Re: Tracking Fields and EOF
Re: Tracking Fields and EOF
- Subject: Re: Tracking Fields and EOF
- From: Alan Ward <email@hidden>
- Date: Mon, 13 Jun 2005 09:18:20 -0700
On Jun 13, 2005, at 9:01 AM, Ricardo Cortes wrote:
I'm already using some parts of the Wonder frameworks so I'm going
to go
with Alan's suggestion of using the ERCStampedEnterpriseObject
class as
I just glanced at the code and it overrides willInsert(), willDelete()
and willUpdate() accordingly and provides the created/lastModified
fields. I appreciate all the other suggestions.
By the way, isn't modification of EOs in the validateFor() methods a
cardinal sin in the EOF world?
Not sure if it's a cardinal sin... but I certainly wouldn't do it!
Those hooks are
provided for you to be able to inspect the object and decide whether
or not
should be inserted/saved. They are not intended as a place to start
monkeying
around with it's state.
Alan
On Mon, 2005-06-13 at 16:33 +0200, Max Ribuoli wrote:
It's not a good idea to use awakeFromInsertion because it's called
everytime you insert an object into an editingContext.
I suggest you to use validateForSave and validateForInsert:
public void validateForInsert() throws
NSValidation.ValidationException {
setCreationDate(new NSTimestamp());
super. validateForInsert();
}
public void validateForSave() throws
NSValidation.ValidationException {
setModificationDate(new NSTimestamp());
super. validateForSave();
}
Max Ribuoli
On Jun 13, 2005, at 16:13, WebObjects Lover wrote:
Hi there,
I need to add tracking fields to my database that
track when a record was last updated and when a record
was added. I believe I can use the awakeFromInsertion
method on EOCustomObject (in the superclass for all my
EOs) to set the time the record was added but I'm a
little confused how I set the date last modified time
automatically? Or, is this something I need to set on
the EO before I save changes? Thanks...
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