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Returns a dict() zcharset must be an integerrz2charset should be either zero or a postive integerrz-Change user is not supported with compression) rrrrrrrrr)rrrr_rPrQrrrrZ _compressr+rGZmake_change_userrIrNrZr[r{rHrrrrrrrO_post_connection) rcrrrrrSrTrUrVrZ ok_packetrfrfrgcmd_change_usersF    zMySQLConnection.cmd_change_usercCs|ddS)zGet the current databasezSELECT DATABASE()r) info_queryrrfrfrgrszMySQLConnection.database)r?rDcCs|d|dS)zSet the current databasezUSE N)rC)rcr?rfrfrgrscCs(z |Wntk r"YdSXdS)a2Reports whether the connection to MySQL Server is available This method checks whether the connection to MySQL is available. It is similar to ping(), but unlike the ping()-method, either True or False is returned and no exception is raised. Returns True or False. FT)rRr(rrfrfrg is_connecteds  zMySQLConnection.is_connected)rrDcCs ||_dS)zySet the path that user can upload files. Args: path (str): Path that user can upload files. 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Raises OperationalError if not connected, InternalError if there are unread results and InterfaceError on errors. zMySQL Connection not available.zSET @`z` = %sz SET SESSION `N)rZr,cmd_reset_connectionrXrPrQrRrOrrrrr- reconnectcursoritemsexecute)rcr\r]currr?rfrfrg reset_sessions. zMySQLConnection.reset_sessionr)r_attemptsdelayrDc CsRz |Wn@tk rL}z"|r2|j||dn td|W5d}~XYnXdS)aCheck availability of the MySQL server When reconnect is set to True, one or more attempts are made to try to reconnect to the MySQL server using the reconnect()-method. delay is the number of seconds to wait between each retry. When the connection is not available, an InterfaceError is raised. Use the is_connected()-method if you just want to check the connection without raising an error. Raises InterfaceError on errors. )rerfz$Connection to MySQL is not availableN)rRr(r_r))rcr_rerfrrfrfrgpingBs  zMySQLConnection.pingcCs|jr|jdSdS)zMySQL connection IDZserver_threadidN)rIrrrfrfrg connection_idXs zMySQLConnection.connection_id)r!rprepared cursor_class dictionary named_tuplerDc s"||std|dk r:t|ts2td||S|dk rF|n|j}|dk rX|n|j}d|dkrrdO|dkrdO|dkrdO|dkrd O|dkrd Ott t t t t ttttd }z||WStk rd td dfddtdDdYnXdS)aInstantiates and returns a cursor By default, MySQLCursor is returned. Depending on the options while connecting, a buffered and/or raw cursor is instantiated instead. Also depending upon the cursor options, rows can be returned as dictionary or named tuple. Dictionary and namedtuple based cursors are available with buffered output but not raw. It is possible to also give a custom cursor through the cursor_class parameter, but it needs to be a subclass of mysql.connector.cursor.CursorBase. Raises ProgrammingError when cursor_class is not a subclass of CursorBase. Raises ValueError when cursor is not available. Returns a cursor-object rNz6Cursor class needs be to subclass of cursor.CursorBaserTrrrr'r) rrrrorrr' r)r!rrkrlriz*Cursor not available with given criteria: z, cs$g|]}d|>@dkr|qS)rrrf)rlrargsZ cursor_typerfrgrnsz*MySQLConnection.cursor..r)rrZr, issubclassrr-rVrXrrr&r!r"rr#r r$r%KeyErrorrryr )rcr!rrirjrkrlr<rfrorgr`_sX  zMySQLConnection.cursorcCs|ddS)zCommit current transactionZCOMMITN)_execute_queryrrfrfrgcommitszMySQLConnection.commitcCs|jr||ddS)zRollback current transactionZROLLBACKN)r rrsrrfrfrgrollbackszMySQLConnection.rollback)r rDcCs|||dS)aExecute a query This method simply calls cmd_query() after checking for unread result. If there are still unread result, an InterfaceError is raised. Otherwise whatever cmd_query() returns is returned. Returns a dict() N)rrC)rcr rfrfrgrss zMySQLConnection._execute_querycCs|jdd}|||S)z%Send a query which only returns 1 rowT)r!)r`rbZfetchone)rcr r`rfrfrgrYs  zMySQLConnection.info_querycCs8|ddkr|j|S|ddkr,t|tddS)a>Handle a MySQL Binary Protocol OK packet This method handles a MySQL Binary Protocol OK packet. When the packet is found to be an Error packet, an error will be raised. If the packet is neither an OK or an Error packet, InterfaceError will be raised. Returns a dict() rrrzExpected Binary OK packetN)rGZparse_binary_prepare_okr.r)rHrfrfrg_handle_binary_oks   z!MySQLConnection._handle_binary_okcCs|rt|dkrtd|ddkr.||S|ddkrD||S|ddkrXt||j|}|rrt|tsztddg|}t d|D]}|j |j |j ||<q||j }|||fS)aHandle a MySQL Result This method handles a MySQL result, for example, after sending the query command. OK and EOF packets will be handled and returned. If the packet is an Error packet, an Error exception will be raised. The tuple returned by this method consist of: - the number of columns in the result, - a list of tuples with information about the columns, - the EOF packet information as a dictionary. Returns tuple() or dict() rrrrrzIllegal result set.N)rr)rrr.rGrrrr r rHrr )rcrr rrrrfrfrg_handle_binary_results&        z%MySQLConnection._handle_binary_result) statement_idrrDcCs0|j||}d|_|jtj|ddd|_dS)zFetch a MySQL statement Result Set This method will send the FETCH command to MySQL together with the given statement id and the number of rows to fetch. FrTN)rGZmake_stmt_fetchr rrZ STMT_FETCH)rcrxrrrfrfrgcmd_stmt_fetchszMySQLConnection.cmd_stmt_fetch) statementrDcCs|tj|}||}g|d<g|d<|ddkrxtd|dD]$}|d|j|j |j qB| |j |ddkrtd|dD]$}|d|j|j |j q| |j |S)zPrepare a MySQL statement This method will send the PREPARE command to MySQL together with the given statement. Returns a dict() r parametersZ num_paramsrZ num_columns) rrZ STMT_PREPARErvr r/rGr rHrr r)rcr{rrB_rfrfrgcmd_stmt_prepare s.    z MySQLConnection.cmd_stmt_preparerf)rxdatar|rrDc Cst|}i}|rxt|D]^\}}t||trd}zd||jk}Wntk rXYnX||||||f||<q|js|jrt j dt d|j t j@r|j||t||||j|j|j} n"|jj||t||||j|jd} |jtj| d} || } | S)z"Execute a prepared MySQL statementTbr#r$)Zconverter_str_fallback)r)listr.rrmodercmd_stmt_send_long_datar]r,rrr-rNrrrGZmake_stmt_executetuplerZ_converter_str_fallbackrrZ STMT_EXECUTErw) rcrxrr|rZlong_data_usedparam_idr}rZexecute_packetrrBrfrfrgcmd_stmt_execute+sP      z MySQLConnection.cmd_stmt_execute)rxrDcCs|jtjt|dddS)zDeallocate a prepared MySQL statement This method deallocates the prepared statement using the statement_id. Note that the MySQL server does not return anything. FryN)rrZ STMT_CLOSEr@rcrxrfrfrgcmd_stmt_close^s zMySQLConnection.cmd_stmt_close)rxrrrDc Csd}d}zL||}|rR|j|||}|jtj|dd|t|7}||}qWn,tk r}ztd|W5d}~XYnX|S)a.Send data for a column This methods send data for a column (for example BLOB) for statement identified by statement_id. The param_id indicate which parameter the data belongs too. The data argument should be a file-like object. Since MySQL does not send anything back, no error is raised. When the MySQL server is not reachable, an OperationalError is raised. cmd_stmt_send_long_data should be called before cmd_stmt_execute. The total bytes send is returned. Returns int. i rF)rrrN) rrGZprepare_stmt_send_long_datarrZSTMT_SEND_LONG_DATArrr,) rcrxrr chunk_size total_sentrrrrfrfrgrks(  z'MySQLConnection.cmd_stmt_send_long_datacCs||tjt|dS)zReset data for prepared statement sent as long data The result is a dictionary with OK packet information. Returns a dict() N)rrrZ STMT_RESETr@rrfrfrgcmd_stmt_resetszMySQLConnection.cmd_stmt_resetc Cs@z ||tj|WdSttfk r:YdSXdS)zResets the session state without re-authenticating Reset command only works on MySQL server 5.7.3 or later. The result is True for a successful reset otherwise False. Returns bool TFN)rrrZRESET_CONNECTIONrWr+r,rrfrfrgr^s z$MySQLConnection.cmd_reset_connectioncCs"|jr|n|jrtddS)z'Check whether there is an unread resultzUnread result foundN)Zcan_consume_resultsrr r*rrfrfrgrs z$MySQLConnection.handle_unread_result)NNNrrENN)NN)NrNTr)F)FNN)NFNNN)FFF)N)rFrFrFrErFrFrFrF)NN)Frr)NNNNNN)r)rfrfr)Zr6 __module__ __qualname____doc__rrKr~rr rkrrrboolrr3rr7rrrr1rrr:rrrrbZ disconnectrrrrpropertyrrr5rrr8rr4r r9rrrrr<rCrrErGrrLr;rMrOrQrRrXrsetterrZr[rdrgrhr rr`rtrursrYrvrwrzr r~r r=rrrrr^r __classcell__rfrfrdrgrBus~6/  Q 5+ z2   ( ! 0-    ; { *    ?  .  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