X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9f8de18fb64df24b778c92600af59338f606e1a0..c3baf426f87f90b82ea5a610371001e63e106d99:/include/wx/dbtable.h diff --git a/include/wx/dbtable.h b/include/wx/dbtable.h index 004f02a299..710b4d1650 100644 --- a/include/wx/dbtable.h +++ b/include/wx/dbtable.h @@ -1,13 +1,13 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: table.h +// Name: dbtable.h // Purpose: Declaration of the wxTable class. // Author: Doug Card -// Modified by: +// Modified by: George Tasker // 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 @@ -23,16 +23,30 @@ // SYNOPSIS STOP */ -#ifndef TABLE_DOT_H -#define TABLE_DOT_H +#ifndef DBTABLE_DOT_H +#define DBTABLE_DOT_H -#ifdef __GNUG__ -#pragma interface "dbtable.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 interface "dbtable.h" + #endif #endif -#include "wx/db.h" +#if wxMAJOR_VERSION == 2 + #include "wx/db.h" +#else + #include "db.h" +#endif -const int ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger +const int ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger +const int DEFAULT_CURSOR = 0; +const bool QUERY_ONLY = TRUE; +const bool DISABLE_VIEW = TRUE; // The following class is used to define a column of a table. // The wxTable constructor will dynamically allocate as many of @@ -42,123 +56,159 @@ const int ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger // wxTable class which allows it to create a table in the data // source, exchange data between the data source and the C++ // object, and so on. - -class WXDLLEXPORT CcolDef +class WXDLLEXPORT wxColDef +{ +public: + char ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name + int DbDataType; // Logical Data Type; e.g. DB_DATA_TYPE_INTEGER + int SqlCtype; // C data type; e.g. SQL_C_LONG + void *PtrDataObj; // Address of the data object + int SzDataObj; // Size, in bytes, of the data object + bool KeyField; // TRUE if this column is part of the PRIMARY KEY to the table; Date fields should NOT be KeyFields. + bool Updateable; // Specifies whether this column is updateable + bool InsertAllowed; // Specifies whether this column should be included in an INSERT statement + bool DerivedCol; // Specifies whether this column is a derived value + SDWORD CbValue; // Internal use only!!! + bool Null; // NOT FULLY IMPLEMENTED - Allows NULL values in Inserts and Updates +}; // wxColDef + + +class WXDLLEXPORT wxColDataPtr { public: - char ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name glt 4/19/97 added one for the null terminator - int DbDataType; // Logical Data Type; e.g. DB_DATA_TYPE_INTEGER - int SqlCtype; // C data type; e.g. SQL_C_LONG - void *PtrDataObj; // Address of the data object - int SzDataObj; // Size, in bytes, of the data object - bool KeyField; // TRUE if this column is part of the PRIMARY KEY to the table; Date fields should NOT be KeyFields. - bool Updateable; // Specifies whether this column is updateable - bool InsertAllowed; // Specifies whether this column should be included in an INSERT statement - bool DerivedCol; // Specifies whether this column is a derived value - SDWORD CbValue; // Internal use only!!! -}; // CcolDef + void *PtrDataObj; + int SzDataObj; + int SqlCtype; +}; // wxColDataPtr + + +// Backward compability for Remstar classes. These +// will eventually go away, so the wxColXxxx classes +// should be used +typedef wxColDef CcolDef; +typedef wxColDataPtr CcolDataPtr; + // This structure is used when creating secondary indexes. class WXDLLEXPORT CidxDef { public: - char ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name glt 4/19/97 added one for the null terminator - bool Ascending; + char ColName[DB_MAX_COLUMN_NAME_LEN+1]; + bool Ascending; }; // CidxDef + class WXDLLEXPORT wxTable { private: + ULONG tableID; // Used for debugging. This can help to match up mismatched constructors/destructors - // Private member variables - int currCursorNo; + // Private member variables + UDWORD cursorType; - // Private member functions - bool bindInsertParams(void); - bool bindUpdateParams(void); - bool bindCols(HSTMT cursor); - bool getRec(UWORD fetchType); - bool execDelete(char *pSqlStmt); - bool execUpdate(char *pSqlStmt); - bool query(int queryType, bool forUpdate, bool distinct, char *pSqlStmt = 0); + // Private member functions + bool bindInsertParams(void); + bool bindUpdateParams(void); + bool bindCols(HSTMT cursor); + bool getRec(UWORD fetchType); + bool execDelete(const char *pSqlStmt); + bool execUpdate(const char *pSqlStmt); + bool query(int queryType, bool forUpdate, bool distinct, char *pSqlStmt = 0); public: - - // Pointer to the database object this table belongs to - wxDB *pDb; - - // ODBC Handles - HENV henv; // ODBC Environment handle - HDBC hdbc; // ODBC DB Connection handle - HSTMT hstmt; // ODBC Statement handle -// HSTMT c0, c1, c2, c3, c4, c5; // Cursors 0 through 5 - HSTMT c0, c1, c2; // Limited to Cursors 0 through 2 for now - HSTMT hstmtInsert; // ODBC Statement handle used specifically for inserts - HSTMT hstmtDelete; // ODBC Statement handle used specifically for deletes - HSTMT hstmtUpdate; // ODBC Statement handle used specifically for updates - HSTMT hstmtCount; // ODBC Statement handle used specifically for COUNT(*) - - // Table Inf. - char tableName[DB_MAX_TABLE_NAME_LEN+1]; // Table name - char queryTableName[DB_MAX_TABLE_NAME_LEN+1]; // Query Table Name - int noCols; // # of columns in the table - - // Column Definitions - CcolDef *colDefs; // Array of CcolDef structures - - // Where, Order By and From clauses - char *where; // Standard SQL where clause, minus the word WHERE - char *orderBy; // Standard SQL order by clause, minus the ORDER BY - char *from; // Allows for joins in a Ctable::Query(). Format: ",tbl,tbl..." - - // Flags - bool selectForUpdate; - - // Public member functions - wxTable(wxDB *pwxDB, const char *tblName, const int nCols, const char *qryTblName = 0); - virtual ~wxTable(); - bool Open(void); - bool CreateTable(void); - bool CreateIndex(char * idxName, bool unique, int noIdxCols, CidxDef *pIdxDefs); - bool CloseCursor(HSTMT cursor); - int Insert(void); - bool Update(void); - bool Update(char *pSqlStmt); - bool UpdateWhere(char *pWhereClause); - bool Delete(void); - bool DeleteWhere(char *pWhereClause); - bool DeleteMatching(void); - virtual bool Query(bool forUpdate = FALSE, bool distinct = FALSE); - bool QueryBySqlStmt(char *pSqlStmt); - bool QueryMatching(bool forUpdate = FALSE, bool distinct = FALSE); - bool QueryOnKeyFields(bool forUpdate = FALSE, bool distinct = FALSE); - bool GetNext(void) { return(getRec(SQL_FETCH_NEXT)); } - bool operator++(int) { return(getRec(SQL_FETCH_NEXT)); } -#ifndef FWD_ONLY_CURSORS - bool GetPrev(void) { return(getRec(SQL_FETCH_PRIOR)); } - bool operator--(int) { return(getRec(SQL_FETCH_PRIOR)); } - bool GetFirst(void) { return(getRec(SQL_FETCH_FIRST)); } - bool GetLast(void) { return(getRec(SQL_FETCH_LAST)); } + // Pointer to the database object this table belongs to + wxDB *pDb; + + // ODBC Handles + HENV henv; // ODBC Environment handle + HDBC hdbc; // ODBC DB Connection handle + HSTMT hstmt; // ODBC Statement handle + HSTMT *hstmtDefault; // Default cursor + HSTMT hstmtInsert; // ODBC Statement handle used specifically for inserts + HSTMT hstmtDelete; // ODBC Statement handle used specifically for deletes + HSTMT hstmtUpdate; // ODBC Statement handle used specifically for updates + HSTMT hstmtInternal; // ODBC Statement handle used internally only + HSTMT *hstmtCount; // ODBC Statement handle used by Count() function (No binding of columns) + + // Table Inf. + char tableName[DB_MAX_TABLE_NAME_LEN+1]; // Table name + char queryTableName[DB_MAX_TABLE_NAME_LEN+1]; // Query Table Name + int noCols; // # of columns in the table + bool queryOnly; // Query Only, no inserts, updates or deletes + + char tablePath[DB_PATH_MAX]; // needed for dBase tables + + // Column Definitions + wxColDef *colDefs; // Array of wxColDef structures + + // Where, Order By and From clauses + char *where; // Standard SQL where clause, minus the word WHERE + char *orderBy; // Standard SQL order by clause, minus the ORDER BY + char *from; // Allows for joins in a wxTable::Query(). Format: ",tbl,tbl..." + + // Flags + bool selectForUpdate; + + // Public member functions + wxTable(wxDB *pwxDB, const char *tblName, const int nCols, + const char *qryTblName = 0, bool qryOnly = !QUERY_ONLY, const char *tblPath=NULL); + virtual ~wxTable(); + bool Open(void); + bool CreateTable(bool attemptDrop=TRUE); + bool DropTable(void); + bool CreateIndex(const char * idxName, bool unique, int noIdxCols, CidxDef *pIdxDefs, bool attemptDrop=TRUE); + bool DropIndex(const char * idxName); + bool CloseCursor(HSTMT cursor); + int Insert(void); + bool Update(void); + bool Update(const char *pSqlStmt); + bool UpdateWhere(const char *pWhereClause); + bool Delete(void); + bool DeleteWhere(const char *pWhereClause); + bool DeleteMatching(void); + virtual bool Query(bool forUpdate = FALSE, bool distinct = FALSE); + bool QueryBySqlStmt(char *pSqlStmt); + bool QueryMatching(bool forUpdate = FALSE, bool distinct = FALSE); + bool QueryOnKeyFields(bool forUpdate = FALSE, bool distinct = FALSE); + bool GetNext(void) { return(getRec(SQL_FETCH_NEXT)); } + bool operator++(int) { return(getRec(SQL_FETCH_NEXT)); } + + /***** These four functions only work with wxDB instances that are defined ***** + ***** as not being FwdOnlyCursors *****/ + bool GetPrev(void); + bool operator--(int); + bool GetFirst(void); + bool GetLast(void); + + bool IsCursorClosedOnCommit(void); + bool IsColNull(int colNo); + UWORD GetRowNum(void); + void GetSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct); + void GetDeleteStmt(char *pSqlStmt, int typeOfDel, const char *pWhereClause = 0); + void GetUpdateStmt(char *pSqlStmt, int typeOfUpd, const char *pWhereClause = 0); + void GetWhereClause(char *pWhereClause, int typeOfWhere, const char *qualTableName = 0); + bool CanSelectForUpdate(void); + bool CanUpdByROWID(void); + void ClearMemberVars(void); + bool SetQueryTimeout(UDWORD nSeconds); + void SetColDefs (int index, const char *fieldName, int dataType, void *pData, int cType, + int size, bool keyField = FALSE, bool upd = TRUE, + bool insAllow = TRUE, bool derivedCol = FALSE); + wxColDataPtr* SetColDefs (wxColInf *colInfs, ULONG numCols); + + HSTMT *NewCursor(bool setCursor = FALSE, bool bindColumns = TRUE); + bool DeleteCursor(HSTMT *hstmtDel); + void SetCursor(HSTMT *hstmtActivate = (void **) DEFAULT_CURSOR); + HSTMT GetCursor(void) { return(hstmt); } + ULONG Count(const char *args="*"); + int DB_STATUS(void) { return(pDb->DB_STATUS); } + bool Refresh(void); + bool SetNull(int colNo); + bool SetNull(const char *colName); + +#ifdef __WXDEBUG__ + ULONG GetTableID() { return tableID; }; #endif - bool IsCursorClosedOnCommit(void); - bool IsColNull(int colNo); - UWORD GetRowNum(void); - void GetSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct); - void GetDeleteStmt(char *pSqlStmt, int typeOfDel, char *pWhereClause = 0); - void GetUpdateStmt(char *pSqlStmt, int typeOfUpd, char *pWhereClause = 0); - void GetWhereClause(char *pWhereClause, int typeOfWhere, char *qualTableName = 0); - bool CanSelectForUpdate(void); - bool CanUpdByROWID(void); - void ClearMemberVars(void); - bool SetQueryTimeout(UDWORD nSeconds); - void SetColDefs (int index, char *fieldName, int dataType, void *pData, int cType, - int size, bool keyField = FALSE, bool upd = TRUE, - bool insAllow = TRUE, bool derivedCol = FALSE); - bool SetCursor(int cursorNo = DB_CURSOR0); - int GetCursor(void) { return(currCursorNo); } - ULONG Count(void); - int DB_STATUS(void) { return(pDb->DB_STATUS); } - bool Refresh(void); }; // wxTable