1gem 'devise',      '~> 4.7', '>= 4.7.3'
2gem 'simple_form', '~> 5.1'

1Rails.application.configure do
2  # ...
3
4  config.action_mailer.raise_delivery_errors = false
5  config.action_mailer.perform_caching = false
6  config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
7  config.action_mailer.delivery_method = :smtp
8  config.action_mailer.smtp_settings = { address: '127.0.0.1', port: 1025 }
9
10  # ...
11end

1Devise.setup do |config|
2  # ...
3
4  # ==> Mailer Configuration
5  # Configure the e-mail address which will be shown in Devise::Mailer,
6  # note that it will be overwritten if you use your own mailer class
7  # with default "from" parameter.
8  config.mailer_sender = 'no-reply@example.com'
9
10  # If true, requires any email changes to be confirmed (exactly the same way as
11  # initial account confirmation) to be applied. Requires additional unconfirmed_email
12  # db field (see migrations). Until confirmed, new email is stored in
13  # unconfirmed_email column, and copied to email column on successful confirmation.
14  config.reconfirmable = false
15
16  # ...
17end

1# frozen_string_literal: true
2
3class DeviseCreateUsers < ActiveRecord::Migration[5.2]
4  def change
5    create_table :users do |t|
6      # ...
7
8      ## Confirmable
9      t.string   :confirmation_token
10      t.datetime :confirmed_at
11      t.datetime :confirmation_sent_at
12      # t.string   :unconfirmed_email # Only if using reconfirmable
13
14      # ...
15    end
16
17    # ...
18  end
19end

1class AddNameToUsers < ActiveRecord::Migration[5.2]
2  def change
3    add_column :users, :name, :string
4  end
5end

1class User < ApplicationRecord
2  # Include default devise modules. Others available are:
3  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
4  devise :database_authenticatable, :registerable,
5         :recoverable, :rememberable, :validatable,
6         :confirmable
7end

1class User < ApplicationRecord
2  # Include default devise modules. Others available are:
3  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
4  devise :database_authenticatable, :registerable,
5         :recoverable, :rememberable, :validatable,
6         :confirmable
7
8  # new function to set the password without knowing the current
9  # password used in our confirmation controller.
10  def attempt_set_password(params)
11    p = {}
12    p[:password] = params[:password]
13    p[:password_confirmation] = params[:password_confirmation]
14    update_attributes(p)
15  end
16
17  def password_match?
18     self.errors[:password] << "can't be blank" if password.blank?
19     self.errors[:password_confirmation] << "can't be blank" if password_confirmation.blank?
20     self.errors[:password_confirmation] << "does not match password" if password != password_confirmation
21     password == password_confirmation && !password.blank?
22  end
23
24  # new function to return whether a password has been set
25  def has_no_password?
26    self.encrypted_password.blank?
27  end
28
29  # Devise::Models:unless_confirmed` method doesn't exist in Devise 2.0.0 anymore.
30  # Instead you should use `pending_any_confirmation`.
31  def only_if_unconfirmed
32    pending_any_confirmation {yield}
33  end
34
35  def password_required?
36    # Password is required if it is being set, but not for new records
37    if !persisted?
38      false
39    else
40      !password.nil? || !password_confirmation.nil?
41    end
42  end
43end

1class RegistrationsController < Devise::RegistrationsController
2  private
3
4  def sign_up_params
5    params.require(:user).permit(:name, :email, :password, :password_confirmation)
6  end
7
8  def account_update_params
9    params.require(:user).permit(:name, :email, :password, :password_confirmation, :current_password)
10  end
11end

1class ConfirmationsController < Devise::ConfirmationsController
2  # Remove the first skip_before_filter (:require_no_authentication) if you
3  # don't want to enable logged users to access the confirmation page.
4  # If you are using rails 5.1+ use: skip_before_action
5  # skip_before_filter :require_no_authentication
6  # skip_before_filter :authenticate_user!
7
8  # PUT /resource/confirmation
9  def update
10    with_unconfirmed_confirmable do
11      if @confirmable.has_no_password?
12        @confirmable.attempt_set_password(params[:user])
13        if @confirmable.valid? and @confirmable.password_match?
14          do_confirm
15        else
16          do_show
17          @confirmable.errors.clear # so that we wont render :new
18        end
19      else
20        @confirmable.errors.add(:email, :password_already_set)
21      end
22    end
23
24    if !@confirmable.errors.empty?
25      self.resource = @confirmable
26      render 'devise/confirmations/new' # Change this if you don't have the views on default path
27    end
28  end
29
30  # GET /resource/confirmation?confirmation_token=abcdef
31  def show
32    with_unconfirmed_confirmable do
33      if @confirmable.has_no_password?
34        do_show
35      else
36        do_confirm
37      end
38    end
39    unless @confirmable.errors.empty?
40      self.resource = @confirmable
41      render 'devise/confirmations/new' # Change this if you don't have the views on default path
42    end
43  end
44
45  protected
46
47  def with_unconfirmed_confirmable
48    @confirmable = User.find_or_initialize_with_error_by(:confirmation_token, params[:confirmation_token])
49    if !@confirmable.new_record?
50      @confirmable.only_if_unconfirmed {yield}
51    end
52  end
53
54  def do_show
55    @confirmation_token = params[:confirmation_token]
56    @requires_password = true
57    self.resource = @confirmable
58    render 'devise/confirmations/show' # Change this if you don't have the views on default path
59  end
60
61  def do_confirm
62    @confirmable.confirm
63    set_flash_message :notice, :confirmed
64    sign_in_and_redirect(resource_name, @confirmable)
65  end
66end

1Rails.application.routes.draw do
2  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
3  root to: 'home#index'
4
5  devise_for :users, controllers: {
6    registrations: 'registrations',
7    confirmations: 'confirmations'
8  }
9
10  as :user do
11    put '/users/confirmation' => 'confirmations#update', via: :patch, as: :update_user_confirmation
12  end
13end