foodsoft/app/models/group_order.rb

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# == Schema Information
# Schema version: 20090119155930
#
# Table name: group_orders
#
# id :integer not null, primary key
# ordergroup_id :integer default(0), not null
# order_id :integer default(0), not null
# price :decimal(8, 2) default(0.0), not null
# lock_version :integer default(0), not null
# updated_on :datetime not null
# updated_by_user_id :integer
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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
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_numericality_of :price
validates_uniqueness_of :ordergroup_id, :scope => :order_id # order groups can only order once per order
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named_scope :open, lambda { {:conditions => ["order_id IN (?)", Order.open.collect(&:id)]} }
named_scope :finished, lambda { {:conditions => ["order_id IN (?)", Order.finished_not_closed.collect(&:id)]} }
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# Updates the "price" attribute.
# This will be the maximum value of an open order or
# the value depending of the article results.
def update_price!
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total = 0
for article in group_order_articles.find(:all, :include => :order_article)
unless order.finished?
total += article.order_article.article.fc_price * (article.quantity + article.tolerance)
else
total += article.order_article.price.fc_price * article.result
end
end
update_attribute(:price, total)
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end
end