Rails 2.3.11
In Rails, when you generate a scaffold, it creates index, show, edit, and new views for it, as well as a host of methods in the associated controller. How do I add my own view to the model?
For my Events model, I'd like to add /events/past to display all events that have already happened. When I just add
def past
end
to events_controller and create /views/events/past.html.erb, then go to site.com/events/past, it looks for an event with the ID "past".
If I add map.match '/events/past' => 'events#past' to routes.rb, it says I must specify the controller.
If that's changed to map.match '/events/past' => 'events#past', :controller => :events, I'm back with the same "Couldn't find Event with ID=past" error.
Thanks for helping out someone who's new to Rails!
Since this is the old Rails, I believe you must use:
map.match 'events/past', :controller => "events", :action => "past"
I believe what your missing is the :on => :collection bit. Then I bet the order isn't important.
Related
So I have a pretty basic issue I guess. I'm using Ruby 1.8.7 and Rail 2.3.8 b/c the web host is pretty out of date. Anyways, I have an Event which has RSVPs associated with it. I have an administrator that I want to have access to a better view (more information_ of the RSVPs for the event.
The RSVP currently indexes like normal /events/1/rsvps which I get to using event_rsvps_path(event) and use an index.html.erb file. I made a adminindex.html.erb and put an adminindex in the rsvp controller. But now I don't know how to create a link to that adminindex.html.erb file.
The usual methods like link_to :controller=>'rsvps', :action=>'adminindex' don't work for obvious reasons to me.
The Routes file has map.resources :rsvps, :except => :update
Can someone tell me how to link the index to the adminindex file if the admin is signed in?
The problem is in your routes.rb file. Creating a resource only makes routes for the 7 RESTful actions (index, show, new, create, edit, update, destroy)
Since you have a custom action, you have to add a custom route for it. Try this:
map.resources :rsvps, :except => :update, :collection => { :adminindex => :get }
Run rake routes to see if it made the route correctly.
There's a strange behavior in rails I found recently related to routes and actions, specifically, it's on rails 2.3.5. I have a controller, let's call it Users. In the routes, I declare Users as a resources.
map.resources :users
And within the controller, I have the standard action: index, show, edit, update & destroy. Also, I added other action to fullfil certain requirements.
def generated_pdf_report
# do something
end
The problem is, when I go to page /users/generated_pdf_report, I get this on the console:
Processing UsersController#show (some timestamps) [GET]
Parameters: {"action"=>"show", "id"=>"generated_pdf_report", "controller"=>"users"}
As you can see, the server route the request to method show rather than to method generated_pdf_report. What's interesting, is that I have other controllers having similar action and is working fine.
The solution to the above problem is easy enough, make sure the added feed is above the resources:
map.feed 'users/generated_pdf_report', :controller => 'users', :action => 'generated_pdf_report'
map.resources :users
My question is: Anyone knows why rails behaves like that? The above solution is kind of sloppy, what do you think the best practices for such problem like one mentioned above.
As outlined in the Rails 2 routing guide, you can add collection routes like so:
map.resources :users, :collection => { :generated_pdf_report => :get }
When rails looks at
/users/generate_report
That is exactly the path it would use to show a user whose id was generate_report, so that is what it does, assuming you haven't told it otherwise.
A shorter alternative to what you wrote is
resources :users, :collection => {:generate_report => :get}
Which tells rails to map a GET to /users/generate_report to your generate_report action
So I've got a Users controller, and it has (amongst others) a function called details.
The idea is that a user can go to
localhost:3000/user/:user_id/details
and be able to view the details of :user_id.
For example, I have a user called "tester".
When I go to the uri: http://localhost:3000/users/tester/details
I'd want the details function to be called up, to render the details view, and to display the information for the user tester.
But instead I get an error saying that
No action responded to tester. Actions: change_password, create, current_user, details, forgot_password, index, login_required, new, redirect_to_stored, show, and update_attributes
And I understand that to basically mean that if I wanted to access details, I should really be using
http://localhost:3000/users/details
Except that that isn't really working either... >.<
That is instead bringing me to http://localhost:3000/users/details/registries
(which is the default path that I'd stipulated for anybody trying to view users/:user_id, so again, that's working the way I wanted it to)
Point is: Can anybody help and tell me how I can go about getting
users/:user_id/details to work the way I want it to and display the details of :user_id?
Thanks!
Are you using resources? If your routes look like:
map.resources :users
You could make it:
map.resources :users, :member => { :details => :get }
That would allow GET requests for the URL /users/:id/details
More info here: http://guides.rubyonrails.com/routing.html#customizing-resources
I think that your problem is with setting routes in such way, that instead of :user_id you have :login (or whatever) in url /users/tester instead of /users/34. Probably you should take a look at to_param (1st example, 2nd example, 3rd example).
If you want to have another option in routes (besides default REST routes), you can add :member => {:details => :get} if you are using map.resources (#dylanfm answer) or just map it like in #Salil answer.
In order to get routes like "users/:user_id/details" change following in routes.rb
map.users 'users/:user_id/details', :controller => 'users', :action=>'details'
I seriously cant understand why this is so hard... I have some experience with other mvc frameworks but always heard rails was the easiest to code in.... right now I cant even get to my controller methods if i want to.
I used scaffold to creat 'student' which automatically created for me the controller, model and views for basic CRUD.. but now I just want to add a method "helloworld" to my controller and when i go to
http://localhost:3000/students/helloworld
I get a
Couldn't find Student with ID=helloworld
error.
what am I missing?.. I know its got to do with routes and the REST thing but I still cant figure out then how else am I supposed to use my own methods... do I have to edit my routes.rb file everytime I create a new method?.. please help
Routes for models in Rails are divided into 2 groups. Ones that act on a single objects (think edit, update, delete) and ones that don't have a single object to act on (new, index). If you want to create your own method that doesn't take an object ID you need to add a route config for that method in your routes file. The methods are either member or collection methods. Member methods URLs look like /model/id/method_name. Collection methods look like what you want (/model/method_name). Here is an example for your students model (routes.rb)
map.resources :students, :member => {:some_member_function_example => :get },
:collection => { :helloworld => :get }
Note: You can just remove the :member => ... from the config and only have collection if you have no member methods to define.
Link /students/foo will not call the foo method of the students_controller. That's because REST mappings in Rails includes /:controller/:id route for GET. And your link matches this pattern.
In order to override that path (for methods with no parameters, like yours) use the following snippet:
map.resources :students, :collection => {:method_name => :get}
I have a standard User controller with the normal set of actions (index, show, new, edit, etc) and I'm trying to add a new action named 'profile'. I added the following code:
def profile
#user = User.find(session[:user_id])
end
I also created a new view for the action (app/views/users/profile.html.erb), but whenever I try to view that page I get an error:
ActiveRecord::RecordNotFound in UsersController#show
Couldn't find User with ID=profile
...
Apparently it's hitting the show action. I'm guessing that means I need to add something to my routes to make this work, but I don't know what. So far I just have the two default routes and the map.root line which I uncommented:
map.root :controller => "home"
map.connect ':controller/:action/:id'
map.connect ':controller/:action/:id.:format'
So really I have two questions:
What do I have to do in order to enable my new action?
Why don't the existing routes cover this situation? Other urls consisting of just the controller and action work just fine (e.g. http://localhost:3000/users/new). Why not this one? Shouldn't it just evaluate to :controller = users, :action = profile, :id = nil?
Try putting something like this in your routes.rb file:
map.user_profile '/users/:id/profile', :controller => "users", :action => 'profile', :conditions => {:method => :get}
I think possibly the reason it's doing this is because you are not matching either of the defaults, because you are not setting :id (even though it is detecting your action as the id). I don't know what your URL looks like, but I have a feeling that if you tried http://localhost:3000/users/123124124/profile, it MIGHT work, even without the new line in routes.
Are you intentionally trying to get the id from session[:user_id] instead of params[:id]? Is this supposed to be displaying a public profile?
Are you sure, that the session contains the user_id the first time you load the page?
Hard to say without seeing all the code, but my guess is there may be some strangeness because your model and controller have the same name. I'd try renaming the controller before changing anything else (remember to change the name of the views/users directory too).
See also this other stack overflow post: Rails cannot find model with same name as Ruby class
Long shot maybe.
Solution for your problem configure your routes.rb in such a way that id should be passed as the parameter .
configure in routes.rb as below
map.profile '/profile/:id',:controller=>'users',:action=>'profile'
when you want to access your profile page use it with the following URL
http://localhost:3000/profile
Make sure once you login , u handle the session and store the userid in the session variable .
Good luck !