I'm trying to call a custom controller action shuffle for a resource that is nested within another resource. I can't seem to get the method call right.
routes.rb
resources :templates do
resources :items
end
match "/templates/:template_id/items/shuffle" => "items#shuffle"
I have a link in my items#index view:
<%= link_to 'Shuffle', shuffle_template_items_path(#template) %>
When I click on the link, I get the following error:
undefined method `shuffle_template_items_path' for #<#<Class:0x42577c8>:0x3e77578>
I have also tried <%= link_to 'Shuffle', template_items_shuffle_path(#template) %> and that did not work.
How do I correctly call this custom action?
You probably want this:
resources :templates do
resources :items do
get :shuffle, :on => :collection
end
end
If you want your custom action to have a name, you need to provide it:
match "/templates/:template_id/items/shuffle" => "items#shuffle", :as => :suffle_template_items
I think the best way to write shuffle is in collection as per the documentation of Rails Routes:
So it would looks like this:
resources :templates do
resources :items do
collection do
get :shuffle
end
end
end
when you try rake routes you will find shuffle_template_items GET /templates/:template_id/items/shuffle(.:format) items#shuffle.
Related
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
In my routes.rb I had this resource
resources :home_screen_buttons do
post :update_multiple, :on => :collection
end
update_multiple helper is update_multiple_home_screen_buttons
Then I decided to remove resource because i need only update_multiple method in my controller, so I changed routes.rb to
post "home_screen_buttons/update_multiple"
It create helper home_screen_buttons_update_multiple instead of update_multiple_home_screen_buttons
Why it has different routing helper name?
It makes sense that :on => :collection has different helper then :on => :member, but is there any other way then adding :as => :update_multiple_home_screen_buttons to my post method for same behavior?
This is how Rails does this. When match is used, it maps the URI to the action and creates the corresponding helper path as controller_action_path
but when it is used as collection, that becomes RESTful action for that resource and Rails gives it a logical name relating to a collection. As quoted as an example here:
resources :photos do
collection do
get 'search'
end
end
generates search_photos_path.
You could have done this:
resources :home_screen_buttons, :only => [:update_multiple] do
post :update_multiple, :on => :collection
end
Currently I have something like this:
resources :books do
collection do
get 'search'
end
end
and my controller name is also "books" and I have a action method called "search" inside it
I would like that "get search" part to also be a resource, kind of like nested resources... but I don't want to break other peoples codes that are using the current route that this generate, so need to update it in a passive way!
resources :books do
collection do
get 'search'
end
resources :searches
end
...if I'm understanding you correctly, that should be what you want. It won't break other routes, just add new ones.
Run rake routes to make sure you have all the routes you want/need.
Use shallow routes nesting like:
resources :books , :shallow => true do
resources :searches
end
Now you will get the following routes:
/books/1 => books_path(1)
/books/1/searches => books_searches_index_path(1)
/searches/2 => searches_path(2)
Similarly you can get separate routing for defined routes like:
get '(:books)/searches', :to => 'books#index'
I have a questions controller and an associated model and a number of rest routes. Here is how it's set up in routes.rb:
resources :questions
I want to add a custom route that has the format /questions/widget/ID (where ID is the id of the question for which I want to generate a widget). I want this to be processed by the "widget" action in my questions controller. I've tried a number of things such as:
resources :questions do
member do
get 'widget/:id'
end
end
But nothing is working. I'm sure I'm missing something simple. Any ideas? Thanks in advance.
You do not have to specify the id since you are inside resources. It should look like:
resources :questions do
member do
get 'widget'
end
end
You can get more information from the Rails Guide. Look at section 2.9.1.
Edit: I just noticed that you are trying to match get /questions/widget/:id. This will set up a route for get /questions/:id/widget. This is more in line with Rails convention. If you really want it the other way, you need to set up a custom match statement:
match "/questions/widget/:id" => "questions#widget"
However, I would stick with convention.
I know it is old, but looking to fix another routing problem I ended here, it is possible, to do what you are asking for, here is an example
resources :articles do
get 'by_tag/:tag' => :by_tag, on: :collection
get 'by_author/:author' => :by_author, on: :collection
resources :comments, except: :show
end
now you have /artices/by_tag/:tag . The trick was to use on:collection.
Obviously don't forget to add the by_tag action and by_author.
class ArticlesController < ApplicationController
.....
def by_tag
...
end
end
Check this route works with
melardev#local~$ rails routes
Why don't you use this routes:
resources :questions do
resources :widgets
end
it will create path like questions/:question_id/widgets/new for you to create new widget for question with specific id of question.
This is what ended up working for me:
resources :post do
get "author/:author", to: "posts#author", on: :collection, as: "author"
end
Which outputs the following route:
author_posts GET /posts/author/:author(.:format) posts#author
Then in your controller, you need to create the author action:
class PostsController < ApplicationController
def author
#roles = Post.where(author: params[:author])
render :index # to reuse the index view
end
end
Then in your view:
<%= link_to post.author, author_posts_path(post.author), data: { turbo_frame: "_top" } %>
I created a new file in app/views/students called courses.html.erb
Then I try to reference it at app/views/students/show.html.erb:
<%= link_to 'courses', courses_student_path(#student) %>
However I am getting
undefined method `courses_student_path' for #<#:0x1052d1648>
What step did I miss?
Note that you never link to views. It is always some action in some controller which in turn renders that view. In this case your action is courses in students controller and you need to create a route for it.
Assuming you already had :students resource defined in config/routes.rb:
resources :students do
get 'courses', :on => :member
end
This will give you urls like students/1/courses and route helpers courses_student_path and courses_student_url.
http://guides.rubyonrails.org/routing.html#adding-more-restful-actions