gistfile1.builder

class Prescription < ActiveRecord::Base
  belongs_to :doctor, :class_name => 'User', :foreign_key => 'doctor_id'
  belongs_to :patient, :class_name => 'User', :foreign_key => 'patient_id'
  belongs_to :pharmacist, :class_name => 'User', :foreign_key => 'pharmacist_id'
  belongs_to :prescribable, :polymorphic => true
  has_many :prescription_transactions

  validates_presence_of :patient
  validates_presence_of :uuid
  # ...
end

class Prescription < ActiveRecord::Base
  generator_for(:doctor_id)         { User.generate(:role => 'doctor').id }
  generator_for(:expired_at)        { Date.today + 5.days }
  generator_for(:filled_on)         { Date.today }
  generator_for(:max_refill)        { (5..10).to_a.rand }
  generator_for(:patient_id)        { User.generate(:role => 'patient').id }
  generator_for(:pharmacist_id)     { User.generate(:role => 'pharmacist').id }
  generator_for(:quantity)          { (1..10).to_a.random_element }
  generator_for(:refill_number)     { (1..5).to_a.random_element }
  generator_for :state,             :new
  generator_for :uuid,              :start => Faker::Lorem.words(1).join('')
end