我有一个实时聊天应用程序,我正试图在用javascript发送消息后显示一个带有消息的个人资料图片。这是我的密码。。。
models.py-这是我的消息和配置文件模型
class Message(models.Model):
author = models.ForeignKey(User, on_delete=models.CASCADE)
room = models.CharField(max_length = 255)
content = models.TextField()
date_added = models.DateTimeField(auto_now_add = True)
class Meta:
ordering = ('date_added', )
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
image = models.ImageField(default='default.png', upload_to='profile_pics')
def __str__(self):
return f'{self.user.username} Profile'
def save(self, *args,**kwargs):
super().save(*args,**kwargs)
img = Image.open(self.image.path)
if img.height > 300 or img.width > 300:
output_size = (300, 300)
img.thumbnail(output_size)
img.save(self.image.path)
消费者.py
class ChatRoomConsumer(AsyncWebsocketConsumer):
async def connect(self):
self.room_name = self.scope['url_route']['kwargs']['room_name']
self.room_group_name = 'chat_%s' % self.room_name
print(self.room_group_name)
await self.channel_layer.group_add(
self.room_group_name,
self.channel_name
)
await self.accept()
async def disconnect(self, close_code):
await self.channel_layer.group_discard(
self.room_group_name,
self.channel_name
)
async def receive(self, text_data):
text_data_json = json.loads(text_data)
message = text_data_json['message']
username = text_data_json['username']
room = text_data_json['room']
await self.save_message(username, room, message)
await self.channel_layer.group_send(
self.room_group_name,
{
'type': 'chatroom_message',
'message': message,
'username': username,
}
)
async def chatroom_message(self, event):
message = event['message']
username = event['username']
await self.send(text_data=json.dumps({
'message': message,
'username': username,
}))
@sync_to_async
def save_message(self, username, room, message):
user = User.objects.get(username = username)
Message.objects.create(author = user, room = room, content = message)
pass
下面是实时聊天的javascript代码。。。
{{ request.user.username|json_script:"user_username" }}
{{ room_name|json_script:"room-name" }}
<script>
const user_username = JSON.parse(document.getElementById('user_username').textContent);
document.querySelector('#submit').onclick = function (e) {
const messageInputDom = document.querySelector('#input');
const message = messageInputDom.value;
if(message.trim() == ''){
}
else {
chatSocket.send(JSON.stringify({
'message': message,
'username': user_username,
'room': roomName,
}));
messageInputDom.value = '';
}
};
const roomName = JSON.parse(document.getElementById('room-name').textContent);
const chatSocket = new WebSocket(
'ws://' +
window.location.host +
'/ws/chat/' +
roomName +
'/'
);
chatSocket.onmessage = function (e) {
const data = JSON.parse(e.data);
console.log(data)
if (data.message) {
document.querySelector('#chat-text').innerHTML += ('<img id="imageid" src="{{ message.author.profile.image.url }}">' + data.username + '<br>' + data.message + '<br>');
}
else {
}
}
</script>
问题在于这个 <img id="imageid" src="{{ message.author.profile.image.url }}">
在javascript代码中。因此,我的问题是,在发送消息后,如何在不刷新页面的情况下显示用户的个人资料图片和消息?
1条答案
按热度按时间qf9go6mv1#
您可以使用ajax仅刷新网页的一部分,使用不同的html文档,其中包含django html以显示配置文件图片。