persian_date.module in Persian Date for Drupal 8 8

Contains persian_date.module.

File

persian_date.module

<?php

/**
 * @file
 * Contains persian_date.module.
 */
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function persian_date_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {

    // Main module help for the persian_date module.
    case 'help.page.persian_date':
      $twig = \Drupal::getContainer()
        ->get('twig');
      $output = $twig
        ->renderInline(file_get_contents(__DIR__ . '/resources/templates/help.html.twig'));
      return $output;
    default:
  }
}

/**
 * Replace form elements with persian ones
 *
 * Implements hook_element_info_alter().
 */
function persian_date_element_info_alter(array &$info) {
  $elements = array_intersect_key($info, array_flip([
    'date',
    'datetime',
    'datelist',
  ]));
  foreach ($elements as $name => &$config) {
    if (isset($config['#process'])) {
      foreach ($config['#process'] as &$process) {
        if (is_array($process)) {
          $process[0] = replace_with_equivalent_module_class($process[0]);
        }
      }
    }
    if (isset($config['#pre_render'])) {
      foreach ($config['#pre_render'] as &$process) {
        if (is_array($process)) {
          $process[0] = replace_with_equivalent_module_class($process[0]);
        }
      }
    }
    if (isset($config['#element_validate'])) {
      foreach ($config['#element_validate'] as &$process) {
        if (is_array($process)) {
          $process[0] = replace_with_equivalent_module_class($process[0]);
        }
      }
    }
    if (isset($config['#value_callback'])) {
      if (is_array($config['#value_callback'])) {
        $config['#value_callback'][0] = replace_with_equivalent_module_class($config['#value_callback'][0]);
      }
    }
  }
  $info = array_merge($info, $elements);
}

// helper method to replace classes
function replace_with_equivalent_module_class($string) {
  $replacements = [
    \Drupal\Core\Datetime\Element\Datelist::class => \Drupal\persian_date\Element\PersianDateList::class,
    \Drupal\Core\Render\Element\Date::class => \Drupal\persian_date\Element\PersianDate::class,
    \Drupal\Core\Datetime\Element\Datetime::class => \Drupal\persian_date\Element\PersianDateTime::class,
  ];
  foreach ($replacements as $search => $replacement) {
    $string = str_replace($search, $replacement, $string);
  }
  return $string;
}

/**
 * Replace date widgets with persian widgets
 *
 * Implements hook_field_widget_info_alter().
 */
function persian_date_field_widget_info_alter(array &$info) {

  // Let a new field type re-use an existing widget.
  $info['datetime_default']['class'] = \Drupal\persian_date\Plugin\Field\FieldWidget\PersianDateTimeDefaultWidget::class;
  $info['datetime_datelist']['class'] = \Drupal\persian_date\Plugin\Field\FieldWidget\PersianDateTimeDatelistWidget::class;
  $info['datetime_timestamp']['class'] = \Drupal\persian_date\Plugin\Field\FieldWidget\PersianTimestampDateTimeDefaultWidget::class;
  $info['datetime_timestamp']['provider'] = 'persian_date';
}

Functions

Name	Description
persian_date_element_info_alter	Replace form elements with persian ones
persian_date_field_widget_info_alter	Replace date widgets with persian widgets
persian_date_help	Implements hook_help().
replace_with_equivalent_module_class