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Peng Zhong

2010-Mar-03 05:40 UTC

Rails 3 and Friendship models

I''m having issues creating Friendships in Rails 3 beta.

I''m following Railscast 163 (
http://asciicasts.com/episodes/163-self-referential-association) and this is
what I have in the relevant files:

*## CONTROLLERS*

# application_controller.rb
class ApplicationController < ActionController::Base
  def current_user
    User.find(session[:user_id])
  end
end

# friendships_controller.rb
class FriendshipsController < ApplicationController
  def create
    @friendship = current_user.friendships.build(:friend_id =>
params[:friend_id])
    if @friendship.save
      flash[:notice] = ''Added friend.''
      redirect_to current_user
    else
      flash[:notice] = ''Unable to add friend.''
      redirect_to users_path
    end
  end
end

*## MODELS*

# friendship.rb
class Friendship < ActiveRecord::Base
  belongs_to :user
  belongs_to :friend, :class_name => ''User''
end

# user.rb
class User < ActiveRecord::Base
  has_many :friendships
  has_many :friends, :through => :friendships
  # rest snipped for brevity
end

*## VIEWS*

# users/index.html.haml
= link_to ''Add Friend'', friendships_path(:friend_id =>
user), :method =>
:post

# users/show.html.haml
#profile
  .section
    %h3= @following_title
    %ul
      - if @user.friendships != []
        - for friendship in @user.friendships
          %li= friendship.friend.name
      - else
        %li
          Nobody yet.

*## OTHER*

# routes.rb
SampleApp::Application.routes.draw do |map|
  resources :friendships
  resources :sessions
  resources :users do
    resources :posts
  end
end

# xxxx_create_friendships.rb
class CreateFriendships < ActiveRecord::Migration
  def self.up
    create_table :friendships do |t|
      t.integer :user_id
      t.integer :friend_id

      t.timestamps
    end
  end

  def self.down
    drop_table :friendships
  end
end


*The problem:*
When I''m on http://localhost:3000/users/ and I try to ''Add
Friend'' user_3
(which should POST with http://localhost:3000/friendships?friend_id=3), I
get the following page:

Unknown action
The action ''index'' could not be found

It''s clearly because there isn''t a
''friendships/index'' page. However, I
don''t understand why the application is even trying to reach
''friendships/index''. The code should be redirecting the
current user to
their profile page after the friendship is created.

When I manually go to the current user''s profile page, I see that no
friendships are listed--which means that my code for ''Add
Friend'' isn''t
saving the friendship to the database either.

I''m probably missing something very simple, but I''m very new
to Rails.
Thanks in advance for any help.

-- 
Peng Zhong

Web & UX Desiger
http://nylira.com

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steve ross

2010-Mar-04 23:19 UTC

head link

Re: Rails 3 and Friendship models

On Mar 2, 2010, at 9:40 PM, Peng Zhong wrote:> ## VIEWS
> 
> # users/index.html.haml
> = link_to ''Add Friend'', friendships_path(:friend_id =>
user), :method => :post
> 
Try doing

rake routes

to see what friendships_path is. Betcha it is FriendshipsController#index

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Peng Zhong

2010-Mar-05 00:27 UTC

head link

Re: Rails 3 and Friendship models

This is what I have for rake routes. It looks like friendships_path is
FriendshipsController#index (like you said), but with :method => :post it
should link to FriendshipsController#create?

It looks like GET is happening instead of POST.

GET    /friendships(.:format)
{:controller=>"friendships", :action=>"index"}
friendships POST   /friendships(.:format)
  {:controller=>"friendships", :action=>"create"}
new_friendship GET    /friendships/new(.:format)
    {:controller=>"friendships", :action=>"new"}
GET    /friendships/:id(.:format)
{:controller=>"friendships", :action=>"show"}
PUT    /friendships/:id(.:format)
{:controller=>"friendships", :action=>"update"}
friendship DELETE /friendships/:id(.:format)
{:controller=>"friendships", :action=>"destroy"}
edit_friendship GET    /friendships/:id/edit(.:format)
     {:controller=>"friendships", :action=>"edit"}
GET    /sessions(.:format)
 {:controller=>"sessions", :action=>"index"}
sessions POST   /sessions(.:format)
 {:controller=>"sessions", :action=>"create"}
new_session GET    /sessions/new(.:format)
 {:controller=>"sessions", :action=>"new"}
GET    /sessions/:id(.:format)
 {:controller=>"sessions", :action=>"show"}
PUT    /sessions/:id(.:format)
 {:controller=>"sessions", :action=>"update"}
session DELETE /sessions/:id(.:format)
 {:controller=>"sessions", :action=>"destroy"}
edit_session GET    /sessions/:id/edit(.:format)
  {:controller=>"sessions", :action=>"edit"}
GET    /users/:user_id/posts/:post_id/comments(.:format)
 {:controller=>"comments", :action=>"index"}
user_post_comments POST   /users/:user_id/posts/:post_id/comments(.:format)
         {:controller=>"comments", :action=>"create"}
new_user_post_comment GET
 /users/:user_id/posts/:post_id/comments/new(.:format)
 {:controller=>"comments", :action=>"new"}
GET    /users/:user_id/posts/:post_id/comments/:id(.:format)
 {:controller=>"comments", :action=>"show"}
PUT    /users/:user_id/posts/:post_id/comments/:id(.:format)
 {:controller=>"comments", :action=>"update"}
user_post_comment DELETE
/users/:user_id/posts/:post_id/comments/:id(.:format)
 {:controller=>"comments", :action=>"destroy"}
edit_user_post_comment GET
 /users/:user_id/posts/:post_id/comments/:id/edit(.:format)
{:controller=>"comments", :action=>"edit"}
GET    /users/:user_id/posts(.:format)
 {:controller=>"posts", :action=>"index"}
user_posts POST   /users/:user_id/posts(.:format)
 {:controller=>"posts", :action=>"create"}
new_user_post GET    /users/:user_id/posts/new(.:format)
   {:controller=>"posts", :action=>"new"}
GET    /users/:user_id/posts/:id(.:format)
 {:controller=>"posts", :action=>"show"}
PUT    /users/:user_id/posts/:id(.:format)
 {:controller=>"posts", :action=>"update"}
user_post DELETE /users/:user_id/posts/:id(.:format)
 {:controller=>"posts", :action=>"destroy"}
edit_user_post GET    /users/:user_id/posts/:id/edit(.:format)
    {:controller=>"posts", :action=>"edit"}
GET    /users(.:format)
{:controller=>"users", :action=>"index"}
users POST   /users(.:format)
{:controller=>"users", :action=>"create"}
new_user GET    /users/new(.:format)
{:controller=>"users", :action=>"new"}
GET    /users/:id(.:format)
{:controller=>"users", :action=>"show"}
PUT    /users/:id(.:format)
{:controller=>"users", :action=>"update"}
user DELETE /users/:id(.:format)
{:controller=>"users", :action=>"destroy"}
edit_user GET    /users/:id/edit(.:format)
 {:controller=>"users", :action=>"edit"}
signup        /signup
 {:controller=>"users", :action=>"new"}
login        /login
{:controller=>"sessions", :action=>"new"}
logout        /logout
 {:controller=>"sessions", :action=>"destroy"}
help        /help
 {:controller=>"pages", :action=>"help"}
about        /about
{:controller=>"pages", :action=>"about"}
contact        /contact
{:controller=>"pages", :action=>"contact"}
root        /
 {:controller=>"pages", :action=>"index"}



On Thu, Mar 4, 2010 at 3:19 PM, steve ross
<cwdinfo-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Mar 2, 2010, at 9:40 PM, Peng Zhong wrote:
>
> *## VIEWS*
>
> # users/index.html.haml
> = link_to ''Add Friend'', friendships_path(:friend_id =>
user), :method =>
> :post
>
>
> Try doing
>
> rake routes
>
> to see what friendships_path is. Betcha it is FriendshipsController#index
>
> --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Talk" group.
> To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> To unsubscribe from this group, send email to
>
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org<rubyonrails-talk%2Bunsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
> .
> For more options, visit this group at
> http://groups.google.com/group/rubyonrails-talk?hl=en.
>


-- 
Peng Zhong

Web & UX Desiger
http://nylira.com

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Peng Zhong

2010-Mar-05 08:43 UTC

head link

Re: Rails 3 and Friendship models

When I try to add user_3 as a friend using the following code:

= link_to ''Add Friend'', friendships_path(:friend_id =>
user), :method =>
:post
#=> which generates http://localhost:3000/friendships?friend_id=3

This is what happens in my server console:

Started GET "/friendships?friend_id=3" for 127.0,0,1 at 2010-03-05
00:37:45
AbstractController::ActionNotFound (the action ''index'' could
not be found):

It looks like Rails is ignoring my :method => :post parameter.


On Thu, Mar 4, 2010 at 4:27 PM, Peng Zhong
<arilynlol-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> This is what I have for rake routes. It looks like friendships_path is
> FriendshipsController#index (like you said), but with :method => :post
it
> should link to FriendshipsController#create?
>
> It looks like GET is happening instead of POST.
>
> GET    /friendships(.:format)
> {:controller=>"friendships", :action=>"index"}
> friendships POST   /friendships(.:format)
>   {:controller=>"friendships", :action=>"create"}
> new_friendship GET    /friendships/new(.:format)
>       {:controller=>"friendships",
:action=>"new"}
> GET    /friendships/:id(.:format)
> {:controller=>"friendships", :action=>"show"}
> PUT    /friendships/:id(.:format)
> {:controller=>"friendships", :action=>"update"}
> friendship DELETE /friendships/:id(.:format)
>   {:controller=>"friendships",
:action=>"destroy"}
> edit_friendship GET    /friendships/:id/edit(.:format)
>        {:controller=>"friendships",
:action=>"edit"}
> GET    /sessions(.:format)
>  {:controller=>"sessions", :action=>"index"}
> sessions POST   /sessions(.:format)
>  {:controller=>"sessions", :action=>"create"}
> new_session GET    /sessions/new(.:format)
>    {:controller=>"sessions", :action=>"new"}
> GET    /sessions/:id(.:format)
>  {:controller=>"sessions", :action=>"show"}
> PUT    /sessions/:id(.:format)
>  {:controller=>"sessions", :action=>"update"}
> session DELETE /sessions/:id(.:format)
>  {:controller=>"sessions", :action=>"destroy"}
> edit_session GET    /sessions/:id/edit(.:format)
>     {:controller=>"sessions", :action=>"edit"}
> GET    /users/:user_id/posts/:post_id/comments(.:format)
>  {:controller=>"comments", :action=>"index"}
> user_post_comments POST   /users/:user_id/posts/:post_id/comments(.:format)
>          {:controller=>"comments",
:action=>"create"}
> new_user_post_comment GET
>  /users/:user_id/posts/:post_id/comments/new(.:format)
>  {:controller=>"comments", :action=>"new"}
> GET    /users/:user_id/posts/:post_id/comments/:id(.:format)
>  {:controller=>"comments", :action=>"show"}
> PUT    /users/:user_id/posts/:post_id/comments/:id(.:format)
>  {:controller=>"comments", :action=>"update"}
> user_post_comment DELETE
> /users/:user_id/posts/:post_id/comments/:id(.:format)
>  {:controller=>"comments", :action=>"destroy"}
> edit_user_post_comment GET
>  /users/:user_id/posts/:post_id/comments/:id/edit(.:format)
> {:controller=>"comments", :action=>"edit"}
> GET    /users/:user_id/posts(.:format)
>  {:controller=>"posts", :action=>"index"}
> user_posts POST   /users/:user_id/posts(.:format)
>  {:controller=>"posts", :action=>"create"}
> new_user_post GET    /users/:user_id/posts/new(.:format)
>      {:controller=>"posts", :action=>"new"}
> GET    /users/:user_id/posts/:id(.:format)
>  {:controller=>"posts", :action=>"show"}
> PUT    /users/:user_id/posts/:id(.:format)
>  {:controller=>"posts", :action=>"update"}
> user_post DELETE /users/:user_id/posts/:id(.:format)
>  {:controller=>"posts", :action=>"destroy"}
> edit_user_post GET    /users/:user_id/posts/:id/edit(.:format)
>       {:controller=>"posts", :action=>"edit"}
> GET    /users(.:format)
> {:controller=>"users", :action=>"index"}
> users POST   /users(.:format)
> {:controller=>"users", :action=>"create"}
> new_user GET    /users/new(.:format)
> {:controller=>"users", :action=>"new"}
> GET    /users/:id(.:format)
> {:controller=>"users", :action=>"show"}
> PUT    /users/:id(.:format)
> {:controller=>"users", :action=>"update"}
> user DELETE /users/:id(.:format)
> {:controller=>"users", :action=>"destroy"}
> edit_user GET    /users/:id/edit(.:format)
>  {:controller=>"users", :action=>"edit"}
> signup        /signup
>  {:controller=>"users", :action=>"new"}
> login        /login
> {:controller=>"sessions", :action=>"new"}
> logout        /logout
>  {:controller=>"sessions", :action=>"destroy"}
> help        /help
>  {:controller=>"pages", :action=>"help"}
> about        /about
> {:controller=>"pages", :action=>"about"}
> contact        /contact
> {:controller=>"pages", :action=>"contact"}
> root        /
>  {:controller=>"pages", :action=>"index"}
>
>
>
> On Thu, Mar 4, 2010 at 3:19 PM, steve ross
<cwdinfo-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>> On Mar 2, 2010, at 9:40 PM, Peng Zhong wrote:
>>
>>  *## VIEWS*
>>
>> # users/index.html.haml
>> = link_to ''Add Friend'', friendships_path(:friend_id
=> user), :method =>
>> :post
>>
>>
>> Try doing
>>
>> rake routes
>>
>> to see what friendships_path is. Betcha it is
FriendshipsController#index
>>
>> --
>> You received this message because you are subscribed to the Google
Groups
>> "Ruby on Rails: Talk" group.
>> To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> To unsubscribe from this group, send email to
>>
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org<rubyonrails-talk%2Bunsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
>> .
>> For more options, visit this group at
>> http://groups.google.com/group/rubyonrails-talk?hl=en.
>>
>
>
>
> --
> Peng Zhong
>
> Web & UX Desiger
> http://nylira.com
>


-- 
Peng Zhong

Web & UX Desiger
http://nylira.com

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Rakoth

2010-Mar-05 10:15 UTC

head link

Re: Rails 3 and Friendship models

There is a bug in prototype.js, therefore method handler dont work
correctly in rails.js
Try to install latest prototype from repository or use jquery.

https://rails.lighthouseapp.com/projects/8994/tickets/4013-link_to-with-method-doesnt-work

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Peng Zhong

2010-Mar-05 13:38 UTC

head link

Re: Re: Rails 3 and Friendship models

Rakoth, awesome detective work. Friend-adding seems to be working now.

On Fri, Mar 5, 2010 at 2:15 AM, Rakoth
<rakoth3d-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> There is a bug in prototype.js, therefore method handler dont work
> correctly in rails.js
> Try to install latest prototype from repository or use jquery.
>
>
>
https://rails.lighthouseapp.com/projects/8994/tickets/4013-link_to-with-method-doesnt-work
>
> --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Talk" group.
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> .
> For more options, visit this group at
> http://groups.google.com/group/rubyonrails-talk?hl=en.
>
>

-- 
Peng Zhong

Web & UX Desiger
http://nylira.com

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Rails - Mar 2010 - Rails 3 and Friendship models

Rails 3 and Friendship models

Re: Rails 3 and Friendship models

Re: Rails 3 and Friendship models

Re: Rails 3 and Friendship models

Re: Rails 3 and Friendship models

Re: Re: Rails 3 and Friendship models