content_entity_base-8.x-1.x-dev/src/Entity/Form/EntityTypeBaseForm.php

<?php

namespace Drupal\content_entity_base\Entity\Form;

use Drupal\Core\Entity\EntityForm;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\language\Entity\ContentLanguageSettings;

/**
 * Base form for category edit forms.
 */
class EntityTypeBaseForm extends EntityForm {

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

    // Get the content entity type.
    $content_entity_type = $this->getContentEntityTypeID();
    // Get the content entity type.
    $content_entity_label = $this->getContentEntityTypeLabel();

    /* @var \Drupal\content_entity_base\Entity\EntityTypeBaseInterface $entity_type */
    $entity_type = $this->entity;

    // Get the bundle entity type definition and the exportable entries.
    $exportable_config = $entity_type->getEntityType()->get('config_export');

    // Get the default field definitions or the overridden settings if editing.
    if ($this->operation == 'add') {
      $fields = $this->entityManager->getBaseFieldDefinitions($content_entity_type);
    }
    else {
      $fields = $this->entityManager->getFieldDefinitions($content_entity_type, $entity_type->id());
    }

    $form['label'] = array(
      '#type' => 'textfield',
      '#title' => t('Label'),
      '#maxlength' => 255,
      '#default_value' => $entity_type->label(),
      '#description' => t('Provide a label for this "%content_label" type to help identify it in the administration pages.', ['%content_label' => $content_entity_label]),
      '#required' => TRUE,
    );
    $form['id'] = array(
      '#type' => 'machine_name',
      '#default_value' => $entity_type->id(),
      '#machine_name' => array(
        'exists' => get_class($entity_type) . '::load',
      ),
      '#maxlength' => EntityTypeInterface::BUNDLE_MAX_LENGTH,
      '#disabled' => !$entity_type->isNew(),
    );

    $form['description'] = array(
      '#type' => 'textarea',
      '#default_value' => $entity_type->getDescription(),
      '#description' => t('Enter a description for this "%content_label" type.', ['%content_label' => $content_entity_label]),
      '#title' => t('Description'),
    );

    $form['additional_settings'] = array(
      '#type' => 'vertical_tabs',
      '#attached' => array(
        'library' => array('node/drupal.content_types'),
      ),
    );

    if (in_array('name_label', $exportable_config)) {
      $form['submission'] = array(
        '#type' => 'details',
        '#title' => t('Submission settings'),
        '#group' => 'additional_settings',
        '#open' => TRUE,
      );

      $form['name_label'] = array(
        '#title' => t('Title label'),
        '#type' => 'textfield',
        '#default_value' => $fields['name']->getLabel(),
        '#required' => TRUE,
        '#description' => t('This field is used to identify the entity but may
          or may not be displayed. By value set here will be used in the entity
          creation and edit forms.'),
        '#group' => 'submission',
      );
    }

    $form['workflow'] = array(
      '#type' => 'details',
      '#title' => t('Publishing options'),
      '#group' => 'additional_settings',
    );

    $form['revision'] = array(
      '#type' => 'checkbox',
      '#title' => t('Create new revision'),
      '#default_value' => $entity_type->shouldCreateNewRevision(),
      '#group' => 'workflow',
      '#description' => t('Create a new revision by default for this "%content_label" type.', ['%content_label' => $content_entity_label])
    );

    if ($this->moduleHandler->moduleExists('language')) {
      $form['language'] = array(
        '#type' => 'details',
        '#title' => t('Language settings'),
        '#group' => 'additional_settings',
      );

      $language_configuration = ContentLanguageSettings::loadByEntityTypeBundle($content_entity_type, $entity_type->id());
      $form['language']['language_configuration'] = array(
        '#type' => 'language_configuration',
        '#entity_information' => array(
          'entity_type' => $content_entity_type,
          'bundle' => $entity_type->id(),
        ),
        '#default_value' => $language_configuration,
      );

      $form['#submit'][] = 'language_configuration_element_submit';
    }

    $form['actions'] = array('#type' => 'actions');
    $form['actions']['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Save'),
    );

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    // Get the content entity type.
    $content_entity_type = $this->getContentEntityTypeID();
    // Get the content entity type.
    $content_entity_label = $this->getContentEntityTypeLabel();

    $entity_type = $this->entity;
    $status = $entity_type->save();

    $edit_link = $this->entity->link($this->t('Edit'));
    $logger = $this->logger($content_entity_type);

    $update_verb = 'updated';
    if ($status != SAVED_UPDATED) {
      $this->contentAddBodyField($entity_type->id());
      $update_verb = 'added';
    }

    drupal_set_message(t('%content_label entity type %label has been @verb.', [
      '%content_label' => $content_entity_label,
      '%label' => $entity_type->label(),
      '@verb' => $update_verb,
    ]));
    $logger->notice('%content_label entity type %label has been @verb.', [
      '%content_label' => $content_entity_label,
      '%label' => $entity_type->label(),
      '@verb' => $update_verb,
      'link' => $edit_link,
    ]);

    $form_state->setRedirectUrl($this->entity->urlInfo('collection'));
  }

  protected function getContentEntityTypeID() {
    return $this->entity->getEntityType()->getBundleOf();
  }
  protected function getContentEntityTypeLabel() {
    return $this->entityManager->getDefinition($this->getContentEntityTypeID())->getLabel();
  }

  protected function contentAddBodyField($entity_type_id, $label = 'Body') {
    // Get the content entity type.
    $content_entity_type = $this->getContentEntityTypeID();

    // Make the creation of a default body field optional. Do not create if
    // there is no field storage configuration.
    if (!FieldStorageConfig::loadByName($content_entity_type, 'body')) {
      return;
    }

    // Add or remove the body field, as needed.
    $field = FieldConfig::loadByName($content_entity_type, $entity_type_id, 'body');
    if (empty($field)) {
      $field = entity_create('field_config', array(
        'field_storage' => FieldStorageConfig::loadByName($content_entity_type, 'body'),
        'bundle' => $entity_type_id,
        'label' => $label,
        'settings' => array('display_summary' => FALSE),
      ));
      $field->save();

      // Assign widget settings for the 'default' form mode.
      entity_get_form_display($content_entity_type, $entity_type_id, 'default')
        ->setComponent('body', array(
          'type' => 'text_textarea_with_summary',
        ))
        ->save();

      // Assign display settings for 'default' view mode.
      entity_get_display($content_entity_type, $entity_type_id, 'default')
        ->setComponent('body', array(
          'label' => 'hidden',
          'type' => 'text_default',
        ))
        ->save();
    }

    return $field;
  }

}