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Differences Between: [Versions 39 and 401]

   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   * Select plugin data controller
  19   *
  20   * @package   customfield_select
  21   * @copyright 2018 Daniel Neis Araujo <daniel@moodle.com>
  22   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  namespace customfield_select;
  26  
  27  defined('MOODLE_INTERNAL') || die;
  28  
  29  /**
  30   * Class data
  31   *
  32   * @package customfield_select
  33   * @copyright 2018 Daniel Neis Araujo <daniel@moodle.com>
  34   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35   */
  36  class data_controller extends \core_customfield\data_controller {
  37  
  38      /**
  39       * Return the name of the field where the information is stored
  40       * @return string
  41       */
  42      public function datafield() : string {
  43          return 'intvalue';
  44      }
  45  
  46      /**
  47       * Returns the default value as it would be stored in the database (not in human-readable format).
  48       *
  49       * @return mixed
  50       */
  51      public function get_default_value() {
  52          $defaultvalue = $this->get_field()->get_configdata_property('defaultvalue');
  53          if ('' . $defaultvalue !== '') {
  54              $key = array_search($defaultvalue, $this->get_field()->get_options());
  55              if ($key !== false) {
  56                  return $key;
  57              }
  58          }
  59          return 0;
  60      }
  61  
  62      /**
  63       * Add fields for editing a textarea field.
  64       *
  65       * @param \MoodleQuickForm $mform
  66       */
  67      public function instance_form_definition(\MoodleQuickForm $mform) {
  68          $field = $this->get_field();
  69          $config = $field->get('configdata');
  70          $options = $field->get_options();
  71          $formattedoptions = array();
  72          $context = $this->get_field()->get_handler()->get_configuration_context();
  73          foreach ($options as $key => $option) {
  74              // Multilang formatting with filters.
  75              $formattedoptions[$key] = format_string($option, true, ['context' => $context]);
  76          }
  77  
  78          $elementname = $this->get_form_element_name();
  79          $mform->addElement('select', $elementname, $this->get_field()->get_formatted_name(), $formattedoptions);
  80  
  81          if (($defaultkey = array_search($config['defaultvalue'], $options)) !== false) {
  82              $mform->setDefault($elementname, $defaultkey);
  83          }
  84          if ($field->get_configdata_property('required')) {
  85              $mform->addRule($elementname, null, 'required', null, 'client');
  86          }
  87      }
  88  
  89      /**
  90       * Validates data for this field.
  91       *
  92       * @param array $data
  93       * @param array $files
  94       * @return array
  95       */
  96      public function instance_form_validation(array $data, array $files) : array {
  97          $errors = parent::instance_form_validation($data, $files);
  98          if ($this->get_field()->get_configdata_property('required')) {
  99              // Standard required rule does not work on select element.
 100              $elementname = $this->get_form_element_name();
 101              if (empty($data[$elementname])) {
 102                  $errors[$elementname] = get_string('err_required', 'form');
 103              }
 104          }
 105          return $errors;
 106      }
 107  
 108      /**
 109       * Returns value in a human-readable format
 110       *
 111       * @return mixed|null value or null if empty
 112       */
 113      public function export_value() {
 114          $value = $this->get_value();
 115  
 116          if ($this->is_empty($value)) {
 117              return null;
 118          }
 119  
 120          $options = $this->get_field()->get_options();
 121          if (array_key_exists($value, $options)) {
 122              return format_string($options[$value], true,
 123                  ['context' => $this->get_field()->get_handler()->get_configuration_context()]);
 124          }
 125  
 126          return null;
 127      }
 128  }