Rails - Nov 2006 - dynamically adding static (class) methods to a class

Hello again,

I guess this is more of a Ruby question, but here goes anyways...

I want to intercept all calls to non existent class methods and then
call an existing class method with the non existent name.

In code...

class MyModel < ActiveRecord::Base

  def MyModel.method_missing(symbol, *args)
    MyModel.func(symbol.id2name)
  end

  def MyModel.func(func_called)
    puts "You called #{func_called}"
  end

end

When I try this code, it gets lost in recursion.

Thanks for the help.


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Please post to the comp.lang.ruby.

Thank you,

-Conrad


On 11/16/06, Christopher J. Bottaro
<cjbottaro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Hello again,
>
> I guess this is more of a Ruby question, but here goes anyways...
>
> I want to intercept all calls to non existent class methods and then
> call an existing class method with the non existent name.
>
> In code...
>
> class MyModel < ActiveRecord::Base
>
>   def MyModel.method_missing(symbol, *args)
>     MyModel.func(symbol.id2name)
>   end
>
>   def MyModel.func(func_called)
>     puts "You called #{func_called}"
>   end
>
> end
>
> When I try this code, it gets lost in recursion.
>
> Thanks for the help.
>
>
> >
>
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Actually, it turned out to be a Rails problem...

The code I originally wrote below actually works.

The problem was in my real code where I was calling
MyModel.find_by_name from within method_missing... which was causing
infinite recursion because Rails uses method_missing to implement all
the find_by_* methods.

-- C

Conrad Taylor wrote:
> Please post to the comp.lang.ruby.
>
> Thank you,
>
> -Conrad
>
>
> On 11/16/06, Christopher J. Bottaro
<cjbottaro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > Hello again,
> >
> > I guess this is more of a Ruby question, but here goes anyways...
> >
> > I want to intercept all calls to non existent class methods and then
> > call an existing class method with the non existent name.
> >
> > In code...
> >
> > class MyModel < ActiveRecord::Base
> >
> >   def MyModel.method_missing(symbol, *args)
> >     MyModel.func(symbol.id2name)
> >   end
> >
> >   def MyModel.func(func_called)
> >     puts "You called #{func_called}"
> >   end
> >
> > end
> >
> > When I try this code, it gets lost in recursion.
> >
> > Thanks for the help.

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