/**
* Checks that the given instance's slug do not collide with table's real column
* names.
*
* If collision occurs, an error message will be registered on the given entity.
*
* @param \Field\Model\Entity\FieldInstance $instance Instance to validate
* @return void
*/
protected function _validateSlug($instance)
{
$slug = $instance->get('eav_attribute')->get('name');
$columns = $this->_table->schema()->columns();
if (in_array($slug, $columns)) {
$instance->get('eav_attribute')->errors('name', __d('field', 'The name "{0}" cannot be used as it collides with table column names.', $slug));
}
}
/**
* Triggers the callback "afterDetach", it also deletes all associated records
* in the "field_values" table.
*
* @param \Cake\Event\Event $event The event that was triggered
* @param \Field\Model\Entity\FieldInstance $instance The Field Instance that was deleted
* @param \ArrayObject $options the options passed to the delete method
* @return void
*/
public function afterDelete(Event $event, FieldInstance $instance, ArrayObject $options = null)
{
if (!empty($this->_deleted)) {
TableRegistry::get('Eav.EavAttributes')->delete($this->_deleted->get('eav_attribute'));
$instance->afterDetach();
$this->_deleted = null;
}
}