I have spent literally hours today Googling for even basic query
examples for Castle ActiveRecord, and have frustratingly come-up with
nothing. The VERY basic basics, like simple FindAll(), finding a
single record by its key, and all that, is quite simple. But it seems
once I'm a single step beyond that, I'm getting absolutely nowhere.
So with that, I have two questions:
1. Is there a good web resource that shows a range of common query
scenarios and how they're coded, since the documentation doesn't seem
to cover the subject? (And neither, it seems, is there much coverage
of ICriterion[] from the NHibernate side.)
2. In particular, how to do you use ICriterion-based queries to filter
by values in a table joined with BelongsTo? I have a domain object of
Subscriber with a BelongsTo property pointing to a SubscriberType
object. I want to FindAll( ) the subscribers of a particular
SubscriberType, but this construct doesn't work:
criterion = new ICriterion[] {
Expression.Eq("SubscriberType.Description",
"Fitness")
};
subscriberList = Subscriber.FindAll(order, criterion);
(Note that "order" is defined separately, elsewhere.)
That comes back with a runtime error of, "could not resolve property:
SubscriberType.Description of: Subscriber"
I've got to be missing something pretty simple, but all my Googling
is, as I said, returning nothing useful.
Thanks for any direction anyone can provide on this.
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