o ED©iØ ã@sDddlmZddlmZddlmZddlmZGdd„deƒZ dS) é)ÚClient)Údefinesé)ÚCursor)ÚInterfaceErrorcsxeZdZdZddejejejejf‡fdd„ Z dd„Z dd„Z d d „Z d d „Z d d„Zdd„Zdd„Zddd„Z‡ZS)Ú Connectiona) Creates new Connection for accessing ClickHouse database. Connection is just wrapper for handling multiple cursors (clients) and do not initiate actual connections to the ClickHouse server. See parameters description in :data:`~clickhouse_driver.connection.Connection`. Nc sNg|_||_||_||_||_||_||_||_d|_d|_ t t |ƒ  ¡dS)NF) ÚcursorsÚdsnÚuserÚpasswordÚhostÚportÚdatabaseÚconnection_kwargsÚ is_closedÚ_hostsÚsuperrÚ__init__)Úselfr r r r r rÚkwargs©Ú __class__©ú[/var/www/Datamplify/venv/lib/python3.10/site-packages/clickhouse_driver/dbapi/connection.pyrszConnection.__init__cCsd t|ƒ|j¡S)Nz,)ÚformatÚidr©rrrrÚ__repr__"s ÿzConnection.__repr__cCs|S©NrrrrrÚ __enter__(szConnection.__enter__cCs | ¡dSr)Úclose)rÚexc_typeÚexc_valÚexc_tbrrrÚ__exit__+s zConnection.__exit__cCs<|jdur t |j¡St|jf|j|j|j|jdœ|j¤ŽS)z1 :return: a new Client instance. N)r r r r) r rÚfrom_urlr r r r rrrrrrÚ _make_client.s   þþzConnection._make_clientcCs|jD]}| ¡qd|_dS)aM Close the connection now. The connection will be unusable from this point forward; an :data:`~clickhouse_driver.dbapi.Error` (or subclass) exception will be raised if any operation is attempted with the connection. The same applies to all cursor objects trying to use the connection. TN)rr r)rÚcursorrrrr 9s   zConnection.closecCódS©zB Do nothing since ClickHouse has no transactions. NrrrrrÚcommitFózConnection.commitcCr(r)rrrrrÚrollbackLr+zConnection.rollbackcCsX|jrtdƒ‚| ¡}|jdur|jj|_n|j|j_|pt}|||ƒ}|j |¡|S)z· :param cursor_factory: Argument can be used to create non-standard cursors. :return: a new cursor object using the connection. zconnection already closedN) rrr&rÚ connectionÚhostsrrÚappend)rÚcursor_factoryÚclientr'rrrr'Rs     zConnection.cursorr)Ú__name__Ú __module__Ú __qualname__Ú__doc__rÚ DEFAULT_USERÚDEFAULT_PASSWORDÚ DEFAULT_PORTÚDEFAULT_DATABASErrrr$r&r r*r,r'Ú __classcell__rrrrrs þ  rN) r1rÚrr'rÚerrorsrÚobjectrrrrrÚs