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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   * A base class for actions that are an icon that lets you manipulate the question in some way.
  21   *
  22   * @copyright  2009 Tim Hunt
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  abstract class action_column_base extends column_base {
  27  
  28      protected function get_title() {
  29          return '&#160;';
  30      }
  31  
  32      public function get_extra_classes() {
  33          return array('iconcol');
  34      }
  35  
  36      protected function print_icon($icon, $title, $url) {
  37          global $OUTPUT;
  38          echo '<a title="' . $title . '" href="' . $url . '">
  39                  <img src="' . $OUTPUT->pix_url($icon) . '" class="iconsmall" alt="' . $title . '" /></a>';
  40      }
  41  
  42      public function get_required_fields() {
  43          // Createdby is required for permission checks.
  44          return array('q.id', 'q.createdby');
  45      }
  46  }