mod/forum/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
  10     $id = required_param('id',PARAM_INT);           // The course these ratings are part of
  11     $forumid = required_param('forumid',PARAM_INT); // The forum the rated posts are from
  12
  13     if (! $cm = get_coursemodule_from_instance('forum', $forumid, $id)) {
  14         error('Course Module ID was incorrect');
  15     }
  16
  17     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  18
  19     if (!has_capability('mod/forum:rate', $context)) {
  20         error('You do not have the permission to rate this post');
  21     }
  22
  23
  24     if (! $course = get_record("course", "id", $id)) {
  25         error("Course ID was incorrect");
  26     }
  27
  28     require_login($course->id);
  29
  30     $returntoview = false;
  31
  32     if (!$data = data_submitted("$CFG->wwwroot/mod/forum/discuss.php")) {    // form submitted
  33         if ($data = data_submitted("$CFG->wwwroot/mod/forum/view.php")) {    // Single forums are special case
  34             $returntoview = true;
  35         }
  36     }
  37
  38     if ($data) {
  39
  40         $lastpostid = 0;
  41
  42         foreach ((array)$data as $postid => $rating) {
  43             if ($postid == "id") {
  44                 continue;
  45             }
  46
  47             $postid = (int)$postid;
  48             $lastpostid = $postid;
  49
  50             if ($rating == FORUM_UNSET_POST_RATING) {
  51                 delete_records('forum_ratings', 'post', $postid, 'userid', $USER->id);
  52
  53             } else if ($oldrating = get_record("forum_ratings", "userid", $USER->id, "post", $postid)) {
  54                 if ($rating != $oldrating->rating) {
  55                     $oldrating->rating = $rating;
  56                     $oldrating->time = time();
  57                     if (! update_record("forum_ratings", $oldrating)) {
  58                         error("Could not update an old rating ($postid = $rating)");
  59                     }
  60                 }
  61             } else {
  62                 unset($newrating);
  63                 $newrating->userid = $USER->id;
  64                 $newrating->time = time();
  65                 $newrating->post = $postid;
  66                 $newrating->rating = $rating;
  67
  68                 if (! insert_record("forum_ratings", $newrating)) {
  69                     error("Could not insert a new rating ($postid = $rating)");
  70                 }
  71             }
  72         }
  73         if ($post = get_record('forum_posts', 'id', $lastpostid)) {    // To find discussion we're in
  74             if ($returntoview and ($discussion = get_record('forum_discussions', 'id', $post->discussion))) {
  75                 redirect("$CFG->wwwroot/mod/forum/view.php?f=$discussion->forum", get_string("ratingssaved", "forum"));
  76             } else {
  77                 redirect("$CFG->wwwroot/mod/forum/discuss.php?d=$post->discussion", get_string("ratingssaved", "forum"));
  78             }
  79         } else {
  80             redirect($_SERVER["HTTP_REFERER"], get_string("ratingssaved", "forum"));
  81         }
  82
  83     } else {
  84         error("This page was not accessed correctly");
  85     }
  86
  87 ?>