[RUBY] Add an item when logging in with devise

【Development environment】 macOS Catalina Version 10.15.3 ruby 2.5.1 Rails 5.2.4.2 visual studio code

Add an item when logging in with devise

If you create a login function with devise, it is originally only an email address and password, but it is a method to add columns for other items.

Add the column you want to create

This time, add a column called company as an example.

$ rails g migration AddColumnToUsers company

Let's take a look at the created migration file. If you do not set the default value, an error will occur, so I will describe it.

Creation date and time_add_company_to_users.rb

class AddCompanyToUsers < ActiveRecord::Migration[5.2]
  def change
    add_column :users, :company, :string, null: false, default: ''
  end
end

When the description is finished, reflect it in the DB.

$ rails db:migrate

Add form to view

Add a form so that you can enter values in the columns you created. If you haven't created a devise view, create one.

$ rails g devise:views

registrations/new.html.erb

Add here---------------------------------
  <div class="field">
    <%= f.label :Please enter the hospital name and company name%><br />
    <%= f.text_field :company, autofocus: true, class: "new_inform"%>
  </div>
---------------------------------
  <div class="field">
    <%= f.label :Please enter your e-mail address%><br />
    <%= f.email_field :email, autofocus: true, autocomplete: "email", class: "new_inform" %>
  </div>

  <div class="field">
    <%= f.label :Please enter your password%>
    <% if @minimum_password_length %>
    <em>(<%= @minimum_password_length %>letter)</em>
    <% end %><br />
    <%= f.password_field :password, autocomplete: "new-password", class: "new_inform" %>
  </div>

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

  <div class="actions">
    <%= f.submit "sign up", class: "new_submit" %>
  </div>
<% end %>

Reflect the added column in DB

Use the configure_permitted_parameters method to set strong parameters.

devise\app\controllers\application_controller.rb

  before_action :configure_permitted_parameters, if: :devise_controller?

  protected

    def configure_permitted_parameters
      devise_parameter_sanitizer.permit(:sign_up, keys: [:company])
    end

Now it can be reflected in the DB.

I would appreciate it if you could point out any mistakes. Thank you for watching until the end.