peeringdb-peeringdb/peeringdb_server/db_router.py

class DatabaseRouter:
    """
    A very basic databases router that routes to a different
    read and write db
    """

    def db_for_read(self, model, **hints):
        return "read"

    def db_for_write(self, model, **hints):
        return "default"

    def allow_relation(self, obj1, obj2, **hints):
        return True

    def allow_migrate(self, db, app_label, model_name=None, **hints):
        return True


class TestRouter(DatabaseRouter):
    def db_for_read(self, model, **hints):
        return "default"