I'm having a consistency problem using link_to_remote in rails.
I have 2 use cases of link_to_remote, and they generate different ajax. I can't figure out why, and it is driving me crazy.
Here is use case one...
<%= link_to_remote "section-", :update => "sections", :url => {:action => :destroy, :controller => "sections", :id => #section.id } %>
This generates the appropriate ajax (as below) and works as I expect. Note that it picks up the :action param from the call and inserts it correctly in the ajax.
section-
I also have another instance where I use link_to_remote, but it generates incorrect ajax. The use case is nearly identical, except the controller is different. Either way, I wouldn't expect that to result in different ajax.
The call...
<%= link_to_remote "question-", :update =>"questions-1", :url => {:action => :destroy, :controller => "questions", :id => #question.id} %>
The resulting ajax...
question-
The obvious difference here is in the second arg to Ajax.Updater. The :action param is missing from that path. Why? This results in broken code for me, but I can't understand why this is happening. The link_to_remote calls are nearly identical.
Please point me in the right direction. Thanks.
Below is my routes.rb file...
ActionController::Routing::Routes.draw do |map|
map.resources :questions, :has_one => :section, :collection => { :sort => :post }
map.resources :sections, :has_many => :questions, :has_one => :form, :collection => { :sort => :post }
map.resources :forms, :has_many => :sections
# You can have the root of your site routed with map.root -- just remember to delete public/index.html.
map.root :controller => "forms"
map.connect ':controller/:action/:id'
map.connect ':controller/:action/:id.:format'
end
What do you get if you copy this into your view?
<%= url_for :action => :destroy, :controller => :questions, :id => #question.id %>
I suspect the problem's not really with link_to_remote, but with routing. Once url_for is returning the URL you expect, then try link_to_remote again.
Simply adding a :method => :delete to your link_to_remote call may be the simplest fix for you:
<%= link_to_remote "question-", :update =>"questions-1", :url => {:action => :destroy, :controller => "questions", :id => #question.id}, :method => :delete %>
This should force the call to /questions/:id to use the HTTP DELETE method. If you want the above call to generate the url /questions/destroy/:id instead I believe you would need a manual change to your routes, as the default map.resources doesn't seem to be achieving that result.
Related
I'm trying to pass some values through a link and I want them to be invisible. These are the options I've tried:
<%= link_to 'Add comment', :controller => :comments, :action => :new, :idea_id => #idea.id, :user_id => #idea.user.id, :method => :post %>
<%= link_to 'Add comment',{ :controller => :comments, :action => :new, :idea_id => #idea.id, :user_id => #idea.user.id}, :method => :post %>
<%= link_to 'Add comment', :controller => :comments, :action => :new, :idea_id => #idea.id, :user_id => #idea.user.id, %>
<%= link_to 'Add comment', new_comment_path, :idea_id => #idea.id, :user_id => #idea.user.id, :method => :post %>
First option - treats method as a parameter:
http://localhost:2000/comments/new?idea_id=1&method=post&user_id=1
Second option - goes like this: http://localhost:2000/comments/new?idea_id=1&user_id=1
and also causes routing error: "Routing Error No route matches "/comments/new"
Third option - loads the form, but of course is like: http://localhost:2000/comments/new?idea_id=1&user_id=1
Fourth option - looks good (http://localhost:2000/comments/new) but the same routing error like the second one.
What am I doing wrong?
Thanks in advance.
PS
I was asked to give my routes, so here they are:
resources :rights
resources :comments
resources :ideas
resources :users
resources :sessions, :only => [:new, :create, :destroy]
root :to => 'main#home'
#match '/comments/new' => "comments#new" # this doesn't help
match '/home', :to => 'main#home'
match '/contact', :to => 'main#contact'
match '/signin', :to => 'sessions#new'
match '/signout', :to => 'sessions#destroy'
match '/signup', :to => 'users#new'
If you have RESTful routes
<%= link_to 'Add comment', new_comment_path,
:idea_id => #idea.id, :user_id => #idea.user.id, :method => :post %>
should be
<%= link_to 'Add comment', comments_path,
:idea_id => #idea.id, :user_id => #idea.user.id, :method => :post %>
As others have said, it sounds like you have a problem in your routes file. Either check if you have the resource :comments defined or post your routes file here and we'll help you out. It's possible that it's not working because you are trying to POST...
If you want 'invisible' variables (I assume you mean that you do not want the variables to appear in the URL), you'll have to POST to the page rather than just link to it. In this case, your second example is the best bet. It goes against convention to POST to /new so that could be what is causing the 'no routes' error if you're using resource :comments
Give this a try in your routes.rb:
match '/comments/new' => "comments#new"
Give that a try, it should load the correct page and give you access to the variables you passed through to it through params.
Please note, that this goes wildly against convention. Is there a reason why you don't want those variables to appear in the URL? It's likely there's a better way of doing what you're thinking and if you explain we can advise you as best as we can.
Have you properly defined the routes?
Can you show how they are?
You should have something like this for that to work: resource :comments
Also, in general /new works with a GET, and a POST is sent when creating...
The method is part of html_options, you need to separate the two hashes like so:
<%= link_to 'Add comment', {:controller => :comments, :action => :new, :idea_id => #idea.id, :user_id => #idea.user.id}, :method => :post %>
I'm trying to improve i18n on my rails project. Navigation is working ok I already but I have a bug with the forms.
config/routes.rb
map.namespace :admin, :path_prefix => '/:locale/admin' do |admin|
admin.resources :titles
end
map.connect ':locale/:controller/:action/:id'
map.connect ':locale/:controller/:action/:id.:format'
app/views/admin/titles/_form.html.haml
- form_for([:admin, title], :url => {:id => title}) do |f|
Form loads the right record, I can see the correct info but when I save (post action) it raises this error
ActiveRecord::RecordNotFound in Admin/titlesController#1
{"commit"=>"Submit",
"title"=>{"price"=>"69.95",
"title"=>"Java How to Program",
"isbn"=>"0130125075",
"available"=>"0",
"copyright"=>"2000",
"author_id"=>"1",
"edition"=>"3",
"publisher_id"=>"1"},
"_method"=>"put",
"authenticity_token"=>"PmuWctSaS2JXYIG8EdjS9Y7VOK48sThiOTSn+4+gHLY=",
"id"=>"edit",
"locale"=>"en"}
What I'm doing wrong?
Maybe if you give a most specific info about url for your form_for helper
- form_for([:admin, title], :url => url_for(:controller => 'admin/titles', :action => :update, :locale => params[:locale], :id => title)) do |f|
i cannot seem to get observe_form to call a particular action
i have a route defined
map.resources :charges, :collection => {:charge_total => :get}
my controller
class ChargesController < ApplicationController
def charge_total
return 'foo'
end
end
my view: i have tried both...
observe_form form_id, :update => :charge_total, :url => :charge_total_charges
and
observe_form form_id, :update => :charge_total, :url => {:controller => :charges, :action => :charge_total}
when the form updates, i get an unknown action error
No action responded to update. Actions: charge_total, create
it sees that there is an action charge_total, however it is trying to respond to update? im not sure what is going on. any thoughts?
bahh!
put, not get...
map.resources :charges, :collection => {:charge_total => :put}
Hey! I am trying to set up routes in a Rails application so that, depending on the type of parameter passed, Rails sends the request to a different action.
I have courses which have an attribute state which is a string with a two letter state abbreviation. When a user visits /courses/1, I want Rails to display the show action in the courses controller (and pass the parameter as :id). When a user visits /courses/CO though, I want Rails to display the index action and pass the parameter as :state.
So /courses/1 would be equivalent to
:controller => 'courses', :action => 'show', :id => '1'
And /courses/CO would be equivalent to
:controller => 'courses', :action => 'index', :state => 'CO'
I have tried this:
map.resources :courses, :except => { :index, :show }
map.connect 'courses/:state', :controller => 'courses', :action => 'index', :state => /[A-Z]{2}/
map.connect 'courses/:id', :controller => 'courses', :action => 'show', :id => /[0-9]+/
But it breaks (the rails server wont even start). I don't usually do things like this with routes, so I am outside of my know-how. Thanks!
Edit: Fixed a typo, thanks JC.
Current solution looks like this:
map.resources :courses, :except => [ :index, :show ]
map.courses '/courses', :controller => 'courses', :action => 'index', :state => 'AL', :method => :get
map.courses '/courses/:state', :controller => 'courses', :action => 'index', :requirements => { :state => /[A-Z]{2}/ }, :method => :get
map.course '/courses/:id', :controller => 'courses', :action => 'show', :requirements => { :id => /[0-9]+/ }, :method => :get
This works, but you will need to go edit all your links to the index to say things like courses_path('AA') and you won't be able to use some of the nice helpers, like form_for, which assume you are following the convention that #create is simply #index with a POST request. (Get comfortable with form_tag)
ActionController::Routing::Routes.draw do |map|
map.resources :courses, :except => [ :index, :show ]
map.courses '/courses/:state', :controller => 'courses', :action => 'index', :requirements => { :state => /[A-Z]{2}/ } , :method => :get
map.course '/courses/:id', :controller => 'courses', :action => 'show', :requirements => { :id => /[0-9]+/ } , :method => :get
end
It will keep your routes named the same, though.
(by the way, your /co does not match your regex, which requires upper case chars)
Fun aside: Do we really need the abstraction of a router? http://blog.peepcode.com/tutorials/2010/rethinking-rails-3-routes
I'm afraid this won't work since the structure that maps paths to controllers and actions is setup on start of the rails application, parameter handling happens at request time.
What you could do is to match the :id-parameter in the show-action of the CoursesController against a list of valid states and then either redirect or render a different action.
Hope this helps.
I'm trying to get this link:
<%= link_to('Edit', :action => 'manage', :id => user) %>
even tried explicitly <%= link_to('Edit', {:controller => 'users', :action => 'manage', :id => user}, :method => :get) %>
to show the link in HTML as
'/users/manage/1' or '/users/1/manage'
but it shows up as
'/users/manage?id=1'
I can see in my routes:
manage_users GET /users/manage(.:format) {:action=>"manage", :controller=>"users"}
...
edit_user GET /users/:id/edit(.:format) {:action=>"edit", :controller=>"users"}
so I added a map.connect, but it was added to users
users GET /users/manage/:id(.:format) {:action=>"manage", :controller=>"users"}
but without any success. The link is still '/users/manage?id=1'
This doesn't work anymore than the above.
GET /users/:id/manage(.:format) {:action=>"manage", :controller=>"users"}
Now, when I put the :action in link_to, to 'edit' i.e.
<%= link_to('Edit', :action => 'edit', :id => user) %>
The routes.rb edit_user GET /users/:id/edit/(.:format) works, with a link showing up of
'/users/1/edit'
How do I get my link_to to show the same link when it is 'manage' instead of 'edit', i.e. showing a link of 'users/1/manage' instead of '/users/manage?id=1'??? Is it because my above map.connect is being added to users, when it should be added to 'manage_users'?
Thank for the help. I'll be trying to figure it out.
Peace.
BTW, /users/manage?id=1 works, I just want the proper rewrite link to click on.
EDIT routes.rb
map.resources :users, :collection => {:manage => :get}
#map.manage_user '/users/:id/manage', :controller => :users, :action => :manage
#map.resources :users, :member => { :manage => :get }
#map.connect 'users/manage/:id(.:format)', :controller => 'users', :action => 'manage', :conditions => { :method => :get }
map.resources :categories
map.resources :posts
map.connect ':controller/:action/:id'
map.connect ':controller/:action/:id.:format'
so I added a map.connect, but it was added to users
I suspect you added map.connect after other definitions, which would give it lowest priority. Try putting it in the beginning of routes.rb file.
You can also use named routes to avoid confusion:
map.manage_user '/users/:id/manage', :controller => :users, :action => :manage
and then refer it as
link_to 'Manage', manage_user_path(:id => user)
edit
If that doesn't work, please show your routes.rb file.
You should change collection to member in your routes.rb when defining map.resources :users. Then you'll get nice /users/1/manage link.
Also, when creating a link try this:
<%= link_to 'Manage', manage_user_path(user) %>