foodsoft/app/models/group_order.rb

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# == Schema Information
# Schema version: 20090114101610
#
# Table name: group_orders
#
# id :integer(4) not null, primary key
# ordergroup_id :integer(4) default(0), not null
# order_id :integer(4) default(0), not null
# price :decimal(8, 2) default(0.0), not null
# lock_version :integer(4) default(0), not null
# updated_on :datetime not null
# updated_by_user_id :integer(4) default(0), not null
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#
# A GroupOrder represents an Order placed by an Ordergroup.
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class GroupOrder < ActiveRecord::Base
belongs_to :order
belongs_to :ordergroup
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has_many :group_order_articles, :dependent => :destroy
has_many :order_articles, :through => :group_order_articles
has_many :group_order_article_results
belongs_to :updated_by, :class_name => "User", :foreign_key => "updated_by_user_id"
validates_presence_of :order_id
validates_presence_of :ordergroup_id
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validates_presence_of :updated_by
validates_numericality_of :price
validates_uniqueness_of :ordergroup_id, :scope => :order_id # order groups can only order once per order
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# Updates the "price" attribute.
# This will be the maximum value of a current order
def updatePrice
total = 0
for article in group_order_articles.find(:all, :include => :order_article)
total += article.order_article.article.gross_price * (article.quantity + article.tolerance)
end
self.price = total
end
end