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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  namespace core_question\bank;
  18  
  19  /**
  20   * Question bank columns for the preview action icon.
  21   *
  22   * @copyright  2009 Tim Hunt
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  class preview_action_column extends action_column_base {
  26      public function get_name() {
  27          return 'previewaction';
  28      }
  29  
  30      protected function display_content($question, $rowclasses) {
  31          global $PAGE;
  32          if (question_has_capability_on($question, 'use')) {
  33              echo $PAGE->get_renderer('core_question')->question_preview_link(
  34                      $question->id, $this->qbank->get_most_specific_context(), false);
  35          }
  36      }
  37  
  38      public function get_required_fields() {
  39          return array('q.id');
  40      }
  41  }