NSFetchedResultsController and Time-Based Predicates

So, I have a better NSFetchedResultsController blog post in draft form, but after spending a week or so trying to figure out why our NSFetchedResultsController was not getting alerted when the background ManagedObjectContext merged with the foreground MOC…

I found posts on threading, and all other sorts of sophisticated problems, I worried about conflicting insertions, etc.

But it turned out that when we received new data, it was newer than the date defined in our previously created fetchRequest predicate. So:

  1. No alerts.
  2. No Data upon fetching.

Ugh.

Madness.

 
0
Kudos
 
0
Kudos

Now read this

Dipping Toe Further into Swift – Generics Edition

Work developments have prevented me from doing a lot of iOs, so as things are heating up with Swift and functional programming, my main involvement is reading. But I was reading [this post][macroPost] by Andrew Bancroft on using Swift... Continue →