doc: udpate readme

Author: aermin

README-zh_CN.md

@@ -1,8 +1,9 @@
 ![ghChat](https://user-images.githubusercontent.com/24861316/54087066-55783580-438a-11e9-9a5d-14288e84a3f9.png)
 
-Node 版本: 8.12.0
-Npm 版本: 6.4.1
-MySQL 版本: 5.7.22
+[![Node.js](https://img.shields.io/badge/Node.js-10.15.3-brightgreen.svg)](https://nodejs.org/en/download/)
+[![MySQL](https://img.shields.io/badge/MySQL-5.7.22-lightgrey.svg)](https://www.mysql.com/downloads/)
+[![License](https://img.shields.io/badge/License-MIT-green.svg)](https://github.com/aermin/ghChat/blob/master/LICENSE)
+[![Author](https://img.shields.io/badge/Author-aermin-blue.svg)](https://github.com/aermin)
 
 [English](./README.md) | 简体中文
 

README.md

@@ -1,8 +1,10 @@
 ![ghChat](https://user-images.githubusercontent.com/24861316/54087066-55783580-438a-11e9-9a5d-14288e84a3f9.png)
 
-Node version: 8.12.0
-Npm version: 6.4.1
-MySQL version: 5.7.22
+
+[![Node.js](https://img.shields.io/badge/Node.js-10.15.3-brightgreen.svg)](https://nodejs.org/en/download/)
+[![MySQL](https://img.shields.io/badge/MySQL-5.7.22-lightgrey.svg)](https://www.mysql.com/downloads/)
+[![License](https://img.shields.io/badge/License-MIT-green.svg)](https://github.com/aermin/ghChat/blob/master/LICENSE)
+[![Author](https://img.shields.io/badge/Author-aermin-blue.svg)](https://github.com/aermin)
 
 English | [简体中文](./README-zh_CN.md)
 

src/components/GroupChat/index.js

@@ -141,8 +141,8 @@ class GroupChat extends Component {
   componentDidMount() {
     const { allGroupChats } = this.props;
     const chatItem = allGroupChats && allGroupChats.get(this.chatId);
-    // (产品设计) 当查找没加过的群，点击去没群内容，请求出群内容，避免不了解而加错群
-    if (!chatItem) {
+    // (产品设计) 当查找没加过的群，点击去没群内容，请求出群内容，避免不了解而后悔加群
+    if (!chatItem && window.socket) {
       window.socket.emit('getOneGroupItem', { groupId: this.chatId, start: 1 }, groupMsgAndInfo => {
         this.setState({ groupMsgAndInfo });
       });
@@ -179,7 +179,7 @@ class GroupChat extends Component {
       showShareModal,
       disableJoinButton,
     } = this.state;
-    if (!allGroupChats && !allGroupChats.size) return null;
+    if ((!allGroupChats && !allGroupChats.size) || !this.chatId) return null;
     const chatItem = allGroupChats.get(this.chatId);
     const messages = chatItem ? chatItem.messages : groupMsgAndInfo.messages;
     const groupInfo = chatItem ? chatItem.groupInfo : groupMsgAndInfo.groupInfo;

src/components/PrivateChat/index.js

@@ -140,7 +140,7 @@ export default class PrivateChat extends Component {
       initApp,
     } = this.props;
     const { showPersonalInfo, showShareModal, toUserInfo, disableJoinButton } = this.state;
-    if (!allPrivateChats && !allPrivateChats.size) return null;
+    if ((!allPrivateChats && !allPrivateChats.size) || !this.chatId) return null;
     const chatItem = allPrivateChats.get(this.chatId);
     const messages = chatItem ? chatItem.messages : [];
     const userInfo = chatItem ? chatItem.userInfo : toUserInfo;

src/components/Setting/index.js

@@ -81,7 +81,7 @@ function Setting({ initApp, history, globalSettings, setGlobalSettings }) {
         项目交流群
       </div>
       <Button clickFn={() => setLogoutModalVisible(true)} value="退出登录" />
-      <div className="version">Version: 2.5.1</div>
+      <div className="version">Version: 2.5.2</div>
     </div>
   );
 }