无法使用 mongodb 同步打开领域 [英] can't open Realm using mongodb sync

问题描述

我无法打开 Realm.我的设置有问题.这是应用程序中的代码:

I can't open a Realm. There is something wrong with my set up. This is the code in the app:

var configuration = user.configuration(partitionValue: "user=\(user.id)")
configuration.objectTypes = [User.self]
Realm.asyncOpen(configuration: configuration) { [weak self](userRealm, error) in
                self!.setLoading(false);
                guard error == nil else {
                    fatalError("Failed to open realm: \(error!)").   ///// here was my error before the edit (I changed the Permission Settings in Sync)
                }

错误代码:致命错误:无法打开领域:错误域=io.realm.unknown Code=89"操作已取消"UserInfo={Category=realm.basic_system, NSLocalizedDescription=操作已取消，错误代码=89"

Error code: "Fatal error: Failed to open realm: Error Domain=io.realm.unknown Code=89 "Operation canceled" UserInfo={Category=realm.basic_system, NSLocalizedDescription=Operation canceled, Error Code=89"

Mongodb Sync 配置截图

Screenshot of Mongodb Sync configuration

将 Sync 中的权限设置替换为 Task Tracker 应用程序中提到的设置并使其连接:

Replaced the Permission settings in Sync with the ones mentioned in the Task Tracker app and that got it connected:

根据 Jay 的建议，配置设置已更改为以下内容.

the configuration settings were changed to the below as per the suggestions from Jay.

var configuration = user.configuration(partitionValue: "\(currentUser.id!)")

这是我对用户集合的 Scheme 定义:

Here is my Scheme definition for the User Collection:

{
"properties": {
"_id": {
  "bsonType": "string"
},
"_partition": {
  "bsonType": "string"
},
"name": {
  "bsonType": "string"
}
},
"required": [
   "_id",
   "_partition",
   "name"
],
"title": "User"
}

这是我在 Xcode 中的 User 类:

This is my User class in Xcode:

class User: Object {
@objc dynamic var _id: String = ""
@objc dynamic var _partition: String = ""
@objc dynamic var name: String = ""
override static func primaryKey() -> String? {
    return "_id"
}
}

我通过更新同步权限来建立连接，因此应用程序不会再崩溃.但是，现在我收到此消息:

I got this going to establish a connection by updating the Sync Permissions, so the app does not crash any more. However, now I am getting this message:

Connection to daemon was invalidated
Signup successful!
Log in as user: y
Login succeeded!
2020-10-25...Sync: Connection[1]: Session[1]: client_reset_config = false, Realm exists = false, async open = false, client reset = falseSync: Connection[1]: Session[1]: client_reset_config = false, Realm exists = false, async open = false, client reset = false
2020-10-25...Sync: Connection[1]: Connected to endpoint '13.54.209.90:443' (from '.....:52139')
2020-10-25...Sync: Connection[1]: Reading failed: End of input
2020-10-25...Sync: Connection[1]: Connection closed due to error```

我不明白错误("无法打开领域:(错误！))"在我上面的代码中没有触发，但是在日志中它说该领域不存在！那么，这里发生了什么?

I don't understand that the error "("Failed to open realm: (error!)")" in my above code is not triggered, but then in the log it says that the realm does not exist! So, what's going on here?

这是mongodb中的用户表，所以我成功创建了一些用户.

EDIT : this is the user table in mongodb, so I created some Users successfully.

这是来自 mongodb 的日志

EDIT : This is the log from mongodb

我们可以看到用户 ID 和请求 ID 不一样！我猜这两个ID应该是同一个字符串才能认证吧??

As we can see the User Id and the Request ID are not the same! I guess that the two IDs should be the same string in order to be authenticated, right??

我正在关注 Swift 的 mongodb 网页中的 Task Tracker 应用教程，以将用户登录名添加到我的应用中.我在这里错过了什么?

I am following the Task Tracker app tutorial from the mongodb webpage for Swift to add the user login to my app. What am I missing here?

推荐答案

完全猜测，您的配置字符串不正确

As a complete guess, your config string is not correct

var configuration = user.configuration(partitionValue: "user=\(user.id)")

因为分区值解析为

partitionValue: user=Optional("5f1b586f757611faec257d88")

试试这个

guard let user = your_app.currentUser() else {
    print("no user")
    return
}

guard let userId = user.id else {
    print("no user")
    return
}

var configuration = user.configuration(partitionValue: "user=\(userId)")

更重要的是，您尝试使用的分区值是这个字符串

More to the point though, the partition value you're attempting to use is this string

user=5f1b586f757611faec257d88

我认为你真正想要的是使用用户 ID

and I think what you really want is use the user id

5f1b586f757611faec257d88

这就是我要开始的地方.如果您试图利用 Realm 规则，那么像 _partitionKey: "team_id=1234" 这样的东西会起作用，但这超出了原始问题的范围(并增加了另一层复杂性 - 明白了先工作，再探索规则).

That's where I would start. If you're trying to leverage Realm rules, then something like _partitionKey: "team_id=1234" would work but that goes beyond the scope of the original question (and adds another layer of complexity - get it working first, then explore the rules).

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