Noosfero/noosfero

class SuppliersPlugin::SourceProduct < ApplicationRecord
  attr_accessible :from_product, :to_product, :quantity

  default_scope -> { includes :from_product, :to_product }

  belongs_to :from_product, class_name: "ProductsPlugin::Product", optional: true
  belongs_to :to_product, class_name: "ProductsPlugin::Product", optional: true
  belongs_to :supplier, class_name: "SuppliersPlugin::Supplier", optional: true

  has_many :sources_from_products, through: :from_product
  has_many :sources_to_products, through: :to_product

  has_one :supplier_profile, through: :supplier, source: :profile

  before_validation :find_supplier

  validates_presence_of :from_product
  validates_presence_of :to_product
  validates_presence_of :supplier
  validates_numericality_of :quantity, allow_nil: true

  protected

    def find_supplier
      self.supplier = SuppliersPlugin::Supplier.where(profile_id: self.from_product.profile_id, consumer_id: self.to_product.profile_id).first
      raise "Can't find supplier" unless self.supplier

      self.supplier
    end
end