在另一个应用的模型中导入应用模型类。

我有两个应用程序：coworkers和services，每个应用程序都有自己的models.py文件。

在coworkers models.py文件中，我可以使用"from services.models import Services"。

当我在services models.py文件中尝试使用"from coworkers.models import Status"时，我收到以下错误消息：

Traceback (most recent call last): File

"/Users/lucas/Documents/projetos/cwk-manager/lib/python2.7/site-packages/Django-1.4.3-py2.7.egg/django/core/management/commands/runserver.py",

line 91, in inner_run

self.validate(display_num_errors=True) File "/Users/lucas/Documents/projetos/cwk-manager/lib/python2.7/site-packages/Django-1.4.3-py2.7.egg/django/core/management/base.py",

line 266, in validate

num_errors = get_validation_errors(s, app) File "/Users/lucas/Documents/projetos/cwk-manager/lib/python2.7/site-packages/Django-1.4.3-py2.7.egg/django/core/management/validation.py",

line 30, in get_validation_errors

for (app_name, error) in get_app_errors().items(): File "/Users/lucas/Documents/projetos/cwk-manager/lib/python2.7/site-packages/Django-1.4.3-py2.7.egg/django/db/models/loading.py", line 158, in get_app_errors

self._populate() File "/Users/lucas/Documents/projetos/cwk-manager/lib/python2.7/site-packages/Django-1.4.3-py2.7.egg/django/db/models/loading.py", line 64, in _populate

self.load_app(app_name, True) File "/Users/lucas/Documents/projetos/cwk-manager/lib/python2.7/site-packages/Django-1.4.3-py2.7.egg/django/db/models/loading.py", line 88, in load_app

models = import_module('.models', app_name) File "/Users/lucas/Documents/projetos/cwk-manager/lib/python2.7/site-packages/Django-1.4.3-py2.7.egg/django/utils/importlib.py",

line 35, in import_module

import(name) File "/Users/lucas/Documents/projetos/cwk-manager/cwk-manager/cwk_manager/coworkers/models.py",

line 2, in

from services.models import Services File "/Users/lucas/Documents/projetos/cwk-manager/cwk-manager/cwk_manager/services/models.py",

line 5, in

class Services(models.Model): File "/Users/lucas/Documents/projetos/cwk-manager/cwk-manager/cwk_manager/services/models.py",

line 11, in Services

status = models.ForeignKey(Status) NameError: name 'Status' is not defined

--

coworker models.py

from django.db import models
from services.models import Services
class Status(models.Model):
    status_name = models.CharField(max_length=50)
    status_description = models.TextField(blank=True, null=True)
    class Meta:
        verbose_name = "Status"
        verbose_name_plural = "Status"
    def __unicode__(self):
        return self.status_name

services models.py

from django.db import models
from coworkers.models import Status
# This table contains all the information about plans and other general services provided.
class Services(models.Model):
    service_name = models.CharField(max_length=100)
    service_description = models.TextField(blank=True, null=True)
    service_price = models.DecimalField(max_digits=7, decimal_places=2, blank=True, null=True)
    creation_date = models.DateField(auto_now_add=True)
    last_update = models.DateField(auto_now=True)
    status = models.ForeignKey(Status)
    class Meta: 
        verbose_name = "Services"
        verbose_name_plural = "Services"
    def __unicode__(self):
        return self.service_name

--

有人可以帮我看看我做错了什么吗？

提前谢谢！