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/**********************************************************************
* SQLExecute
*
**********************************************************************
*
* This code was created by Peter Harvey (mostly during Christmas 98/99).
* This code is LGPL. Please ensure that this message remains in future
* distributions and uses of this code (thats about all I get out of it).
* - Peter Harvey pharvey@codebydesign.com
*
**********************************************************************/
#include <config.h>
#include "driver.h"
SQLRETURN _Execute( SQLHSTMT hDrvStmt )
{
HDRVSTMT hStmt = (HDRVSTMT)hDrvStmt;
int nColumn;
int nCols;
int nRow;
m_result *pResults; /* mSQL DATA */
m_row rowResult; /* mSQL ROW */
m_field *pField; /* mSQL COL HDR */
COLUMNHDR *pColumnHeader;
/* SANITY CHECKS */
if( NULL == hStmt )
return SQL_INVALID_HANDLE;
sprintf( hStmt->szSqlMsg, "hStmt = $%08lX", hStmt );
logPushMsg( hStmt->hLog, __FILE__, __FILE__, __LINE__, LOG_WARNING, LOG_WARNING, hStmt->szSqlMsg );
if( hStmt->pszQuery == NULL )
{
logPushMsg( hStmt->hLog, __FILE__, __FILE__, __LINE__, LOG_WARNING, LOG_WARNING, "SQL_ERROR No prepared statement" );
return SQL_ERROR;
}
/**************************
* Free any current results
**************************/
if ( hStmt->hStmtExtras->aResults )
_FreeResults( hStmt->hStmtExtras );
/**************************
* send prepared query to server
**************************/
if ( (hStmt->hStmtExtras->nRows = msqlQuery( ((HDRVDBC)hStmt->hDbc)->hDbcExtras->hServer, hStmt->pszQuery )) == -1 )
{
sprintf( hStmt->szSqlMsg, "SQL_ERROR Query failed. %s", msqlErrMsg );
logPushMsg( hStmt->hLog, __FILE__, __FILE__, __LINE__, LOG_WARNING, LOG_WARNING, hStmt->szSqlMsg );
return SQL_ERROR;
}
/**************************
* snapshot our results (assume no results means UPDATE, DELETE or INSERT
**************************/
pResults = msqlStoreResult();
if ( !pResults )
return SQL_SUCCESS;
/**************************
* allocate memory for columns headers and result data (row 0 is column header while col 0 is reserved for bookmarks)
**************************/
hStmt->hStmtExtras->nRows = msqlNumRows( pResults );
hStmt->hStmtExtras->nCols = msqlNumFields( pResults );
hStmt->hStmtExtras->aResults = malloc( sizeof(char*) * (hStmt->hStmtExtras->nRows+1) * (hStmt->hStmtExtras->nCols+1) );
if ( hStmt->hStmtExtras->aResults == NULL )
{
logPushMsg( hStmt->hLog, __FILE__, __FILE__, __LINE__, LOG_WARNING, LOG_WARNING, "Not enough memory. (malloc failed)" );
hStmt->hStmtExtras->nRows = 0;
hStmt->hStmtExtras->nCols = 0;
msqlFreeResult( pResults );
return SQL_ERROR;
}
memset( hStmt->hStmtExtras->aResults, 0, sizeof(char*) * (hStmt->hStmtExtras->nRows+1) * (hStmt->hStmtExtras->nCols+1) );
/**************************
* gather column header information (save col 0 for bookmarks)
**************************/
for ( nColumn = 1; nColumn <= hStmt->hStmtExtras->nCols; nColumn++ )
{
pField = msqlFetchField( pResults );
(hStmt->hStmtExtras->aResults)[nColumn] = malloc( sizeof(COLUMNHDR) );
memset( (hStmt->hStmtExtras->aResults)[nColumn], 0, sizeof(COLUMNHDR) );
pColumnHeader = (COLUMNHDR*)(hStmt->hStmtExtras->aResults)[nColumn];
_NativeToSQLColumnHeader( pColumnHeader, pField );
}
/************************
* gather data (save col 0 for bookmarks)
************************/
nCols = hStmt->hStmtExtras->nCols;
nRow = 0;
while ( (rowResult = msqlFetchRow( pResults )) != NULL )
{
nRow++;
msqlFieldSeek( pResults, 0 );
for ( nColumn=1; nColumn <= nCols; nColumn++ )
{
if ( rowResult[nColumn-1] )
(hStmt->hStmtExtras->aResults)[nRow*nCols+nColumn] = (char *)strdup( rowResult[nColumn-1] );
}
}
hStmt->hStmtExtras->nRow = 0;
/**************************
* free the snapshot
**************************/
msqlFreeResult( pResults );
logPushMsg( hStmt->hLog, __FILE__, __FILE__, __LINE__, LOG_INFO, LOG_INFO, "SQL_SUCCESS" );
return SQL_SUCCESS;
}
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