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Contents
module MageRecord
# invoice items can be parents / children of other invoice items
# (only within the same order)
class InvoiceItem < ActiveRecord::Base
self.table_name = :sales_flat_invoice_item
self.primary_key = :entity_id
belongs_to :order_item, class_name: :OrderItem
belongs_to :parent, class_name: :InvoiceItem, foreign_key: :parent_item_id
belongs_to :product
# note: add an index on the column "parent_item_id" to
# *dramatically* speed up loading of child order items from the parent order item
has_many :children, class_name: :InvoiceItem, foreign_key: :parent_item_id
# call associated product's method
def method_missing(meth, *args, &block)
if product && product.respond_to?(meth)
product.send(meth)
else
# call superclass's method_missing method
# or risk breaking Ruby's method lookup
super
end
end
def respond_to?(meth, include_private = false)
super || (product && product.respond_to?(meth))
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems