Django 如何定义依赖整数字段
我是Django的初学者,有一个模特Django 如何定义依赖整数字段,django,django-models,Django,Django Models,我是Django的初学者,有一个模特 class myModel(models.Model): XYZ = ( (1, "X"), (2, "Y"), (3, "Z"), ) ABC = ((1, "xA"), (2, "xB"), (3, "xC"), (4, "yA"), (5, "yB"), (
class myModel(models.Model):
XYZ = ( (1, "X"), (2, "Y"), (3, "Z"), )
ABC = ((1, "xA"), (2, "xB"), (3, "xC"), (4, "yA"), (5, "yB"),
(6, "yC"), (7, "yD"), (8, "zA"), (9, "zB"), )
xyz = models.IntegerField(_('XYZ_Field'), choices=XYZ)
abc = models.IntegerField(_('ABC_Field'), choices=ABC)
我想将abc定义为一个相关字段
例如,如果用户为xyz选择“X”,则选择abc的有效值仅为 XYZ = { (1, "X"): ((1, "xA"), (2, "xB"), (3, "xC")),
(2, "Y"): ((4, "yA"), (5, "yB"),(6, "yC"), (7, "yD")),
(3, "Z"): ((8, "zA"), (9, "zB"))}
xyz = models.IntegerField(_('XYZ_Field'), choices=XYZ)
abc = models.IntegerField(_('ABC_Field'), choices=**?????**)
有人说它必须在forms.py中处理,但我想在models.py中处理一次。因此,所有使用此模型的表单都不需要实现特定的标准
任何帮助都将受到感谢