我有一个模型project_phase:Django模型递归进口 - 如何解决
from django.db import models
from django.utils import simplejson
from core.models import pmo_review_task
它引用pmo_review_task(因为它创建一个pmo_review_task其保存ovewrite)
from django.db import models
from datetime import datetime
from django.contrib.auth.models import User
from core.models import sc_review_task
这引用sc_review_task引用project_phase(因为它在保存ovewrite中创建了project_phase)
from django.db import models
from core.models import project_phase
所以它最终project_phase进口pmo_review_task进口sc_review_task进口project_phase,我想它循环某种程度上产生这个错误:
Unhandled exception in thread started by <bound method Command.inner_run of <django.core.management.commands.runserver.Command object at 0x010ACFB0>>
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\django\core\management\commands\runserver.py", line 88, in inner_run
self.validate(display_num_errors=True)
File "C:\Python27\lib\site-packages\django\core\management\base.py", line 249, in validate
num_errors = get_validation_errors(s, app)
File "C:\Python27\lib\site-packages\django\core\management\validation.py", line 35, in get_validation_errors
for (app_name, error) in get_app_errors().items():
File "C:\Python27\lib\site-packages\django\db\models\loading.py", line 146, in get_app_errors
self._populate()
File "C:\Python27\lib\site-packages\django\db\models\loading.py", line 64, in _populate
self.load_app(app_name)
File "C:\Python27\lib\site-packages\django\db\models\loading.py", line 78, in load_app
models = import_module('.models', app_name)
File "C:\Python27\lib\site-packages\django\utils\importlib.py", line 35, in import_module
__import__(name)
File "C:\work\Portman\core\models\__init__.py", line 4, in <module>
from pmo_review_task import pmo_review_task
File "C:\work\Portman\core\models\pmo_review_task.py", line 5, in <module>
from core.models import sc_review_task
File "C:\work\Portman\core\models\sc_review_task.py", line 3, in <module>
from core.models import project_phase
File "C:\work\Portman\core\models\project_phase.py", line 4, in <module>
from core.models import pmo_review_task
ImportError: cannot import name pmo_review_task
我怎么克服呢?
为什么这三种模式在单独的文件?你是否试图建立一种“每个文件模式”的架构?为什么? – 2012-02-17 10:55:08