Use a scope by default on a Rails has_many relationship

Question

Let\'s say I have the following classes

class SolarSystem < ActiveRecord::Base
  has_many :planets
end

class Planet < ActiveRecord::Base
  scope :life_supp         


        

Answer 1

i just had a deep dive into ActiveRecord and it does not look like if this can be achieved with the current implementation of has_many. you can pass a block to :conditions but this is limited to returning a hash of conditions, not any kind of arel stuff.

a really simple and transparent way to achieve what you want (what i think you are trying to do) is to apply the scope at runtime:

  # foo.rb
  def bars
    super.baz
  end

this is far from what you are asking for, but it might just work ;)