CODEWITHSUNDEEP
rubyruby-on-rails-3validationruby-on-rails-3.1
brittohalloran
brittohalloran

Reputation: 3634

validates specific attribute of associated model

What's the simplest railsy way to validate an attribute of an associated model?

Item
  belongs_to :user
  validates_presence_of :user
  # AND the "is_photographer" column for that user must be true

User
  has_many :items
  # can be a regular user or a photographer

Upvotes: 1

Views: 50

Answers (1)

Dogbert
Dogbert

Reputation: 222398

validate :user_is_photographer, :if => :user

def user_is_photographer
  errors.add(:user, "should be a photographer") unless user.is_photographer
end

Upvotes: 5

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