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[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 // wxWindows-based application
16 // 2) All enhancements and bug fixes are to be submitted back to the wxWindows
17 // user groups free of all charges for use with the wxWindows 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 wxWindows GUI development toolkit.
21 ///////////////////////////////////////////////////////////////////////////////
22
23 /*
24 // SYNOPSIS START
25 // SYNOPSIS STOP
26 */
27 #ifdef __GNUG__
28 #pragma implementation "dbtable.h"
29 #endif
30
31 #include "wx/wxprec.h"
32
33 #ifdef __BORLANDC__
34 #pragma hdrstop
35 #endif
36
37 #ifdef DBDEBUG_CONSOLE
38 #if wxUSE_IOSTREAMH
39 #include <iostream.h>
40 #else
41 #include <iostream>
42 #endif
43 #include "wx/ioswrap.h"
44 #endif
45
46 #ifndef WX_PRECOMP
47 #include "wx/string.h"
48 #include "wx/object.h"
49 #include "wx/list.h"
50 #include "wx/utils.h"
51 #if wxUSE_GUI
52 #include "wx/msgdlg.h"
53 #endif
54 #include "wx/log.h"
55 #endif
56 #include "wx/filefn.h"
57
58 #if wxUSE_ODBC
59
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 //#include <assert.h>
64
65 #include "wx/dbtable.h"
66
67 #ifdef __UNIX__
68 // The HPUX preprocessor lines below were commented out on 8/20/97
69 // because macros.h currently redefines DEBUG and is unneeded.
70 // # ifdef HPUX
71 // # include <macros.h>
72 // # endif
73 # ifdef LINUX
74 # include <sys/minmax.h>
75 # endif
76 #endif
77
78 ULONG lastTableID = 0;
79
80
81 #ifdef __WXDEBUG__
82 wxList TablesInUse;
83 #endif
84
85
86 /********** wxDbColDef::wxDbColDef() Constructor **********/
87 wxDbColDef::wxDbColDef()
88 {
89 Initialize();
90 } // Constructor
91
92
93 bool wxDbColDef::Initialize()
94 {
95 ColName[0] = 0;
96 DbDataType = DB_DATA_TYPE_INTEGER;
97 SqlCtype = SQL_C_LONG;
98 PtrDataObj = NULL;
99 SzDataObj = 0;
100 KeyField = FALSE;
101 Updateable = FALSE;
102 InsertAllowed = FALSE;
103 DerivedCol = FALSE;
104 CbValue = 0;
105 Null = FALSE;
106
107 return TRUE;
108 } // wxDbColDef::Initialize()
109
110
111 /********** wxDbTable::wxDbTable() Constructor **********/
112 wxDbTable::wxDbTable(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
113 const wxString &qryTblName, bool qryOnly, const wxString &tblPath)
114 {
115 if (!initialize(pwxDb, tblName, numColumns, qryTblName, qryOnly, tblPath))
116 cleanup();
117 } // wxDbTable::wxDbTable()
118
119
120 /***** DEPRECATED: use wxDbTable::wxDbTable() format above *****/
121 wxDbTable::wxDbTable(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
122 const wxChar *qryTblName, bool qryOnly, const wxString &tblPath)
123 {
124 wxString tempQryTblName;
125 tempQryTblName = qryTblName;
126 if (!initialize(pwxDb, tblName, numColumns, tempQryTblName, qryOnly, tblPath))
127 cleanup();
128 } // wxDbTable::wxDbTable()
129
130
131 /********** wxDbTable::~wxDbTable() **********/
132 wxDbTable::~wxDbTable()
133 {
134 this->cleanup();
135 } // wxDbTable::~wxDbTable()
136
137
138 bool wxDbTable::initialize(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns,
139 const wxString &qryTblName, bool qryOnly, const wxString &tblPath)
140 {
141 // Initializing member variables
142 pDb = pwxDb; // Pointer to the wxDb object
143 henv = 0;
144 hdbc = 0;
145 hstmt = 0;
146 m_hstmtGridQuery = 0;
147 hstmtDefault = 0; // Initialized below
148 hstmtCount = 0; // Initialized first time it is needed
149 hstmtInsert = 0;
150 hstmtDelete = 0;
151 hstmtUpdate = 0;
152 hstmtInternal = 0;
153 colDefs = 0;
154 tableID = 0;
155 noCols = numColumns; // Number of cols in the table
156 where.Empty(); // Where clause
157 orderBy.Empty(); // Order By clause
158 from.Empty(); // From clause
159 selectForUpdate = FALSE; // SELECT ... FOR UPDATE; Indicates whether to include the FOR UPDATE phrase
160 queryOnly = qryOnly;
161 insertable = TRUE;
162 tablePath.Empty();
163 tableName.Empty();
164 queryTableName.Empty();
165
166 wxASSERT(tblName.Length());
167 wxASSERT(pDb);
168
169 if (!pDb)
170 return FALSE;
171
172 tableName = tblName; // Table Name
173 if (tblPath.Length())
174 tablePath = tblPath; // Table Path - used for dBase files
175 else
176 tablePath.Empty();
177
178 if (qryTblName.Length()) // Name of the table/view to query
179 queryTableName = qryTblName;
180 else
181 queryTableName = tblName;
182
183 pDb->incrementTableCount();
184
185 wxString s;
186 tableID = ++lastTableID;
187 s.Printf(wxT("wxDbTable constructor (%-20s) tableID:[%6lu] pDb:[%p]"), tblName.c_str(), tableID, pDb);
188
189 #ifdef __WXDEBUG__
190 wxTablesInUse *tableInUse;
191 tableInUse = new wxTablesInUse();
192 tableInUse->tableName = tblName;
193 tableInUse->tableID = tableID;
194 tableInUse->pDb = pDb;
195 TablesInUse.Append(tableInUse);
196 #endif
197
198 pDb->WriteSqlLog(s);
199
200 // Grab the HENV and HDBC from the wxDb object
201 henv = pDb->GetHENV();
202 hdbc = pDb->GetHDBC();
203
204 // Allocate space for column definitions
205 if (noCols)
206 colDefs = new wxDbColDef[noCols]; // Points to the first column definition
207
208 // Allocate statement handles for the table
209 if (!queryOnly)
210 {
211 // Allocate a separate statement handle for performing inserts
212 if (SQLAllocStmt(hdbc, &hstmtInsert) != SQL_SUCCESS)
213 pDb->DispAllErrors(henv, hdbc);
214 // Allocate a separate statement handle for performing deletes
215 if (SQLAllocStmt(hdbc, &hstmtDelete) != SQL_SUCCESS)
216 pDb->DispAllErrors(henv, hdbc);
217 // Allocate a separate statement handle for performing updates
218 if (SQLAllocStmt(hdbc, &hstmtUpdate) != SQL_SUCCESS)
219 pDb->DispAllErrors(henv, hdbc);
220 }
221 // Allocate a separate statement handle for internal use
222 if (SQLAllocStmt(hdbc, &hstmtInternal) != SQL_SUCCESS)
223 pDb->DispAllErrors(henv, hdbc);
224
225 // Set the cursor type for the statement handles
226 cursorType = SQL_CURSOR_STATIC;
227
228 if (SQLSetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
229 {
230 // Check to see if cursor type is supported
231 pDb->GetNextError(henv, hdbc, hstmtInternal);
232 if (! wxStrcmp(pDb->sqlState, wxT("01S02"))) // Option Value Changed
233 {
234 // Datasource does not support static cursors. Driver
235 // will substitute a cursor type. Call SQLGetStmtOption()
236 // to determine which cursor type was selected.
237 if (SQLGetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, &cursorType) != SQL_SUCCESS)
238 pDb->DispAllErrors(henv, hdbc, hstmtInternal);
239 #ifdef DBDEBUG_CONSOLE
240 cout << wxT("Static cursor changed to: ");
241 switch(cursorType)
242 {
243 case SQL_CURSOR_FORWARD_ONLY:
244 cout << wxT("Forward Only");
245 break;
246 case SQL_CURSOR_STATIC:
247 cout << wxT("Static");
248 break;
249 case SQL_CURSOR_KEYSET_DRIVEN:
250 cout << wxT("Keyset Driven");
251 break;
252 case SQL_CURSOR_DYNAMIC:
253 cout << wxT("Dynamic");
254 break;
255 }
256 cout << endl << endl;
257 #endif
258 // BJO20000425
259 if (pDb->FwdOnlyCursors() && cursorType != SQL_CURSOR_FORWARD_ONLY)
260 {
261 // Force the use of a forward only cursor...
262 cursorType = SQL_CURSOR_FORWARD_ONLY;
263 if (SQLSetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
264 {
265 // Should never happen
266 pDb->GetNextError(henv, hdbc, hstmtInternal);
267 return FALSE;
268 }
269 }
270 }
271 else
272 {
273 pDb->DispNextError();
274 pDb->DispAllErrors(henv, hdbc, hstmtInternal);
275 }
276 }
277 #ifdef DBDEBUG_CONSOLE
278 else
279 cout << wxT("Cursor Type set to STATIC") << endl << endl;
280 #endif
281
282 if (!queryOnly)
283 {
284 // Set the cursor type for the INSERT statement handle
285 if (SQLSetStmtOption(hstmtInsert, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
286 pDb->DispAllErrors(henv, hdbc, hstmtInsert);
287 // Set the cursor type for the DELETE statement handle
288 if (SQLSetStmtOption(hstmtDelete, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
289 pDb->DispAllErrors(henv, hdbc, hstmtDelete);
290 // Set the cursor type for the UPDATE statement handle
291 if (SQLSetStmtOption(hstmtUpdate, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
292 pDb->DispAllErrors(henv, hdbc, hstmtUpdate);
293 }
294
295 // Make the default cursor the active cursor
296 hstmtDefault = GetNewCursor(FALSE,FALSE);
297 wxASSERT(hstmtDefault);
298 hstmt = *hstmtDefault;
299
300 return TRUE;
301
302 } // wxDbTable::initialize()
303
304
305 void wxDbTable::cleanup()
306 {
307 wxString s;
308 if (pDb)
309 {
310 s.Printf(wxT("wxDbTable destructor (%-20s) tableID:[%6lu] pDb:[%p]"), tableName.c_str(), tableID, pDb);
311 pDb->WriteSqlLog(s);
312 }
313
314 #ifdef __WXDEBUG__
315 if (tableID)
316 {
317 TablesInUse.DeleteContents(TRUE);
318 bool found = FALSE;
319
320 wxNode *pNode;
321 pNode = TablesInUse.First();
322 while (pNode && !found)
323 {
324 if (((wxTablesInUse *)pNode->Data())->tableID == tableID)
325 {
326 found = TRUE;
327 if (!TablesInUse.DeleteNode(pNode))
328 wxLogDebug (s,wxT("Unable to delete node!"));
329 }
330 else
331 pNode = pNode->Next();
332 }
333 if (!found)
334 {
335 wxString msg;
336 msg.Printf(wxT("Unable to find the tableID in the linked\nlist of tables in use.\n\n%s"),s.c_str());
337 wxLogDebug (msg,wxT("NOTICE..."));
338 }
339 }
340 #endif
341
342 // Decrement the wxDb table count
343 if (pDb)
344 pDb->decrementTableCount();
345
346 // Delete memory allocated for column definitions
347 if (colDefs)
348 delete [] colDefs;
349
350 // Free statement handles
351 if (!queryOnly)
352 {
353 if (hstmtInsert)
354 {
355 /*
356 ODBC 3.0 says to use this form
357 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
358 */
359 if (SQLFreeStmt(hstmtInsert, SQL_DROP) != SQL_SUCCESS)
360 pDb->DispAllErrors(henv, hdbc);
361 }
362
363 if (hstmtDelete)
364 {
365 /*
366 ODBC 3.0 says to use this form
367 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
368 */
369 if (SQLFreeStmt(hstmtDelete, SQL_DROP) != SQL_SUCCESS)
370 pDb->DispAllErrors(henv, hdbc);
371 }
372
373 if (hstmtUpdate)
374 {
375 /*
376 ODBC 3.0 says to use this form
377 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
378 */
379 if (SQLFreeStmt(hstmtUpdate, SQL_DROP) != SQL_SUCCESS)
380 pDb->DispAllErrors(henv, hdbc);
381 }
382 }
383
384 if (hstmtInternal)
385 {
386 if (SQLFreeStmt(hstmtInternal, SQL_DROP) != SQL_SUCCESS)
387 pDb->DispAllErrors(henv, hdbc);
388 }
389
390 // Delete dynamically allocated cursors
391 if (hstmtDefault)
392 DeleteCursor(hstmtDefault);
393
394 if (hstmtCount)
395 DeleteCursor(hstmtCount);
396
397 if (m_hstmtGridQuery)
398 DeleteCursor(m_hstmtGridQuery);
399
400 } // wxDbTable::cleanup()
401
402
403 /***************************** PRIVATE FUNCTIONS *****************************/
404
405
406 /********** wxDbTable::bindParams() **********/
407 bool wxDbTable::bindParams(bool forUpdate)
408 {
409 wxASSERT(!queryOnly);
410 if (queryOnly)
411 return(FALSE);
412
413 SWORD fSqlType = 0;
414 UDWORD precision = 0;
415 SWORD scale = 0;
416
417 // Bind each column of the table that should be bound
418 // to a parameter marker
419 int i;
420 UWORD colNo;
421
422 for (i=0, colNo=1; i < noCols; i++)
423 {
424 if (forUpdate)
425 {
426 if (!colDefs[i].Updateable)
427 continue;
428 }
429 else
430 {
431 if (!colDefs[i].InsertAllowed)
432 continue;
433 }
434
435 switch(colDefs[i].DbDataType)
436 {
437 case DB_DATA_TYPE_VARCHAR:
438 fSqlType = pDb->GetTypeInfVarchar().FsqlType;
439 precision = colDefs[i].SzDataObj;
440 scale = 0;
441 if (colDefs[i].Null)
442 colDefs[i].CbValue = SQL_NULL_DATA;
443 else
444 colDefs[i].CbValue = SQL_NTS;
445 break;
446 case DB_DATA_TYPE_INTEGER:
447 fSqlType = pDb->GetTypeInfInteger().FsqlType;
448 precision = pDb->GetTypeInfInteger().Precision;
449 scale = 0;
450 if (colDefs[i].Null)
451 colDefs[i].CbValue = SQL_NULL_DATA;
452 else
453 colDefs[i].CbValue = 0;
454 break;
455 case DB_DATA_TYPE_FLOAT:
456 fSqlType = pDb->GetTypeInfFloat().FsqlType;
457 precision = pDb->GetTypeInfFloat().Precision;
458 scale = pDb->GetTypeInfFloat().MaximumScale;
459 // SQL Sybase Anywhere v5.5 returned a negative number for the
460 // MaxScale. This caused ODBC to kick out an error on ibscale.
461 // I check for this here and set the scale = precision.
462 //if (scale < 0)
463 // scale = (short) precision;
464 if (colDefs[i].Null)
465 colDefs[i].CbValue = SQL_NULL_DATA;
466 else
467 colDefs[i].CbValue = 0;
468 break;
469 case DB_DATA_TYPE_DATE:
470 fSqlType = pDb->GetTypeInfDate().FsqlType;
471 precision = pDb->GetTypeInfDate().Precision;
472 scale = 0;
473 if (colDefs[i].Null)
474 colDefs[i].CbValue = SQL_NULL_DATA;
475 else
476 colDefs[i].CbValue = 0;
477 break;
478 case DB_DATA_TYPE_BLOB:
479 fSqlType = pDb->GetTypeInfBlob().FsqlType;
480 precision = 50000;
481 scale = 0;
482 if (colDefs[i].Null)
483 colDefs[i].CbValue = SQL_NULL_DATA;
484 else
485 colDefs[i].CbValue = SQL_LEN_DATA_AT_EXEC(colDefs[i].SzDataObj);
486 break;
487 }
488 if (forUpdate)
489 {
490 if (SQLBindParameter(hstmtUpdate, colNo++, SQL_PARAM_INPUT, colDefs[i].SqlCtype,
491 fSqlType, precision, scale, (UCHAR*) colDefs[i].PtrDataObj,
492 precision+1, &colDefs[i].CbValue) != SQL_SUCCESS)
493 {
494 return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
495 }
496 }
497 else
498 {
499 if (SQLBindParameter(hstmtInsert, colNo++, SQL_PARAM_INPUT, colDefs[i].SqlCtype,
500 fSqlType, precision, scale, (UCHAR*) colDefs[i].PtrDataObj,
501 precision+1,&colDefs[i].CbValue) != SQL_SUCCESS)
502 {
503 return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
504 }
505 }
506 }
507
508 // Completed successfully
509 return(TRUE);
510
511 } // wxDbTable::bindParams()
512
513
514 /********** wxDbTable::bindInsertParams() **********/
515 bool wxDbTable::bindInsertParams(void)
516 {
517 return bindParams(FALSE);
518 } // wxDbTable::bindInsertParams()
519
520
521 /********** wxDbTable::bindUpdateParams() **********/
522 bool wxDbTable::bindUpdateParams(void)
523 {
524 return bindParams(TRUE);
525 } // wxDbTable::bindUpdateParams()
526
527
528 /********** wxDbTable::bindCols() **********/
529 bool wxDbTable::bindCols(HSTMT cursor)
530 {
531 static SDWORD cb;
532
533 // Bind each column of the table to a memory address for fetching data
534 UWORD i;
535 for (i = 0; i < noCols; i++)
536 {
537 cb = colDefs[i].CbValue;
538 if (SQLBindCol(cursor, (UWORD)(i+1), colDefs[i].SqlCtype, (UCHAR*) colDefs[i].PtrDataObj,
539 colDefs[i].SzDataObj, &cb ) != SQL_SUCCESS)
540 return (pDb->DispAllErrors(henv, hdbc, cursor));
541 }
542
543 // Completed successfully
544 return(TRUE);
545
546 } // wxDbTable::bindCols()
547
548
549 /********** wxDbTable::getRec() **********/
550 bool wxDbTable::getRec(UWORD fetchType)
551 {
552 RETCODE retcode;
553
554 if (!pDb->FwdOnlyCursors())
555 {
556 // Fetch the NEXT, PREV, FIRST or LAST record, depending on fetchType
557 UDWORD cRowsFetched;
558 UWORD rowStatus;
559
560 retcode = SQLExtendedFetch(hstmt, fetchType, 0, &cRowsFetched, &rowStatus);
561 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
562 {
563 if (retcode == SQL_NO_DATA_FOUND)
564 return(FALSE);
565 else
566 return(pDb->DispAllErrors(henv, hdbc, hstmt));
567 }
568 else
569 {
570 // Set the Null member variable to indicate the Null state
571 // of each column just read in.
572 int i;
573 for (i = 0; i < noCols; i++)
574 colDefs[i].Null = (colDefs[i].CbValue == SQL_NULL_DATA);
575 }
576 }
577 else
578 {
579 // Fetch the next record from the record set
580 retcode = SQLFetch(hstmt);
581 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
582 {
583 if (retcode == SQL_NO_DATA_FOUND)
584 return(FALSE);
585 else
586 return(pDb->DispAllErrors(henv, hdbc, hstmt));
587 }
588 else
589 {
590 // Set the Null member variable to indicate the Null state
591 // of each column just read in.
592 int i;
593 for (i = 0; i < noCols; i++)
594 colDefs[i].Null = (colDefs[i].CbValue == SQL_NULL_DATA);
595 }
596 }
597
598 // Completed successfully
599 return(TRUE);
600
601 } // wxDbTable::getRec()
602
603
604 /********** wxDbTable::execDelete() **********/
605 bool wxDbTable::execDelete(const wxString &pSqlStmt)
606 {
607 RETCODE retcode;
608
609 // Execute the DELETE statement
610 retcode = SQLExecDirect(hstmtDelete, (UCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
611
612 if (retcode == SQL_SUCCESS ||
613 retcode == SQL_NO_DATA_FOUND ||
614 retcode == SQL_SUCCESS_WITH_INFO)
615 {
616 // Record deleted successfully
617 return(TRUE);
618 }
619
620 // Problem deleting record
621 return(pDb->DispAllErrors(henv, hdbc, hstmtDelete));
622
623 } // wxDbTable::execDelete()
624
625
626 /********** wxDbTable::execUpdate() **********/
627 bool wxDbTable::execUpdate(const wxString &pSqlStmt)
628 {
629 RETCODE retcode;
630
631 // Execute the UPDATE statement
632 retcode = SQLExecDirect(hstmtUpdate, (UCHAR FAR *) pSqlStmt.c_str(), SQL_NTS);
633
634 if (retcode == SQL_SUCCESS ||
635 retcode == SQL_NO_DATA_FOUND ||
636 retcode == SQL_SUCCESS_WITH_INFO)
637 {
638 // Record updated successfully
639 return(TRUE);
640 }
641
642 // Problem updating record
643 return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
644
645 } // wxDbTable::execUpdate()
646
647
648 /********** wxDbTable::query() **********/
649 bool wxDbTable::query(int queryType, bool forUpdate, bool distinct, const wxString &pSqlStmt)
650 {
651 wxString sqlStmt;
652
653 if (forUpdate)
654 // The user may wish to select for update, but the DBMS may not be capable
655 selectForUpdate = CanSelectForUpdate();
656 else
657 selectForUpdate = FALSE;
658
659 // Set the SQL SELECT string
660 if (queryType != DB_SELECT_STATEMENT) // A select statement was not passed in,
661 { // so generate a select statement.
662 BuildSelectStmt(sqlStmt, queryType, distinct);
663 pDb->WriteSqlLog(sqlStmt);
664 }
665
666 // Make sure the cursor is closed first
667 if (!CloseCursor(hstmt))
668 return(FALSE);
669
670 // Execute the SQL SELECT statement
671 int retcode;
672 retcode = SQLExecDirect(hstmt, (UCHAR FAR *) (queryType == DB_SELECT_STATEMENT ? pSqlStmt.c_str() : sqlStmt.c_str()), SQL_NTS);
673 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
674 return(pDb->DispAllErrors(henv, hdbc, hstmt));
675
676 // Completed successfully
677 return(TRUE);
678
679 } // wxDbTable::query()
680
681
682 /***************************** PUBLIC FUNCTIONS *****************************/
683
684
685 /********** wxDbTable::Open() **********/
686 bool wxDbTable::Open(bool checkPrivileges, bool checkTableExists)
687 {
688 if (!pDb)
689 return FALSE;
690
691 int i;
692 wxString sqlStmt;
693 wxString s;
694 // int NumKeyCols=0;
695
696 // Calculate the maximum size of the concatenated
697 // keys for use with wxDbGrid
698 m_keysize = 0;
699 for (i=0; i < noCols; i++)
700 {
701 if (colDefs[i].KeyField)
702 {
703 // NumKeyCols++;
704 m_keysize += colDefs[i].SzDataObj;
705 }
706 }
707
708 s.Empty();
709 // Verify that the table exists in the database
710 if (checkTableExists && !pDb->TableExists(tableName, pDb->GetUsername(), tablePath))
711 {
712 s = wxT("Table/view does not exist in the database");
713 if ( *(pDb->dbInf.accessibleTables) == wxT('Y'))
714 s += wxT(", or you have no permissions.\n");
715 else
716 s += wxT(".\n");
717 }
718 else if (checkPrivileges)
719 {
720 // Verify the user has rights to access the table.
721 // Shortcut boolean evaluation to optimize out call to
722 // TablePrivileges
723 //
724 // Unfortunately this optimization doesn't seem to be
725 // reliable!
726 if (// *(pDb->dbInf.accessibleTables) == 'N' &&
727 !pDb->TablePrivileges(tableName,wxT("SELECT"), pDb->GetUsername(), pDb->GetUsername(), tablePath))
728 s = wxT("Current logged in user does not have sufficient privileges to access this table.\n");
729 }
730
731 if (!s.IsEmpty())
732 {
733 wxString p;
734
735 if (!tablePath.IsEmpty())
736 p.Printf(wxT("Error opening '%s/%s'.\n"),tablePath.c_str(),tableName.c_str());
737 else
738 p.Printf(wxT("Error opening '%s'.\n"), tableName.c_str());
739
740 p += s;
741 pDb->LogError(p.GetData());
742
743 return(FALSE);
744 }
745
746 // Bind the member variables for field exchange between
747 // the wxDbTable object and the ODBC record.
748 if (!queryOnly)
749 {
750 if (!bindInsertParams()) // Inserts
751 return(FALSE);
752
753 if (!bindUpdateParams()) // Updates
754 return(FALSE);
755 }
756
757 if (!bindCols(*hstmtDefault)) // Selects
758 return(FALSE);
759
760 if (!bindCols(hstmtInternal)) // Internal use only
761 return(FALSE);
762
763 /*
764 * Do NOT bind the hstmtCount cursor!!!
765 */
766
767 // Build an insert statement using parameter markers
768 if (!queryOnly && noCols > 0)
769 {
770 bool needComma = FALSE;
771 sqlStmt.Printf(wxT("INSERT INTO %s ("),
772 pDb->SQLTableName(tableName.c_str()).c_str());
773 for (i = 0; i < noCols; i++)
774 {
775 if (! colDefs[i].InsertAllowed)
776 continue;
777 if (needComma)
778 sqlStmt += wxT(",");
779 sqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
780 // sqlStmt += colDefs[i].ColName;
781 needComma = TRUE;
782 }
783 needComma = FALSE;
784 sqlStmt += wxT(") VALUES (");
785
786 int insertableCount = 0;
787
788 for (i = 0; i < noCols; i++)
789 {
790 if (! colDefs[i].InsertAllowed)
791 continue;
792 if (needComma)
793 sqlStmt += wxT(",");
794 sqlStmt += wxT("?");
795 needComma = TRUE;
796 insertableCount++;
797 }
798 sqlStmt += wxT(")");
799
800 // Prepare the insert statement for execution
801 if (insertableCount)
802 {
803 if (SQLPrepare(hstmtInsert, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
804 return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
805 }
806 else
807 insertable= FALSE;
808 }
809
810 // Completed successfully
811 return(TRUE);
812
813 } // wxDbTable::Open()
814
815
816 /********** wxDbTable::Query() **********/
817 bool wxDbTable::Query(bool forUpdate, bool distinct)
818 {
819
820 return(query(DB_SELECT_WHERE, forUpdate, distinct));
821
822 } // wxDbTable::Query()
823
824
825 /********** wxDbTable::QueryBySqlStmt() **********/
826 bool wxDbTable::QueryBySqlStmt(const wxString &pSqlStmt)
827 {
828 pDb->WriteSqlLog(pSqlStmt);
829
830 return(query(DB_SELECT_STATEMENT, FALSE, FALSE, pSqlStmt));
831
832 } // wxDbTable::QueryBySqlStmt()
833
834
835 /********** wxDbTable::QueryMatching() **********/
836 bool wxDbTable::QueryMatching(bool forUpdate, bool distinct)
837 {
838
839 return(query(DB_SELECT_MATCHING, forUpdate, distinct));
840
841 } // wxDbTable::QueryMatching()
842
843
844 /********** wxDbTable::QueryOnKeyFields() **********/
845 bool wxDbTable::QueryOnKeyFields(bool forUpdate, bool distinct)
846 {
847
848 return(query(DB_SELECT_KEYFIELDS, forUpdate, distinct));
849
850 } // wxDbTable::QueryOnKeyFields()
851
852
853 /********** wxDbTable::GetPrev() **********/
854 bool wxDbTable::GetPrev(void)
855 {
856 if (pDb->FwdOnlyCursors())
857 {
858 wxFAIL_MSG(wxT("GetPrev()::Backward scrolling cursors are not enabled for this instance of wxDbTable"));
859 return FALSE;
860 }
861 else
862 return(getRec(SQL_FETCH_PRIOR));
863
864 } // wxDbTable::GetPrev()
865
866
867 /********** wxDbTable::operator-- **********/
868 bool wxDbTable::operator--(int)
869 {
870 if (pDb->FwdOnlyCursors())
871 {
872 wxFAIL_MSG(wxT("operator--:Backward scrolling cursors are not enabled for this instance of wxDbTable"));
873 return FALSE;
874 }
875 else
876 return(getRec(SQL_FETCH_PRIOR));
877
878 } // wxDbTable::operator--
879
880
881 /********** wxDbTable::GetFirst() **********/
882 bool wxDbTable::GetFirst(void)
883 {
884 if (pDb->FwdOnlyCursors())
885 {
886 wxFAIL_MSG(wxT("GetFirst():Backward scrolling cursors are not enabled for this instance of wxDbTable"));
887 return FALSE;
888 }
889 else
890 return(getRec(SQL_FETCH_FIRST));
891
892 } // wxDbTable::GetFirst()
893
894
895 /********** wxDbTable::GetLast() **********/
896 bool wxDbTable::GetLast(void)
897 {
898 if (pDb->FwdOnlyCursors())
899 {
900 wxFAIL_MSG(wxT("GetLast()::Backward scrolling cursors are not enabled for this instance of wxDbTable"));
901 return FALSE;
902 }
903 else
904 return(getRec(SQL_FETCH_LAST));
905
906 } // wxDbTable::GetLast()
907
908
909 /********** wxDbTable::BuildDeleteStmt() **********/
910 void wxDbTable::BuildDeleteStmt(wxString &pSqlStmt, int typeOfDel, const wxString &pWhereClause)
911 {
912 wxASSERT(!queryOnly);
913 if (queryOnly)
914 return;
915
916 wxString whereClause;
917
918 whereClause.Empty();
919
920 // Handle the case of DeleteWhere() and the where clause is blank. It should
921 // delete all records from the database in this case.
922 if (typeOfDel == DB_DEL_WHERE && (pWhereClause.Length() == 0))
923 {
924 pSqlStmt.Printf(wxT("DELETE FROM %s"),
925 pDb->SQLTableName(tableName.c_str()).c_str());
926 return;
927 }
928
929 pSqlStmt.Printf(wxT("DELETE FROM %s WHERE "),
930 pDb->SQLTableName(tableName.c_str()).c_str());
931
932 // Append the WHERE clause to the SQL DELETE statement
933 switch(typeOfDel)
934 {
935 case DB_DEL_KEYFIELDS:
936 // If the datasource supports the ROWID column, build
937 // the where on ROWID for efficiency purposes.
938 // e.g. DELETE FROM PARTS WHERE ROWID = '111.222.333'
939 if (CanUpdByROWID())
940 {
941 SDWORD cb;
942 wxChar rowid[wxDB_ROWID_LEN+1];
943
944 // Get the ROWID value. If not successful retreiving the ROWID,
945 // simply fall down through the code and build the WHERE clause
946 // based on the key fields.
947 if (SQLGetData(hstmt, (UWORD)(noCols+1), SQL_C_CHAR, (UCHAR*) rowid, wxDB_ROWID_LEN, &cb) == SQL_SUCCESS)
948 {
949 pSqlStmt += wxT("ROWID = '");
950 pSqlStmt += rowid;
951 pSqlStmt += wxT("'");
952 break;
953 }
954 }
955 // Unable to delete by ROWID, so build a WHERE
956 // clause based on the keyfields.
957 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS);
958 pSqlStmt += whereClause;
959 break;
960 case DB_DEL_WHERE:
961 pSqlStmt += pWhereClause;
962 break;
963 case DB_DEL_MATCHING:
964 BuildWhereClause(whereClause, DB_WHERE_MATCHING);
965 pSqlStmt += whereClause;
966 break;
967 }
968
969 } // BuildDeleteStmt()
970
971
972 /***** DEPRECATED: use wxDbTable::BuildDeleteStmt(wxString &....) form *****/
973 void wxDbTable::BuildDeleteStmt(wxChar *pSqlStmt, int typeOfDel, const wxString &pWhereClause)
974 {
975 wxString tempSqlStmt;
976 BuildDeleteStmt(tempSqlStmt, typeOfDel, pWhereClause);
977 wxStrcpy(pSqlStmt, tempSqlStmt);
978 } // wxDbTable::BuildDeleteStmt()
979
980
981 /********** wxDbTable::BuildSelectStmt() **********/
982 void wxDbTable::BuildSelectStmt(wxString &pSqlStmt, int typeOfSelect, bool distinct)
983 {
984 wxString whereClause;
985 whereClause.Empty();
986
987 // Build a select statement to query the database
988 pSqlStmt = wxT("SELECT ");
989
990 // SELECT DISTINCT values only?
991 if (distinct)
992 pSqlStmt += wxT("DISTINCT ");
993
994 // Was a FROM clause specified to join tables to the base table?
995 // Available for ::Query() only!!!
996 bool appendFromClause = FALSE;
997 #if wxODBC_BACKWARD_COMPATABILITY
998 if (typeOfSelect == DB_SELECT_WHERE && from && wxStrlen(from))
999 appendFromClause = TRUE;
1000 #else
1001 if (typeOfSelect == DB_SELECT_WHERE && from.Length())
1002 appendFromClause = TRUE;
1003 #endif
1004
1005 // Add the column list
1006 int i;
1007 for (i = 0; i < noCols; i++)
1008 {
1009 // If joining tables, the base table column names must be qualified to avoid ambiguity
1010 if (appendFromClause || pDb->Dbms() == dbmsACCESS)
1011 {
1012 pSqlStmt += pDb->SQLTableName(queryTableName.c_str());
1013 // pSqlStmt += queryTableName;
1014 pSqlStmt += wxT(".");
1015 }
1016 pSqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1017 // pSqlStmt += colDefs[i].ColName;
1018 if (i + 1 < noCols)
1019 pSqlStmt += wxT(",");
1020 }
1021
1022 // If the datasource supports ROWID, get this column as well. Exception: Don't retrieve
1023 // the ROWID if querying distinct records. The rowid will always be unique.
1024 if (!distinct && CanUpdByROWID())
1025 {
1026 // If joining tables, the base table column names must be qualified to avoid ambiguity
1027 if (appendFromClause || pDb->Dbms() == dbmsACCESS)
1028 {
1029 pSqlStmt += wxT(",");
1030 pSqlStmt += pDb->SQLTableName(queryTableName);
1031 // pSqlStmt += queryTableName;
1032 pSqlStmt += wxT(".ROWID");
1033 }
1034 else
1035 pSqlStmt += wxT(",ROWID");
1036 }
1037
1038 // Append the FROM tablename portion
1039 pSqlStmt += wxT(" FROM ");
1040 pSqlStmt += pDb->SQLTableName(queryTableName);
1041 // pSqlStmt += queryTableName;
1042
1043 // Sybase uses the HOLDLOCK keyword to lock a record during query.
1044 // The HOLDLOCK keyword follows the table name in the from clause.
1045 // Each table in the from clause must specify HOLDLOCK or
1046 // NOHOLDLOCK (the default). Note: The "FOR UPDATE" clause
1047 // is parsed but ignored in SYBASE Transact-SQL.
1048 if (selectForUpdate && (pDb->Dbms() == dbmsSYBASE_ASA || pDb->Dbms() == dbmsSYBASE_ASE))
1049 pSqlStmt += wxT(" HOLDLOCK");
1050
1051 if (appendFromClause)
1052 pSqlStmt += from;
1053
1054 // Append the WHERE clause. Either append the where clause for the class
1055 // or build a where clause. The typeOfSelect determines this.
1056 switch(typeOfSelect)
1057 {
1058 case DB_SELECT_WHERE:
1059 #if wxODBC_BACKWARD_COMPATABILITY
1060 if (where && wxStrlen(where)) // May not want a where clause!!!
1061 #else
1062 if (where.Length()) // May not want a where clause!!!
1063 #endif
1064 {
1065 pSqlStmt += wxT(" WHERE ");
1066 pSqlStmt += where;
1067 }
1068 break;
1069 case DB_SELECT_KEYFIELDS:
1070 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS);
1071 if (whereClause.Length())
1072 {
1073 pSqlStmt += wxT(" WHERE ");
1074 pSqlStmt += whereClause;
1075 }
1076 break;
1077 case DB_SELECT_MATCHING:
1078 BuildWhereClause(whereClause, DB_WHERE_MATCHING);
1079 if (whereClause.Length())
1080 {
1081 pSqlStmt += wxT(" WHERE ");
1082 pSqlStmt += whereClause;
1083 }
1084 break;
1085 }
1086
1087 // Append the ORDER BY clause
1088 #if wxODBC_BACKWARD_COMPATABILITY
1089 if (orderBy && wxStrlen(orderBy))
1090 #else
1091 if (orderBy.Length())
1092 #endif
1093 {
1094 pSqlStmt += wxT(" ORDER BY ");
1095 pSqlStmt += orderBy;
1096 }
1097
1098 // SELECT FOR UPDATE if told to do so and the datasource is capable. Sybase
1099 // parses the FOR UPDATE clause but ignores it. See the comment above on the
1100 // HOLDLOCK for Sybase.
1101 if (selectForUpdate && CanSelectForUpdate())
1102 pSqlStmt += wxT(" FOR UPDATE");
1103
1104 } // wxDbTable::BuildSelectStmt()
1105
1106
1107 /***** DEPRECATED: use wxDbTable::BuildSelectStmt(wxString &....) form *****/
1108 void wxDbTable::BuildSelectStmt(wxChar *pSqlStmt, int typeOfSelect, bool distinct)
1109 {
1110 wxString tempSqlStmt;
1111 BuildSelectStmt(tempSqlStmt, typeOfSelect, distinct);
1112 wxStrcpy(pSqlStmt, tempSqlStmt);
1113 } // wxDbTable::BuildSelectStmt()
1114
1115
1116 /********** wxDbTable::BuildUpdateStmt() **********/
1117 void wxDbTable::BuildUpdateStmt(wxString &pSqlStmt, int typeOfUpd, const wxString &pWhereClause)
1118 {
1119 wxASSERT(!queryOnly);
1120 if (queryOnly)
1121 return;
1122
1123 wxString whereClause;
1124 whereClause.Empty();
1125
1126 bool firstColumn = TRUE;
1127
1128 pSqlStmt.Printf(wxT("UPDATE %s SET "),
1129 pDb->SQLTableName(tableName.c_str()).c_str());
1130
1131 // Append a list of columns to be updated
1132 int i;
1133 for (i = 0; i < noCols; i++)
1134 {
1135 // Only append Updateable columns
1136 if (colDefs[i].Updateable)
1137 {
1138 if (!firstColumn)
1139 pSqlStmt += wxT(",");
1140 else
1141 firstColumn = FALSE;
1142
1143 pSqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1144 // pSqlStmt += colDefs[i].ColName;
1145 pSqlStmt += wxT(" = ?");
1146 }
1147 }
1148
1149 // Append the WHERE clause to the SQL UPDATE statement
1150 pSqlStmt += wxT(" WHERE ");
1151 switch(typeOfUpd)
1152 {
1153 case DB_UPD_KEYFIELDS:
1154 // If the datasource supports the ROWID column, build
1155 // the where on ROWID for efficiency purposes.
1156 // e.g. UPDATE PARTS SET Col1 = ?, Col2 = ? WHERE ROWID = '111.222.333'
1157 if (CanUpdByROWID())
1158 {
1159 SDWORD cb;
1160 wxChar rowid[wxDB_ROWID_LEN+1];
1161
1162 // Get the ROWID value. If not successful retreiving the ROWID,
1163 // simply fall down through the code and build the WHERE clause
1164 // based on the key fields.
1165 if (SQLGetData(hstmt, (UWORD)(noCols+1), SQL_C_CHAR, (UCHAR*) rowid, wxDB_ROWID_LEN, &cb) == SQL_SUCCESS)
1166 {
1167 pSqlStmt += wxT("ROWID = '");
1168 pSqlStmt += rowid;
1169 pSqlStmt += wxT("'");
1170 break;
1171 }
1172 }
1173 // Unable to delete by ROWID, so build a WHERE
1174 // clause based on the keyfields.
1175 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS);
1176 pSqlStmt += whereClause;
1177 break;
1178 case DB_UPD_WHERE:
1179 pSqlStmt += pWhereClause;
1180 break;
1181 }
1182 } // BuildUpdateStmt()
1183
1184
1185 /***** DEPRECATED: use wxDbTable::BuildUpdateStmt(wxString &....) form *****/
1186 void wxDbTable::BuildUpdateStmt(wxChar *pSqlStmt, int typeOfUpd, const wxString &pWhereClause)
1187 {
1188 wxString tempSqlStmt;
1189 BuildUpdateStmt(tempSqlStmt, typeOfUpd, pWhereClause);
1190 wxStrcpy(pSqlStmt, tempSqlStmt);
1191 } // BuildUpdateStmt()
1192
1193
1194 /********** wxDbTable::BuildWhereClause() **********/
1195 void wxDbTable::BuildWhereClause(wxString &pWhereClause, int typeOfWhere,
1196 const wxString &qualTableName, bool useLikeComparison)
1197 /*
1198 * Note: BuildWhereClause() currently ignores timestamp columns.
1199 * They are not included as part of the where clause.
1200 */
1201 {
1202 bool moreThanOneColumn = FALSE;
1203 wxString colValue;
1204
1205 // Loop through the columns building a where clause as you go
1206 int i;
1207 for (i = 0; i < noCols; i++)
1208 {
1209 // Determine if this column should be included in the WHERE clause
1210 if ((typeOfWhere == DB_WHERE_KEYFIELDS && colDefs[i].KeyField) ||
1211 (typeOfWhere == DB_WHERE_MATCHING && (!IsColNull(i))))
1212 {
1213 // Skip over timestamp columns
1214 if (colDefs[i].SqlCtype == SQL_C_TIMESTAMP)
1215 continue;
1216 // If there is more than 1 column, join them with the keyword "AND"
1217 if (moreThanOneColumn)
1218 pWhereClause += wxT(" AND ");
1219 else
1220 moreThanOneColumn = TRUE;
1221 // Concatenate where phrase for the column
1222 if (qualTableName.Length())
1223 {
1224 pWhereClause += pDb->SQLTableName(qualTableName);
1225 // pWhereClause += qualTableName;
1226 pWhereClause += wxT(".");
1227 }
1228 pWhereClause += pDb->SQLColumnName(colDefs[i].ColName);
1229 // pWhereClause += colDefs[i].ColName;
1230 if (useLikeComparison && (colDefs[i].SqlCtype == SQL_C_CHAR))
1231 pWhereClause += wxT(" LIKE ");
1232 else
1233 pWhereClause += wxT(" = ");
1234 switch(colDefs[i].SqlCtype)
1235 {
1236 case SQL_C_CHAR:
1237 colValue.Printf(wxT("'%s'"), (UCHAR FAR *) colDefs[i].PtrDataObj);
1238 break;
1239 case SQL_C_SSHORT:
1240 colValue.Printf(wxT("%hi"), *((SWORD *) colDefs[i].PtrDataObj));
1241 break;
1242 case SQL_C_USHORT:
1243 colValue.Printf(wxT("%hu"), *((UWORD *) colDefs[i].PtrDataObj));
1244 break;
1245 case SQL_C_SLONG:
1246 colValue.Printf(wxT("%li"), *((SDWORD *) colDefs[i].PtrDataObj));
1247 break;
1248 case SQL_C_ULONG:
1249 colValue.Printf(wxT("%lu"), *((UDWORD *) colDefs[i].PtrDataObj));
1250 break;
1251 case SQL_C_FLOAT:
1252 colValue.Printf(wxT("%.6f"), *((SFLOAT *) colDefs[i].PtrDataObj));
1253 break;
1254 case SQL_C_DOUBLE:
1255 colValue.Printf(wxT("%.6f"), *((SDOUBLE *) colDefs[i].PtrDataObj));
1256 break;
1257 }
1258 pWhereClause += colValue;
1259 }
1260 }
1261 } // wxDbTable::BuildWhereClause()
1262
1263
1264 /***** DEPRECATED: use wxDbTable::BuildWhereClause(wxString &....) form *****/
1265 void wxDbTable::BuildWhereClause(wxChar *pWhereClause, int typeOfWhere,
1266 const wxString &qualTableName, bool useLikeComparison)
1267 {
1268 wxString tempSqlStmt;
1269 BuildWhereClause(tempSqlStmt, typeOfWhere, qualTableName, useLikeComparison);
1270 wxStrcpy(pWhereClause, tempSqlStmt);
1271 } // wxDbTable::BuildWhereClause()
1272
1273
1274 /********** wxDbTable::GetRowNum() **********/
1275 UWORD wxDbTable::GetRowNum(void)
1276 {
1277 UDWORD rowNum;
1278
1279 if (SQLGetStmtOption(hstmt, SQL_ROW_NUMBER, (UCHAR*) &rowNum) != SQL_SUCCESS)
1280 {
1281 pDb->DispAllErrors(henv, hdbc, hstmt);
1282 return(0);
1283 }
1284
1285 // Completed successfully
1286 return((UWORD) rowNum);
1287
1288 } // wxDbTable::GetRowNum()
1289
1290
1291 /********** wxDbTable::CloseCursor() **********/
1292 bool wxDbTable::CloseCursor(HSTMT cursor)
1293 {
1294 if (SQLFreeStmt(cursor, SQL_CLOSE) != SQL_SUCCESS)
1295 return(pDb->DispAllErrors(henv, hdbc, cursor));
1296
1297 // Completed successfully
1298 return(TRUE);
1299
1300 } // wxDbTable::CloseCursor()
1301
1302
1303 /********** wxDbTable::CreateTable() **********/
1304 bool wxDbTable::CreateTable(bool attemptDrop)
1305 {
1306 if (!pDb)
1307 return FALSE;
1308
1309 int i, j;
1310 wxString sqlStmt;
1311
1312 #ifdef DBDEBUG_CONSOLE
1313 cout << wxT("Creating Table ") << tableName << wxT("...") << endl;
1314 #endif
1315
1316 // Drop table first
1317 if (attemptDrop && !DropTable())
1318 return FALSE;
1319
1320 // Create the table
1321 #ifdef DBDEBUG_CONSOLE
1322 for (i = 0; i < noCols; i++)
1323 {
1324 // Exclude derived columns since they are NOT part of the base table
1325 if (colDefs[i].DerivedCol)
1326 continue;
1327 cout << i + 1 << wxT(": ") << colDefs[i].ColName << wxT("; ");
1328 switch(colDefs[i].DbDataType)
1329 {
1330 case DB_DATA_TYPE_VARCHAR:
1331 cout << pDb->GetTypeInfVarchar().TypeName << wxT("(") << colDefs[i].SzDataObj << wxT(")");
1332 break;
1333 case DB_DATA_TYPE_INTEGER:
1334 cout << pDb->GetTypeInfInteger().TypeName;
1335 break;
1336 case DB_DATA_TYPE_FLOAT:
1337 cout << pDb->GetTypeInfFloat().TypeName;
1338 break;
1339 case DB_DATA_TYPE_DATE:
1340 cout << pDb->GetTypeInfDate().TypeName;
1341 break;
1342 case DB_DATA_TYPE_BLOB:
1343 cout << pDb->GetTypeInfBlob().TypeName;
1344 break;
1345 }
1346 cout << endl;
1347 }
1348 #endif
1349
1350 // Build a CREATE TABLE string from the colDefs structure.
1351 bool needComma = FALSE;
1352
1353 sqlStmt.Printf(wxT("CREATE TABLE %s ("),
1354 pDb->SQLTableName(tableName.c_str()).c_str());
1355
1356 for (i = 0; i < noCols; i++)
1357 {
1358 // Exclude derived columns since they are NOT part of the base table
1359 if (colDefs[i].DerivedCol)
1360 continue;
1361 // Comma Delimiter
1362 if (needComma)
1363 sqlStmt += wxT(",");
1364 // Column Name
1365 sqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1366 // sqlStmt += colDefs[i].ColName;
1367 sqlStmt += wxT(" ");
1368 // Column Type
1369 switch(colDefs[i].DbDataType)
1370 {
1371 case DB_DATA_TYPE_VARCHAR:
1372 sqlStmt += pDb->GetTypeInfVarchar().TypeName;
1373 break;
1374 case DB_DATA_TYPE_INTEGER:
1375 sqlStmt += pDb->GetTypeInfInteger().TypeName;
1376 break;
1377 case DB_DATA_TYPE_FLOAT:
1378 sqlStmt += pDb->GetTypeInfFloat().TypeName;
1379 break;
1380 case DB_DATA_TYPE_DATE:
1381 sqlStmt += pDb->GetTypeInfDate().TypeName;
1382 break;
1383 case DB_DATA_TYPE_BLOB:
1384 sqlStmt += pDb->GetTypeInfBlob().TypeName;
1385 break;
1386 }
1387 // For varchars, append the size of the string
1388 if (colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR &&
1389 (pDb->Dbms() != dbmsMY_SQL || pDb->GetTypeInfVarchar().TypeName != "text"))// ||
1390 // colDefs[i].DbDataType == DB_DATA_TYPE_BLOB)
1391 {
1392 wxString s;
1393 s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
1394 sqlStmt += s;
1395 }
1396
1397 if (pDb->Dbms() == dbmsDB2 ||
1398 pDb->Dbms() == dbmsMY_SQL ||
1399 pDb->Dbms() == dbmsSYBASE_ASE ||
1400 pDb->Dbms() == dbmsINTERBASE ||
1401 pDb->Dbms() == dbmsMS_SQL_SERVER)
1402 {
1403 if (colDefs[i].KeyField)
1404 {
1405 sqlStmt += wxT(" NOT NULL");
1406 }
1407 }
1408
1409 needComma = TRUE;
1410 }
1411 // If there is a primary key defined, include it in the create statement
1412 for (i = j = 0; i < noCols; i++)
1413 {
1414 if (colDefs[i].KeyField)
1415 {
1416 j++;
1417 break;
1418 }
1419 }
1420 if (j && (pDb->Dbms() != dbmsDBASE)
1421 && (pDb->Dbms() != dbmsXBASE_SEQUITER)
1422 ) // Found a keyfield
1423 {
1424 switch (pDb->Dbms())
1425 {
1426 case dbmsACCESS:
1427 case dbmsINFORMIX:
1428 case dbmsSYBASE_ASA:
1429 case dbmsSYBASE_ASE:
1430 case dbmsMY_SQL:
1431 {
1432 // MySQL goes out on this one. We also declare the relevant key NON NULL above
1433 sqlStmt += wxT(",PRIMARY KEY (");
1434 break;
1435 }
1436 default:
1437 {
1438 sqlStmt += wxT(",CONSTRAINT ");
1439 // DB2 is limited to 18 characters for index names
1440 if (pDb->Dbms() == dbmsDB2)
1441 {
1442 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."));
1443 sqlStmt += pDb->SQLTableName(tableName.substr(0, 13).c_str());
1444 // sqlStmt += tableName.substr(0, 13);
1445 }
1446 else
1447 sqlStmt += pDb->SQLTableName(tableName.c_str());
1448 // sqlStmt += tableName;
1449
1450 sqlStmt += wxT("_PIDX PRIMARY KEY (");
1451 break;
1452 }
1453 }
1454
1455 // List column name(s) of column(s) comprising the primary key
1456 for (i = j = 0; i < noCols; i++)
1457 {
1458 if (colDefs[i].KeyField)
1459 {
1460 if (j++) // Multi part key, comma separate names
1461 sqlStmt += wxT(",");
1462 sqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1463
1464 if (pDb->Dbms() == dbmsMY_SQL &&
1465 colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR)
1466 {
1467 wxString s;
1468 s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
1469 sqlStmt += s;
1470 }
1471 }
1472 }
1473 sqlStmt += wxT(")");
1474
1475 if (pDb->Dbms() == dbmsINFORMIX ||
1476 pDb->Dbms() == dbmsSYBASE_ASA ||
1477 pDb->Dbms() == dbmsSYBASE_ASE)
1478 {
1479 sqlStmt += wxT(" CONSTRAINT ");
1480 sqlStmt += pDb->SQLTableName(tableName);
1481 // sqlStmt += tableName;
1482 sqlStmt += wxT("_PIDX");
1483 }
1484 }
1485 // Append the closing parentheses for the create table statement
1486 sqlStmt += wxT(")");
1487
1488 pDb->WriteSqlLog(sqlStmt);
1489
1490 #ifdef DBDEBUG_CONSOLE
1491 cout << endl << sqlStmt.c_str() << endl;
1492 #endif
1493
1494 // Execute the CREATE TABLE statement
1495 RETCODE retcode = SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
1496 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
1497 {
1498 pDb->DispAllErrors(henv, hdbc, hstmt);
1499 pDb->RollbackTrans();
1500 CloseCursor(hstmt);
1501 return(FALSE);
1502 }
1503
1504 // Commit the transaction and close the cursor
1505 if (!pDb->CommitTrans())
1506 return(FALSE);
1507 if (!CloseCursor(hstmt))
1508 return(FALSE);
1509
1510 // Database table created successfully
1511 return(TRUE);
1512
1513 } // wxDbTable::CreateTable()
1514
1515
1516 /********** wxDbTable::DropTable() **********/
1517 bool wxDbTable::DropTable()
1518 {
1519 // NOTE: This function returns TRUE if the Table does not exist, but
1520 // only for identified databases. Code will need to be added
1521 // below for any other databases when those databases are defined
1522 // to handle this situation consistently
1523
1524 wxString sqlStmt;
1525
1526 sqlStmt.Printf(wxT("DROP TABLE %s"),
1527 pDb->SQLTableName(tableName.c_str()).c_str());
1528
1529 pDb->WriteSqlLog(sqlStmt);
1530
1531 #ifdef DBDEBUG_CONSOLE
1532 cout << endl << sqlStmt.c_str() << endl;
1533 #endif
1534
1535 RETCODE retcode = SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
1536 if (retcode != SQL_SUCCESS)
1537 {
1538 // Check for "Base table not found" error and ignore
1539 pDb->GetNextError(henv, hdbc, hstmt);
1540 if (wxStrcmp(pDb->sqlState, wxT("S0002")) /*&&
1541 wxStrcmp(pDb->sqlState, wxT("S1000"))*/) // "Base table not found"
1542 {
1543 // Check for product specific error codes
1544 if (!((pDb->Dbms() == dbmsSYBASE_ASA && !wxStrcmp(pDb->sqlState,wxT("42000"))) || // 5.x (and lower?)
1545 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("37000"))) ||
1546 (pDb->Dbms() == dbmsPERVASIVE_SQL && !wxStrcmp(pDb->sqlState,wxT("S1000"))) || // Returns an S1000 then an S0002
1547 (pDb->Dbms() == dbmsPOSTGRES && !wxStrcmp(pDb->sqlState,wxT("08S01")))))
1548 {
1549 pDb->DispNextError();
1550 pDb->DispAllErrors(henv, hdbc, hstmt);
1551 pDb->RollbackTrans();
1552 // CloseCursor(hstmt);
1553 return(FALSE);
1554 }
1555 }
1556 }
1557
1558 // Commit the transaction and close the cursor
1559 if (! pDb->CommitTrans())
1560 return(FALSE);
1561 if (! CloseCursor(hstmt))
1562 return(FALSE);
1563
1564 return(TRUE);
1565 } // wxDbTable::DropTable()
1566
1567
1568 /********** wxDbTable::CreateIndex() **********/
1569 bool wxDbTable::CreateIndex(const wxString &idxName, bool unique, UWORD noIdxCols,
1570 wxDbIdxDef *pIdxDefs, bool attemptDrop)
1571 {
1572 wxString sqlStmt;
1573
1574 // Drop the index first
1575 if (attemptDrop && !DropIndex(idxName))
1576 return (FALSE);
1577
1578 // MySQL (and possibly Sybase ASE?? - gt) require that any columns which are used as portions
1579 // of an index have the columns defined as "NOT NULL". During initial table creation though,
1580 // it may not be known which columns are necessarily going to be part of an index (e.g. the
1581 // table was created, then months later you determine that an additional index while
1582 // give better performance, so you want to add an index).
1583 //
1584 // The following block of code will modify the column definition to make the column be
1585 // defined with the "NOT NULL" qualifier.
1586 if (pDb->Dbms() == dbmsMY_SQL)
1587 {
1588 wxString sqlStmt;
1589 int i;
1590 bool ok = TRUE;
1591 for (i = 0; i < noIdxCols && ok; i++)
1592 {
1593 int j = 0;
1594 bool found = FALSE;
1595 // Find the column definition that has the ColName that matches the
1596 // index column name. We need to do this to get the DB_DATA_TYPE of
1597 // the index column, as MySQL's syntax for the ALTER column requires
1598 // this information
1599 while (!found && (j < this->noCols))
1600 {
1601 if (wxStrcmp(colDefs[j].ColName,pIdxDefs[i].ColName) == 0)
1602 found = TRUE;
1603 if (!found)
1604 j++;
1605 }
1606
1607 if (found)
1608 {
1609 ok = pDb->ModifyColumn(tableName, pIdxDefs[i].ColName,
1610 colDefs[j].DbDataType, colDefs[j].SzDataObj,
1611 wxT("NOT NULL"));
1612
1613 if (!ok)
1614 {
1615 wxODBC_ERRORS retcode;
1616 // Oracle returns a DB_ERR_GENERAL_ERROR if the column is already
1617 // defined to be NOT NULL, but reportedly MySQL doesn't mind.
1618 // This line is just here for debug checking of the value
1619 retcode = (wxODBC_ERRORS)pDb->DB_STATUS;
1620 }
1621 }
1622 else
1623 ok = FALSE;
1624 }
1625 if (ok)
1626 pDb->CommitTrans();
1627 else
1628 {
1629 pDb->RollbackTrans();
1630 return(FALSE);
1631 }
1632 }
1633
1634 // Build a CREATE INDEX statement
1635 sqlStmt = wxT("CREATE ");
1636 if (unique)
1637 sqlStmt += wxT("UNIQUE ");
1638
1639 sqlStmt += wxT("INDEX ");
1640 sqlStmt += pDb->SQLTableName(idxName);
1641 sqlStmt += wxT(" ON ");
1642
1643 sqlStmt += pDb->SQLTableName(tableName);
1644 // sqlStmt += tableName;
1645 sqlStmt += wxT(" (");
1646
1647 // Append list of columns making up index
1648 int i;
1649 for (i = 0; i < noIdxCols; i++)
1650 {
1651 sqlStmt += pDb->SQLColumnName(pIdxDefs[i].ColName);
1652 // sqlStmt += pIdxDefs[i].ColName;
1653
1654 // Postgres and SQL Server 7 do not support the ASC/DESC keywords for index columns
1655 if (!((pDb->Dbms() == dbmsMS_SQL_SERVER) && (strncmp(pDb->dbInf.dbmsVer,"07",2)==0)) &&
1656 !(pDb->Dbms() == dbmsPOSTGRES))
1657 {
1658 if (pIdxDefs[i].Ascending)
1659 sqlStmt += wxT(" ASC");
1660 else
1661 sqlStmt += wxT(" DESC");
1662 }
1663 else
1664 wxASSERT_MSG(pIdxDefs[i].Ascending, "Datasource does not support DESCending index columns");
1665
1666 if ((i + 1) < noIdxCols)
1667 sqlStmt += wxT(",");
1668 }
1669
1670 // Append closing parentheses
1671 sqlStmt += wxT(")");
1672
1673 pDb->WriteSqlLog(sqlStmt);
1674
1675 #ifdef DBDEBUG_CONSOLE
1676 cout << endl << sqlStmt.c_str() << endl << endl;
1677 #endif
1678
1679 // Execute the CREATE INDEX statement
1680 if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
1681 {
1682 pDb->DispAllErrors(henv, hdbc, hstmt);
1683 pDb->RollbackTrans();
1684 CloseCursor(hstmt);
1685 return(FALSE);
1686 }
1687
1688 // Commit the transaction and close the cursor
1689 if (! pDb->CommitTrans())
1690 return(FALSE);
1691 if (! CloseCursor(hstmt))
1692 return(FALSE);
1693
1694 // Index Created Successfully
1695 return(TRUE);
1696
1697 } // wxDbTable::CreateIndex()
1698
1699
1700 /********** wxDbTable::DropIndex() **********/
1701 bool wxDbTable::DropIndex(const wxString &idxName)
1702 {
1703 // NOTE: This function returns TRUE if the Index does not exist, but
1704 // only for identified databases. Code will need to be added
1705 // below for any other databases when those databases are defined
1706 // to handle this situation consistently
1707
1708 wxString sqlStmt;
1709
1710 if (pDb->Dbms() == dbmsACCESS || pDb->Dbms() == dbmsMY_SQL ||
1711 pDb->Dbms() == dbmsDBASE /*|| Paradox needs this syntax too when we add support*/)
1712 sqlStmt.Printf(wxT("DROP INDEX %s ON %s"),
1713 pDb->SQLTableName(idxName.c_str()).c_str(),
1714 pDb->SQLTableName(tableName.c_str()).c_str());
1715 else if ((pDb->Dbms() == dbmsMS_SQL_SERVER) ||
1716 (pDb->Dbms() == dbmsSYBASE_ASE) ||
1717 (pDb->Dbms() == dbmsXBASE_SEQUITER))
1718 sqlStmt.Printf(wxT("DROP INDEX %s.%s"),
1719 pDb->SQLTableName(tableName.c_str()).c_str(),
1720 pDb->SQLTableName(idxName.c_str()).c_str());
1721 else
1722 sqlStmt.Printf(wxT("DROP INDEX %s"),
1723 pDb->SQLTableName(idxName.c_str()).c_str());
1724
1725 pDb->WriteSqlLog(sqlStmt);
1726
1727 #ifdef DBDEBUG_CONSOLE
1728 cout << endl << sqlStmt.c_str() << endl;
1729 #endif
1730
1731 if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
1732 {
1733 // Check for "Index not found" error and ignore
1734 pDb->GetNextError(henv, hdbc, hstmt);
1735 if (wxStrcmp(pDb->sqlState,wxT("S0012"))) // "Index not found"
1736 {
1737 // Check for product specific error codes
1738 if (!((pDb->Dbms() == dbmsSYBASE_ASA && !wxStrcmp(pDb->sqlState,wxT("42000"))) || // v5.x (and lower?)
1739 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("37000"))) ||
1740 (pDb->Dbms() == dbmsMS_SQL_SERVER && !wxStrcmp(pDb->sqlState,wxT("S1000"))) ||
1741 (pDb->Dbms() == dbmsINTERBASE && !wxStrcmp(pDb->sqlState,wxT("S1000"))) ||
1742 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("S0002"))) || // Base table not found
1743 (pDb->Dbms() == dbmsMY_SQL && !wxStrcmp(pDb->sqlState,wxT("42S12"))) || // tested by Christopher Ludwik Marino-Cebulski using v3.23.21beta
1744 (pDb->Dbms() == dbmsPOSTGRES && !wxStrcmp(pDb->sqlState,wxT("08S01")))
1745 ))
1746 {
1747 pDb->DispNextError();
1748 pDb->DispAllErrors(henv, hdbc, hstmt);
1749 pDb->RollbackTrans();
1750 CloseCursor(hstmt);
1751 return(FALSE);
1752 }
1753 }
1754 }
1755
1756 // Commit the transaction and close the cursor
1757 if (! pDb->CommitTrans())
1758 return(FALSE);
1759 if (! CloseCursor(hstmt))
1760 return(FALSE);
1761
1762 return(TRUE);
1763 } // wxDbTable::DropIndex()
1764
1765
1766 /********** wxDbTable::SetOrderByColNums() **********/
1767 bool wxDbTable::SetOrderByColNums(UWORD first, ... )
1768 {
1769 int colNo = first; // using 'int' to be able to look for wxDB_NO_MORE_COLUN_NUMBERS
1770 va_list argptr;
1771
1772 bool abort = FALSE;
1773 wxString tempStr;
1774
1775 va_start(argptr, first); /* Initialize variable arguments. */
1776 while (!abort && (colNo != wxDB_NO_MORE_COLUMN_NUMBERS))
1777 {
1778 // Make sure the passed in column number
1779 // is within the valid range of columns
1780 //
1781 // Valid columns are 0 thru noCols-1
1782 if (colNo >= noCols || colNo < 0)
1783 {
1784 abort = TRUE;
1785 continue;
1786 }
1787
1788 if (colNo != first)
1789 tempStr += wxT(",");
1790
1791 tempStr += colDefs[colNo].ColName;
1792 colNo = va_arg (argptr, int);
1793 }
1794 va_end (argptr); /* Reset variable arguments. */
1795
1796 SetOrderByClause(tempStr);
1797
1798 return (!abort);
1799 } // wxDbTable::SetOrderByColNums()
1800
1801
1802 /********** wxDbTable::Insert() **********/
1803 int wxDbTable::Insert(void)
1804 {
1805 wxASSERT(!queryOnly);
1806 if (queryOnly || !insertable)
1807 return(DB_FAILURE);
1808
1809 bindInsertParams();
1810
1811 // Insert the record by executing the already prepared insert statement
1812 RETCODE retcode;
1813 retcode=SQLExecute(hstmtInsert);
1814 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
1815 {
1816 // Check to see if integrity constraint was violated
1817 pDb->GetNextError(henv, hdbc, hstmtInsert);
1818 if (! wxStrcmp(pDb->sqlState, wxT("23000"))) // Integrity constraint violated
1819 return(DB_ERR_INTEGRITY_CONSTRAINT_VIOL);
1820 else
1821 {
1822 pDb->DispNextError();
1823 pDb->DispAllErrors(henv, hdbc, hstmtInsert);
1824 return(DB_FAILURE);
1825 }
1826 }
1827
1828 // Record inserted into the datasource successfully
1829 return(DB_SUCCESS);
1830
1831 } // wxDbTable::Insert()
1832
1833
1834 /********** wxDbTable::Update() **********/
1835 bool wxDbTable::Update(void)
1836 {
1837 wxASSERT(!queryOnly);
1838 if (queryOnly)
1839 return(FALSE);
1840
1841 wxString sqlStmt;
1842
1843 // Build the SQL UPDATE statement
1844 BuildUpdateStmt(sqlStmt, DB_UPD_KEYFIELDS);
1845
1846 pDb->WriteSqlLog(sqlStmt);
1847
1848 #ifdef DBDEBUG_CONSOLE
1849 cout << endl << sqlStmt.c_str() << endl << endl;
1850 #endif
1851
1852 // Execute the SQL UPDATE statement
1853 return(execUpdate(sqlStmt));
1854
1855 } // wxDbTable::Update()
1856
1857
1858 /********** wxDbTable::Update(pSqlStmt) **********/
1859 bool wxDbTable::Update(const wxString &pSqlStmt)
1860 {
1861 wxASSERT(!queryOnly);
1862 if (queryOnly)
1863 return(FALSE);
1864
1865 pDb->WriteSqlLog(pSqlStmt);
1866
1867 return(execUpdate(pSqlStmt));
1868
1869 } // wxDbTable::Update(pSqlStmt)
1870
1871
1872 /********** wxDbTable::UpdateWhere() **********/
1873 bool wxDbTable::UpdateWhere(const wxString &pWhereClause)
1874 {
1875 wxASSERT(!queryOnly);
1876 if (queryOnly)
1877 return(FALSE);
1878
1879 wxString sqlStmt;
1880
1881 // Build the SQL UPDATE statement
1882 BuildUpdateStmt(sqlStmt, DB_UPD_WHERE, pWhereClause);
1883
1884 pDb->WriteSqlLog(sqlStmt);
1885
1886 #ifdef DBDEBUG_CONSOLE
1887 cout << endl << sqlStmt.c_str() << endl << endl;
1888 #endif
1889
1890 // Execute the SQL UPDATE statement
1891 return(execUpdate(sqlStmt));
1892
1893 } // wxDbTable::UpdateWhere()
1894
1895
1896 /********** wxDbTable::Delete() **********/
1897 bool wxDbTable::Delete(void)
1898 {
1899 wxASSERT(!queryOnly);
1900 if (queryOnly)
1901 return(FALSE);
1902
1903 wxString sqlStmt;
1904 sqlStmt.Empty();
1905
1906 // Build the SQL DELETE statement
1907 BuildDeleteStmt(sqlStmt, DB_DEL_KEYFIELDS);
1908
1909 pDb->WriteSqlLog(sqlStmt);
1910
1911 // Execute the SQL DELETE statement
1912 return(execDelete(sqlStmt));
1913
1914 } // wxDbTable::Delete()
1915
1916
1917 /********** wxDbTable::DeleteWhere() **********/
1918 bool wxDbTable::DeleteWhere(const wxString &pWhereClause)
1919 {
1920 wxASSERT(!queryOnly);
1921 if (queryOnly)
1922 return(FALSE);
1923
1924 wxString sqlStmt;
1925 sqlStmt.Empty();
1926
1927 // Build the SQL DELETE statement
1928 BuildDeleteStmt(sqlStmt, DB_DEL_WHERE, pWhereClause);
1929
1930 pDb->WriteSqlLog(sqlStmt);
1931
1932 // Execute the SQL DELETE statement
1933 return(execDelete(sqlStmt));
1934
1935 } // wxDbTable::DeleteWhere()
1936
1937
1938 /********** wxDbTable::DeleteMatching() **********/
1939 bool wxDbTable::DeleteMatching(void)
1940 {
1941 wxASSERT(!queryOnly);
1942 if (queryOnly)
1943 return(FALSE);
1944
1945 wxString sqlStmt;
1946 sqlStmt.Empty();
1947
1948 // Build the SQL DELETE statement
1949 BuildDeleteStmt(sqlStmt, DB_DEL_MATCHING);
1950
1951 pDb->WriteSqlLog(sqlStmt);
1952
1953 // Execute the SQL DELETE statement
1954 return(execDelete(sqlStmt));
1955
1956 } // wxDbTable::DeleteMatching()
1957
1958
1959 /********** wxDbTable::IsColNull() **********/
1960 bool wxDbTable::IsColNull(UWORD colNo) const
1961 {
1962 /*
1963 This logic is just not right. It would indicate TRUE
1964 if a numeric field were set to a value of 0.
1965
1966 switch(colDefs[colNo].SqlCtype)
1967 {
1968 case SQL_C_CHAR:
1969 return(((UCHAR FAR *) colDefs[colNo].PtrDataObj)[0] == 0);
1970 case SQL_C_SSHORT:
1971 return(( *((SWORD *) colDefs[colNo].PtrDataObj)) == 0);
1972 case SQL_C_USHORT:
1973 return(( *((UWORD*) colDefs[colNo].PtrDataObj)) == 0);
1974 case SQL_C_SLONG:
1975 return(( *((SDWORD *) colDefs[colNo].PtrDataObj)) == 0);
1976 case SQL_C_ULONG:
1977 return(( *((UDWORD *) colDefs[colNo].PtrDataObj)) == 0);
1978 case SQL_C_FLOAT:
1979 return(( *((SFLOAT *) colDefs[colNo].PtrDataObj)) == 0);
1980 case SQL_C_DOUBLE:
1981 return((*((SDOUBLE *) colDefs[colNo].PtrDataObj)) == 0);
1982 case SQL_C_TIMESTAMP:
1983 TIMESTAMP_STRUCT *pDt;
1984 pDt = (TIMESTAMP_STRUCT *) colDefs[colNo].PtrDataObj;
1985 if (pDt->year == 0 && pDt->month == 0 && pDt->day == 0)
1986 return(TRUE);
1987 else
1988 return(FALSE);
1989 default:
1990 return(TRUE);
1991 }
1992 */
1993 return (colDefs[colNo].Null);
1994 } // wxDbTable::IsColNull()
1995
1996
1997 /********** wxDbTable::CanSelectForUpdate() **********/
1998 bool wxDbTable::CanSelectForUpdate(void)
1999 {
2000 if (queryOnly)
2001 return FALSE;
2002
2003 if (pDb->Dbms() == dbmsMY_SQL)
2004 return FALSE;
2005
2006 if ((pDb->Dbms() == dbmsORACLE) ||
2007 (pDb->dbInf.posStmts & SQL_PS_SELECT_FOR_UPDATE))
2008 return(TRUE);
2009 else
2010 return(FALSE);
2011
2012 } // wxDbTable::CanSelectForUpdate()
2013
2014
2015 /********** wxDbTable::CanUpdByROWID() **********/
2016 bool wxDbTable::CanUpdByROWID(void)
2017 {
2018 /*
2019 * NOTE: Returning FALSE for now until this can be debugged,
2020 * as the ROWID is not getting updated correctly
2021 */
2022 return FALSE;
2023 /*
2024 if (pDb->Dbms() == dbmsORACLE)
2025 return(TRUE);
2026 else
2027 return(FALSE);
2028 */
2029 } // wxDbTable::CanUpdByROWID()
2030
2031
2032 /********** wxDbTable::IsCursorClosedOnCommit() **********/
2033 bool wxDbTable::IsCursorClosedOnCommit(void)
2034 {
2035 if (pDb->dbInf.cursorCommitBehavior == SQL_CB_PRESERVE)
2036 return(FALSE);
2037 else
2038 return(TRUE);
2039
2040 } // wxDbTable::IsCursorClosedOnCommit()
2041
2042
2043
2044 /********** wxDbTable::ClearMemberVar() **********/
2045 void wxDbTable::ClearMemberVar(UWORD colNo, bool setToNull)
2046 {
2047 wxASSERT(colNo < noCols);
2048
2049 switch(colDefs[colNo].SqlCtype)
2050 {
2051 case SQL_C_CHAR:
2052 ((UCHAR FAR *) colDefs[colNo].PtrDataObj)[0] = 0;
2053 break;
2054 case SQL_C_SSHORT:
2055 *((SWORD *) colDefs[colNo].PtrDataObj) = 0;
2056 break;
2057 case SQL_C_USHORT:
2058 *((UWORD*) colDefs[colNo].PtrDataObj) = 0;
2059 break;
2060 case SQL_C_SLONG:
2061 *((SDWORD *) colDefs[colNo].PtrDataObj) = 0;
2062 break;
2063 case SQL_C_ULONG:
2064 *((UDWORD *) colDefs[colNo].PtrDataObj) = 0;
2065 break;
2066 case SQL_C_FLOAT:
2067 *((SFLOAT *) colDefs[colNo].PtrDataObj) = 0.0f;
2068 break;
2069 case SQL_C_DOUBLE:
2070 *((SDOUBLE *) colDefs[colNo].PtrDataObj) = 0.0f;
2071 break;
2072 case SQL_C_TIMESTAMP:
2073 TIMESTAMP_STRUCT *pDt;
2074 pDt = (TIMESTAMP_STRUCT *) colDefs[colNo].PtrDataObj;
2075 pDt->year = 0;
2076 pDt->month = 0;
2077 pDt->day = 0;
2078 pDt->hour = 0;
2079 pDt->minute = 0;
2080 pDt->second = 0;
2081 pDt->fraction = 0;
2082 break;
2083 }
2084
2085 if (setToNull)
2086 SetColNull(colNo);
2087 } // wxDbTable::ClearMemberVar()
2088
2089
2090 /********** wxDbTable::ClearMemberVars() **********/
2091 void wxDbTable::ClearMemberVars(bool setToNull)
2092 {
2093 int i;
2094
2095 // Loop through the columns setting each member variable to zero
2096 for (i=0; i < noCols; i++)
2097 ClearMemberVar(i,setToNull);
2098
2099 } // wxDbTable::ClearMemberVars()
2100
2101
2102 /********** wxDbTable::SetQueryTimeout() **********/
2103 bool wxDbTable::SetQueryTimeout(UDWORD nSeconds)
2104 {
2105 if (SQLSetStmtOption(hstmtInsert, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2106 return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
2107 if (SQLSetStmtOption(hstmtUpdate, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2108 return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
2109 if (SQLSetStmtOption(hstmtDelete, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2110 return(pDb->DispAllErrors(henv, hdbc, hstmtDelete));
2111 if (SQLSetStmtOption(hstmtInternal, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2112 return(pDb->DispAllErrors(henv, hdbc, hstmtInternal));
2113
2114 // Completed Successfully
2115 return(TRUE);
2116
2117 } // wxDbTable::SetQueryTimeout()
2118
2119
2120 /********** wxDbTable::SetColDefs() **********/
2121 void wxDbTable::SetColDefs(UWORD index, const wxString &fieldName, int dataType, void *pData,
2122 SWORD cType, int size, bool keyField, bool upd,
2123 bool insAllow, bool derivedCol)
2124 {
2125 wxASSERT_MSG( index < noCols,
2126 _T("Specified column index exceeds the maximum number of columns for this table.") );
2127
2128 if (!colDefs) // May happen if the database connection fails
2129 return;
2130
2131 if (fieldName.Length() > (unsigned int) DB_MAX_COLUMN_NAME_LEN)
2132 {
2133 wxStrncpy(colDefs[index].ColName, fieldName, DB_MAX_COLUMN_NAME_LEN);
2134 colDefs[index].ColName[DB_MAX_COLUMN_NAME_LEN] = 0;
2135
2136 #ifdef __WXDEBUG__
2137 wxString tmpMsg;
2138 tmpMsg.Printf(_T("Column name '%s' is too long. Truncated to '%s'."),
2139 fieldName.c_str(),colDefs[index].ColName);
2140 wxFAIL_MSG(tmpMsg);
2141 #endif // __WXDEBUG__
2142 }
2143 else
2144 wxStrcpy(colDefs[index].ColName, fieldName);
2145
2146 colDefs[index].DbDataType = dataType;
2147 colDefs[index].PtrDataObj = pData;
2148 colDefs[index].SqlCtype = cType;
2149 colDefs[index].SzDataObj = size;
2150 colDefs[index].KeyField = keyField;
2151 colDefs[index].DerivedCol = derivedCol;
2152 // Derived columns by definition would NOT be "Insertable" or "Updateable"
2153 if (derivedCol)
2154 {
2155 colDefs[index].Updateable = FALSE;
2156 colDefs[index].InsertAllowed = FALSE;
2157 }
2158 else
2159 {
2160 colDefs[index].Updateable = upd;
2161 colDefs[index].InsertAllowed = insAllow;
2162 }
2163
2164 colDefs[index].Null = FALSE;
2165
2166 } // wxDbTable::SetColDefs()
2167
2168
2169 /********** wxDbTable::SetColDefs() **********/
2170 wxDbColDataPtr* wxDbTable::SetColDefs(wxDbColInf *pColInfs, UWORD numCols)
2171 {
2172 wxASSERT(pColInfs);
2173 wxDbColDataPtr *pColDataPtrs = NULL;
2174
2175 if (pColInfs)
2176 {
2177 UWORD index;
2178
2179 pColDataPtrs = new wxDbColDataPtr[numCols+1];
2180
2181 for (index = 0; index < numCols; index++)
2182 {
2183 // Process the fields
2184 switch (pColInfs[index].dbDataType)
2185 {
2186 case DB_DATA_TYPE_VARCHAR:
2187 pColDataPtrs[index].PtrDataObj = new wxChar[pColInfs[index].bufferLength+1];
2188 pColDataPtrs[index].SzDataObj = pColInfs[index].columnSize;
2189 pColDataPtrs[index].SqlCtype = SQL_C_CHAR;
2190 break;
2191 case DB_DATA_TYPE_INTEGER:
2192 // Can be long or short
2193 if (pColInfs[index].bufferLength == sizeof(long))
2194 {
2195 pColDataPtrs[index].PtrDataObj = new long;
2196 pColDataPtrs[index].SzDataObj = sizeof(long);
2197 pColDataPtrs[index].SqlCtype = SQL_C_SLONG;
2198 }
2199 else
2200 {
2201 pColDataPtrs[index].PtrDataObj = new short;
2202 pColDataPtrs[index].SzDataObj = sizeof(short);
2203 pColDataPtrs[index].SqlCtype = SQL_C_SSHORT;
2204 }
2205 break;
2206 case DB_DATA_TYPE_FLOAT:
2207 // Can be float or double
2208 if (pColInfs[index].bufferLength == sizeof(float))
2209 {
2210 pColDataPtrs[index].PtrDataObj = new float;
2211 pColDataPtrs[index].SzDataObj = sizeof(float);
2212 pColDataPtrs[index].SqlCtype = SQL_C_FLOAT;
2213 }
2214 else
2215 {
2216 pColDataPtrs[index].PtrDataObj = new double;
2217 pColDataPtrs[index].SzDataObj = sizeof(double);
2218 pColDataPtrs[index].SqlCtype = SQL_C_DOUBLE;
2219 }
2220 break;
2221 case DB_DATA_TYPE_DATE:
2222 pColDataPtrs[index].PtrDataObj = new TIMESTAMP_STRUCT;
2223 pColDataPtrs[index].SzDataObj = sizeof(TIMESTAMP_STRUCT);
2224 pColDataPtrs[index].SqlCtype = SQL_C_TIMESTAMP;
2225 break;
2226 case DB_DATA_TYPE_BLOB:
2227 wxFAIL_MSG(wxT("This form of ::SetColDefs() cannot be used with BLOB columns"));
2228 pColDataPtrs[index].PtrDataObj = /*BLOB ADDITION NEEDED*/NULL;
2229 pColDataPtrs[index].SzDataObj = /*BLOB ADDITION NEEDED*/sizeof(void *);
2230 pColDataPtrs[index].SqlCtype = SQL_VARBINARY;
2231 break;
2232 }
2233 if (pColDataPtrs[index].PtrDataObj != NULL)
2234 SetColDefs (index,pColInfs[index].colName,pColInfs[index].dbDataType, pColDataPtrs[index].PtrDataObj, pColDataPtrs[index].SqlCtype, pColDataPtrs[index].SzDataObj);
2235 else
2236 {
2237 // Unable to build all the column definitions, as either one of
2238 // the calls to "new" failed above, or there was a BLOB field
2239 // to have a column definition for. If BLOBs are to be used,
2240 // the other form of ::SetColDefs() must be used, as it is impossible
2241 // to know the maximum size to create the PtrDataObj to be.
2242 delete [] pColDataPtrs;
2243 return NULL;
2244 }
2245 }
2246 }
2247
2248 return (pColDataPtrs);
2249
2250 } // wxDbTable::SetColDefs()
2251
2252
2253 /********** wxDbTable::SetCursor() **********/
2254 void wxDbTable::SetCursor(HSTMT *hstmtActivate)
2255 {
2256 if (hstmtActivate == wxDB_DEFAULT_CURSOR)
2257 hstmt = *hstmtDefault;
2258 else
2259 hstmt = *hstmtActivate;
2260
2261 } // wxDbTable::SetCursor()
2262
2263
2264 /********** wxDbTable::Count(const wxString &) **********/
2265 ULONG wxDbTable::Count(const wxString &args)
2266 {
2267 ULONG count;
2268 wxString sqlStmt;
2269 SDWORD cb;
2270
2271 // Build a "SELECT COUNT(*) FROM queryTableName [WHERE whereClause]" SQL Statement
2272 sqlStmt = wxT("SELECT COUNT(");
2273 sqlStmt += args;
2274 sqlStmt += wxT(") FROM ");
2275 sqlStmt += pDb->SQLTableName(queryTableName);
2276 // sqlStmt += queryTableName;
2277 #if wxODBC_BACKWARD_COMPATABILITY
2278 if (from && wxStrlen(from))
2279 #else
2280 if (from.Length())
2281 #endif
2282 sqlStmt += from;
2283
2284 // Add the where clause if one is provided
2285 #if wxODBC_BACKWARD_COMPATABILITY
2286 if (where && wxStrlen(where))
2287 #else
2288 if (where.Length())
2289 #endif
2290 {
2291 sqlStmt += wxT(" WHERE ");
2292 sqlStmt += where;
2293 }
2294
2295 pDb->WriteSqlLog(sqlStmt);
2296
2297 // Initialize the Count cursor if it's not already initialized
2298 if (!hstmtCount)
2299 {
2300 hstmtCount = GetNewCursor(FALSE,FALSE);
2301 wxASSERT(hstmtCount);
2302 if (!hstmtCount)
2303 return(0);
2304 }
2305
2306 // Execute the SQL statement
2307 if (SQLExecDirect(*hstmtCount, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
2308 {
2309 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2310 return(0);
2311 }
2312
2313 // Fetch the record
2314 if (SQLFetch(*hstmtCount) != SQL_SUCCESS)
2315 {
2316 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2317 return(0);
2318 }
2319
2320 // Obtain the result
2321 if (SQLGetData(*hstmtCount, (UWORD)1, SQL_C_ULONG, &count, sizeof(count), &cb) != SQL_SUCCESS)
2322 {
2323 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2324 return(0);
2325 }
2326
2327 // Free the cursor
2328 if (SQLFreeStmt(*hstmtCount, SQL_CLOSE) != SQL_SUCCESS)
2329 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2330
2331 // Return the record count
2332 return(count);
2333
2334 } // wxDbTable::Count()
2335
2336
2337 /********** wxDbTable::Refresh() **********/
2338 bool wxDbTable::Refresh(void)
2339 {
2340 bool result = TRUE;
2341
2342 // Switch to the internal cursor so any active cursors are not corrupted
2343 HSTMT currCursor = GetCursor();
2344 hstmt = hstmtInternal;
2345 #if wxODBC_BACKWARD_COMPATABILITY
2346 // Save the where and order by clauses
2347 char *saveWhere = where;
2348 char *saveOrderBy = orderBy;
2349 #else
2350 wxString saveWhere = where;
2351 wxString saveOrderBy = orderBy;
2352 #endif
2353 // Build a where clause to refetch the record with. Try and use the
2354 // ROWID if it's available, ow use the key fields.
2355 wxString whereClause;
2356 whereClause.Empty();
2357
2358 if (CanUpdByROWID())
2359 {
2360 SDWORD cb;
2361 wxChar rowid[wxDB_ROWID_LEN+1];
2362
2363 // Get the ROWID value. If not successful retreiving the ROWID,
2364 // simply fall down through the code and build the WHERE clause
2365 // based on the key fields.
2366 if (SQLGetData(hstmt, (UWORD)(noCols+1), SQL_C_CHAR, (UCHAR*) rowid, wxDB_ROWID_LEN, &cb) == SQL_SUCCESS)
2367 {
2368 whereClause += pDb->SQLTableName(queryTableName);
2369 // whereClause += queryTableName;
2370 whereClause += wxT(".ROWID = '");
2371 whereClause += rowid;
2372 whereClause += wxT("'");
2373 }
2374 }
2375
2376 // If unable to use the ROWID, build a where clause from the keyfields
2377 if (wxStrlen(whereClause) == 0)
2378 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS, queryTableName);
2379
2380 // Requery the record
2381 where = whereClause;
2382 orderBy.Empty();
2383 if (!Query())
2384 result = FALSE;
2385
2386 if (result && !GetNext())
2387 result = FALSE;
2388
2389 // Switch back to original cursor
2390 SetCursor(&currCursor);
2391
2392 // Free the internal cursor
2393 if (SQLFreeStmt(hstmtInternal, SQL_CLOSE) != SQL_SUCCESS)
2394 pDb->DispAllErrors(henv, hdbc, hstmtInternal);
2395
2396 // Restore the original where and order by clauses
2397 where = saveWhere;
2398 orderBy = saveOrderBy;
2399
2400 return(result);
2401
2402 } // wxDbTable::Refresh()
2403
2404
2405 /********** wxDbTable::SetColNull() **********/
2406 bool wxDbTable::SetColNull(UWORD colNo, bool set)
2407 {
2408 if (colNo < noCols)
2409 {
2410 colDefs[colNo].Null = set;
2411 if (set) // Blank out the values in the member variable
2412 ClearMemberVar(colNo,FALSE); // Must call with FALSE, or infinite recursion will happen
2413 return(TRUE);
2414 }
2415 else
2416 return(FALSE);
2417
2418 } // wxDbTable::SetColNull()
2419
2420
2421 /********** wxDbTable::SetColNull() **********/
2422 bool wxDbTable::SetColNull(const wxString &colName, bool set)
2423 {
2424 int i;
2425 for (i = 0; i < noCols; i++)
2426 {
2427 if (!wxStricmp(colName, colDefs[i].ColName))
2428 break;
2429 }
2430
2431 if (i < noCols)
2432 {
2433 colDefs[i].Null = set;
2434 if (set) // Blank out the values in the member variable
2435 ClearMemberVar(i,FALSE); // Must call with FALSE, or infinite recursion will happen
2436 return(TRUE);
2437 }
2438 else
2439 return(FALSE);
2440
2441 } // wxDbTable::SetColNull()
2442
2443
2444 /********** wxDbTable::GetNewCursor() **********/
2445 HSTMT *wxDbTable::GetNewCursor(bool setCursor, bool bindColumns)
2446 {
2447 HSTMT *newHSTMT = new HSTMT;
2448 wxASSERT(newHSTMT);
2449 if (!newHSTMT)
2450 return(0);
2451
2452 if (SQLAllocStmt(hdbc, newHSTMT) != SQL_SUCCESS)
2453 {
2454 pDb->DispAllErrors(henv, hdbc);
2455 delete newHSTMT;
2456 return(0);
2457 }
2458
2459 if (SQLSetStmtOption(*newHSTMT, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
2460 {
2461 pDb->DispAllErrors(henv, hdbc, *newHSTMT);
2462 delete newHSTMT;
2463 return(0);
2464 }
2465
2466 if (bindColumns)
2467 {
2468 if (!bindCols(*newHSTMT))
2469 {
2470 delete newHSTMT;
2471 return(0);
2472 }
2473 }
2474
2475 if (setCursor)
2476 SetCursor(newHSTMT);
2477
2478 return(newHSTMT);
2479
2480 } // wxDbTable::GetNewCursor()
2481
2482
2483 /********** wxDbTable::DeleteCursor() **********/
2484 bool wxDbTable::DeleteCursor(HSTMT *hstmtDel)
2485 {
2486 bool result = TRUE;
2487
2488 if (!hstmtDel) // Cursor already deleted
2489 return(result);
2490
2491 /*
2492 ODBC 3.0 says to use this form
2493 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
2494
2495 */
2496 if (SQLFreeStmt(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
2497 {
2498 pDb->DispAllErrors(henv, hdbc);
2499 result = FALSE;
2500 }
2501
2502 delete hstmtDel;
2503
2504 return(result);
2505
2506 } // wxDbTable::DeleteCursor()
2507
2508 //////////////////////////////////////////////////////////////
2509 // wxDbGrid support functions
2510 //////////////////////////////////////////////////////////////
2511
2512 void wxDbTable::SetRowMode(const rowmode_t rowmode)
2513 {
2514 if (!m_hstmtGridQuery)
2515 {
2516 m_hstmtGridQuery = GetNewCursor(FALSE,FALSE);
2517 if (!bindCols(*m_hstmtGridQuery))
2518 return;
2519 }
2520
2521 m_rowmode = rowmode;
2522 switch (m_rowmode)
2523 {
2524 case WX_ROW_MODE_QUERY:
2525 SetCursor(m_hstmtGridQuery);
2526 break;
2527 case WX_ROW_MODE_INDIVIDUAL:
2528 SetCursor(hstmtDefault);
2529 break;
2530 default:
2531 assert(0);
2532 }
2533 } // wxDbTable::SetRowMode()
2534
2535
2536 wxVariant wxDbTable::GetCol(const int colNo) const
2537 {
2538 wxVariant val;
2539 if ((colNo < noCols) && (!IsColNull(colNo)))
2540 {
2541 switch (colDefs[colNo].SqlCtype)
2542 {
2543 case SQL_CHAR:
2544 case SQL_VARCHAR:
2545 val = (wxChar *)(colDefs[colNo].PtrDataObj);
2546 break;
2547 case SQL_C_LONG:
2548 case SQL_C_SLONG:
2549 val = *(long *)(colDefs[colNo].PtrDataObj);
2550 break;
2551 case SQL_C_SHORT:
2552 case SQL_C_SSHORT:
2553 val = (long int )(*(short *)(colDefs[colNo].PtrDataObj));
2554 break;
2555 case SQL_C_ULONG:
2556 val = (long)(*(unsigned long *)(colDefs[colNo].PtrDataObj));
2557 break;
2558 case SQL_C_TINYINT:
2559 val = (long)(*(char *)(colDefs[colNo].PtrDataObj));
2560 break;
2561 case SQL_C_UTINYINT:
2562 val = (long)(*(unsigned char *)(colDefs[colNo].PtrDataObj));
2563 break;
2564 case SQL_C_USHORT:
2565 val = (long)(*(UWORD *)(colDefs[colNo].PtrDataObj));
2566 break;
2567 case SQL_C_DATE:
2568 val = (DATE_STRUCT *)(colDefs[colNo].PtrDataObj);
2569 break;
2570 case SQL_C_TIME:
2571 val = (TIME_STRUCT *)(colDefs[colNo].PtrDataObj);
2572 break;
2573 case SQL_C_TIMESTAMP:
2574 val = (TIMESTAMP_STRUCT *)(colDefs[colNo].PtrDataObj);
2575 break;
2576 case SQL_C_DOUBLE:
2577 val = *(double *)(colDefs[colNo].PtrDataObj);
2578 break;
2579 default:
2580 assert(0);
2581 }
2582 }
2583 return val;
2584 } // wxDbTable::GetCol()
2585
2586
2587 void csstrncpyt(char *s, const char *t, int n)
2588 {
2589 while ( (*s++ = *t++) != '\0' && --n )
2590 ;
2591
2592 *s = '\0';
2593 }
2594
2595 void wxDbTable::SetCol(const int colNo, const wxVariant val)
2596 {
2597 //FIXME: Add proper wxDateTime support to wxVariant..
2598 wxDateTime dateval;
2599
2600 SetColNull(colNo, val.IsNull());
2601
2602 if (!val.IsNull())
2603 {
2604 if ((colDefs[colNo].SqlCtype == SQL_C_DATE)
2605 || (colDefs[colNo].SqlCtype == SQL_C_TIME)
2606 || (colDefs[colNo].SqlCtype == SQL_C_TIMESTAMP))
2607 {
2608 //Returns null if invalid!
2609 if (!dateval.ParseDate(val.GetString()))
2610 SetColNull(colNo, TRUE);
2611 }
2612
2613 switch (colDefs[colNo].SqlCtype)
2614 {
2615 case SQL_CHAR:
2616 case SQL_VARCHAR:
2617 csstrncpyt((char *)(colDefs[colNo].PtrDataObj),
2618 val.GetString().c_str(),
2619 colDefs[colNo].SzDataObj-1);
2620 break;
2621 case SQL_C_LONG:
2622 case SQL_C_SLONG:
2623 *(long *)(colDefs[colNo].PtrDataObj) = val;
2624 break;
2625 case SQL_C_SHORT:
2626 case SQL_C_SSHORT:
2627 *(short *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2628 break;
2629 case SQL_C_ULONG:
2630 *(unsigned long *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2631 break;
2632 case SQL_C_TINYINT:
2633 *(char *)(colDefs[colNo].PtrDataObj) = val.GetChar();
2634 break;
2635 case SQL_C_UTINYINT:
2636 *(unsigned char *)(colDefs[colNo].PtrDataObj) = val.GetChar();
2637 break;
2638 case SQL_C_USHORT:
2639 *(unsigned short *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2640 break;
2641 //FIXME: Add proper wxDateTime support to wxVariant..
2642 case SQL_C_DATE:
2643 {
2644 DATE_STRUCT *dataptr =
2645 (DATE_STRUCT *)colDefs[colNo].PtrDataObj;
2646
2647 dataptr->year = dateval.GetYear();
2648 dataptr->month = dateval.GetMonth()+1;
2649 dataptr->day = dateval.GetDay();
2650 }
2651 break;
2652 case SQL_C_TIME:
2653 {
2654 TIME_STRUCT *dataptr =
2655 (TIME_STRUCT *)colDefs[colNo].PtrDataObj;
2656
2657 dataptr->hour = dateval.GetHour();
2658 dataptr->minute = dateval.GetMinute();
2659 dataptr->second = dateval.GetSecond();
2660 }
2661 break;
2662 case SQL_C_TIMESTAMP:
2663 {
2664 TIMESTAMP_STRUCT *dataptr =
2665 (TIMESTAMP_STRUCT *)colDefs[colNo].PtrDataObj;
2666 dataptr->year = dateval.GetYear();
2667 dataptr->month = dateval.GetMonth()+1;
2668 dataptr->day = dateval.GetDay();
2669
2670 dataptr->hour = dateval.GetHour();
2671 dataptr->minute = dateval.GetMinute();
2672 dataptr->second = dateval.GetSecond();
2673 }
2674 break;
2675 case SQL_C_DOUBLE:
2676 *(double *)(colDefs[colNo].PtrDataObj) = val;
2677 break;
2678 default:
2679 assert(0);
2680 } // switch
2681 } // if (!val.IsNull())
2682 } // wxDbTable::SetCol()
2683
2684
2685 GenericKey wxDbTable::GetKey()
2686 {
2687 void *blk;
2688 wxChar *blkptr;
2689
2690 blk = malloc(m_keysize);
2691 blkptr = (wxChar *) blk;
2692
2693 int i;
2694 for (i=0; i < noCols; i++)
2695 {
2696 if (colDefs[i].KeyField)
2697 {
2698 memcpy(blkptr,colDefs[i].PtrDataObj, colDefs[i].SzDataObj);
2699 blkptr += colDefs[i].SzDataObj;
2700 }
2701 }
2702
2703 GenericKey k = GenericKey(blk, m_keysize);
2704 free(blk);
2705
2706 return k;
2707 } // wxDbTable::GetKey()
2708
2709
2710 void wxDbTable::SetKey(const GenericKey& k)
2711 {
2712 void *blk;
2713 wxChar *blkptr;
2714
2715 blk = k.GetBlk();
2716 blkptr = (wxChar *)blk;
2717
2718 int i;
2719 for (i=0; i < noCols; i++)
2720 {
2721 if (colDefs[i].KeyField)
2722 {
2723 SetColNull(i, FALSE);
2724 memcpy(colDefs[i].PtrDataObj, blkptr, colDefs[i].SzDataObj);
2725 blkptr += colDefs[i].SzDataObj;
2726 }
2727 }
2728 } // wxDbTable::SetKey()
2729
2730
2731 #endif // wxUSE_ODBC
2732
wxWidgets (Impactor)