Wrap user confirm method with writing role

app/models/user.rb

@@ -123,6 +123,7 @@ class User < ApplicationRecord
   end
 
   def confirm
+    ActiveRecord::Base.connected_to(role: :writing) do
       new_user = !confirmed?
       self.approved = true if open_registrations?
 
@@ -132,6 +133,7 @@ class User < ApplicationRecord
         # prepare_new_user!
       end
     end
+  end
 
   def confirm!
     new_user = !confirmed?