Devise - confirmable undefined method

Question

I've recently acquired the Ruby code for a website my company is now developing. I've installed Rails, and run bundle to get the gems. I then set up PostgreSQL and changed the details in the database.yml file. I run rake db:migrate and it returns undefined method confirmable' for #<ActiveRecord::ConnectionAdapters::Table:0xaeae3cc>
Devise is installed, but if I run rails g devise:install , it tells me to do some manual setup, which I have ensured is done.
The app is hosted on Heroku if that helps.

devise (2.1.2, 2.0.0) rails (3.2.8, 3.2.0)

Answer 1

您需要为用户使用创建设计资源

rails generate devise user

Answer 2

If you have set up confirmable module after initial generation of Devise's migration, you need to create the migration by hand :

class AddConfirmableToDevise < ActiveRecord::Migration
  def up
    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
    execute("UPDATE users SET confirmed_at = NOW()")
    # All existing user accounts should be able to log in after this.
    # Remind: Rails using SQLite as default. And SQLite has no such function :NOW.
    # Use :date('now') instead of :NOW when using SQLite.
    # => execute("UPDATE users SET confirmed_at = date('now')")
    # Or => User.all.update_all confirmed_at: Time.now
  end

  def down
    remove_columns :users, :confirmation_token, :confirmed_at, :confirmation_sent_at
    # remove_columns :users, :unconfirmed_email # Only if using reconfirmable
  end
end