]> git.saurik.com Git - wxWidgets.git/blame - include/wx/dbtable.h
Cast to void* before casting to Node** to make the compiler do no strict-aliasing...
[wxWidgets.git] / include / wx / dbtable.h
CommitLineData
108106cf 1///////////////////////////////////////////////////////////////////////////////
a2115c88 2// Name: dbtable.h
f6bcfd97 3// Purpose: Declaration of the wxDbTable class.
108106cf 4// Author: Doug Card
30a6d2d2 5// Modified by: George Tasker
3ca6a5f0
BP
6// Bart Jourquin
7// Mark Johnson
108106cf
JS
8// Created: 9.96
9// RCS-ID: $Id$
10// Copyright: (c) 1996 Remstar International, Inc.
7e559cd8 11// Licence: wxWindows licence
108106cf
JS
12///////////////////////////////////////////////////////////////////////////////
13
14/*
15// SYNOPSIS START
16// SYNOPSIS STOP
17*/
18
a2115c88
GT
19#ifndef DBTABLE_DOT_H
20#define DBTABLE_DOT_H
108106cf 21
2ecf902b 22#include "wx/defs.h"
a2115c88 23
882fc8a9
GT
24#include "wx/db.h"
25
26#include "wx/variant.h"
27#include "wx/dbkeyg.h"
108106cf 28
f6bcfd97
BP
29const int wxDB_ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger
30const int wxDB_DEFAULT_CURSOR = 0;
68379eaf
WS
31const bool wxDB_QUERY_ONLY = true;
32const bool wxDB_DISABLE_VIEW = true;
108106cf 33
2b63ff5d
GT
34// Used to indicate end of a variable length list of
35// column numbers passed to member functions
36const int wxDB_NO_MORE_COLUMN_NUMBERS = -1;
37
108106cf 38// The following class is used to define a column of a table.
f6bcfd97 39// The wxDbTable constructor will dynamically allocate as many of
108106cf 40// these as there are columns in the table. The class derived
f6bcfd97 41// from wxDbTable must initialize these column definitions in it's
108106cf 42// constructor. These column definitions provide inf. to the
f6bcfd97 43// wxDbTable class which allows it to create a table in the data
108106cf
JS
44// source, exchange data between the data source and the C++
45// object, and so on.
bb41dcbe 46class WXDLLIMPEXP_ODBC wxDbColDef
108106cf
JS
47{
48public:
4fdae997 49 wxChar ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name
95ca6a20 50 int DbDataType; // Logical Data Type; e.g. DB_DATA_TYPE_INTEGER
02cf6fdd 51 SWORD SqlCtype; // C data type; e.g. SQL_C_LONG
95ca6a20
GT
52 void *PtrDataObj; // Address of the data object
53 int SzDataObj; // Size, in bytes, of the data object
68379eaf 54 bool KeyField; // true if this column is part of the PRIMARY KEY to the table; Date fields should NOT be KeyFields.
95ca6a20
GT
55 bool Updateable; // Specifies whether this column is updateable
56 bool InsertAllowed; // Specifies whether this column should be included in an INSERT statement
57 bool DerivedCol; // Specifies whether this column is a derived value
e716b9be 58 SQLLEN CbValue; // Internal use only!!!
95ca6a20 59 bool Null; // NOT FULLY IMPLEMENTED - Allows NULL values in Inserts and Updates
da99271d
GT
60
61 wxDbColDef();
62
63 bool Initialize();
f6bcfd97 64}; // wxDbColDef
30a6d2d2 65
95ca6a20 66
bb41dcbe 67class WXDLLIMPEXP_ODBC wxDbColDataPtr
30a6d2d2
GT
68{
69public:
95ca6a20
GT
70 void *PtrDataObj;
71 int SzDataObj;
02cf6fdd 72 SWORD SqlCtype;
f6bcfd97 73}; // wxDbColDataPtr
30a6d2d2
GT
74
75
108106cf 76// This structure is used when creating secondary indexes.
bb41dcbe 77class WXDLLIMPEXP_ODBC wxDbIdxDef
108106cf
JS
78{
79public:
4fdae997
GT
80 wxChar ColName[DB_MAX_COLUMN_NAME_LEN+1];
81 bool Ascending;
f6bcfd97 82}; // wxDbIdxDef
108106cf 83
95ca6a20 84
bb41dcbe 85class WXDLLIMPEXP_ODBC wxDbTable
108106cf
JS
86{
87private:
3ca6a5f0 88 ULONG tableID; // Used for debugging. This can help to match up mismatched constructors/destructors
108106cf 89
95ca6a20 90 // Private member variables
3ca6a5f0
BP
91 UDWORD cursorType;
92 bool insertable;
a2115c88 93
95ca6a20 94 // Private member functions
02cf6fdd 95 bool initialize(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
4fdae997
GT
96 const wxString &qryTblName, bool qryOnly, const wxString &tblPath);
97 void cleanup();
98
0907ea9c 99 void setCbValueForColumn(int columnIndex);
4fdae997 100 bool bindParams(bool forUpdate); // called by the other 'bind' functions
3ca6a5f0
BP
101 bool bindInsertParams(void);
102 bool bindUpdateParams(void);
4fdae997 103
3ca6a5f0
BP
104 bool bindCols(HSTMT cursor);
105 bool getRec(UWORD fetchType);
4fdae997
GT
106 bool execDelete(const wxString &pSqlStmt);
107 bool execUpdate(const wxString &pSqlStmt);
da99271d 108 bool query(int queryType, bool forUpdate, bool distinct, const wxString &pSqlStmt=wxEmptyString);
108106cf 109
f6bcfd97
BP
110#if !wxODBC_BACKWARD_COMPATABILITY
111// these were public
112 // Where, Order By and From clauses
113 wxString where; // Standard SQL where clause, minus the word WHERE
114 wxString orderBy; // Standard SQL order by clause, minus the ORDER BY
115 wxString from; // Allows for joins in a wxDbTable::Query(). Format: ",tbl,tbl..."
95ca6a20
GT
116
117 // ODBC Handles
f6bcfd97
BP
118 HENV henv; // ODBC Environment handle
119 HDBC hdbc; // ODBC DB Connection handle
120 HSTMT hstmt; // ODBC Statement handle
121 HSTMT *hstmtDefault; // Default cursor
122 HSTMT hstmtInsert; // ODBC Statement handle used specifically for inserts
123 HSTMT hstmtDelete; // ODBC Statement handle used specifically for deletes
124 HSTMT hstmtUpdate; // ODBC Statement handle used specifically for updates
125 HSTMT hstmtInternal; // ODBC Statement handle used internally only
126 HSTMT *hstmtCount; // ODBC Statement handle used by Count() function (No binding of columns)
95ca6a20 127
f6bcfd97
BP
128 // Flags
129 bool selectForUpdate;
95ca6a20 130
f6bcfd97
BP
131 // Pointer to the database object this table belongs to
132 wxDb *pDb;
95ca6a20 133
f6bcfd97 134 // Table Inf.
4fdae997
GT
135 wxString tablePath; // needed for dBase tables
136 wxString tableName; // Table name
137 wxString queryTableName; // Query Table Name
b8032740 138 UWORD m_numCols; // # of columns in the table
f6bcfd97 139 bool queryOnly; // Query Only, no inserts, updates or deletes
95ca6a20 140
f6bcfd97
BP
141 // Column Definitions
142 wxDbColDef *colDefs; // Array of wxDbColDef structures
143#endif
144public:
145#if wxODBC_BACKWARD_COMPATABILITY
95ca6a20 146 // Where, Order By and From clauses
f6bcfd97
BP
147 char *where; // Standard SQL where clause, minus the word WHERE
148 char *orderBy; // Standard SQL order by clause, minus the ORDER BY
149 char *from; // Allows for joins in a wxDbTable::Query(). Format: ",tbl,tbl..."
150
151 // ODBC Handles
152 HENV henv; // ODBC Environment handle
153 HDBC hdbc; // ODBC DB Connection handle
154 HSTMT hstmt; // ODBC Statement handle
155 HSTMT *hstmtDefault; // Default cursor
156 HSTMT hstmtInsert; // ODBC Statement handle used specifically for inserts
157 HSTMT hstmtDelete; // ODBC Statement handle used specifically for deletes
158 HSTMT hstmtUpdate; // ODBC Statement handle used specifically for updates
159 HSTMT hstmtInternal; // ODBC Statement handle used internally only
160 HSTMT *hstmtCount; // ODBC Statement handle used by Count() function (No binding of columns)
95ca6a20
GT
161
162 // Flags
f6bcfd97 163 bool selectForUpdate;
95ca6a20 164
f6bcfd97
BP
165 // Pointer to the database object this table belongs to
166 wxDb *pDb;
167
168 // Table Inf.
169 char tablePath[wxDB_PATH_MAX]; // needed for dBase tables
170 char tableName[DB_MAX_TABLE_NAME_LEN+1]; // Table name
171 char queryTableName[DB_MAX_TABLE_NAME_LEN+1]; // Query Table Name
b8032740 172 UWORD m_numCols; // # of columns in the table
f6bcfd97
BP
173 bool queryOnly; // Query Only, no inserts, updates or deletes
174
175 // Column Definitions
176 wxDbColDef *colDefs; // Array of wxDbColDef structures
177#endif
95ca6a20 178 // Public member functions
02cf6fdd 179 wxDbTable(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
68379eaf 180 const wxString &qryTblName=wxEmptyString, bool qryOnly = !wxDB_QUERY_ONLY,
8a39593e 181 const wxString &tblPath=wxEmptyString);
4fdae997 182
254a2129
WS
183#if WXWIN_COMPATIBILITY_2_4
184 wxDEPRECATED(
185 wxDbTable(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
29b53ef9
WS
186 const wxChar *qryTblName, bool qryOnly,
187 const wxString &tblPath)
254a2129
WS
188 );
189#endif // WXWIN_COMPATIBILITY_2_4
4fdae997 190
f6bcfd97
BP
191 virtual ~wxDbTable();
192
68379eaf
WS
193 bool Open(bool checkPrivileges=false, bool checkTableExists=true);
194 bool CreateTable(bool attemptDrop=true);
f6bcfd97 195 bool DropTable(void);
549c8cc2
GT
196 bool CreateIndex(const wxString &indexName, bool unique, UWORD numIndexColumns,
197 wxDbIdxDef *pIndexDefs, bool attemptDrop=true);
198 bool DropIndex(const wxString &indexName);
f6bcfd97 199
3ca6a5f0 200 // Accessors
f6bcfd97
BP
201
202 // The member variables returned by these accessors are all
68379eaf 203 // set when the wxDbTable instance is created and cannot be
f6bcfd97 204 // changed, hence there is no corresponding SetXxxx function
3ca6a5f0 205 wxDb *GetDb() { return pDb; }
4fdae997
GT
206 const wxString &GetTableName() { return tableName; }
207 const wxString &GetQueryTableName() { return queryTableName; }
208 const wxString &GetTablePath() { return tablePath; }
f6bcfd97 209
b8032740 210 UWORD GetNumberOfColumns() { return m_numCols; } // number of "defined" columns for this wxDbTable instance
f6bcfd97 211
4fdae997
GT
212 const wxString &GetFromClause() { return from; }
213 const wxString &GetOrderByClause() { return orderBy; }
214 const wxString &GetWhereClause() { return where; }
f6bcfd97 215
3ca6a5f0 216 bool IsQueryOnly() { return queryOnly; }
f6bcfd97
BP
217#if wxODBC_BACKWARD_COMPATABILITY
218 void SetFromClause(const char *From) { from = (char *)From; }
3ca6a5f0
BP
219 void SetOrderByClause(const char *OrderBy) { orderBy = (char *)OrderBy; }
220 void SetWhereClause(const char *Where) { where = (char *)Where; }
f6bcfd97 221#else
e7e5298c
GT
222 void SetFromClause(const wxString &From) { from = From; }
223 void SetOrderByClause(const wxString &OrderBy) { orderBy = OrderBy; }
e938ff5e 224 bool SetOrderByColNums(UWORD first, ...);
e7e5298c
GT
225 void SetWhereClause(const wxString &Where) { where = Where; }
226 void From(const wxString &From) { from = From; }
227 void OrderBy(const wxString &OrderBy) { orderBy = OrderBy; }
228 void Where(const wxString &Where) { where = Where; }
4fdae997
GT
229 const wxString &Where() { return where; }
230 const wxString &OrderBy() { return orderBy; }
231 const wxString &From() { return from; }
f6bcfd97
BP
232#endif
233 int Insert(void);
234 bool Update(void);
4fdae997
GT
235 bool Update(const wxString &pSqlStmt);
236 bool UpdateWhere(const wxString &pWhereClause);
f6bcfd97 237 bool Delete(void);
4fdae997 238 bool DeleteWhere(const wxString &pWhereClause);
f6bcfd97 239 bool DeleteMatching(void);
68379eaf 240 virtual bool Query(bool forUpdate = false, bool distinct = false);
4fdae997 241 bool QueryBySqlStmt(const wxString &pSqlStmt);
68379eaf
WS
242 bool QueryMatching(bool forUpdate = false, bool distinct = false);
243 bool QueryOnKeyFields(bool forUpdate = false, bool distinct = false);
f6bcfd97
BP
244 bool Refresh(void);
245 bool GetNext(void) { return(getRec(SQL_FETCH_NEXT)); }
246 bool operator++(int) { return(getRec(SQL_FETCH_NEXT)); }
247
248 /***** These four functions only work with wxDb instances that are defined *****
95ca6a20 249 ***** as not being FwdOnlyCursors *****/
f6bcfd97
BP
250 bool GetPrev(void);
251 bool operator--(int);
252 bool GetFirst(void);
253 bool GetLast(void);
254
255 bool IsCursorClosedOnCommit(void);
256 UWORD GetRowNum(void);
257
4fdae997
GT
258 void BuildSelectStmt(wxString &pSqlStmt, int typeOfSelect, bool distinct);
259 void BuildSelectStmt(wxChar *pSqlStmt, int typeOfSelect, bool distinct);
260
8a39593e
JS
261 void BuildDeleteStmt(wxString &pSqlStmt, int typeOfDel, const wxString &pWhereClause=wxEmptyString);
262 void BuildDeleteStmt(wxChar *pSqlStmt, int typeOfDel, const wxString &pWhereClause=wxEmptyString);
4fdae997 263
549c8cc2
GT
264 void BuildUpdateStmt(wxString &pSqlStmt, int typeOfUpdate, const wxString &pWhereClause=wxEmptyString);
265 void BuildUpdateStmt(wxChar *pSqlStmt, int typeOfUpdate, const wxString &pWhereClause=wxEmptyString);
4fdae997 266
68379eaf
WS
267 void BuildWhereClause(wxString &pWhereClause, int typeOfWhere, const wxString &qualTableName=wxEmptyString, bool useLikeComparison=false);
268 void BuildWhereClause(wxChar *pWhereClause, int typeOfWhere, const wxString &qualTableName=wxEmptyString, bool useLikeComparison=false);
4fdae997 269
f6bcfd97
BP
270#if wxODBC_BACKWARD_COMPATABILITY
271// The following member functions are deprecated. You should use the BuildXxxxxStmt functions (above)
272 void GetSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct)
273 { BuildSelectStmt(pSqlStmt,typeOfSelect,distinct); }
2b63ff5d 274 void GetDeleteStmt(char *pSqlStmt, int typeOfDel, const char *pWhereClause = NULL)
f6bcfd97 275 { BuildDeleteStmt(pSqlStmt,typeOfDel,pWhereClause); }
549c8cc2
GT
276 void GetUpdateStmt(char *pSqlStmt, int typeOfUpdate, const char *pWhereClause = NULL)
277 { BuildUpdateStmt(pSqlStmt,typeOfUpdate,pWhereClause); }
68379eaf
WS
278 void GetWhereClause(char *pWhereClause, int typeOfWhere,
279 const char *qualTableName = NULL, bool useLikeComparison=false)
f6bcfd97
BP
280 { BuildWhereClause(pWhereClause,typeOfWhere,qualTableName,useLikeComparison); }
281#endif
282 bool CanSelectForUpdate(void);
b8032740
GT
283#if wxODBC_BACKWARD_COMPATABILITY
284 bool CanUpdByROWID(void) { return CanUpdateByRowID(); };
285#endif
286 bool CanUpdateByROWID(void);
287 void ClearMemberVar(UWORD colNumber, bool setToNull=false);
68379eaf 288 void ClearMemberVars(bool setToNull=false);
f6bcfd97
BP
289 bool SetQueryTimeout(UDWORD nSeconds);
290
291 wxDbColDef *GetColDefs() { return colDefs; }
b8032740 292 bool SetColDefs(UWORD index, const wxString &fieldName, int dataType,
02cf6fdd 293 void *pData, SWORD cType,
549c8cc2
GT
294 int size, bool keyField = false, bool updateable = true,
295 bool insertAllowed = true, bool derivedColumn = false);
21e05269 296 wxDbColDataPtr *SetColDefs(wxDbColInf *colInfs, UWORD numCols);
f6bcfd97
BP
297
298 bool CloseCursor(HSTMT cursor);
299 bool DeleteCursor(HSTMT *hstmtDel);
300 void SetCursor(HSTMT *hstmtActivate = (void **) wxDB_DEFAULT_CURSOR);
301 HSTMT GetCursor(void) { return(hstmt); }
68379eaf 302 HSTMT *GetNewCursor(bool setCursor = false, bool bindColumns = true);
f6bcfd97
BP
303#if wxODBC_BACKWARD_COMPATABILITY
304// The following member function is deprecated. You should use the GetNewCursor
68379eaf 305 HSTMT *NewCursor(bool setCursor = false, bool bindColumns = true) { return GetNewCursor(setCursor,bindColumns); }
f6bcfd97
BP
306#endif
307
8a39593e 308 ULONG Count(const wxString &args=_T("*"));
f6bcfd97
BP
309 int DB_STATUS(void) { return(pDb->DB_STATUS); }
310
b8032740
GT
311 bool IsColNull(UWORD colNumber) const;
312 bool SetColNull(UWORD colNumber, bool set=true);
68379eaf 313 bool SetColNull(const wxString &colName, bool set=true);
f02d4a64
GT
314#if wxODBC_BACKWARD_COMPATABILITY
315// The following member functions are deprecated. You should use the SetColNull()
b8032740 316 bool SetNull(int colNumber, bool set=true) { return (SetNull(colNumber,set)); }
68379eaf 317 bool SetNull(const char *colName, bool set=true) { return (SetNull(colName,set)); }
f02d4a64 318#endif
154f22b3 319#ifdef __WXDEBUG__
f6bcfd97 320 ULONG GetTableID() { return tableID; }
a2115c88 321#endif
108106cf 322
882fc8a9
GT
323//TODO: Need to Document
324 typedef enum { WX_ROW_MODE_QUERY , WX_ROW_MODE_INDIVIDUAL } rowmode_t;
325 virtual void SetRowMode(const rowmode_t rowmode);
b8032740
GT
326#if wxODBC_BACKWARD_COMPATABILITY
327 virtual wxVariant GetCol(const int colNumber) const { return GetColumn(colNumber); };
328 virtual void SetCol(const int colNumber, const wxVariant value) { return SetColumn(colNumber, value); };
329#endif
330 virtual wxVariant GetColumn(const int colNumber) const ;
331 virtual void SetColumn(const int colNumber, const wxVariant value);
882fc8a9
GT
332 virtual GenericKey GetKey(void);
333 virtual void SetKey(const GenericKey &key);
334
335 private:
336 HSTMT *m_hstmtGridQuery;
337 rowmode_t m_rowmode;
338 size_t m_keysize;
339
340// typedef enum {unmodified=0, UpdatePending, InsertPending } recStatus;
341
342// recStatus get_ModifiedStatus() { return m_recstatus; }
68379eaf 343
882fc8a9
GT
344// void modify() {
345// if (m_recstatus==unmodified)
346// m_recstatus=UpdatePending;
347// }
348// protected:
349// void insertify() {m_recstatus=InsertPending; }
350// void unmodify() {m_recstatus=unmodified; }
351// recStatus m_recstatus;
352//TODO: Need to Document
f6bcfd97 353}; // wxDbTable
108106cf 354
4a8fc2c8
GT
355
356// Change this to 0 to remove use of all deprecated functions
f6bcfd97 357#if wxODBC_BACKWARD_COMPATABILITY
4a8fc2c8 358//#################################################################################
3103e8a9 359//############### DEPRECATED functions for backward compatibility #################
4a8fc2c8
GT
360//#################################################################################
361
362// Backward compability. These will eventually go away
f6bcfd97
BP
363typedef wxDbTable wxTable;
364typedef wxDbIdxDef wxIdxDef;
365typedef wxDbIdxDef CidxDef;
366typedef wxDbColDef wxColDef;
367typedef wxDbColDef CcolDef;
368typedef wxDbColDataPtr wxColDataPtr;
369typedef wxDbColDataPtr CcolDataPtr;
370
371const int ROWID = wxDB_ROWID_LEN;
372const int DEFAULT_CURSOR = wxDB_DEFAULT_CURSOR;
373const bool QUERY_ONLY = wxDB_QUERY_ONLY;
374const bool DISABLE_VIEW = wxDB_DISABLE_VIEW;
4a8fc2c8
GT
375#endif
376
108106cf 377#endif