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font inheritance fixes (patch 983251)
[wxWidgets.git] / src / common / dbtable.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: dbtable.cpp
3 // Purpose: Implementation of the wxDbTable class.
4 // Author: Doug Card
5 // Modified by: George Tasker
6 // Bart Jourquin
7 // Mark Johnson
8 // Created: 9.96
9 // RCS-ID: $Id$
10 // Copyright: (c) 1996 Remstar International, Inc.
11 // Licence: wxWindows licence, plus:
12 // Notice: This class library and its intellectual design are free of charge for use,
13 // modification, enhancement, debugging under the following conditions:
14 // 1) These classes may only be used as part of the implementation of a
15 // wxWidgets-based application
16 // 2) All enhancements and bug fixes are to be submitted back to the wxWidgets
17 // user groups free of all charges for use with the wxWidgets library.
18 // 3) These classes may not be distributed as part of any other class library,
19 // DLL, text (written or electronic), other than a complete distribution of
20 // the wxWidgets GUI development toolkit.
21 ///////////////////////////////////////////////////////////////////////////////
22
23 /*
24 // SYNOPSIS START
25 // SYNOPSIS STOP
26 */
27
28 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
29 #pragma implementation "dbtable.h"
30 #endif
31
32 #include "wx/wxprec.h"
33
34 #ifdef __BORLANDC__
35 #pragma hdrstop
36 #endif
37
38 #ifdef DBDEBUG_CONSOLE
39 #if wxUSE_IOSTREAMH
40 #include <iostream.h>
41 #else
42 #include <iostream>
43 #endif
44 #include "wx/ioswrap.h"
45 #endif
46
47 #ifndef WX_PRECOMP
48 #include "wx/string.h"
49 #include "wx/object.h"
50 #include "wx/list.h"
51 #include "wx/utils.h"
52 #include "wx/log.h"
53 #endif
54 #include "wx/filefn.h"
55
56 #if wxUSE_ODBC
57
58 #include <stdio.h>
59 #include <stdlib.h>
60 #include <string.h>
61
62 #include "wx/dbtable.h"
63
64 #ifdef __UNIX__
65 // The HPUX preprocessor lines below were commented out on 8/20/97
66 // because macros.h currently redefines DEBUG and is unneeded.
67 // # ifdef HPUX
68 // # include <macros.h>
69 // # endif
70 # ifdef LINUX
71 # include <sys/minmax.h>
72 # endif
73 #endif
74
75 ULONG lastTableID = 0;
76
77
78 #ifdef __WXDEBUG__
79 wxList TablesInUse;
80 #endif
81
82
83 void csstrncpyt(wxChar *target, const wxChar *source, int n)
84 {
85 while ( (*target++ = *source++) != '\0' && --n )
86 ;
87
88 *target = '\0';
89 }
90
91
92
93 /********** wxDbColDef::wxDbColDef() Constructor **********/
94 wxDbColDef::wxDbColDef()
95 {
96 Initialize();
97 } // Constructor
98
99
100 bool wxDbColDef::Initialize()
101 {
102 ColName[0] = 0;
103 DbDataType = DB_DATA_TYPE_INTEGER;
104 SqlCtype = SQL_C_LONG;
105 PtrDataObj = NULL;
106 SzDataObj = 0;
107 KeyField = FALSE;
108 Updateable = FALSE;
109 InsertAllowed = FALSE;
110 DerivedCol = FALSE;
111 CbValue = 0;
112 Null = FALSE;
113
114 return TRUE;
115 } // wxDbColDef::Initialize()
116
117
118 /********** wxDbTable::wxDbTable() Constructor **********/
119 wxDbTable::wxDbTable(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
120 const wxString &qryTblName, bool qryOnly, const wxString &tblPath)
121 {
122 if (!initialize(pwxDb, tblName, numColumns, qryTblName, qryOnly, tblPath))
123 cleanup();
124 } // wxDbTable::wxDbTable()
125
126
127 /***** DEPRECATED: use wxDbTable::wxDbTable() format above *****/
128 wxDbTable::wxDbTable(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
129 const wxChar *qryTblName, bool qryOnly, const wxString &tblPath)
130 {
131 wxString tempQryTblName;
132 tempQryTblName = qryTblName;
133 if (!initialize(pwxDb, tblName, numColumns, tempQryTblName, qryOnly, tblPath))
134 cleanup();
135 } // wxDbTable::wxDbTable()
136
137
138 /********** wxDbTable::~wxDbTable() **********/
139 wxDbTable::~wxDbTable()
140 {
141 this->cleanup();
142 } // wxDbTable::~wxDbTable()
143
144
145 bool wxDbTable::initialize(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
146 const wxString &qryTblName, bool qryOnly, const wxString &tblPath)
147 {
148 // Initializing member variables
149 pDb = pwxDb; // Pointer to the wxDb object
150 henv = 0;
151 hdbc = 0;
152 hstmt = 0;
153 m_hstmtGridQuery = 0;
154 hstmtDefault = 0; // Initialized below
155 hstmtCount = 0; // Initialized first time it is needed
156 hstmtInsert = 0;
157 hstmtDelete = 0;
158 hstmtUpdate = 0;
159 hstmtInternal = 0;
160 colDefs = 0;
161 tableID = 0;
162 noCols = numColumns; // Number of cols in the table
163 where.Empty(); // Where clause
164 orderBy.Empty(); // Order By clause
165 from.Empty(); // From clause
166 selectForUpdate = FALSE; // SELECT ... FOR UPDATE; Indicates whether to include the FOR UPDATE phrase
167 queryOnly = qryOnly;
168 insertable = TRUE;
169 tablePath.Empty();
170 tableName.Empty();
171 queryTableName.Empty();
172
173 wxASSERT(tblName.Length());
174 wxASSERT(pDb);
175
176 if (!pDb)
177 return FALSE;
178
179 tableName = tblName; // Table Name
180 if (tblPath.Length())
181 tablePath = tblPath; // Table Path - used for dBase files
182 else
183 tablePath.Empty();
184
185 if (qryTblName.Length()) // Name of the table/view to query
186 queryTableName = qryTblName;
187 else
188 queryTableName = tblName;
189
190 pDb->incrementTableCount();
191
192 wxString s;
193 tableID = ++lastTableID;
194 s.Printf(wxT("wxDbTable constructor (%-20s) tableID:[%6lu] pDb:[%p]"), tblName.c_str(), tableID, pDb);
195
196 #ifdef __WXDEBUG__
197 wxTablesInUse *tableInUse;
198 tableInUse = new wxTablesInUse();
199 tableInUse->tableName = tblName;
200 tableInUse->tableID = tableID;
201 tableInUse->pDb = pDb;
202 TablesInUse.Append(tableInUse);
203 #endif
204
205 pDb->WriteSqlLog(s);
206
207 // Grab the HENV and HDBC from the wxDb object
208 henv = pDb->GetHENV();
209 hdbc = pDb->GetHDBC();
210
211 // Allocate space for column definitions
212 if (noCols)
213 colDefs = new wxDbColDef[noCols]; // Points to the first column definition
214
215 // Allocate statement handles for the table
216 if (!queryOnly)
217 {
218 // Allocate a separate statement handle for performing inserts
219 if (SQLAllocStmt(hdbc, &hstmtInsert) != SQL_SUCCESS)
220 pDb->DispAllErrors(henv, hdbc);
221 // Allocate a separate statement handle for performing deletes
222 if (SQLAllocStmt(hdbc, &hstmtDelete) != SQL_SUCCESS)
223 pDb->DispAllErrors(henv, hdbc);
224 // Allocate a separate statement handle for performing updates
225 if (SQLAllocStmt(hdbc, &hstmtUpdate) != SQL_SUCCESS)
226 pDb->DispAllErrors(henv, hdbc);
227 }
228 // Allocate a separate statement handle for internal use
229 if (SQLAllocStmt(hdbc, &hstmtInternal) != SQL_SUCCESS)
230 pDb->DispAllErrors(henv, hdbc);
231
232 // Set the cursor type for the statement handles
233 cursorType = SQL_CURSOR_STATIC;
234
235 if (SQLSetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
236 {
237 // Check to see if cursor type is supported
238 pDb->GetNextError(henv, hdbc, hstmtInternal);
239 if (! wxStrcmp(pDb->sqlState, wxT("01S02"))) // Option Value Changed
240 {
241 // Datasource does not support static cursors. Driver
242 // will substitute a cursor type. Call SQLGetStmtOption()
243 // to determine which cursor type was selected.
244 if (SQLGetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, &cursorType) != SQL_SUCCESS)
245 pDb->DispAllErrors(henv, hdbc, hstmtInternal);
246 #ifdef DBDEBUG_CONSOLE
247 cout << wxT("Static cursor changed to: ");
248 switch(cursorType)
249 {
250 case SQL_CURSOR_FORWARD_ONLY:
251 cout << wxT("Forward Only");
252 break;
253 case SQL_CURSOR_STATIC:
254 cout << wxT("Static");
255 break;
256 case SQL_CURSOR_KEYSET_DRIVEN:
257 cout << wxT("Keyset Driven");
258 break;
259 case SQL_CURSOR_DYNAMIC:
260 cout << wxT("Dynamic");
261 break;
262 }
263 cout << endl << endl;
264 #endif
265 // BJO20000425
266 if (pDb->FwdOnlyCursors() && cursorType != SQL_CURSOR_FORWARD_ONLY)
267 {
268 // Force the use of a forward only cursor...
269 cursorType = SQL_CURSOR_FORWARD_ONLY;
270 if (SQLSetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
271 {
272 // Should never happen
273 pDb->GetNextError(henv, hdbc, hstmtInternal);
274 return FALSE;
275 }
276 }
277 }
278 else
279 {
280 pDb->DispNextError();
281 pDb->DispAllErrors(henv, hdbc, hstmtInternal);
282 }
283 }
284 #ifdef DBDEBUG_CONSOLE
285 else
286 cout << wxT("Cursor Type set to STATIC") << endl << endl;
287 #endif
288
289 if (!queryOnly)
290 {
291 // Set the cursor type for the INSERT statement handle
292 if (SQLSetStmtOption(hstmtInsert, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
293 pDb->DispAllErrors(henv, hdbc, hstmtInsert);
294 // Set the cursor type for the DELETE statement handle
295 if (SQLSetStmtOption(hstmtDelete, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
296 pDb->DispAllErrors(henv, hdbc, hstmtDelete);
297 // Set the cursor type for the UPDATE statement handle
298 if (SQLSetStmtOption(hstmtUpdate, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
299 pDb->DispAllErrors(henv, hdbc, hstmtUpdate);
300 }
301
302 // Make the default cursor the active cursor
303 hstmtDefault = GetNewCursor(FALSE,FALSE);
304 wxASSERT(hstmtDefault);
305 hstmt = *hstmtDefault;
306
307 return TRUE;
308
309 } // wxDbTable::initialize()
310
311
312 void wxDbTable::cleanup()
313 {
314 wxString s;
315 if (pDb)
316 {
317 s.Printf(wxT("wxDbTable destructor (%-20s) tableID:[%6lu] pDb:[%p]"), tableName.c_str(), tableID, pDb);
318 pDb->WriteSqlLog(s);
319 }
320
321 #ifdef __WXDEBUG__
322 if (tableID)
323 {
324 bool found = FALSE;
325
326 wxList::compatibility_iterator pNode;
327 pNode = TablesInUse.GetFirst();
328 while (pNode && !found)
329 {
330 if (((wxTablesInUse *)pNode->GetData())->tableID == tableID)
331 {
332 found = TRUE;
333 delete (wxTablesInUse *)pNode->GetData();
334 TablesInUse.Erase(pNode);
335 }
336 else
337 pNode = pNode->GetNext();
338 }
339 if (!found)
340 {
341 wxString msg;
342 msg.Printf(wxT("Unable to find the tableID in the linked\nlist of tables in use.\n\n%s"),s.c_str());
343 wxLogDebug (msg,wxT("NOTICE..."));
344 }
345 }
346 #endif
347
348 // Decrement the wxDb table count
349 if (pDb)
350 pDb->decrementTableCount();
351
352 // Delete memory allocated for column definitions
353 if (colDefs)
354 delete [] colDefs;
355
356 // Free statement handles
357 if (!queryOnly)
358 {
359 if (hstmtInsert)
360 {
361 /*
362 ODBC 3.0 says to use this form
363 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
364 */
365 if (SQLFreeStmt(hstmtInsert, SQL_DROP) != SQL_SUCCESS)
366 pDb->DispAllErrors(henv, hdbc);
367 }
368
369 if (hstmtDelete)
370 {
371 /*
372 ODBC 3.0 says to use this form
373 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
374 */
375 if (SQLFreeStmt(hstmtDelete, SQL_DROP) != SQL_SUCCESS)
376 pDb->DispAllErrors(henv, hdbc);
377 }
378
379 if (hstmtUpdate)
380 {
381 /*
382 ODBC 3.0 says to use this form
383 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
384 */
385 if (SQLFreeStmt(hstmtUpdate, SQL_DROP) != SQL_SUCCESS)
386 pDb->DispAllErrors(henv, hdbc);
387 }
388 }
389
390 if (hstmtInternal)
391 {
392 if (SQLFreeStmt(hstmtInternal, SQL_DROP) != SQL_SUCCESS)
393 pDb->DispAllErrors(henv, hdbc);
394 }
395
396 // Delete dynamically allocated cursors
397 if (hstmtDefault)
398 DeleteCursor(hstmtDefault);
399
400 if (hstmtCount)
401 DeleteCursor(hstmtCount);
402
403 if (m_hstmtGridQuery)
404 DeleteCursor(m_hstmtGridQuery);
405
406 } // wxDbTable::cleanup()
407
408
409 /***************************** PRIVATE FUNCTIONS *****************************/
410
411
412 void wxDbTable::setCbValueForColumn(int columnIndex)
413 {
414 switch(colDefs[columnIndex].DbDataType)
415 {
416 case DB_DATA_TYPE_VARCHAR:
417 if (colDefs[columnIndex].Null)
418 colDefs[columnIndex].CbValue = SQL_NULL_DATA;
419 else
420 colDefs[columnIndex].CbValue = SQL_NTS;
421 break;
422 case DB_DATA_TYPE_INTEGER:
423 if (colDefs[columnIndex].Null)
424 colDefs[columnIndex].CbValue = SQL_NULL_DATA;
425 else
426 colDefs[columnIndex].CbValue = 0;
427 break;
428 case DB_DATA_TYPE_FLOAT:
429 if (colDefs[columnIndex].Null)
430 colDefs[columnIndex].CbValue = SQL_NULL_DATA;
431 else
432 colDefs[columnIndex].CbValue = 0;
433 break;
434 case DB_DATA_TYPE_DATE:
435 if (colDefs[columnIndex].Null)
436 colDefs[columnIndex].CbValue = SQL_NULL_DATA;
437 else
438 colDefs[columnIndex].CbValue = 0;
439 break;
440 case DB_DATA_TYPE_BLOB:
441 if (colDefs[columnIndex].Null)
442 colDefs[columnIndex].CbValue = SQL_NULL_DATA;
443 else
444 if (colDefs[columnIndex].SqlCtype == SQL_C_CHAR)
445 colDefs[columnIndex].CbValue = SQL_NTS;
446 else
447 colDefs[columnIndex].CbValue = SQL_LEN_DATA_AT_EXEC(colDefs[columnIndex].SzDataObj);
448 break;
449 }
450 }
451
452 /********** wxDbTable::bindParams() **********/
453 bool wxDbTable::bindParams(bool forUpdate)
454 {
455 wxASSERT(!queryOnly);
456 if (queryOnly)
457 return(FALSE);
458
459 SWORD fSqlType = 0;
460 SDWORD precision = 0;
461 SWORD scale = 0;
462
463 // Bind each column of the table that should be bound
464 // to a parameter marker
465 int i;
466 UWORD colNo;
467
468 for (i=0, colNo=1; i < noCols; i++)
469 {
470 if (forUpdate)
471 {
472 if (!colDefs[i].Updateable)
473 continue;
474 }
475 else
476 {
477 if (!colDefs[i].InsertAllowed)
478 continue;
479 }
480
481 switch(colDefs[i].DbDataType)
482 {
483 case DB_DATA_TYPE_VARCHAR:
484 fSqlType = pDb->GetTypeInfVarchar().FsqlType;
485 precision = colDefs[i].SzDataObj;
486 scale = 0;
487 break;
488 case DB_DATA_TYPE_INTEGER:
489 fSqlType = pDb->GetTypeInfInteger().FsqlType;
490 precision = pDb->GetTypeInfInteger().Precision;
491 scale = 0;
492 break;
493 case DB_DATA_TYPE_FLOAT:
494 fSqlType = pDb->GetTypeInfFloat().FsqlType;
495 precision = pDb->GetTypeInfFloat().Precision;
496 scale = pDb->GetTypeInfFloat().MaximumScale;
497 // SQL Sybase Anywhere v5.5 returned a negative number for the
498 // MaxScale. This caused ODBC to kick out an error on ibscale.
499 // I check for this here and set the scale = precision.
500 //if (scale < 0)
501 // scale = (short) precision;
502 break;
503 case DB_DATA_TYPE_DATE:
504 fSqlType = pDb->GetTypeInfDate().FsqlType;
505 precision = pDb->GetTypeInfDate().Precision;
506 scale = 0;
507 break;
508 case DB_DATA_TYPE_BLOB:
509 fSqlType = pDb->GetTypeInfBlob().FsqlType;
510 precision = colDefs[i].SzDataObj;
511 scale = 0;
512 break;
513 }
514
515 setCbValueForColumn(i);
516
517 if (forUpdate)
518 {
519 if (SQLBindParameter(hstmtUpdate, colNo++, SQL_PARAM_INPUT, colDefs[i].SqlCtype,
520 fSqlType, precision, scale, (UCHAR*) colDefs[i].PtrDataObj,
521 precision+1, &colDefs[i].CbValue) != SQL_SUCCESS)
522 {
523 return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
524 }
525 }
526 else
527 {
528 if (SQLBindParameter(hstmtInsert, colNo++, SQL_PARAM_INPUT, colDefs[i].SqlCtype,
529 fSqlType, precision, scale, (UCHAR*) colDefs[i].PtrDataObj,
530 precision+1, &colDefs[i].CbValue) != SQL_SUCCESS)
531 {
532 return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
533 }
534 }
535 }
536
537 // Completed successfully
538 return(TRUE);
539
540 } // wxDbTable::bindParams()
541
542
543 /********** wxDbTable::bindInsertParams() **********/
544 bool wxDbTable::bindInsertParams(void)
545 {
546 return bindParams(FALSE);
547 } // wxDbTable::bindInsertParams()
548
549
550 /********** wxDbTable::bindUpdateParams() **********/
551 bool wxDbTable::bindUpdateParams(void)
552 {
553 return bindParams(TRUE);
554 } // wxDbTable::bindUpdateParams()
555
556
557 /********** wxDbTable::bindCols() **********/
558 bool wxDbTable::bindCols(HSTMT cursor)
559 {
560 static SDWORD cb;
561
562 // Bind each column of the table to a memory address for fetching data
563 UWORD i;
564 for (i = 0; i < noCols; i++)
565 {
566 cb = colDefs[i].CbValue;
567 if (SQLBindCol(cursor, (UWORD)(i+1), colDefs[i].SqlCtype, (UCHAR*) colDefs[i].PtrDataObj,
568 colDefs[i].SzDataObj, &cb ) != SQL_SUCCESS)
569 return (pDb->DispAllErrors(henv, hdbc, cursor));
570 }
571
572 // Completed successfully
573 return(TRUE);
574
575 } // wxDbTable::bindCols()
576
577
578 /********** wxDbTable::getRec() **********/
579 bool wxDbTable::getRec(UWORD fetchType)
580 {
581 RETCODE retcode;
582
583 if (!pDb->FwdOnlyCursors())
584 {
585 // Fetch the NEXT, PREV, FIRST or LAST record, depending on fetchType
586 UDWORD cRowsFetched;
587 UWORD rowStatus;
588
589 retcode = SQLExtendedFetch(hstmt, fetchType, 0, &cRowsFetched, &rowStatus);
590 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
591 {
592 if (retcode == SQL_NO_DATA_FOUND)
593 return(FALSE);
594 else
595 return(pDb->DispAllErrors(henv, hdbc, hstmt));
596 }
597 else
598 {
599 // Set the Null member variable to indicate the Null state
600 // of each column just read in.
601 int i;
602 for (i = 0; i < noCols; i++)
603 colDefs[i].Null = (colDefs[i].CbValue == SQL_NULL_DATA);
604 }
605 }
606 else
607 {
608 // Fetch the next record from the record set
609 retcode = SQLFetch(hstmt);
610 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
611 {
612 if (retcode == SQL_NO_DATA_FOUND)
613 return(FALSE);
614 else
615 return(pDb->DispAllErrors(henv, hdbc, hstmt));
616 }
617 else
618 {
619 // Set the Null member variable to indicate the Null state
620 // of each column just read in.
621 int i;
622 for (i = 0; i < noCols; i++)
623 colDefs[i].Null = (colDefs[i].CbValue == SQL_NULL_DATA);
624 }
625 }
626
627 // Completed successfully
628 return(TRUE);
629
630 } // wxDbTable::getRec()
631
632
633 /********** wxDbTable::execDelete() **********/
634 bool wxDbTable::execDelete(const wxString &pSqlStmt)
635 {
636 RETCODE retcode;
637
638 // Execute the DELETE statement
639 retcode = SQLExecDirect(hstmtDelete, (SQLTCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
640
641 if (retcode == SQL_SUCCESS ||
642 retcode == SQL_NO_DATA_FOUND ||
643 retcode == SQL_SUCCESS_WITH_INFO)
644 {
645 // Record deleted successfully
646 return(TRUE);
647 }
648
649 // Problem deleting record
650 return(pDb->DispAllErrors(henv, hdbc, hstmtDelete));
651
652 } // wxDbTable::execDelete()
653
654
655 /********** wxDbTable::execUpdate() **********/
656 bool wxDbTable::execUpdate(const wxString &pSqlStmt)
657 {
658 RETCODE retcode;
659
660 // Execute the UPDATE statement
661 retcode = SQLExecDirect(hstmtUpdate, (SQLTCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
662
663 if (retcode == SQL_SUCCESS ||
664 retcode == SQL_NO_DATA_FOUND ||
665 retcode == SQL_SUCCESS_WITH_INFO)
666 {
667 // Record updated successfully
668 return(TRUE);
669 }
670 else if (retcode == SQL_NEED_DATA)
671 {
672 PTR pParmID;
673 retcode = SQLParamData(hstmtUpdate, &pParmID);
674 while (retcode == SQL_NEED_DATA)
675 {
676 // Find the parameter
677 int i;
678 for (i=0; i < noCols; i++)
679 {
680 if (colDefs[i].PtrDataObj == pParmID)
681 {
682 // We found it. Store the parameter.
683 retcode = SQLPutData(hstmtUpdate, pParmID, colDefs[i].SzDataObj);
684 if (retcode != SQL_SUCCESS)
685 {
686 pDb->DispNextError();
687 return pDb->DispAllErrors(henv, hdbc, hstmtUpdate);
688 }
689 break;
690 }
691 }
692 retcode = SQLParamData(hstmtUpdate, &pParmID);
693 }
694 if (retcode == SQL_SUCCESS ||
695 retcode == SQL_NO_DATA_FOUND ||
696 retcode == SQL_SUCCESS_WITH_INFO)
697 {
698 // Record updated successfully
699 return(TRUE);
700 }
701 }
702
703 // Problem updating record
704 return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
705
706 } // wxDbTable::execUpdate()
707
708
709 /********** wxDbTable::query() **********/
710 bool wxDbTable::query(int queryType, bool forUpdate, bool distinct, const wxString &pSqlStmt)
711 {
712 wxString sqlStmt;
713
714 if (forUpdate)
715 // The user may wish to select for update, but the DBMS may not be capable
716 selectForUpdate = CanSelectForUpdate();
717 else
718 selectForUpdate = FALSE;
719
720 // Set the SQL SELECT string
721 if (queryType != DB_SELECT_STATEMENT) // A select statement was not passed in,
722 { // so generate a select statement.
723 BuildSelectStmt(sqlStmt, queryType, distinct);
724 pDb->WriteSqlLog(sqlStmt);
725 }
726
727 // Make sure the cursor is closed first
728 if (!CloseCursor(hstmt))
729 return(FALSE);
730
731 // Execute the SQL SELECT statement
732 int retcode;
733 retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) (queryType == DB_SELECT_STATEMENT ? pSqlStmt.c_str() : sqlStmt.c_str()), SQL_NTS);
734 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
735 return(pDb->DispAllErrors(henv, hdbc, hstmt));
736
737 // Completed successfully
738 return(TRUE);
739
740 } // wxDbTable::query()
741
742
743 /***************************** PUBLIC FUNCTIONS *****************************/
744
745
746 /********** wxDbTable::Open() **********/
747 bool wxDbTable::Open(bool checkPrivileges, bool checkTableExists)
748 {
749 if (!pDb)
750 return FALSE;
751
752 int i;
753 wxString sqlStmt;
754 wxString s;
755 // int NumKeyCols=0;
756
757 // Calculate the maximum size of the concatenated
758 // keys for use with wxDbGrid
759 m_keysize = 0;
760 for (i=0; i < noCols; i++)
761 {
762 if (colDefs[i].KeyField)
763 {
764 // NumKeyCols++;
765 m_keysize += colDefs[i].SzDataObj;
766 }
767 }
768
769 s.Empty();
770 // Verify that the table exists in the database
771 if (checkTableExists && !pDb->TableExists(tableName, pDb->GetUsername(), tablePath))
772 {
773 s = wxT("Table/view does not exist in the database");
774 if ( *(pDb->dbInf.accessibleTables) == wxT('Y'))
775 s += wxT(", or you have no permissions.\n");
776 else
777 s += wxT(".\n");
778 }
779 else if (checkPrivileges)
780 {
781 // Verify the user has rights to access the table.
782 // Shortcut boolean evaluation to optimize out call to
783 // TablePrivileges
784 //
785 // Unfortunately this optimization doesn't seem to be
786 // reliable!
787 if (// *(pDb->dbInf.accessibleTables) == 'N' &&
788 !pDb->TablePrivileges(tableName,wxT("SELECT"), pDb->GetUsername(), pDb->GetUsername(), tablePath))
789 s = wxT("Current logged in user does not have sufficient privileges to access this table.\n");
790 }
791
792 if (!s.IsEmpty())
793 {
794 wxString p;
795
796 if (!tablePath.IsEmpty())
797 p.Printf(wxT("Error opening '%s/%s'.\n"),tablePath.c_str(),tableName.c_str());
798 else
799 p.Printf(wxT("Error opening '%s'.\n"), tableName.c_str());
800
801 p += s;
802 pDb->LogError(p.GetData());
803
804 return(FALSE);
805 }
806
807 // Bind the member variables for field exchange between
808 // the wxDbTable object and the ODBC record.
809 if (!queryOnly)
810 {
811 if (!bindInsertParams()) // Inserts
812 return(FALSE);
813
814 if (!bindUpdateParams()) // Updates
815 return(FALSE);
816 }
817
818 if (!bindCols(*hstmtDefault)) // Selects
819 return(FALSE);
820
821 if (!bindCols(hstmtInternal)) // Internal use only
822 return(FALSE);
823
824 /*
825 * Do NOT bind the hstmtCount cursor!!!
826 */
827
828 // Build an insert statement using parameter markers
829 if (!queryOnly && noCols > 0)
830 {
831 bool needComma = FALSE;
832 sqlStmt.Printf(wxT("INSERT INTO %s ("),
833 pDb->SQLTableName(tableName.c_str()).c_str());
834 for (i = 0; i < noCols; i++)
835 {
836 if (! colDefs[i].InsertAllowed)
837 continue;
838 if (needComma)
839 sqlStmt += wxT(",");
840 sqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
841 // sqlStmt += colDefs[i].ColName;
842 needComma = TRUE;
843 }
844 needComma = FALSE;
845 sqlStmt += wxT(") VALUES (");
846
847 int insertableCount = 0;
848
849 for (i = 0; i < noCols; i++)
850 {
851 if (! colDefs[i].InsertAllowed)
852 continue;
853 if (needComma)
854 sqlStmt += wxT(",");
855 sqlStmt += wxT("?");
856 needComma = TRUE;
857 insertableCount++;
858 }
859 sqlStmt += wxT(")");
860
861 // Prepare the insert statement for execution
862 if (insertableCount)
863 {
864 if (SQLPrepare(hstmtInsert, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
865 return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
866 }
867 else
868 insertable = FALSE;
869 }
870
871 // Completed successfully
872 return(TRUE);
873
874 } // wxDbTable::Open()
875
876
877 /********** wxDbTable::Query() **********/
878 bool wxDbTable::Query(bool forUpdate, bool distinct)
879 {
880
881 return(query(DB_SELECT_WHERE, forUpdate, distinct));
882
883 } // wxDbTable::Query()
884
885
886 /********** wxDbTable::QueryBySqlStmt() **********/
887 bool wxDbTable::QueryBySqlStmt(const wxString &pSqlStmt)
888 {
889 pDb->WriteSqlLog(pSqlStmt);
890
891 return(query(DB_SELECT_STATEMENT, FALSE, FALSE, pSqlStmt));
892
893 } // wxDbTable::QueryBySqlStmt()
894
895
896 /********** wxDbTable::QueryMatching() **********/
897 bool wxDbTable::QueryMatching(bool forUpdate, bool distinct)
898 {
899
900 return(query(DB_SELECT_MATCHING, forUpdate, distinct));
901
902 } // wxDbTable::QueryMatching()
903
904
905 /********** wxDbTable::QueryOnKeyFields() **********/
906 bool wxDbTable::QueryOnKeyFields(bool forUpdate, bool distinct)
907 {
908
909 return(query(DB_SELECT_KEYFIELDS, forUpdate, distinct));
910
911 } // wxDbTable::QueryOnKeyFields()
912
913
914 /********** wxDbTable::GetPrev() **********/
915 bool wxDbTable::GetPrev(void)
916 {
917 if (pDb->FwdOnlyCursors())
918 {
919 wxFAIL_MSG(wxT("GetPrev()::Backward scrolling cursors are not enabled for this instance of wxDbTable"));
920 return FALSE;
921 }
922 else
923 return(getRec(SQL_FETCH_PRIOR));
924
925 } // wxDbTable::GetPrev()
926
927
928 /********** wxDbTable::operator-- **********/
929 bool wxDbTable::operator--(int)
930 {
931 if (pDb->FwdOnlyCursors())
932 {
933 wxFAIL_MSG(wxT("operator--:Backward scrolling cursors are not enabled for this instance of wxDbTable"));
934 return FALSE;
935 }
936 else
937 return(getRec(SQL_FETCH_PRIOR));
938
939 } // wxDbTable::operator--
940
941
942 /********** wxDbTable::GetFirst() **********/
943 bool wxDbTable::GetFirst(void)
944 {
945 if (pDb->FwdOnlyCursors())
946 {
947 wxFAIL_MSG(wxT("GetFirst():Backward scrolling cursors are not enabled for this instance of wxDbTable"));
948 return FALSE;
949 }
950 else
951 return(getRec(SQL_FETCH_FIRST));
952
953 } // wxDbTable::GetFirst()
954
955
956 /********** wxDbTable::GetLast() **********/
957 bool wxDbTable::GetLast(void)
958 {
959 if (pDb->FwdOnlyCursors())
960 {
961 wxFAIL_MSG(wxT("GetLast()::Backward scrolling cursors are not enabled for this instance of wxDbTable"));
962 return FALSE;
963 }
964 else
965 return(getRec(SQL_FETCH_LAST));
966
967 } // wxDbTable::GetLast()
968
969
970 /********** wxDbTable::BuildDeleteStmt() **********/
971 void wxDbTable::BuildDeleteStmt(wxString &pSqlStmt, int typeOfDel, const wxString &pWhereClause)
972 {
973 wxASSERT(!queryOnly);
974 if (queryOnly)
975 return;
976
977 wxString whereClause;
978
979 whereClause.Empty();
980
981 // Handle the case of DeleteWhere() and the where clause is blank. It should
982 // delete all records from the database in this case.
983 if (typeOfDel == DB_DEL_WHERE && (pWhereClause.Length() == 0))
984 {
985 pSqlStmt.Printf(wxT("DELETE FROM %s"),
986 pDb->SQLTableName(tableName.c_str()).c_str());
987 return;
988 }
989
990 pSqlStmt.Printf(wxT("DELETE FROM %s WHERE "),
991 pDb->SQLTableName(tableName.c_str()).c_str());
992
993 // Append the WHERE clause to the SQL DELETE statement
994 switch(typeOfDel)
995 {
996 case DB_DEL_KEYFIELDS:
997 // If the datasource supports the ROWID column, build
998 // the where on ROWID for efficiency purposes.
999 // e.g. DELETE FROM PARTS WHERE ROWID = '111.222.333'
1000 if (CanUpdByROWID())
1001 {
1002 SDWORD cb;
1003 wxChar rowid[wxDB_ROWID_LEN+1];
1004
1005 // Get the ROWID value. If not successful retreiving the ROWID,
1006 // simply fall down through the code and build the WHERE clause
1007 // based on the key fields.
1008 if (SQLGetData(hstmt, (UWORD)(noCols+1), SQL_C_CHAR, (UCHAR*) rowid, wxDB_ROWID_LEN, &cb) == SQL_SUCCESS)
1009 {
1010 pSqlStmt += wxT("ROWID = '");
1011 pSqlStmt += rowid;
1012 pSqlStmt += wxT("'");
1013 break;
1014 }
1015 }
1016 // Unable to delete by ROWID, so build a WHERE
1017 // clause based on the keyfields.
1018 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS);
1019 pSqlStmt += whereClause;
1020 break;
1021 case DB_DEL_WHERE:
1022 pSqlStmt += pWhereClause;
1023 break;
1024 case DB_DEL_MATCHING:
1025 BuildWhereClause(whereClause, DB_WHERE_MATCHING);
1026 pSqlStmt += whereClause;
1027 break;
1028 }
1029
1030 } // BuildDeleteStmt()
1031
1032
1033 /***** DEPRECATED: use wxDbTable::BuildDeleteStmt(wxString &....) form *****/
1034 void wxDbTable::BuildDeleteStmt(wxChar *pSqlStmt, int typeOfDel, const wxString &pWhereClause)
1035 {
1036 wxString tempSqlStmt;
1037 BuildDeleteStmt(tempSqlStmt, typeOfDel, pWhereClause);
1038 wxStrcpy(pSqlStmt, tempSqlStmt);
1039 } // wxDbTable::BuildDeleteStmt()
1040
1041
1042 /********** wxDbTable::BuildSelectStmt() **********/
1043 void wxDbTable::BuildSelectStmt(wxString &pSqlStmt, int typeOfSelect, bool distinct)
1044 {
1045 wxString whereClause;
1046 whereClause.Empty();
1047
1048 // Build a select statement to query the database
1049 pSqlStmt = wxT("SELECT ");
1050
1051 // SELECT DISTINCT values only?
1052 if (distinct)
1053 pSqlStmt += wxT("DISTINCT ");
1054
1055 // Was a FROM clause specified to join tables to the base table?
1056 // Available for ::Query() only!!!
1057 bool appendFromClause = FALSE;
1058 #if wxODBC_BACKWARD_COMPATABILITY
1059 if (typeOfSelect == DB_SELECT_WHERE && from && wxStrlen(from))
1060 appendFromClause = TRUE;
1061 #else
1062 if (typeOfSelect == DB_SELECT_WHERE && from.Length())
1063 appendFromClause = TRUE;
1064 #endif
1065
1066 // Add the column list
1067 int i;
1068 wxString tStr;
1069 for (i = 0; i < noCols; i++)
1070 {
1071 tStr = colDefs[i].ColName;
1072 // If joining tables, the base table column names must be qualified to avoid ambiguity
1073 if ((appendFromClause || pDb->Dbms() == dbmsACCESS) && !tStr.Find(wxT('.')))
1074 {
1075 pSqlStmt += pDb->SQLTableName(queryTableName.c_str());
1076 pSqlStmt += wxT(".");
1077 }
1078 pSqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1079 if (i + 1 < noCols)
1080 pSqlStmt += wxT(",");
1081 }
1082
1083 // If the datasource supports ROWID, get this column as well. Exception: Don't retrieve
1084 // the ROWID if querying distinct records. The rowid will always be unique.
1085 if (!distinct && CanUpdByROWID())
1086 {
1087 // If joining tables, the base table column names must be qualified to avoid ambiguity
1088 if (appendFromClause || pDb->Dbms() == dbmsACCESS)
1089 {
1090 pSqlStmt += wxT(",");
1091 pSqlStmt += pDb->SQLTableName(queryTableName);
1092 // pSqlStmt += queryTableName;
1093 pSqlStmt += wxT(".ROWID");
1094 }
1095 else
1096 pSqlStmt += wxT(",ROWID");
1097 }
1098
1099 // Append the FROM tablename portion
1100 pSqlStmt += wxT(" FROM ");
1101 pSqlStmt += pDb->SQLTableName(queryTableName);
1102 // pSqlStmt += queryTableName;
1103
1104 // Sybase uses the HOLDLOCK keyword to lock a record during query.
1105 // The HOLDLOCK keyword follows the table name in the from clause.
1106 // Each table in the from clause must specify HOLDLOCK or
1107 // NOHOLDLOCK (the default). Note: The "FOR UPDATE" clause
1108 // is parsed but ignored in SYBASE Transact-SQL.
1109 if (selectForUpdate && (pDb->Dbms() == dbmsSYBASE_ASA || pDb->Dbms() == dbmsSYBASE_ASE))
1110 pSqlStmt += wxT(" HOLDLOCK");
1111
1112 if (appendFromClause)
1113 pSqlStmt += from;
1114
1115 // Append the WHERE clause. Either append the where clause for the class
1116 // or build a where clause. The typeOfSelect determines this.
1117 switch(typeOfSelect)
1118 {
1119 case DB_SELECT_WHERE:
1120 #if wxODBC_BACKWARD_COMPATABILITY
1121 if (where && wxStrlen(where)) // May not want a where clause!!!
1122 #else
1123 if (where.Length()) // May not want a where clause!!!
1124 #endif
1125 {
1126 pSqlStmt += wxT(" WHERE ");
1127 pSqlStmt += where;
1128 }
1129 break;
1130 case DB_SELECT_KEYFIELDS:
1131 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS);
1132 if (whereClause.Length())
1133 {
1134 pSqlStmt += wxT(" WHERE ");
1135 pSqlStmt += whereClause;
1136 }
1137 break;
1138 case DB_SELECT_MATCHING:
1139 BuildWhereClause(whereClause, DB_WHERE_MATCHING);
1140 if (whereClause.Length())
1141 {
1142 pSqlStmt += wxT(" WHERE ");
1143 pSqlStmt += whereClause;
1144 }
1145 break;
1146 }
1147
1148 // Append the ORDER BY clause
1149 #if wxODBC_BACKWARD_COMPATABILITY
1150 if (orderBy && wxStrlen(orderBy))
1151 #else
1152 if (orderBy.Length())
1153 #endif
1154 {
1155 pSqlStmt += wxT(" ORDER BY ");
1156 pSqlStmt += orderBy;
1157 }
1158
1159 // SELECT FOR UPDATE if told to do so and the datasource is capable. Sybase
1160 // parses the FOR UPDATE clause but ignores it. See the comment above on the
1161 // HOLDLOCK for Sybase.
1162 if (selectForUpdate && CanSelectForUpdate())
1163 pSqlStmt += wxT(" FOR UPDATE");
1164
1165 } // wxDbTable::BuildSelectStmt()
1166
1167
1168 /***** DEPRECATED: use wxDbTable::BuildSelectStmt(wxString &....) form *****/
1169 void wxDbTable::BuildSelectStmt(wxChar *pSqlStmt, int typeOfSelect, bool distinct)
1170 {
1171 wxString tempSqlStmt;
1172 BuildSelectStmt(tempSqlStmt, typeOfSelect, distinct);
1173 wxStrcpy(pSqlStmt, tempSqlStmt);
1174 } // wxDbTable::BuildSelectStmt()
1175
1176
1177 /********** wxDbTable::BuildUpdateStmt() **********/
1178 void wxDbTable::BuildUpdateStmt(wxString &pSqlStmt, int typeOfUpd, const wxString &pWhereClause)
1179 {
1180 wxASSERT(!queryOnly);
1181 if (queryOnly)
1182 return;
1183
1184 wxString whereClause;
1185 whereClause.Empty();
1186
1187 bool firstColumn = TRUE;
1188
1189 pSqlStmt.Printf(wxT("UPDATE %s SET "),
1190 pDb->SQLTableName(tableName.c_str()).c_str());
1191
1192 // Append a list of columns to be updated
1193 int i;
1194 for (i = 0; i < noCols; i++)
1195 {
1196 // Only append Updateable columns
1197 if (colDefs[i].Updateable)
1198 {
1199 if (!firstColumn)
1200 pSqlStmt += wxT(",");
1201 else
1202 firstColumn = FALSE;
1203
1204 pSqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1205 // pSqlStmt += colDefs[i].ColName;
1206 pSqlStmt += wxT(" = ?");
1207 }
1208 }
1209
1210 // Append the WHERE clause to the SQL UPDATE statement
1211 pSqlStmt += wxT(" WHERE ");
1212 switch(typeOfUpd)
1213 {
1214 case DB_UPD_KEYFIELDS:
1215 // If the datasource supports the ROWID column, build
1216 // the where on ROWID for efficiency purposes.
1217 // e.g. UPDATE PARTS SET Col1 = ?, Col2 = ? WHERE ROWID = '111.222.333'
1218 if (CanUpdByROWID())
1219 {
1220 SDWORD cb;
1221 wxChar rowid[wxDB_ROWID_LEN+1];
1222
1223 // Get the ROWID value. If not successful retreiving the ROWID,
1224 // simply fall down through the code and build the WHERE clause
1225 // based on the key fields.
1226 if (SQLGetData(hstmt, (UWORD)(noCols+1), SQL_C_CHAR, (UCHAR*) rowid, wxDB_ROWID_LEN, &cb) == SQL_SUCCESS)
1227 {
1228 pSqlStmt += wxT("ROWID = '");
1229 pSqlStmt += rowid;
1230 pSqlStmt += wxT("'");
1231 break;
1232 }
1233 }
1234 // Unable to delete by ROWID, so build a WHERE
1235 // clause based on the keyfields.
1236 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS);
1237 pSqlStmt += whereClause;
1238 break;
1239 case DB_UPD_WHERE:
1240 pSqlStmt += pWhereClause;
1241 break;
1242 }
1243 } // BuildUpdateStmt()
1244
1245
1246 /***** DEPRECATED: use wxDbTable::BuildUpdateStmt(wxString &....) form *****/
1247 void wxDbTable::BuildUpdateStmt(wxChar *pSqlStmt, int typeOfUpd, const wxString &pWhereClause)
1248 {
1249 wxString tempSqlStmt;
1250 BuildUpdateStmt(tempSqlStmt, typeOfUpd, pWhereClause);
1251 wxStrcpy(pSqlStmt, tempSqlStmt);
1252 } // BuildUpdateStmt()
1253
1254
1255 /********** wxDbTable::BuildWhereClause() **********/
1256 void wxDbTable::BuildWhereClause(wxString &pWhereClause, int typeOfWhere,
1257 const wxString &qualTableName, bool useLikeComparison)
1258 /*
1259 * Note: BuildWhereClause() currently ignores timestamp columns.
1260 * They are not included as part of the where clause.
1261 */
1262 {
1263 bool moreThanOneColumn = FALSE;
1264 wxString colValue;
1265
1266 // Loop through the columns building a where clause as you go
1267 int colNo;
1268 for (colNo = 0; colNo < noCols; colNo++)
1269 {
1270 // Determine if this column should be included in the WHERE clause
1271 if ((typeOfWhere == DB_WHERE_KEYFIELDS && colDefs[colNo].KeyField) ||
1272 (typeOfWhere == DB_WHERE_MATCHING && (!IsColNull(colNo))))
1273 {
1274 // Skip over timestamp columns
1275 if (colDefs[colNo].SqlCtype == SQL_C_TIMESTAMP)
1276 continue;
1277 // If there is more than 1 column, join them with the keyword "AND"
1278 if (moreThanOneColumn)
1279 pWhereClause += wxT(" AND ");
1280 else
1281 moreThanOneColumn = TRUE;
1282
1283 // Concatenate where phrase for the column
1284 wxString tStr = colDefs[colNo].ColName;
1285
1286 if (qualTableName.Length() && !tStr.Find(wxT('.')))
1287 {
1288 pWhereClause += pDb->SQLTableName(qualTableName);
1289 pWhereClause += wxT(".");
1290 }
1291 pWhereClause += pDb->SQLColumnName(colDefs[colNo].ColName);
1292
1293 if (useLikeComparison && (colDefs[colNo].SqlCtype == SQL_C_CHAR))
1294 pWhereClause += wxT(" LIKE ");
1295 else
1296 pWhereClause += wxT(" = ");
1297
1298 switch(colDefs[colNo].SqlCtype)
1299 {
1300 case SQL_C_CHAR:
1301 colValue.Printf(wxT("'%s'"), (UCHAR FAR *) colDefs[colNo].PtrDataObj);
1302 break;
1303 case SQL_C_SHORT:
1304 case SQL_C_SSHORT:
1305 colValue.Printf(wxT("%hi"), *((SWORD *) colDefs[colNo].PtrDataObj));
1306 break;
1307 case SQL_C_USHORT:
1308 colValue.Printf(wxT("%hu"), *((UWORD *) colDefs[colNo].PtrDataObj));
1309 break;
1310 case SQL_C_LONG:
1311 case SQL_C_SLONG:
1312 colValue.Printf(wxT("%li"), *((SDWORD *) colDefs[colNo].PtrDataObj));
1313 break;
1314 case SQL_C_ULONG:
1315 colValue.Printf(wxT("%lu"), *((UDWORD *) colDefs[colNo].PtrDataObj));
1316 break;
1317 case SQL_C_FLOAT:
1318 colValue.Printf(wxT("%.6f"), *((SFLOAT *) colDefs[colNo].PtrDataObj));
1319 break;
1320 case SQL_C_DOUBLE:
1321 colValue.Printf(wxT("%.6f"), *((SDOUBLE *) colDefs[colNo].PtrDataObj));
1322 break;
1323 default:
1324 {
1325 wxString strMsg;
1326 strMsg.Printf(wxT("wxDbTable::bindParams(): Unknown column type for colDefs %d colName %s"),
1327 colNo,colDefs[colNo].ColName);
1328 wxFAIL_MSG(strMsg.c_str());
1329 }
1330 break;
1331 }
1332 pWhereClause += colValue;
1333 }
1334 }
1335 } // wxDbTable::BuildWhereClause()
1336
1337
1338 /***** DEPRECATED: use wxDbTable::BuildWhereClause(wxString &....) form *****/
1339 void wxDbTable::BuildWhereClause(wxChar *pWhereClause, int typeOfWhere,
1340 const wxString &qualTableName, bool useLikeComparison)
1341 {
1342 wxString tempSqlStmt;
1343 BuildWhereClause(tempSqlStmt, typeOfWhere, qualTableName, useLikeComparison);
1344 wxStrcpy(pWhereClause, tempSqlStmt);
1345 } // wxDbTable::BuildWhereClause()
1346
1347
1348 /********** wxDbTable::GetRowNum() **********/
1349 UWORD wxDbTable::GetRowNum(void)
1350 {
1351 UDWORD rowNum;
1352
1353 if (SQLGetStmtOption(hstmt, SQL_ROW_NUMBER, (UCHAR*) &rowNum) != SQL_SUCCESS)
1354 {
1355 pDb->DispAllErrors(henv, hdbc, hstmt);
1356 return(0);
1357 }
1358
1359 // Completed successfully
1360 return((UWORD) rowNum);
1361
1362 } // wxDbTable::GetRowNum()
1363
1364
1365 /********** wxDbTable::CloseCursor() **********/
1366 bool wxDbTable::CloseCursor(HSTMT cursor)
1367 {
1368 if (SQLFreeStmt(cursor, SQL_CLOSE) != SQL_SUCCESS)
1369 return(pDb->DispAllErrors(henv, hdbc, cursor));
1370
1371 // Completed successfully
1372 return(TRUE);
1373
1374 } // wxDbTable::CloseCursor()
1375
1376
1377 /********** wxDbTable::CreateTable() **********/
1378 bool wxDbTable::CreateTable(bool attemptDrop)
1379 {
1380 if (!pDb)
1381 return FALSE;
1382
1383 int i, j;
1384 wxString sqlStmt;
1385
1386 #ifdef DBDEBUG_CONSOLE
1387 cout << wxT("Creating Table ") << tableName << wxT("...") << endl;
1388 #endif
1389
1390 // Drop table first
1391 if (attemptDrop && !DropTable())
1392 return FALSE;
1393
1394 // Create the table
1395 #ifdef DBDEBUG_CONSOLE
1396 for (i = 0; i < noCols; i++)
1397 {
1398 // Exclude derived columns since they are NOT part of the base table
1399 if (colDefs[i].DerivedCol)
1400 continue;
1401 cout << i + 1 << wxT(": ") << colDefs[i].ColName << wxT("; ");
1402 switch(colDefs[i].DbDataType)
1403 {
1404 case DB_DATA_TYPE_VARCHAR:
1405 cout << pDb->GetTypeInfVarchar().TypeName << wxT("(") << colDefs[i].SzDataObj << wxT(")");
1406 break;
1407 case DB_DATA_TYPE_INTEGER:
1408 cout << pDb->GetTypeInfInteger().TypeName;
1409 break;
1410 case DB_DATA_TYPE_FLOAT:
1411 cout << pDb->GetTypeInfFloat().TypeName;
1412 break;
1413 case DB_DATA_TYPE_DATE:
1414 cout << pDb->GetTypeInfDate().TypeName;
1415 break;
1416 case DB_DATA_TYPE_BLOB:
1417 cout << pDb->GetTypeInfBlob().TypeName;
1418 break;
1419 }
1420 cout << endl;
1421 }
1422 #endif
1423
1424 // Build a CREATE TABLE string from the colDefs structure.
1425 bool needComma = FALSE;
1426
1427 sqlStmt.Printf(wxT("CREATE TABLE %s ("),
1428 pDb->SQLTableName(tableName.c_str()).c_str());
1429
1430 for (i = 0; i < noCols; i++)
1431 {
1432 // Exclude derived columns since they are NOT part of the base table
1433 if (colDefs[i].DerivedCol)
1434 continue;
1435 // Comma Delimiter
1436 if (needComma)
1437 sqlStmt += wxT(",");
1438 // Column Name
1439 sqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1440 // sqlStmt += colDefs[i].ColName;
1441 sqlStmt += wxT(" ");
1442 // Column Type
1443 switch(colDefs[i].DbDataType)
1444 {
1445 case DB_DATA_TYPE_VARCHAR:
1446 sqlStmt += pDb->GetTypeInfVarchar().TypeName;
1447 break;
1448 case DB_DATA_TYPE_INTEGER:
1449 sqlStmt += pDb->GetTypeInfInteger().TypeName;
1450 break;
1451 case DB_DATA_TYPE_FLOAT:
1452 sqlStmt += pDb->GetTypeInfFloat().TypeName;
1453 break;
1454 case DB_DATA_TYPE_DATE:
1455 sqlStmt += pDb->GetTypeInfDate().TypeName;
1456 break;
1457 case DB_DATA_TYPE_BLOB:
1458 sqlStmt += pDb->GetTypeInfBlob().TypeName;
1459 break;
1460 }
1461 // For varchars, append the size of the string
1462 if (colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR &&
1463 (pDb->Dbms() != dbmsMY_SQL || pDb->GetTypeInfVarchar().TypeName != _T("text")))// ||
1464 // colDefs[i].DbDataType == DB_DATA_TYPE_BLOB)
1465 {
1466 wxString s;
1467 s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
1468 sqlStmt += s;
1469 }
1470
1471 if (pDb->Dbms() == dbmsDB2 ||
1472 pDb->Dbms() == dbmsMY_SQL ||
1473 pDb->Dbms() == dbmsSYBASE_ASE ||
1474 pDb->Dbms() == dbmsINTERBASE ||
1475 pDb->Dbms() == dbmsMS_SQL_SERVER)
1476 {
1477 if (colDefs[i].KeyField)
1478 {
1479 sqlStmt += wxT(" NOT NULL");
1480 }
1481 }
1482
1483 needComma = TRUE;
1484 }
1485 // If there is a primary key defined, include it in the create statement
1486 for (i = j = 0; i < noCols; i++)
1487 {
1488 if (colDefs[i].KeyField)
1489 {
1490 j++;
1491 break;
1492 }
1493 }
1494 if ( j && (pDb->Dbms() != dbmsDBASE)
1495 && (pDb->Dbms() != dbmsXBASE_SEQUITER) ) // Found a keyfield
1496 {
1497 switch (pDb->Dbms())
1498 {
1499 case dbmsACCESS:
1500 case dbmsINFORMIX:
1501 case dbmsSYBASE_ASA:
1502 case dbmsSYBASE_ASE:
1503 case dbmsMY_SQL:
1504 {
1505 // MySQL goes out on this one. We also declare the relevant key NON NULL above
1506 sqlStmt += wxT(",PRIMARY KEY (");
1507 break;
1508 }
1509 default:
1510 {
1511 sqlStmt += wxT(",CONSTRAINT ");
1512 // DB2 is limited to 18 characters for index names
1513 if (pDb->Dbms() == dbmsDB2)
1514 {
1515 wxASSERT_MSG((tableName && wxStrlen(tableName) <= 13), wxT("DB2 table/index names must be no longer than 13 characters in length.\n\nTruncating table name to 13 characters."));
1516 sqlStmt += pDb->SQLTableName(tableName.substr(0, 13).c_str());
1517 // sqlStmt += tableName.substr(0, 13);
1518 }
1519 else
1520 sqlStmt += pDb->SQLTableName(tableName.c_str());
1521 // sqlStmt += tableName;
1522
1523 sqlStmt += wxT("_PIDX PRIMARY KEY (");
1524 break;
1525 }
1526 }
1527
1528 // List column name(s) of column(s) comprising the primary key
1529 for (i = j = 0; i < noCols; i++)
1530 {
1531 if (colDefs[i].KeyField)
1532 {
1533 if (j++) // Multi part key, comma separate names
1534 sqlStmt += wxT(",");
1535 sqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1536
1537 if (pDb->Dbms() == dbmsMY_SQL &&
1538 colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR)
1539 {
1540 wxString s;
1541 s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
1542 sqlStmt += s;
1543 }
1544 }
1545 }
1546 sqlStmt += wxT(")");
1547
1548 if (pDb->Dbms() == dbmsINFORMIX ||
1549 pDb->Dbms() == dbmsSYBASE_ASA ||
1550 pDb->Dbms() == dbmsSYBASE_ASE)
1551 {
1552 sqlStmt += wxT(" CONSTRAINT ");
1553 sqlStmt += pDb->SQLTableName(tableName);
1554 // sqlStmt += tableName;
1555 sqlStmt += wxT("_PIDX");
1556 }
1557 }
1558 // Append the closing parentheses for the create table statement
1559 sqlStmt += wxT(")");
1560
1561 pDb->WriteSqlLog(sqlStmt);
1562
1563 #ifdef DBDEBUG_CONSOLE
1564 cout << endl << sqlStmt.c_str() << endl;
1565 #endif
1566
1567 // Execute the CREATE TABLE statement
1568 RETCODE retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
1569 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
1570 {
1571 pDb->DispAllErrors(henv, hdbc, hstmt);
1572 pDb->RollbackTrans();
1573 CloseCursor(hstmt);
1574 return(FALSE);
1575 }
1576
1577 // Commit the transaction and close the cursor
1578 if (!pDb->CommitTrans())
1579 return(FALSE);
1580 if (!CloseCursor(hstmt))
1581 return(FALSE);
1582
1583 // Database table created successfully
1584 return(TRUE);
1585
1586 } // wxDbTable::CreateTable()
1587
1588
1589 /********** wxDbTable::DropTable() **********/
1590 bool wxDbTable::DropTable()
1591 {
1592 // NOTE: This function returns TRUE if the Table does not exist, but
1593 // only for identified databases. Code will need to be added
1594 // below for any other databases when those databases are defined
1595 // to handle this situation consistently
1596
1597 wxString sqlStmt;
1598
1599 sqlStmt.Printf(wxT("DROP TABLE %s"),
1600 pDb->SQLTableName(tableName.c_str()).c_str());
1601
1602 pDb->WriteSqlLog(sqlStmt);
1603
1604 #ifdef DBDEBUG_CONSOLE
1605 cout << endl << sqlStmt.c_str() << endl;
1606 #endif
1607
1608 RETCODE retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
1609 if (retcode != SQL_SUCCESS)
1610 {
1611 // Check for "Base table not found" error and ignore
1612 pDb->GetNextError(henv, hdbc, hstmt);
1613 if (wxStrcmp(pDb->sqlState, wxT("S0002")) /*&&
1614 wxStrcmp(pDb->sqlState, wxT("S1000"))*/) // "Base table not found"
1615 {
1616 // Check for product specific error codes
1617 if (!((pDb->Dbms() == dbmsSYBASE_ASA && !wxStrcmp(pDb->sqlState,wxT("42000"))) || // 5.x (and lower?)
1618 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("37000"))) ||
1619 (pDb->Dbms() == dbmsPERVASIVE_SQL && !wxStrcmp(pDb->sqlState,wxT("S1000"))) || // Returns an S1000 then an S0002
1620 (pDb->Dbms() == dbmsPOSTGRES && !wxStrcmp(pDb->sqlState,wxT("08S01")))))
1621 {
1622 pDb->DispNextError();
1623 pDb->DispAllErrors(henv, hdbc, hstmt);
1624 pDb->RollbackTrans();
1625 // CloseCursor(hstmt);
1626 return(FALSE);
1627 }
1628 }
1629 }
1630
1631 // Commit the transaction and close the cursor
1632 if (! pDb->CommitTrans())
1633 return(FALSE);
1634 if (! CloseCursor(hstmt))
1635 return(FALSE);
1636
1637 return(TRUE);
1638 } // wxDbTable::DropTable()
1639
1640
1641 /********** wxDbTable::CreateIndex() **********/
1642 bool wxDbTable::CreateIndex(const wxString &idxName, bool unique, UWORD noIdxCols,
1643 wxDbIdxDef *pIdxDefs, bool attemptDrop)
1644 {
1645 wxString sqlStmt;
1646
1647 // Drop the index first
1648 if (attemptDrop && !DropIndex(idxName))
1649 return (FALSE);
1650
1651 // MySQL (and possibly Sybase ASE?? - gt) require that any columns which are used as portions
1652 // of an index have the columns defined as "NOT NULL". During initial table creation though,
1653 // it may not be known which columns are necessarily going to be part of an index (e.g. the
1654 // table was created, then months later you determine that an additional index while
1655 // give better performance, so you want to add an index).
1656 //
1657 // The following block of code will modify the column definition to make the column be
1658 // defined with the "NOT NULL" qualifier.
1659 if (pDb->Dbms() == dbmsMY_SQL)
1660 {
1661 wxString sqlStmt;
1662 int i;
1663 bool ok = TRUE;
1664 for (i = 0; i < noIdxCols && ok; i++)
1665 {
1666 int j = 0;
1667 bool found = FALSE;
1668 // Find the column definition that has the ColName that matches the
1669 // index column name. We need to do this to get the DB_DATA_TYPE of
1670 // the index column, as MySQL's syntax for the ALTER column requires
1671 // this information
1672 while (!found && (j < this->noCols))
1673 {
1674 if (wxStrcmp(colDefs[j].ColName,pIdxDefs[i].ColName) == 0)
1675 found = TRUE;
1676 if (!found)
1677 j++;
1678 }
1679
1680 if (found)
1681 {
1682 ok = pDb->ModifyColumn(tableName, pIdxDefs[i].ColName,
1683 colDefs[j].DbDataType, colDefs[j].SzDataObj,
1684 wxT("NOT NULL"));
1685
1686 if (!ok)
1687 {
1688 #if 0
1689 // retcode is not used
1690 wxODBC_ERRORS retcode;
1691 // Oracle returns a DB_ERR_GENERAL_ERROR if the column is already
1692 // defined to be NOT NULL, but reportedly MySQL doesn't mind.
1693 // This line is just here for debug checking of the value
1694 retcode = (wxODBC_ERRORS)pDb->DB_STATUS;
1695 #endif
1696 }
1697 }
1698 else
1699 ok = FALSE;
1700 }
1701 if (ok)
1702 pDb->CommitTrans();
1703 else
1704 {
1705 pDb->RollbackTrans();
1706 return(FALSE);
1707 }
1708 }
1709
1710 // Build a CREATE INDEX statement
1711 sqlStmt = wxT("CREATE ");
1712 if (unique)
1713 sqlStmt += wxT("UNIQUE ");
1714
1715 sqlStmt += wxT("INDEX ");
1716 sqlStmt += pDb->SQLTableName(idxName);
1717 sqlStmt += wxT(" ON ");
1718
1719 sqlStmt += pDb->SQLTableName(tableName);
1720 // sqlStmt += tableName;
1721 sqlStmt += wxT(" (");
1722
1723 // Append list of columns making up index
1724 int i;
1725 for (i = 0; i < noIdxCols; i++)
1726 {
1727 sqlStmt += pDb->SQLColumnName(pIdxDefs[i].ColName);
1728 // sqlStmt += pIdxDefs[i].ColName;
1729
1730 // MySQL requires a key length on VARCHAR keys
1731 if ( pDb->Dbms() == dbmsMY_SQL )
1732 {
1733 // Find the details on this column
1734 int j;
1735 for ( j = 0; j < noCols; ++j )
1736 {
1737 if ( wxStrcmp( pIdxDefs[i].ColName, colDefs[j].ColName ) == 0 )
1738 {
1739 break;
1740 }
1741 }
1742 if ( colDefs[j].DbDataType == DB_DATA_TYPE_VARCHAR)
1743 {
1744 wxString s;
1745 s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
1746 sqlStmt += s;
1747 }
1748 }
1749
1750 // Postgres and SQL Server 7 do not support the ASC/DESC keywords for index columns
1751 if (!((pDb->Dbms() == dbmsMS_SQL_SERVER) && (wxStrncmp(pDb->dbInf.dbmsVer,_T("07"),2)==0)) &&
1752 !(pDb->Dbms() == dbmsPOSTGRES))
1753 {
1754 if (pIdxDefs[i].Ascending)
1755 sqlStmt += wxT(" ASC");
1756 else
1757 sqlStmt += wxT(" DESC");
1758 }
1759 else
1760 wxASSERT_MSG(pIdxDefs[i].Ascending, _T("Datasource does not support DESCending index columns"));
1761
1762 if ((i + 1) < noIdxCols)
1763 sqlStmt += wxT(",");
1764 }
1765
1766 // Append closing parentheses
1767 sqlStmt += wxT(")");
1768
1769 pDb->WriteSqlLog(sqlStmt);
1770
1771 #ifdef DBDEBUG_CONSOLE
1772 cout << endl << sqlStmt.c_str() << endl << endl;
1773 #endif
1774
1775 // Execute the CREATE INDEX statement
1776 if (SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
1777 {
1778 pDb->DispAllErrors(henv, hdbc, hstmt);
1779 pDb->RollbackTrans();
1780 CloseCursor(hstmt);
1781 return(FALSE);
1782 }
1783
1784 // Commit the transaction and close the cursor
1785 if (! pDb->CommitTrans())
1786 return(FALSE);
1787 if (! CloseCursor(hstmt))
1788 return(FALSE);
1789
1790 // Index Created Successfully
1791 return(TRUE);
1792
1793 } // wxDbTable::CreateIndex()
1794
1795
1796 /********** wxDbTable::DropIndex() **********/
1797 bool wxDbTable::DropIndex(const wxString &idxName)
1798 {
1799 // NOTE: This function returns TRUE if the Index does not exist, but
1800 // only for identified databases. Code will need to be added
1801 // below for any other databases when those databases are defined
1802 // to handle this situation consistently
1803
1804 wxString sqlStmt;
1805
1806 if (pDb->Dbms() == dbmsACCESS || pDb->Dbms() == dbmsMY_SQL ||
1807 pDb->Dbms() == dbmsDBASE /*|| Paradox needs this syntax too when we add support*/)
1808 sqlStmt.Printf(wxT("DROP INDEX %s ON %s"),
1809 pDb->SQLTableName(idxName.c_str()).c_str(),
1810 pDb->SQLTableName(tableName.c_str()).c_str());
1811 else if ((pDb->Dbms() == dbmsMS_SQL_SERVER) ||
1812 (pDb->Dbms() == dbmsSYBASE_ASE) ||
1813 (pDb->Dbms() == dbmsXBASE_SEQUITER))
1814 sqlStmt.Printf(wxT("DROP INDEX %s.%s"),
1815 pDb->SQLTableName(tableName.c_str()).c_str(),
1816 pDb->SQLTableName(idxName.c_str()).c_str());
1817 else
1818 sqlStmt.Printf(wxT("DROP INDEX %s"),
1819 pDb->SQLTableName(idxName.c_str()).c_str());
1820
1821 pDb->WriteSqlLog(sqlStmt);
1822
1823 #ifdef DBDEBUG_CONSOLE
1824 cout << endl << sqlStmt.c_str() << endl;
1825 #endif
1826
1827 if (SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
1828 {
1829 // Check for "Index not found" error and ignore
1830 pDb->GetNextError(henv, hdbc, hstmt);
1831 if (wxStrcmp(pDb->sqlState,wxT("S0012"))) // "Index not found"
1832 {
1833 // Check for product specific error codes
1834 if (!((pDb->Dbms() == dbmsSYBASE_ASA && !wxStrcmp(pDb->sqlState,wxT("42000"))) || // v5.x (and lower?)
1835 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("37000"))) ||
1836 (pDb->Dbms() == dbmsMS_SQL_SERVER && !wxStrcmp(pDb->sqlState,wxT("S1000"))) ||
1837 (pDb->Dbms() == dbmsINTERBASE && !wxStrcmp(pDb->sqlState,wxT("S1000"))) ||
1838 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("S0002"))) || // Base table not found
1839 (pDb->Dbms() == dbmsMY_SQL && !wxStrcmp(pDb->sqlState,wxT("42S12"))) || // tested by Christopher Ludwik Marino-Cebulski using v3.23.21beta
1840 (pDb->Dbms() == dbmsPOSTGRES && !wxStrcmp(pDb->sqlState,wxT("08S01")))
1841 ))
1842 {
1843 pDb->DispNextError();
1844 pDb->DispAllErrors(henv, hdbc, hstmt);
1845 pDb->RollbackTrans();
1846 CloseCursor(hstmt);
1847 return(FALSE);
1848 }
1849 }
1850 }
1851
1852 // Commit the transaction and close the cursor
1853 if (! pDb->CommitTrans())
1854 return(FALSE);
1855 if (! CloseCursor(hstmt))
1856 return(FALSE);
1857
1858 return(TRUE);
1859 } // wxDbTable::DropIndex()
1860
1861
1862 /********** wxDbTable::SetOrderByColNums() **********/
1863 bool wxDbTable::SetOrderByColNums(UWORD first, ... )
1864 {
1865 int colNo = first; // using 'int' to be able to look for wxDB_NO_MORE_COLUN_NUMBERS
1866 va_list argptr;
1867
1868 bool abort = FALSE;
1869 wxString tempStr;
1870
1871 va_start(argptr, first); /* Initialize variable arguments. */
1872 while (!abort && (colNo != wxDB_NO_MORE_COLUMN_NUMBERS))
1873 {
1874 // Make sure the passed in column number
1875 // is within the valid range of columns
1876 //
1877 // Valid columns are 0 thru noCols-1
1878 if (colNo >= noCols || colNo < 0)
1879 {
1880 abort = TRUE;
1881 continue;
1882 }
1883
1884 if (colNo != first)
1885 tempStr += wxT(",");
1886
1887 tempStr += colDefs[colNo].ColName;
1888 colNo = va_arg (argptr, int);
1889 }
1890 va_end (argptr); /* Reset variable arguments. */
1891
1892 SetOrderByClause(tempStr);
1893
1894 return (!abort);
1895 } // wxDbTable::SetOrderByColNums()
1896
1897
1898 /********** wxDbTable::Insert() **********/
1899 int wxDbTable::Insert(void)
1900 {
1901 wxASSERT(!queryOnly);
1902 if (queryOnly || !insertable)
1903 return(DB_FAILURE);
1904
1905 bindInsertParams();
1906
1907 // Insert the record by executing the already prepared insert statement
1908 RETCODE retcode;
1909 retcode=SQLExecute(hstmtInsert);
1910 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO &&
1911 retcode != SQL_NEED_DATA)
1912 {
1913 // Check to see if integrity constraint was violated
1914 pDb->GetNextError(henv, hdbc, hstmtInsert);
1915 if (! wxStrcmp(pDb->sqlState, wxT("23000"))) // Integrity constraint violated
1916 return(DB_ERR_INTEGRITY_CONSTRAINT_VIOL);
1917 else
1918 {
1919 pDb->DispNextError();
1920 pDb->DispAllErrors(henv, hdbc, hstmtInsert);
1921 return(DB_FAILURE);
1922 }
1923 }
1924 if (retcode == SQL_NEED_DATA)
1925 {
1926 PTR pParmID;
1927 retcode = SQLParamData(hstmtInsert, &pParmID);
1928 while (retcode == SQL_NEED_DATA)
1929 {
1930 // Find the parameter
1931 int i;
1932 for (i=0; i < noCols; i++)
1933 {
1934 if (colDefs[i].PtrDataObj == pParmID)
1935 {
1936 // We found it. Store the parameter.
1937 retcode = SQLPutData(hstmtInsert, pParmID, colDefs[i].SzDataObj);
1938 if (retcode != SQL_SUCCESS)
1939 {
1940 pDb->DispNextError();
1941 pDb->DispAllErrors(henv, hdbc, hstmtInsert);
1942 return(DB_FAILURE);
1943 }
1944 break;
1945 }
1946 }
1947 retcode = SQLParamData(hstmtInsert, &pParmID);
1948 }
1949 }
1950
1951 // Record inserted into the datasource successfully
1952 return(DB_SUCCESS);
1953
1954 } // wxDbTable::Insert()
1955
1956
1957 /********** wxDbTable::Update() **********/
1958 bool wxDbTable::Update(void)
1959 {
1960 wxASSERT(!queryOnly);
1961 if (queryOnly)
1962 return(FALSE);
1963
1964 wxString sqlStmt;
1965
1966 // Build the SQL UPDATE statement
1967 BuildUpdateStmt(sqlStmt, DB_UPD_KEYFIELDS);
1968
1969 pDb->WriteSqlLog(sqlStmt);
1970
1971 #ifdef DBDEBUG_CONSOLE
1972 cout << endl << sqlStmt.c_str() << endl << endl;
1973 #endif
1974
1975 // Execute the SQL UPDATE statement
1976 return(execUpdate(sqlStmt));
1977
1978 } // wxDbTable::Update()
1979
1980
1981 /********** wxDbTable::Update(pSqlStmt) **********/
1982 bool wxDbTable::Update(const wxString &pSqlStmt)
1983 {
1984 wxASSERT(!queryOnly);
1985 if (queryOnly)
1986 return(FALSE);
1987
1988 pDb->WriteSqlLog(pSqlStmt);
1989
1990 return(execUpdate(pSqlStmt));
1991
1992 } // wxDbTable::Update(pSqlStmt)
1993
1994
1995 /********** wxDbTable::UpdateWhere() **********/
1996 bool wxDbTable::UpdateWhere(const wxString &pWhereClause)
1997 {
1998 wxASSERT(!queryOnly);
1999 if (queryOnly)
2000 return(FALSE);
2001
2002 wxString sqlStmt;
2003
2004 // Build the SQL UPDATE statement
2005 BuildUpdateStmt(sqlStmt, DB_UPD_WHERE, pWhereClause);
2006
2007 pDb->WriteSqlLog(sqlStmt);
2008
2009 #ifdef DBDEBUG_CONSOLE
2010 cout << endl << sqlStmt.c_str() << endl << endl;
2011 #endif
2012
2013 // Execute the SQL UPDATE statement
2014 return(execUpdate(sqlStmt));
2015
2016 } // wxDbTable::UpdateWhere()
2017
2018
2019 /********** wxDbTable::Delete() **********/
2020 bool wxDbTable::Delete(void)
2021 {
2022 wxASSERT(!queryOnly);
2023 if (queryOnly)
2024 return(FALSE);
2025
2026 wxString sqlStmt;
2027 sqlStmt.Empty();
2028
2029 // Build the SQL DELETE statement
2030 BuildDeleteStmt(sqlStmt, DB_DEL_KEYFIELDS);
2031
2032 pDb->WriteSqlLog(sqlStmt);
2033
2034 // Execute the SQL DELETE statement
2035 return(execDelete(sqlStmt));
2036
2037 } // wxDbTable::Delete()
2038
2039
2040 /********** wxDbTable::DeleteWhere() **********/
2041 bool wxDbTable::DeleteWhere(const wxString &pWhereClause)
2042 {
2043 wxASSERT(!queryOnly);
2044 if (queryOnly)
2045 return(FALSE);
2046
2047 wxString sqlStmt;
2048 sqlStmt.Empty();
2049
2050 // Build the SQL DELETE statement
2051 BuildDeleteStmt(sqlStmt, DB_DEL_WHERE, pWhereClause);
2052
2053 pDb->WriteSqlLog(sqlStmt);
2054
2055 // Execute the SQL DELETE statement
2056 return(execDelete(sqlStmt));
2057
2058 } // wxDbTable::DeleteWhere()
2059
2060
2061 /********** wxDbTable::DeleteMatching() **********/
2062 bool wxDbTable::DeleteMatching(void)
2063 {
2064 wxASSERT(!queryOnly);
2065 if (queryOnly)
2066 return(FALSE);
2067
2068 wxString sqlStmt;
2069 sqlStmt.Empty();
2070
2071 // Build the SQL DELETE statement
2072 BuildDeleteStmt(sqlStmt, DB_DEL_MATCHING);
2073
2074 pDb->WriteSqlLog(sqlStmt);
2075
2076 // Execute the SQL DELETE statement
2077 return(execDelete(sqlStmt));
2078
2079 } // wxDbTable::DeleteMatching()
2080
2081
2082 /********** wxDbTable::IsColNull() **********/
2083 bool wxDbTable::IsColNull(UWORD colNo) const
2084 {
2085 /*
2086 This logic is just not right. It would indicate TRUE
2087 if a numeric field were set to a value of 0.
2088
2089 switch(colDefs[colNo].SqlCtype)
2090 {
2091 case SQL_C_CHAR:
2092 return(((UCHAR FAR *) colDefs[colNo].PtrDataObj)[0] == 0);
2093 case SQL_C_SSHORT:
2094 return(( *((SWORD *) colDefs[colNo].PtrDataObj)) == 0);
2095 case SQL_C_USHORT:
2096 return(( *((UWORD*) colDefs[colNo].PtrDataObj)) == 0);
2097 case SQL_C_SLONG:
2098 return(( *((SDWORD *) colDefs[colNo].PtrDataObj)) == 0);
2099 case SQL_C_ULONG:
2100 return(( *((UDWORD *) colDefs[colNo].PtrDataObj)) == 0);
2101 case SQL_C_FLOAT:
2102 return(( *((SFLOAT *) colDefs[colNo].PtrDataObj)) == 0);
2103 case SQL_C_DOUBLE:
2104 return((*((SDOUBLE *) colDefs[colNo].PtrDataObj)) == 0);
2105 case SQL_C_TIMESTAMP:
2106 TIMESTAMP_STRUCT *pDt;
2107 pDt = (TIMESTAMP_STRUCT *) colDefs[colNo].PtrDataObj;
2108 if (pDt->year == 0 && pDt->month == 0 && pDt->day == 0)
2109 return(TRUE);
2110 else
2111 return(FALSE);
2112 default:
2113 return(TRUE);
2114 }
2115 */
2116 return (colDefs[colNo].Null);
2117 } // wxDbTable::IsColNull()
2118
2119
2120 /********** wxDbTable::CanSelectForUpdate() **********/
2121 bool wxDbTable::CanSelectForUpdate(void)
2122 {
2123 if (queryOnly)
2124 return FALSE;
2125
2126 if (pDb->Dbms() == dbmsMY_SQL)
2127 return FALSE;
2128
2129 if ((pDb->Dbms() == dbmsORACLE) ||
2130 (pDb->dbInf.posStmts & SQL_PS_SELECT_FOR_UPDATE))
2131 return(TRUE);
2132 else
2133 return(FALSE);
2134
2135 } // wxDbTable::CanSelectForUpdate()
2136
2137
2138 /********** wxDbTable::CanUpdByROWID() **********/
2139 bool wxDbTable::CanUpdByROWID(void)
2140 {
2141 /*
2142 * NOTE: Returning FALSE for now until this can be debugged,
2143 * as the ROWID is not getting updated correctly
2144 */
2145 return FALSE;
2146 /*
2147 if (pDb->Dbms() == dbmsORACLE)
2148 return(TRUE);
2149 else
2150 return(FALSE);
2151 */
2152 } // wxDbTable::CanUpdByROWID()
2153
2154
2155 /********** wxDbTable::IsCursorClosedOnCommit() **********/
2156 bool wxDbTable::IsCursorClosedOnCommit(void)
2157 {
2158 if (pDb->dbInf.cursorCommitBehavior == SQL_CB_PRESERVE)
2159 return(FALSE);
2160 else
2161 return(TRUE);
2162
2163 } // wxDbTable::IsCursorClosedOnCommit()
2164
2165
2166
2167 /********** wxDbTable::ClearMemberVar() **********/
2168 void wxDbTable::ClearMemberVar(UWORD colNo, bool setToNull)
2169 {
2170 wxASSERT(colNo < noCols);
2171
2172 switch(colDefs[colNo].SqlCtype)
2173 {
2174 case SQL_C_CHAR:
2175 ((UCHAR FAR *) colDefs[colNo].PtrDataObj)[0] = 0;
2176 break;
2177 case SQL_C_SSHORT:
2178 *((SWORD *) colDefs[colNo].PtrDataObj) = 0;
2179 break;
2180 case SQL_C_USHORT:
2181 *((UWORD*) colDefs[colNo].PtrDataObj) = 0;
2182 break;
2183 case SQL_C_SLONG:
2184 *((SDWORD *) colDefs[colNo].PtrDataObj) = 0;
2185 break;
2186 case SQL_C_ULONG:
2187 *((UDWORD *) colDefs[colNo].PtrDataObj) = 0;
2188 break;
2189 case SQL_C_FLOAT:
2190 *((SFLOAT *) colDefs[colNo].PtrDataObj) = 0.0f;
2191 break;
2192 case SQL_C_DOUBLE:
2193 *((SDOUBLE *) colDefs[colNo].PtrDataObj) = 0.0f;
2194 break;
2195 case SQL_C_TIMESTAMP:
2196 TIMESTAMP_STRUCT *pDt;
2197 pDt = (TIMESTAMP_STRUCT *) colDefs[colNo].PtrDataObj;
2198 pDt->year = 0;
2199 pDt->month = 0;
2200 pDt->day = 0;
2201 pDt->hour = 0;
2202 pDt->minute = 0;
2203 pDt->second = 0;
2204 pDt->fraction = 0;
2205 break;
2206 }
2207
2208 if (setToNull)
2209 SetColNull(colNo);
2210 } // wxDbTable::ClearMemberVar()
2211
2212
2213 /********** wxDbTable::ClearMemberVars() **********/
2214 void wxDbTable::ClearMemberVars(bool setToNull)
2215 {
2216 int i;
2217
2218 // Loop through the columns setting each member variable to zero
2219 for (i=0; i < noCols; i++)
2220 ClearMemberVar(i,setToNull);
2221
2222 } // wxDbTable::ClearMemberVars()
2223
2224
2225 /********** wxDbTable::SetQueryTimeout() **********/
2226 bool wxDbTable::SetQueryTimeout(UDWORD nSeconds)
2227 {
2228 if (SQLSetStmtOption(hstmtInsert, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2229 return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
2230 if (SQLSetStmtOption(hstmtUpdate, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2231 return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
2232 if (SQLSetStmtOption(hstmtDelete, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2233 return(pDb->DispAllErrors(henv, hdbc, hstmtDelete));
2234 if (SQLSetStmtOption(hstmtInternal, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2235 return(pDb->DispAllErrors(henv, hdbc, hstmtInternal));
2236
2237 // Completed Successfully
2238 return(TRUE);
2239
2240 } // wxDbTable::SetQueryTimeout()
2241
2242
2243 /********** wxDbTable::SetColDefs() **********/
2244 void wxDbTable::SetColDefs(UWORD index, const wxString &fieldName, int dataType, void *pData,
2245 SWORD cType, int size, bool keyField, bool upd,
2246 bool insAllow, bool derivedCol)
2247 {
2248 wxASSERT_MSG( index < noCols,
2249 _T("Specified column index exceeds the maximum number of columns for this table.") );
2250
2251 if (!colDefs) // May happen if the database connection fails
2252 return;
2253
2254 if (fieldName.Length() > (unsigned int) DB_MAX_COLUMN_NAME_LEN)
2255 {
2256 wxStrncpy(colDefs[index].ColName, fieldName, DB_MAX_COLUMN_NAME_LEN);
2257 colDefs[index].ColName[DB_MAX_COLUMN_NAME_LEN] = 0;
2258
2259 #ifdef __WXDEBUG__
2260 wxString tmpMsg;
2261 tmpMsg.Printf(_T("Column name '%s' is too long. Truncated to '%s'."),
2262 fieldName.c_str(),colDefs[index].ColName);
2263 wxFAIL_MSG(tmpMsg);
2264 #endif // __WXDEBUG__
2265 }
2266 else
2267 wxStrcpy(colDefs[index].ColName, fieldName);
2268
2269 colDefs[index].DbDataType = dataType;
2270 colDefs[index].PtrDataObj = pData;
2271 colDefs[index].SqlCtype = cType;
2272 colDefs[index].SzDataObj = size;
2273 colDefs[index].KeyField = keyField;
2274 colDefs[index].DerivedCol = derivedCol;
2275 // Derived columns by definition would NOT be "Insertable" or "Updateable"
2276 if (derivedCol)
2277 {
2278 colDefs[index].Updateable = FALSE;
2279 colDefs[index].InsertAllowed = FALSE;
2280 }
2281 else
2282 {
2283 colDefs[index].Updateable = upd;
2284 colDefs[index].InsertAllowed = insAllow;
2285 }
2286
2287 colDefs[index].Null = FALSE;
2288
2289 } // wxDbTable::SetColDefs()
2290
2291
2292 /********** wxDbTable::SetColDefs() **********/
2293 wxDbColDataPtr* wxDbTable::SetColDefs(wxDbColInf *pColInfs, UWORD numCols)
2294 {
2295 wxASSERT(pColInfs);
2296 wxDbColDataPtr *pColDataPtrs = NULL;
2297
2298 if (pColInfs)
2299 {
2300 UWORD index;
2301
2302 pColDataPtrs = new wxDbColDataPtr[numCols+1];
2303
2304 for (index = 0; index < numCols; index++)
2305 {
2306 // Process the fields
2307 switch (pColInfs[index].dbDataType)
2308 {
2309 case DB_DATA_TYPE_VARCHAR:
2310 pColDataPtrs[index].PtrDataObj = new wxChar[pColInfs[index].bufferLength+1];
2311 pColDataPtrs[index].SzDataObj = pColInfs[index].columnSize;
2312 pColDataPtrs[index].SqlCtype = SQL_C_CHAR;
2313 break;
2314 case DB_DATA_TYPE_INTEGER:
2315 // Can be long or short
2316 if (pColInfs[index].bufferLength == sizeof(long))
2317 {
2318 pColDataPtrs[index].PtrDataObj = new long;
2319 pColDataPtrs[index].SzDataObj = sizeof(long);
2320 pColDataPtrs[index].SqlCtype = SQL_C_SLONG;
2321 }
2322 else
2323 {
2324 pColDataPtrs[index].PtrDataObj = new short;
2325 pColDataPtrs[index].SzDataObj = sizeof(short);
2326 pColDataPtrs[index].SqlCtype = SQL_C_SSHORT;
2327 }
2328 break;
2329 case DB_DATA_TYPE_FLOAT:
2330 // Can be float or double
2331 if (pColInfs[index].bufferLength == sizeof(float))
2332 {
2333 pColDataPtrs[index].PtrDataObj = new float;
2334 pColDataPtrs[index].SzDataObj = sizeof(float);
2335 pColDataPtrs[index].SqlCtype = SQL_C_FLOAT;
2336 }
2337 else
2338 {
2339 pColDataPtrs[index].PtrDataObj = new double;
2340 pColDataPtrs[index].SzDataObj = sizeof(double);
2341 pColDataPtrs[index].SqlCtype = SQL_C_DOUBLE;
2342 }
2343 break;
2344 case DB_DATA_TYPE_DATE:
2345 pColDataPtrs[index].PtrDataObj = new TIMESTAMP_STRUCT;
2346 pColDataPtrs[index].SzDataObj = sizeof(TIMESTAMP_STRUCT);
2347 pColDataPtrs[index].SqlCtype = SQL_C_TIMESTAMP;
2348 break;
2349 case DB_DATA_TYPE_BLOB:
2350 wxFAIL_MSG(wxT("This form of ::SetColDefs() cannot be used with BLOB columns"));
2351 pColDataPtrs[index].PtrDataObj = /*BLOB ADDITION NEEDED*/NULL;
2352 pColDataPtrs[index].SzDataObj = /*BLOB ADDITION NEEDED*/sizeof(void *);
2353 pColDataPtrs[index].SqlCtype = SQL_VARBINARY;
2354 break;
2355 }
2356 if (pColDataPtrs[index].PtrDataObj != NULL)
2357 SetColDefs (index,pColInfs[index].colName,pColInfs[index].dbDataType, pColDataPtrs[index].PtrDataObj, pColDataPtrs[index].SqlCtype, pColDataPtrs[index].SzDataObj);
2358 else
2359 {
2360 // Unable to build all the column definitions, as either one of
2361 // the calls to "new" failed above, or there was a BLOB field
2362 // to have a column definition for. If BLOBs are to be used,
2363 // the other form of ::SetColDefs() must be used, as it is impossible
2364 // to know the maximum size to create the PtrDataObj to be.
2365 delete [] pColDataPtrs;
2366 return NULL;
2367 }
2368 }
2369 }
2370
2371 return (pColDataPtrs);
2372
2373 } // wxDbTable::SetColDefs()
2374
2375
2376 /********** wxDbTable::SetCursor() **********/
2377 void wxDbTable::SetCursor(HSTMT *hstmtActivate)
2378 {
2379 if (hstmtActivate == wxDB_DEFAULT_CURSOR)
2380 hstmt = *hstmtDefault;
2381 else
2382 hstmt = *hstmtActivate;
2383
2384 } // wxDbTable::SetCursor()
2385
2386
2387 /********** wxDbTable::Count(const wxString &) **********/
2388 ULONG wxDbTable::Count(const wxString &args)
2389 {
2390 ULONG count;
2391 wxString sqlStmt;
2392 SDWORD cb;
2393
2394 // Build a "SELECT COUNT(*) FROM queryTableName [WHERE whereClause]" SQL Statement
2395 sqlStmt = wxT("SELECT COUNT(");
2396 sqlStmt += args;
2397 sqlStmt += wxT(") FROM ");
2398 sqlStmt += pDb->SQLTableName(queryTableName);
2399 // sqlStmt += queryTableName;
2400 #if wxODBC_BACKWARD_COMPATABILITY
2401 if (from && wxStrlen(from))
2402 #else
2403 if (from.Length())
2404 #endif
2405 sqlStmt += from;
2406
2407 // Add the where clause if one is provided
2408 #if wxODBC_BACKWARD_COMPATABILITY
2409 if (where && wxStrlen(where))
2410 #else
2411 if (where.Length())
2412 #endif
2413 {
2414 sqlStmt += wxT(" WHERE ");
2415 sqlStmt += where;
2416 }
2417
2418 pDb->WriteSqlLog(sqlStmt);
2419
2420 // Initialize the Count cursor if it's not already initialized
2421 if (!hstmtCount)
2422 {
2423 hstmtCount = GetNewCursor(FALSE,FALSE);
2424 wxASSERT(hstmtCount);
2425 if (!hstmtCount)
2426 return(0);
2427 }
2428
2429 // Execute the SQL statement
2430 if (SQLExecDirect(*hstmtCount, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
2431 {
2432 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2433 return(0);
2434 }
2435
2436 // Fetch the record
2437 if (SQLFetch(*hstmtCount) != SQL_SUCCESS)
2438 {
2439 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2440 return(0);
2441 }
2442
2443 // Obtain the result
2444 if (SQLGetData(*hstmtCount, (UWORD)1, SQL_C_ULONG, &count, sizeof(count), &cb) != SQL_SUCCESS)
2445 {
2446 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2447 return(0);
2448 }
2449
2450 // Free the cursor
2451 if (SQLFreeStmt(*hstmtCount, SQL_CLOSE) != SQL_SUCCESS)
2452 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2453
2454 // Return the record count
2455 return(count);
2456
2457 } // wxDbTable::Count()
2458
2459
2460 /********** wxDbTable::Refresh() **********/
2461 bool wxDbTable::Refresh(void)
2462 {
2463 bool result = TRUE;
2464
2465 // Switch to the internal cursor so any active cursors are not corrupted
2466 HSTMT currCursor = GetCursor();
2467 hstmt = hstmtInternal;
2468 #if wxODBC_BACKWARD_COMPATABILITY
2469 // Save the where and order by clauses
2470 wxChar *saveWhere = where;
2471 wxChar *saveOrderBy = orderBy;
2472 #else
2473 wxString saveWhere = where;
2474 wxString saveOrderBy = orderBy;
2475 #endif
2476 // Build a where clause to refetch the record with. Try and use the
2477 // ROWID if it's available, ow use the key fields.
2478 wxString whereClause;
2479 whereClause.Empty();
2480
2481 if (CanUpdByROWID())
2482 {
2483 SDWORD cb;
2484 wxChar rowid[wxDB_ROWID_LEN+1];
2485
2486 // Get the ROWID value. If not successful retreiving the ROWID,
2487 // simply fall down through the code and build the WHERE clause
2488 // based on the key fields.
2489 if (SQLGetData(hstmt, (UWORD)(noCols+1), SQL_C_CHAR, (UCHAR*) rowid, wxDB_ROWID_LEN, &cb) == SQL_SUCCESS)
2490 {
2491 whereClause += pDb->SQLTableName(queryTableName);
2492 // whereClause += queryTableName;
2493 whereClause += wxT(".ROWID = '");
2494 whereClause += rowid;
2495 whereClause += wxT("'");
2496 }
2497 }
2498
2499 // If unable to use the ROWID, build a where clause from the keyfields
2500 if (wxStrlen(whereClause) == 0)
2501 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS, queryTableName);
2502
2503 // Requery the record
2504 where = whereClause;
2505 orderBy.Empty();
2506 if (!Query())
2507 result = FALSE;
2508
2509 if (result && !GetNext())
2510 result = FALSE;
2511
2512 // Switch back to original cursor
2513 SetCursor(&currCursor);
2514
2515 // Free the internal cursor
2516 if (SQLFreeStmt(hstmtInternal, SQL_CLOSE) != SQL_SUCCESS)
2517 pDb->DispAllErrors(henv, hdbc, hstmtInternal);
2518
2519 // Restore the original where and order by clauses
2520 where = saveWhere;
2521 orderBy = saveOrderBy;
2522
2523 return(result);
2524
2525 } // wxDbTable::Refresh()
2526
2527
2528 /********** wxDbTable::SetColNull() **********/
2529 bool wxDbTable::SetColNull(UWORD colNo, bool set)
2530 {
2531 if (colNo < noCols)
2532 {
2533 colDefs[colNo].Null = set;
2534 if (set) // Blank out the values in the member variable
2535 ClearMemberVar(colNo, FALSE); // Must call with FALSE here, or infinite recursion will happen
2536
2537 setCbValueForColumn(colNo);
2538
2539 return(TRUE);
2540 }
2541 else
2542 return(FALSE);
2543
2544 } // wxDbTable::SetColNull()
2545
2546
2547 /********** wxDbTable::SetColNull() **********/
2548 bool wxDbTable::SetColNull(const wxString &colName, bool set)
2549 {
2550 int colNo;
2551 for (colNo = 0; colNo < noCols; colNo++)
2552 {
2553 if (!wxStricmp(colName, colDefs[colNo].ColName))
2554 break;
2555 }
2556
2557 if (colNo < noCols)
2558 {
2559 colDefs[colNo].Null = set;
2560 if (set) // Blank out the values in the member variable
2561 ClearMemberVar(colNo,FALSE); // Must call with FALSE here, or infinite recursion will happen
2562
2563 setCbValueForColumn(colNo);
2564
2565 return(TRUE);
2566 }
2567 else
2568 return(FALSE);
2569
2570 } // wxDbTable::SetColNull()
2571
2572
2573 /********** wxDbTable::GetNewCursor() **********/
2574 HSTMT *wxDbTable::GetNewCursor(bool setCursor, bool bindColumns)
2575 {
2576 HSTMT *newHSTMT = new HSTMT;
2577 wxASSERT(newHSTMT);
2578 if (!newHSTMT)
2579 return(0);
2580
2581 if (SQLAllocStmt(hdbc, newHSTMT) != SQL_SUCCESS)
2582 {
2583 pDb->DispAllErrors(henv, hdbc);
2584 delete newHSTMT;
2585 return(0);
2586 }
2587
2588 if (SQLSetStmtOption(*newHSTMT, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
2589 {
2590 pDb->DispAllErrors(henv, hdbc, *newHSTMT);
2591 delete newHSTMT;
2592 return(0);
2593 }
2594
2595 if (bindColumns)
2596 {
2597 if (!bindCols(*newHSTMT))
2598 {
2599 delete newHSTMT;
2600 return(0);
2601 }
2602 }
2603
2604 if (setCursor)
2605 SetCursor(newHSTMT);
2606
2607 return(newHSTMT);
2608
2609 } // wxDbTable::GetNewCursor()
2610
2611
2612 /********** wxDbTable::DeleteCursor() **********/
2613 bool wxDbTable::DeleteCursor(HSTMT *hstmtDel)
2614 {
2615 bool result = TRUE;
2616
2617 if (!hstmtDel) // Cursor already deleted
2618 return(result);
2619
2620 /*
2621 ODBC 3.0 says to use this form
2622 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
2623
2624 */
2625 if (SQLFreeStmt(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
2626 {
2627 pDb->DispAllErrors(henv, hdbc);
2628 result = FALSE;
2629 }
2630
2631 delete hstmtDel;
2632
2633 return(result);
2634
2635 } // wxDbTable::DeleteCursor()
2636
2637 //////////////////////////////////////////////////////////////
2638 // wxDbGrid support functions
2639 //////////////////////////////////////////////////////////////
2640
2641 void wxDbTable::SetRowMode(const rowmode_t rowmode)
2642 {
2643 if (!m_hstmtGridQuery)
2644 {
2645 m_hstmtGridQuery = GetNewCursor(FALSE,FALSE);
2646 if (!bindCols(*m_hstmtGridQuery))
2647 return;
2648 }
2649
2650 m_rowmode = rowmode;
2651 switch (m_rowmode)
2652 {
2653 case WX_ROW_MODE_QUERY:
2654 SetCursor(m_hstmtGridQuery);
2655 break;
2656 case WX_ROW_MODE_INDIVIDUAL:
2657 SetCursor(hstmtDefault);
2658 break;
2659 default:
2660 wxASSERT(0);
2661 }
2662 } // wxDbTable::SetRowMode()
2663
2664
2665 wxVariant wxDbTable::GetCol(const int colNo) const
2666 {
2667 wxVariant val;
2668 if ((colNo < noCols) && (!IsColNull(colNo)))
2669 {
2670 switch (colDefs[colNo].SqlCtype)
2671 {
2672 case SQL_CHAR:
2673 case SQL_VARCHAR:
2674 val = (wxChar *)(colDefs[colNo].PtrDataObj);
2675 break;
2676 case SQL_C_LONG:
2677 case SQL_C_SLONG:
2678 val = *(long *)(colDefs[colNo].PtrDataObj);
2679 break;
2680 case SQL_C_SHORT:
2681 case SQL_C_SSHORT:
2682 val = (long int )(*(short *)(colDefs[colNo].PtrDataObj));
2683 break;
2684 case SQL_C_ULONG:
2685 val = (long)(*(unsigned long *)(colDefs[colNo].PtrDataObj));
2686 break;
2687 case SQL_C_TINYINT:
2688 val = (long)(*(wxChar *)(colDefs[colNo].PtrDataObj));
2689 break;
2690 case SQL_C_UTINYINT:
2691 val = (long)(*(wxChar *)(colDefs[colNo].PtrDataObj));
2692 break;
2693 case SQL_C_USHORT:
2694 val = (long)(*(UWORD *)(colDefs[colNo].PtrDataObj));
2695 break;
2696 case SQL_C_DATE:
2697 val = (DATE_STRUCT *)(colDefs[colNo].PtrDataObj);
2698 break;
2699 case SQL_C_TIME:
2700 val = (TIME_STRUCT *)(colDefs[colNo].PtrDataObj);
2701 break;
2702 case SQL_C_TIMESTAMP:
2703 val = (TIMESTAMP_STRUCT *)(colDefs[colNo].PtrDataObj);
2704 break;
2705 case SQL_C_DOUBLE:
2706 val = *(double *)(colDefs[colNo].PtrDataObj);
2707 break;
2708 default:
2709 assert(0);
2710 }
2711 }
2712 return val;
2713 } // wxDbTable::GetCol()
2714
2715
2716 void wxDbTable::SetCol(const int colNo, const wxVariant val)
2717 {
2718 //FIXME: Add proper wxDateTime support to wxVariant..
2719 wxDateTime dateval;
2720
2721 SetColNull(colNo, val.IsNull());
2722
2723 if (!val.IsNull())
2724 {
2725 if ((colDefs[colNo].SqlCtype == SQL_C_DATE)
2726 || (colDefs[colNo].SqlCtype == SQL_C_TIME)
2727 || (colDefs[colNo].SqlCtype == SQL_C_TIMESTAMP))
2728 {
2729 //Returns null if invalid!
2730 if (!dateval.ParseDate(val.GetString()))
2731 SetColNull(colNo, TRUE);
2732 }
2733
2734 switch (colDefs[colNo].SqlCtype)
2735 {
2736 case SQL_CHAR:
2737 case SQL_VARCHAR:
2738 csstrncpyt((wxChar *)(colDefs[colNo].PtrDataObj),
2739 val.GetString().c_str(),
2740 colDefs[colNo].SzDataObj-1);
2741 break;
2742 case SQL_C_LONG:
2743 case SQL_C_SLONG:
2744 *(long *)(colDefs[colNo].PtrDataObj) = val;
2745 break;
2746 case SQL_C_SHORT:
2747 case SQL_C_SSHORT:
2748 *(short *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2749 break;
2750 case SQL_C_ULONG:
2751 *(unsigned long *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2752 break;
2753 case SQL_C_TINYINT:
2754 *(wxChar *)(colDefs[colNo].PtrDataObj) = val.GetChar();
2755 break;
2756 case SQL_C_UTINYINT:
2757 *(wxChar *)(colDefs[colNo].PtrDataObj) = val.GetChar();
2758 break;
2759 case SQL_C_USHORT:
2760 *(unsigned short *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2761 break;
2762 //FIXME: Add proper wxDateTime support to wxVariant..
2763 case SQL_C_DATE:
2764 {
2765 DATE_STRUCT *dataptr =
2766 (DATE_STRUCT *)colDefs[colNo].PtrDataObj;
2767
2768 dataptr->year = dateval.GetYear();
2769 dataptr->month = dateval.GetMonth()+1;
2770 dataptr->day = dateval.GetDay();
2771 }
2772 break;
2773 case SQL_C_TIME:
2774 {
2775 TIME_STRUCT *dataptr =
2776 (TIME_STRUCT *)colDefs[colNo].PtrDataObj;
2777
2778 dataptr->hour = dateval.GetHour();
2779 dataptr->minute = dateval.GetMinute();
2780 dataptr->second = dateval.GetSecond();
2781 }
2782 break;
2783 case SQL_C_TIMESTAMP:
2784 {
2785 TIMESTAMP_STRUCT *dataptr =
2786 (TIMESTAMP_STRUCT *)colDefs[colNo].PtrDataObj;
2787 dataptr->year = dateval.GetYear();
2788 dataptr->month = dateval.GetMonth()+1;
2789 dataptr->day = dateval.GetDay();
2790
2791 dataptr->hour = dateval.GetHour();
2792 dataptr->minute = dateval.GetMinute();
2793 dataptr->second = dateval.GetSecond();
2794 }
2795 break;
2796 case SQL_C_DOUBLE:
2797 *(double *)(colDefs[colNo].PtrDataObj) = val;
2798 break;
2799 default:
2800 assert(0);
2801 } // switch
2802 } // if (!val.IsNull())
2803 } // wxDbTable::SetCol()
2804
2805
2806 GenericKey wxDbTable::GetKey()
2807 {
2808 void *blk;
2809 wxChar *blkptr;
2810
2811 blk = malloc(m_keysize);
2812 blkptr = (wxChar *) blk;
2813
2814 int i;
2815 for (i=0; i < noCols; i++)
2816 {
2817 if (colDefs[i].KeyField)
2818 {
2819 memcpy(blkptr,colDefs[i].PtrDataObj, colDefs[i].SzDataObj);
2820 blkptr += colDefs[i].SzDataObj;
2821 }
2822 }
2823
2824 GenericKey k = GenericKey(blk, m_keysize);
2825 free(blk);
2826
2827 return k;
2828 } // wxDbTable::GetKey()
2829
2830
2831 void wxDbTable::SetKey(const GenericKey& k)
2832 {
2833 void *blk;
2834 wxChar *blkptr;
2835
2836 blk = k.GetBlk();
2837 blkptr = (wxChar *)blk;
2838
2839 int i;
2840 for (i=0; i < noCols; i++)
2841 {
2842 if (colDefs[i].KeyField)
2843 {
2844 SetColNull(i, FALSE);
2845 memcpy(colDefs[i].PtrDataObj, blkptr, colDefs[i].SzDataObj);
2846 blkptr += colDefs[i].SzDataObj;
2847 }
2848 }
2849 } // wxDbTable::SetKey()
2850
2851
2852 #endif // wxUSE_ODBC
2853
wxWidgets (Impactor)