public EntityForm::getBaseFormId()
Returns a string identifying the base form.
string|null The string identifying the base form or NULL if this is not a base form.
Overrides BaseFormIdInterface::getBaseFormId
public function getBaseFormId() { // Assign ENTITYTYPE_form as base form ID to invoke corresponding // hook_form_alter(), #validate, #submit, and #theme callbacks, but only if // it is different from the actual form ID, since callbacks would be invoked // twice otherwise. $base_form_id = $this->entity->getEntityTypeId() . '_form'; if ($base_form_id == $this->getFormId()) { $base_form_id = NULL; } return $base_form_id; }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Entity!EntityForm.php/function/EntityForm::getBaseFormId/8.1.x