Rails: form for different controller - ruby-on-rails

Question

I'm developing a rails app with a landingpage. On the landingpage, the user can sign up for the app. For login, there is an extra view with an extra controller.
It looks like this:
views/landinpage/index.html --> sign up form
views/login/index.html --> login form
but I only want to have one controller
controllers/login_controller --> create new user from sign up form & check login data
so I have to get a connection between the landingpage view and the login_controller.
This is my attempt:
<%= form_for #login, :url => { :controller => "login_controller", :action => "create" }, :html => {:method => :post} do |f| %>
but it throws a route error:
No route matches {:controller=>"login_controller", :action=>"create"}
I already defined login resources in routes.rb, but it seems that the problem is elsewhere?
resources :logins
any ideas?

Answer 1

try this
class LoginsController < ApplicationController
def new
...
end
def create
...
end
...
end
in your route.rb file write
match '/login/create' => 'logins#create', :as => :create_login
or
resources :logins
in your console - write - rake routes and check your routes
then
<%= form_for #login, :url => create_login_path(#login) do |f| %>

Answer 2

I think your code should look like this:
<%= form_for #login, :url => { :controller => "login", :action => "create" }, :html => {:method => :post} do |f| %>
can't test this right now, but I believe the _controller part is not required.
Update:
Another thing that I'm using a lot and that works:
<%= form_for #login, :url => create_login_path(#login), :html => {:method => :post} do |f| %>
You may have to fix the create_login_path part to match your application's routes but that's how I usually define these views.

Answer 3

Try this
class LoginsController < ApplicationController
def new
...
end
def create
...
end
...
end
in your routes.rb file
resources :logins do
collection do
post :create
end
end
and in your views
<%= form_for #login, :url => create_login_path(#login) do |f| %>>

Answer 4

you can see the html form action part, you can see!
your config/routes has
resources :posts
namespace :admin do
resources :posts
end