rating/rate.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * This page receives non-ajax rating submissions
  19  *
  20  * It is similar to rate_ajax.php. Unlike rate_ajax.php a return url is required.
  21  *
  22  * @package    core_rating
  23  * @category   rating
  24  * @copyright  2010 Andrew Davis
  25  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  26  */
  27
  28 require_once('../config.php');
  29 require_once($CFG->dirroot.'/rating/lib.php');
  30
  31 $contextid   = required_param('contextid', PARAM_INT);
  32 $component   = required_param('component', PARAM_COMPONENT);
  33 $ratingarea  = required_param('ratingarea', PARAM_AREA);
  34 $itemid      = required_param('itemid', PARAM_INT);
  35 $scaleid     = required_param('scaleid', PARAM_INT);
  36 $userrating  = required_param('rating', PARAM_INT);
  37 $rateduserid = required_param('rateduserid', PARAM_INT); // Which user is being rated. Required to update their grade.
  38 $returnurl   = required_param('returnurl', PARAM_LOCALURL); // Required for non-ajax requests.
  39
  40 $result = new stdClass;
  41
  42 list($context, $course, $cm) = get_context_info_array($contextid);
  43 require_login($course, false, $cm);
  44
  45 $contextid = null; // Now we have a context object, throw away the id from the user.
  46 $PAGE->set_context($context);
  47 $PAGE->set_url('/rating/rate.php', array('contextid' => $context->id));
  48
  49 if (!confirm_sesskey() || !has_capability('moodle/rating:rate', $context)) {
  50     throw new \moodle_exception('ratepermissiondenied', 'rating');
  51 }
  52
  53 $rm = new rating_manager();
  54
  55 // Check the module rating permissions.
  56 // Doing this check here rather than within rating_manager::get_ratings() so we can choose how to handle the error.
  57 $pluginpermissionsarray = $rm->get_plugin_permissions_array($context->id, $component, $ratingarea);
  58
  59 if (!$pluginpermissionsarray['rate']) {
  60     throw new \moodle_exception('ratepermissiondenied', 'rating');
  61 } else {
  62     $params = array(
  63         'context'     => $context,
  64         'component'   => $component,
  65         'ratingarea'  => $ratingarea,
  66         'itemid'      => $itemid,
  67         'scaleid'     => $scaleid,
  68         'rating'      => $userrating,
  69         'rateduserid' => $rateduserid
  70     );
  71     if (!$rm->check_rating_is_valid($params)) {
  72         echo $OUTPUT->header();
  73         echo get_string('ratinginvalid', 'rating');
  74         echo $OUTPUT->footer();
  75         die();
  76     }
  77 }
  78
  79 if ($userrating != RATING_UNSET_RATING) {
  80     $ratingoptions = new stdClass;
  81     $ratingoptions->context = $context;
  82     $ratingoptions->component = $component;
  83     $ratingoptions->ratingarea = $ratingarea;
  84     $ratingoptions->itemid  = $itemid;
  85     $ratingoptions->scaleid = $scaleid;
  86     $ratingoptions->userid  = $USER->id;
  87
  88     $rating = new rating($ratingoptions);
  89     $rating->update_rating($userrating);
  90 } else { // Delete the rating if the user set to "Rate..."
  91     $options = new stdClass;
  92     $options->contextid = $context->id;
  93     $options->component = $component;
  94     $options->ratingarea = $ratingarea;
  95     $options->userid = $USER->id;
  96     $options->itemid = $itemid;
  97
  98     $rm->delete_ratings($options);
  99 }
 100
 101 if (!empty($cm) && $context->contextlevel == CONTEXT_MODULE) {
 102     // Tell the module that its grades have changed.
 103     $modinstance = $DB->get_record($cm->modname, array('id' => $cm->instance), '*', MUST_EXIST);
 104     $modinstance->cmidnumber = $cm->id; // MDL-12961.
 105     $functionname = $cm->modname.'_update_grades';
 106     require_once($CFG->dirroot."/mod/{$cm->modname}/lib.php");
 107     if (function_exists($functionname)) {
 108         $functionname($modinstance, $rateduserid);
 109     }
 110 }
 111
 112 redirect($returnurl);