foodsoft/app/models/article_price.rb

class ArticlePrice < ActiveRecord::Base

  belongs_to :article
  has_many :order_articles

  validates_presence_of :price, :tax, :deposit, :unit_quantity
  
  # Custom attribute setter that accepts decimal numbers using localized decimal separator.
  def price=(price)
    self[:price] = String.delocalized_decimal(price)
  end

  # Custom attribute setter that accepts decimal numbers using localized decimal separator.
  def tax=(tax)
    self[:tax] = String.delocalized_decimal(tax)
  end

  # Custom attribute setter that accepts decimal numbers using localized decimal separator.
  def deposit=(deposit)
    self[:deposit] = String.delocalized_decimal(deposit)
  end

  # The financial gross, net plus tax and deposit.
  def gross_price
    ((price + deposit) * (tax / 100 + 1)).round(2)
  end

  # The price for the foodcoop-member.
  def fc_price
    (gross_price  * (FoodsoftConfig[:price_markup] / 100 + 1)).round(2)
  end
end