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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) // Found a keyfield
1421 {
1422 switch (pDb->Dbms())
1423 {
1424 case dbmsACCESS:
1425 case dbmsINFORMIX:
1426 case dbmsSYBASE_ASA:
1427 case dbmsSYBASE_ASE:
1428 case dbmsMY_SQL:
1429 {
1430 // MySQL goes out on this one. We also declare the relevant key NON NULL above
1431 sqlStmt += wxT(",PRIMARY KEY (");
1432 break;
1433 }
1434 default:
1435 {
1436 sqlStmt += wxT(",CONSTRAINT ");
1437 // DB2 is limited to 18 characters for index names
1438 if (pDb->Dbms() == dbmsDB2)
1439 {
1440 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."));
1441 sqlStmt += pDb->SQLTableName(tableName.substr(0, 13).c_str());
1442 // sqlStmt += tableName.substr(0, 13);
1443 }
1444 else
1445 sqlStmt += pDb->SQLTableName(tableName.c_str());
1446 // sqlStmt += tableName;
1447
1448 sqlStmt += wxT("_PIDX PRIMARY KEY (");
1449 break;
1450 }
1451 }
1452
1453 // List column name(s) of column(s) comprising the primary key
1454 for (i = j = 0; i < noCols; i++)
1455 {
1456 if (colDefs[i].KeyField)
1457 {
1458 if (j++) // Multi part key, comma separate names
1459 sqlStmt += wxT(",");
1460 sqlStmt += pDb->SQLColumnName(colDefs[i].ColName);
1461
1462 if (pDb->Dbms() == dbmsMY_SQL &&
1463 colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR)
1464 {
1465 wxString s;
1466 s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
1467 sqlStmt += s;
1468 }
1469 }
1470 }
1471 sqlStmt += wxT(")");
1472
1473 if (pDb->Dbms() == dbmsINFORMIX ||
1474 pDb->Dbms() == dbmsSYBASE_ASA ||
1475 pDb->Dbms() == dbmsSYBASE_ASE)
1476 {
1477 sqlStmt += wxT(" CONSTRAINT ");
1478 sqlStmt += pDb->SQLTableName(tableName);
1479 // sqlStmt += tableName;
1480 sqlStmt += wxT("_PIDX");
1481 }
1482 }
1483 // Append the closing parentheses for the create table statement
1484 sqlStmt += wxT(")");
1485
1486 pDb->WriteSqlLog(sqlStmt);
1487
1488 #ifdef DBDEBUG_CONSOLE
1489 cout << endl << sqlStmt.c_str() << endl;
1490 #endif
1491
1492 // Execute the CREATE TABLE statement
1493 RETCODE retcode = SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
1494 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
1495 {
1496 pDb->DispAllErrors(henv, hdbc, hstmt);
1497 pDb->RollbackTrans();
1498 CloseCursor(hstmt);
1499 return(FALSE);
1500 }
1501
1502 // Commit the transaction and close the cursor
1503 if (!pDb->CommitTrans())
1504 return(FALSE);
1505 if (!CloseCursor(hstmt))
1506 return(FALSE);
1507
1508 // Database table created successfully
1509 return(TRUE);
1510
1511 } // wxDbTable::CreateTable()
1512
1513
1514 /********** wxDbTable::DropTable() **********/
1515 bool wxDbTable::DropTable()
1516 {
1517 // NOTE: This function returns TRUE if the Table does not exist, but
1518 // only for identified databases. Code will need to be added
1519 // below for any other databases when those databases are defined
1520 // to handle this situation consistently
1521
1522 wxString sqlStmt;
1523
1524 sqlStmt.Printf(wxT("DROP TABLE %s"),
1525 pDb->SQLTableName(tableName.c_str()).c_str());
1526
1527 pDb->WriteSqlLog(sqlStmt);
1528
1529 #ifdef DBDEBUG_CONSOLE
1530 cout << endl << sqlStmt.c_str() << endl;
1531 #endif
1532
1533 RETCODE retcode = SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS);
1534 if (retcode != SQL_SUCCESS)
1535 {
1536 // Check for "Base table not found" error and ignore
1537 pDb->GetNextError(henv, hdbc, hstmt);
1538 if (wxStrcmp(pDb->sqlState, wxT("S0002")) /*&&
1539 wxStrcmp(pDb->sqlState, wxT("S1000"))*/) // "Base table not found"
1540 {
1541 // Check for product specific error codes
1542 if (!((pDb->Dbms() == dbmsSYBASE_ASA && !wxStrcmp(pDb->sqlState,wxT("42000"))) || // 5.x (and lower?)
1543 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("37000"))) ||
1544 (pDb->Dbms() == dbmsPERVASIVE_SQL && !wxStrcmp(pDb->sqlState,wxT("S1000"))) || // Returns an S1000 then an S0002
1545 (pDb->Dbms() == dbmsPOSTGRES && !wxStrcmp(pDb->sqlState,wxT("08S01")))))
1546 {
1547 pDb->DispNextError();
1548 pDb->DispAllErrors(henv, hdbc, hstmt);
1549 pDb->RollbackTrans();
1550 // CloseCursor(hstmt);
1551 return(FALSE);
1552 }
1553 }
1554 }
1555
1556 // Commit the transaction and close the cursor
1557 if (! pDb->CommitTrans())
1558 return(FALSE);
1559 if (! CloseCursor(hstmt))
1560 return(FALSE);
1561
1562 return(TRUE);
1563 } // wxDbTable::DropTable()
1564
1565
1566 /********** wxDbTable::CreateIndex() **********/
1567 bool wxDbTable::CreateIndex(const wxString &idxName, bool unique, UWORD noIdxCols,
1568 wxDbIdxDef *pIdxDefs, bool attemptDrop)
1569 {
1570 wxString sqlStmt;
1571
1572 // Drop the index first
1573 if (attemptDrop && !DropIndex(idxName))
1574 return (FALSE);
1575
1576 // MySQL (and possibly Sybase ASE?? - gt) require that any columns which are used as portions
1577 // of an index have the columns defined as "NOT NULL". During initial table creation though,
1578 // it may not be known which columns are necessarily going to be part of an index (e.g. the
1579 // table was created, then months later you determine that an additional index while
1580 // give better performance, so you want to add an index).
1581 //
1582 // The following block of code will modify the column definition to make the column be
1583 // defined with the "NOT NULL" qualifier.
1584 if (pDb->Dbms() == dbmsMY_SQL)
1585 {
1586 wxString sqlStmt;
1587 int i;
1588 bool ok = TRUE;
1589 for (i = 0; i < noIdxCols && ok; i++)
1590 {
1591 int j = 0;
1592 bool found = FALSE;
1593 // Find the column definition that has the ColName that matches the
1594 // index column name. We need to do this to get the DB_DATA_TYPE of
1595 // the index column, as MySQL's syntax for the ALTER column requires
1596 // this information
1597 while (!found && (j < this->noCols))
1598 {
1599 if (wxStrcmp(colDefs[j].ColName,pIdxDefs[i].ColName) == 0)
1600 found = TRUE;
1601 if (!found)
1602 j++;
1603 }
1604
1605 if (found)
1606 {
1607 ok = pDb->ModifyColumn(tableName, pIdxDefs[i].ColName,
1608 colDefs[j].DbDataType, colDefs[j].SzDataObj,
1609 wxT("NOT NULL"));
1610
1611 if (!ok)
1612 {
1613 wxODBC_ERRORS retcode;
1614 // Oracle returns a DB_ERR_GENERAL_ERROR if the column is already
1615 // defined to be NOT NULL, but reportedly MySQL doesn't mind.
1616 // This line is just here for debug checking of the value
1617 retcode = (wxODBC_ERRORS)pDb->DB_STATUS;
1618 }
1619 }
1620 else
1621 ok = FALSE;
1622 }
1623 if (ok)
1624 pDb->CommitTrans();
1625 else
1626 {
1627 pDb->RollbackTrans();
1628 return(FALSE);
1629 }
1630 }
1631
1632 // Build a CREATE INDEX statement
1633 sqlStmt = wxT("CREATE ");
1634 if (unique)
1635 sqlStmt += wxT("UNIQUE ");
1636
1637 sqlStmt += wxT("INDEX ");
1638 sqlStmt += pDb->SQLTableName(idxName);
1639 sqlStmt += wxT(" ON ");
1640
1641 sqlStmt += pDb->SQLTableName(tableName);
1642 // sqlStmt += tableName;
1643 sqlStmt += wxT(" (");
1644
1645 // Append list of columns making up index
1646 int i;
1647 for (i = 0; i < noIdxCols; i++)
1648 {
1649 sqlStmt += pDb->SQLColumnName(pIdxDefs[i].ColName);
1650 // sqlStmt += pIdxDefs[i].ColName;
1651
1652 // Postgres and SQL Server 7 do not support the ASC/DESC keywords for index columns
1653 if (!((pDb->Dbms() == dbmsMS_SQL_SERVER) && (strncmp(pDb->dbInf.dbmsVer,"07",2)==0)) &&
1654 !(pDb->Dbms() == dbmsPOSTGRES))
1655 {
1656 if (pIdxDefs[i].Ascending)
1657 sqlStmt += wxT(" ASC");
1658 else
1659 sqlStmt += wxT(" DESC");
1660 }
1661 else
1662 wxASSERT_MSG(pIdxDefs[i].Ascending, "Datasource does not support DESCending index columns");
1663
1664 if ((i + 1) < noIdxCols)
1665 sqlStmt += wxT(",");
1666 }
1667
1668 // Append closing parentheses
1669 sqlStmt += wxT(")");
1670
1671 pDb->WriteSqlLog(sqlStmt);
1672
1673 #ifdef DBDEBUG_CONSOLE
1674 cout << endl << sqlStmt.c_str() << endl << endl;
1675 #endif
1676
1677 // Execute the CREATE INDEX statement
1678 if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
1679 {
1680 pDb->DispAllErrors(henv, hdbc, hstmt);
1681 pDb->RollbackTrans();
1682 CloseCursor(hstmt);
1683 return(FALSE);
1684 }
1685
1686 // Commit the transaction and close the cursor
1687 if (! pDb->CommitTrans())
1688 return(FALSE);
1689 if (! CloseCursor(hstmt))
1690 return(FALSE);
1691
1692 // Index Created Successfully
1693 return(TRUE);
1694
1695 } // wxDbTable::CreateIndex()
1696
1697
1698 /********** wxDbTable::DropIndex() **********/
1699 bool wxDbTable::DropIndex(const wxString &idxName)
1700 {
1701 // NOTE: This function returns TRUE if the Index does not exist, but
1702 // only for identified databases. Code will need to be added
1703 // below for any other databases when those databases are defined
1704 // to handle this situation consistently
1705
1706 wxString sqlStmt;
1707
1708 if (pDb->Dbms() == dbmsACCESS || pDb->Dbms() == dbmsMY_SQL ||
1709 pDb->Dbms() == dbmsDBASE /*|| Paradox needs this syntax too when we add support*/)
1710 sqlStmt.Printf(wxT("DROP INDEX %s ON %s"),
1711 pDb->SQLTableName(idxName.c_str()).c_str(),
1712 pDb->SQLTableName(tableName.c_str()).c_str());
1713 else if ((pDb->Dbms() == dbmsMS_SQL_SERVER) ||
1714 (pDb->Dbms() == dbmsSYBASE_ASE))
1715 sqlStmt.Printf(wxT("DROP INDEX %s.%s"),
1716 pDb->SQLTableName(tableName.c_str()).c_str(),
1717 pDb->SQLTableName(idxName.c_str()).c_str());
1718 else
1719 sqlStmt.Printf(wxT("DROP INDEX %s"),
1720 pDb->SQLTableName(idxName.c_str()).c_str());
1721
1722 pDb->WriteSqlLog(sqlStmt);
1723
1724 #ifdef DBDEBUG_CONSOLE
1725 cout << endl << sqlStmt.c_str() << endl;
1726 #endif
1727
1728 if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
1729 {
1730 // Check for "Index not found" error and ignore
1731 pDb->GetNextError(henv, hdbc, hstmt);
1732 if (wxStrcmp(pDb->sqlState,wxT("S0012"))) // "Index not found"
1733 {
1734 // Check for product specific error codes
1735 if (!((pDb->Dbms() == dbmsSYBASE_ASA && !wxStrcmp(pDb->sqlState,wxT("42000"))) || // v5.x (and lower?)
1736 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("37000"))) ||
1737 (pDb->Dbms() == dbmsMS_SQL_SERVER && !wxStrcmp(pDb->sqlState,wxT("S1000"))) ||
1738 (pDb->Dbms() == dbmsINTERBASE && !wxStrcmp(pDb->sqlState,wxT("S1000"))) ||
1739 (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("S0002"))) || // Base table not found
1740 (pDb->Dbms() == dbmsMY_SQL && !wxStrcmp(pDb->sqlState,wxT("42S12"))) || // tested by Christopher Ludwik Marino-Cebulski using v3.23.21beta
1741 (pDb->Dbms() == dbmsPOSTGRES && !wxStrcmp(pDb->sqlState,wxT("08S01")))
1742 ))
1743 {
1744 pDb->DispNextError();
1745 pDb->DispAllErrors(henv, hdbc, hstmt);
1746 pDb->RollbackTrans();
1747 CloseCursor(hstmt);
1748 return(FALSE);
1749 }
1750 }
1751 }
1752
1753 // Commit the transaction and close the cursor
1754 if (! pDb->CommitTrans())
1755 return(FALSE);
1756 if (! CloseCursor(hstmt))
1757 return(FALSE);
1758
1759 return(TRUE);
1760 } // wxDbTable::DropIndex()
1761
1762
1763 /********** wxDbTable::SetOrderByColNums() **********/
1764 bool wxDbTable::SetOrderByColNums(UWORD first, ... )
1765 {
1766 int colNo = first; // using 'int' to be able to look for wxDB_NO_MORE_COLUN_NUMBERS
1767 va_list argptr;
1768
1769 bool abort = FALSE;
1770 wxString tempStr;
1771
1772 va_start(argptr, first); /* Initialize variable arguments. */
1773 while (!abort && (colNo != wxDB_NO_MORE_COLUMN_NUMBERS))
1774 {
1775 // Make sure the passed in column number
1776 // is within the valid range of columns
1777 //
1778 // Valid columns are 0 thru noCols-1
1779 if (colNo >= noCols || colNo < 0)
1780 {
1781 abort = TRUE;
1782 continue;
1783 }
1784
1785 if (colNo != first)
1786 tempStr += wxT(",");
1787
1788 tempStr += colDefs[colNo].ColName;
1789 colNo = va_arg (argptr, int);
1790 }
1791 va_end (argptr); /* Reset variable arguments. */
1792
1793 SetOrderByClause(tempStr);
1794
1795 return (!abort);
1796 } // wxDbTable::SetOrderByColNums()
1797
1798
1799 /********** wxDbTable::Insert() **********/
1800 int wxDbTable::Insert(void)
1801 {
1802 wxASSERT(!queryOnly);
1803 if (queryOnly || !insertable)
1804 return(DB_FAILURE);
1805
1806 bindInsertParams();
1807
1808 // Insert the record by executing the already prepared insert statement
1809 RETCODE retcode;
1810 retcode=SQLExecute(hstmtInsert);
1811 if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
1812 {
1813 // Check to see if integrity constraint was violated
1814 pDb->GetNextError(henv, hdbc, hstmtInsert);
1815 if (! wxStrcmp(pDb->sqlState, wxT("23000"))) // Integrity constraint violated
1816 return(DB_ERR_INTEGRITY_CONSTRAINT_VIOL);
1817 else
1818 {
1819 pDb->DispNextError();
1820 pDb->DispAllErrors(henv, hdbc, hstmtInsert);
1821 return(DB_FAILURE);
1822 }
1823 }
1824
1825 // Record inserted into the datasource successfully
1826 return(DB_SUCCESS);
1827
1828 } // wxDbTable::Insert()
1829
1830
1831 /********** wxDbTable::Update() **********/
1832 bool wxDbTable::Update(void)
1833 {
1834 wxASSERT(!queryOnly);
1835 if (queryOnly)
1836 return(FALSE);
1837
1838 wxString sqlStmt;
1839
1840 // Build the SQL UPDATE statement
1841 BuildUpdateStmt(sqlStmt, DB_UPD_KEYFIELDS);
1842
1843 pDb->WriteSqlLog(sqlStmt);
1844
1845 #ifdef DBDEBUG_CONSOLE
1846 cout << endl << sqlStmt.c_str() << endl << endl;
1847 #endif
1848
1849 // Execute the SQL UPDATE statement
1850 return(execUpdate(sqlStmt));
1851
1852 } // wxDbTable::Update()
1853
1854
1855 /********** wxDbTable::Update(pSqlStmt) **********/
1856 bool wxDbTable::Update(const wxString &pSqlStmt)
1857 {
1858 wxASSERT(!queryOnly);
1859 if (queryOnly)
1860 return(FALSE);
1861
1862 pDb->WriteSqlLog(pSqlStmt);
1863
1864 return(execUpdate(pSqlStmt));
1865
1866 } // wxDbTable::Update(pSqlStmt)
1867
1868
1869 /********** wxDbTable::UpdateWhere() **********/
1870 bool wxDbTable::UpdateWhere(const wxString &pWhereClause)
1871 {
1872 wxASSERT(!queryOnly);
1873 if (queryOnly)
1874 return(FALSE);
1875
1876 wxString sqlStmt;
1877
1878 // Build the SQL UPDATE statement
1879 BuildUpdateStmt(sqlStmt, DB_UPD_WHERE, pWhereClause);
1880
1881 pDb->WriteSqlLog(sqlStmt);
1882
1883 #ifdef DBDEBUG_CONSOLE
1884 cout << endl << sqlStmt.c_str() << endl << endl;
1885 #endif
1886
1887 // Execute the SQL UPDATE statement
1888 return(execUpdate(sqlStmt));
1889
1890 } // wxDbTable::UpdateWhere()
1891
1892
1893 /********** wxDbTable::Delete() **********/
1894 bool wxDbTable::Delete(void)
1895 {
1896 wxASSERT(!queryOnly);
1897 if (queryOnly)
1898 return(FALSE);
1899
1900 wxString sqlStmt;
1901 sqlStmt.Empty();
1902
1903 // Build the SQL DELETE statement
1904 BuildDeleteStmt(sqlStmt, DB_DEL_KEYFIELDS);
1905
1906 pDb->WriteSqlLog(sqlStmt);
1907
1908 // Execute the SQL DELETE statement
1909 return(execDelete(sqlStmt));
1910
1911 } // wxDbTable::Delete()
1912
1913
1914 /********** wxDbTable::DeleteWhere() **********/
1915 bool wxDbTable::DeleteWhere(const wxString &pWhereClause)
1916 {
1917 wxASSERT(!queryOnly);
1918 if (queryOnly)
1919 return(FALSE);
1920
1921 wxString sqlStmt;
1922 sqlStmt.Empty();
1923
1924 // Build the SQL DELETE statement
1925 BuildDeleteStmt(sqlStmt, DB_DEL_WHERE, pWhereClause);
1926
1927 pDb->WriteSqlLog(sqlStmt);
1928
1929 // Execute the SQL DELETE statement
1930 return(execDelete(sqlStmt));
1931
1932 } // wxDbTable::DeleteWhere()
1933
1934
1935 /********** wxDbTable::DeleteMatching() **********/
1936 bool wxDbTable::DeleteMatching(void)
1937 {
1938 wxASSERT(!queryOnly);
1939 if (queryOnly)
1940 return(FALSE);
1941
1942 wxString sqlStmt;
1943 sqlStmt.Empty();
1944
1945 // Build the SQL DELETE statement
1946 BuildDeleteStmt(sqlStmt, DB_DEL_MATCHING);
1947
1948 pDb->WriteSqlLog(sqlStmt);
1949
1950 // Execute the SQL DELETE statement
1951 return(execDelete(sqlStmt));
1952
1953 } // wxDbTable::DeleteMatching()
1954
1955
1956 /********** wxDbTable::IsColNull() **********/
1957 bool wxDbTable::IsColNull(UWORD colNo) const
1958 {
1959 /*
1960 This logic is just not right. It would indicate TRUE
1961 if a numeric field were set to a value of 0.
1962
1963 switch(colDefs[colNo].SqlCtype)
1964 {
1965 case SQL_C_CHAR:
1966 return(((UCHAR FAR *) colDefs[colNo].PtrDataObj)[0] == 0);
1967 case SQL_C_SSHORT:
1968 return(( *((SWORD *) colDefs[colNo].PtrDataObj)) == 0);
1969 case SQL_C_USHORT:
1970 return(( *((UWORD*) colDefs[colNo].PtrDataObj)) == 0);
1971 case SQL_C_SLONG:
1972 return(( *((SDWORD *) colDefs[colNo].PtrDataObj)) == 0);
1973 case SQL_C_ULONG:
1974 return(( *((UDWORD *) colDefs[colNo].PtrDataObj)) == 0);
1975 case SQL_C_FLOAT:
1976 return(( *((SFLOAT *) colDefs[colNo].PtrDataObj)) == 0);
1977 case SQL_C_DOUBLE:
1978 return((*((SDOUBLE *) colDefs[colNo].PtrDataObj)) == 0);
1979 case SQL_C_TIMESTAMP:
1980 TIMESTAMP_STRUCT *pDt;
1981 pDt = (TIMESTAMP_STRUCT *) colDefs[colNo].PtrDataObj;
1982 if (pDt->year == 0 && pDt->month == 0 && pDt->day == 0)
1983 return(TRUE);
1984 else
1985 return(FALSE);
1986 default:
1987 return(TRUE);
1988 }
1989 */
1990 return (colDefs[colNo].Null);
1991 } // wxDbTable::IsColNull()
1992
1993
1994 /********** wxDbTable::CanSelectForUpdate() **********/
1995 bool wxDbTable::CanSelectForUpdate(void)
1996 {
1997 if (queryOnly)
1998 return FALSE;
1999
2000 if (pDb->Dbms() == dbmsMY_SQL)
2001 return FALSE;
2002
2003 if ((pDb->Dbms() == dbmsORACLE) ||
2004 (pDb->dbInf.posStmts & SQL_PS_SELECT_FOR_UPDATE))
2005 return(TRUE);
2006 else
2007 return(FALSE);
2008
2009 } // wxDbTable::CanSelectForUpdate()
2010
2011
2012 /********** wxDbTable::CanUpdByROWID() **********/
2013 bool wxDbTable::CanUpdByROWID(void)
2014 {
2015 /*
2016 * NOTE: Returning FALSE for now until this can be debugged,
2017 * as the ROWID is not getting updated correctly
2018 */
2019 return FALSE;
2020 /*
2021 if (pDb->Dbms() == dbmsORACLE)
2022 return(TRUE);
2023 else
2024 return(FALSE);
2025 */
2026 } // wxDbTable::CanUpdByROWID()
2027
2028
2029 /********** wxDbTable::IsCursorClosedOnCommit() **********/
2030 bool wxDbTable::IsCursorClosedOnCommit(void)
2031 {
2032 if (pDb->dbInf.cursorCommitBehavior == SQL_CB_PRESERVE)
2033 return(FALSE);
2034 else
2035 return(TRUE);
2036
2037 } // wxDbTable::IsCursorClosedOnCommit()
2038
2039
2040
2041 /********** wxDbTable::ClearMemberVar() **********/
2042 void wxDbTable::ClearMemberVar(UWORD colNo, bool setToNull)
2043 {
2044 wxASSERT(colNo < noCols);
2045
2046 switch(colDefs[colNo].SqlCtype)
2047 {
2048 case SQL_C_CHAR:
2049 ((UCHAR FAR *) colDefs[colNo].PtrDataObj)[0] = 0;
2050 break;
2051 case SQL_C_SSHORT:
2052 *((SWORD *) colDefs[colNo].PtrDataObj) = 0;
2053 break;
2054 case SQL_C_USHORT:
2055 *((UWORD*) colDefs[colNo].PtrDataObj) = 0;
2056 break;
2057 case SQL_C_SLONG:
2058 *((SDWORD *) colDefs[colNo].PtrDataObj) = 0;
2059 break;
2060 case SQL_C_ULONG:
2061 *((UDWORD *) colDefs[colNo].PtrDataObj) = 0;
2062 break;
2063 case SQL_C_FLOAT:
2064 *((SFLOAT *) colDefs[colNo].PtrDataObj) = 0.0f;
2065 break;
2066 case SQL_C_DOUBLE:
2067 *((SDOUBLE *) colDefs[colNo].PtrDataObj) = 0.0f;
2068 break;
2069 case SQL_C_TIMESTAMP:
2070 TIMESTAMP_STRUCT *pDt;
2071 pDt = (TIMESTAMP_STRUCT *) colDefs[colNo].PtrDataObj;
2072 pDt->year = 0;
2073 pDt->month = 0;
2074 pDt->day = 0;
2075 pDt->hour = 0;
2076 pDt->minute = 0;
2077 pDt->second = 0;
2078 pDt->fraction = 0;
2079 break;
2080 }
2081
2082 if (setToNull)
2083 SetColNull(colNo);
2084 } // wxDbTable::ClearMemberVar()
2085
2086
2087 /********** wxDbTable::ClearMemberVars() **********/
2088 void wxDbTable::ClearMemberVars(bool setToNull)
2089 {
2090 int i;
2091
2092 // Loop through the columns setting each member variable to zero
2093 for (i=0; i < noCols; i++)
2094 ClearMemberVar(i,setToNull);
2095
2096 } // wxDbTable::ClearMemberVars()
2097
2098
2099 /********** wxDbTable::SetQueryTimeout() **********/
2100 bool wxDbTable::SetQueryTimeout(UDWORD nSeconds)
2101 {
2102 if (SQLSetStmtOption(hstmtInsert, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2103 return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
2104 if (SQLSetStmtOption(hstmtUpdate, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2105 return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
2106 if (SQLSetStmtOption(hstmtDelete, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2107 return(pDb->DispAllErrors(henv, hdbc, hstmtDelete));
2108 if (SQLSetStmtOption(hstmtInternal, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
2109 return(pDb->DispAllErrors(henv, hdbc, hstmtInternal));
2110
2111 // Completed Successfully
2112 return(TRUE);
2113
2114 } // wxDbTable::SetQueryTimeout()
2115
2116
2117 /********** wxDbTable::SetColDefs() **********/
2118 void wxDbTable::SetColDefs(UWORD index, const wxString &fieldName, int dataType, void *pData,
2119 SWORD cType, int size, bool keyField, bool upd,
2120 bool insAllow, bool derivedCol)
2121 {
2122 wxASSERT_MSG( index < noCols,
2123 _T("Specified column index exceeds the maximum number of columns for this table.") );
2124
2125 if (!colDefs) // May happen if the database connection fails
2126 return;
2127
2128 if (fieldName.Length() > (unsigned int) DB_MAX_COLUMN_NAME_LEN)
2129 {
2130 wxStrncpy(colDefs[index].ColName, fieldName, DB_MAX_COLUMN_NAME_LEN);
2131 colDefs[index].ColName[DB_MAX_COLUMN_NAME_LEN] = 0;
2132
2133 #ifdef __WXDEBUG__
2134 wxString tmpMsg;
2135 tmpMsg.Printf(_T("Column name '%s' is too long. Truncated to '%s'."),
2136 fieldName.c_str(),colDefs[index].ColName);
2137 wxFAIL_MSG(tmpMsg);
2138 #endif // __WXDEBUG__
2139 }
2140 else
2141 wxStrcpy(colDefs[index].ColName, fieldName);
2142
2143 colDefs[index].DbDataType = dataType;
2144 colDefs[index].PtrDataObj = pData;
2145 colDefs[index].SqlCtype = cType;
2146 colDefs[index].SzDataObj = size;
2147 colDefs[index].KeyField = keyField;
2148 colDefs[index].DerivedCol = derivedCol;
2149 // Derived columns by definition would NOT be "Insertable" or "Updateable"
2150 if (derivedCol)
2151 {
2152 colDefs[index].Updateable = FALSE;
2153 colDefs[index].InsertAllowed = FALSE;
2154 }
2155 else
2156 {
2157 colDefs[index].Updateable = upd;
2158 colDefs[index].InsertAllowed = insAllow;
2159 }
2160
2161 colDefs[index].Null = FALSE;
2162
2163 } // wxDbTable::SetColDefs()
2164
2165
2166 /********** wxDbTable::SetColDefs() **********/
2167 wxDbColDataPtr* wxDbTable::SetColDefs(wxDbColInf *pColInfs, UWORD numCols)
2168 {
2169 wxASSERT(pColInfs);
2170 wxDbColDataPtr *pColDataPtrs = NULL;
2171
2172 if (pColInfs)
2173 {
2174 UWORD index;
2175
2176 pColDataPtrs = new wxDbColDataPtr[numCols+1];
2177
2178 for (index = 0; index < numCols; index++)
2179 {
2180 // Process the fields
2181 switch (pColInfs[index].dbDataType)
2182 {
2183 case DB_DATA_TYPE_VARCHAR:
2184 pColDataPtrs[index].PtrDataObj = new wxChar[pColInfs[index].bufferLength+1];
2185 pColDataPtrs[index].SzDataObj = pColInfs[index].columnSize;
2186 pColDataPtrs[index].SqlCtype = SQL_C_CHAR;
2187 break;
2188 case DB_DATA_TYPE_INTEGER:
2189 // Can be long or short
2190 if (pColInfs[index].bufferLength == sizeof(long))
2191 {
2192 pColDataPtrs[index].PtrDataObj = new long;
2193 pColDataPtrs[index].SzDataObj = sizeof(long);
2194 pColDataPtrs[index].SqlCtype = SQL_C_SLONG;
2195 }
2196 else
2197 {
2198 pColDataPtrs[index].PtrDataObj = new short;
2199 pColDataPtrs[index].SzDataObj = sizeof(short);
2200 pColDataPtrs[index].SqlCtype = SQL_C_SSHORT;
2201 }
2202 break;
2203 case DB_DATA_TYPE_FLOAT:
2204 // Can be float or double
2205 if (pColInfs[index].bufferLength == sizeof(float))
2206 {
2207 pColDataPtrs[index].PtrDataObj = new float;
2208 pColDataPtrs[index].SzDataObj = sizeof(float);
2209 pColDataPtrs[index].SqlCtype = SQL_C_FLOAT;
2210 }
2211 else
2212 {
2213 pColDataPtrs[index].PtrDataObj = new double;
2214 pColDataPtrs[index].SzDataObj = sizeof(double);
2215 pColDataPtrs[index].SqlCtype = SQL_C_DOUBLE;
2216 }
2217 break;
2218 case DB_DATA_TYPE_DATE:
2219 pColDataPtrs[index].PtrDataObj = new TIMESTAMP_STRUCT;
2220 pColDataPtrs[index].SzDataObj = sizeof(TIMESTAMP_STRUCT);
2221 pColDataPtrs[index].SqlCtype = SQL_C_TIMESTAMP;
2222 break;
2223 case DB_DATA_TYPE_BLOB:
2224 wxFAIL_MSG(wxT("This form of ::SetColDefs() cannot be used with BLOB columns"));
2225 pColDataPtrs[index].PtrDataObj = /*BLOB ADDITION NEEDED*/NULL;
2226 pColDataPtrs[index].SzDataObj = /*BLOB ADDITION NEEDED*/sizeof(void *);
2227 pColDataPtrs[index].SqlCtype = SQL_VARBINARY;
2228 break;
2229 }
2230 if (pColDataPtrs[index].PtrDataObj != NULL)
2231 SetColDefs (index,pColInfs[index].colName,pColInfs[index].dbDataType, pColDataPtrs[index].PtrDataObj, pColDataPtrs[index].SqlCtype, pColDataPtrs[index].SzDataObj);
2232 else
2233 {
2234 // Unable to build all the column definitions, as either one of
2235 // the calls to "new" failed above, or there was a BLOB field
2236 // to have a column definition for. If BLOBs are to be used,
2237 // the other form of ::SetColDefs() must be used, as it is impossible
2238 // to know the maximum size to create the PtrDataObj to be.
2239 delete [] pColDataPtrs;
2240 return NULL;
2241 }
2242 }
2243 }
2244
2245 return (pColDataPtrs);
2246
2247 } // wxDbTable::SetColDefs()
2248
2249
2250 /********** wxDbTable::SetCursor() **********/
2251 void wxDbTable::SetCursor(HSTMT *hstmtActivate)
2252 {
2253 if (hstmtActivate == wxDB_DEFAULT_CURSOR)
2254 hstmt = *hstmtDefault;
2255 else
2256 hstmt = *hstmtActivate;
2257
2258 } // wxDbTable::SetCursor()
2259
2260
2261 /********** wxDbTable::Count(const wxString &) **********/
2262 ULONG wxDbTable::Count(const wxString &args)
2263 {
2264 ULONG count;
2265 wxString sqlStmt;
2266 SDWORD cb;
2267
2268 // Build a "SELECT COUNT(*) FROM queryTableName [WHERE whereClause]" SQL Statement
2269 sqlStmt = wxT("SELECT COUNT(");
2270 sqlStmt += args;
2271 sqlStmt += wxT(") FROM ");
2272 sqlStmt += pDb->SQLTableName(queryTableName);
2273 // sqlStmt += queryTableName;
2274 #if wxODBC_BACKWARD_COMPATABILITY
2275 if (from && wxStrlen(from))
2276 #else
2277 if (from.Length())
2278 #endif
2279 sqlStmt += from;
2280
2281 // Add the where clause if one is provided
2282 #if wxODBC_BACKWARD_COMPATABILITY
2283 if (where && wxStrlen(where))
2284 #else
2285 if (where.Length())
2286 #endif
2287 {
2288 sqlStmt += wxT(" WHERE ");
2289 sqlStmt += where;
2290 }
2291
2292 pDb->WriteSqlLog(sqlStmt);
2293
2294 // Initialize the Count cursor if it's not already initialized
2295 if (!hstmtCount)
2296 {
2297 hstmtCount = GetNewCursor(FALSE,FALSE);
2298 wxASSERT(hstmtCount);
2299 if (!hstmtCount)
2300 return(0);
2301 }
2302
2303 // Execute the SQL statement
2304 if (SQLExecDirect(*hstmtCount, (UCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS)
2305 {
2306 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2307 return(0);
2308 }
2309
2310 // Fetch the record
2311 if (SQLFetch(*hstmtCount) != SQL_SUCCESS)
2312 {
2313 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2314 return(0);
2315 }
2316
2317 // Obtain the result
2318 if (SQLGetData(*hstmtCount, (UWORD)1, SQL_C_ULONG, &count, sizeof(count), &cb) != SQL_SUCCESS)
2319 {
2320 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2321 return(0);
2322 }
2323
2324 // Free the cursor
2325 if (SQLFreeStmt(*hstmtCount, SQL_CLOSE) != SQL_SUCCESS)
2326 pDb->DispAllErrors(henv, hdbc, *hstmtCount);
2327
2328 // Return the record count
2329 return(count);
2330
2331 } // wxDbTable::Count()
2332
2333
2334 /********** wxDbTable::Refresh() **********/
2335 bool wxDbTable::Refresh(void)
2336 {
2337 bool result = TRUE;
2338
2339 // Switch to the internal cursor so any active cursors are not corrupted
2340 HSTMT currCursor = GetCursor();
2341 hstmt = hstmtInternal;
2342 #if wxODBC_BACKWARD_COMPATABILITY
2343 // Save the where and order by clauses
2344 char *saveWhere = where;
2345 char *saveOrderBy = orderBy;
2346 #else
2347 wxString saveWhere = where;
2348 wxString saveOrderBy = orderBy;
2349 #endif
2350 // Build a where clause to refetch the record with. Try and use the
2351 // ROWID if it's available, ow use the key fields.
2352 wxString whereClause;
2353 whereClause.Empty();
2354
2355 if (CanUpdByROWID())
2356 {
2357 SDWORD cb;
2358 wxChar rowid[wxDB_ROWID_LEN+1];
2359
2360 // Get the ROWID value. If not successful retreiving the ROWID,
2361 // simply fall down through the code and build the WHERE clause
2362 // based on the key fields.
2363 if (SQLGetData(hstmt, (UWORD)(noCols+1), SQL_C_CHAR, (UCHAR*) rowid, wxDB_ROWID_LEN, &cb) == SQL_SUCCESS)
2364 {
2365 whereClause += pDb->SQLTableName(queryTableName);
2366 // whereClause += queryTableName;
2367 whereClause += wxT(".ROWID = '");
2368 whereClause += rowid;
2369 whereClause += wxT("'");
2370 }
2371 }
2372
2373 // If unable to use the ROWID, build a where clause from the keyfields
2374 if (wxStrlen(whereClause) == 0)
2375 BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS, queryTableName);
2376
2377 // Requery the record
2378 where = whereClause;
2379 orderBy.Empty();
2380 if (!Query())
2381 result = FALSE;
2382
2383 if (result && !GetNext())
2384 result = FALSE;
2385
2386 // Switch back to original cursor
2387 SetCursor(&currCursor);
2388
2389 // Free the internal cursor
2390 if (SQLFreeStmt(hstmtInternal, SQL_CLOSE) != SQL_SUCCESS)
2391 pDb->DispAllErrors(henv, hdbc, hstmtInternal);
2392
2393 // Restore the original where and order by clauses
2394 where = saveWhere;
2395 orderBy = saveOrderBy;
2396
2397 return(result);
2398
2399 } // wxDbTable::Refresh()
2400
2401
2402 /********** wxDbTable::SetColNull() **********/
2403 bool wxDbTable::SetColNull(UWORD colNo, bool set)
2404 {
2405 if (colNo < noCols)
2406 {
2407 colDefs[colNo].Null = set;
2408 if (set) // Blank out the values in the member variable
2409 ClearMemberVar(colNo,FALSE); // Must call with FALSE, or infinite recursion will happen
2410 return(TRUE);
2411 }
2412 else
2413 return(FALSE);
2414
2415 } // wxDbTable::SetColNull()
2416
2417
2418 /********** wxDbTable::SetColNull() **********/
2419 bool wxDbTable::SetColNull(const wxString &colName, bool set)
2420 {
2421 int i;
2422 for (i = 0; i < noCols; i++)
2423 {
2424 if (!wxStricmp(colName, colDefs[i].ColName))
2425 break;
2426 }
2427
2428 if (i < noCols)
2429 {
2430 colDefs[i].Null = set;
2431 if (set) // Blank out the values in the member variable
2432 ClearMemberVar(i,FALSE); // Must call with FALSE, or infinite recursion will happen
2433 return(TRUE);
2434 }
2435 else
2436 return(FALSE);
2437
2438 } // wxDbTable::SetColNull()
2439
2440
2441 /********** wxDbTable::GetNewCursor() **********/
2442 HSTMT *wxDbTable::GetNewCursor(bool setCursor, bool bindColumns)
2443 {
2444 HSTMT *newHSTMT = new HSTMT;
2445 wxASSERT(newHSTMT);
2446 if (!newHSTMT)
2447 return(0);
2448
2449 if (SQLAllocStmt(hdbc, newHSTMT) != SQL_SUCCESS)
2450 {
2451 pDb->DispAllErrors(henv, hdbc);
2452 delete newHSTMT;
2453 return(0);
2454 }
2455
2456 if (SQLSetStmtOption(*newHSTMT, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
2457 {
2458 pDb->DispAllErrors(henv, hdbc, *newHSTMT);
2459 delete newHSTMT;
2460 return(0);
2461 }
2462
2463 if (bindColumns)
2464 {
2465 if (!bindCols(*newHSTMT))
2466 {
2467 delete newHSTMT;
2468 return(0);
2469 }
2470 }
2471
2472 if (setCursor)
2473 SetCursor(newHSTMT);
2474
2475 return(newHSTMT);
2476
2477 } // wxDbTable::GetNewCursor()
2478
2479
2480 /********** wxDbTable::DeleteCursor() **********/
2481 bool wxDbTable::DeleteCursor(HSTMT *hstmtDel)
2482 {
2483 bool result = TRUE;
2484
2485 if (!hstmtDel) // Cursor already deleted
2486 return(result);
2487
2488 /*
2489 ODBC 3.0 says to use this form
2490 if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
2491
2492 */
2493 if (SQLFreeStmt(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
2494 {
2495 pDb->DispAllErrors(henv, hdbc);
2496 result = FALSE;
2497 }
2498
2499 delete hstmtDel;
2500
2501 return(result);
2502
2503 } // wxDbTable::DeleteCursor()
2504
2505 //////////////////////////////////////////////////////////////
2506 // wxDbGrid support functions
2507 //////////////////////////////////////////////////////////////
2508
2509 void wxDbTable::SetRowMode(const rowmode_t rowmode)
2510 {
2511 if (!m_hstmtGridQuery)
2512 {
2513 m_hstmtGridQuery = GetNewCursor(FALSE,FALSE);
2514 if (!bindCols(*m_hstmtGridQuery))
2515 return;
2516 }
2517
2518 m_rowmode = rowmode;
2519 switch (m_rowmode)
2520 {
2521 case WX_ROW_MODE_QUERY:
2522 SetCursor(m_hstmtGridQuery);
2523 break;
2524 case WX_ROW_MODE_INDIVIDUAL:
2525 SetCursor(hstmtDefault);
2526 break;
2527 default:
2528 assert(0);
2529 }
2530 } // wxDbTable::SetRowMode()
2531
2532
2533 wxVariant wxDbTable::GetCol(const int colNo) const
2534 {
2535 wxVariant val;
2536 if ((colNo < noCols) && (!IsColNull(colNo)))
2537 {
2538 switch (colDefs[colNo].SqlCtype)
2539 {
2540 case SQL_CHAR:
2541 case SQL_VARCHAR:
2542 val = (wxChar *)(colDefs[colNo].PtrDataObj);
2543 break;
2544 case SQL_C_LONG:
2545 case SQL_C_SLONG:
2546 val = *(long *)(colDefs[colNo].PtrDataObj);
2547 break;
2548 case SQL_C_SHORT:
2549 case SQL_C_SSHORT:
2550 val = (long int )(*(short *)(colDefs[colNo].PtrDataObj));
2551 break;
2552 case SQL_C_ULONG:
2553 val = (long)(*(unsigned long *)(colDefs[colNo].PtrDataObj));
2554 break;
2555 case SQL_C_TINYINT:
2556 val = (long)(*(char *)(colDefs[colNo].PtrDataObj));
2557 break;
2558 case SQL_C_UTINYINT:
2559 val = (long)(*(unsigned char *)(colDefs[colNo].PtrDataObj));
2560 break;
2561 case SQL_C_USHORT:
2562 val = (long)(*(UWORD *)(colDefs[colNo].PtrDataObj));
2563 break;
2564 case SQL_C_DATE:
2565 val = (DATE_STRUCT *)(colDefs[colNo].PtrDataObj);
2566 break;
2567 case SQL_C_TIME:
2568 val = (TIME_STRUCT *)(colDefs[colNo].PtrDataObj);
2569 break;
2570 case SQL_C_TIMESTAMP:
2571 val = (TIMESTAMP_STRUCT *)(colDefs[colNo].PtrDataObj);
2572 break;
2573 case SQL_C_DOUBLE:
2574 val = *(double *)(colDefs[colNo].PtrDataObj);
2575 break;
2576 default:
2577 assert(0);
2578 }
2579 }
2580 return val;
2581 } // wxDbTable::GetCol()
2582
2583
2584 void csstrncpyt(char *s, const char *t, int n)
2585 {
2586 while ((*s++ = *t++) && --n)
2587 {};
2588
2589 *s = '\0';
2590 }
2591
2592 void wxDbTable::SetCol(const int colNo, const wxVariant val)
2593 {
2594 //FIXME: Add proper wxDateTime support to wxVariant..
2595 wxDateTime dateval;
2596
2597 SetColNull(colNo, val.IsNull());
2598
2599 if (!val.IsNull())
2600 {
2601 if ((colDefs[colNo].SqlCtype == SQL_C_DATE)
2602 || (colDefs[colNo].SqlCtype == SQL_C_TIME)
2603 || (colDefs[colNo].SqlCtype == SQL_C_TIMESTAMP))
2604 {
2605 //Returns null if invalid!
2606 if (!dateval.ParseDate(val.GetString()))
2607 SetColNull(colNo, TRUE);
2608 }
2609
2610 switch (colDefs[colNo].SqlCtype)
2611 {
2612 case SQL_CHAR:
2613 case SQL_VARCHAR:
2614 csstrncpyt((char *)(colDefs[colNo].PtrDataObj),
2615 val.GetString().c_str(),
2616 colDefs[colNo].SzDataObj-1);
2617 break;
2618 case SQL_C_LONG:
2619 case SQL_C_SLONG:
2620 *(long *)(colDefs[colNo].PtrDataObj) = val;
2621 break;
2622 case SQL_C_SHORT:
2623 case SQL_C_SSHORT:
2624 *(short *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2625 break;
2626 case SQL_C_ULONG:
2627 *(unsigned long *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2628 break;
2629 case SQL_C_TINYINT:
2630 *(char *)(colDefs[colNo].PtrDataObj) = val.GetChar();
2631 break;
2632 case SQL_C_UTINYINT:
2633 *(unsigned char *)(colDefs[colNo].PtrDataObj) = val.GetChar();
2634 break;
2635 case SQL_C_USHORT:
2636 *(unsigned short *)(colDefs[colNo].PtrDataObj) = val.GetLong();
2637 break;
2638 //FIXME: Add proper wxDateTime support to wxVariant..
2639 case SQL_C_DATE:
2640 {
2641 DATE_STRUCT *dataptr =
2642 (DATE_STRUCT *)colDefs[colNo].PtrDataObj;
2643
2644 dataptr->year = dateval.GetYear();
2645 dataptr->month = dateval.GetMonth()+1;
2646 dataptr->day = dateval.GetDay();
2647 }
2648 break;
2649 case SQL_C_TIME:
2650 {
2651 TIME_STRUCT *dataptr =
2652 (TIME_STRUCT *)colDefs[colNo].PtrDataObj;
2653
2654 dataptr->hour = dateval.GetHour();
2655 dataptr->minute = dateval.GetMinute();
2656 dataptr->second = dateval.GetSecond();
2657 }
2658 break;
2659 case SQL_C_TIMESTAMP:
2660 {
2661 TIMESTAMP_STRUCT *dataptr =
2662 (TIMESTAMP_STRUCT *)colDefs[colNo].PtrDataObj;
2663 dataptr->year = dateval.GetYear();
2664 dataptr->month = dateval.GetMonth()+1;
2665 dataptr->day = dateval.GetDay();
2666
2667 dataptr->hour = dateval.GetHour();
2668 dataptr->minute = dateval.GetMinute();
2669 dataptr->second = dateval.GetSecond();
2670 }
2671 break;
2672 case SQL_C_DOUBLE:
2673 *(double *)(colDefs[colNo].PtrDataObj) = val;
2674 break;
2675 default:
2676 assert(0);
2677 } // switch
2678 } // if (!val.IsNull())
2679 } // wxDbTable::SetCol()
2680
2681
2682 GenericKey wxDbTable::GetKey()
2683 {
2684 void *blk;
2685 wxChar *blkptr;
2686
2687 blk = malloc(m_keysize);
2688 blkptr = (wxChar *) blk;
2689
2690 int i;
2691 for (i=0; i < noCols; i++)
2692 {
2693 if (colDefs[i].KeyField)
2694 {
2695 memcpy(blkptr,colDefs[i].PtrDataObj, colDefs[i].SzDataObj);
2696 blkptr += colDefs[i].SzDataObj;
2697 }
2698 }
2699
2700 GenericKey k = GenericKey(blk, m_keysize);
2701 free(blk);
2702
2703 return k;
2704 } // wxDbTable::GetKey()
2705
2706
2707 void wxDbTable::SetKey(const GenericKey& k)
2708 {
2709 void *blk;
2710 wxChar *blkptr;
2711
2712 blk = k.GetBlk();
2713 blkptr = (wxChar *)blk;
2714
2715 int i;
2716 for (i=0; i < noCols; i++)
2717 {
2718 if (colDefs[i].KeyField)
2719 {
2720 SetColNull(i, FALSE);
2721 memcpy(colDefs[i].PtrDataObj, blkptr, colDefs[i].SzDataObj);
2722 blkptr += colDefs[i].SzDataObj;
2723 }
2724 }
2725 } // wxDbTable::SetKey()
2726
2727
2728 #endif // wxUSE_ODBC
2729
wxWidgets (Impactor)