How to write match in route.rb - ruby-on-rails

In my AdminController, I have methods named as edit, update and update_admin. And in route.rb
resources :session, :only => [update]
match '/:controller(/:action(/:id))'
end
When I navigate the url '/users/edit/1' matches. From this page i want to call the action method in update_admin in AdminController. How to do this?
My edit.erb has
<%= render :partial => '/submit', :locals =
> {:button_html => f.submit('Update'), :validate_present => true}
%>

at first, to check your routes go to console and do
rake routes | grep session
there you will get list all routes of your rails application (matched to the grep)
at second i dont get your routes.rb
would you do
resources :session, :only => [update] do
match '/:controller(/:action(/:id))'
end
or
resources :session, :only => [update]
match '/:controller(/:action(/:id))'
end
these are 2 different things. i think you want the last one. but here we go, there is another problem
resources :session, :only=>[update]
this throws an error.(undefined local variable or method `update' for #)
if you want to specify actions, you need to do it as a key
resources :session, :only=>[:update]
but you also want the edit message, (edit is the form, update the action to save the changes) so you have to do
resources :users, :only=>[:edit, :update]
now check your rake routes and see voila!
edit_session GET /session/:id/edit(.:format) {:action=>"edit", :controller=>"session"}
session PUT /session/:id(.:format) {:action=>"update", :controller=>"session"}
//edit
if you want to do this in your admin_controller you should have a namespace
#i take example for a user
namespace :admin do
resources :user :only => [:edit, :update]
end
if you want now to link to it from a view the route is named
edit_admin_user_path
and in a form you need to bring the namespace also in the form_for like:
=form_for [:admin, #user] do |f|

Related

how to fill twice id from routes rails

i try to fill twice id in url, but when i send params twice id just one id fill the url id.
My route :
namespace :admin do
resources :stores
get "/:id/new_items"=> 'stores#new_items', as: :store_new_items
post "/:id/create_items"=> 'stores#create_items', as: :store_create_items
get "/:id/show_items/:id"=> 'stores#show_items', as: :store_show_items
get "/:id/items/:id/new_items_sub" => 'stores#new_items_sub', as: :store_new_items_sub
post "/:id/items/:id/create_items_sub" => 'stores#create_items_sub', as: :store_create_items_sub
get "/:id/items/:id/show_items_sub/:id" => 'stores#show_items_sub', as: :store_show_items_sub
end
my view :
<%= link_to "add new items", admin_store_new_items_sub_path(#store.id, #items.id), :class=> "btn" %>
i hope my url like this :
http://localhost:3000/admin/#{store.id}/items/#{items.id}/new_items_sub
but i get same id like this :
http://localhost:3000/admin/#{store.id}/items/#{store.id}/new_items_sub
please tell me when i'm wrong? thanks
you have to create neseted routes for that .have a look at
http://guides.rubyonrails.org/routing.html#nested-resources
for example
resources :publishers do
resources :magazines do
resources :photos
end
end
will accept routes /publishers/1/magazines/2/photos/3
Your params should be unique, so you can't pass more than one different :id params. Instead. you can do something like:
get '/:store_id/show_items/:id', as: :store_show_items
and in view:
<%= link_to 'show items', store_show_items_path(#store.id, #item.id) %>
Also, you should read more about Resources and Nested Resources in Rails, there's probably no need to complicate your life by creating each route independently.
You could refactor this to use nested routes like this (you may have to change controller method names):
namespace :admin do
resources :stores do
resources :items, :only => [:new, :create, :show] do
resources :subs, :only => [:new, :create, :show]
end
end
end
This would give you a few url helpers like this: new_store_item_sub_path(#store.id, #item.id) for the new action and store_item_sub_path(#store.id, #item.id, #sub.id) for the show action.
Run rake routes to see what helpers and routes you have access to.
Have a look here to find out more about nested routes.
Your code can be DRYed up significantly. Hopefully this works; might need some tweaking:
namespace :admin do
resources :stores do
member do
get :new_items, as: :store_new_items
post :create_items, as: :store_create_items
end
get "show_items/:id"=> 'stores#show_items', as: :store_show_items
resources :items do
get :new_items_stub => 'stores#new_items_sub', as: :store_new_items_sub
post :create_items_stub => 'stores#create_items_sub', as: :store_create_items_sub
get "show_items_sub/:id" => 'stores#show_items_sub', as: :store_show_items_sub
end
end
end
Uses Member Routes (see 2.10) & Nested Resources
Nested Resources
The crux of your issue is that you're trying to pass the :id param twice
Fortunately, Rails has a solution to this, in the form of Nested Resources. These work by taking the "parent" id and prepending a singular prefix, such as :store_id, allowing you to use the :id param for another set of methods

Abstracting rails route

I want to replace the normal /users/:id route that is created by the resources command, with a more abstract /profile route. It won't be possible to view other users profiles in my app, and therefor the current route is unnecessary specific.
I have tried to overwrite the route created by 'resources :users' with:
get '/profile', to: 'users#show'
and other variances and combinations, but can't seem to get it right. Either the controller can't find the user because of a missing id or it simply can't find the route.
Thanks for the help!
You can use this code in routes.rb file:
resources :users, :except => :show
collection do
get 'profile', :action => 'show'
end
end
It will generate url "/users/profile".
But, if u want to use only '/profile', then don't create route as collection inside users resources block.
resources :users, :except => :show
get 'profile' => "users#show", :as => :user_profile
It will redirect '/profile' to show action in users controller.
I suggest simply adding a users/me route pointing to the show action of your UsersController like so:
resources :users, only: [] do
collection do
get 'me', action: :show
end
end
You can also use the match keyword in routes.rb file.
match 'users/:id' => 'users#show', as: :user_profile, via: :get

How do I rename a resources routes?

How do I rename some of these routes...for example, below i want to use signup_path in my controllers instead of signup_sessions_path...
resources :sessions, only: [] do
collection do
post :signup, :as => :signup
post :login
delete :logout
end
end
Try not to nest the routes under resources :sessions but rather use the to: option like so:
post :signup, to: 'sessions#signup', as: :signup, on: :collection
Not too sure about your collection there but I'm sure you get the gist of it
Update
According to your comment, as of today, I don't know of any way to remove the nested route resource name from the path name of a nested resource route. In other words, whatever is nested is purposely to use the scope of the resource and therefore there are no options to revert that behaviour other than taking it out of the resource's block.

uninitialized constant error in rails 3 on newly created controller

I added a Session controller to my application for user sign-in / sign-out, using
rails g controller Session new create destroy
then add the following lines to my route file:
resources :sessions, :only => [:new, :create, :destroy]
match '/signup', :to => 'users#new'
match '/signin', :to => 'sessions#new'
match '/signout', :to => 'sessions#destroy'
when I do rake routes in the console, the routes do show up, but when I launch the app in the browser, I got this error:
uninitialized constant SessionsController
Thanks in advance!
You created a Session controller, not a Sessions controller. Since it's singular, you want a singular route:
resource :session, :only => [:new, :create, :destroy]
I was running into this today, and found I had to do three things, 1) use resource (not resources); 2) supply the controller manually, and 3) manually set the url in form_for tags using the resource (may not apply for your case)...
# routes.rb
resource :session, :only => [:new, :create, :destroy], :controller => 'session'
#.../new.html.erb
<% form_for #session, :url => session_path do |f| %>
Specifying the controller matters if, like me, your controller name, file names, etc, are all singular.
This is apparently related to a bug in rails

Rails Path Helper for Root should output "/"

In my routes file, I have a resource called products. The index action of the products resource is also my root path.
resources :products
root :to => "products#index"
When I use the helper method products_path (in a redirect or link), it returns "/products". But what I want is for it to return "/". I know it's the same page, but I want to keep my URL's consistent.
How can I fix this?
Thanks!
root :to => 'products#index', :as => :products
match '', :to => 'products#index', :as => :root # recreate named root_path, if you use it anywhere
This will need to appear below your resources :products as it does in your example above. This will override the products_path and products_url you'd get from resources. Run rake routes before and after to compare.
if you only want to change Index try excluding it first then defining it on its own like so:
resources :products, :except => [:index]
resources :products, :only => [:index], :path => '/'
root_path() should return /
I guess you could redefine the products_path to be the same as root_path (like in a helper file):
def products_path(*params)
root_path *params
end

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