How to find unmapped properties in a NHibernate mapped class?
- by haarrrgh
I just had a NHibernate related problem where I forgot to map one property of a class.
A very simplified example:
public class MyClass
{
public virtual int ID { get; set; }
public virtual string SomeText { get; set; }
public virtual int SomeNumber { get; set; }
}
...and the mapping file:
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="MyAssembly"
namespace="MyAssembly.MyNamespace">
<class name="MyClass" table="SomeTable">
<property name="ID" />
<property name="SomeText" />
</class>
</hibernate-mapping>
In this simple example, you can see the problem at once:
there is a property named "SomeNumber" in the class, but not in the mapping file.
So NHibernate will not map it and it will always be zero.
The real class had a lot more properties, so the problem was not as easy to see and it took me quite some time to figure out why SomeNumber always returned zero even though I was 100% sure that the value in the database was != zero.
So, here is my question:
Is there some simple way to find this out via NHibernate?
Like a compiler warning when a class is mapped, but some of its properties are not.
Or some query that I can run that shows me unmapped properties in mapped classes...you get the idea.
(Plus, it would be nice if I could exclude some legacy columns that I really don't want mapped.)
