Comments on: NSPredicateEditor tutorial

By: A

Thu, 15 Jul 2010 22:28:44 +0000

Good clear article. It was difficult to figure out this IB library given its extensive functionality. Thanks.
How to hook it into the Core Data filter predicate?

By: Hank

Hank — Wed, 14 Apr 2010 13:45:31 +0000

Update: I found a way to change the width of text fields. You get the row templates from the predicate editor. Then for each row template you can get the “templateViews”. Check the class of each templateView and if it is an NSTextField then you’ve got one. At that point you just modify the frame of the text field how you like and in my case I just modified the frame.size.width property.

When I did this in the PredicateEditorTest project from this website I also had to adjust the project. It seemed that since the predicate was being set in the init method of AppDelegate that my changes to the text fields weren’t happening until after the predicate editor was already created. As such I have to move the creation of the initial predicate into applicationDidFinishLaunching of AppDelegate.

By: Hank

Hank — Wed, 14 Apr 2010 09:13:18 +0000

Thanks for this and good tip about using the key… I never knew that. Question: has anyone found a way to alter the width of the text fields in the predicate editor? They’re very narrow and I see no way to change it. They don’t resize as the window is resized even though the NSPredicateEditor is set to resize in IB.

By: Vincent Driessen

Vincent Driessen — Mon, 19 Oct 2009 21:39:35 +0000

@Jacob: indeed, that one is pretty tricky. Try holding down the Alt key when you press the “+” button. It changes into a “…” button, which allows exactly that.

By: Jacob

Jacob — Wed, 14 Oct 2009 08:21:28 +0000

Nice. I have one question, though. It seems impossible to create your default predicate using the interface. i.e. starting from scratch in the editor, since the compound template (Any, All) menu is unavailable. The plus sign does not admit adding Any or All, if I’m not mistaken.

Is there a way around this? I often need nested compounded predicates, like the default you create in code.

By: Tony Brown

Tony Brown — Thu, 24 Sep 2009 15:09:18 +0000

I don’t know If I said it already but …Excellent site, keep up the good work. I read a lot of blogs on a daily basis and for the most part, people lack substance but, I just wanted to make a quick comment to say I’m glad I found your blog. Thanks, :)

A definite great read..Tony Brown

By: geeks

geeks — Mon, 17 Aug 2009 10:42:41 +0000

It is tuely and amazing tool makes your code cleaner and makes programming more fun than befor.
I’ve been using it for a while now and I like it and it workes like a charm

thanks for introfucing such a powerful tool to us