如何在Django项目的其他模块中正确导入模型？

Question

If i want to use some model in extra file in my Django project, i can't do it by this simple way:

from myproject_app.models import *

because i get this error:

django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

To solve this problem, I found this solution:

import os
import django
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.settings")
django.setup()
from myproject_app.models import *

Ok. It works. But if i want to use any fuction from this extra file in models.py project does not start at all!

Please help me.

Answer 1

i think you forgot to register your app in,

INSTALLED_APPS = (
    myproject_app,
)

Answer 2

将您创建的所有应用程序添加到INSTALLED_APPS，并且由于PEP8透视图永远不会通过“ *”导入所有模型，而是根据您使用的名称单独导入