a Sic<@sdZddlZddlmZedgdejejBZGdddZ Gd d d Z Gd d d Z Gd ddZ GdddZ Gddde e e ZGddde e e ZGddde e e ZGddde e e ZdS)zyMySQLdb Cursors This module implements Cursors of various types for MySQLdb. By default, MySQLdb uses the Cursor class. N)ProgrammingError)z'\s*((?:INSERT|REPLACE)\b.+\bVALUES?\s*)z6(\(\s*(?:%s|%\(.+\)s)\s*(?:,\s*(?:%s|%\(.+\)s)\s*)*\))z(\s*(?:ON DUPLICATE.*)?);?\s*\Zc@seZdZdZdZddlmZmZmZm Z m Z m Z m Z m Z mZmZmZdZddZdd Zd d Zd d ZddZddZddZddZddZddZddZddZd-ddZd d!Zd"d#Z d.d%d&Z!d'd(Z"d/d)d*Z#d+d,Z$eZeZe Z e Z e Z e Z e Z eZeZeZdS)0 BaseCursoraA base for Cursor classes. Useful attributes: description A tuple of DB API 7-tuples describing the columns in the last executed query; see PEP-249 for details. description_flags Tuple of column flags for last query, one entry per column in the result set. Values correspond to those in MySQLdb.constants.FLAG. See MySQL documentation (C API) for more information. Non-standard extension. arraysize default number of rows fetchmany() will fetch ir) MySQLErrorWarningErrorInterfaceError DatabaseError DataErrorOperationalErrorIntegrityError InternalErrorrNotSupportedErrorNcCs@||_d|_d|_d|_d|_d|_d|_d|_d|_d|_ dS)Nr) connection descriptiondescription_flagsrowcount arraysize _executed lastrowid_result rownumber_rows)selfrrK/var/www/html/django/DPS/env/lib/python3.9/site-packages/MySQLdb/cursors.py__init__AszBaseCursor.__init__cCsJz6|jdurWd|_d|_dS|r(qWd|_d|_nd|_d|_0dS)z6Close the cursor. No further queries will be possible.N)rrnextsetrrrrcloseNs zBaseCursor.closecCs|SNrr rrr __enter__YszBaseCursor.__enter__cGs~|dSr")r!)rexc_inforrr__exit__\szBaseCursor.__exit__csz|j|jfddt|ttfrBtfdd|D}n0t|trffdd|D}n |}d|S)NcsHt|tr|St|tr,tt|St|trDtt|S|Sr") isinstancestrencodetuplemaplist)x)encoding ensure_bytesrrr.ds    z-BaseCursor._escape_args..ensure_bytesc3s|]}|VqdSr"r.0argr.literalrr nz*BaseCursor._escape_args..cs"i|]\}}||qSrr)r0keyvalr2rr psz+BaseCursor._escape_args..)r-r3r&r)r+dictitems)rargsconnretr)r-r.r3r _escape_args`s    zBaseCursor._escape_argscCs|jstddS)Nzexecute() first)rrr rrr_check_executed|szBaseCursor._check_executedcCs@|jr||}|}|dkr*dS|||dS)z`Advance to the next result set. Returns None if there are no more result sets. rNr)rfetchall_get_db next_result_do_get_result_post_get_result)rdbnrrrrrs zBaseCursor.nextsetcCsV||_}|dur$d|_|_n||_||_||_d|_| |_ dSNr) _get_resultrrrdescribe field_flags affected_rowsrr insert_idr)rrEresultrrrrCs   zBaseCursor._do_get_resultcCsdSr"rr rrrrDszBaseCursor._post_get_resultcGsdSz!Does nothing, required by DB API.Nrrr;rrr setinputsizesszBaseCursor.setinputsizescGsdSrNrrOrrrsetoutputsizesszBaseCursor.setoutputsizescCs|j}|durtd|S)Nz cursor closed)rr)rconrrrrAszBaseCursor._get_dbc Cs|r q|}t|tr(||j}|durt|trzi}|D],\}}t|trd||j}||||<qF|}nt t |j|}z ||}Wn0t y}zt t|WYd}~n d}~00t|t tfsJ||}|S)aExecute a query. query -- string, query to execute on server args -- optional sequence or mapping, parameters to use with query. Note: If args is a sequence, then %s must be used as the parameter placeholder in the query. If a mapping is used, %(key)s must be used as the placeholder. Returns integer represents rows affected, if any N)rrAr&r'r(r-r9r:r3r)r* TypeErrorrbytes bytearray_query) rqueryr;rEnargsr6itemmresrrrexecutes*       " zBaseCursor.executec s|sdSt}|rx|dd}|d}|dp>d}|ddkrX|d d ks\J||||jjStfd d |D_ j S) axExecute a multi-row query. :param query: query to execute on server :param args: Sequence of sequences or mappings. It is used as parameter. :return: Number of rows affected, if any. This method improves performance on multiple-row INSERT and REPLACE. Otherwise it is equivalent to looping over args with execute(). Nrrrr(r)c3s|]}|VqdSr")r\r/rWrrrr4r5z)BaseCursor.executemany..) RE_INSERT_VALUESmatchgrouprstrip_do_execute_manymax_stmt_lengthrAr-sumr)rrWr;rZZq_prefixZq_valuesZ q_postfixrrar executemanys$   zBaseCursor.executemanyc Cs|}|j}t|tr"||}t|tr6||}t|trJ||}t|} t|}||t||} | | 7} d} |D]^} ||| |} t| t| t|d|kr| | | |7} t|} n| d7} | | 7} q|| | | |7} | |_ | S)Nrr,) rAr>r&r'r(rUiternextlenr\r) rprefixvaluespostfixr;rgr-r<escapesqlvrowsr1rrrrfs.         zBaseCursor._do_execute_manyrcs|ttrj|rbddddfddt|D}|||ddfdd t t |Df}|||S) aExecute stored procedure procname with args procname -- string, name of procedure to execute on server args -- Sequence of parameters to use with procedure Returns the original args. Compatibility warning: PEP-249 specifies that any modified parameters must be returned. This is currently impossible as they are only available by storing them in a server variable and then retrieved by a query. Since stored procedures return zero or more result sets, there is no reliable way to get at OUT or INOUT parameters via callproc. The server variables are named @_procname_n, where procname is the parameter above and n is the position of the parameter (from zero). Once all result sets generated by the procedure have been fetched, you can issue a SELECT @_procname_0, ... query using .execute() to get any OUT or INOUT values. Compatibility warning: The act of calling a stored procedure itself creates an empty result set. This appears after any result sets generated by the procedure. This is non-standard behavior with respect to the DB-API. Be sure to use nextset() to advance through all result sets; otherwise you may get disconnected. s@_s_%d=%ssSET %srjc3s$|]\}}||fVqdSr")r3)r0indexr1)rEfmtrrr4/sz&BaseCursor.callproc..s CALL %s(%s)csg|]}d|fqS)s@_%s_%dr)r0i)procnamerr 7r5z'BaseCursor.callproc..) rAr&r'r(r-join enumeraterVrrangerm)rrxr;qr)rErvrxrcallprocs       zBaseCursor.callproccCs6|}d|_|||||||_|jSr")rArrWrCrDrr)rr}rErrrrV<s  zBaseCursor._querycCs|js dS|j||jS)Nr)r fetch_row _fetch_type)rsizerrr _fetch_rowEszBaseCursor._fetch_rowcCs t|jdSr")rkfetchoner rrr__iter__JszBaseCursor.__iter__)N)r)r)%__name__ __module__ __qualname____doc__rg _exceptionsrrrr r r r r rrrrrr!r#r%r>r?rrCrDrPrQrAr\rirfr~rVrrrrrrrsB4    &! . rc@sLeZdZdZddZddZddZdd d Zd d ZdddZ ddZ dS)CursorStoreResultMixInaThis is a MixIn class which causes the entire result set to be stored on the client side, i.e. it uses mysql_store_result(). If the result set can be very large, consider adding a LIMIT clause to your query, or using CursorUseResultMixIn instead.cCs |Sr")rA store_resultr rrrrH_sz"CursorStoreResultMixIn._get_resultcCs|d|_d|_dSrG)rrrr rrrrDbs z'CursorStoreResultMixIn._post_get_resultcCs8||jt|jkrdS|j|j}|jd|_|S)z]Fetches a single row from the cursor. None indicates that no more rows are available.Nr)r?rrmrrrMrrrrfs   zCursorStoreResultMixIn.fetchoneNcCs>||j|p|j}|j|j|}t|t|j|_|SzFetch up to size rows from the cursor. Result set may be smaller than size. If size is not defined, cursor.arraysize is used.)r?rrrminrm)rrendrMrrr fetchmanyps z CursorStoreResultMixIn.fetchmanycCs6||jr |j|jd}n|j}t|j|_|S)+Fetches all available rows from the cursor.N)r?rrrmrrrrr@ys  zCursorStoreResultMixIn.fetchallrelativecCsb||dkr|j|}n|dkr*|}ntdt||dksP|t|jkrXtd||_dS)aScroll the cursor in the result set to a new position according to mode. If mode is 'relative' (default), value is taken as offset to the current position in the result set, if set to 'absolute', value states an absolute target position.rabsolutezunknown scroll mode %srz out of rangeN)r?rrreprrmr IndexError)rvaluemoderrrrscrolls zCursorStoreResultMixIn.scrollcCs,||jr|j|jdp"|j}t|Sr")r?rrrkrrrrrszCursorStoreResultMixIn.__iter__)N)r) rrrrrHrDrrr@rrrrrrrYs  rc@sFeZdZdZddZddZdddZd d Zd d Zd dZ e Z dS)CursorUseResultMixInaThis is a MixIn class which causes the result set to be stored in the server and sent row-by-row to client side, i.e. it uses mysql_use_result(). You MUST retrieve the entire result set and close() the cursor before additional queries can be performed on the connection.cCs |Sr")rA use_resultr rrrrHsz CursorUseResultMixIn._get_resultcCs.||d}|sdS|jd|_|dS)z%Fetches a single row from the cursor.rNr)r?rrrrrrrrs   zCursorUseResultMixIn.fetchoneNcCs,|||p|j}|jt||_|Sr)r?rrrrm)rrrrrrrszCursorUseResultMixIn.fetchmanycCs&||d}|jt||_|S)rr)r?rrrmrrrrr@s zCursorUseResultMixIn.fetchallcCs|Sr"rr rrrrszCursorUseResultMixIn.__iter__cCs|}|durt|Sr")r StopIteration)rrowrrrrlszCursorUseResultMixIn.next)N) rrrrrHrrr@rrl__next__rrrrrs rc@seZdZdZdZdS)CursorTupleRowsMixInzwThis is a MixIn class that causes all rows to be returned as tuples, which is the standard form required by DB API.rNrrrrrrrrrrsrc@seZdZdZdZdS)CursorDictRowsMixInznThis is a MixIn class that causes all rows to be returned as dictionaries. This is a non-standard feature.rNrrrrrrsrc@seZdZdZdS)CursorzjThis is the standard Cursor class that returns rows as tuples and stores the result set in the client.Nrrrrrrrrrsrc@seZdZdZdS) DictCursorzeThis is a Cursor class that returns rows as dictionaries and stores the result set in the client.Nrrrrrrsrc@seZdZdZdS)SSCursorz_This is a Cursor class that returns rows as tuples and stores the result set in the server.Nrrrrrrsrc@seZdZdZdS) SSDictCursorzeThis is a Cursor class that returns rows as dictionaries and stores the result set in the server.Nrrrrrrsr)rrerrcompilerz IGNORECASEDOTALLrbrrrrrrrrrrrrrs&   AB/