python-如何在类中定义带有值的变量以及如何在其他类中使用

发布时间：2020-12-17 17:41:30 所属栏目：Python 来源：网络整理

导读：我课外有变数.需要变量才能正常使用类.如何在课堂上移动它并在其他课堂上使用它？这很好用,但是我需要在UserDevice类中移动STATUS_CHOICES并在UserDeviceAdmin中使用STATUS_CHOICES. STATUS_CHOICES = ((0,gettext("disabled")),(1,gettext("allowed")))cla

我课外有变数.需要变量才能正常使用类.如何在课堂上移动它并在其他课堂上使用它？

这很好用,但是我需要在UserDevice类中移动STATUS_CHOICES并在UserDeviceAdmin中使用STATUS_CHOICES.

STATUS_CHOICES = ((0,gettext("disabled")),(1,gettext("allowed")))

class UserDevice(BaseModel):
    """Table with all devices added and owned by users."""

    device_uniqueid = CharField(primary_key=True)
    device_user = ForeignKeyField(User,null=True,backref='userdevices')
    device_name = CharField()
    model = CharField()
    phone = CharField()
    status = IntegerField(choices=STATUS_CHOICES,default=1)
    inserted_at = DateTimeField(null=True)

    def myfunc(self):
        return self.a

class UserDeviceAdmin(ModelView):
    can_create = False
    edit_modal = True
    column_choices = {'status': STATUS_CHOICES}
    column_list = [
        'device_uniqueid','device_user.email','device_name','model','phone','status','inserted_at',]
    column_sortable_list = ('device_uniqueid','device_user.email')
    form_ajax_refs = {'device_user': {'fields': ['email']}}

最佳答案

将其移入内部：

class UserDevice(BaseModel):
    """Table with all devices added and owned by users."""
    STATUS_CHOICES = ((0,gettext("allowed")))

从另一个类访问它：

class UserDeviceAdmin(ModelView):
    can_create = False
    edit_modal = True
    column_choices = {'status': UserDevice.STATUS_CHOICES}

就像静态变量一样.

（编辑：李大同）

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