CodeIgniter: Select from database function

gistfile1.aw

public function get_ENTITY_by_FIELD($field)
{
	log_message('debug', __METHOD__);

	$columns = array(
		$this->id
	);
	
	$result =
		$this->db
			->select($columns)
			->from($this->table)
			->where($this->field, $field)
			->get();
			
	if (!$result) $this->common->log_database_error($this->db->last_query(), $this->db->_error_message(), $this->db->_error_number());

	return $result->result_array();
}

log_database_error: https://gist.github.com/2633658