This repo contains the bare minimum code to enable :confirmable with Devise, to use Letter Opener to preview emails during development, and to make the Devise mailer templates available at http://localhost:3000/rails/mailers/.
Firstly, set up a new rails app using the Devise template from Le Wagon:
rails new \
--database postgresql \
--webpack \
-m https://raw.githubusercontent.com/lewagon/rails-templates/master/devise.rb \
CHANGE_THIS_TO_YOUR_RAILS_APP_NAME
Add the letter_opener gem to your gemfile:
bundle add --development letter_opener
Then add the following to your config/environments/development.rb file:
# config/environments/development.rb
config.action_mailer.delivery_method = :letter_opener
config.action_mailer.perform_deliveries = trueMore information about how to set up Devise to send user confirmation emails can be found here.
Firstly, we need to add :confirmable to the User model:
# app/models/user.rb
class User < ApplicationRecord
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :validatable,
:confirmable
endThen create a migration to add the required bits to the User model in the database:
rails g migration add_confirmable_to_devise
Then add the following to the migration file:
# db/migrate/YYYYMMDDxxx_add_confirmable_to_devise.rb
class AddConfirmableToDevise < ActiveRecord::Migration
# Note: You can't use change, as User.update_all will fail in the down 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
# User.reset_column_information # Need for some types of updates, but not for update_all.
# To avoid a short time window between running the migration and updating all existing
# users as confirmed, do the following
User.update_all confirmed_at: DateTime.now
# All existing user accounts should be able to log in after this.
end
def down
remove_index :users, :confirmation_token
remove_columns :users, :confirmation_token, :confirmed_at, :confirmation_sent_at
# remove_columns :users, :unconfirmed_email # Only if using reconfirmable
end
endThen run the migration (and restart the server):
rails db:migrate
Finally (unless you enabled :reconfirmable in the migration above), add the following to config.initializers/devise.rb:
# config.initializers/devise.rb
config.reconfirmable = falseIn order to be able to preview the Devise mailers at http://localhost:3000/rails/mailers/, create the following file:
touch test/mailers/previews/devise_mailer_preview.rb
and put the following inside it:
# test/mailers/previews/devise_mailer_preview.rb
class DeviseMailerPreview < ActionMailer::Preview
USER = User.new(email: "[email protected]")
def confirmation_instructions
Devise::Mailer.confirmation_instructions(USER, {})
end
def unlock_instructions
Devise::Mailer.unlock_instructions(USER, "faketoken")
end
def reset_password_instructions
Devise::Mailer.reset_password_instructions(USER, "faketoken")
end
end
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent