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fab-manager/app/services/cart/add_item_service.rb

28 lines
828 B
Ruby

# frozen_string_literal: true
# Provides methods for add order item to cart
class Cart::AddItemService
def call(order, orderable, quantity = 1)
return order if quantity.to_i.zero?
raise Cart::InactiveProductError unless orderable.is_active
item = order.order_items.find_by(orderable: orderable)
quantity = orderable.quantity_min > quantity.to_i && item.nil? ? orderable.quantity_min : quantity.to_i
if item.nil?
item = order.order_items.new(quantity: quantity, orderable: orderable, amount: orderable.amount)
else
item.quantity += quantity.to_i
end
raise Cart::OutStockError if item.quantity > orderable.stock['external']
order.total += (item.amount * quantity.to_i)
ActiveRecord::Base.transaction do
item.save
order.save
end
order.reload
end
end