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How To: Add :confirmable to Users
If you find yourself needing to introduce confirmable to your user model after the application has already been used for sometime, you will end up marking existing users as unconfirmed in the application.
For example, assume that you have a system full of users and you need to implement email notifications for user accounts. In doing this, existing user accounts will be left unconfirmed thus unable to login.
Here's how you can introduce confirmable to users while also marking existing users as confirmed.
First, make sure that you've created a migration to add the proper columns:
class AddConfirmableToUsers < ActiveRecord::Migration
def change
add_column :users, :confirmation_token, :string
add_column :users, :confirmed_at, :datetime
add_column :users, :confirmation_sent_at, :datetime
# add_column :users, :unconfirmed_email, :string # Only if using reconfirmable
add_index :users, :confirmation_token, :unique => true
end
end
Next, add :registerable
and :confirmable
to the User model:
devise :registerable, :confirmable
If not using reconfirmable, update the configuration in config/intializers/devise.rb
config.reconfirmable = false
To confirm all existing user accounts, load up a Rails console:
rails console production
Iterate through each user and set their confirmed_at
attribute equal to the current time, then save the user:
User.all.each do |u|
u.confirmed_at = Time.now.utc
u.save
end
All existing user accounts should be able to login after this.