David, did you figure this out? I've just hit exactly the same issue... On Dec 16 2010, 3:59 pm, "David R. Longnecker" <[email protected]> wrote: > I figured I'd toss this out here to see if anyone else has come across it. > I don't think it's a FNH issue at this point, but maybe I'm simply clueless > (or more so than normal) and had a bit of coding by coincidence on the > composite keys. > > In 2.1.2, I have a few legacy Oracle mappings like: > > CompositeId() > .KeyProperty(x => x.Id, "COURSE_ID") > .KeyProperty(x => x.TeacherId, "TEACHER_ID") > .KeyProperty(x => x.StudentId, "PUPIL_NUMBER") > .KeyProperty(x => x.SchoolId, "SHORT_NAME"); > > Generated HBM (cleaned for a bit of brevity): > > <composite-id mapped="false" unsaved-value="undefined"> > <key-property name="Id" type="System.Nullable`1[[System.Int32]]"> > <column name="COURSE_CODE" /> > </key-property> > <key-property name="TeacherId" type="System.Int32"> > <column name="TEACHER_ID" /> > </key-property> > <key-property name="StudentId" type="System.Int32"> > <column name="PUPIL_NUMBER" /> > </key-property> > <key-property name="SchoolId" type="System.Int32"> > <column name="SHORT_NAME" /> > </key-property> > </composite-id> > > That worked just fine in the past--for the past couple of years. In some > cases, COURSE_ID would be empty (null coming from Oracle), but the object > would just instanciate with those properties being null (Id is an int?). > > After bumping up to NH3, the object won't return (even though the generated > SQL returns a valid row) unless all four key properties have values (e.g. > elementary-level pupils are in classes without a course_code, so that field > is null). > > After hunting around the NH HBMs, it seems a composite-id's key-property > doesn't have a nullable attribute and, from what I'm gathering, it should > have never worked. > > Has anyone else ran across this yet? I'm wondering if it was working by > coincidence before... and was fixed in 3.0. > > Thanks! :) > > -dl
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