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Re: Loading data in a background thread and displaying it with Bindings
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Re: Loading data in a background thread and displaying it with Bindings


  • Subject: Re: Loading data in a background thread and displaying it with Bindings
  • From: "Paulo F. Andrade" <email@hidden>
  • Date: Thu, 9 Aug 2007 00:54:33 +0100

I've tried that, and couldn't get it working.

I think the problem is that my itemsArrayController is bound to the selection.items of listArrayController. I'm using a master/detail interface.

Programatically i've set the entityName and the fetchPredicate (@"inList = %@", currentList) on the itemsArrayController followed by a fetch:, but the NSTableView isn't updated.


As an update to my previous e-mail.

I said I had it working by passing all the objectIDs of objects that where inserted and updated on the background thread to the main thread. And then issuing a refreshObject:mergeChanges: on the main thread to every one of those objects.

This is slow and I know I'm doing unnecessary work. As an attempt to speed this up, I've tried issuing that refreshObject:mergeChanges: only to "Item" objects, and it doesn't work anymore. The view isn't updated.

I am now very confused...

<joke>
Maybe I could tell my users that the fastest way to see the changes the background thread did is to restart the application :P
</joke>


Paulo F. Andrade 52439@IST
mailto: email@hidden



On 2007/08/09, at 00:02, mmalc crawford wrote:


On Aug 8, 2007, at 2:51 PM, Paulo F. Andrade wrote:

So... how can I tell my NSArrayController (the one bound to Items and the NSTableView) to forget what he has and fetch everything again? An [arrayController reload] would be great!!

fetch:?
<http://developer.apple.com/documentation/Cocoa/Reference/ ApplicationKit/Classes/NSObjectController_Class/Reference/ Reference.html#//apple_ref/occ/instm/NSObjectController/fetch:>


mmalc


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  • Follow-Ups:
    • Re: Loading data in a background thread and displaying it with Bindings
      • From: "Paulo F. Andrade" <email@hidden>
References: 
 >Loading data in a background thread and displaying it with Bindings (From: "Paulo F. Andrade" <email@hidden>)
 >Re: Loading data in a background thread and displaying it with Bindings (From: mmalc crawford <email@hidden>)

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