Ruby on rails AASM Change transition on button click

My question is very simple: how can I change aasm transitions on button click? What should I put in my view?

I have two buttons: Approve and Reject. My states look like this:

  aasm :column => 'state' do
    state :pending, :initial => true
    state :approved
    state :rejected

    event :approve do
      transitions :to => :approved, :from => [:pending]
    end

    event :reject do
      transitions :to => :rejected, :from => [:pending]
    end
  end

UPDATE: My params are these:

{"utf8"=>"✓", "_method"=>"put", "authenticity_token"...", "commit"=>"APP", "id"=>"65"}.

And this is how I access action from the view:

= form_for([:admin, shop], method: :put, data: { confirm: "You sure?" }) do |f|
  = f.submit "Approve", :controller => :shops, :action => :approve

My controller code:

def approve
  @shop = Shop.find(params[:id])
  @shop.approve!
end

Routes:

namespace :admin do
  get "shops/:id/approve" => "shops#approve"

As mentioned by Srikanth, you'll want to send your request to your controller, however, instead of using a form outright, I'd recommend using a button_to as follows:

<%= button_to "Approve", admin_shops_approve_path(shop.id), method: :put %>
<%= button_to "Disapprove", admin_shops_disapprove_path(shop.id), method: :put %>

This will send a request to your controller. You already seem to be doing this, but to clarify, you'll want to use the following:

#config/routes.rb
namespace :admin do
   resources :shops do
      put :approve #-> domain.com/admin/shops/:id/approve
      put :disapprove #-> domain.com/admin/shops/:id/disapprove
   end
end

#app/controllers/admin/shops_controller.rb
class Admin::ShopsController < ApplicationController
   before_action, :set_shop

   def approve
      @shop.approve!
   end

   def disapprove
      @shop.disapprove!
   end

   private

   def set_shop
      @shop = Shop.find params[:id]
   end
end

This will give you an efficient way to send the required data to your form, triggering the AASM process as a result.