public function delete($model, $id) {
		$runtime = $this->runtime[$model->alias];

		$data = array();
		$fields = $this->_normalizeFields($model);
		foreach ($fields as $flag => $date) {
			if (true === $runtime || $flag === $runtime) {
				$data[$flag] = true;
				if ($date) {
					$data[$date] = date('Y-m-d H:i:s');
				}
				if ($flag === $runtime) {
					break;
				}
			}
		}

		$record = $model->find('first', array(
			'fields' => $model->primaryKey,
			'conditions' => array($model->primaryKey => $id),
			'recursive' => -1
		));

		if (!empty($record)) {
			$model->set($model->primaryKey, $id);
			unset($model->data[$model->alias]['modified']);
			unset($model->data[$model->alias]['updated']);
			return $model->save(array($model->alias => $data), false, array_keys($data));
		}

		return true;
	}