我正在嘗試在 django 中練習 ajax，但出現此錯誤“QuerySet”物件沒有屬性“META”。但是由于錯誤，它在回溯中顯示資料，但不在模板中顯示資料。如何解決此問題？
模型.py
from django.db import models
# Create your models here.
class Profile(models.Model):
name = models.CharField(max_length=100)
email = models.CharField(max_length=100)
bio = models.CharField(max_length=100)
def __str__(self):
return self.name
我認為這與觀點有關，但我無法弄清楚。視圖.py
from django.shortcuts import render
from .models import Profile
from django.http import JsonResponse
# Create your views here.
def list(request):
return render(request, 'livedata/list.html')
def getProfiles(request):
profiles = Profile.objects.all()
# print(JsonResponse({"profiles": list(profiles.values())}))
return JsonResponse({"profiles": list(profiles.values())})
網址.py
from django.urls import path
from . import views
urlpatterns = [
path('', views.list, name='list'),
path('getProfiles', views.getProfiles, name='getProfiles')
]
索引.html
{% load static %}
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
{% comment %} <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> {% endcomment %}
<script src="https://code.jquery.com/jquery-3.5.1.js" integrity="sha256-QWo7LDvxbWT2tbbQ97B53yJnYU3WhH/C8ycbRAkjPDc=" crossorigin="anonymous"></script>
<script src="{% static 'js/main.js' %}" defer></script>
<title>Hello, world!</title>
</head>
<body>
{% block contents %}{% endblock contents %}
{% block scripts %}{% endblock scripts %}
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
{% comment %} <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X 965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH 8abtTE1Pi6jizo" crossorigin="anonymous"></script> {% endcomment %}
{% comment %} <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV 2 9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script> {% endcomment %}
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3 MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
</body>
</html>
串列.html
{% extends 'livedata/index.html' %}
{% block contents %}
<h1>List of live data</h1>
<ul id="display">
</ul>
{% endblock contents %}
{% block scripts %}
<script>
$(document).ready(function () {
setInterval(function () {
$.ajax({
type: 'GET',
url: "{% url 'getProfiles' %}",
success: function (response) {
// console.log(response);
$("#display").empty();
for (var key in response.profiles) {
var temp = "<li>" response.profiles[key].name "</li>";
$("#display").append(temp);
}
},
error: function (response) {
alert("Error occured");
}
});
}, 1000);
});
</script>
{% endblock scripts %}
uj5u.com熱心網友回復：
您不應該命名 view list，它list是您在其他視圖中使用的內置函式。通過定義一個名為 的視圖list，list(profiles.values())將呼叫該視圖profile.values()作為請求。
重命名list到view_list例如和更新URL模式為引導view_list，而不是：
def view_list(request):
return render(request, 'livedata/list.html')
def getProfiles(request):
profiles = Profile.objects.all()
# does not refer to the view ↓ but to the list builtin
return JsonResponse({"profiles": list(profiles.values())})在urls.py這樣的樣子：
from django.urls import path
from . import views
urlpatterns = [
path('', views.view_list, name='list'),
path('getProfiles', views.getProfiles, name='getProfiles')
]轉載請註明出處，本文鏈接：https://www.uj5u.com/qiye/326298.html