foodsoft/app/models/order_article.rb

62 lines
2.2 KiB
Ruby

# == Schema Information
# Schema version: 20090120184410
#
# Table name: order_articles
#
# id :integer(4) not null, primary key
# order_id :integer(4) default(0), not null
# article_id :integer(4) default(0), not null
# quantity :integer(4) default(0), not null
# tolerance :integer(4) default(0), not null
# units_to_order :integer(4) default(0), not null
# lock_version :integer(4) default(0), not null
# article_price_id :integer(4)
#
# An OrderArticle represents a single Article that is part of an Order.
class OrderArticle < ActiveRecord::Base
belongs_to :order
belongs_to :article
belongs_to :article_price
has_many :group_order_articles, :dependent => :destroy
validates_presence_of :order_id
validates_presence_of :article_id
validates_uniqueness_of :article_id, :scope => :order_id # an article can only have one record per order
validate :article_and_price_exist
named_scope :ordered, :conditions => "units_to_order >= 1"
# TODO: How to create/update articles/article_prices during balancing
# # Accessors for easy create of new order_articles in balancing process
# attr_accessor :name, :order_number, :units_to_order, :unit_quantity, :unit, :net_price, :tax, :deposit
#
# before_validation_on_create :create_new_article
# This method returns either the Article or the ArticlePrice
# The latter will be set, when the the order is finished
def price
article_price || article
end
# Count quantities of belonging group_orders.
# In balancing this can differ from ordered (by supplier) quantity for this article.
def group_orders_sum
quantity = group_order_articles.collect(&:quantity).sum
{:quantity => quantity, :price => quantity * price.fc_price}
end
private
def article_and_price_exist
errors.add(:article, "muss angegeben sein und einen aktuellen Preis haben") if !(article = Article.find(article_id)) || article.fc_price.nil?
end
# def create_new_article
# old_article = order.articles.find_by_name(name) # Check if there is already an Article with this name
# unless old_article
# self.article.build
# end
# end
end