Hi,
I have a problem when calling session.isDirty().
I have 2 classes: Person & Children. Here is a sample XML mapping
file:
<?xml version="1.0"?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<class name="test7.Entities.Person, test7" table="persons">
<id name="Id" column="id">
<generator class="native" />
</id>
<set name="Children" cascade="all-delete-orphan" inverse="true"
lazy="true">
<key column="persons_id"/>
<one-to-many class="test7.Entities.Child, test7"/>
</set>
</class>
</hibernate-mapping>
Person contains a set of Child called Children
I add a Child with the following code:
Person p = session.Get<Person>(1);
Child c = new Child();
c.Parent = p;
p.Children.Add(c);
In my application, if the user closes the form, I want to warn him if
there is some unsaved data on the form.
To do so, I call session.isDirty(). If the user says he wants to save
the data, I call session.SaveOrUpdate(p).
But, when I call session.isDirty(), I see in my log that NHibernate
inserts the child in the DB (an INSERT query is performed), then it
returns TRUE (for session.isDirty()). How can I prevent it to perform
that query? Because, if the user doesn't want to save the unsaved
data, the child doesn't have to be inserted.
This behavior only happens if I add a Child to the Person. If I modify/
delete any Child of the Person or I modify the Person, all queries are
performed when I call session.SaveOrUpdate(p), not because of
session.isDirty().
Thanks for your help,
Anthony
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