Activerecord has_many custom method

[Gm]

Hi,

I'm trying to create this method:

      has_many :cars do

        Car.where(color: 'red').all

      end

I'm using a class without Activerecord and outside rails:

module API

    class User < Base

      include ActiveRecord::Associations

       has_many :cars do

        Car.where(color: 'red').all

      end

    end

end

When I run:

undefined method `dangerous_attribute_method?' 

How can I use a has_many and create my own implementation ?

Thanks.

[BuyzLots]

Have a look at rails scope.  I’m pretty sure this is the functionality you are looking for.  

http://guides.rubyonrails.org/active_record_querying.html#scopes

Basically, you define your association, then define a scope to retrieve the records how you’d like to. 

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