Quickfix micropost feed and policy

app/models/user.rb

@@ -122,7 +122,7 @@ class User < ActiveRecord::Base
   end
 
   def feed
-    Micropost.where("user_id = ?", id)
+    microposts
   end
 
 end

app/policies/micropost_policy.rb

@@ -46,10 +46,10 @@ class MicropostPolicy
   end
 
   def update?
-    @user.admin? || @user == @micropost.user
+    @user.admin? || @user == @micropost.micropostable
   end
 
   def destroy?
-    @user.admin? || @user == @micropost.user
+    @user.admin? || @user == @micropost.micropostable
   end
 end

app/views/profiles/index.html.haml

@@ -18,6 +18,8 @@
           = social_link.to_icon.html_safe
       %p= profile.about
       %span #{profile.followers.count} Followers
+        
+      %span #{profile.microposts.count} Posts
       - if policy(profile).destroy?
         = link_to 'Edit', edit_profile_path(profile)
         = link_to 'Delete', profile, method: :delete, data: { confirm: 'Are you sure?' }