public FormBuilder::getFormId($form_arg, FormStateInterface &$form_state)
Determines the ID of a form.
Parameters
\Drupal\Core\Form\FormInterface|string $form_arg: The value is identical to that of self::getForm()'s $form_arg argument.
\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.
Return value
string The unique string identifying the desired form.
Overrides FormBuilderInterface::getFormId
File
- core/lib/Drupal/Core/Form/FormBuilder.php, line 182
Class
- FormBuilder
- Provides form building and processing.
Namespace
Drupal\Core\Form
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | public function getFormId($form_arg, FormStateInterface &$form_state) { // If the $form_arg is the name of a class, instantiate it. Don't allow // arbitrary strings to be passed to the class resolver. if (is_string($form_arg) && class_exists($form_arg)) { $form_arg = $this->classResolver->getInstanceFromDefinition($form_arg); } if (!is_object($form_arg) || !($form_arg instanceof FormInterface)) { throw new \InvalidArgumentException("The form argument $form_arg is not a valid form."); } // Add the $form_arg as the callback object and determine the form ID. $form_state->setFormObject($form_arg); if ($form_arg instanceof BaseFormIdInterface) { $form_state->addBuildInfo('base_form_id', $form_arg->getBaseFormId()); } return $form_arg->getFormId();} |
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