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nyaahara/Model

Created December 10, 2014 12:25
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ActiveRecord：scopeをmergeする(引数も取れるよ！）
Raw
Model
class Parent << ActiveRecord::Base
has_many :childs
end
class Child << ActiveRecord::Base
belong_to :parent
scope :hoge_is_true, ->(args){ where(hoge: :true).where(hage: :args) }
end
Parent.includes(:childs).references(:childs).merge(Child.hoge_is_true(1))
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