NSManagedObject属性数组 [英] Array of NSManagedObject attributes

问题描述

我想为我的NSManagedObject获取一个属性数组，所以我可以使用KVO来导出它们。我可以手动创建一个数组，然后遍历它，但是，我想自动获得这个列表，然后迭代。

I'd like to get an array of the attributes for my NSManagedObject so I can use KVO to export them. I can create an array manually and then iterate through it, however, I'd like to get this list automatically, then iterate.

推荐答案

p> NSManagedObject具有与其相关联的实体。使用 NSEntityDescription 的-attributesByName和-relationshipsByName 。你会得到一个字典从每个这些方法。只要询问他们的-allKeys。

An NSManagedObject has an entity associated with it. Use NSEntityDescription's -attributesByName and -relationshipsByName. You'll get a dictionary back from each of those methods. Just ask the dicts for their -allKeys.

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