func (s *postgresStore) DeleteExpense(e *models.Expense) error {
r, err := s.deleteExpenseStmt.Exec(e)
// Delete expense deletes all associated assignments due to CASCADE
if err != nil {
return errors.Annotatef(err, "Could not delete expense with ID=%d", e.ID)
}
n, _ := r.RowsAffected()
if n == 0 {
return errors.New("Expense does not exist")
}
e.ID = 0
return nil
}
