correct facebook logic

lib/auth/authenticator.rb

@@ -14,10 +14,6 @@ class Auth::Authenticator
     # not required
   end
 
-  def lookup_user(user_info, email)
-    user_info.try(:user) || User.where(email: email).first
-  end
-
   # hook used for registering omniauth middleware,
   #  without this we can not authenticate
   def register_middleware(omniauth)

lib/auth/facebook_authenticator.rb

@@ -17,8 +17,9 @@ class Auth::FacebookAuthenticator < Auth::Authenticator
     result.extra_data = facebook_hash
 
     user_info = FacebookUserInfo.where(facebook_user_id: facebook_hash[:facebook_user_id]).first
+    result.user = user_info.try(:user)
 
-    if !user_info && result.user = lookup_user(user_info, email)
+    if !result.user && result.user = User.where(email: Email.downcase(email)).first
       FacebookUserInfo.create({user_id: result.user.id}.merge(facebook_hash))
     end