Form constructor.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

array The form structure.

See also

\Drupal\Core\Form\FormInterface::buildForm())

4 calls to DraggableListBuilderTrait::buildForm()

FilterFormatListBuilder::buildForm in core/modules/filter/src/FilterFormatListBuilder.php

Form constructor.

LanguageListBuilder::buildForm in core/modules/language/src/LanguageListBuilder.php

Form constructor.

SearchPageListBuilder::buildForm in core/modules/search/src/SearchPageListBuilder.php

Form constructor.

VocabularyListBuilder::buildForm in core/modules/taxonomy/src/VocabularyListBuilder.php

Form constructor.

4 methods override DraggableListBuilderTrait::buildForm()

FilterFormatListBuilder::buildForm in core/modules/filter/src/FilterFormatListBuilder.php

Form constructor.

LanguageListBuilder::buildForm in core/modules/language/src/LanguageListBuilder.php

Form constructor.

SearchPageListBuilder::buildForm in core/modules/search/src/SearchPageListBuilder.php

Form constructor.

VocabularyListBuilder::buildForm in core/modules/taxonomy/src/VocabularyListBuilder.php

Form constructor.

File

core/lib/Drupal/Core/Entity/DraggableListBuilderTrait.php, line 139

Class

DraggableListBuilderTrait

Provides a trait for draggable listings of entities.

Namespace

Drupal\Core\Entity

Code

public function buildForm(array $form, FormStateInterface $form_state) {
  $form[$this->entitiesKey] = [
    '#type' => 'table',
    '#header' => $this->buildHeader(),
    '#empty' => t('There are no @label yet.', [
      '@label' => $this->entityType
        ->getPluralLabel(),
    ]),
    '#tabledrag' => [
      [
        'action' => 'order',
        'relationship' => 'sibling',
        'group' => 'weight',
      ],
    ],
  ];
  $this->entities = $this->load();
  $delta = 10;
  // Change the delta of the weight field if there are more than 20 entities.
  if (!empty($this->weightKey)) {
    $count = count($this->entities);
    if ($count > 20) {
      $delta = ceil($count / 2);
    }
  }
  foreach ($this->entities as $entity) {
    $row = $this->buildRow($entity);
    if (isset($row['label'])) {
      $row['label'] = [
        '#plain_text' => $row['label'],
      ];
    }
    if (isset($row['weight'])) {
      $row['weight']['#delta'] = $delta;
    }
    $form[$this->entitiesKey][$entity->id()] = $row;
  }
  $form['actions']['#type'] = 'actions';
  $form['actions']['submit'] = [
    '#type' => 'submit',
    '#value' => t('Save'),
    '#button_type' => 'primary',
  ];
  return $form;
}

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