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Differences Between: [Versions 311 and 400] [Versions 311 and 401] [Versions 311 and 402] [Versions 311 and 403]

   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  declare(strict_types=1);
  18  
  19  namespace mod_forum\completion;
  20  
  21  use core_completion\activity_custom_completion;
  22  
  23  /**
  24   * Activity custom completion subclass for the forum activity.
  25   *
  26   * Class for defining mod_forum's custom completion rules and fetching the completion statuses
  27   * of the custom completion rules for a given forum instance and a user.
  28   *
  29   * @package mod_forum
  30   * @copyright Simey Lameze <simey@moodle.com>
  31   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  32   */
  33  class custom_completion extends activity_custom_completion {
  34  
  35      /**
  36       * Fetches the completion state for a given completion rule.
  37       *
  38       * @param string $rule The completion rule.
  39       * @return int The completion state.
  40       */
  41      public function get_state(string $rule): int {
  42          global $DB;
  43  
  44          $this->validate_rule($rule);
  45  
  46          $userid = $this->userid;
  47          $forumid = $this->cm->instance;
  48  
  49          if (!$forum = $DB->get_record('forum', ['id' => $forumid])) {
  50              throw new \moodle_exception('Unable to find forum with id ' . $forumid);
  51          }
  52  
  53          $postcountparams = ['userid' => $userid, 'forumid' => $forumid];
  54          $postcountsql = "SELECT COUNT(*)
  55                             FROM {forum_posts} fp
  56                             JOIN {forum_discussions} fd ON fp.discussion = fd.id
  57                            WHERE fp.userid = :userid
  58                              AND fd.forum = :forumid";
  59  
  60          if ($rule == 'completiondiscussions') {
  61              $status = $forum->completiondiscussions <=
  62                  $DB->count_records('forum_discussions', ['forum' => $forumid, 'userid' => $userid]);
  63          } else if ($rule == 'completionreplies') {
  64              $status = $forum->completionreplies <=
  65                  $DB->get_field_sql($postcountsql . ' AND fp.parent <> 0', $postcountparams);
  66          } else if ($rule == 'completionposts') {
  67              $status = $forum->completionposts <= $DB->get_field_sql($postcountsql, $postcountparams);
  68          }
  69  
  70          return $status ? COMPLETION_COMPLETE : COMPLETION_INCOMPLETE;
  71      }
  72  
  73      /**
  74       * Fetch the list of custom completion rules that this module defines.
  75       *
  76       * @return array
  77       */
  78      public static function get_defined_custom_rules(): array {
  79          return [
  80              'completiondiscussions',
  81              'completionreplies',
  82              'completionposts',
  83          ];
  84      }
  85  
  86      /**
  87       * Returns an associative array of the descriptions of custom completion rules.
  88       *
  89       * @return array
  90       */
  91      public function get_custom_rule_descriptions(): array {
  92          $completiondiscussions = $this->cm->customdata['customcompletionrules']['completiondiscussions'] ?? 0;
  93          $completionreplies = $this->cm->customdata['customcompletionrules']['completionreplies'] ?? 0;
  94          $completionposts = $this->cm->customdata['customcompletionrules']['completionposts'] ?? 0;
  95  
  96          return [
  97              'completiondiscussions' => get_string('completiondetail:discussions', 'forum', $completiondiscussions),
  98              'completionreplies' => get_string('completiondetail:replies', 'forum', $completionreplies),
  99              'completionposts' => get_string('completiondetail:posts', 'forum', $completionposts),
 100          ];
 101      }
 102  
 103      /**
 104       * Returns an array of all completion rules, in the order they should be displayed to users.
 105       *
 106       * @return array
 107       */
 108      public function get_sort_order(): array {
 109          return [
 110              'completionview',
 111              'completiondiscussions',
 112              'completionreplies',
 113              'completionposts',
 114              'completionusegrade',
 115          ];
 116      }
 117  }