CBLModel isNew

[Martin Palatnik]

Hi, 

I'm trying to check is a CBLModel is new (never being saved). However isNew is always false. 

When I checked the code it makes sense because I'm passing to it a non null document. However that document is new as it was just created. Is this a bug or am I using the API in the wrong way? I just want to check if a model (or it's underliying doc) has never being saved. 

Below the CBLModel code doing that:

- (instancetype) initWithDocument: (CBLDocument*)document

{

    self = [super init];

    if (self) {

        if (document) {

            LogTo(CBLModel, @"%@ initWithDocument: %@ @%p", self.class, document, document);

            self.document = document;

            [self didLoadFromDocument];

        } else {

            _isNew = true;

            LogTo(CBLModel, @"%@ init", self);

        }

    }

    return self;

}

Thanks,

Martin

[Jens Alfke]

On Sep 30, 2014, at 8:25 AM, Martin Palatnik <mar...@gmail.com> wrote:

I'm trying to check is a CBLModel is new (never being saved). However isNew is always false. 

When I checked the code it makes sense because I'm passing to it a non null document. However that document is new as it was just created.

.isNew will return YES if the model was created by -initWithNewDocumentInDatabase:, but not if it was created with +modelForDocument:, even if the document has no revisions. That's arguably a bug.

A reliable test that will do what you want is

model.document.currentRevision != nil

—Jens

[gwis...@kpd-i.com]

On Tuesday, September 30, 2014 at 1:42:52 PM UTC-4, Jens Alfke wrote:

.isNew will return YES if the model was created by -initWithNewDocumentInDatabase:, but not if it was created with +modelForDocument:, even if the document has no revisions. That's arguably a bug.

Incidentally, I'm also seeing .isNew returning false when the model was just created with initWithNewDocumentinDatabase, which surprises me. The currentRevision is nil, though, so I can go that route too.