migrate.swift

 func migrate(noteManager:NoteManager) {
        
        let coreDataNotes =  GNNote.MR_findAll() ?? []
            
        for case let note as GNNote in coreDataNotes {

            if let bundleID = note.appBundleID, docPath = note.documentPath, content = note.content where !content.string.isEmpty {

                noteManager.createNote(bundleID, docID: docPath, content: content)
            }
        }
    }