Have you remembered to merge changes whenever a thread's MOC posts
NSManagedObjectContextDidSaveNotification? If the objects which are
seeing the stale properties haven't been faulted out or hit their
staleness interval, you will see this behavior.
Take a look at the NSManagedObject methods
Hi Kyle,
Actually that's exactly what the doctor ordered (I think).
I had missed this facet of using Core Data in across multiple threads.
So, thank you very much. I'm sure you have saved me a lot of time.
One last question comes to mind:
As the NSManagedObjectContextDidSaveNotification will
On Mon, Sep 21, 2009 at 11:43 AM, Luke Evans l...@eversosoft.com wrote:
As the NSManagedObjectContextDidSaveNotification will be posted on the main
thread, is it safe to do a -mergeChangesFromContextDidSaveNotification: on
the main thread for any given MOC?
This led to confusion a few months
Thanks again Kyle.
Great that -mergeChangesFromContextDidSaveNotification: does the Right
Thing vis-a-vis working across threads. Would be a little awkward to
keep it happy otherwise. Kudos to the Core Data folks (especially
since the more I learn about Core Data the more I realise just
I have a server app that responds to network requests, making use of a
Core Data database to serve responses.
Some requests update the database. I have chosen to allow requests to
arrive on multiple threads, and intend for these threads to use Core
Data directly.
In keeping with Core Data's doc
Thanks Ben.
Light testing suggests that I now have things working with -
mergeChanges (modulo exactly which merge policy I should be using).
Your notes provide some extra insight into some of the comments in the
docs though (e.g. when you should lock the PSC).
-- Luke
On 2009-09-21, at
