Guyren,
You can use @instance variables in classes but they don't work with
inheritance.
http://railstips.org/blog/archives/2006/11/18/class-and-instance-variables-in-ruby/is
a pretty good explanation.
What you're doing actually requires a class @@variable (or a constant). You
want one hash that exists in every controller that's always the same.
Here's some code I just made up that may or may not work :) I think Hash
with default is pretty ideal for what you're doing.
MODELS = Hash.new { |name|
table_name_from_controller_name(name).singularize.camelize.constantize
}
MODELS['ThingsController']
I feel ok using a constant here because really this is constant data that's
just not all cached yet. You could also do it with @@vars in just about the
same way:
@@models_by_name = Hash.new { |name| ... etc ... }
def self.models_by_name(name)
@@models_by_name[name]
end
Hope that helps,
Martin
On Wed, Feb 17, 2010 at 3:01 PM, Guyren G Howe <[email protected]> wrote:
> On Feb 17, 2010, at 13:17 , Rob Kaufman wrote:
>
> > Since your using a class method you need to use a class variable to
> > store the value:
> >
> > @model_name_cache needs to be @@model_name_cache
>
>
> No, that wasn't it. I could see the second time around that I had the class
> in there; it's just that the class wasn't working properly.
>
> I suspect that the class reloading behavior in design mode was getting
> interrupted by my holding onto a reference to the class.
>
> Regards,
>
> Guyren G Howe
> Relevant Logic LLC
>
> guyren-at-relevantlogic.com ~ http://relevantlogic.com ~ +1 512 784 3178
>
> Ruby/Rails, REALbasic, PHP programming
> PostgreSQL, MySQL database design and consulting
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>
> Read my book, Real OOP with REALbasic: <
> http://relevantlogic.com/oop-book/about-the-oop-book.php>
>
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