Question

我的模型包含所有资产（打印机，计算机，扫描仪，照片复印机......），我将其保存在一个表格中，如下所示：

class Assets(models.Model):
Tag = models.CharField (max_length = 20, unique=True)
SN = models.CharField (max_length = 20, unique=True)
IP = models.IPAddressField (null=True, blank=True)
MacAddress = models.CharField (max_length = 25, null=True, blank=True)
AssetsType = (
    ('Printer','Printer'),
    ('Monitor','Monitor'),
    ('Scanner','Scanner'),
    ('Personal Computer','PC'),
    ('Laptop','Laptop'),
    ('IPAD', 'IPad'),
    ('IMAC', 'IMac'),
    ('PhotoCopier','PhotoCopier'),
    )
Type = models.CharField (max_length = 25 , choices= AssetsType)
employee = models.ForeignKey (Employee, null=True, blank=True)
building = models.ForeignKey (Location, to_field ='Building', related_name = 'Buliding_Name')

问题是，如果用户选择打印机，我想询问哪种类型的打印机，而对于扫描仪，我想问一下所用扫描仪的类型？

我希望只有当用户选择打印机或扫描仪时，才会显示扫描仪或打印机的类型字段？

如何基于其他领域的其他选择创建一个领域？

0 个答案: