rating/rate.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This page receives non-ajax rating submissions
  20  *
  21  * It is similar to rate_ajax.php. Unlike rate_ajax.php a return url is required.
  22  *
  23  * @package    core
  24  * @subpackage rating
  25  * @copyright  2010 Andrew Davis
  26  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  27  */
  28
  29 require_once('../config.php');
  30 require_once($CFG->dirroot.'/rating/lib.php');
  31
  32 $contextid   = required_param('contextid', PARAM_INT);
  33 $component   = required_param('component', PARAM_COMPONENT);
  34 $ratingarea  = required_param('ratingarea', PARAM_AREA);
  35 $itemid      = required_param('itemid', PARAM_INT);
  36 $scaleid     = required_param('scaleid', PARAM_INT);
  37 $userrating  = required_param('rating', PARAM_INT);
  38 $rateduserid = required_param('rateduserid', PARAM_INT);//which user is being rated. Required to update their grade
  39 $returnurl   = required_param('returnurl', PARAM_LOCALURL);//required for non-ajax requests
  40
  41 $result = new stdClass;
  42
  43 list($context, $course, $cm) = get_context_info_array($contextid);
  44 require_login($course, false, $cm);
  45
  46 $contextid = null;//now we have a context object throw away the id from the user
  47 $PAGE->set_context($context);
  48 $PAGE->set_url('/rating/rate.php', array('contextid' => $context->id));
  49
  50 if (!confirm_sesskey() || !has_capability('moodle/rating:rate',$context)) {
  51     echo $OUTPUT->header();
  52     echo get_string('ratepermissiondenied', 'rating');
  53     echo $OUTPUT->footer();
  54     die();
  55 }
  56
  57 $rm = new rating_manager();
  58
  59 //check the module rating permissions
  60 //doing this check here rather than within rating_manager::get_ratings() so we can return a json error response
  61 $pluginpermissionsarray = $rm->get_plugin_permissions_array($context->id, $component, $ratingarea);
  62
  63 if (!$pluginpermissionsarray['rate']) {
  64     $result->error = get_string('ratepermissiondenied', 'rating');
  65     echo json_encode($result);
  66     die();
  67 } else {
  68     $params = array(
  69         'context'     => $context,
  70         'component'   => $component,
  71         'ratingarea'  => $ratingarea,
  72         'itemid'      => $itemid,
  73         'scaleid'     => $scaleid,
  74         'rating'      => $userrating,
  75         'rateduserid' => $rateduserid
  76     );
  77     if (!$rm->check_rating_is_valid($params)) {
  78         echo $OUTPUT->header();
  79         echo get_string('ratinginvalid', 'rating');
  80         echo $OUTPUT->footer();
  81         die();
  82     }
  83 }
  84
  85 if ($userrating != RATING_UNSET_RATING) {
  86     $ratingoptions = new stdClass;
  87     $ratingoptions->context = $context;
  88     $ratingoptions->component = $component;
  89     $ratingoptions->ratingarea = $ratingarea;
  90     $ratingoptions->itemid  = $itemid;
  91     $ratingoptions->scaleid = $scaleid;
  92     $ratingoptions->userid  = $USER->id;
  93
  94     $rating = new rating($ratingoptions);
  95     $rating->update_rating($userrating);
  96 } else { //delete the rating if the user set to Rate...
  97     $options = new stdClass;
  98     $options->contextid = $context->id;
  99     $options->component = $component;
 100     $options->ratingarea = $ratingarea;
 101     $options->userid = $USER->id;
 102     $options->itemid = $itemid;
 103
 104     $rm->delete_ratings($options);
 105 }
 106
 107 //todo add a setting to turn grade updating off for those who don't want them in gradebook
 108 //note that this needs to be done in both rate.php and rate_ajax.php
 109 if (!empty($cm) && $context->contextlevel == CONTEXT_MODULE) {
 110     //tell the module that its grades have changed
 111     $modinstance = $DB->get_record($cm->modname, array('id' => $cm->instance), '*', MUST_EXIST);
 112     $modinstance->cmidnumber = $cm->id; //MDL-12961
 113     $functionname = $cm->modname.'_update_grades';
 114     require_once($CFG->dirroot."/mod/{$cm->modname}/lib.php");
 115     if (function_exists($functionname)) {
 116         $functionname($modinstance, $rateduserid);
 117     }
 118 }
 119
 120 redirect($returnurl);