method

foreign_key_for?

rails latest stable - Class: ActiveRecord::Associations::Association

foreign_key_for?(record)

private

Returns true if record contains the foreign_key

# File activerecord/lib/active_record/associations/association.rb, line 339
        def foreign_key_for?(record)
          foreign_key = Array(reflection.foreign_key)
          foreign_key.all? { |key| record._has_attribute?(key) }
        end

foreign_key_for?

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