“NSPersistentStore”类型的值永远不能为零，不允许进行比较

Question

let managedModel:NSManagedObjectModel = NSManagedObjectModel.mergedModelFromBundles(nil)!


        var storeCoordinator:NSPersistentStoreCoordinator = NSPersistentStoreCoordinator(managedObjectModel: managedModel)

        if storeCoordinator.addPersistentStoreWithType(NSSQLiteStoreType, configuration: nil, URL: url, options: nil) != nil{
            if error != nil{
                print(error!.localizedDescription)
                abort()
            }
        }

我如何用最新的swift2语法修复它？
谢谢

  

'NSPersistentStore'类型的值永远不能为零，比较不是   允许
  呼叫可以抛出，但它没有标记为“尝试”并且未处理错误

Answer 1

这就是我用Swift 2处理它的方式：

let managedModel:NSManagedObjectModel = NSManagedObjectModel.mergedModelFromBundles(nil)!
var storeCoordinator:NSPersistentStoreCoordinator = NSPersistentStoreCoordinator(managedObjectModel: managedModel)

do {
    try storeCoordinator.addPersistentStoreWithType(NSSQLiteStoreType, configuration: nil, URL: url, options: nil)
} catch let error as NSError {
    print(error!.localizedDescription)
    abort()
}