Re: Saving with Core Data
Re: Saving with Core Data
- Subject: Re: Saving with Core Data
- From: mmalcolm crawford <email@hidden>
- Date: Mon, 20 Jun 2005 13:58:33 -0700
On Jun 20, 2005, at 10:47 AM, Jeff LaMarche wrote:
In a Core Data application, I've got the Save menu item bound to
the saveAction: of my application delegate which works. I'd like to
have the menu disabled, however, until a change has been made. Is
there any way to bind the enabled binding of the menu item to the
context or model to do this, or do I have to write code to handle
this?
Assuming that you're using the default configuration for a Cocoa Core
Data Application, you can bind enabled to [App
Delegate].managedObjectContext.hasChanges
In general, if the menu item is connected to First Responder,
implement a validateMenuItem: method in your controller. For the
saveAction: selector, return the same as whatever the managed object
context returns from hasChanges.
mmalc
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