Vue js 错误推送与方法发送消息

Question

我有方法：

props: ['convId'],
data() {
return {
messages: [],
newMessage: ''
};
},
methods: {
sendMessage() {
axios.post('/sendMessage/' + this.convId, { message: this.newMessage })
.then(response =>  this.messages.push(response.data.data));
this.messages.push(newMessage);
this.newMessage = '';
console.log(this.messages.id); //TypeError: Cannot read property 'id' of undefined
}
},

当我尝试更新此消息时。我得到了这个对象的未定义属性。为什么？

在请求中，我返回对象：

{"body":"test","user_id":1,"type":"text","conversation_id":1,"updated_at":"2018-06-04 13:15:27","created_at":"2018-06-04 13:15:27","id":16,"conversation":{"id":1,"private":1,"data":null,"created_at":"2018-06-01 12:54:33","updated_at":"2018-06-04 13:15:27","users":[{"id":1,"name":"Axer","email":"[e-mail]","created_at":"2018-06-01 12:35:37","updated_at":"2018-06-01 12:35:37","pivot":{"conversation_id":1,"user_id":1,"created_at":"2018-06-01 12:54:33","updated_at":"2018-06-01 12:54:33"}},{"id":2,"name":"Testumus","email":"[e-mail]","created_at":"2018-06-01 12:46:30","updated_at":"2018-06-01 12:46:30","pivot":{"conversation_id":1,"user_id":2,"created_at":"2018-06-01 12:54:33","updated_at":"2018-06-01 12:54:33"}}]}}

我该如何解决这个问题？

Answer 1

您尚未指定newMessage变量。也许您想插入this.newMessage.

如果您尝试获取已插入的结果，也许您可以将数据库数据返回到响应中，然后推送消息，这样您就可以获得用于在控制台上注销的id和其他列。

axios.post('/sendMessage/' + this.convId, { message: this.newMessage })
.then((response) {  
this.messages.push(response.data.data) // Fetched message from server
this.newMessage = '';
console.log(this.messages.id); 
})

Answer 2

props: ['convId'],
data() {
return {
messages: [],
newMessage: ''
};
},
methods: {
sendMessage() {
axios.post('/sendMessage/' + this.convId, { message: this.newMessage })
.then((response) {  
this.messages.push(response.data.data);
this.messages.push(newMessage);
this.newMessage = '';
console.log(this.messages.id); 
});
}
},

试试这个。