Refactor InfoWindowController#index

Gemfile.lock

@@ -147,9 +147,8 @@ GEM
     rest-client (1.7.2)
       mime-types (>= 1.16, < 3.0)
       netrc (~> 0.7)
-    rubocop (0.24.1)
-      json (>= 1.7.7, < 2)
-      parser (>= 2.2.0.pre.3, < 3.0)
+    rubocop (0.25.0)
+      parser (>= 2.2.0.pre.4, < 3.0)
       powerpack (~> 0.0.6)
       rainbow (>= 1.99.1, < 3.0)
       ruby-progressbar (~> 1.4)

app/controllers/info_window_controller.rb

@@ -1,18 +1,11 @@
 class InfoWindowController < ApplicationController
   def index
     @thing = Thing.find_by_id(params[:thing_id])
-    if @thing.adopted?
-      if user_signed_in? && current_user == @thing.user
-        render('users/thank_you')
-      else
-        render('users/profile')
-      end
+    view = if @thing.adopted?
+      user_signed_in? && current_user == @thing.user ? 'users/thank_you' : 'users/profile'
     else
-      if user_signed_in?
-        render('things/adopt')
-      else
-        render('users/sign_in')
-      end
+      user_signed_in? ? 'things/adopt' : 'users/sign_in'
     end
+    render view
   end
 end