public function RulesListForm::buildForm in Custom filter 2.0.x

Create the form that list the rules.

Overrides FormInterface::buildForm

File

src/Form/RulesListForm.php, line 35

Class

RulesListForm

Defines a form to list the rules.

Namespace

Drupal\customfilter\Form

Code

public function buildForm(array $form, FormStateInterface $form_state, CustomFilter $customfilter = NULL) {
  $this->entity = $customfilter;
  $form['rules'] = [
    '#type' => 'table',
    '#tree' => 'true',
    '#header' => [
      $this
        ->t('Rule'),
      $this
        ->t('Machine name'),
      [
        'data' => $this
          ->t('Enabled'),
        'class' => [
          'checkbox',
        ],
      ],
      $this
        ->t('Weight'),
      $this
        ->t('Parent'),
      [
        'data' => $this
          ->t('Operations'),
        'colspan' => 2,
      ],
    ],
    '#empty' => $this
      ->t('There are no items yet. <a href="@add-url">Add an item.</a>', [
      '@add-url' => Url::fromRoute('customfilter.rules.add', [
        'customfilter' => $this->entity
          ->id(),
      ])
        ->toString(),
    ]),
    // TableDrag: Each array value is a list of callback arguments for
    // drupal_add_tabledrag(). The #id of the table is automatically
    // prepended if there is none, an HTML ID is auto-generated.
    '#tabledrag' => [
      [
        'action' => 'order',
        'relationship' => 'sibling',
        'group' => 'rules-order-weight',
      ],
      [
        'action' => 'match',
        'relationship' => 'parent',
        'group' => 'rule-prid',
        'subgroup' => 'rule-prid',
        'source' => 'rule-rid',
        'hidden' => TRUE,
      ],
    ],
  ];

  // Build the table rows and columns.
  // The first nested level in the render array forms the table row, on which
  // you likely want to set #attributes and #weight.
  // Each child element on the second level represents a table column cell in
  // the respective table row, which are render elements on their own. For
  // single output elements, use the table cell itself for the render element.
  // If a cell should contain multiple elements, simply use nested sub-keys
  // to build the render element structure for drupal_render() as you would
  // everywhere else.
  $entities = $this->entity
    ->getRules('', TRUE);
  if (count($entities) > 0) {
    $form['fid'] = [
      '#type' => 'hidden',
      '#value' => $this->entity
        ->id(),
    ];
  }
  $maxWeight = count($this->entity->rules);
  $this
    ->rulesTree($form, $entities, $maxWeight, 0);
  $form['actions'] = [
    '#type' => 'actions',
  ];
  $form['actions']['submit'] = [
    '#type' => 'submit',
    '#value' => $this
      ->t('Save changes'),
  ];
  return $form;
}