ios - 一次性将所有 Realm 对象转换为字典

Question

我正在使用 Realm，并且有一个扩展，用于将我的 Realm 模型转换为 Dictionary ，但我不知道如何转换我的所有 Realm 模型立刻。我想知道如何一次在一处转换所有 Realm 对象，以便我可以将该字典发送到 API。 这是我的 Realm 对象模型和我使用的扩展:

class OrderItemList: Object {

dynamic var dateCreated = NSDate()
let orderItems = List<OrderItem>()
}

class OrderItem: Object {

dynamic var name = " "
dynamic var amount = 0
dynamic var internalUnique = Int()
dynamic var isCompleted = false
} 

扩展名:

extension Object {
    func toDictionary() -> NSDictionary {
        let properties = self.objectSchema.properties.map { $0.name }
        let dictionary = self.dictionaryWithValuesForKeys(properties)

        let mutabledic = NSMutableDictionary()
        mutabledic.setValuesForKeysWithDictionary(dictionary)

        for prop in self.objectSchema.properties as [Property]! {
            // find lists
            if let nestedObject = self[prop.name] as? Object {
                mutabledic.setValue(nestedObject.toDictionary(), forKey: prop.name)
            } else if let nestedListObject = self[prop.name] as? ListBase {
                var objects = [AnyObject]()
                for index in 0..<nestedListObject._rlmArray.count  {
                    let object = nestedListObject._rlmArray[index] as AnyObject
                    objects.append(object.toDictionary())
                }
                mutabledic.setObject(objects, forKey: prop.name)
            }

        }
        return mutabledic
    }

}

Answer 1

不幸的是，没有什么 Elixir 可以将一批 Realm 对象转换为字典。您需要查询所需的对象，然后循环遍历每个对象以生成其序列化版本。

let realm = try! Realm()
var objectDictionaries = [NSDictionary]()

let allObjects = realm.objects(OrderItemList.self)
for object in allObjects {
    let dictionary = object.toDictionary()
    objectDictionaries.append(dictionary)
}

我希望回答了您的问题!