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class StockPlugin::Allocation < ActiveRecord::Base

  belongs_to :place, :class_name => 'StockPlugin::Place'
  belongs_to :product, :class_name => 'ProductsPlugin::Product'

  validates_presence_of :place
  validates_presence_of :product
  validates_numericality_of :quantity, :allow_nil => true

  extend CurrencyFields::ClassMethods
  has_number_with_locale :quantity

  before_validation :check_place
  after_create :update_product_counter
  after_destroy :update_product_counter

  protected

  def update_product_counter
    self.product.update_stored
  end

  def check_place
    if self.place.nil?
      if self.product && self.product.profile.stock_places.count == 0
        self.place = StockPlugin::Place.create! profile_id: self.product.profile_id, name: 'default', description: 'default place'
      else
        self.place = self.product.profile.stock_places.first
      end
    end
  end
end