fix missing update balance on 1 time installment

Author: mtayllan

app/controllers/transactions_controller.rb

@@ -22,6 +22,7 @@ def create
 
     if @transaction.valid?
       Transaction.create_with_installments(@transaction, installments)
+      @transaction.account.update_balance
 
       redirect_to account_url(@transaction.account), notice: "Transaction was successfully created."
     else

app/models/transaction/installmentable.rb

@@ -42,8 +42,6 @@ def create_multiple_installments(original_transaction, installments_count)
         end
       end
 
-      # Return the first transaction
-      transactions.first.account.update_balance
       transactions.first
     end