自定义用户数据 — Swift SDK

在此页面上

读取用户的自定义数据

创建用户的自定义数据文档
更新用户的自定义数据

Realm 现已更名为 Atlas Device SDK – 了解详情

读取用户的自定义数据

您可以通过当前登录用户的 User对象读取该用户的自定义用户数据。您无法通过User对象编辑自定义用户数据。要编辑自定义用户数据，请参阅更新自定义用户数据。要读取数据，请访问已登录用户的User对象上的customData属性：

RLMApp *app = [RLMApp appWithId:YOUR_APP_ID];
[app loginWithCredential:[RLMCredentials anonymousCredentials] completion:^(RLMUser *user, NSError *error) {
    if (error != nil) {
        NSLog(@"Failed to log in: %@", error);
        return;
    }
    
    // If the user data has been refreshed recently, you can access the
    // custom user data directly on the user object
    NSLog(@"User custom data: %@", [user customData]);
    
    // Refresh the custom data
    [user refreshCustomDataWithCompletion:^(NSDictionary *customData, NSError *error) {
        if (error != nil) {
            NSLog(@"Failed to refresh custom user data: %@", error);
            return;
        }
        NSLog(@"Favorite color: %@", customData[@"favoriteColor"]);
    }];
}];

let appId = YOUR_APP_SERVICES_APP_ID // replace this with your App ID
let app = App(id: appId)
app.login(credentials: Credentials.anonymous) { (result) in
    switch result {
    case .failure(let error):
        print("Failed to log in: \(error.localizedDescription)")
    case .success(let user):
        // If the user data has been refreshed recently, you can access the
        // custom user data directly on the user object
        print("User custom data: \(user.customData)")
        // Refresh the custom user data
        user.refreshCustomData { (result) in
            switch result {
            case .failure(let error):
                print("Failed to refresh custom data: \(error.localizedDescription)")
            case .success(let customData):
                // favoriteColor was set on the custom data.
                print("Favorite color: \(customData["favoriteColor"] ?? "not set")")
                return
            }
        }
    }
}

警告

自定义数据可能已过时

当基础数据发生变化时，Atlas App Services 不会立即动态更新客户端用户自定义数据文档的值。相反，每当用户刷新其访问令牌时，Atlas App Services 都会获取最新版本的自定义用户数据，而大多数联系Atlas App Services 后端的 SDK 操作都会使用该令牌。如果令牌在其默认30分钟到期时间之前未刷新，则 Swift SDK 会在下次调用后端时刷新令牌。自定义用户数据可能会过时长达30分钟，加上 SDK 下次调用后端之前的时间。

注意

如果您需要最新版本的自定义用户数据，请使用refreshCustomDataWithCompletion方法请求最新版本的用户自定义数据。

创建用户的自定义数据文档

要为用户创建自定义用户数据，请在自定义用户数据集合中创建 MongoDB 文档。文档的用户 ID 字段应包含用户的用户 ID。

提示

在 App Services 用户界面中，检查Custom User Data标签页下的 App Users页面，查找并配置自定义用户数据设置，包括：

自定义用户数据集群、数据库和collection
用于将自定义用户数据文档映射到用户的用户 ID 字段

以下示例使用 MongoDB 远程访问将包含当前登录用户的用户 ID 和favoriteColor值的文档插入自定义用户数据集合：

RLMApp *app = [RLMApp appWithId:YOUR_APP_ID];
[app loginWithCredential:[RLMCredentials anonymousCredentials] completion:^(RLMUser *user, NSError *error) {
    if (error != nil) {
        NSLog(@"Failed to log in: %@", error);
        return;
    }
    RLMMongoClient *client = [user mongoClientWithServiceName:@"mongodb-atlas"];
    RLMMongoDatabase *database = [client databaseWithName:@"my_database"];
    RLMMongoCollection *collection = [database collectionWithName:@"users"];
    [collection insertOneDocument:
        @{@"userId": [user identifier], @"favoriteColor": @"pink"}
        completion:^(id<RLMBSON> newObjectId, NSError *error) {
            if (error != nil) {
                NSLog(@"Failed to insert: %@", error);
            }
            NSLog(@"Inserted custom user data document with object ID: %@", newObjectId);
    }];
}];

let appId = YOUR_APP_SERVICES_APP_ID // replace this with your App ID
let app = App(id: appId)
app.login(credentials: Credentials.anonymous) { (result) in
    switch result {
    case .failure(let error):
        print("Failed to log in: \(error.localizedDescription)")
    case .success(let user):
        let client = user.mongoClient("mongodb-atlas")
        let database = client.database(named: "my_database")
        let collection = database.collection(withName: "users")
        // Insert the custom user data object
        collection.insertOne([
            "userId": AnyBSON(user.id),
            "favoriteColor": "pink"
            ]) { (result) in
            switch result {
            case .failure(let error):
                print("Failed to insert document: \(error.localizedDescription)")
            case .success(let newObjectId):
                print("Inserted custom user data document with object ID: \(newObjectId)")
            }
        }
    }
}

在创建自定义用户数据文档时，您可以向其中添加任意数量的字段和值。用户 ID 字段是文档要在User对象上作为自定义用户数据使用的唯一要求。

更新用户的自定义数据

您可以使用MongoDB Data Access 、 Atlas Device Sync 、 MongoDB Compass或MongoDB Atlas Data Explorer 更新自定义用户数据。

要使用 MongoDB 数据访问更新用户的自定义用户数据，请编辑其用户 ID 字段包含该用户的用户 ID 的 MongoDB 文档。以下示例使用MongoDB 数据访问来更新包含自定义用户数据集合中当前登录用户的用户 ID 的文档的favoriteColor字段：

RLMApp *app = [RLMApp appWithId:YOUR_APP_ID];
[app loginWithCredential:[RLMCredentials anonymousCredentials] completion:^(RLMUser *user, NSError *error) {
    if (error != nil) {
        NSLog(@"Failed to log in: %@", error);
        return;
    }
    RLMMongoClient *client = [user mongoClientWithServiceName:@"mongodb-atlas"];
    RLMMongoDatabase *database = [client databaseWithName:@"my_database"];
    RLMMongoCollection *collection = [database collectionWithName:@"users"];
    // Update the user's custom data document
    [collection updateOneDocumentWhere:@{@"userId": [user identifier]}
        updateDocument: @{@"favoriteColor": @"cerulean"}
        completion:^(RLMUpdateResult *updateResult, NSError *error) { 
            if (error != nil) {
                NSLog(@"Failed to insert: %@", error);
            }
            NSLog(@"Matched: %lu, modified: %lu", [updateResult matchedCount], [updateResult modifiedCount]);
    }];
}];

let appId = YOUR_APP_SERVICES_APP_ID // replace this with your App ID
let app = App(id: appId)
app.login(credentials: Credentials.anonymous) { (result) in
    switch result {
    case .failure(let error):
        print("Failed to log in: \(error.localizedDescription)")
    case .success(let user):
        // Access the custom user document remotely to update it.
        let client = user.mongoClient("mongodb-atlas")
        let database = client.database(named: "my_database")
        let collection = database.collection(withName: "users")
        collection.updateOneDocument(
            filter: ["userId": AnyBSON(user.id)],
            update: ["favoriteColor": "cerulean"]
        ) { (result) in
            switch result {
            case .failure(let error):
                print("Failed to update: \(error.localizedDescription)")
                return
            case .success(let updateResult):
                // User document updated.
                print("Matched: \(updateResult.matchedCount), updated: \(updateResult.modifiedCount)")
            }
        }
    }
}

提示

要确定用户的 ID，请访问User.id属性或在Users标签页下App Users页面上的 App Services 用户界面中查找该用户。

后退

验证用户身份

来年

用户元数据