I 've done similar thing in my app where i captured data changes/updates over to a third-party vendor. The main flow is you save off the updated data on EditingContextWillSaveChanges event notification and do your DIFF on EditingContextDidSaveChanges event.
NSDictionary diffs = this.changesFromSnapshot(this.
editingContext().committedSnapshotForObject(this));
NSLog.out.appendln(" willUpdate() diffs " + diffs);
}
the log shows the attributes that were updated AFTER the saveChanges() is called.
i am getting tired but I think this is harder than I was originally thinking.
I am on a d2w edit page. I change the values of some attributes and
press the save button. it seems to me I need to do something when I
press the edit EO button. I need to create a copy of the original EO to
compare against. so that when the EO is actually saved, I can read that
dictionary of the original EO.
then in my didUpdate() method I could create the email that includes the values of the original EO and the new updated values.
--- On Sat, 7/28/12, Tim Worman <
email@hidden> wrote:
> From: Tim Worman <
email@hidden>
> Subject: Re: didUpdate?
> To: "Theodore Petrosky" <
email@hidden>
> Cc: "Paul Yu" <
email@hidden>, "
email@hidden" <
email@hidden>
> Date: Saturday, July 28, 2012, 11:49 PM
> This is in the
> API for ERXGenericRecord. Have you tried it?
> changesFromCommittedSnapshotpublic
> NSDictionary<String,Object>
> changesFromCommittedSnapshot()Description copied from
> interface: ERXEnterpriseObjectComputes
> the current set of changes that this object has from the
> currently committed snapshot.
> Specified
> by:changesFromCommittedSnapshot in
> interface ERXEnterpriseObjectReturns:a
> dictionary holding the changed values from the currently
> committed snapshot.
> TimUCLA GSE&IS
> On Jul 28, 2012, at 7:36 PM, Theodore Petrosky
> <
email@hidden>
> wrote:
> Are you thinking that in the willUpdate() method
> I should have access to the attributes before they are
> changed?
>
> or that I should do something in this method because I just
> tested it with a log statement and the attributes are
> already changed.
>
> this would have been trivial in a regular wonder app. but I
> am forcing myself to stay in D2W.
>
> --- On Sat, 7/28/12, Paul Yu <
email@hidden>
> wrote:
>
> From: Paul Yu <
email@hidden>
> Subject: Re: didUpdate?
> To: "Theodore Petrosky" <
email@hidden>
> Cc: "
email@hidden"
> <
email@hidden>
> Date: Saturday, July 28, 2012, 10:06 PM
> willUpdate()?
>
> Sent from my iPad
>
> On Jul 28, 2012, at 9:03 PM, Theodore Petrosky <
email@hidden>
> wrote:
>
> So, I got my D2W app sending email
> when I update or
> create a new object by overriding didUpdate in
> the EO.
>
> basically, my email says "This record has been
> updated"
> and here are the attributes.
>
> How can I get a copy of the original. I mean, I want
> the email to say:
>
> here is the old title: Big title.
> Here is the new title: New title.
>
> Where can I get a copy of the EO before it gets
> updated?
>
> Ted
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