Django-从另一个项目导入模型 [英] Django - import model from another project

问题描述

我从来没有做过这样的事情，所以我不确定什么是解决这个问题的最佳方法：

I've never done such thing so i'm not sure what would be the best approach for solving this problem:

我有两个Django项目：

I have two Django projects:

root/
    project1/
            manage.py
            project1/
                    models.py
                    urls.py
                    ...
    project2/
            manage.py
            project2/
                    models.py
                    urls.py
                    ...

这些项目使用相同的数据库，它们每个都有大约10个模型（数据库表），并且一些模型重叠：Project1需要Project2模型之一的ForeignKey，但Project2也需要Project1模型之一的ForeignKey：

Those projects use same database, they have around 10 models (database tables) each and some of the models overlap: Project1 needs ForeignKey from one fo the Project2's models, but also Project2 needs ForeignKey from one of the Project1's models:

Project1：

class Area_model(models.Model):
    name = models.CharField(max_length=25)
    url = models.CharField(max_length=25)

class Question_model(models.Model):
    text = models.TextField(max_length=1000)
    date = models.CharField(max_length=40)
    answer = models.SmallIntegerField()
    ...
    employee = models.ForeignKey(Employee_model)

Project2：

class Employee_model(models.Model):
    name = models.CharField(max_length=15)
    adress = models.CharField(max_length=15)
    area = models.ForeignKey(Area_model)

将project1.models导入到project2的models.py中，但显示为未知模块。我需要将project1导入到project2并进行反向，这会是一个问题吗？ （循环引用？）
如果是这样，我如何以其他方式完成此操作？

I tried to import project1.models into project2's models.py but it says 'unknown module'. I need to import project1 to project2 and reverse, is that going to be a problem? (circular reference?) If so, how can i accomplish this in some other way?

推荐答案

在您的WSGI中.py，通过 sys.path.append（'/ root'）将第二个项目的路径添加到sys.path。

In your WSGI.py, add the path of your second project to the sys.path by sys.path.append('/root').

在第一个项目的settings.py中，将'project2.app2'添加到 INSTALLED_APPS 列表：

In your settings.py of the first project, add 'project2.app2' to the INSTALLED_APPS list:

INSTALLED_APPS = [
    ...
    'app1',
    'project2.app2',
    ...
]

然后您应该能够通过使用project2.project2.models import * 轻松导入第二个项目的模型*

And then you should be able to easily import the models of your second project by using from project2.project2.models import *

在至少这对我有用。

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