DATABASES = {
	
	'default': {
		'ENGINE': 'django.db.backends.mysql',
		'NAME': 'db1',
		'USER': 'root',
		},
	
	'users': {
		'ENGINE': 'django.db.backends.mysql',
		'NAME': 'db2',
		'USER': 'root',
		},
	
}

#and router
class AuthRouter(object):
    """A router to control all database operations on models in
    the contrib.auth application"""

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

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

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

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