Rails - Dec 2008 - when to set a class attribute variable during boot

I have an ActiveRecord model with a cattr_accessor. The class
attribute is set up like this:

class MyModel < ActiveRecord::Base
  cattr_accessor :my_attribute
end

Because I need to give #my_attribute environment-specific values, I
try to set this attribute in environments/development.rb like so:

MyModel.my_attribute = 3

But this leads to odd and erratic behavior when #my_attribute is
called from a controller. Sometimes MyModel.my_attribute returns 3,
but sometimes it returns nil.

Any suggestions?
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Daniel Choi wrote:
> I have an ActiveRecord model with a cattr_accessor. The class
> attribute is set up like this:
> 
> class MyModel < ActiveRecord::Base
>   cattr_accessor :my_attribute
> end
> 
> Because I need to give #my_attribute environment-specific values, I
> try to set this attribute in environments/development.rb like so:
> 
> MyModel.my_attribute = 3
> 
> But this leads to odd and erratic behavior when #my_attribute is
> called from a controller. Sometimes MyModel.my_attribute returns 3,
> but sometimes it returns nil.
In development mode, models get reloaded on every request,
so your variable won''t persist. You''ll have to set it in
in a persistent class or module, in the global context,
or in the database or session.

-- 
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