在Swift中将数组保存到领域吗? [英] Saving Array to Realm in Swift?

问题描述

是否可以将对象数组保存到Realm?每当我对数组进行更改时，都应将其保存到Realm.

Is it possible to save an array of objects to Realm? Anytime I make a change to the array it should be saved to Realm.

我当前的解决方案是使用for loop为对象保存对象.对于附加/修改对象，调用save()可以完成此工作，但是当我从中删除对象时不会这样做.

My current solution is to save object for object with a for loop. For append/modifying objects calling save() will do the job, but not when I remove an object from it.

class CustomObject: Object {
    dynamic var name = ""
    dynamic var id = 0

    override static func primaryKey() -> String? {
    return "id"
    }
}

struct RealmDatabase {

    static var sharedInstance = RealmDatabase()

    var realm: Realm!

    let object0 = CustomObject()
    let object1 = CustomObject()

    var array = [object0, object1]

    init() {
        self.realm = try! Realm()
    }

    func save() {

        for object in self.array {
            try! self.realm.write {
                self.realm.add(object, update: true)
            }
        }
    }

}

推荐答案

要保存对象列表，您必须使用Realm List，而不是Swift数组.

To save lists of objects you have to use a Realm List, not a Swift Array.

let objects = List<CustomObject>()

然后，您可以添加元素:

Then, you can add elements:

objects.append(object1)

看看与很多关系和收藏部分/"rel =" noreferrer>官方文档.

Take a look at to many relationships and Collections sections of the official docs.

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