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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  /**
  19   * A search class to control whether hidden / deleted questions are hidden in the list.
  20   *
  21   * @package   core_question
  22   * @copyright 2013 Ray Morris
  23   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  namespace core_question\bank\search;
  27  defined('MOODLE_INTERNAL') || die();
  28  
  29  /**
  30   * This class controls whether hidden / deleted questions are hidden in the list.
  31   *
  32   * @copyright 2013 Ray Morris
  33   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  34   */
  35  class hidden_condition extends condition {
  36      /** @var bool Whether to include old "deleted" questions. */
  37      protected $hide;
  38  
  39      /** @var string SQL fragment to add to the where clause. */
  40      protected $where;
  41  
  42      /**
  43       * Constructor.
  44       * @param bool $hide whether to include old "deleted" questions.
  45       */
  46      public function __construct($hide = true) {
  47          $this->hide = $hide;
  48          if ($hide) {
  49              $this->where = 'q.hidden = 0';
  50          }
  51      }
  52  
  53      public function where() {
  54          return  $this->where;
  55      }
  56  
  57      /**
  58       * Print HTML to display the "Also show old questions" checkbox
  59       */
  60      public function display_options_adv() {
  61          echo \html_writer::start_div();
  62          echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'showhidden',
  63                                                     'value' => '0', 'id' => 'showhidden_off'));
  64          echo \html_writer::checkbox('showhidden', '1', (! $this->hide), get_string('showhidden', 'question'),
  65                                     array('id' => 'showhidden_on', 'class' => 'searchoptions'));
  66          echo \html_writer::end_div() . "\n";
  67      }
  68  }