X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1acd7ba6f2ffc10369ed74a2ac4d8a28eadf1151..5b7352027902bebecd06e2a124492fc0ee27f4e2:/src/common/db.cpp diff --git a/src/common/db.cpp b/src/common/db.cpp index 0096ce8eb3..4063cdc163 100644 --- a/src/common/db.cpp +++ b/src/common/db.cpp @@ -5,13 +5,19 @@ // source such as opening and closing the data source. // Author: Doug Card // Modified by: -// Mods: Dec, 1998: Added support for SQL statement logging and database -// cataloging +// Mods: Dec, 1998: +// -Added support for SQL statement logging and database cataloging +// Mods: April, 1999 +// -Added QUERY_ONLY mode support to reduce default number of cursors +// -Added additional SQL logging code +// -Added DEBUG-ONLY tracking of wxTable objects to detect orphaned DB connections +// -Set ODBC option to only read committed writes to the DB so all +// databases operate the same in that respect // Created: 9.96 // RCS-ID: $Id$ // Copyright: (c) 1996 Remstar International, Inc. // Licence: wxWindows licence, plus: -// Notice: This class library and its intellectual design are free of charge for use, +// Notice: This class library and its intellectual design are free of charge for use, // modification, enhancement, debugging under the following conditions: // 1) These classes may only be used as part of the implementation of a // wxWindows-based application @@ -22,30 +28,54 @@ // the wxWindows GUI development toolkit. /////////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "db.h" -#endif - /* // SYNOPSIS START // SYNOPSIS STOP */ -/* +#include "wx/wxprec.h" + +// Use this line for wxWindows v1.x +//#include "wx_ver.h" +// Use this line for wxWindows v2.x +#include "wx/version.h" + +#if wxMAJOR_VERSION == 2 + #ifdef __GNUG__ + #pragma implementation "db.h" + #endif +#endif + #ifdef DBDEBUG_CONSOLE #include #endif -*/ - -#include "wx/wxprec.h" #ifdef __BORLANDC__ - #pragma hdrstop + #pragma hdrstop #endif //__BORLANDC__ -#ifndef WX_PRECOMP - #include -#endif //WX_PRECOMP +#if wxMAJOR_VERSION == 2 + #ifndef WX_PRECOMP + #include "wx/string.h" + #include "wx/object.h" + #include "wx/list.h" + #include "wx/utils.h" + #include "wx/msgdlg.h" + #endif + #include "wx/filefn.h" + #include "wx/wxchar.h" +#endif + +#if wxMAJOR_VERSION == 1 +# if defined(wx_msw) || defined(wx_x) +# ifdef WX_PRECOMP +# include "wx_prec.h" +# else +# include "wx.h" +# endif +# endif +# define wxUSE_ODBC 1 +#endif #if wxUSE_ODBC @@ -54,44 +84,67 @@ #include #include #include -#include "wx/db.h" +#if wxMAJOR_VERSION == 1 + #include "db.h" +#elif wxMAJOR_VERSION == 2 + #include "wx/db.h" +#endif + +DbList WXDLLEXPORT *PtrBegDbList = 0; + +#ifdef __WXDEBUG__ + extern wxList TablesInUse; +#endif + +// SQL Log defaults to be used by GetDbConnection +enum sqlLog SQLLOGstate = sqlLogOFF; -DbList* WXDLLEXPORT PtrBegDbList = 0; +char SQLLOGfn[DB_PATH_MAX+1] = "sqllog.txt"; + +// The wxDB::errorList is copied to this variable when the wxDB object +// is closed. This way, the error list is still available after the +// database object is closed. This is necessary if the database +// connection fails so the calling application can show the operator +// why the connection failed. Note: as each wxDB object is closed, it +// will overwrite the errors of the previously destroyed wxDB object in +// this variable. +char DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN]; /********** wxDB Constructor **********/ -wxDB::wxDB(HENV &aHenv) +wxDB::wxDB(HENV &aHenv, bool FwdOnlyCursors) { int i; fpSqlLog = 0; // Sql Log file pointer sqlLogState = sqlLogOFF; // By default, logging is turned off + nTables = 0; - strcpy(sqlState,""); - strcpy(errorMsg,""); + wxStrcpy(sqlState,""); + wxStrcpy(errorMsg,""); nativeError = cbErrorMsg = 0; for (i = 0; i < DB_MAX_ERROR_HISTORY; i++) - strcpy(errorList[i], ""); + wxStrcpy(errorList[i], ""); // Init typeInf structures - strcpy(typeInfVarchar.TypeName,""); + wxStrcpy(typeInfVarchar.TypeName,""); typeInfVarchar.FsqlType = 0; typeInfVarchar.Precision = 0; typeInfVarchar.CaseSensitive = 0; typeInfVarchar.MaximumScale = 0; - strcpy(typeInfInteger.TypeName,""); + wxStrcpy(typeInfInteger.TypeName,""); typeInfInteger.FsqlType = 0; typeInfInteger.Precision = 0; typeInfInteger.CaseSensitive = 0; typeInfInteger.MaximumScale = 0; - strcpy(typeInfFloat.TypeName,""); + wxStrcpy(typeInfFloat.TypeName,""); typeInfFloat.FsqlType = 0; typeInfFloat.Precision = 0; typeInfFloat.CaseSensitive = 0; typeInfFloat.MaximumScale = 0; - strcpy(typeInfDate.TypeName,""); + wxStrcpy(typeInfDate.TypeName,""); typeInfDate.FsqlType = 0; typeInfDate.Precision = 0; typeInfDate.CaseSensitive = 0; @@ -102,6 +155,7 @@ wxDB::wxDB(HENV &aHenv) // Copy the HENV into the db class henv = aHenv; + fwdOnlyCursors = FwdOnlyCursors; // Allocate a data source connection handle if (SQLAllocConnect(henv, &hdbc) != SQL_SUCCESS) @@ -118,34 +172,43 @@ wxDB::wxDB(HENV &aHenv) /********** wxDB::Open() **********/ bool wxDB::Open(char *Dsn, char *Uid, char *AuthStr) { - assert(Dsn && strlen(Dsn)); + assert(Dsn && wxStrlen(Dsn)); dsn = Dsn; uid = Uid; authStr = AuthStr; -#ifndef FWD_ONLY_CURSORS - RETCODE retcode; - // Specify that the ODBC cursor library be used, if needed. This must be - // specified before the connection is made. - retcode = SQLSetConnectOption(hdbc, SQL_ODBC_CURSORS, SQL_CUR_USE_IF_NEEDED); + if (!FwdOnlyCursors()) + { + // Specify that the ODBC cursor library be used, if needed. This must be + // specified before the connection is made. + retcode = SQLSetConnectOption(hdbc, SQL_ODBC_CURSORS, SQL_CUR_USE_IF_NEEDED); - #ifdef DBDEBUG_CONSOLE +#ifdef DBDEBUG_CONSOLE if (retcode == SQL_SUCCESS) cout << "SQLSetConnectOption(CURSOR_LIB) successful" << endl; else cout << "SQLSetConnectOption(CURSOR_LIB) failed" << endl; - #endif - #endif + } // Connect to the data source - if (SQLConnect(hdbc, (UCHAR FAR *) Dsn, SQL_NTS, - (UCHAR FAR *) Uid, SQL_NTS, - (UCHAR FAR *) AuthStr, SQL_NTS) != SQL_SUCCESS) + retcode = SQLConnect(hdbc, (UCHAR FAR *) Dsn, SQL_NTS, + (UCHAR FAR *) Uid, SQL_NTS, + (UCHAR FAR *) AuthStr,SQL_NTS); + if (retcode == SQL_SUCCESS_WITH_INFO) + DispAllErrors(henv, hdbc); + else if (retcode != SQL_SUCCESS) return(DispAllErrors(henv, hdbc)); +/* + If using Intersolv branded ODBC drivers, this is the place where you would substitute + your branded driver license information + + SQLSetConnectOption(hdbc, 1041, (UDWORD) ""); + SQLSetConnectOption(hdbc, 1042, (UDWORD) ""); +*/ // Mark database as open dbIsOpen = TRUE; @@ -241,10 +304,20 @@ bool wxDB::Open(char *Dsn, char *Uid, char *AuthStr) typeInfInteger.FsqlType = SQL_INTEGER; // Date/Time - if (! getDataTypeInfo(SQL_TIMESTAMP, typeInfDate)) - return(FALSE); + if (Dbms() != dbmsDBASE) + { + if (! getDataTypeInfo(SQL_TIMESTAMP, typeInfDate)) + return(FALSE); + else + typeInfDate.FsqlType = SQL_TIMESTAMP; + } else - typeInfDate.FsqlType = SQL_TIMESTAMP; + { + if (! getDataTypeInfo(SQL_DATE, typeInfDate)) + return(FALSE); + else + typeInfDate.FsqlType = SQL_DATE; + } #ifdef DBDEBUG_CONSOLE cout << "VARCHAR DATA TYPE: " << typeInfVarchar.TypeName << endl; @@ -309,8 +382,9 @@ bool wxDB::setConnectionOptions(void) bool wxDB::getDbInfo(void) { SWORD cb; + RETCODE retcode; - if (SQLGetInfo(hdbc, SQL_SERVER_NAME, (UCHAR*) dbInf.serverName, 40, &cb) != SQL_SUCCESS) + if (SQLGetInfo(hdbc, SQL_SERVER_NAME, (UCHAR*) dbInf.serverName, 80, &cb) != SQL_SUCCESS) return(DispAllErrors(henv, hdbc)); if (SQLGetInfo(hdbc, SQL_DATABASE_NAME, (UCHAR*) dbInf.databaseName, 128, &cb) != SQL_SUCCESS) @@ -319,7 +393,11 @@ bool wxDB::getDbInfo(void) if (SQLGetInfo(hdbc, SQL_DBMS_NAME, (UCHAR*) dbInf.dbmsName, 40, &cb) != SQL_SUCCESS) return(DispAllErrors(henv, hdbc)); - if (SQLGetInfo(hdbc, SQL_DBMS_VER, (UCHAR*) dbInf.dbmsVer, 40, &cb) != SQL_SUCCESS) + // 16-Mar-1999 + // After upgrading to MSVC6, the original 20 char buffer below was insufficient, + // causing database connectivity to fail in some cases. + retcode = SQLGetInfo(hdbc, SQL_DBMS_VER, (UCHAR*) dbInf.dbmsVer, 64, &cb); + if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO ) return(DispAllErrors(henv, hdbc)); if (SQLGetInfo(hdbc, SQL_ACTIVE_CONNECTIONS, (UCHAR*) &dbInf.maxConnections, sizeof(dbInf.maxConnections), &cb) != SQL_SUCCESS) @@ -334,7 +412,8 @@ bool wxDB::getDbInfo(void) if (SQLGetInfo(hdbc, SQL_DRIVER_ODBC_VER, (UCHAR*) dbInf.odbcVer, 60, &cb) == SQL_ERROR) return(DispAllErrors(henv, hdbc)); - if (SQLGetInfo(hdbc, SQL_ODBC_VER, (UCHAR*) dbInf.drvMgrOdbcVer, 60, &cb) == SQL_ERROR) + retcode = SQLGetInfo(hdbc, SQL_ODBC_VER, (UCHAR*) dbInf.drvMgrOdbcVer, 60, &cb); + if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) return(DispAllErrors(henv, hdbc)); if (SQLGetInfo(hdbc, SQL_DRIVER_VER, (UCHAR*) dbInf.driverVer, 60, &cb) == SQL_ERROR) @@ -635,8 +714,14 @@ bool wxDB::getDataTypeInfo(SWORD fSqlType, SqlTypeInfo &structSQLTypeInfo) return(DispAllErrors(henv, hdbc, hstmt)); // if (SQLGetData(hstmt, 14, SQL_C_SHORT, (UCHAR*) &structSQLTypeInfo.MinimumScale, 0, &cbRet) != SQL_SUCCESS) // return(DispAllErrors(henv, hdbc, hstmt)); - if (SQLGetData(hstmt, 15, SQL_C_SHORT, (UCHAR*) &structSQLTypeInfo.MaximumScale, 0, &cbRet) != SQL_SUCCESS) + +//#ifdef __UNIX__ // BJO : IODBC knows about 5, not 15... +// if (SQLGetData(hstmt, 5, SQL_C_SHORT,(UCHAR*) &structSQLTypeInfo.MaximumScale, 0, &cbRet) != SQL_SUCCESS) +// return(DispAllErrors(henv, hdbc, hstmt)); +//#else + if (SQLGetData(hstmt, 15, SQL_C_SHORT,(UCHAR*) &structSQLTypeInfo.MaximumScale, 0, &cbRet) != SQL_SUCCESS) return(DispAllErrors(henv, hdbc, hstmt)); +//#endif if (structSQLTypeInfo.MaximumScale < 0) structSQLTypeInfo.MaximumScale = 0; @@ -657,7 +742,7 @@ void wxDB::Close(void) if (fpSqlLog) { fclose(fpSqlLog); - fpSqlLog = 0; //glt + fpSqlLog = 0; } // Free statement handle @@ -675,14 +760,44 @@ void wxDB::Close(void) if (SQLFreeConnect(hdbc) != SQL_SUCCESS) DispAllErrors(henv, hdbc); + // There should be zero Ctable objects still connected to this db object + assert(nTables == 0); + +#ifdef __WXDEBUG__ + CstructTablesInUse *tiu; + wxNode *pNode; + pNode = TablesInUse.First(); + char s[80]; + char s2[80]; + while (pNode) + { + tiu = (CstructTablesInUse *)pNode->Data(); + if (tiu->pDb == this) + { + sprintf(s, "(%-20s) tableID:[%6lu] pDb:[%p]", tiu->tableName,tiu->tableID,tiu->pDb); + sprintf(s2,"Orphaned found using pDb:[%p]",this); + wxMessageBox (s,s2); + } + pNode = pNode->Next(); + } +#endif + + // Copy the error messages to a global variable + int i; + for (i = 0; i < DB_MAX_ERROR_HISTORY; i++) + wxStrcpy(DBerrorList[i],errorList[i]); + } // wxDB::Close() /********** wxDB::CommitTrans() **********/ bool wxDB::CommitTrans(void) { - // Commit the transaction - if (SQLTransact(henv, hdbc, SQL_COMMIT) != SQL_SUCCESS) - return(DispAllErrors(henv, hdbc)); + if (this) + { + // Commit the transaction + if (SQLTransact(henv, hdbc, SQL_COMMIT) != SQL_SUCCESS) + return(DispAllErrors(henv, hdbc)); + } // Completed successfully return(TRUE); @@ -719,9 +834,13 @@ bool wxDB::DispAllErrors(HENV aHenv, HDBC aHdbc, HSTMT aHstmt) getchar(); #endif } + +#ifdef __WXDEBUG__ + wxMessageBox(odbcErrMsg); +#endif } - return(FALSE); // This function alway's returns false. + return(FALSE); // This function always returns false. } // wxDB::DispAllErrors() @@ -756,208 +875,212 @@ void wxDB::DispNextError(void) } // wxDB::DispNextError() /********** wxDB::logError() **********/ -void wxDB::logError(char *errMsg, char *SQLState) +void wxDB::logError(const char *errMsg, const char *SQLState) { - assert(errMsg && strlen(errMsg)); + assert(errMsg && wxStrlen(errMsg)); static int pLast = -1; int dbStatus; if (++pLast == DB_MAX_ERROR_HISTORY) { - for (int i = 0; i < DB_MAX_ERROR_HISTORY; i++) - strcpy(errorList[i], errorList[i+1]); + int i; + for (i = 0; i < DB_MAX_ERROR_HISTORY; i++) + wxStrcpy(errorList[i], errorList[i+1]); pLast--; } - strcpy(errorList[pLast], errMsg); + wxStrcpy(errorList[pLast], errMsg); - if (SQLState && strlen(SQLState)) + if (SQLState && wxStrlen(SQLState)) if ((dbStatus = TranslateSqlState(SQLState)) != DB_ERR_FUNCTION_SEQUENCE_ERROR) DB_STATUS = dbStatus; + // Add the errmsg to the sql log + WriteSqlLog(errMsg); + } // wxDB::logError() /**********wxDB::TranslateSqlState() **********/ -int wxDB::TranslateSqlState(char *SQLState) +int wxDB::TranslateSqlState(const char *SQLState) { - if (!strcmp(SQLState, "01000")) + if (!wxStrcmp(SQLState, "01000")) return(DB_ERR_GENERAL_WARNING); - if (!strcmp(SQLState, "01002")) + if (!wxStrcmp(SQLState, "01002")) return(DB_ERR_DISCONNECT_ERROR); - if (!strcmp(SQLState, "01004")) + if (!wxStrcmp(SQLState, "01004")) return(DB_ERR_DATA_TRUNCATED); - if (!strcmp(SQLState, "01006")) + if (!wxStrcmp(SQLState, "01006")) return(DB_ERR_PRIV_NOT_REVOKED); - if (!strcmp(SQLState, "01S00")) + if (!wxStrcmp(SQLState, "01S00")) return(DB_ERR_INVALID_CONN_STR_ATTR); - if (!strcmp(SQLState, "01S01")) + if (!wxStrcmp(SQLState, "01S01")) return(DB_ERR_ERROR_IN_ROW); - if (!strcmp(SQLState, "01S02")) + if (!wxStrcmp(SQLState, "01S02")) return(DB_ERR_OPTION_VALUE_CHANGED); - if (!strcmp(SQLState, "01S03")) + if (!wxStrcmp(SQLState, "01S03")) return(DB_ERR_NO_ROWS_UPD_OR_DEL); - if (!strcmp(SQLState, "01S04")) + if (!wxStrcmp(SQLState, "01S04")) return(DB_ERR_MULTI_ROWS_UPD_OR_DEL); - if (!strcmp(SQLState, "07001")) + if (!wxStrcmp(SQLState, "07001")) return(DB_ERR_WRONG_NO_OF_PARAMS); - if (!strcmp(SQLState, "07006")) + if (!wxStrcmp(SQLState, "07006")) return(DB_ERR_DATA_TYPE_ATTR_VIOL); - if (!strcmp(SQLState, "08001")) + if (!wxStrcmp(SQLState, "08001")) return(DB_ERR_UNABLE_TO_CONNECT); - if (!strcmp(SQLState, "08002")) + if (!wxStrcmp(SQLState, "08002")) return(DB_ERR_CONNECTION_IN_USE); - if (!strcmp(SQLState, "08003")) + if (!wxStrcmp(SQLState, "08003")) return(DB_ERR_CONNECTION_NOT_OPEN); - if (!strcmp(SQLState, "08004")) + if (!wxStrcmp(SQLState, "08004")) return(DB_ERR_REJECTED_CONNECTION); - if (!strcmp(SQLState, "08007")) + if (!wxStrcmp(SQLState, "08007")) return(DB_ERR_CONN_FAIL_IN_TRANS); - if (!strcmp(SQLState, "08S01")) + if (!wxStrcmp(SQLState, "08S01")) return(DB_ERR_COMM_LINK_FAILURE); - if (!strcmp(SQLState, "21S01")) + if (!wxStrcmp(SQLState, "21S01")) return(DB_ERR_INSERT_VALUE_LIST_MISMATCH); - if (!strcmp(SQLState, "21S02")) + if (!wxStrcmp(SQLState, "21S02")) return(DB_ERR_DERIVED_TABLE_MISMATCH); - if (!strcmp(SQLState, "22001")) + if (!wxStrcmp(SQLState, "22001")) return(DB_ERR_STRING_RIGHT_TRUNC); - if (!strcmp(SQLState, "22003")) + if (!wxStrcmp(SQLState, "22003")) return(DB_ERR_NUMERIC_VALUE_OUT_OF_RNG); - if (!strcmp(SQLState, "22005")) + if (!wxStrcmp(SQLState, "22005")) return(DB_ERR_ERROR_IN_ASSIGNMENT); - if (!strcmp(SQLState, "22008")) + if (!wxStrcmp(SQLState, "22008")) return(DB_ERR_DATETIME_FLD_OVERFLOW); - if (!strcmp(SQLState, "22012")) + if (!wxStrcmp(SQLState, "22012")) return(DB_ERR_DIVIDE_BY_ZERO); - if (!strcmp(SQLState, "22026")) + if (!wxStrcmp(SQLState, "22026")) return(DB_ERR_STR_DATA_LENGTH_MISMATCH); - if (!strcmp(SQLState, "23000")) + if (!wxStrcmp(SQLState, "23000")) return(DB_ERR_INTEGRITY_CONSTRAINT_VIOL); - if (!strcmp(SQLState, "24000")) + if (!wxStrcmp(SQLState, "24000")) return(DB_ERR_INVALID_CURSOR_STATE); - if (!strcmp(SQLState, "25000")) + if (!wxStrcmp(SQLState, "25000")) return(DB_ERR_INVALID_TRANS_STATE); - if (!strcmp(SQLState, "28000")) + if (!wxStrcmp(SQLState, "28000")) return(DB_ERR_INVALID_AUTH_SPEC); - if (!strcmp(SQLState, "34000")) + if (!wxStrcmp(SQLState, "34000")) return(DB_ERR_INVALID_CURSOR_NAME); - if (!strcmp(SQLState, "37000")) + if (!wxStrcmp(SQLState, "37000")) return(DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL); - if (!strcmp(SQLState, "3C000")) + if (!wxStrcmp(SQLState, "3C000")) return(DB_ERR_DUPLICATE_CURSOR_NAME); - if (!strcmp(SQLState, "40001")) + if (!wxStrcmp(SQLState, "40001")) return(DB_ERR_SERIALIZATION_FAILURE); - if (!strcmp(SQLState, "42000")) + if (!wxStrcmp(SQLState, "42000")) return(DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL2); - if (!strcmp(SQLState, "70100")) + if (!wxStrcmp(SQLState, "70100")) return(DB_ERR_OPERATION_ABORTED); - if (!strcmp(SQLState, "IM001")) + if (!wxStrcmp(SQLState, "IM001")) return(DB_ERR_UNSUPPORTED_FUNCTION); - if (!strcmp(SQLState, "IM002")) + if (!wxStrcmp(SQLState, "IM002")) return(DB_ERR_NO_DATA_SOURCE); - if (!strcmp(SQLState, "IM003")) + if (!wxStrcmp(SQLState, "IM003")) return(DB_ERR_DRIVER_LOAD_ERROR); - if (!strcmp(SQLState, "IM004")) + if (!wxStrcmp(SQLState, "IM004")) return(DB_ERR_SQLALLOCENV_FAILED); - if (!strcmp(SQLState, "IM005")) + if (!wxStrcmp(SQLState, "IM005")) return(DB_ERR_SQLALLOCCONNECT_FAILED); - if (!strcmp(SQLState, "IM006")) + if (!wxStrcmp(SQLState, "IM006")) return(DB_ERR_SQLSETCONNECTOPTION_FAILED); - if (!strcmp(SQLState, "IM007")) + if (!wxStrcmp(SQLState, "IM007")) return(DB_ERR_NO_DATA_SOURCE_DLG_PROHIB); - if (!strcmp(SQLState, "IM008")) + if (!wxStrcmp(SQLState, "IM008")) return(DB_ERR_DIALOG_FAILED); - if (!strcmp(SQLState, "IM009")) + if (!wxStrcmp(SQLState, "IM009")) return(DB_ERR_UNABLE_TO_LOAD_TRANSLATION_DLL); - if (!strcmp(SQLState, "IM010")) + if (!wxStrcmp(SQLState, "IM010")) return(DB_ERR_DATA_SOURCE_NAME_TOO_LONG); - if (!strcmp(SQLState, "IM011")) + if (!wxStrcmp(SQLState, "IM011")) return(DB_ERR_DRIVER_NAME_TOO_LONG); - if (!strcmp(SQLState, "IM012")) + if (!wxStrcmp(SQLState, "IM012")) return(DB_ERR_DRIVER_KEYWORD_SYNTAX_ERROR); - if (!strcmp(SQLState, "IM013")) + if (!wxStrcmp(SQLState, "IM013")) return(DB_ERR_TRACE_FILE_ERROR); - if (!strcmp(SQLState, "S0001")) + if (!wxStrcmp(SQLState, "S0001")) return(DB_ERR_TABLE_OR_VIEW_ALREADY_EXISTS); - if (!strcmp(SQLState, "S0002")) + if (!wxStrcmp(SQLState, "S0002")) return(DB_ERR_TABLE_NOT_FOUND); - if (!strcmp(SQLState, "S0011")) + if (!wxStrcmp(SQLState, "S0011")) return(DB_ERR_INDEX_ALREADY_EXISTS); - if (!strcmp(SQLState, "S0012")) + if (!wxStrcmp(SQLState, "S0012")) return(DB_ERR_INDEX_NOT_FOUND); - if (!strcmp(SQLState, "S0021")) + if (!wxStrcmp(SQLState, "S0021")) return(DB_ERR_COLUMN_ALREADY_EXISTS); - if (!strcmp(SQLState, "S0022")) + if (!wxStrcmp(SQLState, "S0022")) return(DB_ERR_COLUMN_NOT_FOUND); - if (!strcmp(SQLState, "S0023")) + if (!wxStrcmp(SQLState, "S0023")) return(DB_ERR_NO_DEFAULT_FOR_COLUMN); - if (!strcmp(SQLState, "S1000")) + if (!wxStrcmp(SQLState, "S1000")) return(DB_ERR_GENERAL_ERROR); - if (!strcmp(SQLState, "S1001")) + if (!wxStrcmp(SQLState, "S1001")) return(DB_ERR_MEMORY_ALLOCATION_FAILURE); - if (!strcmp(SQLState, "S1002")) + if (!wxStrcmp(SQLState, "S1002")) return(DB_ERR_INVALID_COLUMN_NUMBER); - if (!strcmp(SQLState, "S1003")) + if (!wxStrcmp(SQLState, "S1003")) return(DB_ERR_PROGRAM_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1004")) + if (!wxStrcmp(SQLState, "S1004")) return(DB_ERR_SQL_DATA_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1008")) + if (!wxStrcmp(SQLState, "S1008")) return(DB_ERR_OPERATION_CANCELLED); - if (!strcmp(SQLState, "S1009")) + if (!wxStrcmp(SQLState, "S1009")) return(DB_ERR_INVALID_ARGUMENT_VALUE); - if (!strcmp(SQLState, "S1010")) + if (!wxStrcmp(SQLState, "S1010")) return(DB_ERR_FUNCTION_SEQUENCE_ERROR); - if (!strcmp(SQLState, "S1011")) + if (!wxStrcmp(SQLState, "S1011")) return(DB_ERR_OPERATION_INVALID_AT_THIS_TIME); - if (!strcmp(SQLState, "S1012")) + if (!wxStrcmp(SQLState, "S1012")) return(DB_ERR_INVALID_TRANS_OPERATION_CODE); - if (!strcmp(SQLState, "S1015")) + if (!wxStrcmp(SQLState, "S1015")) return(DB_ERR_NO_CURSOR_NAME_AVAIL); - if (!strcmp(SQLState, "S1090")) + if (!wxStrcmp(SQLState, "S1090")) return(DB_ERR_INVALID_STR_OR_BUF_LEN); - if (!strcmp(SQLState, "S1091")) + if (!wxStrcmp(SQLState, "S1091")) return(DB_ERR_DESCRIPTOR_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1092")) + if (!wxStrcmp(SQLState, "S1092")) return(DB_ERR_OPTION_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1093")) + if (!wxStrcmp(SQLState, "S1093")) return(DB_ERR_INVALID_PARAM_NO); - if (!strcmp(SQLState, "S1094")) + if (!wxStrcmp(SQLState, "S1094")) return(DB_ERR_INVALID_SCALE_VALUE); - if (!strcmp(SQLState, "S1095")) + if (!wxStrcmp(SQLState, "S1095")) return(DB_ERR_FUNCTION_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1096")) + if (!wxStrcmp(SQLState, "S1096")) return(DB_ERR_INF_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1097")) + if (!wxStrcmp(SQLState, "S1097")) return(DB_ERR_COLUMN_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1098")) + if (!wxStrcmp(SQLState, "S1098")) return(DB_ERR_SCOPE_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1099")) + if (!wxStrcmp(SQLState, "S1099")) return(DB_ERR_NULLABLE_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1100")) + if (!wxStrcmp(SQLState, "S1100")) return(DB_ERR_UNIQUENESS_OPTION_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1101")) + if (!wxStrcmp(SQLState, "S1101")) return(DB_ERR_ACCURACY_OPTION_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1103")) + if (!wxStrcmp(SQLState, "S1103")) return(DB_ERR_DIRECTION_OPTION_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1104")) + if (!wxStrcmp(SQLState, "S1104")) return(DB_ERR_INVALID_PRECISION_VALUE); - if (!strcmp(SQLState, "S1105")) + if (!wxStrcmp(SQLState, "S1105")) return(DB_ERR_INVALID_PARAM_TYPE); - if (!strcmp(SQLState, "S1106")) + if (!wxStrcmp(SQLState, "S1106")) return(DB_ERR_FETCH_TYPE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1107")) + if (!wxStrcmp(SQLState, "S1107")) return(DB_ERR_ROW_VALUE_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1108")) + if (!wxStrcmp(SQLState, "S1108")) return(DB_ERR_CONCURRENCY_OPTION_OUT_OF_RANGE); - if (!strcmp(SQLState, "S1109")) + if (!wxStrcmp(SQLState, "S1109")) return(DB_ERR_INVALID_CURSOR_POSITION); - if (!strcmp(SQLState, "S1110")) + if (!wxStrcmp(SQLState, "S1110")) return(DB_ERR_INVALID_DRIVER_COMPLETION); - if (!strcmp(SQLState, "S1111")) + if (!wxStrcmp(SQLState, "S1111")) return(DB_ERR_INVALID_BOOKMARK_VALUE); - if (!strcmp(SQLState, "S1C00")) + if (!wxStrcmp(SQLState, "S1C00")) return(DB_ERR_DRIVER_NOT_CAPABLE); - if (!strcmp(SQLState, "S1T00")) + if (!wxStrcmp(SQLState, "S1T00")) return(DB_ERR_TIMEOUT_EXPIRED); // No match @@ -966,46 +1089,46 @@ int wxDB::TranslateSqlState(char *SQLState) } // wxDB::TranslateSqlState() /********** wxDB::Grant() **********/ -bool wxDB::Grant(int privileges, char *tableName, char *userList) +bool wxDB::Grant(int privileges, const char *tableName, const char *userList) { char sqlStmt[DB_MAX_STATEMENT_LEN]; // Build the grant statement - strcpy(sqlStmt, "GRANT "); + wxStrcpy(sqlStmt, "GRANT "); if (privileges == DB_GRANT_ALL) - strcat(sqlStmt, "ALL"); + wxStrcat(sqlStmt, "ALL"); else { int c = 0; if (privileges & DB_GRANT_SELECT) { - strcat(sqlStmt, "SELECT"); + wxStrcat(sqlStmt, "SELECT"); c++; } if (privileges & DB_GRANT_INSERT) { if (c++) - strcat(sqlStmt, ", "); - strcat(sqlStmt, "INSERT"); + wxStrcat(sqlStmt, ", "); + wxStrcat(sqlStmt, "INSERT"); } if (privileges & DB_GRANT_UPDATE) { if (c++) - strcat(sqlStmt, ", "); - strcat(sqlStmt, "UPDATE"); + wxStrcat(sqlStmt, ", "); + wxStrcat(sqlStmt, "UPDATE"); } if (privileges & DB_GRANT_DELETE) { if (c++) - strcat(sqlStmt, ", "); - strcat(sqlStmt, "DELETE"); + wxStrcat(sqlStmt, ", "); + wxStrcat(sqlStmt, "DELETE"); } } - strcat(sqlStmt, " ON "); - strcat(sqlStmt, tableName); - strcat(sqlStmt, " TO "); - strcat(sqlStmt, userList); + wxStrcat(sqlStmt, " ON "); + wxStrcat(sqlStmt, tableName); + wxStrcat(sqlStmt, " TO "); + wxStrcat(sqlStmt, userList); #ifdef DBDEBUG_CONSOLE cout << endl << sqlStmt << endl; @@ -1018,47 +1141,27 @@ bool wxDB::Grant(int privileges, char *tableName, char *userList) } // wxDB::Grant() /********** wxDB::CreateView() **********/ -bool wxDB::CreateView(char *viewName, char *colList, char *pSqlStmt) +bool wxDB::CreateView(const char *viewName, const char *colList, const char *pSqlStmt, bool attemptDrop) { char sqlStmt[DB_MAX_STATEMENT_LEN]; // Drop the view first - sprintf(sqlStmt, "DROP VIEW %s", viewName); - if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS) - { - // Check for sqlState = S0002, "Table or view not found". - // Ignore this error, bomb out on any other error. - // SQL Sybase Anwhere v5.5 returns an access violation error here - // (sqlstate = 42000) rather than an S0002. - GetNextError(henv, hdbc, hstmt); - if (strcmp(sqlState, "S0002") && strcmp(sqlState, "42000")) - { - DispNextError(); - DispAllErrors(henv, hdbc, hstmt); - RollbackTrans(); - return(FALSE); - } - } - - WriteSqlLog(sqlStmt); - -#ifdef DBDEBUG_CONSOLE - cout << endl << sqlStmt << endl; -#endif + if (attemptDrop && !DropView(viewName)) + return FALSE; // Build the create view statement - strcpy(sqlStmt, "CREATE VIEW "); - strcat(sqlStmt, viewName); + wxStrcpy(sqlStmt, "CREATE VIEW "); + wxStrcat(sqlStmt, viewName); - if (strlen(colList)) + if (wxStrlen(colList)) { - strcat(sqlStmt, " ("); - strcat(sqlStmt, colList); - strcat(sqlStmt, ")"); + wxStrcat(sqlStmt, " ("); + wxStrcat(sqlStmt, colList); + wxStrcat(sqlStmt, ")"); } - strcat(sqlStmt, " AS "); - strcat(sqlStmt, pSqlStmt); + wxStrcat(sqlStmt, " AS "); + wxStrcat(sqlStmt, pSqlStmt); WriteSqlLog(sqlStmt); @@ -1070,9 +1173,54 @@ bool wxDB::CreateView(char *viewName, char *colList, char *pSqlStmt) } // wxDB::CreateView() +/********** wxDB::DropView() **********/ +bool wxDB::DropView(const char *viewName) +{ + // NOTE: This function returns TRUE if the View does not exist, but + // only for identified databases. Code will need to be added + // below for any other databases when those databases are defined + // to handle this situation consistently + + char sqlStmt[DB_MAX_STATEMENT_LEN]; + + sprintf(sqlStmt, "DROP VIEW %s", viewName); + + WriteSqlLog(sqlStmt); + +#ifdef DBDEBUG_CONSOLE + cout << endl << sqlStmt << endl; +#endif + + if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS) + { + // Check for "Base table not found" error and ignore + GetNextError(henv, hdbc, hstmt); + if (wxStrcmp(sqlState,"S0002")) // "Base table not found" + { + // Check for product specific error codes + if (!((Dbms() == dbmsSYBASE_ASA && !wxStrcmp(sqlState,"42000")))) // 5.x (and lower?) + { + DispNextError(); + DispAllErrors(henv, hdbc, hstmt); + RollbackTrans(); + return(FALSE); + } + } + } + + // Commit the transaction + if (! CommitTrans()) + return(FALSE); + + return TRUE; + +} // wxDB::DropView() + + /********** wxDB::ExecSql() **********/ -bool wxDB::ExecSql(char *pSqlStmt) +bool wxDB::ExecSql(const char *pSqlStmt) { + SQLFreeStmt(hstmt, SQL_CLOSE); if (SQLExecDirect(hstmt, (UCHAR FAR *) pSqlStmt, SQL_NTS) == SQL_SUCCESS) return(TRUE); else @@ -1083,6 +1231,35 @@ bool wxDB::ExecSql(char *pSqlStmt) } // wxDB::ExecSql() +/********** wxDB::GetNext() **********/ +bool wxDB::GetNext(void) +{ + if (SQLFetch(hstmt) == SQL_SUCCESS) + return(TRUE); + else + { + DispAllErrors(henv, hdbc, hstmt); + return(FALSE); + } + +} // wxDB::GetNext() + +/********** wxDB::GetData() **********/ +bool wxDB::GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SDWORD FAR *cbReturned) +{ + assert(pData); + assert(cbReturned); + + if (SQLGetData(hstmt, colNo, cType, pData, maxLen, cbReturned) == SQL_SUCCESS) + return(TRUE); + else + { + DispAllErrors(henv, hdbc, hstmt); + return(FALSE); + } + +} // wxDB::GetData() + /********** wxDB::GetColumns() **********/ /* * 1) The last array element of the tableName[] argument must be zero (null). @@ -1092,7 +1269,7 @@ bool wxDB::ExecSql(char *pSqlStmt) * CALLING FUNCTION IS RESPONSIBLE FOR DELETING THE MEMORY RETURNED WHEN IT * IS FINISHED WITH IT. i.e. * - * CcolInf *colInf = pDb->GetColumns(tableList); + * CcolInf *colInf = pDb->GetColumns(tableList, userID); * if (colInf) * { * // Use the column inf @@ -1101,21 +1278,40 @@ bool wxDB::ExecSql(char *pSqlStmt) * delete [] colInf; * } */ -CcolInf *wxDB::GetColumns(char *tableName[]) +CcolInf *wxDB::GetColumns(char *tableName[], const char *userID) { - UINT noCols = 0; - UINT colNo = 0; + UINT noCols = 0; + UINT colNo = 0; CcolInf *colInf = 0; - RETCODE retcode; - SDWORD cb; - char tblName[DB_MAX_TABLE_NAME_LEN+1]; - char colName[DB_MAX_COLUMN_NAME_LEN+1]; - SWORD sqlDataType; + + RETCODE retcode; + SDWORD cb; + char tblName[DB_MAX_TABLE_NAME_LEN+1]; + char colName[DB_MAX_COLUMN_NAME_LEN+1]; + SWORD sqlDataType; + + wxString UserID; + wxString TableName; + + if (!userID || !wxStrlen(userID)) + UserID = uid; + else + UserID = userID; + + // dBase does not use user names, and some drivers fail if you try to pass one + if (Dbms() == dbmsDBASE) + UserID = ""; + + // Oracle user names may only be in uppercase, so force + // the name to uppercase + if (Dbms() == dbmsORACLE) + UserID = UserID.Upper(); // Pass 1 - Determine how many columns there are. // Pass 2 - Allocate the CcolInf array and fill in // the array with the column information. - for (int pass = 1; pass <= 2; pass++) + int pass; + for (pass = 1; pass <= 2; pass++) { if (pass == 2) { @@ -1126,28 +1322,53 @@ CcolInf *wxDB::GetColumns(char *tableName[]) if (!colInf) break; // Mark the end of the array - strcpy(colInf[noCols].tableName, ""); - strcpy(colInf[noCols].colName, ""); + wxStrcpy(colInf[noCols].tableName, ""); + wxStrcpy(colInf[noCols].colName, ""); colInf[noCols].sqlDataType = 0; } // Loop through each table name - for (int tbl = 0; tableName[tbl]; tbl++) + int tbl; + for (tbl = 0; tableName[tbl]; tbl++) { + TableName = tableName[tbl]; + // Oracle table names are uppercase only, so force + // the name to uppercase just in case programmer forgot to do this + if (Dbms() == dbmsORACLE) + TableName = TableName.Upper(); + SQLFreeStmt(hstmt, SQL_CLOSE); - retcode = SQLColumns(hstmt, - NULL, 0, // All qualifiers - NULL, 0, // All owners - (UCHAR *) tableName[tbl], SQL_NTS, - NULL, 0); // All columns + + // MySQL and Access cannot accept a user name when looking up column names, so we + // use the call below that leaves out the user name + if (wxStrcmp(UserID.GetData(),"") && + Dbms() != dbmsMY_SQL && + Dbms() != dbmsACCESS) + { + retcode = SQLColumns(hstmt, + NULL, 0, // All qualifiers + (UCHAR *) UserID.GetData(), SQL_NTS, // Owner + (UCHAR *) TableName.GetData(), SQL_NTS, + NULL, 0); // All columns + } + else + { + retcode = SQLColumns(hstmt, + NULL, 0, // All qualifiers + NULL, 0, // Owner + (UCHAR *) TableName.GetData(), SQL_NTS, + NULL, 0); // All columns + } if (retcode != SQL_SUCCESS) { // Error occured, abort DispAllErrors(henv, hdbc, hstmt); if (colInf) delete [] colInf; + SQLFreeStmt(hstmt, SQL_UNBIND); + SQLFreeStmt(hstmt, SQL_CLOSE); return(0); } - SQLBindCol(hstmt, 3, SQL_C_CHAR, (UCHAR*) tblName, DB_MAX_TABLE_NAME_LEN+1, &cb); - SQLBindCol(hstmt, 4, SQL_C_CHAR, (UCHAR*) colName, DB_MAX_COLUMN_NAME_LEN+1, &cb); + SQLBindCol(hstmt, 3, SQL_C_CHAR, (UCHAR*) tblName, DB_MAX_TABLE_NAME_LEN+1, &cb); + SQLBindCol(hstmt, 4, SQL_C_CHAR, (UCHAR*) colName, DB_MAX_COLUMN_NAME_LEN+1, &cb); SQLBindCol(hstmt, 5, SQL_C_SSHORT, (UCHAR*) &sqlDataType, 0, &cb); while ((retcode = SQLFetch(hstmt)) == SQL_SUCCESS) { @@ -1157,8 +1378,8 @@ CcolInf *wxDB::GetColumns(char *tableName[]) { if (colNo < noCols) // Some extra error checking to prevent memory overwrites { - strcpy(colInf[colNo].tableName, tblName); - strcpy(colInf[colNo].colName, colName); + wxStrcpy(colInf[colNo].tableName, tblName); + wxStrcpy(colInf[colNo].colName, colName); colInf[colNo].sqlDataType = sqlDataType; colNo++; } @@ -1169,11 +1390,14 @@ CcolInf *wxDB::GetColumns(char *tableName[]) DispAllErrors(henv, hdbc, hstmt); if (colInf) delete [] colInf; + SQLFreeStmt(hstmt, SQL_UNBIND); + SQLFreeStmt(hstmt, SQL_CLOSE); return(0); } } } + SQLFreeStmt(hstmt, SQL_UNBIND); SQLFreeStmt(hstmt, SQL_CLOSE); return colInf; @@ -1181,10 +1405,9 @@ CcolInf *wxDB::GetColumns(char *tableName[]) /********** wxDB::Catalog() **********/ -bool wxDB::Catalog(char *userID, char *fileName) +bool wxDB::Catalog(const char *userID, const char *fileName) { - assert(userID && strlen(userID)); - assert(fileName && strlen(fileName)); + assert(fileName && wxStrlen(fileName)); RETCODE retcode; SDWORD cb; @@ -1192,26 +1415,43 @@ bool wxDB::Catalog(char *userID, char *fileName) char tblNameSave[DB_MAX_TABLE_NAME_LEN+1]; char colName[DB_MAX_COLUMN_NAME_LEN+1]; SWORD sqlDataType; - char typeName[16]; + char typeName[30+1]; SWORD precision, length; + wxString UserID; + FILE *fp = fopen(fileName,"wt"); if (fp == NULL) return(FALSE); SQLFreeStmt(hstmt, SQL_CLOSE); - int i = 0; - char userIdUC[81]; - for (char *p = userID; *p; p++) - userIdUC[i++] = toupper(*p); - userIdUC[i] = 0; - - retcode = SQLColumns(hstmt, - NULL, 0, // All qualifiers - (UCHAR *) userIdUC, SQL_NTS, // User specified - NULL, 0, // All tables - NULL, 0); // All columns + if (!userID || !wxStrlen(userID)) + UserID = uid; + else + UserID = userID; + + // Oracle user names may only be in uppercase, so force + // the name to uppercase + if (Dbms() == dbmsORACLE) + UserID = UserID.Upper(); + + if (wxStrcmp(UserID.GetData(),"")) + { + retcode = SQLColumns(hstmt, + NULL, 0, // All qualifiers + (UCHAR *) UserID.GetData(), SQL_NTS, // User specified + NULL, 0, // All tables + NULL, 0); // All columns + } + else + { + retcode = SQLColumns(hstmt, + NULL, 0, // All qualifiers + NULL, 0, // User specified + NULL, 0, // All tables + NULL, 0); // All columns + } if (retcode != SQL_SUCCESS) { DispAllErrors(henv, hdbc, hstmt); @@ -1219,20 +1459,20 @@ bool wxDB::Catalog(char *userID, char *fileName) return(FALSE); } - SQLBindCol(hstmt, 3, SQL_C_CHAR, (UCHAR*) tblName, DB_MAX_TABLE_NAME_LEN+1, &cb); - SQLBindCol(hstmt, 4, SQL_C_CHAR, (UCHAR*) colName, DB_MAX_COLUMN_NAME_LEN+1, &cb); + SQLBindCol(hstmt, 3, SQL_C_CHAR, (UCHAR*) tblName, DB_MAX_TABLE_NAME_LEN+1, &cb); + SQLBindCol(hstmt, 4, SQL_C_CHAR, (UCHAR*) colName, DB_MAX_COLUMN_NAME_LEN+1, &cb); SQLBindCol(hstmt, 5, SQL_C_SSHORT, (UCHAR*) &sqlDataType, 0, &cb); - SQLBindCol(hstmt, 6, SQL_C_CHAR, (UCHAR*) typeName, 16, &cb); + SQLBindCol(hstmt, 6, SQL_C_CHAR, (UCHAR*) typeName, sizeof(typeName), &cb); SQLBindCol(hstmt, 7, SQL_C_SSHORT, (UCHAR*) &precision, 0, &cb); SQLBindCol(hstmt, 8, SQL_C_SSHORT, (UCHAR*) &length, 0, &cb); char outStr[256]; - strcpy(tblNameSave,""); + wxStrcpy(tblNameSave,""); int cnt = 0; while ((retcode = SQLFetch(hstmt)) == SQL_SUCCESS) { - if (strcmp(tblName,tblNameSave)) + if (wxStrcmp(tblName,tblNameSave)) { if (cnt) fputs("\n", fp); @@ -1249,12 +1489,14 @@ bool wxDB::Catalog(char *userID, char *fileName) fputs("===================== ", fp); fputs("========= ", fp); fputs("=========\n", fp); - strcpy(tblNameSave,tblName); + wxStrcpy(tblNameSave,tblName); } sprintf(outStr, "%-32s %-32s (%04d)%-15s %9d %9d\n", tblName, colName, sqlDataType, typeName, precision, length); if (fputs(outStr, fp) == EOF) { + SQLFreeStmt(hstmt, SQL_UNBIND); + SQLFreeStmt(hstmt, SQL_CLOSE); fclose(fp); return(FALSE); } @@ -1262,15 +1504,13 @@ bool wxDB::Catalog(char *userID, char *fileName) } if (retcode != SQL_NO_DATA_FOUND) - { DispAllErrors(henv, hdbc, hstmt); - fclose(fp); - return(FALSE); - } + SQLFreeStmt(hstmt, SQL_UNBIND); SQLFreeStmt(hstmt, SQL_CLOSE); + fclose(fp); - return(TRUE); + return(retcode == SQL_NO_DATA_FOUND); } // wxDB::Catalog() @@ -1279,20 +1519,70 @@ bool wxDB::Catalog(char *userID, char *fileName) // if the object exists in the database. This function does not indicate // whether or not the user has privleges to query or perform other functions // on the table. -bool wxDB::TableExists(char *tableName) +bool wxDB::TableExists(const char *tableName, const char *userID, const char *tablePath) { - assert(tableName && strlen(tableName)); + wxString UserID; + wxString TableName; + + assert(tableName && wxStrlen(tableName)); + + if (Dbms() == dbmsDBASE) + { + wxString dbName; + if (tablePath && wxStrlen(tablePath)) + dbName.sprintf("%s/%s.dbf",tablePath,tableName); + else + dbName.sprintf("%s.dbf",tableName); + + bool exists; + exists = wxFileExists(dbName.GetData()); + return exists; + } + + if (!userID || !wxStrlen(userID)) + UserID = uid; + else + UserID = userID; + + // Oracle user names may only be in uppercase, so force + // the name to uppercase + if (Dbms() == dbmsORACLE) + UserID = UserID.Upper(); + + TableName = tableName; + // Oracle table names are uppercase only, so force + // the name to uppercase just in case programmer forgot to do this + if (Dbms() == dbmsORACLE) + TableName = TableName.Upper(); SQLFreeStmt(hstmt, SQL_CLOSE); - RETCODE retcode = SQLTables(hstmt, - NULL, 0, // All qualifiers - NULL, 0, // All owners - (UCHAR FAR *)tableName, SQL_NTS, - NULL, 0); // All table types + RETCODE retcode; + + // MySQL and Access cannot accept a user name when looking up table names, so we + // use the call below that leaves out the user name + if (wxStrcmp(UserID,"") && + Dbms() != dbmsMY_SQL && + Dbms() != dbmsACCESS) + { + retcode = SQLTables(hstmt, + NULL, 0, // All qualifiers + (UCHAR *) UserID.GetData(), SQL_NTS, // All owners + (UCHAR FAR *)TableName.GetData(), SQL_NTS, + NULL, 0); // All table types + } + else + { + retcode = SQLTables(hstmt, + NULL, 0, // All qualifiers + NULL, 0, // All owners + (UCHAR FAR *)TableName.GetData(), SQL_NTS, + NULL, 0); // All table types + } if (retcode != SQL_SUCCESS) return(DispAllErrors(henv, hdbc, hstmt)); - if (SQLFetch(hstmt) != SQL_SUCCESS) + retcode = SQLFetch(hstmt); + if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) { SQLFreeStmt(hstmt, SQL_CLOSE); return(DispAllErrors(henv, hdbc, hstmt)); @@ -1305,7 +1595,7 @@ bool wxDB::TableExists(char *tableName) /********** wxDB::SqlLog() **********/ -bool wxDB::SqlLog(enum sqlLog state, char *filename, bool append) +bool wxDB::SqlLog(enum sqlLog state, const char *filename, bool append) { assert(state == sqlLogON || state == sqlLogOFF); assert(state == sqlLogOFF || filename); @@ -1336,7 +1626,7 @@ bool wxDB::SqlLog(enum sqlLog state, char *filename, bool append) /********** wxDB::WriteSqlLog() **********/ -bool wxDB::WriteSqlLog(char *logMsg) +bool wxDB::WriteSqlLog(const char *logMsg) { assert(logMsg); @@ -1352,8 +1642,88 @@ bool wxDB::WriteSqlLog(char *logMsg) } // wxDB::WriteSqlLog() +/********** wxDB::Dbms() **********/ +/* + * Be aware that not all database engines use the exact same syntax, and not + * every ODBC compliant database is compliant to the same level of compliancy. + * Some manufacturers support the minimum Level 1 compliancy, and others up + * through Level 3. Others support subsets of features for levels above 1. + * + * If you find an inconsistency between the wxDB class and a specific database + * engine, and an identifier to this section, and special handle the database in + * the area where behavior is non-conforming with the other databases. + * + * + * NOTES ABOUT ISSUES SPECIFIC TO EACH DATABASE ENGINE + * --------------------------------------------------- + * + * ORACLE + * - Currently the only database supported by the class to support VIEWS + * + * DBASE + * - Does not support the SQL_TIMESTAMP structure + * - Supports only one cursor and one connect (apparently? with Microsoft driver only?) + * - Does not automatically create the primary index if the 'keyField' param of SetColDef + * is TRUE. The user must create ALL indexes from their program. + * - Table names can only be 8 characters long + * - Column names can only be 10 characters long + * + * SYBASE (all) + * - To lock a record during QUERY functions, the reserved word 'HOLDLOCK' must be added + * after every table name involved in the query/join if that tables matching record(s) + * are to be locked + * - Ignores the keywords 'FOR UPDATE'. Use the HOLDLOCK functionality described above + * + * SYBASE (Enterprise) + * - If a column is part of the Primary Key, the column cannot be NULL + * + * MY_SQL + * - If a column is part of the Primary Key, the column cannot be NULL + * - Cannot support selecting for update [::CanSelectForUpdate()]. Always returns FALSE + * + * POSTGRES + * - Does not support the keywords 'ASC' or 'DESC' as of release v6.5.0 + * + * + */ +DBMS wxDB::Dbms(void) +{ + wxChar baseName[25+1]; + + wxStrncpy(baseName,dbInf.dbmsName,25); + if (!wxStricmp(dbInf.dbmsName,"Adaptive Server Anywhere")) + return(dbmsSYBASE_ASA); + if (!wxStricmp(dbInf.dbmsName,"SQL Server")) // Sybase Adaptive Server + return(dbmsSYBASE_ASE); + if (!wxStricmp(dbInf.dbmsName,"Microsoft SQL Server")) + return(dbmsMS_SQL_SERVER); + if (!wxStricmp(dbInf.dbmsName,"MySQL")) + return(dbmsMY_SQL); + if (!wxStricmp(dbInf.dbmsName,"PostgreSQL")) // v6.5.0 + return(dbmsPOSTGRES); + + baseName[8] = 0; + if (!wxStricmp(baseName,"Informix")) + return(dbmsINFORMIX); + + baseName[6] = 0; + if (!wxStricmp(baseName,"Oracle")) + return(dbmsORACLE); + if (!wxStricmp(dbInf.dbmsName,"ACCESS")) + return(dbmsACCESS); + if (!wxStricmp(dbInf.dbmsName,"MySQL")) + return(dbmsMY_SQL); + + baseName[5] = 0; + if (!wxStricmp(baseName,"DBASE")) + return(dbmsDBASE); + + return(dbmsUNIDENTIFIED); +} // wxDB::Dbms() + + /********** GetDbConnection() **********/ -wxDB* WXDLLEXPORT GetDbConnection(DbStuff *pDbStuff) +wxDB WXDLLEXPORT *GetDbConnection(DbStuff *pDbStuff, bool FwdOnlyCursors) { DbList *pList; @@ -1363,7 +1733,7 @@ wxDB* WXDLLEXPORT GetDbConnection(DbStuff *pDbStuff) { // The database connection must be for the same datasource // name and must currently not be in use. - if (pList->Free && (! strcmp(pDbStuff->Dsn, pList->Dsn))) // Found a free connection + if (pList->Free && (! wxStrcmp(pDbStuff->Dsn, pList->Dsn))) // Found a free connection { pList->Free = FALSE; return(pList->PtrDb); @@ -1391,12 +1761,15 @@ wxDB* WXDLLEXPORT GetDbConnection(DbStuff *pDbStuff) // Initialize new node in the linked list pList->PtrNext = 0; pList->Free = FALSE; - strcpy(pList->Dsn, pDbStuff->Dsn); - pList->PtrDb = new wxDB(pDbStuff->Henv); + wxStrcpy(pList->Dsn, pDbStuff->Dsn); + pList->PtrDb = new wxDB(pDbStuff->Henv,FwdOnlyCursors); // Connect to the datasource if (pList->PtrDb->Open(pDbStuff->Dsn, pDbStuff->Uid, pDbStuff->AuthStr)) + { + pList->PtrDb->SqlLog(SQLLOGstate,SQLLOGfn,TRUE); return(pList->PtrDb); + } else // Unable to connect, destroy list item { if (pList->PtrPrev) @@ -1466,8 +1839,28 @@ int WXDLLEXPORT NumberDbConnectionsInUse(void) } // NumberDbConnectionsInUse() +/********** SqlLog() **********/ +bool SqlLog(enum sqlLog state, char *filename) +{ + bool append = FALSE; + DbList *pList; + + for (pList = PtrBegDbList; pList; pList = pList->PtrNext) + { + if (!pList->PtrDb->SqlLog(state,filename,append)) + return(FALSE); + append = TRUE; + } + + SQLLOGstate = state; + wxStrcpy(SQLLOGfn,filename); + + return(TRUE); + +} // SqlLog() + /********** GetDataSource() **********/ -bool GetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDescMax, +bool GetDataSource(HENV henv, const char *Dsn, SWORD DsnMax, const char *DsDesc, SWORD DsDescMax, UWORD direction) { SWORD cb;