class Api::Admin::StandingOrderSerializer < ActiveModel::Serializer attributes :id, :shop_id, :customer_id, :schedule_id, :payment_method_id, :shipping_method_id, :begins_at, :ends_at has_many :standing_line_items, serializer: Api::Admin::StandingLineItemSerializer has_one :bill_address, serializer: Api::AddressSerializer has_one :ship_address, serializer: Api::AddressSerializer def begins_at object.begins_at.andand.strftime('%F') end def ends_at object.ends_at.andand.strftime('%F') end end