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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   * Question bank column for the duplicate action icon.
  19   *
  20   * @package   core_question
  21   * @copyright 2013 The Open University
  22   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  namespace core_question\bank;
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  
  29  /**
  30   * Question bank column for the duplicate action icon.
  31   *
  32   * @copyright 2013 The Open University
  33   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  34   */
  35  class copy_action_column extends menu_action_column_base {
  36      /** @var string avoids repeated calls to get_string('duplicate'). */
  37      protected $strcopy;
  38  
  39      public function init() {
  40          parent::init();
  41          $this->strcopy = get_string('duplicate');
  42      }
  43  
  44      public function get_name() {
  45          return 'copyaction';
  46      }
  47  
  48      protected function get_url_icon_and_label(\stdClass $question): array {
  49          if (!\question_bank::is_qtype_installed($question->qtype)) {
  50              // It sometimes happens that people end up with junk questions
  51              // in their question bank of a type that is no longer installed.
  52              // We cannot do most actions on them, because that leads to errors.
  53              return [null, null, null];
  54          }
  55  
  56          // To copy a question, you need permission to add a question in the same
  57          // category as the existing question, and ability to access the details of
  58          // the question being copied.
  59          if (question_has_capability_on($question, 'add') &&
  60                  (question_has_capability_on($question, 'edit') || question_has_capability_on($question, 'view'))) {
  61              return [$this->qbank->copy_question_moodle_url($question->id), 't/copy', $this->strcopy];
  62          }
  63          return [null, null, null];
  64      }
  65  }