javascript - 使用 Django、Ajax、jQuery 提交表单而不刷新页面？

Question

我是 Django 的新手。我需要一个简单的例子。如何使用 Django、Ajax、jQuery 提交表单(帖子)而不刷新页面？

这是我的表单、 View 和模板:

View .py

import json
from django.shortcuts import *
from django.template import RequestContext
from linnea.web_interface import run_linnea 
from linnea_demo_app.forms import *

def linnea_demo(request):
    if request.method == "POST":
        form = AdvertForm(request.POST)

        message = 'something wrong!'
        if(form.is_valid()):
            print(request.POST['title'])
            message = request.POST['title']

        return HttpResponse(json.dumps({'message': message}))

    return render_to_response('linnea_demo.html',
            {'form':AdvertForm()}, RequestContext(request))

表单.py

from django import forms
from django.forms import ModelForm
from linnea_demo_app.models import Advert

class AdvertForm(ModelForm):
    class Meta:
        model = Advert

模型.py

from django.db import models


class Advert(models.Model):
    text = models.TextField()

index.html

<form action="" method="POST" id="post-form">
                  {% csrf_token %}
                  {{form.as_p}}
                  <input type="submit" id="btnGetKernel" class="" value="Generate Kernel"/>
              </form>

.js

$('#form').submit(function(e){
    $.post('/url/', $(this).serialize(), function(data){ 
       $('.message').html(data.message);
    });
    e.preventDefault();
});

但是，我收到了这个错误:

django.core.exceptions.ImproperlyConfigured: Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is prohibited; form AdvertForm needs updating.

我做得对吗？

Answer 1

错误信息非常清楚。

Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is prohibited; form AdvertForm needs updating.

您需要更新 AdvertForm 以包含 fields 或 exclude 属性。

from django import forms
from django.forms import ModelForm
from linnea_demo_app.models import Advert

class AdvertForm(ModelForm):
    class Meta:
        model = Advert
        fields = ['text']