python - 如何为 Django 中的每个应用程序使用单独的数据库

Question

我有 app1 和 app2，我想 app1 使用 db1，app2 使用 db2

我找到的方法是使用数据库路由器，有点复杂

我想知道有什么简单的方法吗？

我可以在settings.py中配置吗

Answer 1

没有。正确的方法是使用路由器。这很简单。请参阅 django 文档中的 MyAppRouter:https://docs.djangoproject.com/en/dev/topics/db/multi-db/#an-example :

class MyAppRouter(object):
    """A router to control all database operations on models in
    the myapp application"""

    def db_for_read(self, model, **hints):
        "Point all operations on myapp models to 'other'"
        if model._meta.app_label == 'myapp':
            return 'other'
        return None

    def db_for_write(self, model, **hints):
        "Point all operations on myapp models to 'other'"
        if model._meta.app_label == 'myapp':
            return 'other'
        return None

    def allow_relation(self, obj1, obj2, **hints):
        "Allow any relation if a model in myapp is involved"
        if obj1._meta.app_label == 'myapp' or obj2._meta.app_label == 'myapp':
            return True
        return None

    def allow_syncdb(self, db, model):
        "Make sure the myapp app only appears on the 'other' db"
        if db == 'other':
            return model._meta.app_label == 'myapp'
        elif model._meta.app_label == 'myapp':
            return False
        return None