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   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 = optional_param('ratingarea', null, 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                                                   'itemid' => $itemid,
  43                                                   'scaleid' => $scaleid));
  44  if (!empty($ratingarea)) {
  45      $url->param('ratingarea', $ratingarea);
  46  }
  47  if (!empty($sort)) {
  48      $url->param('sort', $sort);
  49  }
  50  if (!empty($popup)) {
  51      $url->param('popup', $popup);
  52  }
  53  $PAGE->set_url($url);
  54  $PAGE->set_context($context);
  55  
  56  if ($popup) {
  57      $PAGE->set_pagelayout('popup');
  58  }
  59  
  60  if (!has_capability('moodle/rating:view', $context)) {
  61      print_error('noviewrate', 'rating');
  62  }
  63  if (!has_capability('moodle/rating:viewall', $context) and $USER->id != $item->userid) {
  64      print_error('noviewanyrate', 'rating');
  65  }
  66  
  67  switch ($sort) {
  68      case 'firstname':
  69          $sqlsort = "u.firstname ASC";
  70          break;
  71      case 'rating':
  72          $sqlsort = "r.rating ASC";
  73          break;
  74      default:
  75          $sqlsort = "r.timemodified ASC";
  76  }
  77  
  78  $scalemenu = make_grades_menu($scaleid);
  79  
  80  $strrating  = get_string('rating', 'rating');
  81  $strname    = get_string('name');
  82  $strtime    = get_string('time');
  83  
  84  $PAGE->set_title(get_string('allratingsforitem', 'rating'));
  85  echo $OUTPUT->header();
  86  
  87  $ratingoptions = new stdClass;
  88  $ratingoptions->context = $context;
  89  $ratingoptions->component = $component;
  90  $ratingoptions->ratingarea = $ratingarea;
  91  $ratingoptions->itemid = $itemid;
  92  $ratingoptions->sort = $sqlsort;
  93  
  94  $rm = new rating_manager();
  95  $ratings = $rm->get_all_ratings_for_item($ratingoptions);
  96  if (!$ratings) {
  97      $msg = get_string('noratings', 'rating');
  98      echo html_writer::tag('div', $msg, array('class' => 'mdl-align'));
  99  } else {
 100      // To get the sort URL, copy the current URL and remove any previous sort.
 101      $sorturl = new moodle_url($url);
 102      $sorturl->remove_params('sort');
 103  
 104      $table = new html_table;
 105      $table->cellpadding = 3;
 106      $table->cellspacing = 3;
 107      $table->attributes['class'] = 'generalbox ratingtable';
 108      $table->head = array(
 109          '',
 110          html_writer::link(new moodle_url($sorturl, array('sort' => 'firstname')), $strname),
 111          html_writer::link(new moodle_url($sorturl, array('sort' => 'rating')), $strrating),
 112          html_writer::link(new moodle_url($sorturl, array('sort' => 'time')), $strtime)
 113      );
 114      $table->colclasses = array('', 'firstname', 'rating', 'time');
 115      $table->data = array();
 116  
 117      // If the scale was changed after ratings were submitted some ratings may have a value above the current maximum.
 118      // We can't just do count($scalemenu) - 1 as custom scales start at index 1, not 0.
 119      $maxrating = max(array_keys($scalemenu));
 120  
 121      foreach ($ratings as $rating) {
 122          // Undo the aliasing of the user id column from user_picture::fields().
 123          // We could clone the rating object or preserve the rating id if we needed it again
 124          // but we don't.
 125          $rating->id = $rating->userid;
 126  
 127          $row = new html_table_row();
 128          $row->attributes['class'] = 'ratingitemheader';
 129          if ($course && $course->id) {
 130              $row->cells[] = $OUTPUT->user_picture($rating, array('courseid' => $course->id));
 131          } else {
 132              $row->cells[] = $OUTPUT->user_picture($rating);
 133          }
 134          $row->cells[] = fullname($rating);
 135          if ($rating->rating > $maxrating) {
 136              $rating->rating = $maxrating;
 137          }
 138          $row->cells[] = $scalemenu[$rating->rating];
 139          $row->cells[] = userdate($rating->timemodified);
 140          $table->data[] = $row;
 141      }
 142      echo html_writer::table($table);
 143  }
 144  if ($popup) {
 145      echo $OUTPUT->close_window_button();
 146  }
 147  echo $OUTPUT->footer();