null case handled

HOdlcoin · Jun 20, 2016 · ad153f4 · ad153f4
1 parent 0116b73
commit ad153f4
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
@@ -10,8 +10,10 @@ def update_bitcoin_balance
 
     if BitcoinAddress.where('updated_at > ?',10.seconds.ago).empty? # don't DOS blockchain.info
       bitcoin_address = BitcoinAddress.unscoped.order("updated_at ASC").first
-      if bitcoin_address.updated_at < 10.minutes.ago # no need to do it too often
-        bitcoin_address.update_balance
+      if bitcoin_address
+        if bitcoin_address.updated_at < 10.minutes.ago # no need to do it too often
+          bitcoin_address.update_balance
+        end
       end
     end