foodsoft/app/models/order_article.rb

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2009-01-06 11:49:19 +01:00
# An OrderArticle represents a single Article that is part of an Order.
#
# Properties:
# * order_id (int): association to the Order
# * article_id (int): association to the Article
# * quantity (int): number of items ordered by all OrderGroups for this order
# * tolerance (int): number of items ordered as tolerance by all OrderGroups for this order
# * units_to_order (int): number of packaging units to be ordered according to the order quantity/tolerance
#
class OrderArticle < ActiveRecord::Base
2009-01-06 11:49:19 +01:00
belongs_to :order
belongs_to :article
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
private
def validate
errors.add(:article, "muss angegeben sein und einen aktuellen Preis haben") if !(article = Article.find(article_id)) || article.gross_price.nil?
end
end