Javascript 如何从html模板将数据从django传递到js
我有下面提到的以下文件,我想知道如何在index.html文件中将django用户名传递给js view.py文件Javascript 如何从html模板将数据从django传递到js,javascript,json,django,Javascript,Json,Django,我有下面提到的以下文件,我想知道如何在index.html文件中将django用户名传递给js view.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/ind
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})
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
models.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})
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中的脚本
<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>
<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>
document.querySelector(“#房间名称输入”).focus();
document.querySelector(“#房间名称提交”).onclick=function(e){
var roomName=document.querySelector(“#room name input”).value;
var userName=JSON.parse({{userName | safe}});
window.location.replace(roomName+'/?username='+username);
};
尝试使用引号将Django变量包装到js中。例如:
var userName = JSON.parse("{{ username|safe }}");
我通过在views.py文件中使用django.utils.safestring import mark_safe中的和json.dumps解决了这个问题
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})
index.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 = JSON.parse( {{ username|safe }} );
window.location.replace(roomName + '/?username=' + userName);
};
</script>
<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>
document.querySelector(“#房间名称输入”).focus();
document.querySelector(“#房间名称提交”).onclick=function(e){
var roomName=document.querySelector(“#room name input”).value;
var userName={{userName}
console.log(用户名);
window.location.replace(roomName+'/?username='+username);
};