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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   * Extract context vault preprocessor.
  19   *
  20   * @package    mod_forum
  21   * @copyright  2019 Ryan Wyllie <ryan@moodle.com>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  namespace mod_forum\local\vaults\preprocessors;
  26  
  27  defined('MOODLE_INTERNAL') || die();
  28  
  29  use context;
  30  use context_helper;
  31  
  32  /**
  33   * Extract context vault preprocessor.
  34   *
  35   * @copyright  2019 Ryan Wyllie <ryan@moodle.com>
  36   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  37   */
  38  class extract_context {
  39      /**
  40       * Extract the contexts from a list of records.
  41       *
  42       * @param stdClass[] $records The list of records which have context properties
  43       * @return context[] List of contexts matching the records.
  44       */
  45      public function execute(array $records) : array {
  46          return array_map(function($record) {
  47              $contextid = $record->ctxid;
  48              context_helper::preload_from_record($record);
  49              $context = context::instance_by_id($contextid);
  50              return $context;
  51          }, $records);
  52      }
  53  }