building a has_one relation with devise user in rails - ruby-on-rails

Question

Im new to rails and am having difficulty creating a profile by a devise user
here is the ProfileController:
class ProfilesController < ApplicationController
before_action :set_profile, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!
def index
#profiles = Profile.all
end
def new
#profile = current_user.build_profile
end
def create
#profile = current_user.build_profiles(profile_params)
redirect_to profiles_path
end
def show
end
def edit
end
def update
#profile.update(profile_params)
redirect_to(profiles_path(#profile))
end
def destroy
#profile.destroy
redirect_to profiles_path
end
private
def profile_params
params.require(:profile).permit(:university, :degree)
end
def set_profile
#profile = Profile.find(params[:id])
end
end
When i run the rails server i can submit the form but nothing is getting stored in the model 'Profile'
here is the index.html.erb where the data should appear:
<h2>profiles</h2>
<% #profiles.each do |profile| %>
<%= link_to profile do %>
<%= profile.university %>
<% end %>
<%= profile.degree %>
<% end %>
user.rb file:
has_one :profile
and the profile.rb file:
belongs_to :user
nothing seems to be getting saved to the profile model and nothing is getting displayed on the index.html.erb. Also i have created a migration to store user_id in the profile model.
Thank for your help

Answer 1

By far the best way to create a profile for a user is to build it when the User object is created:
#app/models/user.rb
class User < ActiveRecord::Base
has_one :profile
before_create :build_profile
accepts_nested_attributes_for :profile
end
#app/models/profile.rb
class Profile < ActiveRecord::Base
belongs_to :user
end
This will build a blank profile each time a new user is created. It means that each user will only ever have one profile, which they'll be able to populate & edit.
In regards your issue, there are several points:
Don't list "profiles" with an index, list users & pull their profile data
If managing a profile, nest it under the associative user model
Here's how to do that:
# config/routes.rb
resources :users, only: :index
resource :profile, only: [:show, :update]
#app/controllers/profiles_controller.rb
class ProfilesController < ApplicationController
def show
end
def update
redirect_to :show if current_user.update profile_params
end
private
def profile_params
params.require(:user).permit(profile_attributes: [:name])
end
end
#app/views/profiles/show.html.erb
<%= form_for current_user, url: profile_path do |f| %>
<%= f.fields_for :profile do |p| %>
<%= p.text_field :name %>
<% end %>
<%= f.submit %>
<% end %>
Update
My post above is exactly what we do.
The way it works is very simple -- when a User is created (IE they have gone to the trouble of filling out their details), the Rails backend automatically creates a blank Profile object.
This does several things:
Always makes sure you have a Profile for each user (you don't have to go to the bother of making them "create" a profile).
Gives you the ability to validate only inputted data on a created Profile (not having to guess whether it's already been done).
--
If you're getting undefined method build_profile, it means your associations are incorrect.
All singular associations have build_[association] as defined instance methods. The code I provided fires build_profile for a has_one association. The only time it would be "undefined" would be if the association was plural
--
Update
This suggests a routing error.
Considering it appears at root, I think the problem is here:
#app/views/layouts/application.html.erb
<%= link_to "Profile", profile_path %>
You don't have edit_profile_path -- it should just be profile_path

Answer 2

It needs a save call for the profile which you build in crate method.
e.g.
def create
#user = User.new(user_params)
if #user.save
redirect_to root_url
else
render :new
end
end
if condition checks is data save correct or not. And change example's User model to your Profile model
BTW, just careful with the plural, I think it should use 'build_profile' instead 'build_profiles'