如果POST是嵌套数组,如何使用request.POST更新Django模型的实例？

Question

我有一个提交以下数据的表单:

question[priority] = "3"
question[effort] = "5"
question[question] = "A question"

这些数据提交到网址/问题/ 1/save,其中1是question.id.我喜欢做的是得到问题#1并根据POST数据进行更新.我有一些工作,但我不知道如何将POST推入实例.

question = get_object_or_404(Question, pk=id)
question <<< request.POST['question'] # This obviously doesn't work, but is what I'm trying to achieve.
question.save()

那么,无论如何将QueryDict推送到模型实例并使用我的表单数据更新每个字段？

当然,我可以遍历POST并单独设置每个值,但对于这样一种优美的语言来说,这似乎过于复杂.

Answer 1

您可以使用ModelForm来完成此任务.首先定义ModelForm:

from django import forms

class QuestionForm(forms.ModelForm):
    class Meta:
        model = Question

然后,在您的视图中:

question = Question.objects.get(pk=id)
if request.method == 'POST':
    form = QuestionForm(request.POST, instance=question)
    form.save()