fitting.rb

class Fitting < ActiveRecord::Base
  validates_presence_of :user, :timestamp, :specialist
  validates_presence_of :left_ear, :if => Proc.new { right_ear.blank? }
  validates_presence_of :right_ear, :if => Proc.new { left_ear.blank? }

  belongs_to :user
  belongs_to :left_ear, :class_name => 'Product', :foreign_key => 'left_ear_id'
  belongs_to :right_ear, :class_name => 'Product', :foreign_key => 'right_ear_id'
  belongs_to :specialist
  has_many :programs, :order => 'slot ASC'

  def has_customized_programs?
    customized_programs = programs.select {|program| program.is_customized?}
    customized_programs.length > 0 ? true : false
  end

  def products
    [right_ear, left_ear]
  end

  def unique_products
    products.uniq
  end

  def initial?
    user.fittings.count == 1
  end
end