Sha256: 89487cb1db065db18c2ad2b9614032f8fc15873602ad4f32ec3ac1115fa46a7c
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Versions: 27
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Stored size: 1.33 KB
Contents
class ShopLineItem < ActiveRecord::Base
belongs_to :order, :class_name => 'ShopOrder'
has_one :customer, :class_name => 'User', :through => :order, :source => :customer
belongs_to :item, :polymorphic => true
before_validation :adjust_quantity, :copy_price
validates_presence_of :item, :item_price
validates_uniqueness_of :item_id, :scope => [ :order_id, :item_type ]
validates_numericality_of :item_price, :greater_than => 0.00, :allow_nil => true, :precisions => 2
def price
(item_price.to_f * self.quantity).to_f
end
def weight
warn 'Not yet fully implemented'
(item.weight.to_f * self.quantity.to_f).to_f
end
# Overloads the base to_json to return what we want
def to_json(*attrs); super self.class.params; end
class << self
# Returns attributes attached to the product
def attrs
[ :id, :quantity ]
end
# Returns methods with usefuly information
def methds
[ :price, :weight ]
end
# Returns a custom hash of attributes on the product
def params
{ :only => attrs, :methods => methds }
end
end
protected
def adjust_quantity
self.quantity = [1,self.quantity].max
end
def copy_price
self.item_price = item.price unless item_price.present?
end
end
Version data entries
27 entries across 27 versions & 1 rubygems