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Re: Core data "now"
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Re: Core data "now"


  • Subject: Re: Core data "now"
  • From: "I. Savant" <email@hidden>
  • Date: Mon, 6 Nov 2006 13:32:43 -0500

Matthew:

You shouldn't change the value in your view. This goes against the MVC paradigm, upon which Cocoa is built. You should instead change the model (the managed object in this case) directly. You can do this by getting your controller's current selection and changing its (the selection's) properties.

Also, if you create your own NSManagedObject subclass (and set your entity to use that class instead of NSManagedObject), you can set default values in its -awakeFromInsert method.

--
I.S.


On Nov 6, 2006, at 1:09 PM, Matthew Weinstein wrote:

Dear cocoa-xperts,
I have an app I'm working on which uses core data, and I created the interface using the drag and drop from the core data model and then tweaking. Here's the problem: I have a date field and I want it to default to "now" whenever I hit add. So I thought what I'd do is have an action in my document which is triggered by the add button so that it sends an add: to the array controller; fills in @"Now" in my date field. Now that works, in terms of filling in the current date (though not time) in the NSTextField, but it doesn't actually update the database?


How do I get my database to see that the field has changed and update appropriately?

Matthew Weinstein
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 >Core data "now" (From: Matthew Weinstein <email@hidden>)

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