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('lib.php');
  31
  32 $contextid = required_param('contextid', PARAM_INT);
  33 $component = required_param('component', PARAM_ALPHAEXT);
  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     echo $OUTPUT->header();
  51     echo get_string('ratepermissiondenied', 'rating');
  52     echo $OUTPUT->footer();
  53     die();
  54 }
  55
  56 $rm = new rating_manager();
  57
  58 //check the module rating permissions
  59 //doing this check here rather than within rating_manager::get_ratings() so we can return a json error response
  60 $pluginpermissionsarray = $rm->get_plugin_permissions_array($context->id, $component);
  61
  62 if (!$pluginpermissionsarray['rate']) {
  63     $result->error = get_string('ratepermissiondenied', 'rating');
  64     echo json_encode($result);
  65     die();
  66 } else {
  67     $params = array(
  68         'context' => $context,
  69         'itemid' => $itemid,
  70         'scaleid' => $scaleid,
  71         'rating' => $userrating,
  72         'rateduserid' => $rateduserid);
  73
  74     if (!$rm->check_rating_is_valid($component, $params)) {
  75         echo $OUTPUT->header();
  76         echo get_string('ratinginvalid', 'rating');
  77         echo $OUTPUT->footer();
  78         die();
  79     }
  80 }
  81
  82 if ($userrating != RATING_UNSET_RATING) {
  83     $ratingoptions = new stdClass();
  84     $ratingoptions->context = $context;
  85     $ratingoptions->component = $component;
  86     $ratingoptions->itemid  = $itemid;
  87     $ratingoptions->scaleid = $scaleid;
  88     $ratingoptions->userid  = $USER->id;
  89
  90     $rating = new rating($ratingoptions);
  91     $rating->update_rating($userrating);
  92 } else { //delete the rating if the user set to Rate...
  93     $options = new stdClass();
  94     $options->contextid = $context->id;
  95     $options->component = $component;
  96     $options->userid = $USER->id;
  97     $options->itemid = $itemid;
  98
  99     $rm->delete_ratings($options);
 100 }
 101
 102 //todo add a setting to turn grade updating off for those who don't want them in gradebook
 103 //note that this needs to be done in both rate.php and rate_ajax.php
 104 if(true){
 105     //tell the module that its grades have changed
 106     if ( !$modinstance = $DB->get_record($cm->modname, array('id' => $cm->instance)) ) {
 107         print_error('invalidid');
 108     }
 109     $modinstance->cmidnumber = $cm->id; //MDL-12961
 110     $functionname = $cm->modname.'_update_grades';
 111     require_once($CFG->dirroot."/mod/{$cm->modname}/lib.php");
 112     if(function_exists($functionname)) {
 113         $functionname($modinstance, $rateduserid);
 114     }
 115 }
 116
 117 redirect($returnurl);