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Asked: 2026-05-10T13:52:05+00:00

I have an NHibernate session. In this session, I am performing exactly 1 operation,

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I have an NHibernate session. In this session, I am performing exactly 1 operation, which is to run this code to get a list:

public IList<Customer> GetCustomerByFirstName(string customerFirstName) { return _session.CreateCriteria(typeof(Customer))     .Add(new NHibernate.Expression.EqExpression('FirstName', customerFirstName))     .List<Customer>(); }

I am calling Session.Flush() at the end of the HttpRequest, and I get a HibernateAdoException. NHibernate is passing an update statement to the db, and causing a foreign key violation. If I don’t run the flush, the request completes with no problem. The issue here is that I need the flush in place in case there is a change that occurs within other sessions, since this code is reused in other areas. Is there another configuration setting I might be missing?

Here’s the code from the exception:

[SQL: UPDATE CUSTOMER SET first_name = ?, last_name = ?, strategy_code_1 = ?, strategy_code_2 = ?, strategy_code_3 = ?, dts_import = ?, account_cycle_code = ?, bucket = ?, collector_code = ?, days_delinquent_count = ?, external_status_code = ?, principal_balance_amount = ?, total_min_pay_due = ?, current_balance = ?, amount_delinquent = ?, current_min_pay_due = ?, bucket_1 = ?, bucket_2 = ?, bucket_3 = ?, bucket_4 = ?, bucket_5 = ?, bucket_6 = ?, bucket_7 = ? WHERE customer_account_id = ?]

No parameters are showing as being passed.

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1 Answer

  1. I have seen this once before when one of my models was not mapped correctly (wasn’t using nullable types correctly). May you please paste your model and mapping?

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