Users, authorization and flash messages

app/assets/javascripts/application/layout.js

+$(document).on("click", ".close_notifications", function (e) {
+    e.preventDefault();
+    $(this).closest("li.nav-item").find("a.nav-link").click();
+});
+

app/assets/stylesheets/application/sb-abmin-2/navs/global.scss

@@ -3,26 +3,6 @@
 .sidebar,
 .topbar {
   .nav-item {
-    // Customize Dropdown Arrows for Navbar
-    &.dropdown {
-      .dropdown-toggle {
-        &::after {
-          width: 1rem;
-          text-align: center;
-          float: right;
-          vertical-align: 0;
-          border: 0;
-          font-weight: 900;
-          content: '\f105';
-          font-family: 'Font Awesome 5 Free';
-        }
-      }
-      &.show {
-        .dropdown-toggle::after {
-          content: '\f107';
-        }
-      }
-    }
     // Counter for nav links and nav link image sizing
     .nav-link {
       position: relative;

app/assets/stylesheets/application/sb-abmin-2/navs/sidebar.scss

@@ -4,6 +4,28 @@
   min-height: 100vh;
   .nav-item {
     position: relative;
+
+    // Customize Dropdown Arrows for Navbar
+    &.dropdown {
+      .dropdown-toggle {
+        &::after {
+          width: 1rem;
+          text-align: center;
+          float: right;
+          vertical-align: 0;
+          border: 0;
+          font-weight: 900;
+          content: '\f105';
+          font-family: 'Font Awesome 5 Free';
+        }
+      }
+      &.show {
+        .dropdown-toggle::after {
+          content: '\f107';
+        }
+      }
+    }
+
     &:last-child {
       margin-bottom: 1rem;
     }

app/controllers/application_controller.rb

 class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
+
+  before_action :authenticate_user!
 end

app/controllers/users_controller.rb

+class UsersController < ApplicationController
+  before_action :set_user, only: [:show, :edit, :update, :destroy]
+
+  # GET /users
+  # GET /users.json
+  def index
+    @users = User.all
+  end
+
+  # GET /users/1
+  # GET /users/1.json
+  def show
+  end
+
+  # GET /users/new
+  def new
+    @user = User.new
+  end
+
+  # GET /users/1/edit
+  def edit
+  end
+
+  # POST /users
+  # POST /users.json
+  def create
+    @user = User.new(user_params)
+
+    respond_to do |format|
+      if @user.save
+        format.html { redirect_to @user, notice: 'User was successfully created.' }
+        format.json { render :show, status: :created, location: @user }
+      else
+        format.html { render :new }
+        format.json { render json: @user.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # PATCH/PUT /users/1
+  # PATCH/PUT /users/1.json
+  def update
+    respond_to do |format|
+      if @user.update(user_params)
+        format.html { redirect_to @user, notice: 'User was successfully updated.' }
+        format.json { render :show, status: :ok, location: @user }
+      else
+        format.html { render :edit }
+        format.json { render json: @user.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /users/1
+  # DELETE /users/1.json
+  def destroy
+    @user.destroy
+    respond_to do |format|
+      format.html { redirect_to users_url, notice: 'User was successfully destroyed.' }
+      format.json { head :no_content }
+    end
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_user
+      @user = User.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def user_params
+      params.require(:user).permit(:name, :email, :password, :password_confirmation)
+    end
+end

app/helpers/application_helper.rb

 module ApplicationHelper
+
+  def flash_bg_class(flash_type)
+    case flash_type
+    when 'success'
+      'bg-success'
+    when 'error'
+      'bg-danger'
+    when 'alert'
+      'bg-warning'
+    when 'notice'
+      'bg-info'
+    else
+      flash_type.to_s
+    end
+  end
+
 end

app/models/user.rb

+class User < ApplicationRecord
+
+  devise :database_authenticatable, :rememberable, :validatable
+end

app/views/layouts/application/_flash_notices.haml

+%li.nav-item.dropdown.no-arrow{class: ("show" if flash.any?)}
+  %a.nav-link.dropdown-toggle{"aria-expanded" => flash.any?.to_s, "aria-haspopup" => "true", "data-toggle" => "dropdown", href: "#", role: "button"}
+    %i.fas.fa-bell.fa-fw
+  .dropdown-list.dropdown-menu.dropdown-menu-right.shadow.animated--grow-in{class: ("show" if flash.any?), "aria-labelledby" => "alertsDropdown"}
+    %h6.dropdown-header.text-center
+      = flash.any? ? "Сповіщення" : "Немає сповіщень"
+    - flash.each do |type, msg|
+      %a.dropdown-item.d-flex.align-items-center{class: flash_bg_class(type)}
+        %div
+          %span= msg
+    %a.close_notifications.dropdown-item.text-center.small.text-gray-500{href: "#"} Закрити
\ No newline at end of file

app/views/layouts/application/_sidebar.haml

@@ -7,11 +7,17 @@
       Chicken Farm
   %hr.sidebar-divider.my-0
 
+  / # TODO @kolosfed setup active page picking
   %li.nav-item.active
     = link_to root_path, class: 'nav-link' do
       = icon('fas', 'tachometer-alt', class: 'fa-fw') + "\n" + tag.span("Головна")
 
 
+  %li.nav-item
+    = link_to users_path, class: 'nav-link' do
+      = icon('fas', 'users', class: 'fa-fw') + "\n" + tag.span("Користувачі")
+
+
 
   %hr.sidebar-divider.d-none.d-md-block
   / Sidebar Toggler (Sidebar)

app/views/layouts/application/_topbar.haml

@@ -2,116 +2,28 @@
   / Sidebar Toggle (Topbar)
   %button#sidebarToggleTop.btn.btn-link.d-md-none.rounded-circle.mr-3
     %i.fa.fa-bars
-  / Topbar Search
-  %form.d-none.d-sm-inline-block.form-inline.mr-auto.ml-md-3.my-2.my-md-0.mw-100.navbar-search
-    .input-group
-      %input.form-control.bg-light.border-0.small{"aria-describedby" => "basic-addon2", "aria-label" => "Search", placeholder: "Search for...", type: "text"}/
-      .input-group-append
-        %button.btn.btn-primary{type: "button"}
-          %i.fas.fa-search.fa-sm
-  / Topbar Navbar
+
   %ul.navbar-nav.ml-auto
-    / Nav Item - Search Dropdown (Visible Only XS)
-    %li.nav-item.dropdown.no-arrow.d-sm-none
-      %a#searchDropdown.nav-link.dropdown-toggle{"aria-expanded" => "false", "aria-haspopup" => "true", "data-toggle" => "dropdown", href: "#", role: "button"}
-        %i.fas.fa-search.fa-fw
-      / Dropdown - Messages
-      .dropdown-menu.dropdown-menu-right.p-3.shadow.animated--grow-in{"aria-labelledby" => "searchDropdown"}
-        %form.form-inline.mr-auto.w-100.navbar-search
-          .input-group
-            %input.form-control.bg-light.border-0.small{"aria-describedby" => "basic-addon2", "aria-label" => "Search", placeholder: "Search for...", type: "text"}/
-            .input-group-append
-              %button.btn.btn-primary{type: "button"}
-                %i.fas.fa-search.fa-sm
-    / Nav Item - Alerts
-    %li.nav-item.dropdown.no-arrow.mx-1
-      %a#alertsDropdown.nav-link.dropdown-toggle{"aria-expanded" => "false", "aria-haspopup" => "true", "data-toggle" => "dropdown", href: "#", role: "button"}
-        %i.fas.fa-bell.fa-fw
-        / Counter - Alerts
-        %span.badge.badge-danger.badge-counter 3+
-      / Dropdown - Alerts
-      .dropdown-list.dropdown-menu.dropdown-menu-right.shadow.animated--grow-in{"aria-labelledby" => "alertsDropdown"}
-        %h6.dropdown-header
-          Alerts Center
-        %a.dropdown-item.d-flex.align-items-center{href: "#"}
-          .mr-3
+
+    = render "layouts/application/flash_notices"
+
+    - if user_signed_in?
+      .topbar-divider
+
+      %li.nav-item.dropdown
+        %a.my-auto.nav-link.text-gray-600.dropdown-toggle{"aria-expanded" => "false", "aria-haspopup" => "true", "data-toggle" => "dropdown", href: "#", role: "button"}
+          %span= current_user.name
+        .dropdown-menu.dropdown-menu-right.shadow.animated--grow-in
+          = link_to user_path(current_user), class: "dropdown-item" do
+            = icon("fas", "user", class: "fa-sm fa-fw mr-2 text-gray-400")
+            Ваш профіль
+          = link_to destroy_user_session_path, method: :delete, class: "dropdown-item" do
+            = icon("fas", "sign-out-alt", class: "fa-sm fa-fw mr-2 text-gray-400")
+            Вийти
+
+    -#.topbar-divider.d-none.d-sm-block
+    -#%li.nav-item.my-auto
+    -#  %span= icon("fas", "user")
+    -#.topbar-divider.d-none.d-sm-block
+    -#%li.nav-item.my-auto
+    -#  %span= icon("fas", "sign-out-alt")
\ No newline at end of file
-            .icon-circle.bg-primary
-              %i.fas.fa-file-alt.text-white
-          %div
-            .small.text-gray-500 December 12, 2019
-            %span.font-weight-bold A new monthly report is ready to download!
-        %a.dropdown-item.d-flex.align-items-center{href: "#"}
-          .mr-3
-            .icon-circle.bg-success
-              %i.fas.fa-donate.text-white
-          %div
-            .small.text-gray-500 December 7, 2019
-            $290.29 has been deposited into your account!
-        %a.dropdown-item.d-flex.align-items-center{href: "#"}
-          .mr-3
-            .icon-circle.bg-warning
-              %i.fas.fa-exclamation-triangle.text-white
-          %div
-            .small.text-gray-500 December 2, 2019
-            Spending Alert: We've noticed unusually high spending for your account.
-        %a.dropdown-item.text-center.small.text-gray-500{href: "#"} Show All Alerts
-    / Nav Item - Messages
-    %li.nav-item.dropdown.no-arrow.mx-1
-      %a#messagesDropdown.nav-link.dropdown-toggle{"aria-expanded" => "false", "aria-haspopup" => "true", "data-toggle" => "dropdown", href: "#", role: "button"}
-        %i.fas.fa-envelope.fa-fw
-        / Counter - Messages
-        %span.badge.badge-danger.badge-counter 7
-      / Dropdown - Messages
-      .dropdown-list.dropdown-menu.dropdown-menu-right.shadow.animated--grow-in{"aria-labelledby" => "messagesDropdown"}
-        %h6.dropdown-header
-          Message Center
-        %a.dropdown-item.d-flex.align-items-center{href: "#"}
-          .dropdown-list-image.mr-3
-            %img.rounded-circle{alt: "", src: "https://source.unsplash.com/fn_BT9fwg_E/60x60"}/
-            .status-indicator.bg-success
-          .font-weight-bold
-            .text-truncate Hi there! I am wondering if you can help me with a problem I've been having.
-            .small.text-gray-500 Emily Fowler · 58m
-        %a.dropdown-item.d-flex.align-items-center{href: "#"}
-          .dropdown-list-image.mr-3
-            %img.rounded-circle{alt: "", src: "https://source.unsplash.com/AU4VPcFN4LE/60x60"}/
-            .status-indicator
-          %div
-            .text-truncate I have the photos that you ordered last month, how would you like them sent to you?
-            .small.text-gray-500 Jae Chun · 1d
-        %a.dropdown-item.d-flex.align-items-center{href: "#"}
-          .dropdown-list-image.mr-3
-            %img.rounded-circle{alt: "", src: "https://source.unsplash.com/CS2uCrpNzJY/60x60"}/
-            .status-indicator.bg-warning
-          %div
-            .text-truncate Last month's report looks great, I am very happy with the progress so far, keep up the good work!
-            .small.text-gray-500 Morgan Alvarez · 2d
-        %a.dropdown-item.d-flex.align-items-center{href: "#"}
-          .dropdown-list-image.mr-3
-            %img.rounded-circle{alt: "", src: "https://source.unsplash.com/Mv9hjnEUHR4/60x60"}/
-            .status-indicator.bg-success
-          %div
-            .text-truncate Am I a good boy? The reason I ask is because someone told me that people say this to all dogs, even if they aren't good...
-            .small.text-gray-500 Chicken the Dog · 2w
-        %a.dropdown-item.text-center.small.text-gray-500{href: "#"} Read More Messages
-    .topbar-divider.d-none.d-sm-block
-    / Nav Item - User Information
-    %li.nav-item.dropdown.no-arrow
-      %a#userDropdown.nav-link.dropdown-toggle{"aria-expanded" => "false", "aria-haspopup" => "true", "data-toggle" => "dropdown", href: "#", role: "button"}
-        %span.mr-2.d-none.d-lg-inline.text-gray-600.small Valerie Luna
-        %img.img-profile.rounded-circle{src: "https://source.unsplash.com/QAB-WJcbgJk/60x60"}/
-      / Dropdown - User Information
-      .dropdown-menu.dropdown-menu-right.shadow.animated--grow-in{"aria-labelledby" => "userDropdown"}
-        %a.dropdown-item{href: "#"}
-          %i.fas.fa-user.fa-sm.fa-fw.mr-2.text-gray-400
-          Profile
-        %a.dropdown-item{href: "#"}
-          %i.fas.fa-cogs.fa-sm.fa-fw.mr-2.text-gray-400
-          Settings
-        %a.dropdown-item{href: "#"}
-          %i.fas.fa-list.fa-sm.fa-fw.mr-2.text-gray-400
-          Activity Log
-        .dropdown-divider
-        %a.dropdown-item{"data-target" => "#logoutModal", "data-toggle" => "modal", href: "#"}
-          %i.fas.fa-sign-out-alt.fa-sm.fa-fw.mr-2.text-gray-400
-          Logout
\ No newline at end of file

app/views/users/_form.html.haml

+= form_for @user do |f|
+  - if @user.errors.any?
+    #error_explanation
+      %h2= "#{pluralize(@user.errors.count, "error")} prohibited this user from being saved:"
+      %ul
+        - @user.errors.full_messages.each do |message|
+          %li= message
+
+  .field
+    = f.label :name
+    = f.text_field :name
+  .field
+    = f.label :email
+    = f.text_field :email
+  .field
+    = f.label :password
+    = f.text_field :password
+  .actions
+    = f.submit 'Save'

app/views/users/edit.html.haml

+%h1 Editing user
+
+= render 'form'
+
+= link_to 'Show', @user
+\|
+= link_to 'Back', users_path

app/views/users/index.html.haml

+%h1 Listing users
+
+%table
+  %thead
+    %tr
+      %th Name
+      %th Email
+      %th Password
+      %th
+      %th
+      %th
+
+  %tbody
+    - @users.each do |user|
+      %tr
+        %td= user.name
+        %td= user.email
+        %td= user.password
+        %td= link_to 'Show', user
+        %td= link_to 'Edit', edit_user_path(user)
+        %td= link_to 'Destroy', user, method: :delete, data: { confirm: 'Are you sure?' }
+
+%br
+
+= link_to 'New User', new_user_path

app/views/users/new.html.haml

+%h1 New user
+
+= render 'form'
+
+= link_to 'Back', users_path

app/views/users/show.html.haml

+%p#notice= notice
+
+%p
+  %b Name:
+  = @user.name
+%p
+  %b Email:
+  = @user.email
+%p
+  %b Password:
+  = @user.password
+
+= link_to 'Edit', edit_user_path(@user)
+\|
+= link_to 'Back', users_path

config/initializers/devise.rb

+# frozen_string_literal: true
+
+# Use this hook to configure devise mailer, warden hooks and so forth.
+# Many of these configuration options can be set straight in your model.
+Devise.setup do |config|
+  # The secret key used by Devise. Devise uses this key to generate
+  # random tokens. Changing this key will render invalid all existing
+  # confirmation, reset password and unlock tokens in the database.
+  # Devise will use the `secret_key_base` as its `secret_key`
+  # by default. You can change it below and use your own secret key.
+  # config.secret_key = 'cd1adeb2c31228312d2c0412a393f012e52d77ec895d1e917adc2348a15f4fe26a30b2ce50f9febd71258f836453021d303e2aef50a787af6615cce5c0faef0d'
+
+  # ==> Controller configuration
+  # Configure the parent class to the devise controllers.
+  # config.parent_controller = 'DeviseController'
+
+  # ==> Mailer Configuration
+  # Configure the e-mail address which will be shown in Devise::Mailer,
+  # note that it will be overwritten if you use your own mailer class
+  # with default "from" parameter.
+  config.mailer_sender = 'please-change-me-at-config-initializers-devise@example.com'
+
+  # Configure the class responsible to send e-mails.
+  # config.mailer = 'Devise::Mailer'
+
+  # Configure the parent class responsible to send e-mails.
+  # config.parent_mailer = 'ActionMailer::Base'
+
+  # ==> ORM configuration
+  # Load and configure the ORM. Supports :active_record (default) and
+  # :mongoid (bson_ext recommended) by default. Other ORMs may be
+  # available as additional gems.
+  require 'devise/orm/active_record'
+
+  # ==> Configuration for any authentication mechanism
+  # Configure which keys are used when authenticating a user. The default is
+  # just :email. You can configure it to use [:username, :subdomain], so for
+  # authenticating a user, both parameters are required. Remember that those
+  # parameters are used only when authenticating and not when retrieving from
+  # session. If you need permissions, you should implement that in a before filter.
+  # You can also supply a hash where the value is a boolean determining whether
+  # or not authentication should be aborted when the value is not present.
+  # config.authentication_keys = [:email]
+
+  # Configure parameters from the request object used for authentication. Each entry
+  # given should be a request method and it will automatically be passed to the
+  # find_for_authentication method and considered in your model lookup. For instance,
+  # if you set :request_keys to [:subdomain], :subdomain will be used on authentication.
+  # The same considerations mentioned for authentication_keys also apply to request_keys.
+  # config.request_keys = []
+
+  # Configure which authentication keys should be case-insensitive.
+  # These keys will be downcased upon creating or modifying a user and when used
+  # to authenticate or find a user. Default is :email.
+  config.case_insensitive_keys = [:email]
+
+  # Configure which authentication keys should have whitespace stripped.
+  # These keys will have whitespace before and after removed upon creating or
+  # modifying a user and when used to authenticate or find a user. Default is :email.
+  config.strip_whitespace_keys = [:email]
+
+  # Tell if authentication through request.params is enabled. True by default.
+  # It can be set to an array that will enable params authentication only for the
+  # given strategies, for example, `config.params_authenticatable = [:database]` will
+  # enable it only for database (email + password) authentication.
+  # config.params_authenticatable = true
+
+  # Tell if authentication through HTTP Auth is enabled. False by default.
+  # It can be set to an array that will enable http authentication only for the
+  # given strategies, for example, `config.http_authenticatable = [:database]` will
+  # enable it only for database authentication. The supported strategies are:
+  # :database      = Support basic authentication with authentication key + password
+  # config.http_authenticatable = false
+
+  # If 401 status code should be returned for AJAX requests. True by default.
+  # config.http_authenticatable_on_xhr = true
+
+  # The realm used in Http Basic Authentication. 'Application' by default.
+  # config.http_authentication_realm = 'Application'
+
+  # It will change confirmation, password recovery and other workflows
+  # to behave the same regardless if the e-mail provided was right or wrong.
+  # Does not affect registerable.
+  # config.paranoid = true
+
+  # By default Devise will store the user in session. You can skip storage for
+  # particular strategies by setting this option.
+  # Notice that if you are skipping storage for all authentication paths, you
+  # may want to disable generating routes to Devise's sessions controller by
+  # passing skip: :sessions to `devise_for` in your config/routes.rb
+  config.skip_session_storage = [:http_auth]
+
+  # By default, Devise cleans up the CSRF token on authentication to
+  # avoid CSRF token fixation attacks. This means that, when using AJAX
+  # requests for sign in and sign up, you need to get a new CSRF token
+  # from the server. You can disable this option at your own risk.
+  # config.clean_up_csrf_token_on_authentication = true
+
+  # When false, Devise will not attempt to reload routes on eager load.
+  # This can reduce the time taken to boot the app but if your application
+  # requires the Devise mappings to be loaded during boot time the application
+  # won't boot properly.
+  # config.reload_routes = true
+
+  # ==> Configuration for :database_authenticatable
+  # For bcrypt, this is the cost for hashing the password and defaults to 11. If
+  # using other algorithms, it sets how many times you want the password to be hashed.
+  #
+  # Limiting the stretches to just one in testing will increase the performance of
+  # your test suite dramatically. However, it is STRONGLY RECOMMENDED to not use
+  # a value less than 10 in other environments. Note that, for bcrypt (the default
+  # algorithm), the cost increases exponentially with the number of stretches (e.g.
+  # a value of 20 is already extremely slow: approx. 60 seconds for 1 calculation).
+  config.stretches = Rails.env.test? ? 1 : 11
+
+  # Set up a pepper to generate the hashed password.
+  # config.pepper = 'a9fcce24cce54df2b065be0a8004511e2d8a714afa18bc94e4cb0e7ba20b81405df8a4866d8c9b544eda054c39a43cffa9742a7750a0ac44bdd6c062dcf0a6c5'
+
+  # Send a notification to the original email when the user's email is changed.
+  # config.send_email_changed_notification = false
+
+  # Send a notification email when the user's password is changed.
+  # config.send_password_change_notification = false
+
+  # ==> Configuration for :confirmable
+  # A period that the user is allowed to access the website even without
+  # confirming their account. For instance, if set to 2.days, the user will be
+  # able to access the website for two days without confirming their account,
+  # access will be blocked just in the third day.
+  # You can also set it to nil, which will allow the user to access the website
+  # without confirming their account.
+  # Default is 0.days, meaning the user cannot access the website without
+  # confirming their account.
+  # config.allow_unconfirmed_access_for = 2.days
+
+  # A period that the user is allowed to confirm their account before their
+  # token becomes invalid. For example, if set to 3.days, the user can confirm
+  # their account within 3 days after the mail was sent, but on the fourth day
+  # their account can't be confirmed with the token any more.
+  # Default is nil, meaning there is no restriction on how long a user can take
+  # before confirming their account.
+  # config.confirm_within = 3.days
+
+  # If true, requires any email changes to be confirmed (exactly the same way as
+  # initial account confirmation) to be applied. Requires additional unconfirmed_email
+  # db field (see migrations). Until confirmed, new email is stored in
+  # unconfirmed_email column, and copied to email column on successful confirmation.
+  config.reconfirmable = true
+
+  # Defines which key will be used when confirming an account
+  # config.confirmation_keys = [:email]
+
+  # ==> Configuration for :rememberable
+  # The time the user will be remembered without asking for credentials again.
+  # config.remember_for = 2.weeks
+
+  # Invalidates all the remember me tokens when the user signs out.
+  config.expire_all_remember_me_on_sign_out = true
+
+  # If true, extends the user's remember period when remembered via cookie.
+  # config.extend_remember_period = false
+
+  # Options to be passed to the created cookie. For instance, you can set
+  # secure: true in order to force SSL only cookies.
+  # config.rememberable_options = {}
+
+  # ==> Configuration for :validatable
+  # Range for password length.
+  config.password_length = 6..128
+
+  # Email regex used to validate email formats. It simply asserts that
+  # one (and only one) @ exists in the given string. This is mainly
+  # to give user feedback and not to assert the e-mail validity.
+  config.email_regexp = /\A[^@\s]+@[^@\s]+\z/
+
+  # ==> Configuration for :timeoutable
+  # The time you want to timeout the user session without activity. After this
+  # time the user will be asked for credentials again. Default is 30 minutes.
+  # config.timeout_in = 30.minutes
+
+  # ==> Configuration for :lockable
+  # Defines which strategy will be used to lock an account.
+  # :failed_attempts = Locks an account after a number of failed attempts to sign in.
+  # :none            = No lock strategy. You should handle locking by yourself.
+  # config.lock_strategy = :failed_attempts
+
+  # Defines which key will be used when locking and unlocking an account
+  # config.unlock_keys = [:email]
+
+  # Defines which strategy will be used to unlock an account.
+  # :email = Sends an unlock link to the user email
+  # :time  = Re-enables login after a certain amount of time (see :unlock_in below)
+  # :both  = Enables both strategies
+  # :none  = No unlock strategy. You should handle unlocking by yourself.
+  # config.unlock_strategy = :both
+
+  # Number of authentication tries before locking an account if lock_strategy
+  # is failed attempts.
+  # config.maximum_attempts = 20
+
+  # Time interval to unlock the account if :time is enabled as unlock_strategy.
+  # config.unlock_in = 1.hour
+
+  # Warn on the last attempt before the account is locked.
+  # config.last_attempt_warning = true
+
+  # ==> Configuration for :recoverable
+  #
+  # Defines which key will be used when recovering the password for an account
+  # config.reset_password_keys = [:email]
+
+  # Time interval you can reset your password with a reset password key.
+  # Don't put a too small interval or your users won't have the time to
+  # change their passwords.
+  config.reset_password_within = 6.hours
+
+  # When set to false, does not sign a user in automatically after their password is
+  # reset. Defaults to true, so a user is signed in automatically after a reset.
+  # config.sign_in_after_reset_password = true
+
+  # ==> Configuration for :encryptable
+  # Allow you to use another hashing or encryption algorithm besides bcrypt (default).
+  # You can use :sha1, :sha512 or algorithms from others authentication tools as
+  # :clearance_sha1, :authlogic_sha512 (then you should set stretches above to 20
+  # for default behavior) and :restful_authentication_sha1 (then you should set
+  # stretches to 10, and copy REST_AUTH_SITE_KEY to pepper).
+  #
+  # Require the `devise-encryptable` gem when using anything other than bcrypt
+  # config.encryptor = :sha512
+
+  # ==> Scopes configuration
+  # Turn scoped views on. Before rendering "sessions/new", it will first check for
+  # "users/sessions/new". It's turned off by default because it's slower if you
+  # are using only default views.
+  # config.scoped_views = false
+
+  # Configure the default scope given to Warden. By default it's the first
+  # devise role declared in your routes (usually :user).
+  # config.default_scope = :user
+
+  # Set this configuration to false if you want /users/sign_out to sign out
+  # only the current scope. By default, Devise signs out all scopes.
+  # config.sign_out_all_scopes = true
+
+  # ==> Navigation configuration
+  # Lists the formats that should be treated as navigational. Formats like
+  # :html, should redirect to the sign in page when the user does not have
+  # access, but formats like :xml or :json, should return 401.
+  #
+  # If you have any extra navigational formats, like :iphone or :mobile, you
+  # should add them to the navigational formats lists.
+  #
+  # The "*/*" below is required to match Internet Explorer requests.
+  # config.navigational_formats = ['*/*', :html]
+
+  # The default HTTP method used to sign out a resource. Default is :delete.
+  config.sign_out_via = :delete
+
+  # ==> OmniAuth
+  # Add a new OmniAuth provider. Check the wiki for more information on setting
+  # up on your models and hooks.
+  # config.omniauth :github, 'APP_ID', 'APP_SECRET', scope: 'user,public_repo'
+
+  # ==> Warden configuration
+  # If you want to use other strategies, that are not supported by Devise, or
+  # change the failure app, you can configure them inside the config.warden block.
+  #
+  # config.warden do |manager|
+  #   manager.intercept_401 = false
+  #   manager.default_strategies(scope: :user).unshift :some_external_strategy
+  # end
+
+  # ==> Mountable engine configurations
+  # When using Devise inside an engine, let's call it `MyEngine`, and this engine
+  # is mountable, there are some extra configurations to be taken into account.
+  # The following options are available, assuming the engine is mounted as:
+  #
+  #     mount MyEngine, at: '/my_engine'
+  #
+  # The router that invoked `devise_for`, in the example above, would be:
+  # config.router_name = :my_engine
+  #
+  # When using OmniAuth, Devise cannot automatically set OmniAuth path,
+  # so you need to do it manually. For the users scope, it would be:
+  # config.omniauth_path_prefix = '/my_engine/users/auth'
+
+  # ==> Turbolinks configuration
+  # If your app is using Turbolinks, Turbolinks::Controller needs to be included to make redirection work correctly:
+  #
+  # ActiveSupport.on_load(:devise_failure_app) do
+  #   include Turbolinks::Controller
+  # end
+
+  # ==> Configuration for :registerable
+
+  # When set to false, does not sign a user in automatically after their password is
+  # changed. Defaults to true, so a user is signed in automatically after changing a password.
+  # config.sign_in_after_change_password = true
+end

config/locales/devise.en.yml

+# Additional translations at https://github.com/plataformatec/devise/wiki/I18n
+
+en:
+  devise:
+    confirmations:
+      confirmed: "Your email address has been successfully confirmed."
+      send_instructions: "You will receive an email with instructions for how to confirm your email address in a few minutes."
+      send_paranoid_instructions: "If your email address exists in our database, you will receive an email with instructions for how to confirm your email address in a few minutes."
+    failure:
+      already_authenticated: "You are already signed in."
+      inactive: "Your account is not activated yet."
+      invalid: "Invalid %{authentication_keys} or password."
+      locked: "Your account is locked."
+      last_attempt: "You have one more attempt before your account is locked."
+      not_found_in_database: "Invalid %{authentication_keys} or password."
+      timeout: "Your session expired. Please sign in again to continue."
+      unauthenticated: "You need to sign in or sign up before continuing."
+      unconfirmed: "You have to confirm your email address before continuing."
+    mailer:
+      confirmation_instructions:
+        subject: "Confirmation instructions"
+      reset_password_instructions:
+        subject: "Reset password instructions"
+      unlock_instructions:
+        subject: "Unlock instructions"
+      email_changed:
+        subject: "Email Changed"
+      password_change:
+        subject: "Password Changed"
+    omniauth_callbacks:
+      failure: "Could not authenticate you from %{kind} because \"%{reason}\"."
+      success: "Successfully authenticated from %{kind} account."
+    passwords:
+      no_token: "You can't access this page without coming from a password reset email. If you do come from a password reset email, please make sure you used the full URL provided."
+      send_instructions: "You will receive an email with instructions on how to reset your password in a few minutes."
+      send_paranoid_instructions: "If your email address exists in our database, you will receive a password recovery link at your email address in a few minutes."
+      updated: "Your password has been changed successfully. You are now signed in."
+      updated_not_active: "Your password has been changed successfully."
+    registrations:
+      destroyed: "Bye! Your account has been successfully cancelled. We hope to see you again soon."
+      signed_up: "Welcome! You have signed up successfully."
+      signed_up_but_inactive: "You have signed up successfully. However, we could not sign you in because your account is not yet activated."
+      signed_up_but_locked: "You have signed up successfully. However, we could not sign you in because your account is locked."
+      signed_up_but_unconfirmed: "A message with a confirmation link has been sent to your email address. Please follow the link to activate your account."
+      update_needs_confirmation: "You updated your account successfully, but we need to verify your new email address. Please check your email and follow the confirmation link to confirm your new email address."
+      updated: "Your account has been updated successfully."
+      updated_but_not_signed_in: "Your account has been updated successfully, but since your password was changed, you need to sign in again"
+    sessions:
+      signed_in: "Signed in successfully."
+      signed_out: "Signed out successfully."
+      already_signed_out: "Signed out successfully."
+    unlocks:
+      send_instructions: "You will receive an email with instructions for how to unlock your account in a few minutes."
+      send_paranoid_instructions: "If your account exists, you will receive an email with instructions for how to unlock it in a few minutes."
+      unlocked: "Your account has been unlocked successfully. Please sign in to continue."
+  errors:
+    messages:
+      already_confirmed: "was already confirmed, please try signing in"
+      confirmation_period_expired: "needs to be confirmed within %{period}, please request a new one"
+      expired: "has expired, please request a new one"
+      not_found: "not found"
+      not_locked: "was not locked"
+      not_saved:
+        one: "1 error prohibited this %{resource} from being saved:"
+        other: "%{count} errors prohibited this %{resource} from being saved:"

config/routes.rb

 Rails.application.routes.draw do
 
+  devise_for :users
+
+  resources :users
+
   root 'main#start_page'
 
 end

db/migrate/20200405142932_create_users.rb

+class CreateUsers < ActiveRecord::Migration[5.2]
+  def change
+    create_table :users do |t|
+      t.string :name, null: false
+      t.string :email
+      t.string :encrypted_password, null: false
+      t.datetime :remember_created_at
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# Note that this schema.rb definition is the authoritative source for your
+# database schema. If you need to create the application database on another
+# system, you should be using db:schema:load, not running all the migrations
+# from scratch. The latter is a flawed and unsustainable approach (the more migrations
+# you'll amass, the slower it'll run and the greater likelihood for issues).
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema.define(version: 2020_04_05_142932) do
+
+  create_table "users", options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "email"
+    t.string "encrypted_password", null: false
+    t.datetime "remember_created_at"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+end