Method _list_collections

pymongo/synchronous/database.py:1089–1115

Internal listCollections helper.

(
        self,
        conn: Connection,
        session: Optional[ClientSession],
        read_preference: _ServerMode,
        **kwargs: Any,
    )

        return self._client._retryable_read(_cmd, read_preference, session, operation)

    def _list_collections(
        self,
        conn: Connection,
        session: Optional[ClientSession],
        read_preference: _ServerMode,
        **kwargs: Any,
    ) -> CommandCursor[MutableMapping[str, Any]]:
        """Internal listCollections helper."""
        coll = cast(
            Collection[MutableMapping[str, Any]],
            self.get_collection("$cmd", read_preference=read_preference),
        )
        cmd = {"listCollections": 1, "cursor": {}}
        cmd.update(kwargs)
        with self._client._tmp_session(session) as tmp_session:
            cursor = (
                self._command(conn, cmd, read_preference=read_preference, session=tmp_session)
            )["cursor"]
            cmd_cursor = CommandCursor(
                coll,
                cursor,
                conn.address,
                session=tmp_session,
                comment=cmd.get("comment"),
            )
        cmd_cursor._maybe_pin_connection(conn)
        return cmd_cursor

    def _list_collections_helper(
        self,