Rails - Jul 2011 - Monkey patching a gem (rails_admin, with Rails 3)

Hi.

I''m trying to monkey patch the rails_admin gem.

First, I tried to add a file in config/initializers containing:
RailsAdmin::MainController.class_eval do
def get_sort_hash
CODE HERE...
end
end

It was only loaded once, and then the method from the gem was always 
executed instead of mine.

I also tried to add the code in lib/ with the correct line in 
config/application.rb to load all files in lib/. But in this case it does 
not work at all.

Each time I defined my method using the following blocks:
RailsAdmin::MainController.class_eval do end
::RailsAdmin::MainController.class_eval do end

Any idea? Thanks.

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On Jul 6, 4:40 pm, Michel Pigassou
<dag...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi.
>
> I''m trying to monkey patch the rails_admin gem.
>
Not entirely answering the question, but why not just fork it on
github? Bundler makes it super easy to install gems from your own git
repo

Fred
> First, I tried to add a file in config/initializers containing:
> RailsAdmin::MainController.class_eval do
> def get_sort_hash
> CODE HERE...
> end
> end
>
> It was only loaded once, and then the method from the gem was always
> executed instead of mine.
>
> I also tried to add the code in lib/ with the correct line in
> config/application.rb to load all files in lib/. But in this case it does
> not work at all.
>
> Each time I defined my method using the following blocks:
> RailsAdmin::MainController.class_eval do end
> ::RailsAdmin::MainController.class_eval do end
>
> Any idea? Thanks.
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You''re probably right, but I would not lose rails_admin features.

But as nobody answered my problem on the plugin''s mailing list I think
I''m
gonna try other backend tools.

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On Wed, Jul 6, 2011 at 8:40 AM, Michel Pigassou
<dagnan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hi.
>
> I''m trying to monkey patch the rails_admin gem.
>
> First, I tried to add a file in config/initializers containing:
> RailsAdmin::MainController.class_eval do
> def get_sort_hash
> CODE HERE...
> end
> end
>
> It was only loaded once, and then the method from the gem was always
> executed instead of mine.
>
> I also tried to add the code in lib/ with the correct line in
> config/application.rb to load all files in lib/. But in this case it does
> not work at all.
>
> Each time I defined my method using the following blocks:
> RailsAdmin::MainController.class_eval do end
> ::RailsAdmin::MainController.class_eval do end
>
> Any idea? Thanks.
>
What are you trying to do exactly?

-Conrad
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I want to be able to sort a view of a model that has nested belongs to:
Checkin belongs to a Program that belongs to a User
So I want to sort the checkins according to the linked users.

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OMG I feel ashame, I discovered that what I want to do at the relationship 
level can be done with a has_one :through... Never thought of using this!

BTW I modified the admin_data plugin to tweak the sorting order and add 
scopes, could be useful for other nested associations.

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