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