Refactor to a method to DRY, even if its not 100% the best spot for it to live long term

app/controllers/authentications_controller.rb

@@ -7,16 +7,7 @@ class AuthenticationsController < ApplicationController
     auth = request.env['omniauth.auth']
     @authentication = nil
     if auth
-
-      name = ''
-      case auth['provider']
-      when 'twitter'
-        name = auth['info']['nickname']
-      when 'flickr', 'facebook'
-        name = auth['info']['name']
-      else
-        name = auth['info']['name']
-      end
+      name = Growstuff::OauthSignupAction.new.determine_name(auth)
 
       @authentication = current_member.authentications
       .create_with(

lib/actions/oauth_signup_action.rb

@@ -38,15 +38,7 @@ class Growstuff::OauthSignupAction
   # - We need to create it
   #
   def establish_authentication(auth, member)
-    name = ''
-    case auth['provider']
-    when 'twitter'
-      name = auth['info']['nickname']
-    when 'flickr', 'facebook'
-      name = auth['info']['name']
-    else
-      name = auth['info']['name']
-    end
+    name = determine_name(auth)
 
     authentication = member.authentications
       .create_with(
@@ -67,4 +59,18 @@ class Growstuff::OauthSignupAction
   def member_created?
     @member_created
   end
+
+  def determine_name(auth)
+    name = ''
+    case auth['provider']
+    when 'twitter'
+      name = auth['info']['nickname']
+    when 'flickr', 'facebook'
+      name = auth['info']['name']
+    else
+      name = auth['info']['name']
+    end
+
+    name
+  end
 end