gistfile1.rb

  def size_39_quantity
    if self.variants.find_by_size(39)
      self.variants.count_on_hand
    else
      0
    end
  end
  
  def size_40_quantity
    if self.variants.find_by_size(40)
      self.variants.count_on_hand
    else
      0
    end
  end
  
  def size_41_quantity
    if self.variants.find_by_size(41)
      self.variants.count_on_hand
    else
      0
    end
  end
  
  def size_42_quantity
    if self.variants.find_by_size(42)
      self.variants.count_on_hand
    else
      0
    end
  end
  
  def size_43_quantity
    if self.variants.find_by_size(43)
      self.variants.count_on_hand
    else
      0
    end
  end
  
  def size_44_quantity
    if self.variants.find_by_size(44)
      self.variants.count_on_hand
    else
      0
    end
  end
  
  def size_45_quantity
    if self.variants.find_by_size(45)
      self.variants.count_on_hand
    else
      0
    end
  end
  
  def size_46_quantity
    if self.variants.find_by_size(46)
      self.variants.count_on_hand
    else
      0
    end
  end
  
  def size_47_quantity
    if self.variants.find_by_size(47)
      self.variants.count_on_hand
    else
      0
    end
  end