Rails - Dec 2007 - Model inheritance problem

Hi,

I''ve bumped into the following problem. I have two models, one
inheriting from another:

---------------------------------------------------------------
class Message < ActiveRecord::Base
  ...

def reply_link
    [returns string]
  end

end

---------------------------------------------------------------
class SpecificMessage < Message
...
end
---------------------------------------------------------------

I use single table inheritance

When I render a view that includes

....
="#{@message.reply_link}"
....

for a SpecificMessage object, it works fine once.
After that, when I try to render it for any object I get the error:

undefined method `reply_link'' for #<SpecificMessage:0xb6813948>


Is it a bug, or is there a mechanism I am not aware of?

Any help appreciated :)

Best regards,
Adam Oldak

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On 13 Dec 2007, at 13:12, Adam Oldak wrote:
>
> I use single table inheritance
>
> When I render a view that includes
>
> ....
> ="#{@message.reply_link}"
> ....
>
> for a SpecificMessage object, it works fine once.
> After that, when I try to render it for any object I get the error:
>
> undefined method `reply_link'' for
#<SpecificMessage:0xb6813948>
>
>
That sounds like a weird Dependencies autoloading problem. There have  
been a few people with those recently. In my experience they often  
boil down to doing require ''xxx'' when you should be doing  
require_dependency ''xxx'' or not requiring it at all.

Fred
> Is it a bug, or is there a mechanism I am not aware of?
>
> Any help appreciated :)
>
> Best regards,
> Adam Oldak
>
> >

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