python - Django 表单字段未加载到模板中

Question

我似乎无法在我的模板中加载模型表单。

模型.py

from django.db import models

class Event(models.Model):
    name = models.CharField(max_length=60)
    start_datetime = models.DateTimeField()
    end_datetime = models.DateTimeField()
    description = models.TextField()

表单.py

from django import forms
from .models import Event

class EventForm(forms.ModelForm):
    class Meta:
        model = Event
        fields = ['name']

View .py

from django.shortcuts import render
from .forms import EventForm

def index(request):
    if request.method == 'POST':
        form = EventForm(request.POST)
        if form.is_valid():
            form.save()
    else:
        form = EventForm()

    return render(request, 'index.html')

index.html

<form method="POST" action="">
  {% csrf_token %}
  {{ form.as_p }}
</form>
<button type="submit">Save</button>

当在 GET 请求的views.py 中添加 print(form) 时，我可以让表单在加载时打印到控制台，但它不会加载到模板中。

Answer 1

关于使用表单的不同方式的好例子:https://docs.djangoproject.com/en/1.11/topics/forms/#the-view

要渲染的 index.html 需要 form 变量。所以Render方法调用应该是这样的:

render(request, 'index.html', {'form': form})