Rails - Sep 2008 - assigning a method argument to a model attribute

Hi,

when i do this:

<%=  method(x)  %>

in the view

and the method: is

def method(x)

model.x

end


rails give the error of no argument. how do i assign an argument to
the model?
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On Mon, Sep 1, 2008 at 12:55 PM, tyliong
<tyliong-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> when i do this:
>
> <%=  method(x)  %>
>
> in the view
>
> and the method: is
>
> def method(x)
>
> model.x
>
> end
You can do it like this

   model.send(x)

Nevertheless, you normally write

   <%=h @model.x %>

in the view, or prepare some @x in the controller that holds model.x,
depending on how important is @model to the view. Do you really need
that level of indirection?

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On 1 Sep 2008, at 11:55, tyliong wrote:
>
> Hi,
>
> when i do this:
>
> <%=  method(x)  %>
>
> in the view
>
> and the method: is
>
> def method(x)
>
> model.x
>
> end
>
First off there''s an internal ruby method called "method" so
it''s best
to avoid that. Aside from that your method should be in the  
appropriate view helper file.

Having done all that it''s still not going to work:
- in side your method, model isn''t defined
- assuming x contains a string and you want to call that method you  
can''t do it like that (what you''ve got will try and call the
method
called x). you need to use the send method (for example  
[1,2,3].send(''length'') returns 3

Fred

>
> rails give the error of no argument. how do i assign an argument to
> the model?
> >

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Thanks guys it works now.

On Sep 1, 7:07 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On 1 Sep 2008, at 11:55, tyliong wrote:
>
>
>
>
>
> > Hi,
>
> > when i do this:
>
> > <%=  method(x)  %>
>
> > in the view
>
> > and the method: is
>
> > def method(x)
>
> > model.x
>
> > end
>
> First off there''s an internal ruby method called
"method" so it''s best  
> to avoid that. Aside from that your method should be in the  
> appropriate view helper file.
>
> Having done all that it''s still not going to work:
> - in side your method, model isn''t defined
> - assuming x contains a string and you want to call that method you  
> can''t do it like that (what you''ve got will try and call
the method  
> called x). you need to use the send method (for example  
> [1,2,3].send(''length'') returns 3
>
> Fred
>
>
>
> > rails give the error of no argument. how do i assign an argument to
> > the model?
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