def get_last_doc(self):
        """Returns the last document stored in Mongo.
        """

        def docs_by_ts():
            for meta_collection_name in self._meta_collections():
                meta_coll = self.meta_database[meta_collection_name]
                for ts_ns_doc in meta_coll.find(limit=-1).sort("_ts", -1):
                    yield ts_ns_doc

        return max(docs_by_ts(), key=lambda x: x["_ts"])
def get_last_doc ( self ) : def docs_by_ts ( ) : for meta_collection_name in self . _meta_collections ( ) : meta_coll = self . meta_database [ meta_collection_name ] for ts_ns_doc in meta_coll . find ( limit = - 1 ) . sort ( "_ts" , - 1 ) : yield ts_ns_doc return max ( docs_by_ts ( ) , key = lambda x : x [ "_ts" ] )
Returns the last document stored in Mongo.