossary_update_grades($glossary, $entry->userid);
  96             }
  97         }
  98
  99         redirect($returnurl, get_string("ratingssaved", "glossary"));
 100
 101     } else {
 102         error("This page was not accessed correctly");
 103     }
 104
 105 ?>