Find all records associated with an ActiveRecord::Base model

Comments

If you are too lazy to look up the source file, just hit this up in the rails console.

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InterestingModel.reflect_on_all_associations.map{ |assoc| [assoc.macro, assoc.name] }
  # =>[[:belongs_to, :foo_model],
  #    [:has_one, :bar_model],
  #    [:has_one, :other_model]
  #=> ActiveRecord::Reflection::AssociationReflection

Addtion:
You can also see all associations for an instance of a model.

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InterestingModel.new.reflections
  #=> ActiveRecord::Reflection::AssociationReflection

This also works with Classes themself

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InterestingModel.reflections
  #=> ActiveRecord::Reflection::AssociationReflection

Note that reflect_on_all_associations returns an Array of all Associations and
reflections will return a Hash like { :association_name => ActiveRecord::Relfection::AssociationReflection }