Question

我正在尝试从coredata中删除一个字符串，我创建了这个函数：

override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
    if (editingStyle == UITableViewCellEditingStyle.Delete) {
        self.statusArray.removeAtIndex(indexPath.row)
        self.tableView.reloadData()
        // Rimuovo da CoreData
        var appDel = UIApplication.sharedApplication().delegate as! AppDelegate
        var context : NSManagedObjectContext! = appDel.managedObjectContext!

        tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)

        let request = NSFetchRequest(entityName: "Status")
        request.returnsObjectsAsFaults = false

        let result:NSArray = context.executeFetchRequest(request, error: nil)!
        context.deleteObject(result[indexPath.row] as! Status)

        context.save(nil)

    }
}

但实际上当我尝试从tableView中删除某些东西时，这个给了我SIGABRT错误！这个功能出了什么问题？

Answer 1

请尝试以下示例进行删除。它可能会有所帮助。

var request = NSFetchRequest(entityName: "Status")
var new_sync_details =  NSEntityDescription.insertNewObjectForEntityForName("Status", inManagedObjectContext: context) as! NSManagedObject
var err: NSErrorPointer?


if var results = context.executeFetchRequest(request, error: nil) as? [Status] {
                println("\nResults count: \(results.count)")
                for param in results{
                    println("\nResults param: \(param)")
                    new_sync_details.managedObjectContext!.deleteObject(param as NSManagedObject)
                }
}

从coredata swift中删除字符串

1 个答案: