Rails - Mar 2008 - Can an object obj-arbitrary respond to a method with arbitary name?

For example:
I create an object c.
Now, if I call c.xxx, ruby just raise an exception ''method
missing''
But, I want it return nil, for each method which is not pre-defined.
Is there a way I can gain this ?
Thanks!
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If you are doing something like this s = c.xxx then u can always give
recue nil which would then set the value of s as nil.

On Mar 18, 10:47 am, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:
>   For example:
> I create an object c.
> Now, if I call c.xxx, ruby just raise an exception ''method
missing''
> But, I want it return nil, for each method which is not pre-defined.
> Is there a way I can gain this ?
> Thanks!
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Thank you!~
I imaged there may be some trigger, open it, then object of some class
will response to every method. close it, then exception raises.
I wanna the classes predefined by ruby/rails can have this
functionality.
Can anyone tell me how to diy it ?
For example, I want a model class has this kind of  trigger.

On Mar 18, 2:04 pm, dhaval
<dhaval.deshpan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> If you are doing something like this s = c.xxx then u can always give
> recue nil which would then set the value of s as nil.
>
> On Mar 18, 10:47 am, hei <cy...-KN7UnAbNpbg@public.gmane.org> wrote:
>
>
>
> >   For example:
> > I create an object c.
> > Now, if I call c.xxx, ruby just raise an exception ''method
missing''
> > But, I want it return nil, for each method which is not pre-defined.
> > Is there a way I can gain this ?
> > Thanks!- Hide quoted text -
>
> - Show quoted text -
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Then I think yo need to write your custom method_missing in you model
class. This is how rails actually creates its dynamic finders by
invoking method_missing in base.rb. Or you can actually modify the
method_missing in base.rb as per your need.

On Mar 18, 11:32 am, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:
> Thank you!~
> I imaged there may be some trigger, open it, then object of some class
> will response to every method. close it, then exception raises.
> I wanna the classes predefined by ruby/rails can have this
> functionality.
> Can anyone tell me how to diy it ?
> For example, I want a model class has this kind of  trigger.
>
> On Mar 18, 2:04 pm, dhaval
<dhaval.deshpan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > If you are doing something like this s = c.xxx then u can always give
> > recue nil which would then set the value of s as nil.
>
> > On Mar 18, 10:47 am, hei <cy...-KN7UnAbNpbg@public.gmane.org>
wrote:
>
> > >   For example:
> > > I create an object c.
> > > Now, if I call c.xxx, ruby just raise an exception
''method missing''
> > > But, I want it return nil, for each method which is not
pre-defined.
> > > Is there a way I can gain this ?
> > > Thanks!- Hide quoted text -
>
> > - Show quoted text -
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Thank very much!
That''s just I want.
I lack of knowledge about how rails works, I think.
Thanks a lot!!

On Mar 18, 3:48 pm, dhaval
<dhaval.deshpan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Then I think yo need to write your custom method_missing in you model
> class. This is how rails actually creates its dynamic finders by
> invoking method_missing in base.rb. Or you can actually modify the
> method_missing in base.rb as per your need.
>
> On Mar 18, 11:32 am, hei <cy...-KN7UnAbNpbg@public.gmane.org> wrote:
>
>
>
> > Thank you!~
> > I imaged there may be some trigger, open it, then object of some class
> > will response to every method. close it, then exception raises.
> > I wanna the classes predefined by ruby/rails can have this
> > functionality.
> > Can anyone tell me how to diy it ?
> > For example, I want a model class has this kind of  trigger.
>
> > On Mar 18, 2:04 pm, dhaval
<dhaval.deshpan...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > If you are doing something like this s = c.xxx then u can always
give
> > > recue nil which would then set the value of s as nil.
>
> > > On Mar 18, 10:47 am, hei
<cy...-KN7UnAbNpbg@public.gmane.org> wrote:
>
> > > >   For example:
> > > > I create an object c.
> > > > Now, if I call c.xxx, ruby just raise an exception
''method missing''
> > > > But, I want it return nil, for each method which is not
pre-defined.
> > > > Is there a way I can gain this ?
> > > > Thanks!- Hide quoted text -
>
> > > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -
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