Django循环导入和模型问题

Question

我在两个不同的应用程序中有两个Django models.py 。

processor app models.py

from address.models import Address
...defining clasess
class Displayble(models.Model):
 # It has no DB fields

address app models.py

from processor.models import Displayable
class Address(models.Model, Displayble):
...some fields, stored in DB

将Dispalyble类移至另一个文件是解决此依赖性的唯一选择吗？

Answer 1

使用django的apps.get_model导入Address模型。 https://docs.djangoproject.com/zh-CN/1.11/ref/applications/#django.apps.apps.get_model 。

在您的processor app models.py替换

from address.models import Address
...defining clasess
class Displayble(models.Model):
# It has no DB fields

用

from django.apps import apps
Address = apps.get_model(app_label='address', model_name='Address')
....go ahead and use Address as though imported
class Displayable(models.Model):
...