无法在 Realm + React Native 中修改写入事务错误之外的托管对象

Question

我正在尝试在 Realm 和 React Native 中向我的数据库写入 class，我确定出了什么问题。我的领域代码在下面。当我在主题管理器 class 上调用 createTopic 方法时，我在屏幕上收到一条红色错误消息 "Cannot Modify Managed Objects outside of a write transaction."。写入数据库的方法以前是有效的……所以我一定是遗漏了一些简单的东西。感谢观看！

import React, { Component } from 'react';

const Realm = require('realm');

class Topic {}
Topic.schema = {
    name: 'Topic',
    primaryKey: 'key',
    properties: {
        name: 'string',
        key: 'string'
    },
};

const topicManager = new Realm({schema: [Topic]});


export class TopicManager {

constructor(props) {

  }

    createTopic(insertName) {
         const uuid = this.uuidv4();
         savedTopic = topicManager.create('Topic', {
             key: uuid,
             name: insertName,
         });
    }

    uuidv4() {
      return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
        var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
        return v.toString(16);
      });
    }

}

Answer 1

可能

createTopic(insertName) {
    topicManager.write(() => { // <--
      savedTopic = topicManager.create('Topic', {
             key: uuid,
             name: insertName,
         });
    }); // <--
}

无法在 Realm + React Native 中修改写入事务错误之外的托管对象

Cannot Modify Managed Objects outside of write transaction error in Realm + React Native

javascript

react-native

mobile

realm

realm-mobile-platform