python - 保存后从 Django 表单获取模型 ID

Question

View .py

someForm = SomeForm(request.POST)
...
someForm.customSave(request.user)

表单.py

class SomeForm(ModelForm):

    class Meta:
        model = Some

    def customSave(self,user):
        lv = self.save(commit=False)
        lv.created_by = user
        lv.save()

如何获取刚刚从 someForm 保存的模型(或模型)的 ID？

Answer 1

由于 ModelForm.save 的行为是返回实例，你可能想在你的customSave方法中返回实例

def customSave(self, user):
    lv = self.save(commit=False)
    lv.created_by = user
    lv.save()
    return lv

然后就可以访问实例上的pk或者id了

inst = someForm.customSave(request.user)
inst.pk or inst.id