| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: odbc.cpp |
| 3 | // Purpose: ODBC implementation |
| 4 | // Author: Julian Smart, Olaf Klein (oklein@smallo.ruhr.de), |
| 5 | // Patrick Halke (patrick@zaphod.ruhr.de) |
| 6 | // Modified by: |
| 7 | // Created: 04/01/98 |
| 8 | // RCS-ID: $Id$ |
| 9 | // Copyright: (c) Julian Smart and Markus Holzem |
| 10 | // Licence: wxWindows license |
| 11 | ///////////////////////////////////////////////////////////////////////////// |
| 12 | |
| 13 | #ifdef __GNUG__ |
| 14 | #pragma implementation "odbc.h" |
| 15 | #endif |
| 16 | |
| 17 | // For compilers that support precompilation, includes "wx.h". |
| 18 | #include "wx/wxprec.h" |
| 19 | |
| 20 | #ifdef __BORLANDC__ |
| 21 | #pragma hdrstop |
| 22 | #endif |
| 23 | |
| 24 | #include "wx/defs.h" |
| 25 | |
| 26 | #if wxUSE_ODBC |
| 27 | |
| 28 | #ifdef __VISUALC__ |
| 29 | #pragma warning(disable:4706) // assignment within conditional expression |
| 30 | #endif // VC++ |
| 31 | |
| 32 | #ifndef WX_PRECOMP |
| 33 | #include "wx/utils.h" |
| 34 | #include "wx/dialog.h" |
| 35 | #endif |
| 36 | |
| 37 | #include "wx/string.h" |
| 38 | #include "wx/odbc.h" |
| 39 | |
| 40 | #include <math.h> |
| 41 | #include <stdlib.h> |
| 42 | |
| 43 | #if defined(__WXMSW__) && !defined(__WIN32__) |
| 44 | #include <print.h> |
| 45 | #endif |
| 46 | |
| 47 | HENV wxDatabase::hEnv = 0; |
| 48 | int wxDatabase::refCount = 0; |
| 49 | |
| 50 | #if !USE_SHARED_LIBRARY |
| 51 | IMPLEMENT_DYNAMIC_CLASS(wxDatabase, wxObject) |
| 52 | IMPLEMENT_DYNAMIC_CLASS(wxQueryCol, wxObject) |
| 53 | IMPLEMENT_DYNAMIC_CLASS(wxQueryField, wxObject) |
| 54 | IMPLEMENT_DYNAMIC_CLASS(wxRecordSet, wxObject) |
| 55 | #endif |
| 56 | |
| 57 | wxDatabase::wxDatabase(void) |
| 58 | { |
| 59 | hDBC = 0; |
| 60 | username = NULL; |
| 61 | password = NULL; |
| 62 | datasource = NULL; |
| 63 | dbname = NULL; |
| 64 | connectstring = NULL; |
| 65 | isOpen = FALSE; |
| 66 | refCount ++; |
| 67 | retcode = 0; |
| 68 | username = NULL; |
| 69 | password = NULL; |
| 70 | err_occured = FALSE; |
| 71 | |
| 72 | memset(sqlstate, 0, sizeof sqlstate); |
| 73 | memset(errmsg, 0, sizeof errmsg); |
| 74 | |
| 75 | if (hEnv == 0) |
| 76 | { |
| 77 | retcode = SQLAllocEnv(&hEnv); |
| 78 | |
| 79 | if (retcode != SQL_SUCCESS) |
| 80 | hEnv = 0; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | wxDatabase::~wxDatabase(void) |
| 85 | { |
| 86 | Close(); |
| 87 | DeleteRecordSets(); // Added JACS |
| 88 | |
| 89 | if (connectstring) |
| 90 | delete[] connectstring; |
| 91 | if (datasource) |
| 92 | delete[] datasource; |
| 93 | if (username) |
| 94 | delete[] username; |
| 95 | if (password) |
| 96 | delete[] password; |
| 97 | if (dbname) |
| 98 | delete[] dbname; |
| 99 | |
| 100 | refCount --; |
| 101 | if (!refCount && hEnv) |
| 102 | { |
| 103 | retcode = SQLFreeEnv(hEnv); |
| 104 | hEnv = 0; // JACS 17/6 |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | void wxDatabase::ErrorSnapshot(HSTMT hstmt) |
| 109 | { |
| 110 | SWORD len = 0; // JACS: sometimes doesn't get filled in by SQLError. |
| 111 | |
| 112 | err_occured = TRUE; |
| 113 | SQLError(hEnv, hDBC, hstmt, (unsigned char *)sqlstate, &nat_err, (unsigned char *)errmsg, SQL_MAX_MESSAGE_LENGTH-1, &len); |
| 114 | errmsg[len] = '\0'; |
| 115 | } |
| 116 | |
| 117 | bool wxDatabase::ErrorOccured(void) |
| 118 | { |
| 119 | return err_occured; |
| 120 | } |
| 121 | |
| 122 | char* wxDatabase::GetErrorMessage(void) |
| 123 | { |
| 124 | return errmsg; |
| 125 | } |
| 126 | |
| 127 | long wxDatabase::GetErrorNumber(void) |
| 128 | { |
| 129 | return nat_err; |
| 130 | } |
| 131 | |
| 132 | char* wxDatabase::GetErrorClass(void) { |
| 133 | return sqlstate; |
| 134 | } |
| 135 | |
| 136 | bool wxDatabase::Open(char *thedatasource, bool WXUNUSED(exclusive), |
| 137 | bool WXUNUSED(readOnly), char *username, char *password) |
| 138 | { |
| 139 | err_occured = FALSE; |
| 140 | |
| 141 | if (isOpen) |
| 142 | return FALSE; |
| 143 | |
| 144 | SetUsername(username); |
| 145 | SetPassword(password); |
| 146 | SetDataSource(thedatasource); |
| 147 | |
| 148 | if (!hEnv) |
| 149 | return FALSE; |
| 150 | |
| 151 | retcode = SQLAllocConnect(hEnv, &hDBC); |
| 152 | if (retcode != SQL_SUCCESS) { |
| 153 | hDBC = 0; |
| 154 | return FALSE; |
| 155 | } |
| 156 | |
| 157 | retcode = SQLConnect(hDBC, (UCHAR FAR*)thedatasource, strlen(thedatasource), (UCHAR FAR*)username, strlen(username), |
| 158 | (UCHAR FAR*)password, strlen(password)); |
| 159 | |
| 160 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) { |
| 161 | ErrorSnapshot(); |
| 162 | return FALSE; |
| 163 | } |
| 164 | |
| 165 | isOpen = TRUE; |
| 166 | |
| 167 | return TRUE; |
| 168 | } |
| 169 | |
| 170 | bool wxDatabase::Close(void) |
| 171 | { |
| 172 | // JACS: make sure the record set statements are all released. |
| 173 | ResetRecordSets(); |
| 174 | |
| 175 | err_occured = FALSE; |
| 176 | if (hDBC != 0) |
| 177 | { |
| 178 | retcode = SQLDisconnect(hDBC); |
| 179 | |
| 180 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) { |
| 181 | ErrorSnapshot(); |
| 182 | return FALSE; |
| 183 | } |
| 184 | |
| 185 | retcode = SQLFreeConnect(hDBC); |
| 186 | |
| 187 | hDBC = 0; |
| 188 | isOpen = FALSE; |
| 189 | |
| 190 | return TRUE; |
| 191 | } |
| 192 | |
| 193 | return FALSE; |
| 194 | } |
| 195 | |
| 196 | // Database attributes |
| 197 | char *wxDatabase::GetDatabaseName(void) |
| 198 | { |
| 199 | err_occured = FALSE; |
| 200 | if (hDBC == 0) |
| 201 | return NULL; |
| 202 | |
| 203 | char nameBuf[400]; |
| 204 | int nameSize = 0; |
| 205 | |
| 206 | retcode = SQLGetInfo(hDBC, SQL_DATABASE_NAME, (unsigned char*)nameBuf, sizeof(nameBuf), (short *)&nameSize); |
| 207 | |
| 208 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) |
| 209 | return NULL; |
| 210 | |
| 211 | delete[] dbname; |
| 212 | dbname = NULL; |
| 213 | |
| 214 | if (nameSize > 0) |
| 215 | { |
| 216 | dbname = copystring(nameBuf); |
| 217 | return dbname; |
| 218 | } |
| 219 | else |
| 220 | return NULL; |
| 221 | } |
| 222 | |
| 223 | bool wxDatabase::CanUpdate(void) |
| 224 | { |
| 225 | return FALSE; |
| 226 | } |
| 227 | |
| 228 | bool wxDatabase::CanTransact(void) |
| 229 | { |
| 230 | return FALSE; |
| 231 | } |
| 232 | |
| 233 | bool wxDatabase::InWaitForDataSource(void) |
| 234 | { |
| 235 | return FALSE; |
| 236 | } |
| 237 | |
| 238 | void wxDatabase::SetLoginTimeout(long WXUNUSED(seconds)) |
| 239 | { |
| 240 | } |
| 241 | |
| 242 | void wxDatabase::SetQueryTimeout(long WXUNUSED(seconds)) |
| 243 | { |
| 244 | } |
| 245 | |
| 246 | void wxDatabase::SetSynchronousMode(bool WXUNUSED(synchronous)) |
| 247 | { |
| 248 | } |
| 249 | |
| 250 | // Database operations |
| 251 | bool wxDatabase::BeginTrans(void) |
| 252 | { |
| 253 | return FALSE; |
| 254 | } |
| 255 | |
| 256 | bool wxDatabase::CommitTrans(void) |
| 257 | { |
| 258 | return FALSE; |
| 259 | } |
| 260 | |
| 261 | bool wxDatabase::RollbackTrans(void) |
| 262 | { |
| 263 | return FALSE; |
| 264 | } |
| 265 | |
| 266 | void wxDatabase::Cancel(void) |
| 267 | { |
| 268 | } |
| 269 | |
| 270 | // Overridables |
| 271 | void wxDatabase::OnSetOptions(wxRecordSet *WXUNUSED(recordSet)) |
| 272 | { |
| 273 | } |
| 274 | |
| 275 | void wxDatabase::OnWaitForDataSource(bool WXUNUSED(stillExecuting)) |
| 276 | { |
| 277 | } |
| 278 | |
| 279 | void wxDatabase::SetPassword(char *s) |
| 280 | { |
| 281 | if (password) |
| 282 | delete[] password; |
| 283 | if (s) |
| 284 | { |
| 285 | password = copystring(s); |
| 286 | } |
| 287 | else |
| 288 | password = NULL; |
| 289 | } |
| 290 | |
| 291 | void wxDatabase::SetUsername(char *s) |
| 292 | { |
| 293 | delete[] username; |
| 294 | |
| 295 | if (s) |
| 296 | username = copystring(s); |
| 297 | else |
| 298 | username = NULL; |
| 299 | } |
| 300 | |
| 301 | void wxDatabase::SetDataSource(char *s) |
| 302 | { |
| 303 | delete[] datasource; |
| 304 | |
| 305 | if (s) |
| 306 | datasource = copystring(s); |
| 307 | else |
| 308 | datasource = NULL; |
| 309 | } |
| 310 | |
| 311 | /* |
| 312 | * Added by JACS |
| 313 | */ |
| 314 | |
| 315 | void wxDatabase::DeleteRecordSets(void) |
| 316 | { |
| 317 | wxNode *node = recordSets.First(); |
| 318 | while (node) |
| 319 | { |
| 320 | wxNode *next = node->Next(); |
| 321 | wxRecordSet *rec = (wxRecordSet *)node->Data(); |
| 322 | delete rec; |
| 323 | // The node is implicitly deleted by ~wxRecordSet |
| 324 | node = next; |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | void wxDatabase::ResetRecordSets(void) |
| 329 | { |
| 330 | wxNode *node = recordSets.First(); |
| 331 | while (node) |
| 332 | { |
| 333 | wxRecordSet *rec = (wxRecordSet *)node->Data(); |
| 334 | rec->ReleaseHandle(); |
| 335 | |
| 336 | node = node->Next(); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | bool wxDatabase::GetInfo(long infoType, long *buf) |
| 341 | { |
| 342 | short sz = 0; |
| 343 | retcode = SQLGetInfo(hDBC, (UWORD)infoType, (unsigned char*)buf, sizeof(buf), &sz); |
| 344 | |
| 345 | if (retcode != SQL_ERROR) |
| 346 | return TRUE; |
| 347 | else |
| 348 | return FALSE; |
| 349 | } |
| 350 | |
| 351 | bool wxDatabase::GetInfo(long infoType, char *buf, int bufSize) |
| 352 | { |
| 353 | if (bufSize == -1) |
| 354 | bufSize = sizeof(buf); |
| 355 | |
| 356 | short sz = 0; |
| 357 | retcode = SQLGetInfo(hDBC, (UWORD)infoType, (unsigned char*)buf, bufSize, &sz); |
| 358 | |
| 359 | if (retcode != SQL_ERROR) |
| 360 | return TRUE; |
| 361 | else |
| 362 | return FALSE; |
| 363 | } |
| 364 | |
| 365 | wxString wxDatabase::GetODBCVersionString(bool implementation) |
| 366 | { |
| 367 | char buf[50]; |
| 368 | if (!implementation) |
| 369 | { |
| 370 | #ifdef SQL_SPEC_MAJOR |
| 371 | sprintf(buf, "%d%d.%d", (int)(SQL_SPEC_MAJOR/10), (int)(SQL_SPEC_MAJOR - (((int)(SQL_SPEC_MAJOR/10))*10)), |
| 372 | SQL_SPEC_MINOR); |
| 373 | return wxString(buf); |
| 374 | #else |
| 375 | return wxString("00.00"); |
| 376 | #endif |
| 377 | } |
| 378 | |
| 379 | bool noDBC = FALSE; |
| 380 | if (hDBC == 0) |
| 381 | { |
| 382 | noDBC = TRUE; |
| 383 | retcode = SQLAllocConnect(hEnv, &hDBC); |
| 384 | if (retcode != SQL_SUCCESS) |
| 385 | { |
| 386 | hDBC = 0; |
| 387 | return wxString("00.00"); |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | int bufSize = sizeof(buf); |
| 392 | |
| 393 | short sz = 0; |
| 394 | retcode = SQLGetInfo(hDBC, (UWORD)SQL_ODBC_VER, (unsigned char*)buf, bufSize, &sz); |
| 395 | |
| 396 | if (hDBC != 0 && noDBC) |
| 397 | { |
| 398 | retcode = SQLFreeConnect(hDBC); |
| 399 | hDBC = 0; |
| 400 | } |
| 401 | |
| 402 | if (retcode == SQL_ERROR) |
| 403 | return wxString(""); |
| 404 | else |
| 405 | return wxString(buf); |
| 406 | } |
| 407 | |
| 408 | float wxDatabase::GetODBCVersionFloat(bool implementation) |
| 409 | { |
| 410 | if (!implementation) |
| 411 | { |
| 412 | #ifdef SQL_SPEC_MAJOR |
| 413 | return (float)(SQL_SPEC_MAJOR + (SQL_SPEC_MINOR/100.0)); |
| 414 | #else |
| 415 | return 0.0; |
| 416 | #endif |
| 417 | } |
| 418 | |
| 419 | bool noDBC = FALSE; |
| 420 | if (hDBC == 0) |
| 421 | { |
| 422 | noDBC = TRUE; |
| 423 | retcode = SQLAllocConnect(hEnv, &hDBC); |
| 424 | if (retcode != SQL_SUCCESS) |
| 425 | { |
| 426 | hDBC = 0; |
| 427 | return (float)0.0; |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | char buf[50]; |
| 432 | int bufSize = sizeof(buf); |
| 433 | |
| 434 | short sz = 0; |
| 435 | retcode = SQLGetInfo(hDBC, (UWORD)SQL_ODBC_VER, (unsigned char*)buf, bufSize, &sz); |
| 436 | |
| 437 | if (hDBC != 0 && noDBC) |
| 438 | { |
| 439 | retcode = SQLFreeConnect(hDBC); |
| 440 | hDBC = 0; |
| 441 | } |
| 442 | |
| 443 | if (retcode == SQL_ERROR) |
| 444 | return 0.0; |
| 445 | else |
| 446 | return (float)atof(buf); |
| 447 | } |
| 448 | |
| 449 | /* |
| 450 | * wxRecordSet |
| 451 | */ |
| 452 | |
| 453 | wxRecordSet::wxRecordSet(wxDatabase *db, int typ, int opt): |
| 454 | cols(wxKEY_STRING) |
| 455 | { |
| 456 | parentdb = db; |
| 457 | hStmt = 0; |
| 458 | nFields = 0; |
| 459 | nParams = 0; |
| 460 | recordFilter = NULL; |
| 461 | sortString = NULL; |
| 462 | retcode = 0; |
| 463 | cursor = 0; |
| 464 | tablename = NULL; |
| 465 | nCols = 0; |
| 466 | nRecords = 0; |
| 467 | |
| 468 | type = typ; |
| 469 | options = opt; |
| 470 | |
| 471 | // Added JACS |
| 472 | if (parentdb) |
| 473 | parentdb->GetRecordSets().Append(this); |
| 474 | } |
| 475 | |
| 476 | wxRecordSet::~wxRecordSet(void) |
| 477 | { |
| 478 | ReleaseHandle(); |
| 479 | |
| 480 | // JACS |
| 481 | if (parentdb) |
| 482 | parentdb->GetRecordSets().DeleteObject(this); |
| 483 | |
| 484 | if (recordFilter) |
| 485 | delete[] recordFilter; |
| 486 | if (sortString) |
| 487 | delete[] sortString; |
| 488 | if (tablename) |
| 489 | delete[] tablename; |
| 490 | } |
| 491 | |
| 492 | // If SQL is non-NULL, table and columns can be NULL. |
| 493 | bool wxRecordSet::BeginQuery(int WXUNUSED(openType), char *WXUNUSED(sql), int WXUNUSED(options)) |
| 494 | { |
| 495 | // Needs to construct an appropriate SQL statement. By default |
| 496 | // (i.e. if table and columns are provided) then |
| 497 | // SELECT <columns> FROM <table> |
| 498 | // will be used. |
| 499 | if (!parentdb) |
| 500 | return FALSE; |
| 501 | if (!parentdb->GetHDBC()) |
| 502 | return FALSE; |
| 503 | |
| 504 | if (hStmt) |
| 505 | { |
| 506 | retcode = SQLFreeStmt(hStmt, SQL_DROP); |
| 507 | if (retcode == SQL_ERROR) |
| 508 | { |
| 509 | parentdb->ErrorSnapshot(hStmt); |
| 510 | return FALSE; |
| 511 | } |
| 512 | hStmt = 0; |
| 513 | } |
| 514 | |
| 515 | retcode = SQLAllocStmt(parentdb->GetHDBC(), &hStmt); |
| 516 | if (retcode != SQL_SUCCESS) |
| 517 | return FALSE; |
| 518 | |
| 519 | return TRUE; |
| 520 | } |
| 521 | |
| 522 | bool wxRecordSet::Query(char *columns, char *table, char *filter) |
| 523 | { |
| 524 | // Needs to construct an appropriate SQL statement. By default |
| 525 | // (i.e. if table and columns are provided) then |
| 526 | // SELECT <columns> FROM <table> |
| 527 | // will be used. |
| 528 | |
| 529 | char* thetable = table ? table : tablename; |
| 530 | |
| 531 | if (!thetable) |
| 532 | return FALSE; |
| 533 | if (!columns) |
| 534 | return FALSE; |
| 535 | |
| 536 | wxString query; |
| 537 | |
| 538 | query += "SELECT "; |
| 539 | query += columns; |
| 540 | query += " FROM "; |
| 541 | query += thetable; |
| 542 | |
| 543 | if (filter) { |
| 544 | query += " WHERE "; |
| 545 | query += filter; |
| 546 | } |
| 547 | retcode = SQLPrepare(hStmt, (UCHAR FAR *)query.GetData(), strlen(query.GetData())); |
| 548 | if (retcode != SQL_SUCCESS) { |
| 549 | parentdb->ErrorSnapshot(hStmt); |
| 550 | return FALSE; |
| 551 | } |
| 552 | |
| 553 | retcode = SQLExecute(hStmt); |
| 554 | |
| 555 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) { |
| 556 | parentdb->ErrorSnapshot(hStmt); |
| 557 | return FALSE; |
| 558 | } |
| 559 | |
| 560 | return TRUE; |
| 561 | } |
| 562 | |
| 563 | bool wxRecordSet::EndQuery(void) |
| 564 | { |
| 565 | return TRUE; |
| 566 | } |
| 567 | |
| 568 | void wxRecordSet::FillVars(int recnum) { |
| 569 | wxNode* node = cols.First(); |
| 570 | |
| 571 | do { |
| 572 | ((wxQueryCol*)node->Data())->FillVar(recnum); |
| 573 | } while ((node = node->Next())); |
| 574 | } |
| 575 | |
| 576 | bool wxRecordSet::GetResultSet(void) |
| 577 | { |
| 578 | // long trash = SQL_NULL_DATA; // value added by JACS |
| 579 | long trash; |
| 580 | // contains the number of bytes transferred by SQLFetch() |
| 581 | // who needs this ? |
| 582 | wxNode *currow, *fetch, *curcol; |
| 583 | |
| 584 | retcode = SQLNumResultCols(hStmt, &nCols); |
| 585 | |
| 586 | if (!nCols) |
| 587 | return TRUE; |
| 588 | |
| 589 | // delete old data first |
| 590 | cols.DeleteContents(TRUE); |
| 591 | cols.Clear(); |
| 592 | fetchbuf.DeleteContents(TRUE); |
| 593 | fetchbuf.Clear(); |
| 594 | |
| 595 | nRecords = 0; |
| 596 | cursor = 0; |
| 597 | |
| 598 | int i; |
| 599 | for (i=0; i<nCols; i++) { |
| 600 | char name[512]; |
| 601 | short type, scale, nullable, namelen; |
| 602 | unsigned long len; |
| 603 | |
| 604 | retcode = SQLDescribeCol(hStmt, i+1, (unsigned char *)name, 511, &namelen, &type, &len, &scale, &nullable); |
| 605 | if (SQL_SUCCESS != retcode && SQL_SUCCESS_WITH_INFO != retcode) { |
| 606 | parentdb->ErrorSnapshot(hStmt); |
| 607 | return FALSE; |
| 608 | } |
| 609 | |
| 610 | wxQueryCol *col1 = new wxQueryCol; |
| 611 | curcol = cols.Append(name, col1); |
| 612 | col1->SetName(name); |
| 613 | col1->SetType(type); |
| 614 | col1->SetNullable((nullable != 0)); |
| 615 | |
| 616 | wxQueryField *field1 = new wxQueryField; |
| 617 | fetch = fetchbuf.Append(field1); |
| 618 | field1->SetType(type); |
| 619 | field1->SetSize(len); |
| 620 | |
| 621 | SQLBindCol(hStmt, i+1, SQL_C_BINARY, (unsigned char*)field1->GetData(), field1->GetSize(), &trash); |
| 622 | } |
| 623 | |
| 624 | switch (type) { |
| 625 | case wxOPEN_TYPE_SNAPSHOT: |
| 626 | // get it all ! |
| 627 | // After we've done an SQLFetch, copy the data in the fetch buffer into |
| 628 | // new fields, for each column. |
| 629 | while (SQL_SUCCESS == (retcode = SQLFetch(hStmt)) || SQL_SUCCESS_WITH_INFO == retcode) { |
| 630 | nRecords++; |
| 631 | |
| 632 | curcol = cols.First(); |
| 633 | fetch = fetchbuf.First(); |
| 634 | for (i=0; i<nCols; i++) { |
| 635 | |
| 636 | wxQueryField *fetchField = (wxQueryField *)fetch->Data(); |
| 637 | wxQueryCol *col = (wxQueryCol *)curcol->Data(); |
| 638 | wxQueryField *field = new wxQueryField; |
| 639 | |
| 640 | currow = col->fields.Append(field); |
| 641 | |
| 642 | field->SetType(fetchField->GetType()); |
| 643 | field->SetData(fetchField->GetData(), fetchField->GetSize()); |
| 644 | curcol = curcol->Next(); |
| 645 | fetchField->ClearData(); // Runs ok if this commented out and SetData commented out |
| 646 | fetch = fetch->Next(); |
| 647 | } |
| 648 | } |
| 649 | // while loop should only be left, when no more data was found; |
| 650 | // otherwise it seems, that there was an error |
| 651 | if (SQL_NO_DATA_FOUND != retcode) { |
| 652 | parentdb->ErrorSnapshot(hStmt); |
| 653 | return FALSE; |
| 654 | } |
| 655 | break; |
| 656 | case wxOPEN_TYPE_DYNASET: |
| 657 | // get first record only |
| 658 | if (SQL_SUCCESS == (retcode = SQLFetch(hStmt)) || retcode == SQL_SUCCESS_WITH_INFO) { |
| 659 | nRecords = 1; // TO DO! # of records in the ODBC result set should be set here. |
| 660 | |
| 661 | curcol = cols.First(); |
| 662 | fetch = fetchbuf.First(); |
| 663 | for (i=0; i<nCols; i++) { |
| 664 | currow = ((wxQueryCol*)curcol->Data())->fields.Append(new wxQueryField); |
| 665 | |
| 666 | ((wxQueryField*)currow->Data())->SetType(((wxQueryField*)fetch->Data())->GetType()); |
| 667 | ((wxQueryField*)currow->Data())->SetData(((wxQueryField*)fetch->Data())->GetData(), ((wxQueryField*)fetch->Data())->GetSize()); |
| 668 | curcol = curcol->Next(); |
| 669 | ((wxQueryField*)fetch->Data())->ClearData(); |
| 670 | fetch = fetch->Next(); |
| 671 | } |
| 672 | } |
| 673 | if (SQL_NO_DATA_FOUND != retcode) { |
| 674 | parentdb->ErrorSnapshot(hStmt); |
| 675 | return FALSE; |
| 676 | } |
| 677 | break; |
| 678 | default: |
| 679 | return FALSE; |
| 680 | } |
| 681 | |
| 682 | FillVars(0); |
| 683 | |
| 684 | return TRUE; |
| 685 | } |
| 686 | |
| 687 | bool wxRecordSet::ExecuteSQL(char *sql) |
| 688 | { |
| 689 | if (hStmt) |
| 690 | { |
| 691 | retcode = SQLFreeStmt(hStmt, SQL_DROP); |
| 692 | if (retcode == SQL_ERROR) |
| 693 | { |
| 694 | parentdb->ErrorSnapshot(hStmt); |
| 695 | return FALSE; |
| 696 | } |
| 697 | hStmt = NULL; |
| 698 | } |
| 699 | |
| 700 | retcode = SQLAllocStmt(parentdb->GetHDBC(), &hStmt); |
| 701 | |
| 702 | if (SQL_SUCCESS != retcode) { |
| 703 | parentdb->ErrorSnapshot(hStmt); |
| 704 | return FALSE; |
| 705 | } |
| 706 | |
| 707 | retcode = SQLExecDirect(hStmt, (UCHAR FAR*)sql, SQL_NTS); |
| 708 | |
| 709 | if (SQL_SUCCESS != retcode && SQL_SUCCESS_WITH_INFO != retcode) { |
| 710 | parentdb->ErrorSnapshot(hStmt); |
| 711 | return FALSE; |
| 712 | } |
| 713 | |
| 714 | return GetResultSet(); |
| 715 | } |
| 716 | |
| 717 | bool wxRecordSet::GetDataSources(void) { |
| 718 | |
| 719 | char *dsname = "Name", *dsdesc = "Description"; |
| 720 | char namebuf[64]; |
| 721 | char descbuf[512]; |
| 722 | short namelen, desclen; |
| 723 | |
| 724 | cursor = 0; |
| 725 | |
| 726 | // delete old data first |
| 727 | cols.DeleteContents(TRUE); |
| 728 | cols.Clear(); |
| 729 | nRecords = 0; |
| 730 | |
| 731 | // JACS This is a snapshot, not a dynaset. |
| 732 | type = wxOPEN_TYPE_SNAPSHOT; |
| 733 | |
| 734 | wxNode *namecol, *desccol; |
| 735 | |
| 736 | namecol = cols.Append(dsname, new wxQueryCol); |
| 737 | ((wxQueryCol*)namecol->Data())->SetName(dsname); |
| 738 | ((wxQueryCol*)namecol->Data())->SetType(SQL_CHAR); |
| 739 | desccol = cols.Append(dsdesc, new wxQueryCol); |
| 740 | ((wxQueryCol*)desccol->Data())->SetName(dsdesc); |
| 741 | ((wxQueryCol*)desccol->Data())->SetType(SQL_CHAR); |
| 742 | |
| 743 | retcode = SQLDataSources(parentdb->GetHENV(), SQL_FETCH_FIRST, (unsigned char *)namebuf, 63, &namelen, (unsigned char *)descbuf, 511, &desclen); |
| 744 | while (SQL_SUCCESS == retcode || SQL_SUCCESS_WITH_INFO == retcode) { |
| 745 | nRecords++; |
| 746 | ((wxQueryCol*)namecol->Data())->AppendField(namebuf, namelen); |
| 747 | ((wxQueryCol*)desccol->Data())->AppendField(descbuf, desclen); |
| 748 | retcode = SQLDataSources(parentdb->GetHENV(), SQL_FETCH_NEXT, (unsigned char *)namebuf, 63, &namelen, (unsigned char *)descbuf, 511, &desclen); |
| 749 | } |
| 750 | |
| 751 | if (SQL_SUCCESS != retcode && SQL_SUCCESS_WITH_INFO != retcode && SQL_NO_DATA_FOUND != retcode) { |
| 752 | parentdb->ErrorSnapshot(); |
| 753 | return FALSE; |
| 754 | } |
| 755 | |
| 756 | cursor = 0; |
| 757 | |
| 758 | return TRUE; |
| 759 | } |
| 760 | |
| 761 | // Attributes |
| 762 | void wxRecordSet::SetTableName(char* name) { |
| 763 | delete[] tablename; |
| 764 | tablename = NULL; |
| 765 | |
| 766 | if (name) |
| 767 | tablename = copystring(name); |
| 768 | } |
| 769 | |
| 770 | bool wxRecordSet::GetTables(void) |
| 771 | { |
| 772 | if (hStmt) |
| 773 | { |
| 774 | retcode = SQLFreeStmt(hStmt, SQL_DROP); |
| 775 | if (retcode == SQL_ERROR) |
| 776 | { |
| 777 | parentdb->ErrorSnapshot(hStmt); |
| 778 | return FALSE; |
| 779 | } |
| 780 | |
| 781 | hStmt = NULL; |
| 782 | } |
| 783 | |
| 784 | retcode = SQLAllocStmt(parentdb->GetHDBC(), &hStmt); |
| 785 | |
| 786 | if (SQL_SUCCESS != retcode) { |
| 787 | parentdb->ErrorSnapshot(); |
| 788 | return FALSE; |
| 789 | } |
| 790 | |
| 791 | retcode = SQLTables(hStmt, NULL, 0, NULL, 0, NULL, 0, NULL, 0); |
| 792 | |
| 793 | if (SQL_SUCCESS != retcode && SQL_SUCCESS_WITH_INFO != retcode) { |
| 794 | parentdb->ErrorSnapshot(hStmt); |
| 795 | return FALSE; |
| 796 | } |
| 797 | |
| 798 | return GetResultSet(); |
| 799 | } |
| 800 | |
| 801 | bool wxRecordSet::GetColumns(char* table) |
| 802 | { |
| 803 | char* name=NULL; |
| 804 | // char* wildcard = "%"; |
| 805 | |
| 806 | name = table ? table : tablename; |
| 807 | |
| 808 | if (!name) |
| 809 | return FALSE; |
| 810 | |
| 811 | if (hStmt) |
| 812 | { |
| 813 | retcode = SQLFreeStmt(hStmt, SQL_DROP); |
| 814 | if (retcode == SQL_ERROR) |
| 815 | { |
| 816 | parentdb->ErrorSnapshot(hStmt); |
| 817 | return FALSE; |
| 818 | } |
| 819 | hStmt = NULL; |
| 820 | } |
| 821 | |
| 822 | retcode = SQLAllocStmt(parentdb->GetHDBC(), &hStmt); |
| 823 | |
| 824 | if (SQL_SUCCESS != retcode) { |
| 825 | parentdb->ErrorSnapshot(); |
| 826 | return FALSE; |
| 827 | } |
| 828 | |
| 829 | //retcode = SQLColumns(hstmt, (unsigned char*)parentdb->GetDataSource(), strlen(parentdb->GetDataSource()), wildcard, 1, name, strlen(name), wildcard, 1); |
| 830 | retcode = SQLColumns(hStmt, NULL, 0, NULL, 0, (unsigned char *)name, strlen(name), NULL, 0); |
| 831 | |
| 832 | if (SQL_SUCCESS != retcode && SQL_SUCCESS_WITH_INFO != retcode) { |
| 833 | parentdb->ErrorSnapshot(hStmt); |
| 834 | return FALSE; |
| 835 | } |
| 836 | |
| 837 | return GetResultSet(); |
| 838 | } |
| 839 | |
| 840 | // It is derived from previous GetColumns |
| 841 | bool wxRecordSet::GetPrimaryKeys(char* table) |
| 842 | { |
| 843 | char* name=NULL; |
| 844 | // char* wildcard = "%"; |
| 845 | |
| 846 | name = table ? table : tablename; |
| 847 | |
| 848 | if (!name) |
| 849 | return FALSE; |
| 850 | |
| 851 | if (hStmt) |
| 852 | { |
| 853 | retcode = SQLFreeStmt(hStmt, SQL_DROP); |
| 854 | if (retcode == SQL_ERROR) |
| 855 | { |
| 856 | parentdb->ErrorSnapshot(hStmt); |
| 857 | return FALSE; |
| 858 | } |
| 859 | hStmt = NULL; |
| 860 | } |
| 861 | |
| 862 | retcode = SQLAllocStmt(parentdb->GetHDBC(), &hStmt); |
| 863 | |
| 864 | if (SQL_SUCCESS != retcode) { |
| 865 | parentdb->ErrorSnapshot(); |
| 866 | return FALSE; |
| 867 | } |
| 868 | |
| 869 | retcode = SQLPrimaryKeys(hStmt, NULL, 0, NULL, 0, (unsigned char *)name, SQL_NTS); |
| 870 | |
| 871 | if (SQL_SUCCESS != retcode && SQL_SUCCESS_WITH_INFO != retcode) { |
| 872 | parentdb->ErrorSnapshot(hStmt); |
| 873 | return FALSE; |
| 874 | } |
| 875 | |
| 876 | return GetResultSet(); |
| 877 | } |
| 878 | |
| 879 | bool wxRecordSet::GetForeignKeys(char* PkTableName, char * FkTableName) |
| 880 | { |
| 881 | char* Pkname=NULL; |
| 882 | char* Fkname=NULL; |
| 883 | // char* wildcard = "%"; |
| 884 | |
| 885 | // Try to disable situation: both PkTableName and FkTableName are NULL |
| 886 | // set Pkname from tablename |
| 887 | if( !PkTableName && !FkTableName ) { |
| 888 | Pkname = PkTableName ? PkTableName : tablename; |
| 889 | Fkname = FkTableName ; |
| 890 | if (!Pkname ) |
| 891 | return FALSE; |
| 892 | } else { |
| 893 | Pkname = PkTableName ; |
| 894 | Fkname = FkTableName ; |
| 895 | } |
| 896 | |
| 897 | if (hStmt) |
| 898 | { |
| 899 | retcode = SQLFreeStmt(hStmt, SQL_DROP); |
| 900 | if (retcode == SQL_ERROR) |
| 901 | { |
| 902 | parentdb->ErrorSnapshot(hStmt); |
| 903 | return FALSE; |
| 904 | } |
| 905 | hStmt = NULL; |
| 906 | } |
| 907 | |
| 908 | retcode = SQLAllocStmt(parentdb->GetHDBC(), &hStmt); |
| 909 | |
| 910 | if (SQL_SUCCESS != retcode) { |
| 911 | parentdb->ErrorSnapshot(); |
| 912 | return FALSE; |
| 913 | } |
| 914 | |
| 915 | retcode = SQLForeignKeys(hStmt, NULL, 0, NULL, 0, (unsigned char *)Pkname, |
| 916 | (Pkname ? SQL_NTS : 0), NULL, 0, NULL, 0, (unsigned char *)Fkname ,(Fkname ?SQL_NTS : 0) ); |
| 917 | |
| 918 | if (SQL_SUCCESS != retcode && SQL_SUCCESS_WITH_INFO != retcode) { |
| 919 | parentdb->ErrorSnapshot(hStmt); |
| 920 | return FALSE; |
| 921 | } |
| 922 | |
| 923 | return GetResultSet(); |
| 924 | } |
| 925 | |
| 926 | long wxRecordSet::GetNumberRecords(void) |
| 927 | { |
| 928 | return nRecords; |
| 929 | } |
| 930 | |
| 931 | long wxRecordSet::GetNumberCols(void) |
| 932 | { |
| 933 | return nCols; |
| 934 | } |
| 935 | |
| 936 | char* wxRecordSet::GetColName(int col) |
| 937 | { |
| 938 | wxNode* node = cols.Nth(col); |
| 939 | |
| 940 | if (!node) |
| 941 | return NULL; |
| 942 | |
| 943 | return ((wxQueryCol*)node->Data())->GetName(); |
| 944 | } |
| 945 | |
| 946 | short wxRecordSet::GetColType(int col) |
| 947 | { |
| 948 | wxNode* node = cols.Nth(col); |
| 949 | |
| 950 | if (!node) |
| 951 | return SQL_TYPE_NULL; |
| 952 | |
| 953 | return ((wxQueryCol*)node->Data())->GetType(); |
| 954 | } |
| 955 | |
| 956 | short wxRecordSet::GetColType(const char *col) |
| 957 | { |
| 958 | wxNode* node = cols.Find(col); |
| 959 | |
| 960 | if (!node) |
| 961 | return SQL_TYPE_NULL; |
| 962 | |
| 963 | return ((wxQueryCol*)node->Data())->GetType(); |
| 964 | } |
| 965 | |
| 966 | bool wxRecordSet::GetFieldData(int col, int type, void* data) |
| 967 | { |
| 968 | wxNode* node = cols.Nth(col); |
| 969 | |
| 970 | if (!node) |
| 971 | return FALSE; |
| 972 | |
| 973 | if (((wxQueryCol*)node->Data())->GetType() != type) |
| 974 | return FALSE; |
| 975 | |
| 976 | void* src = ((wxQueryCol*)node->Data())->GetData(cursor); |
| 977 | |
| 978 | if (!src) |
| 979 | return FALSE; |
| 980 | |
| 981 | memcpy(data, src, ((wxQueryCol*)node->Data())->GetSize(cursor)); |
| 982 | |
| 983 | return TRUE; |
| 984 | } |
| 985 | |
| 986 | bool wxRecordSet::GetFieldData(const char* name, int type, void *data) |
| 987 | { |
| 988 | wxNode* node = cols.Find(name); |
| 989 | |
| 990 | if (!node) |
| 991 | return FALSE; |
| 992 | |
| 993 | if (((wxQueryCol*)node->Data())->GetType() != type) |
| 994 | return FALSE; |
| 995 | |
| 996 | void* src = ((wxQueryCol*)node->Data())->GetData(cursor); |
| 997 | |
| 998 | if (!src) |
| 999 | return FALSE; |
| 1000 | |
| 1001 | memcpy(data, src, ((wxQueryCol*)node->Data())->GetSize(cursor)); |
| 1002 | |
| 1003 | return TRUE; |
| 1004 | } |
| 1005 | |
| 1006 | void* wxRecordSet::GetFieldDataPtr(int col, int type) |
| 1007 | { |
| 1008 | wxNode* node = cols.Nth(col); |
| 1009 | |
| 1010 | if (!node) |
| 1011 | return NULL; |
| 1012 | |
| 1013 | if (((wxQueryCol*)node->Data())->GetType() != type) |
| 1014 | return NULL; |
| 1015 | |
| 1016 | return ((wxQueryCol*)node->Data())->GetData(cursor); |
| 1017 | } |
| 1018 | |
| 1019 | void* wxRecordSet::GetFieldDataPtr(const char* name, int type) |
| 1020 | { |
| 1021 | wxNode* node = cols.Find(name); |
| 1022 | |
| 1023 | if (!node) |
| 1024 | return NULL; |
| 1025 | |
| 1026 | if (((wxQueryCol*)node->Data())->GetType() != type) |
| 1027 | return NULL; |
| 1028 | |
| 1029 | return ((wxQueryCol*)node->Data())->GetData(cursor); |
| 1030 | } |
| 1031 | |
| 1032 | void* wxRecordSet::BindVar(int col, void* var, long size) { |
| 1033 | wxNode* node = cols.Nth(col); |
| 1034 | |
| 1035 | if (!node) |
| 1036 | return NULL; |
| 1037 | |
| 1038 | return ((wxQueryCol*)node->Data())->BindVar(var, size); |
| 1039 | } |
| 1040 | |
| 1041 | void* wxRecordSet::BindVar(const char* name, void* var, long size) { |
| 1042 | wxNode* node = cols.Find(name); |
| 1043 | |
| 1044 | if (!node) |
| 1045 | return NULL; |
| 1046 | |
| 1047 | return ((wxQueryCol*)node->Data())->BindVar(var, size); |
| 1048 | } |
| 1049 | |
| 1050 | void wxRecordSet::SetType(int typ) { |
| 1051 | type = typ; |
| 1052 | } |
| 1053 | |
| 1054 | int wxRecordSet::GetType(void) { |
| 1055 | return type; |
| 1056 | } |
| 1057 | |
| 1058 | void wxRecordSet::SetOptions(int opts) { |
| 1059 | options = opts; |
| 1060 | } |
| 1061 | |
| 1062 | int wxRecordSet::GetOptions(void) { |
| 1063 | return options; |
| 1064 | } |
| 1065 | |
| 1066 | bool wxRecordSet::CanAppend(void) |
| 1067 | { |
| 1068 | return FALSE; |
| 1069 | } |
| 1070 | |
| 1071 | bool wxRecordSet::CanRestart(void) |
| 1072 | { |
| 1073 | return FALSE; |
| 1074 | } |
| 1075 | |
| 1076 | bool wxRecordSet::CanScroll(void) |
| 1077 | { |
| 1078 | return FALSE; |
| 1079 | } |
| 1080 | |
| 1081 | bool wxRecordSet::CanTransact(void) |
| 1082 | { |
| 1083 | return FALSE; |
| 1084 | } |
| 1085 | |
| 1086 | bool wxRecordSet::CanUpdate(void) |
| 1087 | { |
| 1088 | return FALSE; |
| 1089 | } |
| 1090 | |
| 1091 | long wxRecordSet::GetCurrentRecord(void) |
| 1092 | { |
| 1093 | return -1L; |
| 1094 | } |
| 1095 | |
| 1096 | bool wxRecordSet::RecordCountFinal(void) |
| 1097 | { |
| 1098 | return FALSE; |
| 1099 | } |
| 1100 | |
| 1101 | char* wxRecordSet::GetTableName(void) |
| 1102 | { |
| 1103 | return tablename; |
| 1104 | } |
| 1105 | |
| 1106 | char *wxRecordSet::GetSQL(void) |
| 1107 | { |
| 1108 | return NULL; |
| 1109 | } |
| 1110 | |
| 1111 | bool wxRecordSet::IsOpen(void) |
| 1112 | { |
| 1113 | return parentdb->IsOpen(); |
| 1114 | } |
| 1115 | |
| 1116 | bool wxRecordSet::IsBOF(void) |
| 1117 | { |
| 1118 | return cursor < 0; |
| 1119 | } |
| 1120 | |
| 1121 | bool wxRecordSet::IsEOF(void) |
| 1122 | { |
| 1123 | return cursor >= nRecords; |
| 1124 | } |
| 1125 | |
| 1126 | bool wxRecordSet::IsDeleted(void) |
| 1127 | { |
| 1128 | return FALSE; |
| 1129 | } |
| 1130 | |
| 1131 | // Update operations |
| 1132 | void wxRecordSet::AddNew(void) |
| 1133 | { |
| 1134 | } |
| 1135 | |
| 1136 | bool wxRecordSet::Delete(void) |
| 1137 | { |
| 1138 | return FALSE; |
| 1139 | } |
| 1140 | |
| 1141 | void wxRecordSet::Edit(void) |
| 1142 | { |
| 1143 | } |
| 1144 | |
| 1145 | bool wxRecordSet::Update(void) |
| 1146 | { |
| 1147 | return FALSE; |
| 1148 | } |
| 1149 | |
| 1150 | // Record navigation |
| 1151 | bool wxRecordSet::Move(long rows) |
| 1152 | { |
| 1153 | if (!nRecords) { |
| 1154 | cursor = -1; |
| 1155 | return FALSE; |
| 1156 | } |
| 1157 | |
| 1158 | switch (type) { |
| 1159 | case wxOPEN_TYPE_SNAPSHOT: |
| 1160 | cursor += (int)rows; |
| 1161 | if (cursor < 0) { |
| 1162 | cursor = -1; |
| 1163 | return FALSE; |
| 1164 | } |
| 1165 | if (cursor > nRecords-1) { |
| 1166 | cursor = nRecords; |
| 1167 | return FALSE; |
| 1168 | } |
| 1169 | return TRUE; |
| 1170 | |
| 1171 | case wxOPEN_TYPE_DYNASET: |
| 1172 | return FALSE; |
| 1173 | default: |
| 1174 | return FALSE; |
| 1175 | } |
| 1176 | } |
| 1177 | |
| 1178 | bool wxRecordSet::GoTo(long row) |
| 1179 | { |
| 1180 | if (!nRecords) { |
| 1181 | cursor = -1; |
| 1182 | return FALSE; |
| 1183 | } |
| 1184 | |
| 1185 | switch (type) { |
| 1186 | case wxOPEN_TYPE_SNAPSHOT: |
| 1187 | cursor = (int)row; |
| 1188 | if (cursor < 0) { |
| 1189 | cursor = -1; |
| 1190 | return FALSE; |
| 1191 | } |
| 1192 | if (cursor > nRecords-1) { |
| 1193 | cursor = nRecords; |
| 1194 | return FALSE; |
| 1195 | } |
| 1196 | return TRUE; |
| 1197 | |
| 1198 | case wxOPEN_TYPE_DYNASET: |
| 1199 | return FALSE; |
| 1200 | default: |
| 1201 | return FALSE; |
| 1202 | } |
| 1203 | } |
| 1204 | |
| 1205 | bool wxRecordSet::MoveFirst(void) |
| 1206 | { |
| 1207 | if (!nRecords) { |
| 1208 | cursor = -1; |
| 1209 | return FALSE; |
| 1210 | } |
| 1211 | |
| 1212 | switch (type) { |
| 1213 | case wxOPEN_TYPE_SNAPSHOT: |
| 1214 | cursor = 0; |
| 1215 | return TRUE; |
| 1216 | |
| 1217 | case wxOPEN_TYPE_DYNASET: |
| 1218 | return FALSE; |
| 1219 | default: |
| 1220 | return FALSE; |
| 1221 | } |
| 1222 | } |
| 1223 | |
| 1224 | bool wxRecordSet::MoveLast(void) |
| 1225 | { |
| 1226 | if (!nRecords) { |
| 1227 | cursor = -1; |
| 1228 | return FALSE; |
| 1229 | } |
| 1230 | |
| 1231 | switch (type) { |
| 1232 | case wxOPEN_TYPE_SNAPSHOT: |
| 1233 | cursor = nRecords-1; |
| 1234 | return TRUE; |
| 1235 | |
| 1236 | case wxOPEN_TYPE_DYNASET: |
| 1237 | return FALSE; |
| 1238 | default: |
| 1239 | return FALSE; |
| 1240 | } |
| 1241 | } |
| 1242 | |
| 1243 | bool wxRecordSet::MoveNext(void) |
| 1244 | { |
| 1245 | if (!nRecords) { |
| 1246 | cursor = -1; |
| 1247 | return FALSE; |
| 1248 | } |
| 1249 | |
| 1250 | switch (type) { |
| 1251 | case wxOPEN_TYPE_SNAPSHOT: |
| 1252 | cursor++; |
| 1253 | if (cursor >= nRecords) { |
| 1254 | cursor = nRecords; |
| 1255 | return FALSE; |
| 1256 | } |
| 1257 | return TRUE; |
| 1258 | |
| 1259 | case wxOPEN_TYPE_DYNASET: |
| 1260 | return FALSE; |
| 1261 | default: |
| 1262 | return FALSE; |
| 1263 | } |
| 1264 | } |
| 1265 | |
| 1266 | bool wxRecordSet::MovePrev(void) |
| 1267 | { |
| 1268 | if (!nRecords) { |
| 1269 | cursor = -1; |
| 1270 | return FALSE; |
| 1271 | } |
| 1272 | |
| 1273 | switch (type) { |
| 1274 | case wxOPEN_TYPE_SNAPSHOT: |
| 1275 | cursor--; |
| 1276 | if (cursor < 0) { |
| 1277 | cursor = 0; |
| 1278 | return FALSE; |
| 1279 | } |
| 1280 | return TRUE; |
| 1281 | |
| 1282 | case wxOPEN_TYPE_DYNASET: |
| 1283 | return FALSE; |
| 1284 | default: |
| 1285 | return FALSE; |
| 1286 | } |
| 1287 | } |
| 1288 | |
| 1289 | // Others |
| 1290 | void wxRecordSet::Cancel(void) |
| 1291 | { |
| 1292 | } |
| 1293 | |
| 1294 | bool wxRecordSet::IsFieldDirty(int col) |
| 1295 | { |
| 1296 | wxNode* node = cols.Nth(col); |
| 1297 | |
| 1298 | if (!node) |
| 1299 | return FALSE; |
| 1300 | |
| 1301 | return ((wxQueryCol*)node->Data())->IsFieldDirty(cursor); |
| 1302 | } |
| 1303 | |
| 1304 | bool wxRecordSet::IsFieldDirty(const char* name) |
| 1305 | { |
| 1306 | wxNode* node = cols.Find(name); |
| 1307 | |
| 1308 | if (!node) |
| 1309 | return FALSE; |
| 1310 | |
| 1311 | return ((wxQueryCol*)node->Data())->IsFieldDirty(cursor); |
| 1312 | } |
| 1313 | |
| 1314 | bool wxRecordSet::IsFieldNull(int col) |
| 1315 | { |
| 1316 | wxNode* node = cols.Nth(col); |
| 1317 | |
| 1318 | if (!node) |
| 1319 | return TRUE; |
| 1320 | |
| 1321 | return NULL != ((wxQueryCol*)node->Data())->GetData(cursor); |
| 1322 | } |
| 1323 | |
| 1324 | bool wxRecordSet::IsFieldNull(const char* name) |
| 1325 | { |
| 1326 | wxNode* node = cols.Find(name); |
| 1327 | |
| 1328 | if (!node) |
| 1329 | return TRUE; |
| 1330 | |
| 1331 | return NULL != ((wxQueryCol*)node->Data())->GetData(cursor); |
| 1332 | } |
| 1333 | |
| 1334 | bool wxRecordSet::IsColNullable(int col) |
| 1335 | { |
| 1336 | wxNode* node = cols.Nth(col); |
| 1337 | |
| 1338 | if (!node) |
| 1339 | return FALSE; |
| 1340 | |
| 1341 | return ((wxQueryCol*)node->Data())->IsNullable(); |
| 1342 | } |
| 1343 | |
| 1344 | bool wxRecordSet::IsColNullable(const char* name) |
| 1345 | { |
| 1346 | wxNode* node = cols.Find(name); |
| 1347 | |
| 1348 | if (!node) |
| 1349 | return FALSE; |
| 1350 | |
| 1351 | return ((wxQueryCol*)node->Data())->IsNullable(); |
| 1352 | } |
| 1353 | |
| 1354 | bool wxRecordSet::Requery(void) |
| 1355 | { |
| 1356 | return FALSE; |
| 1357 | } |
| 1358 | |
| 1359 | void wxRecordSet::SetFieldDirty(int col, bool dirty) |
| 1360 | { |
| 1361 | wxNode* node = cols.Nth(col); |
| 1362 | |
| 1363 | if (!node) |
| 1364 | return; |
| 1365 | |
| 1366 | ((wxQueryCol*)node->Data())->SetFieldDirty(cursor, dirty); |
| 1367 | } |
| 1368 | |
| 1369 | void wxRecordSet::SetFieldDirty(const char* name, bool dirty) |
| 1370 | { |
| 1371 | wxNode* node = cols.Find(name); |
| 1372 | |
| 1373 | if (!node) |
| 1374 | return; |
| 1375 | |
| 1376 | ((wxQueryCol*)node->Data())->SetFieldDirty(cursor, dirty); |
| 1377 | } |
| 1378 | |
| 1379 | void wxRecordSet::SetFieldNull(void *WXUNUSED(p), bool WXUNUSED(isNull)) |
| 1380 | { |
| 1381 | } |
| 1382 | |
| 1383 | // Overridables |
| 1384 | char *wxRecordSet::GetDefaultConnect(void) |
| 1385 | { |
| 1386 | return NULL; |
| 1387 | } |
| 1388 | |
| 1389 | char *wxRecordSet::GetDefaultSQL(void) |
| 1390 | { |
| 1391 | return NULL; |
| 1392 | } |
| 1393 | |
| 1394 | void wxRecordSet::SetDefaultSQL(char *s) |
| 1395 | { |
| 1396 | delete[] defaultSQL; |
| 1397 | |
| 1398 | if (s) |
| 1399 | defaultSQL = copystring(s); |
| 1400 | else |
| 1401 | defaultSQL = NULL; |
| 1402 | } |
| 1403 | |
| 1404 | // Build SQL query from column specification |
| 1405 | bool wxRecordSet::ConstructDefaultSQL(void) |
| 1406 | { |
| 1407 | // if (queryCols.Number() == 0) |
| 1408 | return FALSE; |
| 1409 | } |
| 1410 | |
| 1411 | bool wxRecordSet::ReleaseHandle(void) |
| 1412 | { |
| 1413 | if (hStmt) |
| 1414 | { |
| 1415 | retcode = SQLFreeStmt(hStmt, SQL_DROP); |
| 1416 | if (retcode == SQL_ERROR) |
| 1417 | { |
| 1418 | if (parentdb) |
| 1419 | parentdb->ErrorSnapshot(hStmt); |
| 1420 | return FALSE; |
| 1421 | } |
| 1422 | hStmt = 0; |
| 1423 | } |
| 1424 | return TRUE; |
| 1425 | } |
| 1426 | |
| 1427 | wxQueryCol::wxQueryCol(void) { |
| 1428 | // __type = wxTYPE_QUERYCOL; |
| 1429 | name = NULL; |
| 1430 | type = SQL_TYPE_NULL; |
| 1431 | nullable = FALSE; |
| 1432 | var = NULL; |
| 1433 | varsize = 0; |
| 1434 | } |
| 1435 | |
| 1436 | wxQueryCol::~wxQueryCol(void) { |
| 1437 | // delete all data |
| 1438 | fields.DeleteContents(TRUE); |
| 1439 | fields.Clear(); |
| 1440 | |
| 1441 | if (name) |
| 1442 | delete[] name; |
| 1443 | } |
| 1444 | |
| 1445 | void wxQueryCol::SetName(char* n) { |
| 1446 | name = new char[strlen(n)+1]; |
| 1447 | strcpy(name, n); |
| 1448 | } |
| 1449 | |
| 1450 | bool wxQueryCol::SetData(int row, void* buf, long len) { |
| 1451 | wxNode* node = fields.Nth(row); |
| 1452 | |
| 1453 | if (!node) |
| 1454 | return FALSE; |
| 1455 | |
| 1456 | return ((wxQueryField*)node->Data())->SetData(buf, len); |
| 1457 | } |
| 1458 | |
| 1459 | void wxQueryCol::SetFieldDirty(int row, bool dirty) { |
| 1460 | wxNode* node = fields.Nth(row); |
| 1461 | |
| 1462 | if (!node) |
| 1463 | return; |
| 1464 | |
| 1465 | ((wxQueryField*)node->Data())->SetDirty(dirty); |
| 1466 | } |
| 1467 | |
| 1468 | void wxQueryCol::AppendField(void* buf, long len) { |
| 1469 | wxNode* node = fields.Append(new wxQueryField); |
| 1470 | ((wxQueryField*)node->Data())->SetType(type); |
| 1471 | ((wxQueryField*)node->Data())->SetData(buf, len); |
| 1472 | } |
| 1473 | |
| 1474 | void wxQueryCol::SetType(short t) { |
| 1475 | type = t; |
| 1476 | } |
| 1477 | |
| 1478 | void* wxQueryCol::BindVar(void* v, long s) { |
| 1479 | void* oldvar = var; |
| 1480 | |
| 1481 | var = v; |
| 1482 | varsize = s; |
| 1483 | |
| 1484 | return oldvar; |
| 1485 | } |
| 1486 | |
| 1487 | void wxQueryCol::FillVar(int recnum) { |
| 1488 | if (!var) |
| 1489 | return; |
| 1490 | |
| 1491 | wxNode* node = fields.Nth(recnum); |
| 1492 | |
| 1493 | if (!node) |
| 1494 | return; |
| 1495 | |
| 1496 | long actsize = ((wxQueryField*)node->Data())->GetSize(); |
| 1497 | if (actsize > varsize) |
| 1498 | actsize = varsize; |
| 1499 | |
| 1500 | memcpy(var, ((wxQueryField*)node->Data())->GetData(), actsize); |
| 1501 | } |
| 1502 | |
| 1503 | void wxQueryCol::SetNullable(bool n) { |
| 1504 | nullable = n; |
| 1505 | } |
| 1506 | |
| 1507 | char* wxQueryCol::GetName(void) { |
| 1508 | return name; |
| 1509 | } |
| 1510 | |
| 1511 | short wxQueryCol::GetType(void) { |
| 1512 | return type; |
| 1513 | } |
| 1514 | |
| 1515 | bool wxQueryCol::IsNullable(void) { |
| 1516 | return nullable; |
| 1517 | } |
| 1518 | |
| 1519 | |
| 1520 | bool wxQueryCol::IsFieldDirty(int row) { |
| 1521 | wxNode* node = fields.Nth(row); |
| 1522 | |
| 1523 | if (!node) |
| 1524 | return FALSE; |
| 1525 | |
| 1526 | return ((wxQueryField*)node->Data())->IsDirty(); |
| 1527 | } |
| 1528 | |
| 1529 | void* wxQueryCol::GetData(int row) { |
| 1530 | wxNode* node = fields.Nth(row); |
| 1531 | |
| 1532 | if (!node) |
| 1533 | return NULL; |
| 1534 | |
| 1535 | return ((wxQueryField*)node->Data())->GetData(); |
| 1536 | } |
| 1537 | |
| 1538 | long wxQueryCol::GetSize(int row) { |
| 1539 | wxNode* node = fields.Nth(row); |
| 1540 | |
| 1541 | if (!node) |
| 1542 | return 0; |
| 1543 | |
| 1544 | return ((wxQueryField*)node->Data())->GetSize(); |
| 1545 | } |
| 1546 | |
| 1547 | wxQueryField::wxQueryField(void) { |
| 1548 | // __type = wxTYPE_QUERYROW; |
| 1549 | data = NULL; |
| 1550 | type = SQL_TYPE_NULL; |
| 1551 | size = 0; |
| 1552 | dirty = FALSE; |
| 1553 | } |
| 1554 | |
| 1555 | wxQueryField::~wxQueryField(void) { |
| 1556 | switch (type) |
| 1557 | { |
| 1558 | case SQL_NUMERIC: |
| 1559 | case SQL_DECIMAL: |
| 1560 | case SQL_CHAR: |
| 1561 | case SQL_VARCHAR: |
| 1562 | if (data) // JACS |
| 1563 | delete[] (char*)data; |
| 1564 | break; |
| 1565 | case SQL_INTEGER: |
| 1566 | if (data) // JACS |
| 1567 | delete (long*)data; |
| 1568 | break; |
| 1569 | case SQL_SMALLINT: |
| 1570 | if (data) |
| 1571 | delete (short*)data; |
| 1572 | break; |
| 1573 | case SQL_FLOAT: |
| 1574 | case SQL_DOUBLE: |
| 1575 | if (data) |
| 1576 | delete (double*)data; |
| 1577 | break; |
| 1578 | case SQL_REAL: |
| 1579 | if (data) |
| 1580 | delete (float*)data; |
| 1581 | break; |
| 1582 | case SQL_TIME: |
| 1583 | if (data) |
| 1584 | delete (TIME_STRUCT *)data; |
| 1585 | break; |
| 1586 | case SQL_DATE: |
| 1587 | if (data) |
| 1588 | delete (DATE_STRUCT *)data; |
| 1589 | break; |
| 1590 | case SQL_TIMESTAMP: |
| 1591 | if (data) |
| 1592 | delete (TIMESTAMP_STRUCT *)data; |
| 1593 | break; |
| 1594 | } |
| 1595 | } |
| 1596 | |
| 1597 | bool wxQueryField::AllocData(void) { |
| 1598 | switch (type) |
| 1599 | { |
| 1600 | case SQL_NUMERIC: |
| 1601 | case SQL_DECIMAL: |
| 1602 | case SQL_CHAR: |
| 1603 | case SQL_VARCHAR: |
| 1604 | { |
| 1605 | if (data) // JACS |
| 1606 | delete[] (char*)data; |
| 1607 | if ((data = new char[size+1])) |
| 1608 | { |
| 1609 | char *str = (char *)data; |
| 1610 | int i; |
| 1611 | for (i = 0; i < size; i++) |
| 1612 | str[i] = 0; |
| 1613 | // memset(data, 0, size+1); |
| 1614 | } |
| 1615 | break; |
| 1616 | } |
| 1617 | case SQL_INTEGER: |
| 1618 | { |
| 1619 | if (data) // JACS |
| 1620 | delete (long*)data; |
| 1621 | if ((data = new long)) |
| 1622 | *(long*)data = 0L; |
| 1623 | break; |
| 1624 | } |
| 1625 | case SQL_SMALLINT: |
| 1626 | { |
| 1627 | if (data) |
| 1628 | delete (short*)data; |
| 1629 | if ((data = new short)) |
| 1630 | *(short*)data = 0; |
| 1631 | break; |
| 1632 | } |
| 1633 | case SQL_FLOAT: |
| 1634 | case SQL_DOUBLE: |
| 1635 | { |
| 1636 | if (data) |
| 1637 | delete (double*)data; |
| 1638 | if ((data = new double)) |
| 1639 | *(double*)data = 0; |
| 1640 | break; |
| 1641 | } |
| 1642 | case SQL_REAL: |
| 1643 | { |
| 1644 | if (data) |
| 1645 | delete (float*)data; |
| 1646 | if ((data = new float)) |
| 1647 | *(float*)data = (float)0; |
| 1648 | break; |
| 1649 | } |
| 1650 | case SQL_TIME: |
| 1651 | { |
| 1652 | if (data) |
| 1653 | delete (TIME_STRUCT *)data; |
| 1654 | data = new TIME_STRUCT; |
| 1655 | memset(data, 0, sizeof(TIME_STRUCT)); |
| 1656 | break; |
| 1657 | } |
| 1658 | case SQL_DATE: |
| 1659 | { |
| 1660 | if (data) |
| 1661 | delete (DATE_STRUCT *)data; |
| 1662 | data = new DATE_STRUCT; |
| 1663 | memset(data, 0, sizeof(DATE_STRUCT)); |
| 1664 | break; |
| 1665 | } |
| 1666 | case SQL_TIMESTAMP: |
| 1667 | { |
| 1668 | if (data) |
| 1669 | delete (TIMESTAMP_STRUCT *)data; |
| 1670 | data = new TIMESTAMP_STRUCT; |
| 1671 | memset(data, 0, sizeof(TIMESTAMP_STRUCT)); |
| 1672 | break; |
| 1673 | } |
| 1674 | default: |
| 1675 | return FALSE; |
| 1676 | } |
| 1677 | |
| 1678 | return TRUE; |
| 1679 | } |
| 1680 | |
| 1681 | bool wxQueryField::SetData(void* d, long s) { |
| 1682 | size = s; |
| 1683 | if (AllocData() && d) |
| 1684 | { |
| 1685 | // memcpy(data, d, s); |
| 1686 | switch (type) |
| 1687 | { |
| 1688 | case SQL_NUMERIC: |
| 1689 | case SQL_DECIMAL: |
| 1690 | case SQL_CHAR: |
| 1691 | case SQL_VARCHAR: |
| 1692 | { |
| 1693 | char *str = (char *)data; |
| 1694 | int i; |
| 1695 | for (i = 0; i < size; i++) |
| 1696 | str[i] = 0; |
| 1697 | |
| 1698 | strncpy(str, (char *)d, (int)size); |
| 1699 | str[size] = 0; |
| 1700 | break; |
| 1701 | } |
| 1702 | case SQL_INTEGER: |
| 1703 | { |
| 1704 | *(long*)data = *((long *)d); |
| 1705 | break; |
| 1706 | } |
| 1707 | case SQL_SMALLINT: |
| 1708 | { |
| 1709 | *(short*)data = *((short*)d); |
| 1710 | break; |
| 1711 | } |
| 1712 | case SQL_FLOAT: |
| 1713 | case SQL_DOUBLE: |
| 1714 | { |
| 1715 | *(double*)data = *((double*)d); |
| 1716 | break; |
| 1717 | } |
| 1718 | case SQL_REAL: |
| 1719 | { |
| 1720 | *(float*)data = *((float*)d); |
| 1721 | break; |
| 1722 | } |
| 1723 | case SQL_TIME: |
| 1724 | { |
| 1725 | *(TIME_STRUCT *)data = *((TIME_STRUCT*)d); |
| 1726 | break; |
| 1727 | } |
| 1728 | case SQL_TIMESTAMP: |
| 1729 | { |
| 1730 | *(TIMESTAMP_STRUCT *)data = *((TIMESTAMP_STRUCT*)d); |
| 1731 | break; |
| 1732 | } |
| 1733 | case SQL_DATE: |
| 1734 | { |
| 1735 | *(DATE_STRUCT *)data = *((DATE_STRUCT*)d); |
| 1736 | break; |
| 1737 | } |
| 1738 | default: |
| 1739 | return FALSE; |
| 1740 | } |
| 1741 | return TRUE; |
| 1742 | } |
| 1743 | return FALSE; |
| 1744 | } |
| 1745 | |
| 1746 | void wxQueryField::ClearData(void) { |
| 1747 | if (data) |
| 1748 | { |
| 1749 | // memset(data, 0, size); |
| 1750 | switch (type) |
| 1751 | { |
| 1752 | case SQL_NUMERIC: |
| 1753 | case SQL_DECIMAL: |
| 1754 | case SQL_CHAR: |
| 1755 | case SQL_VARCHAR: |
| 1756 | { |
| 1757 | char *str = (char *)data; |
| 1758 | int i; |
| 1759 | for (i = 0; i < size; i++) |
| 1760 | str[i] = 0; |
| 1761 | break; |
| 1762 | } |
| 1763 | case SQL_INTEGER: |
| 1764 | { |
| 1765 | *(long*)data = 0L; |
| 1766 | break; |
| 1767 | } |
| 1768 | case SQL_SMALLINT: |
| 1769 | { |
| 1770 | *(short*)data = 0; |
| 1771 | break; |
| 1772 | } |
| 1773 | case SQL_FLOAT: |
| 1774 | case SQL_DOUBLE: |
| 1775 | { |
| 1776 | *(double*)data = (double)0.0; |
| 1777 | break; |
| 1778 | } |
| 1779 | case SQL_REAL: |
| 1780 | { |
| 1781 | *(float*)data = (float)0.0; |
| 1782 | break; |
| 1783 | } |
| 1784 | case SQL_TIME: |
| 1785 | { |
| 1786 | memset(data, 0, sizeof(TIME_STRUCT)); |
| 1787 | break; |
| 1788 | } |
| 1789 | case SQL_DATE: |
| 1790 | { |
| 1791 | memset(data, 0, sizeof(DATE_STRUCT)); |
| 1792 | break; |
| 1793 | } |
| 1794 | case SQL_TIMESTAMP: |
| 1795 | { |
| 1796 | memset(data, 0, sizeof(TIMESTAMP_STRUCT)); |
| 1797 | break; |
| 1798 | } |
| 1799 | default: |
| 1800 | return; |
| 1801 | } |
| 1802 | } |
| 1803 | } |
| 1804 | |
| 1805 | void wxQueryField::SetDirty(bool d) { |
| 1806 | dirty = d; |
| 1807 | } |
| 1808 | |
| 1809 | void wxQueryField::SetType(short t) { |
| 1810 | type = t; |
| 1811 | } |
| 1812 | |
| 1813 | void wxQueryField::SetSize(long s) { |
| 1814 | size = s; |
| 1815 | AllocData(); |
| 1816 | } |
| 1817 | |
| 1818 | void* wxQueryField::GetData(void) { |
| 1819 | return data; |
| 1820 | } |
| 1821 | |
| 1822 | short wxQueryField::GetType(void) { |
| 1823 | return type; |
| 1824 | } |
| 1825 | |
| 1826 | long wxQueryField::GetSize(void) { |
| 1827 | return size; |
| 1828 | } |
| 1829 | |
| 1830 | bool wxQueryField::IsDirty(void) { |
| 1831 | return dirty; |
| 1832 | } |
| 1833 | |
| 1834 | #ifdef __VISUALC__ |
| 1835 | #pragma warning(default:4706) // assignment within conditional expression |
| 1836 | #endif // VC++ |
| 1837 | |
| 1838 | #endif // wxUSE_ODBC |