实体用户不符合密钥“ dateEndSubscription”的密钥值编码标准。 [英] The entity User is not key value coding-compliant for the key "dateEndSubscription"

问题描述

我在xcdatamodeld中有一个包含3个实体的快捷项目：Access，CustomerInfo和User。我试图在用户中单独保存dateEndSubscription。当我尝试保存时，出现以下错误：由于未捕获的异常'NSUnknownKeyException'而终止应用程序，原因：'[setValue：forUndefinedKey：]：实体User不符合键 dateEndSubscription的键值编码要求。

I have a swift project with 3 entities in my xcdatamodeld: Access, CustomerInfo and User. I am trying to save the dateEndSubscription separately in the User. When I am trying to save , I get error as : Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: the entity User is not key value coding-compliant for the key "dateEndSubscription".' Anyone please help to solve it in swift4.

推荐答案

json消息包含密钥 dateEndSubscription c $ c>，但您的用户实体中的属性命名为 dateEnd ，因此它们不匹配。

The json message contains the key dateEndSubscription but the attribute in your User entity is named dateEnd so they doesn’t match.

A在您的 saveUser 方法中解决此问题的几种方法

A few options to solve this in your saveUser method

更改 API.DateEnd 到 dateEnd ，但也许可以推断出json消息的解码。

Change API.DateEnd to dateEnd but maybe that will infer with the decoding of the json message.

不要使用API​​密钥，但使用硬编码属性名称

Don't use API key but instead hardcode attribute name

 user.setValue(dateEnd, forKey: "dateEnd")

最后直接使用User类的属性

and lastly use the property of the User class directly

 user.dateEnd = dateEnd

您还需要更改 saveCustomerInformation ，因为您正在使用 User 也在那里反对，尽管不清楚原因。

You need to change saveCustomerInformation as well since you are working with a User object there as well although it's unclear why.

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