I'm using Core Data and I need to detect if the database store was already created or not.
I tried using metadataForPersistentStoreOfType:URL:error: and check if its returning a valid metadata, but apparently this method returns nil if no metadata exists but also an error.
So I can't really tell if its because the store wasn't created yet, or if an error accord
Problem is, I already has a version on the app store, so I can't for example set a flag (like "store_created") on user default in the current version...
So I need a way to detect when user installing this current version, if the store was already created (meaning he already installed the previous version), or not
[[NSFileManager defaultManager] fileExistsAtPath:stringThatHoldsPathToMyPersistentStore]
この記事はインターネットから収集されたものであり、転載の際にはソースを示してください。
侵害の場合は、連絡してください[email protected]
コメントを追加