In Core Data Programming Guide ▸ Using Persistent Stores ▸ Store Metadata, I read:
"Note that setting the metadata for a store does not change the information on disk until the store is actually saved." And indeed that is true. So I add my metadata, in my document-saving method, *before* invoking NSPersistentDocument's -saveDocument: or saveDocumentAs:, which does the actual saving. However, although the metadata does not get written to the disk by +[NSPersistentStoreCoordinator setMetadata:forPersistentStoreOfType:URL:error:], apparently the file modification time gets changed, because after doing so, and then invoking -saveDocument:, the dreaded warning sheet "This document's file has been changed by another application since you opened or saved it" shows its wretched face. So, I do this: • Read and remember the file's modification date (NSFileManager) • Set the desired metadata • Set the file's modification date back to the remembered value (NSFileManager) • Invoke -saveDocument: Voila - no more stupid warning sheet. Why does +[NSPersistentStoreCoordinator setMetadata:forPersistentStoreOfType:URL:error:] change the file modification time given that, per documentation, it does not modify the file? Is there a better way to do this? _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
