rating/index.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  * A page to display a list of ratings for a given item (forum post etc)
  19  *
  20  * @package    core_rating
  21  * @category   rating
  22  * @copyright  2010 Andrew Davis
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 require_once("../config.php");
  27 require_once("lib.php");
  28
  29 $contextid  = required_param('contextid', PARAM_INT);
  30 $component  = required_param('component', PARAM_COMPONENT);
  31 $ratingarea = required_param('ratingarea', PARAM_AREA);
  32 $itemid     = required_param('itemid', PARAM_INT);
  33 $scaleid    = required_param('scaleid', PARAM_INT);
  34 $sort       = optional_param('sort', '', PARAM_ALPHA);
  35 $popup      = optional_param('popup', 0, PARAM_INT); // Any non-zero value if in a popup window.
  36
  37 list($context, $course, $cm) = get_context_info_array($contextid);
  38 require_login($course, false, $cm);
  39
  40 $url = new moodle_url('/rating/index.php', array('contextid' => $contextid,
  41                                                  'component' => $component,
  42                                                  'ratingarea' => $ratingarea,
  43                                                  'itemid' => $itemid,
  44                                                  'scaleid' => $scaleid));
  45 if (!empty($sort)) {
  46     $url->param('sort', $sort);
  47 }
  48 if (!empty($popup)) {
  49     $url->param('popup', $popup);
  50 }
  51 $PAGE->set_url($url);
  52 $PAGE->set_context($context);
  53
  54 if ($popup) {
  55     $PAGE->set_pagelayout('popup');
  56 }
  57
  58 $params = array('contextid' => $contextid,
  59                 'component' => $component,
  60                 'ratingarea' => $ratingarea,
  61                 'itemid' => $itemid,
  62                 'scaleid' => $scaleid);
  63 if (!has_capability('moodle/rating:view', $context) ||
  64         !component_callback($component, 'rating_can_see_item_ratings', array($params), true)) {
  65     print_error('noviewrate', 'rating');
  66 }
  67
  68 $canviewallratings = has_capability('moodle/rating:viewall', $context);
  69
  70 switch ($sort) {
  71     case 'firstname':
  72         $sqlsort = "u.firstname ASC";
  73         break;
  74     case 'rating':
  75         $sqlsort = "r.rating ASC";
  76         break;
  77     default:
  78         $sqlsort = "r.timemodified ASC";
  79 }
  80
  81 $scalemenu = make_grades_menu($scaleid);
  82
  83 $strrating  = get_string('rating', 'rating');
  84 $strname    = get_string('name');
  85 $strtime    = get_string('time');
  86
  87 $PAGE->set_title(get_string('allratingsforitem', 'rating'));
  88 echo $OUTPUT->header();
  89
  90 $ratingoptions = new stdClass;
  91 $ratingoptions->context = $context;
  92 $ratingoptions->component = $component;
  93 $ratingoptions->ratingarea = $ratingarea;
  94 $ratingoptions->itemid = $itemid;
  95 $ratingoptions->sort = $sqlsort;
  96
  97 $rm = new rating_manager();
  98 $ratings = $rm->get_all_ratings_for_item($ratingoptions);
  99 if (!$ratings) {
 100     $msg = get_string('noratings', 'rating');
 101     echo html_writer::tag('div', $msg, array('class' => 'mdl-align'));
 102 } else {
 103     // To get the sort URL, copy the current URL and remove any previous sort.
 104     $sorturl = new moodle_url($url);
 105     $sorturl->remove_params('sort');
 106
 107     $table = new html_table;
 108     $table->cellpadding = 3;
 109     $table->cellspacing = 3;
 110     $table->attributes['class'] = 'generalbox ratingtable';
 111     $table->head = array(
 112         '',
 113         html_writer::link(new moodle_url($sorturl, array('sort' => 'firstname')), $strname),
 114         html_writer::link(new moodle_url($sorturl, array('sort' => 'rating')), $strrating),
 115         html_writer::link(new moodle_url($sorturl, array('sort' => 'time')), $strtime)
 116     );
 117     $table->colclasses = array('', 'firstname', 'rating', 'time');
 118     $table->data = array();
 119
 120     // If the scale was changed after ratings were submitted some ratings may have a value above the current maximum.
 121     // We can't just do count($scalemenu) - 1 as custom scales start at index 1, not 0.
 122     $maxrating = max(array_keys($scalemenu));
 123
 124     foreach ($ratings as $rating) {
 125         if (!$canviewallratings and $USER->id != $rating->userid) {
 126             continue;
 127         }
 128
 129         // Undo the aliasing of the user id column from user_picture::fields().
 130         // We could clone the rating object or preserve the rating id if we needed it again
 131         // but we don't.
 132         $rating->id = $rating->userid;
 133
 134         $row = new html_table_row();
 135         $row->attributes['class'] = 'ratingitemheader';
 136         if ($course && $course->id) {
 137             $row->cells[] = $OUTPUT->user_picture($rating, array('courseid' => $course->id));
 138         } else {
 139             $row->cells[] = $OUTPUT->user_picture($rating);
 140         }
 141         $row->cells[] = fullname($rating);
 142         if ($rating->rating > $maxrating) {
 143             $rating->rating = $maxrating;
 144         }
 145         $row->cells[] = $scalemenu[$rating->rating];
 146         $row->cells[] = userdate($rating->timemodified);
 147         $table->data[] = $row;
 148     }
 149     echo html_writer::table($table);
 150 }
 151 if ($popup) {
 152     echo $OUTPUT->close_window_button();
 153 }
 154 echo $OUTPUT->footer();