[wxWidgets.git] / include / wx / db.h

///////////////////////////////////////////////////////////////////////////////
// Name:        db.h
// Purpose:     Header file wxDB class.  The wxDB class represents a connection
//              to an ODBC data source.  The wxDB class allows operations on the data
//              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
// 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,
//              modification, enhancement, debugging under the following conditions:
//              1) These classes may only be used as part of the implementation of a
//                 wxWindows-based application
//              2) All enhancements and bug fixes are to be submitted back to the wxWindows
//                 user groups free of all charges for use with the wxWindows library.
//              3) These classes may not be distributed as part of any other class library,
//                 DLL, text (written or electronic), other than a complete distribution of
//                 the wxWindows GUI development toolkit.
//
///////////////////////////////////////////////////////////////////////////////

/*
// SYNOPSIS START
// SYNOPSIS STOP
*/

#ifndef DB_DOT_H
#define DB_DOT_H
 
#ifdef __GNUG__
#pragma interface "db.h"
#endif

#if defined(__WXMSW__) || defined(WIN32)
#include <windows.h>
#endif


#ifdef __WXGTK__

extern "C" {
#include <../iodbc/isql.h>
#include <../iodbc/isqlext.h>
#include <../iodbc/odbc_funcs.h>
#include <../iodbc/odbc_types.h>

typedef float   SFLOAT;
typedef double  SDOUBLE;
#define ULONG UDWORD

}

#else

#define ODBCVER 0x0250
#include <sql.h>
#include <sqlext.h>

#endif

enum		enumDummy		{enumDum1};

#define SQL_C_BOOLEAN (sizeof(int) == 2 ? SQL_C_USHORT : SQL_C_ULONG)
#define SQL_C_ENUM (sizeof(enumDummy) == 2 ? SQL_C_USHORT : SQL_C_ULONG)    //glt 2-21-97

// Database Globals
const int DB_TYPE_NAME_LEN						= 40;
const int DB_MAX_STATEMENT_LEN					= 2048;
const int DB_MAX_WHERE_CLAUSE_LEN				= 1024;
const int DB_MAX_ERROR_MSG_LEN					= 512;
const int DB_MAX_ERROR_HISTORY					= 5;
const int DB_MAX_TABLE_NAME_LEN				= 128;
const int DB_MAX_COLUMN_NAME_LEN				= 128;

const int DB_DATA_TYPE_VARCHAR					= 1;
const int DB_DATA_TYPE_INTEGER					= 2;
const int DB_DATA_TYPE_FLOAT					= 3;
const int DB_DATA_TYPE_DATE						= 4;

const int DB_SELECT_KEYFIELDS					= 1;
const int DB_SELECT_WHERE						= 2;
const int DB_SELECT_MATCHING					= 3;
const int DB_SELECT_STATEMENT					= 4;

const int DB_UPD_KEYFIELDS						= 1;
const int DB_UPD_WHERE							= 2;

const int DB_DEL_KEYFIELDS						= 1;
const int DB_DEL_WHERE							= 2;
const int DB_DEL_MATCHING						= 3;

const int DB_WHERE_KEYFIELDS					= 1;
const int DB_WHERE_MATCHING						= 2;

const int DB_CURSOR0								= 0;
const int DB_CURSOR1								= 1;
const int DB_CURSOR2								= 2;
//const int DB_CURSOR3							= 3;
//const int DB_CURSOR4							= 4;
//const int DB_CURSOR5							= 5;

const int DB_GRANT_SELECT						= 1;
const int DB_GRANT_INSERT						= 2;
const int DB_GRANT_UPDATE						= 4;
const int DB_GRANT_DELETE						= 8;
const int DB_GRANT_ALL							= DB_GRANT_SELECT | DB_GRANT_INSERT | DB_GRANT_UPDATE | DB_GRANT_DELETE;

// ODBC Error codes (derived from ODBC SqlState codes)
enum ODBC_ERRORS
{
	DB_FAILURE									= 0,
	DB_SUCCESS									= 1,
	DB_ERR_NOT_IN_USE,
	DB_ERR_GENERAL_WARNING,									// SqlState = '01000'
	DB_ERR_DISCONNECT_ERROR,								// SqlState = '01002'
	DB_ERR_DATA_TRUNCATED,									// SqlState = '01004'
	DB_ERR_PRIV_NOT_REVOKED,								// SqlState = '01006'
	DB_ERR_INVALID_CONN_STR_ATTR,							// SqlState = '01S00'
	DB_ERR_ERROR_IN_ROW,										// SqlState = '01S01'
	DB_ERR_OPTION_VALUE_CHANGED,							// SqlState = '01S02'
	DB_ERR_NO_ROWS_UPD_OR_DEL,								// SqlState = '01S03'
	DB_ERR_MULTI_ROWS_UPD_OR_DEL,							// SqlState = '01S04'
	DB_ERR_WRONG_NO_OF_PARAMS,								// SqlState = '07001'
	DB_ERR_DATA_TYPE_ATTR_VIOL,							// SqlState = '07006'
	DB_ERR_UNABLE_TO_CONNECT,								// SqlState = '08001'
	DB_ERR_CONNECTION_IN_USE,								// SqlState = '08002'
	DB_ERR_CONNECTION_NOT_OPEN,							// SqlState = '08003'
	DB_ERR_REJECTED_CONNECTION,							// SqlState = '08004'
	DB_ERR_CONN_FAIL_IN_TRANS,								// SqlState = '08007'
	DB_ERR_COMM_LINK_FAILURE,								// SqlState = '08S01'
	DB_ERR_INSERT_VALUE_LIST_MISMATCH,					// SqlState = '21S01'
	DB_ERR_DERIVED_TABLE_MISMATCH,						// SqlState = '21S02'
	DB_ERR_STRING_RIGHT_TRUNC,								// SqlState = '22001'
	DB_ERR_NUMERIC_VALUE_OUT_OF_RNG,						// SqlState = '22003'
	DB_ERR_ERROR_IN_ASSIGNMENT,							// SqlState = '22005'
	DB_ERR_DATETIME_FLD_OVERFLOW,							// SqlState = '22008'
	DB_ERR_DIVIDE_BY_ZERO,									// SqlState = '22012'
	DB_ERR_STR_DATA_LENGTH_MISMATCH,						// SqlState = '22026'
	DB_ERR_INTEGRITY_CONSTRAINT_VIOL,					// SqlState = '23000'
	DB_ERR_INVALID_CURSOR_STATE,							// SqlState = '24000'
	DB_ERR_INVALID_TRANS_STATE,							// SqlState = '25000'
	DB_ERR_INVALID_AUTH_SPEC,								// SqlState = '28000'
	DB_ERR_INVALID_CURSOR_NAME,							// SqlState = '34000'
	DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL,					// SqlState = '37000'
	DB_ERR_DUPLICATE_CURSOR_NAME,							// SqlState = '3C000'
	DB_ERR_SERIALIZATION_FAILURE,							// SqlState = '40001'
	DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL2,				// SqlState = '42000'
	DB_ERR_OPERATION_ABORTED,								// SqlState = '70100'
	DB_ERR_UNSUPPORTED_FUNCTION,							// SqlState = 'IM001'
	DB_ERR_NO_DATA_SOURCE,									// SqlState = 'IM002'
	DB_ERR_DRIVER_LOAD_ERROR,								// SqlState = 'IM003'
	DB_ERR_SQLALLOCENV_FAILED,								// SqlState = 'IM004'
	DB_ERR_SQLALLOCCONNECT_FAILED,						// SqlState = 'IM005'
	DB_ERR_SQLSETCONNECTOPTION_FAILED,					// SqlState = 'IM006'
	DB_ERR_NO_DATA_SOURCE_DLG_PROHIB,					// SqlState = 'IM007'
	DB_ERR_DIALOG_FAILED,									// SqlState = 'IM008'
	DB_ERR_UNABLE_TO_LOAD_TRANSLATION_DLL,				// SqlState = 'IM009'
	DB_ERR_DATA_SOURCE_NAME_TOO_LONG,					// SqlState = 'IM010'
	DB_ERR_DRIVER_NAME_TOO_LONG,							// SqlState = 'IM011'
	DB_ERR_DRIVER_KEYWORD_SYNTAX_ERROR,					// SqlState = 'IM012'
	DB_ERR_TRACE_FILE_ERROR,								// SqlState = 'IM013'
	DB_ERR_TABLE_OR_VIEW_ALREADY_EXISTS,				// SqlState = 'S0001'
	DB_ERR_TABLE_NOT_FOUND,									// SqlState = 'S0002'
	DB_ERR_INDEX_ALREADY_EXISTS,							// SqlState = 'S0011'
	DB_ERR_INDEX_NOT_FOUND,									// SqlState = 'S0012'
	DB_ERR_COLUMN_ALREADY_EXISTS,							// SqlState = 'S0021'
	DB_ERR_COLUMN_NOT_FOUND,								// SqlState = 'S0022'
	DB_ERR_NO_DEFAULT_FOR_COLUMN,							// SqlState = 'S0023'
	DB_ERR_GENERAL_ERROR,									// SqlState = 'S1000'
	DB_ERR_MEMORY_ALLOCATION_FAILURE,					// SqlState = 'S1001'
	DB_ERR_INVALID_COLUMN_NUMBER,							// SqlState = 'S1002'
	DB_ERR_PROGRAM_TYPE_OUT_OF_RANGE,					// SqlState = 'S1003'
	DB_ERR_SQL_DATA_TYPE_OUT_OF_RANGE,					// SqlState = 'S1004'
	DB_ERR_OPERATION_CANCELLED,							// SqlState = 'S1008'
	DB_ERR_INVALID_ARGUMENT_VALUE,						// SqlState = 'S1009'
	DB_ERR_FUNCTION_SEQUENCE_ERROR,						// SqlState = 'S1010'
	DB_ERR_OPERATION_INVALID_AT_THIS_TIME,				// SqlState = 'S1011'
	DB_ERR_INVALID_TRANS_OPERATION_CODE,				// SqlState = 'S1012'
	DB_ERR_NO_CURSOR_NAME_AVAIL,							// SqlState = 'S1015'
	DB_ERR_INVALID_STR_OR_BUF_LEN,						// SqlState = 'S1090'
	DB_ERR_DESCRIPTOR_TYPE_OUT_OF_RANGE,				// SqlState = 'S1091'
	DB_ERR_OPTION_TYPE_OUT_OF_RANGE,						// SqlState = 'S1092'
	DB_ERR_INVALID_PARAM_NO,								// SqlState = 'S1093'
	DB_ERR_INVALID_SCALE_VALUE,							// SqlState = 'S1094'
	DB_ERR_FUNCTION_TYPE_OUT_OF_RANGE,					// SqlState = 'S1095'
	DB_ERR_INF_TYPE_OUT_OF_RANGE,							// SqlState = 'S1096'
	DB_ERR_COLUMN_TYPE_OUT_OF_RANGE,						// SqlState = 'S1097'
	DB_ERR_SCOPE_TYPE_OUT_OF_RANGE,						// SqlState = 'S1098'
	DB_ERR_NULLABLE_TYPE_OUT_OF_RANGE,					// SqlState = 'S1099'
	DB_ERR_UNIQUENESS_OPTION_TYPE_OUT_OF_RANGE,		// SqlState = 'S1100'
	DB_ERR_ACCURACY_OPTION_TYPE_OUT_OF_RANGE,			// SqlState = 'S1101'
	DB_ERR_DIRECTION_OPTION_OUT_OF_RANGE,				// SqlState = 'S1103'
	DB_ERR_INVALID_PRECISION_VALUE,						// SqlState = 'S1104'
	DB_ERR_INVALID_PARAM_TYPE,								// SqlState = 'S1105'
	DB_ERR_FETCH_TYPE_OUT_OF_RANGE,						// SqlState = 'S1106'
	DB_ERR_ROW_VALUE_OUT_OF_RANGE,						// SqlState = 'S1107'
	DB_ERR_CONCURRENCY_OPTION_OUT_OF_RANGE,			// SqlState = 'S1108'
	DB_ERR_INVALID_CURSOR_POSITION,						// SqlState = 'S1109'
	DB_ERR_INVALID_DRIVER_COMPLETION,					// SqlState = 'S1110'
	DB_ERR_INVALID_BOOKMARK_VALUE,						// SqlState = 'S1111'
	DB_ERR_DRIVER_NOT_CAPABLE,								// SqlState = 'S1C00'
	DB_ERR_TIMEOUT_EXPIRED									// SqlState = 'S1T00'
};

struct DbStuff
{
	HENV Henv;
	char Dsn[SQL_MAX_DSN_LENGTH+1];	// Data Source Name
	char Uid[20];							// User ID
	char AuthStr[20];						// Authorization string (password)
};

typedef struct
{
	char	TypeName[DB_TYPE_NAME_LEN];
	int	FsqlType;
	long	Precision;
	short	CaseSensitive;
//	short MinimumScale;
	short MaximumScale;
} SqlTypeInfo;

class CcolInf
{
public:
	char tableName[DB_MAX_TABLE_NAME_LEN+1];
	char colName[DB_MAX_COLUMN_NAME_LEN+1];
	int  sqlDataType;
};

enum sqlLog
{
	sqlLogOFF,
	sqlLogON
};

class wxDB
{
private:

	// Private data
	bool			dbIsOpen;
	char			*dsn;				// Data source name
	char			*uid;				// User ID
	char			*authStr;		// Authorization string (password)
	FILE			*fpSqlLog;		// Sql Log file pointer
	enum sqlLog sqlLogState;	// On or Off

	// Private member functions
	bool getDbInfo(void);
	bool getDataTypeInfo(SWORD fSqlType, SqlTypeInfo &structSQLTypeInfo);
	bool setConnectionOptions(void);
	void logError(char *errMsg, char *SQLState);

public:

	// The following structure contains database information gathered from the
	// datasource when the datasource is first opened.
	struct
	{
		char   dbmsName[40];								// Name of the dbms product
		char   dbmsVer[20];								// Version # of the dbms product
		char   driverName[40];							// Driver name
		char   odbcVer[20];								// ODBC version of the driver
		char   drvMgrOdbcVer[20];						// ODBC version of the driver manager
		char   driverVer[40];							// Driver version
		char   serverName[40];							// Server Name, typically a connect string
		char	 databaseName[128];						// Database filename
		char   outerJoins[2];							// Indicates whether the data source supports outer joins
		char	 procedureSupport[2];					// Indicates whether the data source supports stored procedures
		UWORD  maxConnections;							// Maximum # of connections the data source supports
		UWORD  maxStmts;									// Maximum # of HSTMTs per HDBC
		UWORD  apiConfLvl;								// ODBC API conformance level
		UWORD  cliConfLvl;								// Indicates whether the data source is SAG compliant
		UWORD  sqlConfLvl;								// SQL conformance level
		UWORD  cursorCommitBehavior;					// Indicates how cursors are affected by a db commit
		UWORD  cursorRollbackBehavior;				// Indicates how cursors are affected by a db rollback
		UWORD  supportNotNullClause;					// Indicates if data source supports NOT NULL clause
		char   supportIEF[2];							// Integrity Enhancement Facility (Referential Integrity)
		UDWORD txnIsolation;								// Default transaction isolation level supported by the driver
		UDWORD txnIsolationOptions;					// Transaction isolation level options available
		UDWORD fetchDirections;							// Fetch directions supported
		UDWORD lockTypes;									// Lock types supported in SQLSetPos
		UDWORD posOperations;							// Position operations supported in SQLSetPos
		UDWORD posStmts;									// Position statements supported
		UDWORD scrollConcurrency;						// Concurrency control options supported for scrollable cursors
		UDWORD scrollOptions;							// Scroll Options supported for scrollable cursors
		UDWORD staticSensitivity;						// Indicates if additions, deletions and updates can be detected
		UWORD  txnCapable;								// Indicates if the data source supports transactions
		UDWORD loginTimeout;								// Number seconds to wait for a login request
	} dbInf;

	// ODBC handles
	HENV  henv;		// ODBC Environment handle
	HDBC  hdbc;		// ODBC DB Connection handle
	HSTMT hstmt;	// ODBC Statement handle

	// ODBC Error Inf.
	char   sqlState[20];
	SDWORD nativeError;
	char   errorMsg[SQL_MAX_MESSAGE_LENGTH];
	SWORD  cbErrorMsg;
	char   errorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
	int    DB_STATUS;

	//Error reporting mode
	bool silent;

	// Inf. about logical data types VARCHAR, INTEGER, FLOAT and DATE.
	// This inf. is obtained from the ODBC driver by use of the
	// SQLGetTypeInfo() function.  The key piece of inf. is the
	// type name the data source uses for each logical data type.
	// e.g. VARCHAR; Oracle calls it VARCHAR2.
	SqlTypeInfo typeInfVarchar, typeInfInteger, typeInfFloat, typeInfDate;
	
	// Public member functions
	wxDB(HENV &aHenv);
	bool		 Open(char *Dsn, char *Uid, char *AuthStr);  // Data Source Name, User ID, Password
	void		 Close(void);
	bool		 CommitTrans(void);
	bool		 RollbackTrans(void);
	bool		 DispAllErrors(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
	bool		 GetNextError(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
	void		 DispNextError(void);
	bool		 CreateView(char *viewName, char *colList, char *pSqlStmt);
	bool		 ExecSql(char *pSqlStmt);
	bool	    Grant(int privileges, char *tableName, char *userList = "PUBLIC");
	int	    TranslateSqlState(char *SQLState);
	bool		 Catalog(char *userID, char *fileName = "Catalog.txt");
	CcolInf	*GetColumns(char *tableName[]);
	char		*GetDatabaseName(void)	{return dbInf.dbmsName;}
	char		*GetDataSource(void)		{return dsn;}
	char		*GetUsername(void)		{return uid;}
	char		*GetPassword(void)		{return authStr;}
	bool		 IsOpen(void)				{return dbIsOpen;}
	HENV		 GetHENV(void)				{return henv;}
	HDBC		 GetHDBC(void)				{return hdbc;}
	HSTMT		 GetHSTMT(void)			{return hstmt;}
	bool		 TableExists(char *tableName);  // Table name can refer to a table, view, alias or synonym
	void		 LogError(char *errMsg, char *SQLState = 0) {logError(errMsg, SQLState);}
	bool		 SqlLog(enum sqlLog state, char *filename = "sqllog.txt", bool append = FALSE);
	bool		 WriteSqlLog(char *logMsg);

};  // wxDB

// This structure forms a node in a linked list.  The linked list of "DbList" objects
// keeps track of allocated database connections.  This allows the application to
// open more than one database connection through ODBC for multiple transaction support
// or for multiple database support.

struct DbList
{
	DbList *PtrPrev;							// Pointer to previous item in the list
	char    Dsn[SQL_MAX_DSN_LENGTH+1];	// Data Source Name
	wxDB	 *PtrDb;								// Pointer to the wxDB object
	bool    Free;								// Is item free or in use?
	DbList *PtrNext;							// Pointer to next item in the list
};

// The following routines allow a user to get new database connections, free them
// for other code segments to use, or close all of them when the application has
// completed.

wxDB  *GetDbConnection(DbStuff *pDbStuff);
bool  FreeDbConnection(wxDB *pDb);
void  CloseDbConnections(void);
int	NumberDbConnectionsInUse(void);

// This routine allows you to query a driver manager
// for a list of available datasources.  Call this routine
// the first time using SQL_FETCH_FIRST.  Continue to call it
// using SQL_FETCH_NEXT until you've exhausted the list.
bool GetDataSource(HENV henv, char *Dsn, SWORD DsnMax, char *DsDesc, SWORD DsDescMax,
						 UWORD direction = SQL_FETCH_NEXT);

#endif
Commit	Line	Data
108106cf JS	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: db.h
	3	// Purpose: Header file wxDB class. The wxDB class represents a connection
	4	// to an ODBC data source. The wxDB class allows operations on the data
	5	// source such as opening and closing the data source.
	6	// Author: Doug Card
	7	// Modified by:
1fc5dd6f JS	8	// Mods: Dec, 1998: Added support for SQL statement logging and database
1fc5dd6f JS	9	// cataloging
108106cf JS	10	// Created: 9.96
	11	// RCS-ID: $Id$
	12	// Copyright: (c) 1996 Remstar International, Inc.
	13	// Licence: wxWindows licence, plus:
	14	// Notice: This class library and its intellectual design are free of charge for use,
	15	// modification, enhancement, debugging under the following conditions:
	16	// 1) These classes may only be used as part of the implementation of a
	17	// wxWindows-based application
	18	// 2) All enhancements and bug fixes are to be submitted back to the wxWindows
	19	// user groups free of all charges for use with the wxWindows library.
	20	// 3) These classes may not be distributed as part of any other class library,
	21	// DLL, text (written or electronic), other than a complete distribution of
	22	// the wxWindows GUI development toolkit.
1fc5dd6f	23	//
108106cf JS	24	///////////////////////////////////////////////////////////////////////////////
	25
	26	/*
	27	// SYNOPSIS START
	28	// SYNOPSIS STOP
	29	*/
	30
	31	#ifndef DB_DOT_H
	32	#define DB_DOT_H
1fc5dd6f	33
108106cf JS	34	#ifdef __GNUG__
	35	#pragma interface "db.h"
	36	#endif
	37
1fc5dd6f	38	#if defined(__WXMSW__) \|\| defined(WIN32)
108106cf JS	39	#include <windows.h>
	40	#endif
	41
7e616b10 RR	42
	43	#ifdef __WXGTK__
	44
	45	extern "C" {
	46	#include <../iodbc/isql.h>
	47	#include <../iodbc/isqlext.h>
	48	#include <../iodbc/odbc_funcs.h>
	49	#include <../iodbc/odbc_types.h>
	50
	51	typedef float SFLOAT;
	52	typedef double SDOUBLE;
	53	#define ULONG UDWORD
	54
	55	}
	56
	57	#else
	58
108106cf JS	59	#define ODBCVER 0x0250
	60	#include <sql.h>
	61	#include <sqlext.h>
	62
7e616b10 RR	63	#endif
7e616b10 RR	64
108106cf JS	65	enum enumDummy {enumDum1};
	66
	67	#define SQL_C_BOOLEAN (sizeof(int) == 2 ? SQL_C_USHORT : SQL_C_ULONG)
	68	#define SQL_C_ENUM (sizeof(enumDummy) == 2 ? SQL_C_USHORT : SQL_C_ULONG) //glt 2-21-97
	69
108106cf	70	// Database Globals
7e616b10 RR	71	const int DB_TYPE_NAME_LEN = 40;
	72	const int DB_MAX_STATEMENT_LEN = 2048;
	73	const int DB_MAX_WHERE_CLAUSE_LEN = 1024;
	74	const int DB_MAX_ERROR_MSG_LEN = 512;
	75	const int DB_MAX_ERROR_HISTORY = 5;
	76	const int DB_MAX_TABLE_NAME_LEN = 128;
	77	const int DB_MAX_COLUMN_NAME_LEN = 128;
	78
	79	const int DB_DATA_TYPE_VARCHAR = 1;
	80	const int DB_DATA_TYPE_INTEGER = 2;
	81	const int DB_DATA_TYPE_FLOAT = 3;
	82	const int DB_DATA_TYPE_DATE = 4;
	83
	84	const int DB_SELECT_KEYFIELDS = 1;
	85	const int DB_SELECT_WHERE = 2;
	86	const int DB_SELECT_MATCHING = 3;
	87	const int DB_SELECT_STATEMENT = 4;
	88
	89	const int DB_UPD_KEYFIELDS = 1;
	90	const int DB_UPD_WHERE = 2;
	91
	92	const int DB_DEL_KEYFIELDS = 1;
	93	const int DB_DEL_WHERE = 2;
	94	const int DB_DEL_MATCHING = 3;
	95
	96	const int DB_WHERE_KEYFIELDS = 1;
	97	const int DB_WHERE_MATCHING = 2;
	98
	99	const int DB_CURSOR0 = 0;
	100	const int DB_CURSOR1 = 1;
	101	const int DB_CURSOR2 = 2;
	102	//const int DB_CURSOR3 = 3;
	103	//const int DB_CURSOR4 = 4;
	104	//const int DB_CURSOR5 = 5;
	105
	106	const int DB_GRANT_SELECT = 1;
	107	const int DB_GRANT_INSERT = 2;
	108	const int DB_GRANT_UPDATE = 4;
	109	const int DB_GRANT_DELETE = 8;
	110	const int DB_GRANT_ALL = DB_GRANT_SELECT \| DB_GRANT_INSERT \| DB_GRANT_UPDATE \| DB_GRANT_DELETE;
108106cf JS	111
	112	// ODBC Error codes (derived from ODBC SqlState codes)
	113	enum ODBC_ERRORS
	114	{
	115	DB_FAILURE = 0,
	116	DB_SUCCESS = 1,
	117	DB_ERR_NOT_IN_USE,
	118	DB_ERR_GENERAL_WARNING, // SqlState = '01000'
	119	DB_ERR_DISCONNECT_ERROR, // SqlState = '01002'
	120	DB_ERR_DATA_TRUNCATED, // SqlState = '01004'
	121	DB_ERR_PRIV_NOT_REVOKED, // SqlState = '01006'
	122	DB_ERR_INVALID_CONN_STR_ATTR, // SqlState = '01S00'
	123	DB_ERR_ERROR_IN_ROW, // SqlState = '01S01'
	124	DB_ERR_OPTION_VALUE_CHANGED, // SqlState = '01S02'
	125	DB_ERR_NO_ROWS_UPD_OR_DEL, // SqlState = '01S03'
	126	DB_ERR_MULTI_ROWS_UPD_OR_DEL, // SqlState = '01S04'
	127	DB_ERR_WRONG_NO_OF_PARAMS, // SqlState = '07001'
	128	DB_ERR_DATA_TYPE_ATTR_VIOL, // SqlState = '07006'
	129	DB_ERR_UNABLE_TO_CONNECT, // SqlState = '08001'
	130	DB_ERR_CONNECTION_IN_USE, // SqlState = '08002'
	131	DB_ERR_CONNECTION_NOT_OPEN, // SqlState = '08003'
	132	DB_ERR_REJECTED_CONNECTION, // SqlState = '08004'
	133	DB_ERR_CONN_FAIL_IN_TRANS, // SqlState = '08007'
	134	DB_ERR_COMM_LINK_FAILURE, // SqlState = '08S01'
	135	DB_ERR_INSERT_VALUE_LIST_MISMATCH, // SqlState = '21S01'
	136	DB_ERR_DERIVED_TABLE_MISMATCH, // SqlState = '21S02'
	137	DB_ERR_STRING_RIGHT_TRUNC, // SqlState = '22001'
	138	DB_ERR_NUMERIC_VALUE_OUT_OF_RNG, // SqlState = '22003'
	139	DB_ERR_ERROR_IN_ASSIGNMENT, // SqlState = '22005'
	140	DB_ERR_DATETIME_FLD_OVERFLOW, // SqlState = '22008'
	141	DB_ERR_DIVIDE_BY_ZERO, // SqlState = '22012'
	142	DB_ERR_STR_DATA_LENGTH_MISMATCH, // SqlState = '22026'
	143	DB_ERR_INTEGRITY_CONSTRAINT_VIOL, // SqlState = '23000'
	144	DB_ERR_INVALID_CURSOR_STATE, // SqlState = '24000'
	145	DB_ERR_INVALID_TRANS_STATE, // SqlState = '25000'
	146	DB_ERR_INVALID_AUTH_SPEC, // SqlState = '28000'
	147	DB_ERR_INVALID_CURSOR_NAME, // SqlState = '34000'
	148	DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL, // SqlState = '37000'
	149	DB_ERR_DUPLICATE_CURSOR_NAME, // SqlState = '3C000'
	150	DB_ERR_SERIALIZATION_FAILURE, // SqlState = '40001'
	151	DB_ERR_SYNTAX_ERROR_OR_ACCESS_VIOL2, // SqlState = '42000'
	152	DB_ERR_OPERATION_ABORTED, // SqlState = '70100'
	153	DB_ERR_UNSUPPORTED_FUNCTION, // SqlState = 'IM001'
	154	DB_ERR_NO_DATA_SOURCE, // SqlState = 'IM002'
	155	DB_ERR_DRIVER_LOAD_ERROR, // SqlState = 'IM003'
	156	DB_ERR_SQLALLOCENV_FAILED, // SqlState = 'IM004'
	157	DB_ERR_SQLALLOCCONNECT_FAILED, // SqlState = 'IM005'
	158	DB_ERR_SQLSETCONNECTOPTION_FAILED, // SqlState = 'IM006'
	159	DB_ERR_NO_DATA_SOURCE_DLG_PROHIB, // SqlState = 'IM007'
	160	DB_ERR_DIALOG_FAILED, // SqlState = 'IM008'
	161	DB_ERR_UNABLE_TO_LOAD_TRANSLATION_DLL, // SqlState = 'IM009'
	162	DB_ERR_DATA_SOURCE_NAME_TOO_LONG, // SqlState = 'IM010'
	163	DB_ERR_DRIVER_NAME_TOO_LONG, // SqlState = 'IM011'
	164	DB_ERR_DRIVER_KEYWORD_SYNTAX_ERROR, // SqlState = 'IM012'
	165	DB_ERR_TRACE_FILE_ERROR, // SqlState = 'IM013'
	166	DB_ERR_TABLE_OR_VIEW_ALREADY_EXISTS, // SqlState = 'S0001'
	167	DB_ERR_TABLE_NOT_FOUND, // SqlState = 'S0002'
	168	DB_ERR_INDEX_ALREADY_EXISTS, // SqlState = 'S0011'
	169	DB_ERR_INDEX_NOT_FOUND, // SqlState = 'S0012'
	170	DB_ERR_COLUMN_ALREADY_EXISTS, // SqlState = 'S0021'
	171	DB_ERR_COLUMN_NOT_FOUND, // SqlState = 'S0022'
	172	DB_ERR_NO_DEFAULT_FOR_COLUMN, // SqlState = 'S0023'
	173	DB_ERR_GENERAL_ERROR, // SqlState = 'S1000'
	174	DB_ERR_MEMORY_ALLOCATION_FAILURE, // SqlState = 'S1001'
175	DB_ERR_INVALID_COLUMN_NUMBER, // SqlState = 'S1002'
176	DB_ERR_PROGRAM_TYPE_OUT_OF_RANGE, // SqlState = 'S1003'
177	DB_ERR_SQL_DATA_TYPE_OUT_OF_RANGE, // SqlState = 'S1004'
178	DB_ERR_OPERATION_CANCELLED, // SqlState = 'S1008'
179	DB_ERR_INVALID_ARGUMENT_VALUE, // SqlState = 'S1009'
180	DB_ERR_FUNCTION_SEQUENCE_ERROR, // SqlState = 'S1010'
181	DB_ERR_OPERATION_INVALID_AT_THIS_TIME, // SqlState = 'S1011'
182	DB_ERR_INVALID_TRANS_OPERATION_CODE, // SqlState = 'S1012'
183	DB_ERR_NO_CURSOR_NAME_AVAIL, // SqlState = 'S1015'
184	DB_ERR_INVALID_STR_OR_BUF_LEN, // SqlState = 'S1090'
185	DB_ERR_DESCRIPTOR_TYPE_OUT_OF_RANGE, // SqlState = 'S1091'
186	DB_ERR_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1092'
187	DB_ERR_INVALID_PARAM_NO, // SqlState = 'S1093'
188	DB_ERR_INVALID_SCALE_VALUE, // SqlState = 'S1094'
189	DB_ERR_FUNCTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1095'
190	DB_ERR_INF_TYPE_OUT_OF_RANGE, // SqlState = 'S1096'
191	DB_ERR_COLUMN_TYPE_OUT_OF_RANGE, // SqlState = 'S1097'
192	DB_ERR_SCOPE_TYPE_OUT_OF_RANGE, // SqlState = 'S1098'
193	DB_ERR_NULLABLE_TYPE_OUT_OF_RANGE, // SqlState = 'S1099'
194	DB_ERR_UNIQUENESS_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1100'
195	DB_ERR_ACCURACY_OPTION_TYPE_OUT_OF_RANGE, // SqlState = 'S1101'
196	DB_ERR_DIRECTION_OPTION_OUT_OF_RANGE, // SqlState = 'S1103'
197	DB_ERR_INVALID_PRECISION_VALUE, // SqlState = 'S1104'
198	DB_ERR_INVALID_PARAM_TYPE, // SqlState = 'S1105'
199	DB_ERR_FETCH_TYPE_OUT_OF_RANGE, // SqlState = 'S1106'
200	DB_ERR_ROW_VALUE_OUT_OF_RANGE, // SqlState = 'S1107'
201	DB_ERR_CONCURRENCY_OPTION_OUT_OF_RANGE, // SqlState = 'S1108'
202	DB_ERR_INVALID_CURSOR_POSITION, // SqlState = 'S1109'
203	DB_ERR_INVALID_DRIVER_COMPLETION, // SqlState = 'S1110'
204	DB_ERR_INVALID_BOOKMARK_VALUE, // SqlState = 'S1111'
205	DB_ERR_DRIVER_NOT_CAPABLE, // SqlState = 'S1C00'
206	DB_ERR_TIMEOUT_EXPIRED // SqlState = 'S1T00'
207	};
208
209	struct DbStuff
210	{
211	HENV Henv;
212	char Dsn[SQL_MAX_DSN_LENGTH+1]; // Data Source Name
213	char Uid[20]; // User ID
214	char AuthStr[20]; // Authorization string (password)
215	};
216
217	typedef struct
218	{
219	char TypeName[DB_TYPE_NAME_LEN];
220	int FsqlType;
221	long Precision;
222	short CaseSensitive;
223	// short MinimumScale;
224	short MaximumScale;
225	} SqlTypeInfo;
226
227	class CcolInf
228	{
229	public:
230	char tableName[DB_MAX_TABLE_NAME_LEN+1];
231	char colName[DB_MAX_COLUMN_NAME_LEN+1];
232	int sqlDataType;
233	};
234
1fc5dd6f JS	235	enum sqlLog
	236	{
	237	sqlLogOFF,
	238	sqlLogON
	239	};
	240
108106cf JS	241	class wxDB
	242	{
	243	private:
	244
	245	// Private data
1fc5dd6f JS	246	bool dbIsOpen;
	247	char *dsn; // Data source name
	248	char *uid; // User ID
	249	char *authStr; // Authorization string (password)
	250	FILE *fpSqlLog; // Sql Log file pointer
	251	enum sqlLog sqlLogState; // On or Off
108106cf JS	252
	253	// Private member functions
	254	bool getDbInfo(void);
	255	bool getDataTypeInfo(SWORD fSqlType, SqlTypeInfo &structSQLTypeInfo);
	256	bool setConnectionOptions(void);
	257	void logError(char errMsg, char SQLState);
	258
	259	public:
	260
	261	// The following structure contains database information gathered from the
	262	// datasource when the datasource is first opened.
	263	struct
	264	{
	265	char dbmsName[40]; // Name of the dbms product
	266	char dbmsVer[20]; // Version # of the dbms product
	267	char driverName[40]; // Driver name
	268	char odbcVer[20]; // ODBC version of the driver
	269	char drvMgrOdbcVer[20]; // ODBC version of the driver manager
	270	char driverVer[40]; // Driver version
	271	char serverName[40]; // Server Name, typically a connect string
	272	char databaseName[128]; // Database filename
	273	char outerJoins[2]; // Indicates whether the data source supports outer joins
	274	char procedureSupport[2]; // Indicates whether the data source supports stored procedures
	275	UWORD maxConnections; // Maximum # of connections the data source supports
	276	UWORD maxStmts; // Maximum # of HSTMTs per HDBC
	277	UWORD apiConfLvl; // ODBC API conformance level
	278	UWORD cliConfLvl; // Indicates whether the data source is SAG compliant
	279	UWORD sqlConfLvl; // SQL conformance level
	280	UWORD cursorCommitBehavior; // Indicates how cursors are affected by a db commit
	281	UWORD cursorRollbackBehavior; // Indicates how cursors are affected by a db rollback
	282	UWORD supportNotNullClause; // Indicates if data source supports NOT NULL clause
	283	char supportIEF[2]; // Integrity Enhancement Facility (Referential Integrity)
	284	UDWORD txnIsolation; // Default transaction isolation level supported by the driver
	285	UDWORD txnIsolationOptions; // Transaction isolation level options available
	286	UDWORD fetchDirections; // Fetch directions supported
	287	UDWORD lockTypes; // Lock types supported in SQLSetPos
	288	UDWORD posOperations; // Position operations supported in SQLSetPos
	289	UDWORD posStmts; // Position statements supported
	290	UDWORD scrollConcurrency; // Concurrency control options supported for scrollable cursors
	291	UDWORD scrollOptions; // Scroll Options supported for scrollable cursors
	292	UDWORD staticSensitivity; // Indicates if additions, deletions and updates can be detected
	293	UWORD txnCapable; // Indicates if the data source supports transactions
	294	UDWORD loginTimeout; // Number seconds to wait for a login request
	295	} dbInf;
	296
	297	// ODBC handles
	298	HENV henv; // ODBC Environment handle
	299	HDBC hdbc; // ODBC DB Connection handle
	300	HSTMT hstmt; // ODBC Statement handle
	301
	302	// ODBC Error Inf.
	303	char sqlState[20];
	304	SDWORD nativeError;
	305	char errorMsg[SQL_MAX_MESSAGE_LENGTH];
	306	SWORD cbErrorMsg;
	307	char errorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
	308	int DB_STATUS;
	309
	310	//Error reporting mode
	311	bool silent;
	312
	313	// Inf. about logical data types VARCHAR, INTEGER, FLOAT and DATE.
	314	// This inf. is obtained from the ODBC driver by use of the
	315	// SQLGetTypeInfo() function. The key piece of inf. is the
316	// type name the data source uses for each logical data type.
317	// e.g. VARCHAR; Oracle calls it VARCHAR2.
318	SqlTypeInfo typeInfVarchar, typeInfInteger, typeInfFloat, typeInfDate;
319
320	// Public member functions
321	wxDB(HENV &aHenv);
1fc5dd6f JS	322	bool Open(char Dsn, char Uid, char *AuthStr); // Data Source Name, User ID, Password
	323	void Close(void);
	324	bool CommitTrans(void);
	325	bool RollbackTrans(void);
	326	bool DispAllErrors(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
	327	bool GetNextError(HENV aHenv, HDBC aHdbc = SQL_NULL_HDBC, HSTMT aHstmt = SQL_NULL_HSTMT);
	328	void DispNextError(void);
	329	bool CreateView(char viewName, char colList, char *pSqlStmt);
	330	bool ExecSql(char *pSqlStmt);
	331	bool Grant(int privileges, char tableName, char userList = "PUBLIC");
	332	int TranslateSqlState(char *SQLState);
	333	bool Catalog(char userID, char fileName = "Catalog.txt");
	334	CcolInf GetColumns(char tableName[]);
	335	char *GetDatabaseName(void) {return dbInf.dbmsName;}
	336	char *GetDataSource(void) {return dsn;}
	337	char *GetUsername(void) {return uid;}
	338	char *GetPassword(void) {return authStr;}
	339	bool IsOpen(void) {return dbIsOpen;}
	340	HENV GetHENV(void) {return henv;}
	341	HDBC GetHDBC(void) {return hdbc;}
	342	HSTMT GetHSTMT(void) {return hstmt;}
	343	bool TableExists(char *tableName); // Table name can refer to a table, view, alias or synonym
	344	void LogError(char errMsg, char SQLState = 0) {logError(errMsg, SQLState);}
	345	bool SqlLog(enum sqlLog state, char *filename = "sqllog.txt", bool append = FALSE);
	346	bool WriteSqlLog(char *logMsg);
108106cf JS	347
	348	}; // wxDB
	349
	350	// This structure forms a node in a linked list. The linked list of "DbList" objects
	351	// keeps track of allocated database connections. This allows the application to
	352	// open more than one database connection through ODBC for multiple transaction support
	353	// or for multiple database support.
	354
	355	struct DbList
	356	{
	357	DbList *PtrPrev; // Pointer to previous item in the list
	358	char Dsn[SQL_MAX_DSN_LENGTH+1]; // Data Source Name
	359	wxDB *PtrDb; // Pointer to the wxDB object
	360	bool Free; // Is item free or in use?
	361	DbList *PtrNext; // Pointer to next item in the list
	362	};
	363
	364	// The following routines allow a user to get new database connections, free them
	365	// for other code segments to use, or close all of them when the application has
	366	// completed.
	367
	368	wxDB GetDbConnection(DbStuff pDbStuff);
	369	bool FreeDbConnection(wxDB *pDb);
	370	void CloseDbConnections(void);
	371	int NumberDbConnectionsInUse(void);
	372
	373	// This routine allows you to query a driver manager
	374	// for a list of available datasources. Call this routine
	375	// the first time using SQL_FETCH_FIRST. Continue to call it
	376	// using SQL_FETCH_NEXT until you've exhausted the list.
	377	bool GetDataSource(HENV henv, char Dsn, SWORD DsnMax, char DsDesc, SWORD DsDescMax,
	378	UWORD direction = SQL_FETCH_NEXT);
	379
	380	#endif