PersianDateTime.php in Persian Date for Drupal 8 8.4

Namespace

Drupal\persian_date\Element

File

src/Element/PersianDateTime.php

<?php

/**
 * Created by PhpStorm.
 * User: evolve
 * Date: 9/26/17
 * Time: 8:41 PM
 */
namespace Drupal\persian_date\Element;

use Drupal\Core\Datetime\DrupalDateTime;
use Drupal\Core\Datetime\Element\Datetime;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Annotation\FormElement;
use Drupal\persian_date\Plugin\Datetime\PersianDrupalDateTime;

/**
 * Class PersianDateTime
 * @package Drupal\persian_date\Element
 * @FormElement("persian_datetime")
 */
class PersianDateTime extends Datetime {
  public function getInfo() {
    $info = parent::getInfo();
    $info['#date_date_element'] = 'text';
    return $info;
  }
  public static function formatExample($format) {
    if (!static::$dateExample) {
      static::$dateExample = new PersianDrupalDateTime();
    }
    return static::$dateExample
      ->format($format);
  }
  public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
    if ($input !== FALSE) {
      $date_input = $element['#date_date_element'] != 'none' && !empty($input['date']) ? $input['date'] : '';
      $time_input = $element['#date_time_element'] != 'none' && !empty($input['time']) ? $input['time'] : '';
      $date_format = $element['#date_date_element'] != 'none' ? static::getHtml5DateFormat($element) : '';
      $time_format = $element['#date_time_element'] != 'none' ? static::getHtml5TimeFormat($element) : '';
      $timezone = !empty($element['#date_timezone']) ? $element['#date_timezone'] : NULL;

      // Seconds will be omitted in a post in case there's no entry.
      if (!empty($time_input) && strlen($time_input) == 5) {
        $time_input .= ':00';
      }
      try {
        $date_time_format = trim($date_format . ' ' . $time_format);
        $date_time_input = trim($date_input . ' ' . $time_input);
        $date = PersianDrupalDateTime::createFromFormat($date_time_format, $date_time_input, $timezone);
        $date = DrupalDateTime::createFromDateTime($date
          ->getDateTime());
      } catch (\Exception $e) {
        $date = NULL;
      }
      $input = [
        'date' => $date_input,
        'time' => $time_input,
        'object' => $date,
      ];
    }
    else {
      $date = $element['#default_value'];
      if ($date instanceof DrupalDateTime && !$date
        ->hasErrors()) {
        $input = [
          'date' => $date
            ->format($element['#date_date_format']),
          'time' => $date
            ->format($element['#date_time_format']),
          'object' => $date,
        ];
      }
      else {
        $input = [
          'date' => '',
          'time' => '',
          'object' => NULL,
        ];
      }
    }
    return $input;
  }

  /**
   * @inheritdoc
   */
  public static function processDatetime(&$element, FormStateInterface $form_state, &$complete_form) {

    // The value callback has populated the #value array.
    $date = !empty($element['#value']['object']) ? $element['#value']['object'] : NULL;
    if (is_object($date) && get_class($date) === DrupalDateTime::class) {
      $element['#value']['object'] = PersianDrupalDateTime::createFromDrupalDateTime($date);
    }
    return parent::processDatetime($element, $form_state, $complete_form);
  }

}

Classes

Name	Description
PersianDateTime	Class PersianDateTime @package Drupal\persian_date\Element