如何在 form.save() 之后获取实体

How to get the entity after form.save()

我有表单 class,它接收来自网络浏览器的 POST 请求。

class WaveFileForm(forms.ModelForm):
    class Meta:
        model = WaveFile
        fields = ('description', 'document', )

然后form.save()

将其保存为模型实体
if request.method == 'POST':
    form = WaveFileForm(request.POST, request.FILES)
    if form.is_valid():
        form.save()
        print(form.cleaned_data.get('document'))// it returns filename, but I want to have saved file path, so I want entity itself
        WaveFile.objects.get("(saved_one)")

但现在我想立即获取由 form.save()

保存的实体

我该怎么做?

form.save() 将 return 实例,因此:

wave_file = form.save()