CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3
Robert B
Robert B

Reputation: 2883

Calling Controller Method in link_to from the view

My application has deals which have orders. In my admin area I want to be able to process the orders manually.

In my access/deals view

<%= link_to "Process Orders", "Not sure what I put here?" %>

in my access/deals_controller

def process_orders
   @deals = Deal.find(params[:id]
   @orders = @deals.orders.where("state" == ?, "pending")

   @orders.each do |order|
     #order processing code here
   end
end

How should I structure my link_to method to call the process_orders method in my admin/deals controller?

I thought something like 

<%= link_to "Process Orders", access_deal_path(deal) %>

which give me the following url

 localhost:3000/access/deals/9

how do I get something like

localhost:3000/access/deals/9/process_orders

I'm also open to suggestions on moving the processing_orders method to model or helper if that is a better way of doing this.

My excerpt of my routes file.

  resources :deals do
    resources :orders
  end

  namespace "access" do
    resources :deals, :podcasts, :pages, :messages
  end

Upvotes: 6

Views: 6553

Answers (3)

Mario Uher
Mario Uher

Reputation: 12397

It would be nicer if you move the process_orders method to your OrdersController but this is your decision.

To get your code working just add this route to your routes.rb:

resources :deals do
  get :process_orders
  resources :orders
end

and call it with <%= link_to("Process Orders", deal_process_orders(deal)) %>.

Upvotes: 1

Kevin Tsoi
Kevin Tsoi

Reputation: 1807

You can do 1 of the following:

Create a custom route:

match 'access/deals/:id/process_orders' => 'access/deals#process_orders', :as => 'access_deal'

then you can use this link_to:

<%= link_to "Process Orders", access_deal_path(deal) %>

OR

Add a member route:

namespace "access" do
    resources :deals do
        member do
            get :process_orders
        end
    end
end

Your link_to will look something like this:

<%= link_to "Process Orders", process_orders_access_deal_path(deal) %>

Upvotes: 4

MrDanA
MrDanA

Reputation: 11647

If you can use a specific _path that be great, but I know I've been in situations where I wanted more explicit control.

The Ruby API here: http://api.rubyonrails.org/classes/ActionView/Helpers/UrlHelper.html#method-i-link_to

Gives this example:

link_to "Profile", :controller => "profiles", :action => "show", :id => @profile

Upvotes: 2

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