How to add nested form in devise resource
Problem: Suppose We have a User has one Company model relationship (where company has name attribute) and while signup you want to add and validate company name (uniqueness).
Solution:
1.add following lines in User model
accepts_nested_attributes_for :company
validates_associated :company
2. To override devise views
rails g devise:views users
3. Modify the app/views/devise/registrations/new.html.haml
= form_for(resource, as: resource_name, url: registration_path(resource_name), class: "form-signin") do |f|
%h4.form-signin-heading
= "Sign up"
= devise_error_messages!
.field
= f.email_field :email, autofocus: true, class: 'form-control', placeholder: "Email"
= f.fields_for :company do |a|
.field
= a.text_field :name, class: 'form-control', placeholder: "Company Name"
.field
= f.password_field :password, autocomplete: "off", class: 'form-control', placeholder: "Password"
.field
= f.password_field :password_confirmation, autocomplete: "off", class: 'form-control', placeholder: "Confirm Password"
%br/
%button.btn.btn-lg.btn-primary.btn-block{:type => "submit"} Sign Up
= render "devise/shared/links"
5. In Application Controller override devise's configure_permitted_parameters method
def configure_permitted_parameters
devise_parameter_sanitizer.permit(:sign_up, keys: [company_attributes: :name] )
end
6.Override Registration controller (generate Registration controller inside user folder) and copies the following co
class Users::RegistrationsController < Devise::RegistrationsController
def new
build_resource({})
resource.build_company
respond_with self.resource
end
end
Please let me know if any issue or correction in my post.
