On Apr 2, 11:59 am, Frederick Cheung <frederick.che...@gmail.com>
wrote:
> On 2 Apr 2009, at 11:35, Rick wrote:
>
>
>
> > Hi I am learning rails and have hit a bit of a wall.
>
> > I have created methods previousley that work fine on a single object.
> > However in my latest project I am trying to calculate the total cost
> > of a group of phonecalls and I am having difficulty creating a method
> > to calculate this. I have a phonecall model and phonecall has a cost
> > attribute.
>
> > In my controller I am finding the @phonecalls
> > And in my view I want to say @phoncalls.total_cost
>
> > end
>
> You've defined a total_cost method on the PhoneCall class, but you're
> trying to call it on an instance of Array (that just happens to
> contain phone calls)
> The easiest way is probably to create a class method that takes as an
> argument the array and returns the total cost.
>
> Fred
Hi Fred thnaks for your time.
I thought that I had created a class method in the (phonecall class) .
Do you mean in the array class? And how do I do that. Is it not
possibl;e to create methods in the phonecall model file that act upon
a collection(array) of that object or do they have to be acting only
on a single instance of that object.
Once again thanks for your time.
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