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我试图用批量请求的帮助来更新swift中的单个实体。它适用于更新所有实体。是否有可能使用它的objectID更新单个实体? 以下是示例代码:单个objectID的批量请求swift
let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
let managedContext = appDelegate.managedObjectContext
let batchRequest = NSBatchUpdateRequest(entityName: "Outlays")
batchRequest.propertiesToUpdate = ["purchase": self.purchase.text!]
batchRequest.resultType = .UpdatedObjectsCountResultType
do {
let results = try managedContext.executeRequest(batchRequest) as! NSBatchUpdateResult
print(" \(results.result) results changed")
} catch {
print(error)
}
在此先感谢!