Rails 4 - uniqueness validation doesn't work?

Question

I am using this block of code for validating email address. The format of entered email address validates well, but the problem is with the "uniqueness" part - I currently can enter more identic email addresses to the database - how is that possible?

Has something changed in Rails 4 about validations?

class BetaAccess < ActiveRecord::Base
  validates_format_of :email,:with => Devise::email_regexp, uniqueness: true
end

Thank you.

I had a same problem, I edited uniqueness part as in separate line. Try it also `validates_uniqueness_of :email` — Antony Mithun, Jun 09 '14 at 07:06
http://stackoverflow.com/questions/6422211/rails-3-validating-email-uniqueness-and-case-sensitive-fails — Brad Werth, Jun 09 '14 at 07:07

score 4 · Answer 1 · answered Jun 09 '14 at 06:51

4

Try this:

class BetaAccess < ActiveRecord::Base
  validates :email,format: {with: Devise::email_regexp}, uniqueness: true
end

answered Jun 09 '14 at 06:51

manu29.d

1,538
1
11
15

It should be noted this takes advantage of the [`validates`](http://guides.rubyonrails.org/active_record_validations.html#validations-overview) method introduced in Rails 4 (I think?). Don't use `validates_x_y` any more ;) – Richard Peck Jun 09 '14 at 08:25
valides was introduced in Rails 3 – cristian Jun 09 '14 at 09:25

score 1 · Answer 2 · answered Jun 09 '14 at 06:52

1

format and uniqueness are different validators, if you want to use in one line, you should use validates method.

validates :email, :format => { :with => Devise::email_regexp }, :uniqueness => true

answered Jun 09 '14 at 06:52

xdazz

158,678
38
247
274

score 0 · Answer 3 · answered Oct 11 '16 at 16:44

validates_format_of :email,:with => Devise::email_regexp, uniqueness: true

combines uniqueness into the validation for format. Use the validates syntax

validates :email,format: {with: Devise::email_regexp},
                 uniqueness: true

Also, use the new ruby syntax for hashes. Kind of neat that way

Rails 4 - uniqueness validation doesn't work?

3 Answers3