Django：ModelForm Admin 的当前用户 ID

Question

我想用当前用户过滤一个 ModelChoiceField。我找到了一个非常接近我想做的解决方案，但我不明白 Django: How to get current user in admin forms

接受的答案是

"I can now access the current user in my forms.ModelForm by accessing self.current_user"

--admin.py

class Customer(BaseAdmin):
form = CustomerForm

def get_form(self, request,obj=None,**kwargs):
    form = super(Customer, self).get_form(request, **kwargs)
    form.current_user = request.user
    return form

--forms.py

class CustomerForm(forms.ModelForm):

default_tax =   forms.ModelChoiceField(queryset=fa_tax_rates.objects.filter(tenant=????)) 
class Meta:
    model   = fa_customers

如何在 modelchoice queryset(tenant=?????) 上获取当前用户如何在模型中调用 self.current_user(forms.py)

Answer 1

覆盖 CustomerForm 的 __init__ 构造函数：

class CustomerForm(forms.ModelForm):
    ...
    def __init__(self, *args, **kwargs):
        super(CustomerForm, self).__init__(*args, **kwargs)
        self.fields['default_tax'].queryset = 
                        fa_tax_rates.objects.filter(tenant=self.current_user))

表单字段定义中的查询集可以安全地设置为all()或none():

class CustomerForm(forms.ModelForm):
    default_tax = forms.ModelChoiceField(queryset=fa_tax_rates.objects.none())

Answer 2

只是总结解决方案，因为我很难完成这项工作并理解接受的答案

在admin.py

class MyModelForm (forms.ModelForm):

    def __init__(self, *args,**kwargs):
    super (MyModelForm ,self).__init__(*args,**kwargs)
    #retrieve current_user from MyModelAdmin
    self.fields['my_model_field'].queryset = Staff.objects.all().filter(person_name = self.current_user)

#数据库中的人名必须和Django User中的一样，否则使用类似person_name__contains

class MyModelAdmin(admin.ModelAdmin):
    form = MyModelForm 

    def get_form(self, request, *args, **kwargs):
        form = super(MyModelAdmin, self).get_form(request, *args, **kwargs)
        form.current_user = request.user #get current user only accessible in MyModelAdminand pass it to MyModelForm
        return form

Django：ModelForm Admin 的当前用户 ID

Django: Current User Id for ModelForm Admin

django

django-admin