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dmitry/union_scope_concern.rb

Created January 12, 2021 18:20
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Union scope ActiveRecord concern (allow to use multiple scopes with or)
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union_scope_concern.rb
module UnionScopeConcern
extend ActiveSupport::Concern
class_methods do
def union_scope(*scopes)
scopes[1..-1].inject(where(id: scopes.first)) { |all, scope| all.or(where(id: scope)) }
end
end
end
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