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# File 'app/patches/models/solidus_volume_pricing/spree_variant_patch.rb', line 5
def self.prepended(base)
base.class_eval do
has_and_belongs_to_many :volume_price_models
has_many :volume_prices, -> { order(position: :asc) }, dependent: :destroy
has_many :model_volume_prices, -> {
order(position: :asc)
}, class_name: "::Spree::VolumePrice", through: :volume_price_models, source: :volume_prices
accepts_nested_attributes_for :volume_prices, allow_destroy: true,
reject_if: proc { |volume_price|
volume_price[:amount].blank? && volume_price[:range].blank?
}
end
end
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