PriceModifierForm.php in Price 3.x

Namespace

Drupal\price\Form

File

src/Form/PriceModifierForm.php

<?php

namespace Drupal\price\Form;

use Drupal\Core\Entity\EntityForm;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
class PriceModifierForm extends EntityForm {

  /**
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity manager.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager) {
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('entity_type.manager'));
  }

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {
    $form = parent::form($form, $form_state);
    $entity = $this->entity;
    $entity_type = $entity
      ->getEntityType();
    $entity_label = $entity_type
      ->getLabel();
    if ($this->operation == 'add') {
      $form['#title'] = $this
        ->t('Add ' . $entity_label);
    }
    else {
      $form['#title'] = $this
        ->t('Edit %label ' . $entity_label, [
        '%label' => $entity
          ->label(),
      ]);
    }
    $form['label'] = [
      '#title' => t('Label'),
      '#type' => 'textfield',
      '#default_value' => $entity
        ->label(),
      '#description' => $this
        ->t('The human-readable name of this entity.'),
      '#required' => TRUE,
      '#size' => 30,
    ];
    $form['id'] = [
      '#type' => 'machine_name',
      '#default_value' => $entity
        ->id(),
      '#maxlength' => EntityTypeInterface::ID_MAX_LENGTH,
      '#disabled' => !$entity
        ->isNew(),
      '#machine_name' => [
        'exists' => [
          $this,
          'exists',
        ],
      ],
      '#description' => $this
        ->t('A unique machine-readable name for this entity. It must only contain lowercase letters, numbers, and underscores.'),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
    parent::validateForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    $entity = $this->entity;
    $entity_type = $entity
      ->getEntityType();
    $entity_label = $entity_type
      ->getLabel();
    $entity
      ->set('id', trim($entity
      ->id()));
    $entity
      ->set('label', trim($entity
      ->label()));
    $status = $entity
      ->save();
    if ($status == SAVED_UPDATED) {
      drupal_set_message($this
        ->t($entity_label . ' %label has been updated.', [
        '%label' => $entity
          ->label(),
      ]));
    }
    else {
      drupal_set_message($this
        ->t($entity_label . ' %label has been created.', [
        '%label' => $entity
          ->label(),
      ]));
    }
    $form_state
      ->setRedirect('entity.' . $entity_type
      ->id() . '.collection');
  }

  /**
   * Check whether the entity type exists.
   *
   * @param $id
   * @return bool
   */
  public function exists($id) {
    return !empty($this->entityTypeManager
      ->getStorage($this->entity
      ->getEntityType()
      ->id())
      ->load($id));
  }

}

Classes

Name	Description
PriceModifierForm