Rails 4-嵌套资源的路由

Question

I am trying to make a navbar in my rails 4 app.

When a user registers, I want to automatically build a profile for that user.

I have models for user and profile. The associations are:

user has_one profile
profile belongs_to user

I'm struggling with the automatic build, but I have a different question now.

In my navbar, I have a link to the users profile. I'm trying to figure out how to get that link to work.

I have routes as follows:

 resources :users do
     resources :profiles
  end

I have also tried my routes using profile (singular), as:

resources :users do
    resources :profile
end

In my navbar, I have:

<% if user_signed_in? %>
                    Hi <%= link_to(current_user.first_name.titlecase, user_profile_path(@current_user, @profile)) %></span>
                <span class="deviselinks" style="padding-right:30px">
                    <%= link_to "Sign out", destroy_user_session_path, :method => :delete %></span>

                  <% else %>

I have also tried without the '@' symbols, as:

Hi <%= link_to(current_user.first_name.titlecase, user_profile_path(current_user, profile)) %></span>

I have also tried:

Hi <%= link_to 'current_user.first_name.titlecase', [@current_user, @profile] %></span>

To me, this appears consistent with the rails guide example: http://guides.rubyonrails.org/routing.html

When I try this, I try creating a new user, but I get this error message:

ActionView::Template::Error (Nil location provided. Can't build URI.):
2015-12-28T21:08:51.228286+00:00 app[web.1]: 
2015-12-28T21:08:51.228279+00:00 app[web.1]:     11:               <ul style="text-align: right">
2015-12-28T21:08:51.228287+00:00 app[web.1]: 
2015-12-28T21:08:51.228280+00:00 app[web.1]:     12:                 <span class="deviselinks" style="padding-right:30px">
2015-12-28T21:08:51.228281+00:00 app[web.1]:     13:                   <% if user_signed_in? %>
2015-12-28T21:08:51.228282+00:00 app[web.1]:     14:                     Hi <%= link_to 'current_user.first_name.titlecase', [@current_user, @profile] %></span>
2015-12-28T21:08:51.228282+00:00 app[web.1]:     15: 

When I try the navbar path as:

Hi <%= link_to 'current_user.first_name.titlecase', user_profile_path(@current_user, @profile) %>

I get this error:

ActionView::Template::Error (No route matches {:action=>"show", :controller=>"profiles", :id=>nil, :user_id=>nil} missing required keys: [:id, :user_id]):

Can anyone see how to set this up properly so the navbar links to the current users profile show page?

When I rake routes for grep profile, I get:

user_profiles GET       /users/:user_id/profiles(.:format)          profiles#index
                         POST      /users/:user_id/profiles(.:format)          profiles#create
        new_user_profile GET       /users/:user_id/profiles/new(.:format)      profiles#new
       edit_user_profile GET       /users/:user_id/profiles/:id/edit(.:format) profiles#edit
            user_profile GET       /users/:user_id/profiles/:id(.:format)      profiles#show
                         PATCH     /users/:user_id/profiles/:id(.:format)      profiles#update
                         PUT       /users/:user_id/profiles/:id(.:format)      profiles#update
                         DELETE    /users/:user_id/profiles/:id(.:format)      profiles#destroy

ANOTHER ATTEMPT

When I try changing the nav bar link to:

Hi <%= link_to 'current_user.first_name.titlecase', user_profile_path(@user, @profile) %></span>

I get the same error as I set out above.

ANOTHER ATTEMPT

When I try changing the nav bar link to:

Hi <%= link_to 'current_user.first_name.titlecase', user_profile_path(@user_id, @profile_id) %></span>

I get the same error as I set out above.

ANOTHER ATTEMPT

When I try changing my routes to:

devise_for :users, #class_name: 'FormUser',
             :controllers => {
                :registrations => "users/registrations",
                # :omniauth_callbacks => "users/authentications"
                :omniauth_callbacks => 'users/omniauth_callbacks'
           }

  # get '/auth/:provider/callback' => 'users/authentications#create'
  # get '/authentications/sign_out', :to => 'users/authentications#destroy' 

  # PER SOURCEY TUTORIAL ----------
  match '/users/:id/finish_signup' => 'users#finish_signup', via: [:get, :patch], :as => :finish_signup
resources :users do
     resources :profiles, only: [:new, :create]
  end
resources :profiles, only: [:show, :edit, :update, :destroy]

And changing my nav bar link to:

 Hi <%= link_to 'current_user.first_name.titlecase', profile_path(@profile) %>

I get this error:

ActionView::Template::Error (No route matches {:action=>"show", :controller=>"profiles", :id=>nil} missing required keys: [:id]):

When I try the nav bar link as shown in the suggestion below:

Hi <%= link_to (current_user.first_name.titlecase, profile_path(@profile)) %></span>

I get this error:

SyntaxError (/app/app/views/pages/_nav.html.erb:14: syntax error, unexpected ',', expecting ')'
2015-12-28T22:14:54.726458+00:00 app[web.1]: ...rent_user.first_name.titlecase, profile_path(@profile)) );@o...
2015-12-28T22:14:54.726459+00:00 app[web.1]: ...                               ^
2015-12-28T22:14:54.726460+00:00 app[web.1]: /app/app/views/pages/_nav.html.erb:14: syntax error, unexpected ')', expecting keyword_end

When I try changing the nav bar link to:

            Hi <%= link_to ('current_user.first_name.titlecase', profile_path(@profile)) %></span>

I get another syntax error as:

SyntaxError (/app/app/views/pages/_nav.html.erb:14: syntax error, unexpected ',', expecting ')'
2015-12-28T22:33:53.457021+00:00 app[web.1]: 
2015-12-28T22:33:53.457014+00:00 app[web.1]: ...ent_user.first_name.titlecase', profile_path(@profile)) );@o...
2015-12-28T22:33:53.457015+00:00 app[web.1]: /app/app/views/pages/_nav.html.erb:14: syntax error, unexpected ')', expecting keyword_end
2015-12-28T22:33:53.457015+00:00 app[web.1]: ...                               ^
2015-12-28T22:33:53.457016+00:00 app[web.1]: ...ase', profile_path(@profile)) );@output_buffer.safe_append='...
2015-12-28T22:33:53.457017+00:00 app[web.1]: ...                               ^):

ANOTHER ATTEMPT

When I try following the ideas in this post:

User profile pages with devise - Routing to show action

I change my navbar link to:

        Hi <%= link_to 'current_user.first_name.titlecase', current_user_profile_path %></span>

I then get this error message:

ActionView::Template::Error (undefined local variable or method `current_user_profile_path' for #<#<Class:0x007f4337749f60>:0x007f4337749358>):

ANOTHER ATTEMPT

When I try changing my navbar link to:

 Hi <%= link_to('current_user.first_name.titlecase', profile_path) %></span>

I then get this error message:

ActionView::Template::Error (No route matches {:action=>"show", :controller=>"profiles"} missing required keys: [:id]):

I'm going to go crazy trying to learn to code.

NEW RAKE ROUTES FOR PROFILE IS:

edit_profile GET       /profiles/:id/edit(.:format)           profiles#edit
                 profile GET       /profiles/:id(.:format)                profiles#show
                         PATCH     /profiles/:id(.:format)                profiles#update
                         PUT       /profiles/:id(.:format)                profiles#update
                         DELETE    /profiles/:id(.:format)                profiles#destroy

           user_profiles POST      /users/:user_id/profiles(.:format)     profiles#create
        new_user_profile GET       /users/:user_id/profiles/new(.:format) profiles#new

When I start it up and press new user, the logs show this get command:

Started GET "/users/sign_up"

Answer 1

I'd suggest only nesting some profile actions, like this:

resources :users do
    resources :profiles, only: [:new, :create]
end

and then using top-level routes for the other actions:

resources :profiles, only: [:show, :edit, :update, :destroy]

If you have the current_user , you can pass just that user's profile to those actions instead of both. Of course, your path names will change and you'll have to change those in your views. (Something like Hi <%= link_to(current_user.first_name.titlecase, profile_path(@profile)) %> ).

I'm curious, though, why have what appears to be a link to the user lead to the user's profile? Why not link to Users#show , using user_path(@current_user) or whatever your equivalent route is, and then just rendering the profile on the Users#show view?