Conflict on the EmailValidator with another gem (devise_token_auth)

[xdmx]

Steps to reproduce with rails 5:

rails new testemail -B -d postgresql

Add to Gemfile:

gem 'devise_token_auth', github: 'lynndylanhurley/devise_token_auth'
gem 'valid_email2', '~> 1.2.3'

create app/model/invitation.rb

class Invitation
  include ActiveModel::Model

  attr_accessor :email

  validates :email, email: { mx: true, disposable: true }
end

bundle install
git init
heroku create
git add .
git commit -m "init"
git push heroku master

# rails c
x = Invitation.new email: '[email protected]'
x.valid? => false

# heroku run console
x = Invitation.new email: '[email protected]'
x.valid? => true

The problem seems to be that devise_token_auth also has an EmailValidator which overwrites valid_email2's validator.

Is there a way to force to use valid_email2 and not devise_token_auth?

I've tried to change the gemfile with

gem 'valid_email2', '~> 1.2.3'

and adding require 'valid_email2 after Bundler.require(*Rails.groups) in config/application.rb but still loads the wrong one

[micke]

Sorry, i completely forgot to attend to this issue.

I'm open to move EmailValidator under the ValidEmail2 namespace, this would need to be released as version 2.0.0 as to not break semver. I'm swamped with other stuff right now so a PR is definitely welcomed.

[fredngo]

Hello @lisinge! I submit this PR for your consideration: #79

[fredngo]

Looks like this issue can now be closed :)

[micke]

I just pushed v2.0.0 to rubygems which includes @fredngo's pr which namespaces the validator.
See https://github.com/lisinge/valid_email2#upgrading-to-v200 for upgrade instructions

[andystu]

under rails 5 and use devise, I put
=> validates :email, presence: true, 'valid_email_2/email': true
into my user model,
but get error
=> Unknown validator: 'ValidEmail2::EmailValidator'

[micke]

@andystu Are you sure you are running version 2.0.0?