2 базы данных SQL Server в проекте Django

Это конфигурация: def decide_on_model(model): """Small helper function to pipe all DB operations of a worlddata model to the world_data DB""" return 'source' if model._meta.app_label == 'source' else None

class TutoriasRouter: """ Implements a database router so that:

* Django related data - DB alias `default` - MySQL DB `world_django`
* Legacy "world" database data (everything "non-Django") - DB alias `world_data` - MySQL DB `world`
"""
def db_for_read(self, model, **hints):
    return decide_on_model(model)

# def db_for_write(self, model, **hints):
#     return decide_on_model(model)

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

def allow_relation(self, obj1, obj2, **hints):
    # Allow any relation if both models are part of the worlddata app
    # if obj1._meta.app_label == 'source' and obj2._meta.app_label == 'source':
    #     return True
    # # Allow if neither is part of worlddata app
    # elif 'source' not in [obj1._meta.app_label, obj2._meta.app_label]:
    #     return True
    # # by default return None - "undecided"
    return True

def allow_migrate(self, db, app_label, model_name=None, **hints):
    # allow migrations on the "default" (django related data) DB
    if db == 'default' and app_label != 'source':
        return True

    # allow migrations on the legacy database too:
    # this will enable to actually alter the database schema of the legacy DB!

    # if db == 'source' and app_label == "source":
    #    return True

    return False

`