In my rails 3 app, I have a route which shows up as follows while calling rake routes:
topic_snippets GET /topics/:topic_id/snippets(.:format) {:action=>"index", :controller=>"snippets"}
In routes.rb
resources :topics do
member do
get 'get_topics'
end
resources :snippets, :only => [:index]
end
In my view, I am referencing this route as follows (where #name = "snippets"):
<%= send("topic_#{#name}_path")%>
When executing the previous line, I get the following routing error, not sure why:
No route matches {:controller=>"snippets"}
Update: I found another question whose responses seem to imply that the above should work: Dynamically construct RESTful route using Rails
Thanks
Anand
OK, I found it - Ryan's comment provided the clue.
I wasnt passing in #topic, which is required. If I remove #topic, it tries to just get at /snippets/ which doesn't have a route. I set #topic to a valid topic before calling this line and it works. Thanks, Ryan!
Have you tried
<%= send(eval("topic_#{#name}_path"), #topic)%>
Related
I am trying to create a landing page for an event for people to visit to see the events details. I have created the view, added a route to the event resources and made changes to the controller but something has been done incorrectly.
Here is my code:
routes.rb:
resources :events do
resources :guests
match '/landing_page', to:'events#landing_page', as: :landing_page, :via =>[:get, :post]
# resources :guestlists
end
event_controller:
def landing_page
#event = Event.find(params[:id])
end
When I open the landing page i get the following error:
"ActiveRecord::RecordNotFound (Couldn't find Event without an ID):"
In case anyone else runs into this, I wanted to document Sergio's last comment here which I believe leads to the outcome I think most people will be looking for. Nesting this inside of a member block should get you an ideal outcome:
resources :events do
member do
get :landing_page
end
end
Running rake routes should now show /events/:id/landing_page(.:format) so you can use the same method you use in your show method that just asks for params[:id].
I was wracking my brain for a while on this as rails resources seem to be dwindling on the interwebs.
In my routes file I have specified:
resources :cards do
end
Apart from the basic CRUD routes I have another route which is as follows:
get '/cards/get_schema' => 'cards#get_schema'
When I hit this endpoint, I'm actually taken to cards#show. Why does this happen?
One route generated by resources :cards is get '/cards/:id'. Can you see the issue? get_schema is recognized as id. Try this one
resources :cards do
get 'get_schema', on: :collection
end
Or just put that route on top
get '/cards/get_schema' => 'cards#get_schema'
resources :cards
Rails is treating get_schema as the id of a card. The solution is to reorder the route declarations, like so:
get '/cards/get_schema' => 'cards#get_schema'
resources :cards do
end
This way the get_schema route will be matched before the show route.
It depends on the order of routes defined.
Order 1
Rails.application.routes.draw do
# For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
resources :cards do
end
get '/cards/get_schema' => 'cards#get_schema'
end
Running routes
rake routes
Output
~/D/p/p/s/console_test> rake routes
Prefix Verb URI Pattern Controller#Action
cards GET /cards(.:format) cards#index
POST /cards(.:format) cards#create
new_card GET /cards/new(.:format) cards#new
edit_card GET /cards/:id/edit(.:format) cards#edit
card GET /cards/:id(.:format) cards#show #<========
PATCH /cards/:id(.:format) cards#update
PUT /cards/:id(.:format) cards#update
DELETE /cards/:id(.:format) cards#destroy
cards_get_schema GET /cards/get_schema(.:format) cards#get_schema #<========
Since show expects cards/:id and is above /cards/get_schema it gets routed to cards#show
Order 2
Rails.application.routes.draw do
# For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
get '/cards/get_schema' => 'cards#get_schema'
resources :cards do
end
end
Running routes
rake routes
Output
~/D/p/p/s/console_test> rake routes
Prefix Verb URI Pattern Controller#Action
cards_get_schema GET /cards/get_schema(.:format) cards#get_schema #<========
cards GET /cards(.:format) cards#index
POST /cards(.:format) cards#create
new_card GET /cards/new(.:format) cards#new
edit_card GET /cards/:id/edit(.:format) cards#edit
card GET /cards/:id(.:format) cards#show #<========
PATCH /cards/:id(.:format) cards#update
PUT /cards/:id(.:format) cards#update
DELETE /cards/:id(.:format) cards#destroy
In this scenario /cards/get_schema will be top level and won't conflict with cards#show
I'm using rails 5.0 and I get the
PostsController#index is missing a template for this request format and variant. request.formats: ["text/html"] request.variant: []
NOTE! For XHR/Ajax or API requests while trying to input my url/posts.
my routing.rb file is below:
Rails.application.routes.draw do
get 'posts/index' => 'posts#index'
resources: posts
end
my posts_controller.rb looks like below:
class PostsController < ApplicationController
def index
end
end
I want to know specifically what I'm doing wrong. I've just started to learning Ruby on Rails.
Template is missing. You need to create a file ie index.html.erb under directory /app/views/posts/index.html
GET profiles/employees- Should display all the employees
GET profiles/employees/:id should display a specfic employee
GET profiles/donors - Should display all the donors
GET profiles/donors/:id - Should display a specfic donor
routes in ruby on rails behave in the same way as href tag in rails
we use get for link and if we want toi perform any action on button then w e have to use button.
if you have any doubt let me know in detail.
for more details refer this
http://guides.rubyonrails.org/routing.html
if we write only localhost:3000/employees then bydefault our application will redirect to index page.
The issue is template missing you are missing the template file index.html.erb
I have notice that on your snapshot you named the template file as index.html.erb.txt
remove the .txt and rename to index.html.erb Then it should work
Also you don't need to declare the routes as
get 'posts/index' => 'posts#index'
Just declare the resources: posts is enough. You may check the routes using the rake routes command on your rails console
Rename the file index.html.erb.txt to index.html.erb
I'm writing what is currently a very inelegant program to generate fitness plans, and have an issue with the routing. I want buttons on my index page linking to certain bodyparts and a plan generator, and the pages themselves are working when I navigate to them directly. However, the buttons on my index view won't work, kicking out a routing error: 'No route matches [POST] "/exercises/index"'.
For example, dropping the URL for '/exercises/legs' or '/exercises/generator' into my browser loads the page as it should be, though <%= button_to "Legs", 'exercises/legs' %> (as well as redirecting to exercises_legs_path and every other option I've thought of) gives the error.
Sure this is something pretty straightforward I'm missing (very new to this), and any advice would be great!
The database currently contains columns for the :id, ':move' (i.e. press up) and ':bodypart' (i.e. legs).
Here are my routes:
Helper HTTP Verb Path Controller#Action
GET /exercises/:bodypart(.:format) exercises#bodypart
exercises_generator_path GET /exercises/generator(.:format) exercises#generator
exercises_index_path GET /exercises/index(.:format) exercises#index
root_path GET / exercises#index
exercises_path GET /exercises(.:format) exercises#index
POST /exercises(.:format) exercises#create
new_exercise_path GET /exercises/new(.:format) exercises#new
edit_exercise_path GET /exercises/:id/edit(.:format) exercises#edit
exercise_path GET /exercises/:id(.:format) exercises#show
PATCH /exercises/:id(.:format) exercises#update
PUT /exercises/:id(.:format) exercises#update
DELETE /exercises/:id(.:format) exercises#destroy
And my routes.rb file:
Rails.application.routes.draw do
get '/exercises/:bodypart', to: 'exercises#bodypart'
get '/exercises/generator', to: 'exercises#generator'
get 'exercises/index'
root :to => 'exercises#index'
resources :exercises
end
Thanks in advance, and let me know if there's anything else I've got that would help with this.
Rails.application.routes.draw do
get '/exercises/:bodypart', to: 'exercises#bodypart', as: 'exercises_bodypart'
get '/exercises/generator', to: 'exercises#generator'
get 'exercises/index'
root :to => 'exercises#index'
resources :exercises
end
instead of
Rails.application.routes.draw do
get '/exercises/:bodypart', to: 'exercises#bodypart'
get '/exercises/generator', to: 'exercises#generator'
get 'exercises/index'
root :to => 'exercises#index'
resources :exercises
end
Usage:
exercises_bodypart_path('legs')
So I'm a bit of a Rails n00b, so I'll apologize if this is really simple. When I access my server from another computer, I get this message:
No route matches [GET] "/"
And if I try to go to my subpages (Well, currently I only have one), I get something along these lines:
Unknown action
The action 'index' could not be found for AwebpageController
But here's the catch: this only happens sometimes. The rest of the time, the standard RoR homepage loads, and going to wwww.mydomain.com/awebpage serves up the page fine.
My Routes.rb looks like this:
Wobsite::Application.routes.draw do
resources :awebpage
end
And awebpage_controller.rb looks like this:
class AwebpageController < ApplicationController
end
And yes, index.html.erb for Awebpage does exist. It's all so simple that I don't understand what's going wrong. Oh, and my webserver is Thin (Not sure if that matters). Thanks in advance for any help!
You might want to add this to the top of your routes file to set the default controller and page for your site (i.e. http://www.mysite.com/):
root :to => "AwebpageController#index"
To remove the default Ruby on Rails webpage you'll also want to delete the index.html file in your /public/ directory.
Also, although not required, in your controller you're missing the function definition for index.
class AwebpageController < ApplicationController
def index
end
end
Normally you'd do application logic and serve up a view in this function; however if you do nothing RoR automatically loads the view associated with the page (index.html.erb).
If after all this you're still having a problem perhaps explicitly add index to the AwebpageController in your routes file; perhaps rails is only mapping www.mysite.com/Awebpage/ to Awebpage/index and not www.mysite.com/Awebpage/index.