Re: [PhillyOnRails] AR accessor problem

["Evan Weaver" <evan@cloudbur.st>]

Trying using:

self.cash = self.cash + tx.gain

or even

cash = self.cash + tx.gain

The syntax parser might be thinking "cash" is a local.

Evan

On 5/29/07, Cliff Moon <cliff@chariotsolutions.com> wrote:
> I'm trying to track down whether or not a problem I'm having is specific
> to the JRuby platform, or it's an inherent limitation of AR.  What I'm
> trying to do is something like:
>
> cash += tx.gain
>
> where tx is another AR object and gain is a calculated field which isn't
> persistent.  My unit tests keep telling me that I'm trying to call nil.+
> at this line, despite cash having been explicitly set.  Curiously, the
> problem occurs exactly the same when the code is:
>
> cash = cash + tx.gain
>
> The following work:
>
> blah = cash + tx.gain
> cash = blah
>
> and
>
> self[:cash] = cash + tx.gain
>
> So anyone have a clue what's going on here?  Is this just a quirk of AR
> that I've been lucky enough not to have run into until now, or mightn't
> this be something JRuby related?
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--
Evan Weaver
Cloudburst, LLC
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