[Rails]Deviseをカスタマイズして、プロフィール更新とパスワード変更を分ける方法

$ rails generate devise:controllers users

      create  app/controllers/users/confirmations_controller.rb
      create  app/controllers/users/passwords_controller.rb
      create  app/controllers/users/registrations_controller.rb
      create  app/controllers/users/sessions_controller.rb
      create  app/controllers/users/unlocks_controller.rb
      create  app/controllers/users/omniauth_callbacks_controller.rb
===============================================================================

Some setup you must do manually if you haven't yet:

  Ensure you have overridden routes for generated controllers in your routes.rb.
  For example:

    Rails.application.routes.draw do
      devise_for :users, controllers: {
        sessions: 'users/sessions'
      }
    end

===============================================================================

  devise_for :users, controllers: {
    registrations: "users/registrations"
  }

# frozen_string_literal: true

class Users::RegistrationsController < Devise::RegistrationsController
  protected

  def update_resource(resource, params)
    resource.update_without_password(params)
  end
end

<h2>Edit <%= resource_name.to_s.humanize %></h2>

<%= form_for(resource, as: resource_name, url: registration_path(resource_name), html: { method: :put }) do |f| %>
  <%= render "devise/shared/error_messages", resource: resource %>

  <div class="field">
    <%= f.label :first_name %><br>
    <%= f.text_field :first_name %>
  </div>

  <div class="field">
    <%= f.label :last_name %><br>
    <%= f.text_field :last_name %>
  </div>

  <div class="field">
    <%= f.label :email %><br>
    <%= f.email_field :email, autocomplete: "email" %>
  </div>

  <% if devise_mapping.confirmable? && resource.pending_reconfirmation? %>
    <div>Currently waiting confirmation for: <%= resource.unconfirmed_email %></div>
  <% end %>

  <div class="actions">
    <%= f.submit "Update" %>
  </div>
<% end %>

<h3>Cancel my account</h3>

<div>Unhappy? <%= button_to "Cancel my account", registration_path(resource_name), data: { confirm: "Are you sure?", turbo_confirm: "Are you sure?" }, method: :delete %></div>

<%= link_to "Back", :back %>

  namespace :account do
    resource :password
  end

class Account::PasswordsController < ApplicationController
  before_action :authenticate_user!

  def show
    redirect_to edit_account_password_path
  end

  def edit
  end

  def update
    if current_user.update_with_password(password_params)
      bypass_sign_in current_user
      redirect_to account_password_path, notice: "Password updated successfully"
    else
      render :edit, status: :unprocessable_entity
    end
  end

  private

  def password_params
    params.require(:user).permit(:current_password, :password, :password_confirmation)
  end
end

<h2>Edit Password</h2>

<%= form_with(model: current_user, url: account_password_path, html: { method: :put }) do |f| %>
  <%= render "devise/shared/error_messages", resource: current_user %>

  <div class="field">
    <%= f.label :current_password %> <i>(we need your current password to confirm your changes)</i><br>
    <%= f.password_field :current_password, autocomplete: "current-password" %>
  </div>

  <div class="field">
    <%= f.label :password %> <i>(leave blank if you don't want to change it)</i><br>
    <%= f.password_field :password, autocomplete: "new-password" %>
    <% if @minimum_password_length %>
      <br>
      <em><%= @minimum_password_length %> characters minimum</em>
    <% end %>
  </div>

  <div class="field">
    <%= f.label :password_confirmation %><br>
    <%= f.password_field :password_confirmation, autocomplete: "new-password" %>
  </div>

  <div class="actions">
    <%= f.submit "Update" %>
  </div>
<% end %>

<% if user_signed_in? %>
  <li class="nav-item dropdown">
    <%= link_to "#", class: "nav-link dropdown-toggle", data: { bs_toggle: "dropdown" }, aria: { expanded: false } do %>
      <i class="bi bi-person-circle"></i>
    <% end %>
    <div class="dropdown-menu dropdown-menu-end" aria-labelledby="navbar-dropdown">
      <%= link_to "Settings", edit_user_registration_path, class: "dropdown-item" %>
      <%= link_to "Password", account_password_path, class: "dropdown-item" %>
      <div class="dropdown-divider"></div>
      <%= button_to "Logout", destroy_user_session_path, method: :delete, class: "dropdown-item" %>
    </div>
  </li>
<% else %>
  <li class="nav-item"><%= link_to "Sign Up", new_user_registration_path, class: "nav-link" %></li>
  <li class="nav-item"><%= link_to "Login", new_user_session_path, class: "nav-link" %></li>
<% end %>