X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1fc5dd6f8eb590992150b3998266fb50dfaab227..99646f7ee4afb3d7d929e1d396e56de8c1aed622:/include/wx/dbtable.h?ds=sidebyside diff --git a/include/wx/dbtable.h b/include/wx/dbtable.h index 0fa4fef0b9..203f453ad4 100644 --- a/include/wx/dbtable.h +++ b/include/wx/dbtable.h @@ -1,13 +1,15 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: table.h -// Purpose: Declaration of the wxTable class. +// Name: dbtable.h +// Purpose: Declaration of the wxDbTable class. // Author: Doug Card -// Modified by: +// Modified by: George Tasker +// Bart Jourquin +// Mark Johnson // 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 @@ -23,143 +25,293 @@ // 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 ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger +const int wxDB_ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger +const int wxDB_DEFAULT_CURSOR = 0; +const bool wxDB_QUERY_ONLY = TRUE; +const bool wxDB_DISABLE_VIEW = TRUE; // The following class is used to define a column of a table. -// The wxTable constructor will dynamically allocate as many of +// The wxDbTable constructor will dynamically allocate as many of // these as there are columns in the table. The class derived -// from wxTable must initialize these column definitions in it's +// from wxDbTable must initialize these column definitions in it's // constructor. These column definitions provide inf. to the -// wxTable class which allows it to create a table in the data +// wxDbTable 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 wxDbColDef +{ +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 +}; // wxDbColDef + -class CcolDef +class WXDLLEXPORT wxDbColDataPtr { 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; +}; // wxDbColDataPtr + // This structure is used when creating secondary indexes. -class CidxDef +class WXDLLEXPORT wxDbIdxDef { public: - char ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name glt 4/19/97 added one for the null terminator - bool Ascending; -}; // CidxDef + char ColName[DB_MAX_COLUMN_NAME_LEN+1]; + bool Ascending; +}; // wxDbIdxDef -class wxTable + +class WXDLLEXPORT wxDbTable { private: + ULONG tableID; // Used for debugging. This can help to match up mismatched constructors/destructors + + // Private member variables + UDWORD cursorType; + bool insertable; + + // 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, const char *pSqlStmt = 0); + +#if !wxODBC_BACKWARD_COMPATABILITY +// these were public + // Where, Order By and From clauses + wxString where; // Standard SQL where clause, minus the word WHERE + wxString orderBy; // Standard SQL order by clause, minus the ORDER BY + wxString from; // Allows for joins in a wxDbTable::Query(). Format: ",tbl,tbl..." + + // 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) - // Private member variables - int currCursorNo; + // Flags + bool selectForUpdate; - // 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); + // Pointer to the database object this table belongs to + wxDb *pDb; + // Table Inf. + char tablePath[wxDB_PATH_MAX]; // needed for dBase tables + 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 + + // Column Definitions + wxDbColDef *colDefs; // Array of wxDbColDef structures +#endif public: +#if wxODBC_BACKWARD_COMPATABILITY + // 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 wxDbTable::Query(). Format: ",tbl,tbl..." + + // 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) + + // Flags + bool selectForUpdate; + + // Pointer to the database object this table belongs to + wxDb *pDb; + + // Table Inf. + char tablePath[wxDB_PATH_MAX]; // needed for dBase tables + 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 + + // Column Definitions + wxDbColDef *colDefs; // Array of wxDbColDef structures +#endif + // Public member functions + wxDbTable(wxDb *pwxDb, const char *tblName, const int nCols, + const char *qryTblName = 0, bool qryOnly = !wxDB_QUERY_ONLY, const char *tblPath=NULL); + virtual ~wxDbTable(); + + bool Open(void); + bool CreateTable(bool attemptDrop=TRUE); + bool DropTable(void); + bool CreateIndex(const char * idxName, bool unique, int noIdxCols, wxDbIdxDef *pIdxDefs, bool attemptDrop=TRUE); + bool DropIndex(const char * idxName); + + // Accessors + + // The member variables returned by these accessors are all + // set when the wxDbTable instance is createand cannot be + // changed, hence there is no corresponding SetXxxx function + wxDb *GetDb() { return pDb; } + const char *GetTableName() { return tableName; } + const char *GetQueryTableName() { return queryTableName; } + const char *GetTablePath() { return tablePath; } + + int GetNumberOfColumns() { return noCols; } // number of "defined" columns for this wxDbTable instance + + + const char *GetFromClause() { return from; } + const char *GetOrderByClause() { return orderBy; } + const char *GetWhereClause() { return where; } + + bool IsQueryOnly() { return queryOnly; } +#if wxODBC_BACKWARD_COMPATABILITY + void SetFromClause(const char *From) { from = (char *)From; } + void SetOrderByClause(const char *OrderBy) { orderBy = (char *)OrderBy; } + void SetWhereClause(const char *Where) { where = (char *)Where; } +#else + void SetFromClause(const wxString& From) { from = From; } + void SetOrderByClause(const wxString& OrderBy) { orderBy = OrderBy; } + void SetWhereClause(const wxString& Where) { where = Where; } +#endif + 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(const char *pSqlStmt); + bool QueryMatching(bool forUpdate = FALSE, bool distinct = FALSE); + bool QueryOnKeyFields(bool forUpdate = FALSE, bool distinct = FALSE); + bool Refresh(void); + 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); + UWORD GetRowNum(void); + + void BuildSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct); + void BuildDeleteStmt(char *pSqlStmt, int typeOfDel, const char *pWhereClause = 0); + void BuildUpdateStmt(char *pSqlStmt, int typeOfUpd, const char *pWhereClause = 0); + void BuildWhereClause(char *pWhereClause, int typeOfWhere, const char *qualTableName = 0, bool useLikeComparison=FALSE); +#if wxODBC_BACKWARD_COMPATABILITY +// The following member functions are deprecated. You should use the BuildXxxxxStmt functions (above) + void GetSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct) + { BuildSelectStmt(pSqlStmt,typeOfSelect,distinct); } + void GetDeleteStmt(char *pSqlStmt, int typeOfDel, const char *pWhereClause = 0) + { BuildDeleteStmt(pSqlStmt,typeOfDel,pWhereClause); } + void GetUpdateStmt(char *pSqlStmt, int typeOfUpd, const char *pWhereClause = 0) + { BuildUpdateStmt(pSqlStmt,typeOfUpd,pWhereClause); } + void GetWhereClause(char *pWhereClause, int typeOfWhere, + const char *qualTableName = 0, bool useLikeComparison=FALSE) + { BuildWhereClause(pWhereClause,typeOfWhere,qualTableName,useLikeComparison); } +#endif + bool CanSelectForUpdate(void); + bool CanUpdByROWID(void); + void ClearMemberVars(void); + bool SetQueryTimeout(UDWORD nSeconds); + + wxDbColDef *GetColDefs() { return colDefs; } + 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); + wxDbColDataPtr *SetColDefs(wxDbColInf *colInfs, ULONG numCols); + + bool CloseCursor(HSTMT cursor); + bool DeleteCursor(HSTMT *hstmtDel); + void SetCursor(HSTMT *hstmtActivate = (void **) wxDB_DEFAULT_CURSOR); + HSTMT GetCursor(void) { return(hstmt); } + HSTMT *GetNewCursor(bool setCursor = FALSE, bool bindColumns = TRUE); +#if wxODBC_BACKWARD_COMPATABILITY +// The following member function is deprecated. You should use the GetNewCursor + HSTMT *NewCursor(bool setCursor = FALSE, bool bindColumns = TRUE) { return GetNewCursor(setCursor,bindColumns); } +#endif + + ULONG Count(const char *args="*"); + int DB_STATUS(void) { return(pDb->DB_STATUS); } + + bool IsColNull(int colNo); + bool SetNull(int colNo); + bool SetNull(const char *colName); + +#ifdef __WXDEBUG__ + ULONG GetTableID() { return tableID; } +#endif + +}; // wxDbTable + + +// Change this to 0 to remove use of all deprecated functions +#if wxODBC_BACKWARD_COMPATABILITY +//################################################################################# +//############### DEPRECATED functions for backward compatability ################# +//################################################################################# + +// Backward compability. These will eventually go away +typedef wxDbTable wxTable; +typedef wxDbIdxDef wxIdxDef; +typedef wxDbIdxDef CidxDef; +typedef wxDbColDef wxColDef; +typedef wxDbColDef CcolDef; +typedef wxDbColDataPtr wxColDataPtr; +typedef wxDbColDataPtr CcolDataPtr; - // 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); - ~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)); } +const int ROWID = wxDB_ROWID_LEN; +const int DEFAULT_CURSOR = wxDB_DEFAULT_CURSOR; +const bool QUERY_ONLY = wxDB_QUERY_ONLY; +const bool DISABLE_VIEW = wxDB_DISABLE_VIEW; #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 #endif