68 lines
2 KiB
Ruby
68 lines
2 KiB
Ruby
class StockArticle < Article
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acts_as_paranoid
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has_many :stock_changes
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scope :available, :conditions => "quantity > 0"
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before_destroy :check_quantity
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# Update the quantity of items in stock
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def update_quantity!
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update_attribute :quantity, stock_changes.collect(&:quantity).sum
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end
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# Check for unclosed orders and substract its ordered quantity
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def quantity_available(exclude_order = nil)
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available = quantity
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for order in Order.stockit.all(:conditions => "state = 'open' OR state = 'finished'")
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unless order == exclude_order
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order_article = order.order_articles.first(:conditions => {:article_id => id})
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available -= order_article.units_to_order if order_article
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end
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end
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available
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end
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def self.stock_value
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available.collect { |a| a.quantity * a.gross_price }.sum
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end
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protected
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def check_quantity
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raise "#{name} kann nicht gelöscht werden. Der Lagerbestand ist nicht null." unless quantity == 0
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end
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# Overwrite Price history of Article. For StockArticles isn't it necessary.
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def update_price_history
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true
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end
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end
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# == Schema Information
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#
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# Table name: articles
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#
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# id :integer(4) not null, primary key
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# name :string(255) default(""), not null
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# supplier_id :integer(4) default(0), not null
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# article_category_id :integer(4) default(0), not null
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# unit :string(255) default(""), not null
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# note :string(255)
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# availability :boolean(1) default(TRUE), not null
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# manufacturer :string(255)
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# origin :string(255)
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# shared_updated_on :datetime
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# price :decimal(8, 2)
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# tax :float
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# deposit :decimal(8, 2) default(0.0)
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# unit_quantity :integer(4) default(1), not null
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# order_number :string(255)
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# created_at :datetime
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# updated_at :datetime
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# deleted_at :datetime
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# type :string(255)
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# quantity :integer(4) default(0)
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#
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