extended orm class to auto save created & updated datetimes.

orm.php

<?php

class ORM extends Kohana_ORM {

  public function create(Validation $validation = NULL) {

		if (isset($this->_table_columns['created_at'])) {
			$this->created_at = date('Y-m-d H:i:s');
		}
		if (isset($this->_table_columns['updated_at'])) {
			$this->updated_at = date('Y-m-d H:i:s');
		}
		return parent::create($validation);
	}

	public function update(Validation $validation = NULL) {

		if (isset($this->_table_columns['updated_at'])) {
			$this->updated_at = date('Y-m-d H:i:s');
		}
		return parent::update($validation);
	}
}