public static function changeStatus($start, $end)
	{
		if ( empty($start) || ! is_string($start)) {
			throw new WorkflowException('$start must be a string');
		}

		if ( empty($end) || ! is_string($end)) {
			throw new WorkflowException('$end must be a string');
		}

		return 'from {'.$start.'} to {'.$end.'}';
	}
public static function changeStatus($start, $end)
	{
		if ( empty($start) || ! is_string($start)) {
			throw new WorkflowException('$start must be a string');
		}

		if ( empty($end) || ! is_string($end)) {
			throw new WorkflowException('$end must be a string');
		}

		return 'from {'.$start.'} to {'.$end.'}';
	}
public static function changeStatus ( $ start , $ end ) { if ( empty ( $ start ) || ! is_string ( $ start ) ) { throw new WorkflowException ( '$start must be a string' ) ; } if ( empty ( $ end ) || ! is_string ( $ end ) ) { throw new WorkflowException ( '$end must be a string' ) ; } return 'from {' . $ start . '} to {' . $ end . '}' ; }
Returns the scenario name for a change status action.

@param string $start the absolute start status Id
@param string $end the absolute end status Id
@throws WorkflowException
@return string the scenario name
Returns the scenario name for a change status action .