Ruby NoMethodError - undefined method `blah_url' for BlahController - sql

Question

I am calling this js from a link:
function createNewTopLevelEntry(){
var user_id = $("#user").val();
var header = prompt("Enter the name");
$.ajax( '/users/' + user_id + '/entries', {
data: {
entry: { header: header,
user: user_id } },
type: 'POST',
cache: false,
dataType: 'json',
success: displayTopLevelEntries
});
}
It hits this controller:
def create
#entry = Entry.new(params[:entry])
respond_to do |format|
if #entry.save
format.html { redirect_to #entry, notice: 'Entry was successfully created.' }
format.json { render json: #entry, status: :created, location: #entry }
else
format.html { render action: "new" }
format.json { render json: #entry.errors, status: :unprocessable_entity }
end
end
end
This is the response on the server:
Started POST "/users/1/entries" for 127.0.0.1 at 2013-03-25 21:50:36 -0700
Processing by EntriesController#create as JSON
Parameters: {"entry"=>{"header"=>"Hi", "user"=>"1"}, "user_id"=>"1"}
(0.1ms) begin transaction
SQL (0.5ms) INSERT INTO "entries" ("completed", "created_at", "endtime", "header", "parent", "starttime", "starttimeset", "text", "totaltime", "updated_at", "user") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) [["completed", nil], ["created_at", Tue, 26 Mar 2013 04:50:36 UTC +00:00], ["endtime", nil], ["header", "Hi"], ["parent", nil], ["starttime", nil], ["starttimeset", nil], ["text", nil], ["totaltime", nil], ["updated_at", Tue, 26 Mar 2013 04:50:36 UTC +00:00], ["user", "1"]]
(2.5ms) commit transaction
Completed 500 Internal Server Error in 10ms
NoMethodError - undefined method `entry_url' for #<EntriesController:0x007fb22b9f7fd8>:
(gem) actionpack-3.2.11/lib/action_dispatch/routing/polymorphic_routes.rb:129:in `polymorphic_url'
(gem) actionpack-3.2.11/lib/action_dispatch/routing/url_for.rb:150:in `url_for'
(gem) actionpack-3.2.11/lib/action_controller/metal/rendering.rb:60:in `_process_options'
(gem) actionpack-3.2.11/lib/action_controller/metal/streaming.rb:208:in `_process_options'
(gem) actionpack-3.2.11/lib/action_controller/metal/renderers.rb:34:in `block in _handle_render_options'
What is the entry_url? Why is it looking for it? Do i need to include something in the model. Its just has attr_accessors for the vars.
class Entry < ActiveRecord::Base
attr_accessible :completed, :endtime, :header, :starttime, :starttimeset, :totaltime, :user, :text, :parent
end
Heres is my routes file:
Tasks::Application.routes.draw do
match '/users/:id/projects' => 'users#show_projects_for_user'
authenticated :user do
root :to => 'home#index'
end
root :to => "home#index"
devise_for :users
resources :users do
resources :entries
end
end
Thanks for the help.

Answer 1

The entry_url is what it's asking you to redirect to when you say redirect_to #entry
You don't have an entries resource in the routes file. You do have one nested within user, but then you need to pass as well as the entry.
redirect_to [ #user, #entry ]
just saw your comment - if it's doing this on the JSON path similarly you need to have
location: [#user, #entry]
Basically anywhere you're asking rails to build a url for an entry you need to pass the entry's user in because you have entry nested within user in the routes and not as a standalone resource routing.
Adding an edit to respond to the comment because there's no formatting in comments:
Yes, this it will work to delete the location as it will no longer call the helper to build that location in the json, but I am presuming you want that. So try this to make the location work:
format.json { render json => { :entry => #entry, :status => created, :location => [#user, #entry] }}
from your comment... if that's not working then let's try calling the url helper directly
format.json { render json => { :entry => #entry, :status => created, :location => user_entry_url(#user, #entry) }}

Answer 2

If you are using Rails3, this might case because with rails3, the url has become path
Ex:
#rails2
entry_url
#rails3
entry_path
So try entry_path instead of entry_url