i am following the routing guides (2.6) on rails 3.According to it, i combined the 2 controller under namespace “admin” but couldn’t success to make it work.Before doing so everything was working at “localhost:3000/posts”.
I just made a new directory “admin” in /app/controller/admin and then added 2 controller name “posts_controller.rb” and “gne_controller.rb” inside it.
but when i browsed to “localhost:3000/admin/posts” ,it gave error
uninitialized constant ApplicationController
please help to solve it and understand..:)
thanks
[amritpalpathakgne.wordpress.com](http://amritpalpathakgne.wordpress.com)
show us the source of one controller at least
there should be in app/controllers/admin/posts_controller.rb
class Admin::PostController < ApplicationController
end
tom
show us the source of one controller at least
ya sure.
there should be in app/controllers/admin/posts_controller.rb
it is as follow and it was working without using namespace i.e when it was in /app/controller.
it is posts_controller.rb…
class PostsController < ApplicationController
#def click
#end
def new
end
def show
@show = Post.find(params[:id])
end
def index
@post = Post.new
end
def create
@post = Post.new(params[:post])
respond_to do |format|
if @post.save
format.html{ redirect_to(@post , :notice => ‘Post was successfully created.’) }
end
end
end
end
amritpalpathakgne.wordpress.com
sure.. when you want to use namespace, having two options
1. "pseudo" namespace from routes
in routes.rb
map '/namespace/:controller/:action/:id'
and then you'll have all the controllers in /app/controllers w/o any namespace in class name
2. namespaced in source
this one follows my previous example, eg
/app/controllers/namespace/cars_controller.rb
class Namespace::CarsController < ApplicationController
end
tom
I said...
if you have posts_controller in /app/controllers/admin/posts_controller.rb
then you MUST have this namespace in your class name
class PostsController < ApplicationController <- WRONG
class Admin::PostsController < ApplicationController <- RIGHT
and in your routes.rb (for rails3) have
namespace :admin do
resources :posts
end
tom
I said…
if you have posts_controller in /app/controllers/admin/posts_controller.rb
then you MUST have this namespace in your class name
class PostsController < ApplicationController ← WRONG
ok
class Admin::PostsController < ApplicationController ← RIGHT
done…
and in your routes.rb (for rails3) have
namespace :admin do
resources :posts
end
still “localhost:3000/admin/posts” gives the error
Routing Error
uninitialized constant ApplicationController
amritpalpathakgne.wordpress.com
Chirag
June 21, 2011, 8:26am
9
Hi Amrit,
Are you by any chance migrating this project from Rails 2.x to 3.x?
If yes, you may have the application controller in old format.
Can you check and verify if you have a file app/controllers/application_controller.rb?
If you don’t have that, then you might have app/controllers/application.rb, in that case you will need to rename it to application_controller.rb
Hope this helps
i am unable to guess reason for error…
thanks
amritpalpathakgne.wordpress.com
Chirag
June 21, 2011, 11:06am
11
That’s the problem. Don’t move application_controller.rb file
It should always be under app/controllers folder not in the namespaced folder.
Move it back and your error should go away
Missing template admin/posts/index with {:handlers=>[:rhtml, :rxml, :erb, :builder, :rjs], :formats=>[:html], :locale=>[:en, :en]} in view paths “/home/amrit/check/app/views”
The index.html.erb file exist already in /app/view/posts/index.html.erb.
should i make a new directory in /app/views and move the “posts” directory inside it same as namespacing in controller??
Thank you very much for support.
amritpalpatakgne.wordpress.com
Chirag
June 21, 2011, 11:21am
13
Yes. Create a new directory “admin” under app/views and move “posts” directory into that one.
Showing /home/amrit/check/app/views/admin/posts/index.html.erb where line #2
No route matches {:controller=>"posts", :action=>"new"}
I did everything as previous before namespacing ,it was working.The file new.html.erb exist in same directory.This file looks :
<%= link_to 'New Post', new_post_path%>
<%= form_for(@post) do |f| %>
<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :title %><br />
<%= f.text_field :title %>
</div>
<div class="field">
<%= f.label :content %><br />
<%= f.text_area :content %>
</div>
<div align="center">
<div class="actions">
<%= f.submit %>
</div>
</div>
<div class="field">
<%= f.label :sign %><br />
<%= f.text_field :sign %>
</div>
<div class="field">
<%= f.label :value %><br />
<%= f.text_field :value %>
</div>
<% end %>
<%= submit_tag "Test me!", :type => 'button', :onclick => 'alert("It works!")' %>
<br>
<%= submit_tag "Click me", :type => 'button' %>
<%= button_to "Great", :action => "click"%>
<%= button_to "click me", :action => "work"%>
here if i removed 1st time just to test ,the next line gives the error:
No route matches {:controller=>"posts"}
I think we are missing something to add or else.
thanks
[amritpalpathakgne.wordpress.com](http://amritpalpathakgne.wordpress.com)
Chirag
June 21, 2011, 11:55am
15
All your routes will need to change as per the named scope
new_post_path should be changed to new_admin_post_path
form_for(@post ) should be changed to form_for [:admin, @post ]
and so on
Check rake:routes for the full list of new routes with the namescope
Last query.what should be the syntax to button’s part .It was
<%= button_to “Great”, :action => “click”%>
So now it says
No route matches {:controller=>“admin/posts”, :action=>“click”}
i tried to change it too as:
<%= button_to “Great”, :action => “admin_click”%>
But didn’t work.
amritpalpathkgne.wordpress.com
Chirag
June 21, 2011, 12:27pm
19
In which controller do you have the “click” action defined?
If it’s in the same controller, then you need to define it in your routes too.
namespace :admin do
resources :posts, :collection => {:click => :post}
end
And in the code you had posted, the click method in your controller was commented, so that may be the issue as well
In which controller do you have the “click” action defined?
If it’s in the same controller
yes it is in the same
then you need to define it in your routes too.
namespace :admin do
resources :posts, :collection => {:click => :post}
end
Did exactly
And in the code you had posted, the click method in your controller was commented, so that may be the issue as well
uncommented it.
still no effect…
amritpalpathakgne.wordpress.com
