Re: Removing Object form ArrayController without managedObjectContext
Re: Removing Object form ArrayController without managedObjectContext
- Subject: Re: Removing Object form ArrayController without managedObjectContext
- From: Gustavo Pizano <email@hidden>
- Date: Tue, 30 Mar 2010 08:50:52 +0200
Keary Hello
On Mar 30, 2010, at 2:18 AM, Keary Suska wrote:
>
>> Item * newItem = [NSEntityDescription insertNewObjectForEntityForName:@"Item" inManagedObjectContext:[self managedObjectContext]];
>> ItemXInvoice * newItemXInvoice = [NSEntityDescription insertNewObjectForEntityForName:@"ItemXInvoice" inManagedObjectContext: [self managedObjectContext]];
>> [newItemXInvoice setValue:newItem forKey:@"toItem"];
>> [newItem addToInvoiceXItemsObject:newItemXInvoice]; //4
>> [_itemsArrayController addObject:newItemXInvoice];
>> if(_newInvoice == nil){
>> _newInvoice = [NSEntityDescription insertNewObjectForEntityForName:@"Invoice" inManagedObjectContext:[self managedObjectContext]];
>> }
>> [_newInvoice addToItemsXInvoiceObject:newItemXInvoice];
>>
>> So Im creating a ItemXInvoice relate it to an Item and then relate it to the Invoice relationship as you say. Unless I misunderstood your point and the NSArrayController (ItemXInvoice) the Array Content binding shall be set to the instance with keypath: _newInvoice.toItemXInvoice... I dunno its late here in this part of the work, Im just rumble around..
>>
>> Any thoughts?
>
> I would need to know what the -add* methods do to make any suggestions. Chances are, these methods are not updating the relationships properly.
The above is he add IBAction that its called when I press a + button, First I create a new Item, then a ItemXInvoice, I relate them, I have line 4 as an extra there but originally wasn't there, then I add the object to the _itemsArrayController, ( which has as entity ItemsXInvoice and MOC the application's delegate's MOC), then if the invoice its null I create the invoice and set the relation to ItemsXInvoice.
I thought this was the logical way to create-relate them.. did I miss something?
Gustavo
> Keary Suska
> Esoteritech, Inc.
> "Demystifying technology for your home or business"
>
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