[英]How to pass JavaScript variable from Django-object in html template?
[英]How to pass data from django to js from html template
我有以下文件,如下所述,我想知道如何將 django 用戶名傳遞給 index.html 文件中的 js
查看.py 文件
from django.shortcuts import render
from django.contrib.auth.decorators import login_required
from .models import Message
import json
def index(request):
return render(request, 'chat/index.html')
@login_required
def room(request, room_name):
messages = Message.objects.filter(room=room_name)[0:25]
return render(request, 'chat/room.html', {'room_name': room_name,
'username': json.dumps(request.user.username),'messages': messages})
模型.py 文件
from django.db import models
from django.contrib.auth import get_user_model
User = get_user_model()
class Message(models.Model):
username = models.CharField(max_length=50)
room = models.CharField(max_length=255)
content = models.TextField()
date_added = models.DateTimeField(auto_now_add=True)
class Meta:
ordering = ('date_added',)
def __str__(self):
return self.username
index.html 中的腳本
<script>
document.querySelector('#room-name-input').focus();
document.querySelector('#room-name-submit').onclick = function(e) {
var roomName = document.querySelector('#room-name-input').value;
var userName = JSON.parse( {{ username|safe }} );
window.location.replace(roomName + '/?username=' + userName);
};
</script>
var userName = JSON.parse( `{{ username|safe }}` ); // add quotes
嘗試使用引號將 Django 變量包裝在 js 中。 例如:
var userName = JSON.parse("{{ username|safe }}");
我通過在views.py文件中使用django.utils.safestring import mark_safe和json.dumps解決了這個問題
from django.shortcuts import render
from django.utils.safestring import mark_safe
from django.contrib.auth.decorators import login_required
from django.contrib.auth import get_user_model
from .models import Message
import json
User = get_user_model()
def index(request):
username = mark_safe(json.dumps(request.user.get_username()))
return render(request, 'chat/index.html',{'username':username})
@login_required
def room(request, room_name):
messages = Message.objects.filter(room=room_name)[0:25]
return render(request, 'chat/room.html', {'room_name': room_name,
'username': mark_safe(json.dumps(request.user.get_username())),'messages': messages})
索引.html
<script>
document.querySelector('#room-name-input').focus();
document.querySelector('#room-name-submit').onclick = function(e) {
var roomName = document.querySelector('#room-name-input').value;
var userName = {{ username }}
console.log(userName);
window.location.replace(roomName+ '/?username=' + userName);
};
</script>
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