Realm，避免存储一些属性 [英] Realm, avoid to store some property

问题描述

我需要在我的用户模型中实现一个协议，它需要有一些特殊的属性.但我想避免将它们存储/持久化在 Realm 数据库中.

I need to implement a protocol in my User model, which need to have some special properties. But I'd like to avoid them to be stored/persisted in Realm database.

我在文档中没有看到是否有关键字.是否有避免保存某些属性的技巧?

I didn't see in the documentation if there was a keyword for this. Did there is a trick to avoid saving some properties ?

public final class User: Object, Mappable, AvatarImageViewDataSource {

dynamic var id: Int = 0
dynamic var desc: String? = nil
dynamic var email: String? = nil
dynamic var firstName: String? = nil
dynamic var lastName: String? = nil

...

public var myPropertyIDontWantToSave: String? = nil // I don't want this to be stored

推荐答案

查看 RealmSwift 文档关于 忽略属性.该部分包含一些示例代码:

Check out the RealmSwift docs about Ignoring properties. There is some sample code included on that section:

class Person: Object {
  dynamic var tmpID = 0
  var name: String { // read-only properties are automatically ignored
    return "\(firstName) \(lastName)"
  }
  dynamic var firstName = ""
  dynamic var lastName = ""

  override static func ignoredProperties() -> [String] {
    return ["tmpID"]
  }
}

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