public async Task <List <Expense> > UpdateExpensesWhen(ExpenseRecipientCategoryChanged notification)
{
if (!notification.NewExpenseCategoryId.HasValue)
{
return(new List <Expense>());
}
var expenses = await _expenseRepository.FindByExpenseRecipientAndMonthGreaterThen(notification.ExpenseRecipientId, notification.ExpenseMonth);
foreach (var expense in expenses)
{
//todo: create justThisOnce flag and exclude those expenses
expense.SetExpenseCategory(notification.NewExpenseCategoryId);
}
return(expenses);
}