Validations

Validations go in your model files.

example:

class User < ActiveRecord::Base
  has_many :songs

  validates :name,  presence: true, length: { in: 2..30 }
  validates :email, uniqueness: true, confirmation: true
  validates :email_confirmation, presence: true
end

Independent Practice

• Make your own app with at least one join table.
• Use at least 3 different validations.
• Seed your database using the seed file and rake db:seed command.
• Test everything in rails console.