On Apr 6, 2005 12:32 PM, [EMAIL PROTECTED]
<[EMAIL PROTECTED]> wrote:
>
> <cfset myCar = createObject("component","com.car").init()>
> <cfset carDAO.read(myCar,form.vin_number)>
> <cfif myCar.getType() is "truck">
> <cfset myCar.towBoat()>
> <cfelse>
> Sorry, you can't tow a boat with your car
> </cfif>
Instead of asking the car what type of car it is, why don't you just
ask it whether it can tow boats?
<cfif myCar.canTowBoats()>
You can have your SUV and Truck CFCs always return true, and your
SportsCar CFC always return false. Later, if you add a Motorcycle CFC
and a Sedan CFC you don't need to change the code that works with
cars.
The code above could be rewritten like so.
<cfset carDAO.read(myCar,form.vin_number)>
<cfif myCar.canTowBoats()>
<cfset myCar.towBoat()>
<cfelse>
Sorry, you can't tow a boat with your car
</cfif>
Patrick
--
Patrick McElhaney
704.560.9117
http://pmcelhaney.weblogs.us
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