Cliff Moon on 30 May 2007 02:58:53 -0000

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Re: [PhillyOnRails] AR accessor problem

Aha, += tx.gain works. I'll have to sanitize the java specifics out of the test and see if it does the same thing on MRI. Thanks.

Evan Weaver wrote:
Trying using: = + tx.gain

or even

cash = + tx.gain

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


On 5/29/07, Cliff Moon <> 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


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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