Re: Question about predicates and list properties.
Re: Question about predicates and list properties.
- Subject: Re: Question about predicates and list properties.
- From: Graham Cox <email@hidden>
- Date: Thu, 27 May 2010 00:42:28 +1000
On 27/05/2010, at 12:35 AM, Keary Suska wrote:
> Not enough info: are you using Core Data, or a simple modeled relationship? I assume the issue is about traversing a relationship--otherwise the solution is trivial...
No, it's a simple 'to many' property in my own model, not using Core Data. If it's trivial I can't find the solution - I have tried many things hinted at by the predicates guide. I am tired having worked a 14 hour day and counting, so perhaps I just need a rest to see the wood for the trees...
I have a list of objects. Each object has a 'categories' property, which is another 'to many' property, i.e. a list. Each category has a simple 'name' property.
I desire to match a string I enter to any of the categories.name strings in the list using equals, begins with, ends with, contains. I'm setting up the predicate editor in IB, but I can't see any way to use the aggregating predicate syntax anywhere there and when I attempt it I get a runtime error (e.g. no value for key 'ANY categories').
Perhaps it's a limitation of IB that more complex predicate editor row templates are not available?
--Graham
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden