Re: InsertObject
Re: InsertObject
- Subject: Re: InsertObject
- From: Ken Anderson <email@hidden>
- Date: Wed, 30 May 2007 06:09:29 -0400
Frederic,
I'm not sure what you mean by over-complicated. Whenever you create
an EO, you need to insert it into the editing context - you should do
this immediately when the object is created.
You can then perform a save changes at any time, and it will
serialize all outstanding changes to the database.
It's easiest to think of saveChanges() as more like a committing a
set of changes, rather than 'saving' an object. You could make
thousands of changes to your EOs, then at the end, when the object
graph is complete, just call saveChanges() on the editing context.
There is no reason to call saveChanges() multiple times... in fact,
if you do, you could end up with a database that is out of sync. If
you make all your object graph changes, then save at the end, you'll
either save everything to to the database, or nothing.
Ken
On May 30, 2007, at 4:59 AM, Frederic JECKER wrote:
Moin list,
Could someone answer the following question? :
I have two objects A and B, each extending EOGenericRecord.
Object A has a field of type B.
Now, when I create a new Object A which embeds a new object B,
before performing an EditingContext.saveChanges
I must insert each object separately in my editingContext:
myContext.insertObject(B);
myContext.insertObject(A);
myContext.saveChanges();
.... which is rapidly over-complicated when saving complex object-
graphs
Now, in order to perform the saveChanges in a more elegant way, can
someone tell me if
there is a method to override, method called by
EditingContext.saveChanges, in which I could
in each EOGenericRecord do the insertObject work ?
Thanks
Fj
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| References: | |
| | >InsertObject (From: Frederic JECKER <email@hidden>) |