/**
* Merges current form widget and validator schemas with the ones from the
* sfForm object passed as parameter. Please note it also merge defaults.
*
* @param sfForm $form The sfForm instance to merge with current form
*
* @throws \LogicException If one of the form has already been bound
*/
public function mergeForm(Form $form)
{
if (true === $this->isBound() || true === $form->isBound()) {
throw new \LogicException('A bound form cannot be merged');
}
$form = clone $form;
unset($form[self::$CSRFFieldName]);
$this->defaults = array_merge($this->defaults, $form->getDefaults());
foreach ($form->getWidgetSchema()->getPositions() as $field) {
$this->widgetSchema[$field] = $form->getWidget($field);
}
foreach ($form->getValidatorSchema()->getFields() as $field => $validator) {
$this->validatorSchema[$field] = $validator;
}
$this->getWidgetSchema()->setLabels(array_merge($this->getWidgetSchema()->getLabels(), $form->getWidgetSchema()->getLabels()));
$this->getWidgetSchema()->setHelps(array_merge($this->getWidgetSchema()->getHelps(), $form->getWidgetSchema()->getHelps()));
$this->mergePreValidator($form->getValidatorSchema()->getPreValidator());
$this->mergePostValidator($form->getValidatorSchema()->getPostValidator());
$this->resetFormFields();
}
