| 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 |
| 12 | /////////////////////////////////////////////////////////////////////////////// |
| 13 | |
| 14 | /* |
| 15 | // SYNOPSIS START |
| 16 | // SYNOPSIS STOP |
| 17 | */ |
| 18 | |
| 19 | #include "wx/wxprec.h" |
| 20 | |
| 21 | #ifdef __BORLANDC__ |
| 22 | #pragma hdrstop |
| 23 | #endif |
| 24 | |
| 25 | #ifdef DBDEBUG_CONSOLE |
| 26 | #if wxUSE_IOSTREAMH |
| 27 | #include <iostream.h> |
| 28 | #else |
| 29 | #include <iostream> |
| 30 | #endif |
| 31 | #include "wx/ioswrap.h" |
| 32 | #endif |
| 33 | |
| 34 | #ifndef WX_PRECOMP |
| 35 | #include "wx/string.h" |
| 36 | #include "wx/object.h" |
| 37 | #include "wx/list.h" |
| 38 | #include "wx/utils.h" |
| 39 | #include "wx/log.h" |
| 40 | #endif |
| 41 | #include "wx/filefn.h" |
| 42 | |
| 43 | #if wxUSE_ODBC |
| 44 | |
| 45 | #include <stdio.h> |
| 46 | #include <stdlib.h> |
| 47 | #include <string.h> |
| 48 | |
| 49 | #include "wx/dbtable.h" |
| 50 | |
| 51 | #ifdef __UNIX__ |
| 52 | // The HPUX preprocessor lines below were commented out on 8/20/97 |
| 53 | // because macros.h currently redefines DEBUG and is unneeded. |
| 54 | // # ifdef HPUX |
| 55 | // # include <macros.h> |
| 56 | // # endif |
| 57 | # ifdef LINUX |
| 58 | # include <sys/minmax.h> |
| 59 | # endif |
| 60 | #endif |
| 61 | |
| 62 | ULONG lastTableID = 0; |
| 63 | |
| 64 | |
| 65 | #ifdef __WXDEBUG__ |
| 66 | wxList TablesInUse; |
| 67 | #endif |
| 68 | |
| 69 | |
| 70 | void csstrncpyt(wxChar *target, const wxChar *source, int n) |
| 71 | { |
| 72 | while ( (*target++ = *source++) != '\0' && --n ) |
| 73 | ; |
| 74 | |
| 75 | *target = '\0'; |
| 76 | } |
| 77 | |
| 78 | |
| 79 | |
| 80 | /********** wxDbColDef::wxDbColDef() Constructor **********/ |
| 81 | wxDbColDef::wxDbColDef() |
| 82 | { |
| 83 | Initialize(); |
| 84 | } // Constructor |
| 85 | |
| 86 | |
| 87 | bool wxDbColDef::Initialize() |
| 88 | { |
| 89 | ColName[0] = 0; |
| 90 | DbDataType = DB_DATA_TYPE_INTEGER; |
| 91 | SqlCtype = SQL_C_LONG; |
| 92 | PtrDataObj = NULL; |
| 93 | SzDataObj = 0; |
| 94 | KeyField = false; |
| 95 | Updateable = false; |
| 96 | InsertAllowed = false; |
| 97 | DerivedCol = false; |
| 98 | CbValue = 0; |
| 99 | Null = false; |
| 100 | |
| 101 | return true; |
| 102 | } // wxDbColDef::Initialize() |
| 103 | |
| 104 | |
| 105 | /********** wxDbTable::wxDbTable() Constructor **********/ |
| 106 | wxDbTable::wxDbTable(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns, |
| 107 | const wxString &qryTblName, bool qryOnly, const wxString &tblPath) |
| 108 | { |
| 109 | if (!initialize(pwxDb, tblName, numColumns, qryTblName, qryOnly, tblPath)) |
| 110 | cleanup(); |
| 111 | } // wxDbTable::wxDbTable() |
| 112 | |
| 113 | |
| 114 | /***** DEPRECATED: use wxDbTable::wxDbTable() format above *****/ |
| 115 | #if WXWIN_COMPATIBILITY_2_4 |
| 116 | wxDbTable::wxDbTable(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns, |
| 117 | const wxChar *qryTblName, bool qryOnly, const wxString &tblPath) |
| 118 | { |
| 119 | wxString tempQryTblName; |
| 120 | tempQryTblName = qryTblName; |
| 121 | if (!initialize(pwxDb, tblName, numColumns, tempQryTblName, qryOnly, tblPath)) |
| 122 | cleanup(); |
| 123 | } // wxDbTable::wxDbTable() |
| 124 | #endif // WXWIN_COMPATIBILITY_2_4 |
| 125 | |
| 126 | |
| 127 | /********** wxDbTable::~wxDbTable() **********/ |
| 128 | wxDbTable::~wxDbTable() |
| 129 | { |
| 130 | this->cleanup(); |
| 131 | } // wxDbTable::~wxDbTable() |
| 132 | |
| 133 | |
| 134 | bool wxDbTable::initialize(wxDb *pwxDb, const wxString &tblName, const UWORD numColumns, |
| 135 | const wxString &qryTblName, bool qryOnly, const wxString &tblPath) |
| 136 | { |
| 137 | // Initializing member variables |
| 138 | pDb = pwxDb; // Pointer to the wxDb object |
| 139 | henv = 0; |
| 140 | hdbc = 0; |
| 141 | hstmt = 0; |
| 142 | m_hstmtGridQuery = 0; |
| 143 | hstmtDefault = 0; // Initialized below |
| 144 | hstmtCount = 0; // Initialized first time it is needed |
| 145 | hstmtInsert = 0; |
| 146 | hstmtDelete = 0; |
| 147 | hstmtUpdate = 0; |
| 148 | hstmtInternal = 0; |
| 149 | colDefs = 0; |
| 150 | tableID = 0; |
| 151 | m_numCols = numColumns; // Number of columns in the table |
| 152 | where.Empty(); // Where clause |
| 153 | orderBy.Empty(); // Order By clause |
| 154 | from.Empty(); // From clause |
| 155 | selectForUpdate = false; // SELECT ... FOR UPDATE; Indicates whether to include the FOR UPDATE phrase |
| 156 | queryOnly = qryOnly; |
| 157 | insertable = true; |
| 158 | tablePath.Empty(); |
| 159 | tableName.Empty(); |
| 160 | queryTableName.Empty(); |
| 161 | |
| 162 | wxASSERT(tblName.Length()); |
| 163 | wxASSERT(pDb); |
| 164 | |
| 165 | if (!pDb) |
| 166 | return false; |
| 167 | |
| 168 | tableName = tblName; // Table Name |
| 169 | if ((pDb->Dbms() == dbmsORACLE) || |
| 170 | (pDb->Dbms() == dbmsFIREBIRD) || |
| 171 | (pDb->Dbms() == dbmsINTERBASE)) |
| 172 | tableName = tableName.Upper(); |
| 173 | |
| 174 | if (tblPath.Length()) |
| 175 | tablePath = tblPath; // Table Path - used for dBase files |
| 176 | else |
| 177 | tablePath.Empty(); |
| 178 | |
| 179 | if (qryTblName.Length()) // Name of the table/view to query |
| 180 | queryTableName = qryTblName; |
| 181 | else |
| 182 | queryTableName = tblName; |
| 183 | |
| 184 | if ((pDb->Dbms() == dbmsORACLE) || |
| 185 | (pDb->Dbms() == dbmsFIREBIRD) || |
| 186 | (pDb->Dbms() == dbmsINTERBASE)) |
| 187 | queryTableName = queryTableName.Upper(); |
| 188 | |
| 189 | pDb->incrementTableCount(); |
| 190 | |
| 191 | wxString s; |
| 192 | tableID = ++lastTableID; |
| 193 | s.Printf(wxT("wxDbTable constructor (%-20s) tableID:[%6lu] pDb:[%p]"), tblName.c_str(), tableID, pDb); |
| 194 | |
| 195 | #ifdef __WXDEBUG__ |
| 196 | wxTablesInUse *tableInUse; |
| 197 | tableInUse = new wxTablesInUse(); |
| 198 | tableInUse->tableName = tblName; |
| 199 | tableInUse->tableID = tableID; |
| 200 | tableInUse->pDb = pDb; |
| 201 | TablesInUse.Append(tableInUse); |
| 202 | #endif |
| 203 | |
| 204 | pDb->WriteSqlLog(s); |
| 205 | |
| 206 | // Grab the HENV and HDBC from the wxDb object |
| 207 | henv = pDb->GetHENV(); |
| 208 | hdbc = pDb->GetHDBC(); |
| 209 | |
| 210 | // Allocate space for column definitions |
| 211 | if (m_numCols) |
| 212 | colDefs = new wxDbColDef[m_numCols]; // Points to the first column definition |
| 213 | |
| 214 | // Allocate statement handles for the table |
| 215 | if (!queryOnly) |
| 216 | { |
| 217 | // Allocate a separate statement handle for performing inserts |
| 218 | if (SQLAllocStmt(hdbc, &hstmtInsert) != SQL_SUCCESS) |
| 219 | pDb->DispAllErrors(henv, hdbc); |
| 220 | // Allocate a separate statement handle for performing deletes |
| 221 | if (SQLAllocStmt(hdbc, &hstmtDelete) != SQL_SUCCESS) |
| 222 | pDb->DispAllErrors(henv, hdbc); |
| 223 | // Allocate a separate statement handle for performing updates |
| 224 | if (SQLAllocStmt(hdbc, &hstmtUpdate) != SQL_SUCCESS) |
| 225 | pDb->DispAllErrors(henv, hdbc); |
| 226 | } |
| 227 | // Allocate a separate statement handle for internal use |
| 228 | if (SQLAllocStmt(hdbc, &hstmtInternal) != SQL_SUCCESS) |
| 229 | pDb->DispAllErrors(henv, hdbc); |
| 230 | |
| 231 | // Set the cursor type for the statement handles |
| 232 | cursorType = SQL_CURSOR_STATIC; |
| 233 | |
| 234 | if (SQLSetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS) |
| 235 | { |
| 236 | // Check to see if cursor type is supported |
| 237 | pDb->GetNextError(henv, hdbc, hstmtInternal); |
| 238 | if (! wxStrcmp(pDb->sqlState, wxT("01S02"))) // Option Value Changed |
| 239 | { |
| 240 | // Datasource does not support static cursors. Driver |
| 241 | // will substitute a cursor type. Call SQLGetStmtOption() |
| 242 | // to determine which cursor type was selected. |
| 243 | if (SQLGetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, &cursorType) != SQL_SUCCESS) |
| 244 | pDb->DispAllErrors(henv, hdbc, hstmtInternal); |
| 245 | #ifdef DBDEBUG_CONSOLE |
| 246 | cout << wxT("Static cursor changed to: "); |
| 247 | switch(cursorType) |
| 248 | { |
| 249 | case SQL_CURSOR_FORWARD_ONLY: |
| 250 | cout << wxT("Forward Only"); |
| 251 | break; |
| 252 | case SQL_CURSOR_STATIC: |
| 253 | cout << wxT("Static"); |
| 254 | break; |
| 255 | case SQL_CURSOR_KEYSET_DRIVEN: |
| 256 | cout << wxT("Keyset Driven"); |
| 257 | break; |
| 258 | case SQL_CURSOR_DYNAMIC: |
| 259 | cout << wxT("Dynamic"); |
| 260 | break; |
| 261 | } |
| 262 | cout << endl << endl; |
| 263 | #endif |
| 264 | // BJO20000425 |
| 265 | if (pDb->FwdOnlyCursors() && cursorType != SQL_CURSOR_FORWARD_ONLY) |
| 266 | { |
| 267 | // Force the use of a forward only cursor... |
| 268 | cursorType = SQL_CURSOR_FORWARD_ONLY; |
| 269 | if (SQLSetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS) |
| 270 | { |
| 271 | // Should never happen |
| 272 | pDb->GetNextError(henv, hdbc, hstmtInternal); |
| 273 | return false; |
| 274 | } |
| 275 | } |
| 276 | } |
| 277 | else |
| 278 | { |
| 279 | pDb->DispNextError(); |
| 280 | pDb->DispAllErrors(henv, hdbc, hstmtInternal); |
| 281 | } |
| 282 | } |
| 283 | #ifdef DBDEBUG_CONSOLE |
| 284 | else |
| 285 | cout << wxT("Cursor Type set to STATIC") << endl << endl; |
| 286 | #endif |
| 287 | |
| 288 | if (!queryOnly) |
| 289 | { |
| 290 | // Set the cursor type for the INSERT statement handle |
| 291 | if (SQLSetStmtOption(hstmtInsert, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS) |
| 292 | pDb->DispAllErrors(henv, hdbc, hstmtInsert); |
| 293 | // Set the cursor type for the DELETE statement handle |
| 294 | if (SQLSetStmtOption(hstmtDelete, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS) |
| 295 | pDb->DispAllErrors(henv, hdbc, hstmtDelete); |
| 296 | // Set the cursor type for the UPDATE statement handle |
| 297 | if (SQLSetStmtOption(hstmtUpdate, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS) |
| 298 | pDb->DispAllErrors(henv, hdbc, hstmtUpdate); |
| 299 | } |
| 300 | |
| 301 | // Make the default cursor the active cursor |
| 302 | hstmtDefault = GetNewCursor(false,false); |
| 303 | wxASSERT(hstmtDefault); |
| 304 | hstmt = *hstmtDefault; |
| 305 | |
| 306 | return true; |
| 307 | |
| 308 | } // wxDbTable::initialize() |
| 309 | |
| 310 | |
| 311 | void wxDbTable::cleanup() |
| 312 | { |
| 313 | wxString s; |
| 314 | if (pDb) |
| 315 | { |
| 316 | s.Printf(wxT("wxDbTable destructor (%-20s) tableID:[%6lu] pDb:[%p]"), tableName.c_str(), tableID, pDb); |
| 317 | pDb->WriteSqlLog(s); |
| 318 | } |
| 319 | |
| 320 | #ifdef __WXDEBUG__ |
| 321 | if (tableID) |
| 322 | { |
| 323 | bool found = false; |
| 324 | |
| 325 | wxList::compatibility_iterator pNode; |
| 326 | pNode = TablesInUse.GetFirst(); |
| 327 | while (pNode && !found) |
| 328 | { |
| 329 | if (((wxTablesInUse *)pNode->GetData())->tableID == tableID) |
| 330 | { |
| 331 | found = true; |
| 332 | delete (wxTablesInUse *)pNode->GetData(); |
| 333 | TablesInUse.Erase(pNode); |
| 334 | } |
| 335 | else |
| 336 | pNode = pNode->GetNext(); |
| 337 | } |
| 338 | if (!found) |
| 339 | { |
| 340 | wxString msg; |
| 341 | msg.Printf(wxT("Unable to find the tableID in the linked\nlist of tables in use.\n\n%s"),s.c_str()); |
| 342 | wxLogDebug (msg,wxT("NOTICE...")); |
| 343 | } |
| 344 | } |
| 345 | #endif |
| 346 | |
| 347 | // Decrement the wxDb table count |
| 348 | if (pDb) |
| 349 | pDb->decrementTableCount(); |
| 350 | |
| 351 | // Delete memory allocated for column definitions |
| 352 | if (colDefs) |
| 353 | delete [] colDefs; |
| 354 | |
| 355 | // Free statement handles |
| 356 | if (!queryOnly) |
| 357 | { |
| 358 | if (hstmtInsert) |
| 359 | { |
| 360 | /* |
| 361 | ODBC 3.0 says to use this form |
| 362 | if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS) |
| 363 | */ |
| 364 | if (SQLFreeStmt(hstmtInsert, SQL_DROP) != SQL_SUCCESS) |
| 365 | pDb->DispAllErrors(henv, hdbc); |
| 366 | } |
| 367 | |
| 368 | if (hstmtDelete) |
| 369 | { |
| 370 | /* |
| 371 | ODBC 3.0 says to use this form |
| 372 | if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS) |
| 373 | */ |
| 374 | if (SQLFreeStmt(hstmtDelete, SQL_DROP) != SQL_SUCCESS) |
| 375 | pDb->DispAllErrors(henv, hdbc); |
| 376 | } |
| 377 | |
| 378 | if (hstmtUpdate) |
| 379 | { |
| 380 | /* |
| 381 | ODBC 3.0 says to use this form |
| 382 | if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS) |
| 383 | */ |
| 384 | if (SQLFreeStmt(hstmtUpdate, SQL_DROP) != SQL_SUCCESS) |
| 385 | pDb->DispAllErrors(henv, hdbc); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | if (hstmtInternal) |
| 390 | { |
| 391 | if (SQLFreeStmt(hstmtInternal, SQL_DROP) != SQL_SUCCESS) |
| 392 | pDb->DispAllErrors(henv, hdbc); |
| 393 | } |
| 394 | |
| 395 | // Delete dynamically allocated cursors |
| 396 | if (hstmtDefault) |
| 397 | DeleteCursor(hstmtDefault); |
| 398 | |
| 399 | if (hstmtCount) |
| 400 | DeleteCursor(hstmtCount); |
| 401 | |
| 402 | if (m_hstmtGridQuery) |
| 403 | DeleteCursor(m_hstmtGridQuery); |
| 404 | |
| 405 | } // wxDbTable::cleanup() |
| 406 | |
| 407 | |
| 408 | /***************************** PRIVATE FUNCTIONS *****************************/ |
| 409 | |
| 410 | |
| 411 | void wxDbTable::setCbValueForColumn(int columnIndex) |
| 412 | { |
| 413 | switch(colDefs[columnIndex].DbDataType) |
| 414 | { |
| 415 | case DB_DATA_TYPE_VARCHAR: |
| 416 | case DB_DATA_TYPE_MEMO: |
| 417 | if (colDefs[columnIndex].Null) |
| 418 | colDefs[columnIndex].CbValue = SQL_NULL_DATA; |
| 419 | else |
| 420 | colDefs[columnIndex].CbValue = SQL_NTS; |
| 421 | break; |
| 422 | break; |
| 423 | case DB_DATA_TYPE_INTEGER: |
| 424 | if (colDefs[columnIndex].Null) |
| 425 | colDefs[columnIndex].CbValue = SQL_NULL_DATA; |
| 426 | else |
| 427 | colDefs[columnIndex].CbValue = 0; |
| 428 | break; |
| 429 | case DB_DATA_TYPE_FLOAT: |
| 430 | if (colDefs[columnIndex].Null) |
| 431 | colDefs[columnIndex].CbValue = SQL_NULL_DATA; |
| 432 | else |
| 433 | colDefs[columnIndex].CbValue = 0; |
| 434 | break; |
| 435 | case DB_DATA_TYPE_DATE: |
| 436 | if (colDefs[columnIndex].Null) |
| 437 | colDefs[columnIndex].CbValue = SQL_NULL_DATA; |
| 438 | else |
| 439 | colDefs[columnIndex].CbValue = 0; |
| 440 | break; |
| 441 | case DB_DATA_TYPE_BLOB: |
| 442 | if (colDefs[columnIndex].Null) |
| 443 | colDefs[columnIndex].CbValue = SQL_NULL_DATA; |
| 444 | else |
| 445 | if (colDefs[columnIndex].SqlCtype == SQL_C_WXCHAR) |
| 446 | colDefs[columnIndex].CbValue = SQL_NTS; |
| 447 | else |
| 448 | colDefs[columnIndex].CbValue = SQL_LEN_DATA_AT_EXEC(colDefs[columnIndex].SzDataObj); |
| 449 | break; |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | /********** wxDbTable::bindParams() **********/ |
| 454 | bool wxDbTable::bindParams(bool forUpdate) |
| 455 | { |
| 456 | wxASSERT(!queryOnly); |
| 457 | if (queryOnly) |
| 458 | return false; |
| 459 | |
| 460 | SWORD fSqlType = 0; |
| 461 | SDWORD precision = 0; |
| 462 | SWORD scale = 0; |
| 463 | |
| 464 | // Bind each column of the table that should be bound |
| 465 | // to a parameter marker |
| 466 | int i; |
| 467 | UWORD colNumber; |
| 468 | |
| 469 | for (i=0, colNumber=1; i < m_numCols; i++) |
| 470 | { |
| 471 | if (forUpdate) |
| 472 | { |
| 473 | if (!colDefs[i].Updateable) |
| 474 | continue; |
| 475 | } |
| 476 | else |
| 477 | { |
| 478 | if (!colDefs[i].InsertAllowed) |
| 479 | continue; |
| 480 | } |
| 481 | |
| 482 | switch(colDefs[i].DbDataType) |
| 483 | { |
| 484 | case DB_DATA_TYPE_VARCHAR: |
| 485 | fSqlType = pDb->GetTypeInfVarchar().FsqlType; |
| 486 | precision = colDefs[i].SzDataObj; |
| 487 | scale = 0; |
| 488 | break; |
| 489 | case DB_DATA_TYPE_MEMO: |
| 490 | fSqlType = pDb->GetTypeInfMemo().FsqlType; |
| 491 | precision = colDefs[i].SzDataObj; |
| 492 | scale = 0; |
| 493 | break; |
| 494 | case DB_DATA_TYPE_INTEGER: |
| 495 | fSqlType = pDb->GetTypeInfInteger().FsqlType; |
| 496 | precision = pDb->GetTypeInfInteger().Precision; |
| 497 | scale = 0; |
| 498 | break; |
| 499 | case DB_DATA_TYPE_FLOAT: |
| 500 | fSqlType = pDb->GetTypeInfFloat().FsqlType; |
| 501 | precision = pDb->GetTypeInfFloat().Precision; |
| 502 | scale = pDb->GetTypeInfFloat().MaximumScale; |
| 503 | // SQL Sybase Anywhere v5.5 returned a negative number for the |
| 504 | // MaxScale. This caused ODBC to kick out an error on ibscale. |
| 505 | // I check for this here and set the scale = precision. |
| 506 | //if (scale < 0) |
| 507 | // scale = (short) precision; |
| 508 | break; |
| 509 | case DB_DATA_TYPE_DATE: |
| 510 | fSqlType = pDb->GetTypeInfDate().FsqlType; |
| 511 | precision = pDb->GetTypeInfDate().Precision; |
| 512 | scale = 0; |
| 513 | break; |
| 514 | case DB_DATA_TYPE_BLOB: |
| 515 | fSqlType = pDb->GetTypeInfBlob().FsqlType; |
| 516 | precision = colDefs[i].SzDataObj; |
| 517 | scale = 0; |
| 518 | break; |
| 519 | } |
| 520 | |
| 521 | setCbValueForColumn(i); |
| 522 | |
| 523 | if (forUpdate) |
| 524 | { |
| 525 | if (SQLBindParameter(hstmtUpdate, colNumber++, SQL_PARAM_INPUT, colDefs[i].SqlCtype, |
| 526 | fSqlType, precision, scale, (UCHAR*) colDefs[i].PtrDataObj, |
| 527 | precision+1, &colDefs[i].CbValue) != SQL_SUCCESS) |
| 528 | { |
| 529 | return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate)); |
| 530 | } |
| 531 | } |
| 532 | else |
| 533 | { |
| 534 | if (SQLBindParameter(hstmtInsert, colNumber++, SQL_PARAM_INPUT, colDefs[i].SqlCtype, |
| 535 | fSqlType, precision, scale, (UCHAR*) colDefs[i].PtrDataObj, |
| 536 | precision+1, &colDefs[i].CbValue) != SQL_SUCCESS) |
| 537 | { |
| 538 | return(pDb->DispAllErrors(henv, hdbc, hstmtInsert)); |
| 539 | } |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | // Completed successfully |
| 544 | return true; |
| 545 | |
| 546 | } // wxDbTable::bindParams() |
| 547 | |
| 548 | |
| 549 | /********** wxDbTable::bindInsertParams() **********/ |
| 550 | bool wxDbTable::bindInsertParams(void) |
| 551 | { |
| 552 | return bindParams(false); |
| 553 | } // wxDbTable::bindInsertParams() |
| 554 | |
| 555 | |
| 556 | /********** wxDbTable::bindUpdateParams() **********/ |
| 557 | bool wxDbTable::bindUpdateParams(void) |
| 558 | { |
| 559 | return bindParams(true); |
| 560 | } // wxDbTable::bindUpdateParams() |
| 561 | |
| 562 | |
| 563 | /********** wxDbTable::bindCols() **********/ |
| 564 | bool wxDbTable::bindCols(HSTMT cursor) |
| 565 | { |
| 566 | static SQLLEN cb; |
| 567 | |
| 568 | // Bind each column of the table to a memory address for fetching data |
| 569 | UWORD i; |
| 570 | for (i = 0; i < m_numCols; i++) |
| 571 | { |
| 572 | cb = colDefs[i].CbValue; |
| 573 | if (SQLBindCol(cursor, (UWORD)(i+1), colDefs[i].SqlCtype, (UCHAR*) colDefs[i].PtrDataObj, |
| 574 | colDefs[i].SzDataObj, &cb ) != SQL_SUCCESS) |
| 575 | return (pDb->DispAllErrors(henv, hdbc, cursor)); |
| 576 | } |
| 577 | |
| 578 | // Completed successfully |
| 579 | return true; |
| 580 | |
| 581 | } // wxDbTable::bindCols() |
| 582 | |
| 583 | |
| 584 | /********** wxDbTable::getRec() **********/ |
| 585 | bool wxDbTable::getRec(UWORD fetchType) |
| 586 | { |
| 587 | RETCODE retcode; |
| 588 | |
| 589 | if (!pDb->FwdOnlyCursors()) |
| 590 | { |
| 591 | // Fetch the NEXT, PREV, FIRST or LAST record, depending on fetchType |
| 592 | SQLULEN cRowsFetched; |
| 593 | UWORD rowStatus; |
| 594 | |
| 595 | retcode = SQLExtendedFetch(hstmt, fetchType, 0, &cRowsFetched, &rowStatus); |
| 596 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) |
| 597 | { |
| 598 | if (retcode == SQL_NO_DATA_FOUND) |
| 599 | return false; |
| 600 | else |
| 601 | return(pDb->DispAllErrors(henv, hdbc, hstmt)); |
| 602 | } |
| 603 | else |
| 604 | { |
| 605 | // Set the Null member variable to indicate the Null state |
| 606 | // of each column just read in. |
| 607 | int i; |
| 608 | for (i = 0; i < m_numCols; i++) |
| 609 | colDefs[i].Null = (colDefs[i].CbValue == SQL_NULL_DATA); |
| 610 | } |
| 611 | } |
| 612 | else |
| 613 | { |
| 614 | // Fetch the next record from the record set |
| 615 | retcode = SQLFetch(hstmt); |
| 616 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) |
| 617 | { |
| 618 | if (retcode == SQL_NO_DATA_FOUND) |
| 619 | return false; |
| 620 | else |
| 621 | return(pDb->DispAllErrors(henv, hdbc, hstmt)); |
| 622 | } |
| 623 | else |
| 624 | { |
| 625 | // Set the Null member variable to indicate the Null state |
| 626 | // of each column just read in. |
| 627 | int i; |
| 628 | for (i = 0; i < m_numCols; i++) |
| 629 | colDefs[i].Null = (colDefs[i].CbValue == SQL_NULL_DATA); |
| 630 | } |
| 631 | } |
| 632 | |
| 633 | // Completed successfully |
| 634 | return true; |
| 635 | |
| 636 | } // wxDbTable::getRec() |
| 637 | |
| 638 | |
| 639 | /********** wxDbTable::execDelete() **********/ |
| 640 | bool wxDbTable::execDelete(const wxString &pSqlStmt) |
| 641 | { |
| 642 | RETCODE retcode; |
| 643 | |
| 644 | // Execute the DELETE statement |
| 645 | retcode = SQLExecDirect(hstmtDelete, (SQLTCHAR FAR *) pSqlStmt.c_str(), SQL_NTS); |
| 646 | |
| 647 | if (retcode == SQL_SUCCESS || |
| 648 | retcode == SQL_NO_DATA_FOUND || |
| 649 | retcode == SQL_SUCCESS_WITH_INFO) |
| 650 | { |
| 651 | // Record deleted successfully |
| 652 | return true; |
| 653 | } |
| 654 | |
| 655 | // Problem deleting record |
| 656 | return(pDb->DispAllErrors(henv, hdbc, hstmtDelete)); |
| 657 | |
| 658 | } // wxDbTable::execDelete() |
| 659 | |
| 660 | |
| 661 | /********** wxDbTable::execUpdate() **********/ |
| 662 | bool wxDbTable::execUpdate(const wxString &pSqlStmt) |
| 663 | { |
| 664 | RETCODE retcode; |
| 665 | |
| 666 | // Execute the UPDATE statement |
| 667 | retcode = SQLExecDirect(hstmtUpdate, (SQLTCHAR FAR *) pSqlStmt.c_str(), SQL_NTS); |
| 668 | |
| 669 | if (retcode == SQL_SUCCESS || |
| 670 | retcode == SQL_NO_DATA_FOUND || |
| 671 | retcode == SQL_SUCCESS_WITH_INFO) |
| 672 | { |
| 673 | // Record updated successfully |
| 674 | return true; |
| 675 | } |
| 676 | else if (retcode == SQL_NEED_DATA) |
| 677 | { |
| 678 | PTR pParmID; |
| 679 | retcode = SQLParamData(hstmtUpdate, &pParmID); |
| 680 | while (retcode == SQL_NEED_DATA) |
| 681 | { |
| 682 | // Find the parameter |
| 683 | int i; |
| 684 | for (i=0; i < m_numCols; i++) |
| 685 | { |
| 686 | if (colDefs[i].PtrDataObj == pParmID) |
| 687 | { |
| 688 | // We found it. Store the parameter. |
| 689 | retcode = SQLPutData(hstmtUpdate, pParmID, colDefs[i].SzDataObj); |
| 690 | if (retcode != SQL_SUCCESS) |
| 691 | { |
| 692 | pDb->DispNextError(); |
| 693 | return pDb->DispAllErrors(henv, hdbc, hstmtUpdate); |
| 694 | } |
| 695 | break; |
| 696 | } |
| 697 | } |
| 698 | retcode = SQLParamData(hstmtUpdate, &pParmID); |
| 699 | } |
| 700 | if (retcode == SQL_SUCCESS || |
| 701 | retcode == SQL_NO_DATA_FOUND || |
| 702 | retcode == SQL_SUCCESS_WITH_INFO) |
| 703 | { |
| 704 | // Record updated successfully |
| 705 | return true; |
| 706 | } |
| 707 | } |
| 708 | |
| 709 | // Problem updating record |
| 710 | return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate)); |
| 711 | |
| 712 | } // wxDbTable::execUpdate() |
| 713 | |
| 714 | |
| 715 | /********** wxDbTable::query() **********/ |
| 716 | bool wxDbTable::query(int queryType, bool forUpdate, bool distinct, const wxString &pSqlStmt) |
| 717 | { |
| 718 | wxString sqlStmt; |
| 719 | |
| 720 | if (forUpdate) |
| 721 | // The user may wish to select for update, but the DBMS may not be capable |
| 722 | selectForUpdate = CanSelectForUpdate(); |
| 723 | else |
| 724 | selectForUpdate = false; |
| 725 | |
| 726 | // Set the SQL SELECT string |
| 727 | if (queryType != DB_SELECT_STATEMENT) // A select statement was not passed in, |
| 728 | { // so generate a select statement. |
| 729 | BuildSelectStmt(sqlStmt, queryType, distinct); |
| 730 | pDb->WriteSqlLog(sqlStmt); |
| 731 | } |
| 732 | |
| 733 | // Make sure the cursor is closed first |
| 734 | if (!CloseCursor(hstmt)) |
| 735 | return false; |
| 736 | |
| 737 | // Execute the SQL SELECT statement |
| 738 | int retcode; |
| 739 | retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) (queryType == DB_SELECT_STATEMENT ? pSqlStmt.c_str() : sqlStmt.c_str()), SQL_NTS); |
| 740 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) |
| 741 | return(pDb->DispAllErrors(henv, hdbc, hstmt)); |
| 742 | |
| 743 | // Completed successfully |
| 744 | return true; |
| 745 | |
| 746 | } // wxDbTable::query() |
| 747 | |
| 748 | |
| 749 | /***************************** PUBLIC FUNCTIONS *****************************/ |
| 750 | |
| 751 | |
| 752 | /********** wxDbTable::Open() **********/ |
| 753 | bool wxDbTable::Open(bool checkPrivileges, bool checkTableExists) |
| 754 | { |
| 755 | if (!pDb) |
| 756 | return false; |
| 757 | |
| 758 | int i; |
| 759 | wxString sqlStmt; |
| 760 | wxString s; |
| 761 | |
| 762 | // Calculate the maximum size of the concatenated |
| 763 | // keys for use with wxDbGrid |
| 764 | m_keysize = 0; |
| 765 | for (i=0; i < m_numCols; i++) |
| 766 | { |
| 767 | if (colDefs[i].KeyField) |
| 768 | { |
| 769 | m_keysize += colDefs[i].SzDataObj; |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | s.Empty(); |
| 774 | |
| 775 | bool exists = true; |
| 776 | if (checkTableExists) |
| 777 | { |
| 778 | if (pDb->Dbms() == dbmsPOSTGRES) |
| 779 | exists = pDb->TableExists(tableName, NULL, tablePath); |
| 780 | else |
| 781 | exists = pDb->TableExists(tableName, pDb->GetUsername(), tablePath); |
| 782 | } |
| 783 | |
| 784 | // Verify that the table exists in the database |
| 785 | if (!exists) |
| 786 | { |
| 787 | s = wxT("Table/view does not exist in the database"); |
| 788 | if ( *(pDb->dbInf.accessibleTables) == wxT('Y')) |
| 789 | s += wxT(", or you have no permissions.\n"); |
| 790 | else |
| 791 | s += wxT(".\n"); |
| 792 | } |
| 793 | else if (checkPrivileges) |
| 794 | { |
| 795 | // Verify the user has rights to access the table. |
| 796 | bool hasPrivs wxDUMMY_INITIALIZE(true); |
| 797 | |
| 798 | if (pDb->Dbms() == dbmsPOSTGRES) |
| 799 | hasPrivs = pDb->TablePrivileges(tableName, wxT("SELECT"), pDb->GetUsername(), NULL, tablePath); |
| 800 | else |
| 801 | hasPrivs = pDb->TablePrivileges(tableName, wxT("SELECT"), pDb->GetUsername(), pDb->GetUsername(), tablePath); |
| 802 | |
| 803 | if (!hasPrivs) |
| 804 | s = wxT("Connecting user does not have sufficient privileges to access this table.\n"); |
| 805 | } |
| 806 | |
| 807 | if (!s.empty()) |
| 808 | { |
| 809 | wxString p; |
| 810 | |
| 811 | if (!tablePath.empty()) |
| 812 | p.Printf(wxT("Error opening '%s/%s'.\n"),tablePath.c_str(),tableName.c_str()); |
| 813 | else |
| 814 | p.Printf(wxT("Error opening '%s'.\n"), tableName.c_str()); |
| 815 | |
| 816 | p += s; |
| 817 | pDb->LogError(p.GetData()); |
| 818 | |
| 819 | return false; |
| 820 | } |
| 821 | |
| 822 | // Bind the member variables for field exchange between |
| 823 | // the wxDbTable object and the ODBC record. |
| 824 | if (!queryOnly) |
| 825 | { |
| 826 | if (!bindInsertParams()) // Inserts |
| 827 | return false; |
| 828 | |
| 829 | if (!bindUpdateParams()) // Updates |
| 830 | return false; |
| 831 | } |
| 832 | |
| 833 | if (!bindCols(*hstmtDefault)) // Selects |
| 834 | return false; |
| 835 | |
| 836 | if (!bindCols(hstmtInternal)) // Internal use only |
| 837 | return false; |
| 838 | |
| 839 | /* |
| 840 | * Do NOT bind the hstmtCount cursor!!! |
| 841 | */ |
| 842 | |
| 843 | // Build an insert statement using parameter markers |
| 844 | if (!queryOnly && m_numCols > 0) |
| 845 | { |
| 846 | bool needComma = false; |
| 847 | sqlStmt.Printf(wxT("INSERT INTO %s ("), |
| 848 | pDb->SQLTableName(tableName.c_str()).c_str()); |
| 849 | for (i = 0; i < m_numCols; i++) |
| 850 | { |
| 851 | if (! colDefs[i].InsertAllowed) |
| 852 | continue; |
| 853 | if (needComma) |
| 854 | sqlStmt += wxT(","); |
| 855 | sqlStmt += pDb->SQLColumnName(colDefs[i].ColName); |
| 856 | needComma = true; |
| 857 | } |
| 858 | needComma = false; |
| 859 | sqlStmt += wxT(") VALUES ("); |
| 860 | |
| 861 | int insertableCount = 0; |
| 862 | |
| 863 | for (i = 0; i < m_numCols; i++) |
| 864 | { |
| 865 | if (! colDefs[i].InsertAllowed) |
| 866 | continue; |
| 867 | if (needComma) |
| 868 | sqlStmt += wxT(","); |
| 869 | sqlStmt += wxT("?"); |
| 870 | needComma = true; |
| 871 | insertableCount++; |
| 872 | } |
| 873 | sqlStmt += wxT(")"); |
| 874 | |
| 875 | // Prepare the insert statement for execution |
| 876 | if (insertableCount) |
| 877 | { |
| 878 | if (SQLPrepare(hstmtInsert, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS) |
| 879 | return(pDb->DispAllErrors(henv, hdbc, hstmtInsert)); |
| 880 | } |
| 881 | else |
| 882 | insertable = false; |
| 883 | } |
| 884 | |
| 885 | // Completed successfully |
| 886 | return true; |
| 887 | |
| 888 | } // wxDbTable::Open() |
| 889 | |
| 890 | |
| 891 | /********** wxDbTable::Query() **********/ |
| 892 | bool wxDbTable::Query(bool forUpdate, bool distinct) |
| 893 | { |
| 894 | |
| 895 | return(query(DB_SELECT_WHERE, forUpdate, distinct)); |
| 896 | |
| 897 | } // wxDbTable::Query() |
| 898 | |
| 899 | |
| 900 | /********** wxDbTable::QueryBySqlStmt() **********/ |
| 901 | bool wxDbTable::QueryBySqlStmt(const wxString &pSqlStmt) |
| 902 | { |
| 903 | pDb->WriteSqlLog(pSqlStmt); |
| 904 | |
| 905 | return(query(DB_SELECT_STATEMENT, false, false, pSqlStmt)); |
| 906 | |
| 907 | } // wxDbTable::QueryBySqlStmt() |
| 908 | |
| 909 | |
| 910 | /********** wxDbTable::QueryMatching() **********/ |
| 911 | bool wxDbTable::QueryMatching(bool forUpdate, bool distinct) |
| 912 | { |
| 913 | |
| 914 | return(query(DB_SELECT_MATCHING, forUpdate, distinct)); |
| 915 | |
| 916 | } // wxDbTable::QueryMatching() |
| 917 | |
| 918 | |
| 919 | /********** wxDbTable::QueryOnKeyFields() **********/ |
| 920 | bool wxDbTable::QueryOnKeyFields(bool forUpdate, bool distinct) |
| 921 | { |
| 922 | |
| 923 | return(query(DB_SELECT_KEYFIELDS, forUpdate, distinct)); |
| 924 | |
| 925 | } // wxDbTable::QueryOnKeyFields() |
| 926 | |
| 927 | |
| 928 | /********** wxDbTable::GetPrev() **********/ |
| 929 | bool wxDbTable::GetPrev(void) |
| 930 | { |
| 931 | if (pDb->FwdOnlyCursors()) |
| 932 | { |
| 933 | wxFAIL_MSG(wxT("GetPrev()::Backward scrolling cursors are not enabled for this instance of wxDbTable")); |
| 934 | return false; |
| 935 | } |
| 936 | else |
| 937 | return(getRec(SQL_FETCH_PRIOR)); |
| 938 | |
| 939 | } // wxDbTable::GetPrev() |
| 940 | |
| 941 | |
| 942 | /********** wxDbTable::operator-- **********/ |
| 943 | bool wxDbTable::operator--(int) |
| 944 | { |
| 945 | if (pDb->FwdOnlyCursors()) |
| 946 | { |
| 947 | wxFAIL_MSG(wxT("operator--:Backward scrolling cursors are not enabled for this instance of wxDbTable")); |
| 948 | return false; |
| 949 | } |
| 950 | else |
| 951 | return(getRec(SQL_FETCH_PRIOR)); |
| 952 | |
| 953 | } // wxDbTable::operator-- |
| 954 | |
| 955 | |
| 956 | /********** wxDbTable::GetFirst() **********/ |
| 957 | bool wxDbTable::GetFirst(void) |
| 958 | { |
| 959 | if (pDb->FwdOnlyCursors()) |
| 960 | { |
| 961 | wxFAIL_MSG(wxT("GetFirst():Backward scrolling cursors are not enabled for this instance of wxDbTable")); |
| 962 | return false; |
| 963 | } |
| 964 | else |
| 965 | return(getRec(SQL_FETCH_FIRST)); |
| 966 | |
| 967 | } // wxDbTable::GetFirst() |
| 968 | |
| 969 | |
| 970 | /********** wxDbTable::GetLast() **********/ |
| 971 | bool wxDbTable::GetLast(void) |
| 972 | { |
| 973 | if (pDb->FwdOnlyCursors()) |
| 974 | { |
| 975 | wxFAIL_MSG(wxT("GetLast()::Backward scrolling cursors are not enabled for this instance of wxDbTable")); |
| 976 | return false; |
| 977 | } |
| 978 | else |
| 979 | return(getRec(SQL_FETCH_LAST)); |
| 980 | |
| 981 | } // wxDbTable::GetLast() |
| 982 | |
| 983 | |
| 984 | /********** wxDbTable::BuildDeleteStmt() **********/ |
| 985 | void wxDbTable::BuildDeleteStmt(wxString &pSqlStmt, int typeOfDel, const wxString &pWhereClause) |
| 986 | { |
| 987 | wxASSERT(!queryOnly); |
| 988 | if (queryOnly) |
| 989 | return; |
| 990 | |
| 991 | wxString whereClause; |
| 992 | |
| 993 | whereClause.Empty(); |
| 994 | |
| 995 | // Handle the case of DeleteWhere() and the where clause is blank. It should |
| 996 | // delete all records from the database in this case. |
| 997 | if (typeOfDel == DB_DEL_WHERE && (pWhereClause.Length() == 0)) |
| 998 | { |
| 999 | pSqlStmt.Printf(wxT("DELETE FROM %s"), |
| 1000 | pDb->SQLTableName(tableName.c_str()).c_str()); |
| 1001 | return; |
| 1002 | } |
| 1003 | |
| 1004 | pSqlStmt.Printf(wxT("DELETE FROM %s WHERE "), |
| 1005 | pDb->SQLTableName(tableName.c_str()).c_str()); |
| 1006 | |
| 1007 | // Append the WHERE clause to the SQL DELETE statement |
| 1008 | switch(typeOfDel) |
| 1009 | { |
| 1010 | case DB_DEL_KEYFIELDS: |
| 1011 | // If the datasource supports the ROWID column, build |
| 1012 | // the where on ROWID for efficiency purposes. |
| 1013 | // e.g. DELETE FROM PARTS WHERE ROWID = '111.222.333' |
| 1014 | if (CanUpdateByROWID()) |
| 1015 | { |
| 1016 | SQLLEN cb; |
| 1017 | wxChar rowid[wxDB_ROWID_LEN+1]; |
| 1018 | |
| 1019 | // Get the ROWID value. If not successful retreiving the ROWID, |
| 1020 | // simply fall down through the code and build the WHERE clause |
| 1021 | // based on the key fields. |
| 1022 | if (SQLGetData(hstmt, (UWORD)(m_numCols+1), SQL_C_WXCHAR, (UCHAR*) rowid, sizeof(rowid), &cb) == SQL_SUCCESS) |
| 1023 | { |
| 1024 | pSqlStmt += wxT("ROWID = '"); |
| 1025 | pSqlStmt += rowid; |
| 1026 | pSqlStmt += wxT("'"); |
| 1027 | break; |
| 1028 | } |
| 1029 | } |
| 1030 | // Unable to delete by ROWID, so build a WHERE |
| 1031 | // clause based on the keyfields. |
| 1032 | BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS); |
| 1033 | pSqlStmt += whereClause; |
| 1034 | break; |
| 1035 | case DB_DEL_WHERE: |
| 1036 | pSqlStmt += pWhereClause; |
| 1037 | break; |
| 1038 | case DB_DEL_MATCHING: |
| 1039 | BuildWhereClause(whereClause, DB_WHERE_MATCHING); |
| 1040 | pSqlStmt += whereClause; |
| 1041 | break; |
| 1042 | } |
| 1043 | |
| 1044 | } // BuildDeleteStmt() |
| 1045 | |
| 1046 | |
| 1047 | /***** DEPRECATED: use wxDbTable::BuildDeleteStmt(wxString &....) form *****/ |
| 1048 | void wxDbTable::BuildDeleteStmt(wxChar *pSqlStmt, int typeOfDel, const wxString &pWhereClause) |
| 1049 | { |
| 1050 | wxString tempSqlStmt; |
| 1051 | BuildDeleteStmt(tempSqlStmt, typeOfDel, pWhereClause); |
| 1052 | wxStrcpy(pSqlStmt, tempSqlStmt); |
| 1053 | } // wxDbTable::BuildDeleteStmt() |
| 1054 | |
| 1055 | |
| 1056 | /********** wxDbTable::BuildSelectStmt() **********/ |
| 1057 | void wxDbTable::BuildSelectStmt(wxString &pSqlStmt, int typeOfSelect, bool distinct) |
| 1058 | { |
| 1059 | wxString whereClause; |
| 1060 | whereClause.Empty(); |
| 1061 | |
| 1062 | // Build a select statement to query the database |
| 1063 | pSqlStmt = wxT("SELECT "); |
| 1064 | |
| 1065 | // SELECT DISTINCT values only? |
| 1066 | if (distinct) |
| 1067 | pSqlStmt += wxT("DISTINCT "); |
| 1068 | |
| 1069 | // Was a FROM clause specified to join tables to the base table? |
| 1070 | // Available for ::Query() only!!! |
| 1071 | bool appendFromClause = false; |
| 1072 | #if wxODBC_BACKWARD_COMPATABILITY |
| 1073 | if (typeOfSelect == DB_SELECT_WHERE && from && wxStrlen(from)) |
| 1074 | appendFromClause = true; |
| 1075 | #else |
| 1076 | if (typeOfSelect == DB_SELECT_WHERE && from.Length()) |
| 1077 | appendFromClause = true; |
| 1078 | #endif |
| 1079 | |
| 1080 | // Add the column list |
| 1081 | int i; |
| 1082 | wxString tStr; |
| 1083 | for (i = 0; i < m_numCols; i++) |
| 1084 | { |
| 1085 | tStr = colDefs[i].ColName; |
| 1086 | // If joining tables, the base table column names must be qualified to avoid ambiguity |
| 1087 | if ((appendFromClause || pDb->Dbms() == dbmsACCESS) && tStr.Find(wxT('.')) == wxNOT_FOUND) |
| 1088 | { |
| 1089 | pSqlStmt += pDb->SQLTableName(queryTableName.c_str()); |
| 1090 | pSqlStmt += wxT("."); |
| 1091 | } |
| 1092 | pSqlStmt += pDb->SQLColumnName(colDefs[i].ColName); |
| 1093 | if (i + 1 < m_numCols) |
| 1094 | pSqlStmt += wxT(","); |
| 1095 | } |
| 1096 | |
| 1097 | // If the datasource supports ROWID, get this column as well. Exception: Don't retrieve |
| 1098 | // the ROWID if querying distinct records. The rowid will always be unique. |
| 1099 | if (!distinct && CanUpdateByROWID()) |
| 1100 | { |
| 1101 | // If joining tables, the base table column names must be qualified to avoid ambiguity |
| 1102 | if (appendFromClause || pDb->Dbms() == dbmsACCESS) |
| 1103 | { |
| 1104 | pSqlStmt += wxT(","); |
| 1105 | pSqlStmt += pDb->SQLTableName(queryTableName); |
| 1106 | pSqlStmt += wxT(".ROWID"); |
| 1107 | } |
| 1108 | else |
| 1109 | pSqlStmt += wxT(",ROWID"); |
| 1110 | } |
| 1111 | |
| 1112 | // Append the FROM tablename portion |
| 1113 | pSqlStmt += wxT(" FROM "); |
| 1114 | pSqlStmt += pDb->SQLTableName(queryTableName); |
| 1115 | // pSqlStmt += queryTableName; |
| 1116 | |
| 1117 | // Sybase uses the HOLDLOCK keyword to lock a record during query. |
| 1118 | // The HOLDLOCK keyword follows the table name in the from clause. |
| 1119 | // Each table in the from clause must specify HOLDLOCK or |
| 1120 | // NOHOLDLOCK (the default). Note: The "FOR UPDATE" clause |
| 1121 | // is parsed but ignored in SYBASE Transact-SQL. |
| 1122 | if (selectForUpdate && (pDb->Dbms() == dbmsSYBASE_ASA || pDb->Dbms() == dbmsSYBASE_ASE)) |
| 1123 | pSqlStmt += wxT(" HOLDLOCK"); |
| 1124 | |
| 1125 | if (appendFromClause) |
| 1126 | pSqlStmt += from; |
| 1127 | |
| 1128 | // Append the WHERE clause. Either append the where clause for the class |
| 1129 | // or build a where clause. The typeOfSelect determines this. |
| 1130 | switch(typeOfSelect) |
| 1131 | { |
| 1132 | case DB_SELECT_WHERE: |
| 1133 | #if wxODBC_BACKWARD_COMPATABILITY |
| 1134 | if (where && wxStrlen(where)) // May not want a where clause!!! |
| 1135 | #else |
| 1136 | if (where.Length()) // May not want a where clause!!! |
| 1137 | #endif |
| 1138 | { |
| 1139 | pSqlStmt += wxT(" WHERE "); |
| 1140 | pSqlStmt += where; |
| 1141 | } |
| 1142 | break; |
| 1143 | case DB_SELECT_KEYFIELDS: |
| 1144 | BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS); |
| 1145 | if (whereClause.Length()) |
| 1146 | { |
| 1147 | pSqlStmt += wxT(" WHERE "); |
| 1148 | pSqlStmt += whereClause; |
| 1149 | } |
| 1150 | break; |
| 1151 | case DB_SELECT_MATCHING: |
| 1152 | BuildWhereClause(whereClause, DB_WHERE_MATCHING); |
| 1153 | if (whereClause.Length()) |
| 1154 | { |
| 1155 | pSqlStmt += wxT(" WHERE "); |
| 1156 | pSqlStmt += whereClause; |
| 1157 | } |
| 1158 | break; |
| 1159 | } |
| 1160 | |
| 1161 | // Append the ORDER BY clause |
| 1162 | #if wxODBC_BACKWARD_COMPATABILITY |
| 1163 | if (orderBy && wxStrlen(orderBy)) |
| 1164 | #else |
| 1165 | if (orderBy.Length()) |
| 1166 | #endif |
| 1167 | { |
| 1168 | pSqlStmt += wxT(" ORDER BY "); |
| 1169 | pSqlStmt += orderBy; |
| 1170 | } |
| 1171 | |
| 1172 | // SELECT FOR UPDATE if told to do so and the datasource is capable. Sybase |
| 1173 | // parses the FOR UPDATE clause but ignores it. See the comment above on the |
| 1174 | // HOLDLOCK for Sybase. |
| 1175 | if (selectForUpdate && CanSelectForUpdate()) |
| 1176 | pSqlStmt += wxT(" FOR UPDATE"); |
| 1177 | |
| 1178 | } // wxDbTable::BuildSelectStmt() |
| 1179 | |
| 1180 | |
| 1181 | /***** DEPRECATED: use wxDbTable::BuildSelectStmt(wxString &....) form *****/ |
| 1182 | void wxDbTable::BuildSelectStmt(wxChar *pSqlStmt, int typeOfSelect, bool distinct) |
| 1183 | { |
| 1184 | wxString tempSqlStmt; |
| 1185 | BuildSelectStmt(tempSqlStmt, typeOfSelect, distinct); |
| 1186 | wxStrcpy(pSqlStmt, tempSqlStmt); |
| 1187 | } // wxDbTable::BuildSelectStmt() |
| 1188 | |
| 1189 | |
| 1190 | /********** wxDbTable::BuildUpdateStmt() **********/ |
| 1191 | void wxDbTable::BuildUpdateStmt(wxString &pSqlStmt, int typeOfUpdate, const wxString &pWhereClause) |
| 1192 | { |
| 1193 | wxASSERT(!queryOnly); |
| 1194 | if (queryOnly) |
| 1195 | return; |
| 1196 | |
| 1197 | wxString whereClause; |
| 1198 | whereClause.Empty(); |
| 1199 | |
| 1200 | bool firstColumn = true; |
| 1201 | |
| 1202 | pSqlStmt.Printf(wxT("UPDATE %s SET "), |
| 1203 | pDb->SQLTableName(tableName.c_str()).c_str()); |
| 1204 | |
| 1205 | // Append a list of columns to be updated |
| 1206 | int i; |
| 1207 | for (i = 0; i < m_numCols; i++) |
| 1208 | { |
| 1209 | // Only append Updateable columns |
| 1210 | if (colDefs[i].Updateable) |
| 1211 | { |
| 1212 | if (!firstColumn) |
| 1213 | pSqlStmt += wxT(","); |
| 1214 | else |
| 1215 | firstColumn = false; |
| 1216 | |
| 1217 | pSqlStmt += pDb->SQLColumnName(colDefs[i].ColName); |
| 1218 | // pSqlStmt += colDefs[i].ColName; |
| 1219 | pSqlStmt += wxT(" = ?"); |
| 1220 | } |
| 1221 | } |
| 1222 | |
| 1223 | // Append the WHERE clause to the SQL UPDATE statement |
| 1224 | pSqlStmt += wxT(" WHERE "); |
| 1225 | switch(typeOfUpdate) |
| 1226 | { |
| 1227 | case DB_UPD_KEYFIELDS: |
| 1228 | // If the datasource supports the ROWID column, build |
| 1229 | // the where on ROWID for efficiency purposes. |
| 1230 | // e.g. UPDATE PARTS SET Col1 = ?, Col2 = ? WHERE ROWID = '111.222.333' |
| 1231 | if (CanUpdateByROWID()) |
| 1232 | { |
| 1233 | SQLLEN cb; |
| 1234 | wxChar rowid[wxDB_ROWID_LEN+1]; |
| 1235 | |
| 1236 | // Get the ROWID value. If not successful retreiving the ROWID, |
| 1237 | // simply fall down through the code and build the WHERE clause |
| 1238 | // based on the key fields. |
| 1239 | if (SQLGetData(hstmt, (UWORD)(m_numCols+1), SQL_C_WXCHAR, (UCHAR*) rowid, sizeof(rowid), &cb) == SQL_SUCCESS) |
| 1240 | { |
| 1241 | pSqlStmt += wxT("ROWID = '"); |
| 1242 | pSqlStmt += rowid; |
| 1243 | pSqlStmt += wxT("'"); |
| 1244 | break; |
| 1245 | } |
| 1246 | } |
| 1247 | // Unable to delete by ROWID, so build a WHERE |
| 1248 | // clause based on the keyfields. |
| 1249 | BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS); |
| 1250 | pSqlStmt += whereClause; |
| 1251 | break; |
| 1252 | case DB_UPD_WHERE: |
| 1253 | pSqlStmt += pWhereClause; |
| 1254 | break; |
| 1255 | } |
| 1256 | } // BuildUpdateStmt() |
| 1257 | |
| 1258 | |
| 1259 | /***** DEPRECATED: use wxDbTable::BuildUpdateStmt(wxString &....) form *****/ |
| 1260 | void wxDbTable::BuildUpdateStmt(wxChar *pSqlStmt, int typeOfUpdate, const wxString &pWhereClause) |
| 1261 | { |
| 1262 | wxString tempSqlStmt; |
| 1263 | BuildUpdateStmt(tempSqlStmt, typeOfUpdate, pWhereClause); |
| 1264 | wxStrcpy(pSqlStmt, tempSqlStmt); |
| 1265 | } // BuildUpdateStmt() |
| 1266 | |
| 1267 | |
| 1268 | /********** wxDbTable::BuildWhereClause() **********/ |
| 1269 | void wxDbTable::BuildWhereClause(wxString &pWhereClause, int typeOfWhere, |
| 1270 | const wxString &qualTableName, bool useLikeComparison) |
| 1271 | /* |
| 1272 | * Note: BuildWhereClause() currently ignores timestamp columns. |
| 1273 | * They are not included as part of the where clause. |
| 1274 | */ |
| 1275 | { |
| 1276 | bool moreThanOneColumn = false; |
| 1277 | wxString colValue; |
| 1278 | |
| 1279 | // Loop through the columns building a where clause as you go |
| 1280 | int colNumber; |
| 1281 | for (colNumber = 0; colNumber < m_numCols; colNumber++) |
| 1282 | { |
| 1283 | // Determine if this column should be included in the WHERE clause |
| 1284 | if ((typeOfWhere == DB_WHERE_KEYFIELDS && colDefs[colNumber].KeyField) || |
| 1285 | (typeOfWhere == DB_WHERE_MATCHING && (!IsColNull((UWORD)colNumber)))) |
| 1286 | { |
| 1287 | // Skip over timestamp columns |
| 1288 | if (colDefs[colNumber].SqlCtype == SQL_C_TIMESTAMP) |
| 1289 | continue; |
| 1290 | // If there is more than 1 column, join them with the keyword "AND" |
| 1291 | if (moreThanOneColumn) |
| 1292 | pWhereClause += wxT(" AND "); |
| 1293 | else |
| 1294 | moreThanOneColumn = true; |
| 1295 | |
| 1296 | // Concatenate where phrase for the column |
| 1297 | wxString tStr = colDefs[colNumber].ColName; |
| 1298 | |
| 1299 | if (qualTableName.Length() && tStr.Find(wxT('.')) == wxNOT_FOUND) |
| 1300 | { |
| 1301 | pWhereClause += pDb->SQLTableName(qualTableName); |
| 1302 | pWhereClause += wxT("."); |
| 1303 | } |
| 1304 | pWhereClause += pDb->SQLColumnName(colDefs[colNumber].ColName); |
| 1305 | |
| 1306 | if (useLikeComparison && (colDefs[colNumber].SqlCtype == SQL_C_WXCHAR)) |
| 1307 | pWhereClause += wxT(" LIKE "); |
| 1308 | else |
| 1309 | pWhereClause += wxT(" = "); |
| 1310 | |
| 1311 | switch(colDefs[colNumber].SqlCtype) |
| 1312 | { |
| 1313 | case SQL_C_CHAR: |
| 1314 | #ifdef SQL_C_WCHAR |
| 1315 | case SQL_C_WCHAR: |
| 1316 | #endif |
| 1317 | //case SQL_C_WXCHAR: SQL_C_WXCHAR is covered by either SQL_C_CHAR or SQL_C_WCHAR |
| 1318 | colValue.Printf(wxT("'%s'"), (UCHAR FAR *) colDefs[colNumber].PtrDataObj); |
| 1319 | break; |
| 1320 | case SQL_C_SHORT: |
| 1321 | case SQL_C_SSHORT: |
| 1322 | colValue.Printf(wxT("%hi"), *((SWORD *) colDefs[colNumber].PtrDataObj)); |
| 1323 | break; |
| 1324 | case SQL_C_USHORT: |
| 1325 | colValue.Printf(wxT("%hu"), *((UWORD *) colDefs[colNumber].PtrDataObj)); |
| 1326 | break; |
| 1327 | case SQL_C_LONG: |
| 1328 | case SQL_C_SLONG: |
| 1329 | colValue.Printf(wxT("%li"), *((SDWORD *) colDefs[colNumber].PtrDataObj)); |
| 1330 | break; |
| 1331 | case SQL_C_ULONG: |
| 1332 | colValue.Printf(wxT("%lu"), *((UDWORD *) colDefs[colNumber].PtrDataObj)); |
| 1333 | break; |
| 1334 | case SQL_C_FLOAT: |
| 1335 | colValue.Printf(wxT("%.6f"), *((SFLOAT *) colDefs[colNumber].PtrDataObj)); |
| 1336 | break; |
| 1337 | case SQL_C_DOUBLE: |
| 1338 | colValue.Printf(wxT("%.6f"), *((SDOUBLE *) colDefs[colNumber].PtrDataObj)); |
| 1339 | break; |
| 1340 | default: |
| 1341 | { |
| 1342 | wxString strMsg; |
| 1343 | strMsg.Printf(wxT("wxDbTable::bindParams(): Unknown column type for colDefs %d colName %s"), |
| 1344 | colNumber,colDefs[colNumber].ColName); |
| 1345 | wxFAIL_MSG(strMsg.c_str()); |
| 1346 | } |
| 1347 | break; |
| 1348 | } |
| 1349 | pWhereClause += colValue; |
| 1350 | } |
| 1351 | } |
| 1352 | } // wxDbTable::BuildWhereClause() |
| 1353 | |
| 1354 | |
| 1355 | /***** DEPRECATED: use wxDbTable::BuildWhereClause(wxString &....) form *****/ |
| 1356 | void wxDbTable::BuildWhereClause(wxChar *pWhereClause, int typeOfWhere, |
| 1357 | const wxString &qualTableName, bool useLikeComparison) |
| 1358 | { |
| 1359 | wxString tempSqlStmt; |
| 1360 | BuildWhereClause(tempSqlStmt, typeOfWhere, qualTableName, useLikeComparison); |
| 1361 | wxStrcpy(pWhereClause, tempSqlStmt); |
| 1362 | } // wxDbTable::BuildWhereClause() |
| 1363 | |
| 1364 | |
| 1365 | /********** wxDbTable::GetRowNum() **********/ |
| 1366 | UWORD wxDbTable::GetRowNum(void) |
| 1367 | { |
| 1368 | UDWORD rowNum; |
| 1369 | |
| 1370 | if (SQLGetStmtOption(hstmt, SQL_ROW_NUMBER, (UCHAR*) &rowNum) != SQL_SUCCESS) |
| 1371 | { |
| 1372 | pDb->DispAllErrors(henv, hdbc, hstmt); |
| 1373 | return(0); |
| 1374 | } |
| 1375 | |
| 1376 | // Completed successfully |
| 1377 | return((UWORD) rowNum); |
| 1378 | |
| 1379 | } // wxDbTable::GetRowNum() |
| 1380 | |
| 1381 | |
| 1382 | /********** wxDbTable::CloseCursor() **********/ |
| 1383 | bool wxDbTable::CloseCursor(HSTMT cursor) |
| 1384 | { |
| 1385 | if (SQLFreeStmt(cursor, SQL_CLOSE) != SQL_SUCCESS) |
| 1386 | return(pDb->DispAllErrors(henv, hdbc, cursor)); |
| 1387 | |
| 1388 | // Completed successfully |
| 1389 | return true; |
| 1390 | |
| 1391 | } // wxDbTable::CloseCursor() |
| 1392 | |
| 1393 | |
| 1394 | /********** wxDbTable::CreateTable() **********/ |
| 1395 | bool wxDbTable::CreateTable(bool attemptDrop) |
| 1396 | { |
| 1397 | if (!pDb) |
| 1398 | return false; |
| 1399 | |
| 1400 | int i, j; |
| 1401 | wxString sqlStmt; |
| 1402 | |
| 1403 | #ifdef DBDEBUG_CONSOLE |
| 1404 | cout << wxT("Creating Table ") << tableName << wxT("...") << endl; |
| 1405 | #endif |
| 1406 | |
| 1407 | // Drop table first |
| 1408 | if (attemptDrop && !DropTable()) |
| 1409 | return false; |
| 1410 | |
| 1411 | // Create the table |
| 1412 | #ifdef DBDEBUG_CONSOLE |
| 1413 | for (i = 0; i < m_numCols; i++) |
| 1414 | { |
| 1415 | // Exclude derived columns since they are NOT part of the base table |
| 1416 | if (colDefs[i].DerivedCol) |
| 1417 | continue; |
| 1418 | cout << i + 1 << wxT(": ") << colDefs[i].ColName << wxT("; "); |
| 1419 | switch(colDefs[i].DbDataType) |
| 1420 | { |
| 1421 | case DB_DATA_TYPE_VARCHAR: |
| 1422 | cout << pDb->GetTypeInfVarchar().TypeName << wxT("(") << (int)(colDefs[i].SzDataObj / sizeof(wxChar)) << wxT(")"); |
| 1423 | break; |
| 1424 | case DB_DATA_TYPE_MEMO: |
| 1425 | cout << pDb->GetTypeInfMemo().TypeName; |
| 1426 | break; |
| 1427 | case DB_DATA_TYPE_INTEGER: |
| 1428 | cout << pDb->GetTypeInfInteger().TypeName; |
| 1429 | break; |
| 1430 | case DB_DATA_TYPE_FLOAT: |
| 1431 | cout << pDb->GetTypeInfFloat().TypeName; |
| 1432 | break; |
| 1433 | case DB_DATA_TYPE_DATE: |
| 1434 | cout << pDb->GetTypeInfDate().TypeName; |
| 1435 | break; |
| 1436 | case DB_DATA_TYPE_BLOB: |
| 1437 | cout << pDb->GetTypeInfBlob().TypeName; |
| 1438 | break; |
| 1439 | } |
| 1440 | cout << endl; |
| 1441 | } |
| 1442 | #endif |
| 1443 | |
| 1444 | // Build a CREATE TABLE string from the colDefs structure. |
| 1445 | bool needComma = false; |
| 1446 | |
| 1447 | sqlStmt.Printf(wxT("CREATE TABLE %s ("), |
| 1448 | pDb->SQLTableName(tableName.c_str()).c_str()); |
| 1449 | |
| 1450 | for (i = 0; i < m_numCols; i++) |
| 1451 | { |
| 1452 | // Exclude derived columns since they are NOT part of the base table |
| 1453 | if (colDefs[i].DerivedCol) |
| 1454 | continue; |
| 1455 | // Comma Delimiter |
| 1456 | if (needComma) |
| 1457 | sqlStmt += wxT(","); |
| 1458 | // Column Name |
| 1459 | sqlStmt += pDb->SQLColumnName(colDefs[i].ColName); |
| 1460 | // sqlStmt += colDefs[i].ColName; |
| 1461 | sqlStmt += wxT(" "); |
| 1462 | // Column Type |
| 1463 | switch(colDefs[i].DbDataType) |
| 1464 | { |
| 1465 | case DB_DATA_TYPE_VARCHAR: |
| 1466 | sqlStmt += pDb->GetTypeInfVarchar().TypeName; |
| 1467 | break; |
| 1468 | case DB_DATA_TYPE_MEMO: |
| 1469 | sqlStmt += pDb->GetTypeInfMemo().TypeName; |
| 1470 | break; |
| 1471 | case DB_DATA_TYPE_INTEGER: |
| 1472 | sqlStmt += pDb->GetTypeInfInteger().TypeName; |
| 1473 | break; |
| 1474 | case DB_DATA_TYPE_FLOAT: |
| 1475 | sqlStmt += pDb->GetTypeInfFloat().TypeName; |
| 1476 | break; |
| 1477 | case DB_DATA_TYPE_DATE: |
| 1478 | sqlStmt += pDb->GetTypeInfDate().TypeName; |
| 1479 | break; |
| 1480 | case DB_DATA_TYPE_BLOB: |
| 1481 | sqlStmt += pDb->GetTypeInfBlob().TypeName; |
| 1482 | break; |
| 1483 | } |
| 1484 | // For varchars, append the size of the string |
| 1485 | if (colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR && |
| 1486 | (pDb->Dbms() != dbmsMY_SQL || pDb->GetTypeInfVarchar().TypeName != _T("text")))// || |
| 1487 | // colDefs[i].DbDataType == DB_DATA_TYPE_BLOB) |
| 1488 | { |
| 1489 | wxString s; |
| 1490 | s.Printf(wxT("(%d)"), (int)(colDefs[i].SzDataObj / sizeof(wxChar))); |
| 1491 | sqlStmt += s; |
| 1492 | } |
| 1493 | |
| 1494 | if (pDb->Dbms() == dbmsDB2 || |
| 1495 | pDb->Dbms() == dbmsMY_SQL || |
| 1496 | pDb->Dbms() == dbmsSYBASE_ASE || |
| 1497 | pDb->Dbms() == dbmsINTERBASE || |
| 1498 | pDb->Dbms() == dbmsFIREBIRD || |
| 1499 | pDb->Dbms() == dbmsMS_SQL_SERVER) |
| 1500 | { |
| 1501 | if (colDefs[i].KeyField) |
| 1502 | { |
| 1503 | sqlStmt += wxT(" NOT NULL"); |
| 1504 | } |
| 1505 | } |
| 1506 | |
| 1507 | needComma = true; |
| 1508 | } |
| 1509 | // If there is a primary key defined, include it in the create statement |
| 1510 | for (i = j = 0; i < m_numCols; i++) |
| 1511 | { |
| 1512 | if (colDefs[i].KeyField) |
| 1513 | { |
| 1514 | j++; |
| 1515 | break; |
| 1516 | } |
| 1517 | } |
| 1518 | if ( j && (pDb->Dbms() != dbmsDBASE) |
| 1519 | && (pDb->Dbms() != dbmsXBASE_SEQUITER) ) // Found a keyfield |
| 1520 | { |
| 1521 | switch (pDb->Dbms()) |
| 1522 | { |
| 1523 | case dbmsACCESS: |
| 1524 | case dbmsINFORMIX: |
| 1525 | case dbmsSYBASE_ASA: |
| 1526 | case dbmsSYBASE_ASE: |
| 1527 | case dbmsMY_SQL: |
| 1528 | case dbmsFIREBIRD: |
| 1529 | { |
| 1530 | // MySQL goes out on this one. We also declare the relevant key NON NULL above |
| 1531 | sqlStmt += wxT(",PRIMARY KEY ("); |
| 1532 | break; |
| 1533 | } |
| 1534 | default: |
| 1535 | { |
| 1536 | sqlStmt += wxT(",CONSTRAINT "); |
| 1537 | // DB2 is limited to 18 characters for index names |
| 1538 | if (pDb->Dbms() == dbmsDB2) |
| 1539 | { |
| 1540 | 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.")); |
| 1541 | sqlStmt += pDb->SQLTableName(tableName.substr(0, 13).c_str()); |
| 1542 | // sqlStmt += tableName.substr(0, 13); |
| 1543 | } |
| 1544 | else |
| 1545 | sqlStmt += pDb->SQLTableName(tableName.c_str()); |
| 1546 | // sqlStmt += tableName; |
| 1547 | |
| 1548 | sqlStmt += wxT("_PIDX PRIMARY KEY ("); |
| 1549 | break; |
| 1550 | } |
| 1551 | } |
| 1552 | |
| 1553 | // List column name(s) of column(s) comprising the primary key |
| 1554 | for (i = j = 0; i < m_numCols; i++) |
| 1555 | { |
| 1556 | if (colDefs[i].KeyField) |
| 1557 | { |
| 1558 | if (j++) // Multi part key, comma separate names |
| 1559 | sqlStmt += wxT(","); |
| 1560 | sqlStmt += pDb->SQLColumnName(colDefs[i].ColName); |
| 1561 | |
| 1562 | if (pDb->Dbms() == dbmsMY_SQL && |
| 1563 | colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR) |
| 1564 | { |
| 1565 | wxString s; |
| 1566 | s.Printf(wxT("(%d)"), (int)(colDefs[i].SzDataObj / sizeof(wxChar))); |
| 1567 | sqlStmt += s; |
| 1568 | } |
| 1569 | } |
| 1570 | } |
| 1571 | sqlStmt += wxT(")"); |
| 1572 | |
| 1573 | if (pDb->Dbms() == dbmsINFORMIX || |
| 1574 | pDb->Dbms() == dbmsSYBASE_ASA || |
| 1575 | pDb->Dbms() == dbmsSYBASE_ASE) |
| 1576 | { |
| 1577 | sqlStmt += wxT(" CONSTRAINT "); |
| 1578 | sqlStmt += pDb->SQLTableName(tableName); |
| 1579 | // sqlStmt += tableName; |
| 1580 | sqlStmt += wxT("_PIDX"); |
| 1581 | } |
| 1582 | } |
| 1583 | // Append the closing parentheses for the create table statement |
| 1584 | sqlStmt += wxT(")"); |
| 1585 | |
| 1586 | pDb->WriteSqlLog(sqlStmt); |
| 1587 | |
| 1588 | #ifdef DBDEBUG_CONSOLE |
| 1589 | cout << endl << sqlStmt.c_str() << endl; |
| 1590 | #endif |
| 1591 | |
| 1592 | // Execute the CREATE TABLE statement |
| 1593 | RETCODE retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS); |
| 1594 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO) |
| 1595 | { |
| 1596 | pDb->DispAllErrors(henv, hdbc, hstmt); |
| 1597 | pDb->RollbackTrans(); |
| 1598 | CloseCursor(hstmt); |
| 1599 | return false; |
| 1600 | } |
| 1601 | |
| 1602 | // Commit the transaction and close the cursor |
| 1603 | if (!pDb->CommitTrans()) |
| 1604 | return false; |
| 1605 | if (!CloseCursor(hstmt)) |
| 1606 | return false; |
| 1607 | |
| 1608 | // Database table created successfully |
| 1609 | return true; |
| 1610 | |
| 1611 | } // wxDbTable::CreateTable() |
| 1612 | |
| 1613 | |
| 1614 | /********** wxDbTable::DropTable() **********/ |
| 1615 | bool wxDbTable::DropTable() |
| 1616 | { |
| 1617 | // NOTE: This function returns true if the Table does not exist, but |
| 1618 | // only for identified databases. Code will need to be added |
| 1619 | // below for any other databases when those databases are defined |
| 1620 | // to handle this situation consistently |
| 1621 | |
| 1622 | wxString sqlStmt; |
| 1623 | |
| 1624 | sqlStmt.Printf(wxT("DROP TABLE %s"), |
| 1625 | pDb->SQLTableName(tableName.c_str()).c_str()); |
| 1626 | |
| 1627 | pDb->WriteSqlLog(sqlStmt); |
| 1628 | |
| 1629 | #ifdef DBDEBUG_CONSOLE |
| 1630 | cout << endl << sqlStmt.c_str() << endl; |
| 1631 | #endif |
| 1632 | |
| 1633 | RETCODE retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS); |
| 1634 | if (retcode != SQL_SUCCESS) |
| 1635 | { |
| 1636 | // Check for "Base table not found" error and ignore |
| 1637 | pDb->GetNextError(henv, hdbc, hstmt); |
| 1638 | if (wxStrcmp(pDb->sqlState, wxT("S0002")) /*&& |
| 1639 | wxStrcmp(pDb->sqlState, wxT("S1000"))*/) // "Base table not found" |
| 1640 | { |
| 1641 | // Check for product specific error codes |
| 1642 | if (!((pDb->Dbms() == dbmsSYBASE_ASA && !wxStrcmp(pDb->sqlState,wxT("42000"))) || // 5.x (and lower?) |
| 1643 | (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("37000"))) || |
| 1644 | (pDb->Dbms() == dbmsPERVASIVE_SQL && !wxStrcmp(pDb->sqlState,wxT("S1000"))) || // Returns an S1000 then an S0002 |
| 1645 | (pDb->Dbms() == dbmsPOSTGRES && !wxStrcmp(pDb->sqlState,wxT("08S01"))))) |
| 1646 | { |
| 1647 | pDb->DispNextError(); |
| 1648 | pDb->DispAllErrors(henv, hdbc, hstmt); |
| 1649 | pDb->RollbackTrans(); |
| 1650 | // CloseCursor(hstmt); |
| 1651 | return false; |
| 1652 | } |
| 1653 | } |
| 1654 | } |
| 1655 | |
| 1656 | // Commit the transaction and close the cursor |
| 1657 | if (! pDb->CommitTrans()) |
| 1658 | return false; |
| 1659 | if (! CloseCursor(hstmt)) |
| 1660 | return false; |
| 1661 | |
| 1662 | return true; |
| 1663 | } // wxDbTable::DropTable() |
| 1664 | |
| 1665 | |
| 1666 | /********** wxDbTable::CreateIndex() **********/ |
| 1667 | bool wxDbTable::CreateIndex(const wxString &indexName, bool unique, UWORD numIndexColumns, |
| 1668 | wxDbIdxDef *pIndexDefs, bool attemptDrop) |
| 1669 | { |
| 1670 | wxString sqlStmt; |
| 1671 | |
| 1672 | // Drop the index first |
| 1673 | if (attemptDrop && !DropIndex(indexName)) |
| 1674 | return false; |
| 1675 | |
| 1676 | // MySQL (and possibly Sybase ASE?? - gt) require that any columns which are used as portions |
| 1677 | // of an index have the columns defined as "NOT NULL". During initial table creation though, |
| 1678 | // it may not be known which columns are necessarily going to be part of an index (e.g. the |
| 1679 | // table was created, then months later you determine that an additional index while |
| 1680 | // give better performance, so you want to add an index). |
| 1681 | // |
| 1682 | // The following block of code will modify the column definition to make the column be |
| 1683 | // defined with the "NOT NULL" qualifier. |
| 1684 | if (pDb->Dbms() == dbmsMY_SQL) |
| 1685 | { |
| 1686 | wxString sqlStmt; |
| 1687 | int i; |
| 1688 | bool ok = true; |
| 1689 | for (i = 0; i < numIndexColumns && ok; i++) |
| 1690 | { |
| 1691 | int j = 0; |
| 1692 | bool found = false; |
| 1693 | // Find the column definition that has the ColName that matches the |
| 1694 | // index column name. We need to do this to get the DB_DATA_TYPE of |
| 1695 | // the index column, as MySQL's syntax for the ALTER column requires |
| 1696 | // this information |
| 1697 | while (!found && (j < this->m_numCols)) |
| 1698 | { |
| 1699 | if (wxStrcmp(colDefs[j].ColName,pIndexDefs[i].ColName) == 0) |
| 1700 | found = true; |
| 1701 | if (!found) |
| 1702 | j++; |
| 1703 | } |
| 1704 | |
| 1705 | if (found) |
| 1706 | { |
| 1707 | ok = pDb->ModifyColumn(tableName, pIndexDefs[i].ColName, |
| 1708 | colDefs[j].DbDataType, (int)(colDefs[j].SzDataObj / sizeof(wxChar)), |
| 1709 | wxT("NOT NULL")); |
| 1710 | |
| 1711 | if (!ok) |
| 1712 | { |
| 1713 | #if 0 |
| 1714 | // retcode is not used |
| 1715 | wxODBC_ERRORS retcode; |
| 1716 | // Oracle returns a DB_ERR_GENERAL_ERROR if the column is already |
| 1717 | // defined to be NOT NULL, but reportedly MySQL doesn't mind. |
| 1718 | // This line is just here for debug checking of the value |
| 1719 | retcode = (wxODBC_ERRORS)pDb->DB_STATUS; |
| 1720 | #endif |
| 1721 | } |
| 1722 | } |
| 1723 | else |
| 1724 | ok = false; |
| 1725 | } |
| 1726 | if (ok) |
| 1727 | pDb->CommitTrans(); |
| 1728 | else |
| 1729 | { |
| 1730 | pDb->RollbackTrans(); |
| 1731 | return false; |
| 1732 | } |
| 1733 | } |
| 1734 | |
| 1735 | // Build a CREATE INDEX statement |
| 1736 | sqlStmt = wxT("CREATE "); |
| 1737 | if (unique) |
| 1738 | sqlStmt += wxT("UNIQUE "); |
| 1739 | |
| 1740 | sqlStmt += wxT("INDEX "); |
| 1741 | sqlStmt += pDb->SQLTableName(indexName); |
| 1742 | sqlStmt += wxT(" ON "); |
| 1743 | |
| 1744 | sqlStmt += pDb->SQLTableName(tableName); |
| 1745 | // sqlStmt += tableName; |
| 1746 | sqlStmt += wxT(" ("); |
| 1747 | |
| 1748 | // Append list of columns making up index |
| 1749 | int i; |
| 1750 | for (i = 0; i < numIndexColumns; i++) |
| 1751 | { |
| 1752 | sqlStmt += pDb->SQLColumnName(pIndexDefs[i].ColName); |
| 1753 | // sqlStmt += pIndexDefs[i].ColName; |
| 1754 | |
| 1755 | // MySQL requires a key length on VARCHAR keys |
| 1756 | if ( pDb->Dbms() == dbmsMY_SQL ) |
| 1757 | { |
| 1758 | // Find the details on this column |
| 1759 | int j; |
| 1760 | for ( j = 0; j < m_numCols; ++j ) |
| 1761 | { |
| 1762 | if ( wxStrcmp( pIndexDefs[i].ColName, colDefs[j].ColName ) == 0 ) |
| 1763 | { |
| 1764 | break; |
| 1765 | } |
| 1766 | } |
| 1767 | if ( colDefs[j].DbDataType == DB_DATA_TYPE_VARCHAR) |
| 1768 | { |
| 1769 | wxString s; |
| 1770 | s.Printf(wxT("(%d)"), (int)(colDefs[i].SzDataObj / sizeof(wxChar))); |
| 1771 | sqlStmt += s; |
| 1772 | } |
| 1773 | } |
| 1774 | |
| 1775 | // Postgres and SQL Server 7 do not support the ASC/DESC keywords for index columns |
| 1776 | if (!((pDb->Dbms() == dbmsMS_SQL_SERVER) && (wxStrncmp(pDb->dbInf.dbmsVer,_T("07"),2)==0)) && |
| 1777 | !(pDb->Dbms() == dbmsFIREBIRD) && |
| 1778 | !(pDb->Dbms() == dbmsPOSTGRES)) |
| 1779 | { |
| 1780 | if (pIndexDefs[i].Ascending) |
| 1781 | sqlStmt += wxT(" ASC"); |
| 1782 | else |
| 1783 | sqlStmt += wxT(" DESC"); |
| 1784 | } |
| 1785 | else |
| 1786 | wxASSERT_MSG(pIndexDefs[i].Ascending, _T("Datasource does not support DESCending index columns")); |
| 1787 | |
| 1788 | if ((i + 1) < numIndexColumns) |
| 1789 | sqlStmt += wxT(","); |
| 1790 | } |
| 1791 | |
| 1792 | // Append closing parentheses |
| 1793 | sqlStmt += wxT(")"); |
| 1794 | |
| 1795 | pDb->WriteSqlLog(sqlStmt); |
| 1796 | |
| 1797 | #ifdef DBDEBUG_CONSOLE |
| 1798 | cout << endl << sqlStmt.c_str() << endl << endl; |
| 1799 | #endif |
| 1800 | |
| 1801 | // Execute the CREATE INDEX statement |
| 1802 | RETCODE retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS); |
| 1803 | if (retcode != SQL_SUCCESS) |
| 1804 | { |
| 1805 | pDb->DispAllErrors(henv, hdbc, hstmt); |
| 1806 | pDb->RollbackTrans(); |
| 1807 | CloseCursor(hstmt); |
| 1808 | return false; |
| 1809 | } |
| 1810 | |
| 1811 | // Commit the transaction and close the cursor |
| 1812 | if (! pDb->CommitTrans()) |
| 1813 | return false; |
| 1814 | if (! CloseCursor(hstmt)) |
| 1815 | return false; |
| 1816 | |
| 1817 | // Index Created Successfully |
| 1818 | return true; |
| 1819 | |
| 1820 | } // wxDbTable::CreateIndex() |
| 1821 | |
| 1822 | |
| 1823 | /********** wxDbTable::DropIndex() **********/ |
| 1824 | bool wxDbTable::DropIndex(const wxString &indexName) |
| 1825 | { |
| 1826 | // NOTE: This function returns true if the Index does not exist, but |
| 1827 | // only for identified databases. Code will need to be added |
| 1828 | // below for any other databases when those databases are defined |
| 1829 | // to handle this situation consistently |
| 1830 | |
| 1831 | wxString sqlStmt; |
| 1832 | |
| 1833 | if (pDb->Dbms() == dbmsACCESS || pDb->Dbms() == dbmsMY_SQL || |
| 1834 | pDb->Dbms() == dbmsDBASE /*|| Paradox needs this syntax too when we add support*/) |
| 1835 | sqlStmt.Printf(wxT("DROP INDEX %s ON %s"), |
| 1836 | pDb->SQLTableName(indexName.c_str()).c_str(), |
| 1837 | pDb->SQLTableName(tableName.c_str()).c_str()); |
| 1838 | else if ((pDb->Dbms() == dbmsMS_SQL_SERVER) || |
| 1839 | (pDb->Dbms() == dbmsSYBASE_ASE) || |
| 1840 | (pDb->Dbms() == dbmsXBASE_SEQUITER)) |
| 1841 | sqlStmt.Printf(wxT("DROP INDEX %s.%s"), |
| 1842 | pDb->SQLTableName(tableName.c_str()).c_str(), |
| 1843 | pDb->SQLTableName(indexName.c_str()).c_str()); |
| 1844 | else |
| 1845 | sqlStmt.Printf(wxT("DROP INDEX %s"), |
| 1846 | pDb->SQLTableName(indexName.c_str()).c_str()); |
| 1847 | |
| 1848 | pDb->WriteSqlLog(sqlStmt); |
| 1849 | |
| 1850 | #ifdef DBDEBUG_CONSOLE |
| 1851 | cout << endl << sqlStmt.c_str() << endl; |
| 1852 | #endif |
| 1853 | RETCODE retcode = SQLExecDirect(hstmt, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS); |
| 1854 | if (retcode != SQL_SUCCESS) |
| 1855 | { |
| 1856 | // Check for "Index not found" error and ignore |
| 1857 | pDb->GetNextError(henv, hdbc, hstmt); |
| 1858 | if (wxStrcmp(pDb->sqlState,wxT("S0012"))) // "Index not found" |
| 1859 | { |
| 1860 | // Check for product specific error codes |
| 1861 | if (!((pDb->Dbms() == dbmsSYBASE_ASA && !wxStrcmp(pDb->sqlState,wxT("42000"))) || // v5.x (and lower?) |
| 1862 | (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("37000"))) || |
| 1863 | (pDb->Dbms() == dbmsMS_SQL_SERVER && !wxStrcmp(pDb->sqlState,wxT("S1000"))) || |
| 1864 | (pDb->Dbms() == dbmsINTERBASE && !wxStrcmp(pDb->sqlState,wxT("S1000"))) || |
| 1865 | (pDb->Dbms() == dbmsMAXDB && !wxStrcmp(pDb->sqlState,wxT("S1000"))) || |
| 1866 | (pDb->Dbms() == dbmsFIREBIRD && !wxStrcmp(pDb->sqlState,wxT("HY000"))) || |
| 1867 | (pDb->Dbms() == dbmsSYBASE_ASE && !wxStrcmp(pDb->sqlState,wxT("S0002"))) || // Base table not found |
| 1868 | (pDb->Dbms() == dbmsMY_SQL && !wxStrcmp(pDb->sqlState,wxT("42S12"))) || // tested by Christopher Ludwik Marino-Cebulski using v3.23.21beta |
| 1869 | (pDb->Dbms() == dbmsPOSTGRES && !wxStrcmp(pDb->sqlState,wxT("08S01"))) |
| 1870 | )) |
| 1871 | { |
| 1872 | pDb->DispNextError(); |
| 1873 | pDb->DispAllErrors(henv, hdbc, hstmt); |
| 1874 | pDb->RollbackTrans(); |
| 1875 | CloseCursor(hstmt); |
| 1876 | return false; |
| 1877 | } |
| 1878 | } |
| 1879 | } |
| 1880 | |
| 1881 | // Commit the transaction and close the cursor |
| 1882 | if (! pDb->CommitTrans()) |
| 1883 | return false; |
| 1884 | if (! CloseCursor(hstmt)) |
| 1885 | return false; |
| 1886 | |
| 1887 | return true; |
| 1888 | } // wxDbTable::DropIndex() |
| 1889 | |
| 1890 | |
| 1891 | /********** wxDbTable::SetOrderByColNums() **********/ |
| 1892 | bool wxDbTable::SetOrderByColNums(UWORD first, ... ) |
| 1893 | { |
| 1894 | int colNumber = first; // using 'int' to be able to look for wxDB_NO_MORE_COLUN_NUMBERS |
| 1895 | va_list argptr; |
| 1896 | |
| 1897 | bool abort = false; |
| 1898 | wxString tempStr; |
| 1899 | |
| 1900 | va_start(argptr, first); /* Initialize variable arguments. */ |
| 1901 | while (!abort && (colNumber != wxDB_NO_MORE_COLUMN_NUMBERS)) |
| 1902 | { |
| 1903 | // Make sure the passed in column number |
| 1904 | // is within the valid range of columns |
| 1905 | // |
| 1906 | // Valid columns are 0 thru m_numCols-1 |
| 1907 | if (colNumber >= m_numCols || colNumber < 0) |
| 1908 | { |
| 1909 | abort = true; |
| 1910 | continue; |
| 1911 | } |
| 1912 | |
| 1913 | if (colNumber != first) |
| 1914 | tempStr += wxT(","); |
| 1915 | |
| 1916 | tempStr += colDefs[colNumber].ColName; |
| 1917 | colNumber = va_arg (argptr, int); |
| 1918 | } |
| 1919 | va_end (argptr); /* Reset variable arguments. */ |
| 1920 | |
| 1921 | SetOrderByClause(tempStr); |
| 1922 | |
| 1923 | return (!abort); |
| 1924 | } // wxDbTable::SetOrderByColNums() |
| 1925 | |
| 1926 | |
| 1927 | /********** wxDbTable::Insert() **********/ |
| 1928 | int wxDbTable::Insert(void) |
| 1929 | { |
| 1930 | wxASSERT(!queryOnly); |
| 1931 | if (queryOnly || !insertable) |
| 1932 | return(DB_FAILURE); |
| 1933 | |
| 1934 | bindInsertParams(); |
| 1935 | |
| 1936 | // Insert the record by executing the already prepared insert statement |
| 1937 | RETCODE retcode; |
| 1938 | retcode = SQLExecute(hstmtInsert); |
| 1939 | if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO && |
| 1940 | retcode != SQL_NEED_DATA) |
| 1941 | { |
| 1942 | // Check to see if integrity constraint was violated |
| 1943 | pDb->GetNextError(henv, hdbc, hstmtInsert); |
| 1944 | if (! wxStrcmp(pDb->sqlState, wxT("23000"))) // Integrity constraint violated |
| 1945 | return(DB_ERR_INTEGRITY_CONSTRAINT_VIOL); |
| 1946 | else |
| 1947 | { |
| 1948 | pDb->DispNextError(); |
| 1949 | pDb->DispAllErrors(henv, hdbc, hstmtInsert); |
| 1950 | return(DB_FAILURE); |
| 1951 | } |
| 1952 | } |
| 1953 | if (retcode == SQL_NEED_DATA) |
| 1954 | { |
| 1955 | PTR pParmID; |
| 1956 | retcode = SQLParamData(hstmtInsert, &pParmID); |
| 1957 | while (retcode == SQL_NEED_DATA) |
| 1958 | { |
| 1959 | // Find the parameter |
| 1960 | int i; |
| 1961 | for (i=0; i < m_numCols; i++) |
| 1962 | { |
| 1963 | if (colDefs[i].PtrDataObj == pParmID) |
| 1964 | { |
| 1965 | // We found it. Store the parameter. |
| 1966 | retcode = SQLPutData(hstmtInsert, pParmID, colDefs[i].SzDataObj); |
| 1967 | if (retcode != SQL_SUCCESS) |
| 1968 | { |
| 1969 | pDb->DispNextError(); |
| 1970 | pDb->DispAllErrors(henv, hdbc, hstmtInsert); |
| 1971 | return(DB_FAILURE); |
| 1972 | } |
| 1973 | break; |
| 1974 | } |
| 1975 | } |
| 1976 | retcode = SQLParamData(hstmtInsert, &pParmID); |
| 1977 | if (retcode != SQL_SUCCESS && |
| 1978 | retcode != SQL_SUCCESS_WITH_INFO) |
| 1979 | { |
| 1980 | // record was not inserted |
| 1981 | pDb->DispNextError(); |
| 1982 | pDb->DispAllErrors(henv, hdbc, hstmtInsert); |
| 1983 | return(DB_FAILURE); |
| 1984 | } |
| 1985 | } |
| 1986 | } |
| 1987 | |
| 1988 | // Record inserted into the datasource successfully |
| 1989 | return(DB_SUCCESS); |
| 1990 | |
| 1991 | } // wxDbTable::Insert() |
| 1992 | |
| 1993 | |
| 1994 | /********** wxDbTable::Update() **********/ |
| 1995 | bool wxDbTable::Update(void) |
| 1996 | { |
| 1997 | wxASSERT(!queryOnly); |
| 1998 | if (queryOnly) |
| 1999 | return false; |
| 2000 | |
| 2001 | wxString sqlStmt; |
| 2002 | |
| 2003 | // Build the SQL UPDATE statement |
| 2004 | BuildUpdateStmt(sqlStmt, DB_UPD_KEYFIELDS); |
| 2005 | |
| 2006 | pDb->WriteSqlLog(sqlStmt); |
| 2007 | |
| 2008 | #ifdef DBDEBUG_CONSOLE |
| 2009 | cout << endl << sqlStmt.c_str() << endl << endl; |
| 2010 | #endif |
| 2011 | |
| 2012 | // Execute the SQL UPDATE statement |
| 2013 | return(execUpdate(sqlStmt)); |
| 2014 | |
| 2015 | } // wxDbTable::Update() |
| 2016 | |
| 2017 | |
| 2018 | /********** wxDbTable::Update(pSqlStmt) **********/ |
| 2019 | bool wxDbTable::Update(const wxString &pSqlStmt) |
| 2020 | { |
| 2021 | wxASSERT(!queryOnly); |
| 2022 | if (queryOnly) |
| 2023 | return false; |
| 2024 | |
| 2025 | pDb->WriteSqlLog(pSqlStmt); |
| 2026 | |
| 2027 | return(execUpdate(pSqlStmt)); |
| 2028 | |
| 2029 | } // wxDbTable::Update(pSqlStmt) |
| 2030 | |
| 2031 | |
| 2032 | /********** wxDbTable::UpdateWhere() **********/ |
| 2033 | bool wxDbTable::UpdateWhere(const wxString &pWhereClause) |
| 2034 | { |
| 2035 | wxASSERT(!queryOnly); |
| 2036 | if (queryOnly) |
| 2037 | return false; |
| 2038 | |
| 2039 | wxString sqlStmt; |
| 2040 | |
| 2041 | // Build the SQL UPDATE statement |
| 2042 | BuildUpdateStmt(sqlStmt, DB_UPD_WHERE, pWhereClause); |
| 2043 | |
| 2044 | pDb->WriteSqlLog(sqlStmt); |
| 2045 | |
| 2046 | #ifdef DBDEBUG_CONSOLE |
| 2047 | cout << endl << sqlStmt.c_str() << endl << endl; |
| 2048 | #endif |
| 2049 | |
| 2050 | // Execute the SQL UPDATE statement |
| 2051 | return(execUpdate(sqlStmt)); |
| 2052 | |
| 2053 | } // wxDbTable::UpdateWhere() |
| 2054 | |
| 2055 | |
| 2056 | /********** wxDbTable::Delete() **********/ |
| 2057 | bool wxDbTable::Delete(void) |
| 2058 | { |
| 2059 | wxASSERT(!queryOnly); |
| 2060 | if (queryOnly) |
| 2061 | return false; |
| 2062 | |
| 2063 | wxString sqlStmt; |
| 2064 | sqlStmt.Empty(); |
| 2065 | |
| 2066 | // Build the SQL DELETE statement |
| 2067 | BuildDeleteStmt(sqlStmt, DB_DEL_KEYFIELDS); |
| 2068 | |
| 2069 | pDb->WriteSqlLog(sqlStmt); |
| 2070 | |
| 2071 | // Execute the SQL DELETE statement |
| 2072 | return(execDelete(sqlStmt)); |
| 2073 | |
| 2074 | } // wxDbTable::Delete() |
| 2075 | |
| 2076 | |
| 2077 | /********** wxDbTable::DeleteWhere() **********/ |
| 2078 | bool wxDbTable::DeleteWhere(const wxString &pWhereClause) |
| 2079 | { |
| 2080 | wxASSERT(!queryOnly); |
| 2081 | if (queryOnly) |
| 2082 | return false; |
| 2083 | |
| 2084 | wxString sqlStmt; |
| 2085 | sqlStmt.Empty(); |
| 2086 | |
| 2087 | // Build the SQL DELETE statement |
| 2088 | BuildDeleteStmt(sqlStmt, DB_DEL_WHERE, pWhereClause); |
| 2089 | |
| 2090 | pDb->WriteSqlLog(sqlStmt); |
| 2091 | |
| 2092 | // Execute the SQL DELETE statement |
| 2093 | return(execDelete(sqlStmt)); |
| 2094 | |
| 2095 | } // wxDbTable::DeleteWhere() |
| 2096 | |
| 2097 | |
| 2098 | /********** wxDbTable::DeleteMatching() **********/ |
| 2099 | bool wxDbTable::DeleteMatching(void) |
| 2100 | { |
| 2101 | wxASSERT(!queryOnly); |
| 2102 | if (queryOnly) |
| 2103 | return false; |
| 2104 | |
| 2105 | wxString sqlStmt; |
| 2106 | sqlStmt.Empty(); |
| 2107 | |
| 2108 | // Build the SQL DELETE statement |
| 2109 | BuildDeleteStmt(sqlStmt, DB_DEL_MATCHING); |
| 2110 | |
| 2111 | pDb->WriteSqlLog(sqlStmt); |
| 2112 | |
| 2113 | // Execute the SQL DELETE statement |
| 2114 | return(execDelete(sqlStmt)); |
| 2115 | |
| 2116 | } // wxDbTable::DeleteMatching() |
| 2117 | |
| 2118 | |
| 2119 | /********** wxDbTable::IsColNull() **********/ |
| 2120 | bool wxDbTable::IsColNull(UWORD colNumber) const |
| 2121 | { |
| 2122 | /* |
| 2123 | This logic is just not right. It would indicate true |
| 2124 | if a numeric field were set to a value of 0. |
| 2125 | |
| 2126 | switch(colDefs[colNumber].SqlCtype) |
| 2127 | { |
| 2128 | case SQL_C_CHAR: |
| 2129 | case SQL_C_WCHAR: |
| 2130 | //case SQL_C_WXCHAR: SQL_C_WXCHAR is covered by either SQL_C_CHAR or SQL_C_WCHAR |
| 2131 | return(((UCHAR FAR *) colDefs[colNumber].PtrDataObj)[0] == 0); |
| 2132 | case SQL_C_SSHORT: |
| 2133 | return(( *((SWORD *) colDefs[colNumber].PtrDataObj)) == 0); |
| 2134 | case SQL_C_USHORT: |
| 2135 | return(( *((UWORD*) colDefs[colNumber].PtrDataObj)) == 0); |
| 2136 | case SQL_C_SLONG: |
| 2137 | return(( *((SDWORD *) colDefs[colNumber].PtrDataObj)) == 0); |
| 2138 | case SQL_C_ULONG: |
| 2139 | return(( *((UDWORD *) colDefs[colNumber].PtrDataObj)) == 0); |
| 2140 | case SQL_C_FLOAT: |
| 2141 | return(( *((SFLOAT *) colDefs[colNumber].PtrDataObj)) == 0); |
| 2142 | case SQL_C_DOUBLE: |
| 2143 | return((*((SDOUBLE *) colDefs[colNumber].PtrDataObj)) == 0); |
| 2144 | case SQL_C_TIMESTAMP: |
| 2145 | TIMESTAMP_STRUCT *pDt; |
| 2146 | pDt = (TIMESTAMP_STRUCT *) colDefs[colNumber].PtrDataObj; |
| 2147 | if (pDt->year == 0 && pDt->month == 0 && pDt->day == 0) |
| 2148 | return true; |
| 2149 | else |
| 2150 | return false; |
| 2151 | default: |
| 2152 | return true; |
| 2153 | } |
| 2154 | */ |
| 2155 | return (colDefs[colNumber].Null); |
| 2156 | } // wxDbTable::IsColNull() |
| 2157 | |
| 2158 | |
| 2159 | /********** wxDbTable::CanSelectForUpdate() **********/ |
| 2160 | bool wxDbTable::CanSelectForUpdate(void) |
| 2161 | { |
| 2162 | if (queryOnly) |
| 2163 | return false; |
| 2164 | |
| 2165 | if (pDb->Dbms() == dbmsMY_SQL) |
| 2166 | return false; |
| 2167 | |
| 2168 | if ((pDb->Dbms() == dbmsORACLE) || |
| 2169 | (pDb->dbInf.posStmts & SQL_PS_SELECT_FOR_UPDATE)) |
| 2170 | return true; |
| 2171 | else |
| 2172 | return false; |
| 2173 | |
| 2174 | } // wxDbTable::CanSelectForUpdate() |
| 2175 | |
| 2176 | |
| 2177 | /********** wxDbTable::CanUpdateByROWID() **********/ |
| 2178 | bool wxDbTable::CanUpdateByROWID(void) |
| 2179 | { |
| 2180 | /* |
| 2181 | * NOTE: Returning false for now until this can be debugged, |
| 2182 | * as the ROWID is not getting updated correctly |
| 2183 | */ |
| 2184 | return false; |
| 2185 | /* |
| 2186 | if (pDb->Dbms() == dbmsORACLE) |
| 2187 | return true; |
| 2188 | else |
| 2189 | return false; |
| 2190 | */ |
| 2191 | } // wxDbTable::CanUpdateByROWID() |
| 2192 | |
| 2193 | |
| 2194 | /********** wxDbTable::IsCursorClosedOnCommit() **********/ |
| 2195 | bool wxDbTable::IsCursorClosedOnCommit(void) |
| 2196 | { |
| 2197 | if (pDb->dbInf.cursorCommitBehavior == SQL_CB_PRESERVE) |
| 2198 | return false; |
| 2199 | else |
| 2200 | return true; |
| 2201 | |
| 2202 | } // wxDbTable::IsCursorClosedOnCommit() |
| 2203 | |
| 2204 | |
| 2205 | |
| 2206 | /********** wxDbTable::ClearMemberVar() **********/ |
| 2207 | void wxDbTable::ClearMemberVar(UWORD colNumber, bool setToNull) |
| 2208 | { |
| 2209 | wxASSERT(colNumber < m_numCols); |
| 2210 | |
| 2211 | switch(colDefs[colNumber].SqlCtype) |
| 2212 | { |
| 2213 | case SQL_C_CHAR: |
| 2214 | #ifdef SQL_C_WCHAR |
| 2215 | case SQL_C_WCHAR: |
| 2216 | #endif |
| 2217 | //case SQL_C_WXCHAR: SQL_C_WXCHAR is covered by either SQL_C_CHAR or SQL_C_WCHAR |
| 2218 | ((UCHAR FAR *) colDefs[colNumber].PtrDataObj)[0] = 0; |
| 2219 | break; |
| 2220 | case SQL_C_SSHORT: |
| 2221 | *((SWORD *) colDefs[colNumber].PtrDataObj) = 0; |
| 2222 | break; |
| 2223 | case SQL_C_USHORT: |
| 2224 | *((UWORD*) colDefs[colNumber].PtrDataObj) = 0; |
| 2225 | break; |
| 2226 | case SQL_C_LONG: |
| 2227 | case SQL_C_SLONG: |
| 2228 | *((SDWORD *) colDefs[colNumber].PtrDataObj) = 0; |
| 2229 | break; |
| 2230 | case SQL_C_ULONG: |
| 2231 | *((UDWORD *) colDefs[colNumber].PtrDataObj) = 0; |
| 2232 | break; |
| 2233 | case SQL_C_FLOAT: |
| 2234 | *((SFLOAT *) colDefs[colNumber].PtrDataObj) = 0.0f; |
| 2235 | break; |
| 2236 | case SQL_C_DOUBLE: |
| 2237 | *((SDOUBLE *) colDefs[colNumber].PtrDataObj) = 0.0f; |
| 2238 | break; |
| 2239 | case SQL_C_TIMESTAMP: |
| 2240 | TIMESTAMP_STRUCT *pDt; |
| 2241 | pDt = (TIMESTAMP_STRUCT *) colDefs[colNumber].PtrDataObj; |
| 2242 | pDt->year = 0; |
| 2243 | pDt->month = 0; |
| 2244 | pDt->day = 0; |
| 2245 | pDt->hour = 0; |
| 2246 | pDt->minute = 0; |
| 2247 | pDt->second = 0; |
| 2248 | pDt->fraction = 0; |
| 2249 | break; |
| 2250 | } |
| 2251 | |
| 2252 | if (setToNull) |
| 2253 | SetColNull(colNumber); |
| 2254 | } // wxDbTable::ClearMemberVar() |
| 2255 | |
| 2256 | |
| 2257 | /********** wxDbTable::ClearMemberVars() **********/ |
| 2258 | void wxDbTable::ClearMemberVars(bool setToNull) |
| 2259 | { |
| 2260 | int i; |
| 2261 | |
| 2262 | // Loop through the columns setting each member variable to zero |
| 2263 | for (i=0; i < m_numCols; i++) |
| 2264 | ClearMemberVar((UWORD)i,setToNull); |
| 2265 | |
| 2266 | } // wxDbTable::ClearMemberVars() |
| 2267 | |
| 2268 | |
| 2269 | /********** wxDbTable::SetQueryTimeout() **********/ |
| 2270 | bool wxDbTable::SetQueryTimeout(UDWORD nSeconds) |
| 2271 | { |
| 2272 | if (SQLSetStmtOption(hstmtInsert, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS) |
| 2273 | return(pDb->DispAllErrors(henv, hdbc, hstmtInsert)); |
| 2274 | if (SQLSetStmtOption(hstmtUpdate, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS) |
| 2275 | return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate)); |
| 2276 | if (SQLSetStmtOption(hstmtDelete, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS) |
| 2277 | return(pDb->DispAllErrors(henv, hdbc, hstmtDelete)); |
| 2278 | if (SQLSetStmtOption(hstmtInternal, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS) |
| 2279 | return(pDb->DispAllErrors(henv, hdbc, hstmtInternal)); |
| 2280 | |
| 2281 | // Completed Successfully |
| 2282 | return true; |
| 2283 | |
| 2284 | } // wxDbTable::SetQueryTimeout() |
| 2285 | |
| 2286 | |
| 2287 | /********** wxDbTable::SetColDefs() **********/ |
| 2288 | bool wxDbTable::SetColDefs(UWORD index, const wxString &fieldName, int dataType, void *pData, |
| 2289 | SWORD cType, int size, bool keyField, bool updateable, |
| 2290 | bool insertAllowed, bool derivedColumn) |
| 2291 | { |
| 2292 | wxString tmpStr; |
| 2293 | |
| 2294 | if (index >= m_numCols) // Columns numbers are zero based.... |
| 2295 | { |
| 2296 | tmpStr.Printf(wxT("Specified column index (%d) exceeds the maximum number of columns (%d) registered for this table definition. Column definition not added."), index, m_numCols); |
| 2297 | wxFAIL_MSG(tmpStr); |
| 2298 | wxLogDebug(tmpStr); |
| 2299 | return false; |
| 2300 | } |
| 2301 | |
| 2302 | if (!colDefs) // May happen if the database connection fails |
| 2303 | return false; |
| 2304 | |
| 2305 | if (fieldName.Length() > (unsigned int) DB_MAX_COLUMN_NAME_LEN) |
| 2306 | { |
| 2307 | wxStrncpy(colDefs[index].ColName, fieldName, DB_MAX_COLUMN_NAME_LEN); |
| 2308 | colDefs[index].ColName[DB_MAX_COLUMN_NAME_LEN] = 0; // Prevent buffer overrun |
| 2309 | |
| 2310 | tmpStr.Printf(wxT("Column name '%s' is too long. Truncated to '%s'."), |
| 2311 | fieldName.c_str(),colDefs[index].ColName); |
| 2312 | wxFAIL_MSG(tmpStr); |
| 2313 | wxLogDebug(tmpStr); |
| 2314 | } |
| 2315 | else |
| 2316 | wxStrcpy(colDefs[index].ColName, fieldName); |
| 2317 | |
| 2318 | colDefs[index].DbDataType = dataType; |
| 2319 | colDefs[index].PtrDataObj = pData; |
| 2320 | colDefs[index].SqlCtype = cType; |
| 2321 | colDefs[index].SzDataObj = size; //TODO: glt ??? * sizeof(wxChar) ??? |
| 2322 | colDefs[index].KeyField = keyField; |
| 2323 | colDefs[index].DerivedCol = derivedColumn; |
| 2324 | // Derived columns by definition would NOT be "Insertable" or "Updateable" |
| 2325 | if (derivedColumn) |
| 2326 | { |
| 2327 | colDefs[index].Updateable = false; |
| 2328 | colDefs[index].InsertAllowed = false; |
| 2329 | } |
| 2330 | else |
| 2331 | { |
| 2332 | colDefs[index].Updateable = updateable; |
| 2333 | colDefs[index].InsertAllowed = insertAllowed; |
| 2334 | } |
| 2335 | |
| 2336 | colDefs[index].Null = false; |
| 2337 | |
| 2338 | return true; |
| 2339 | |
| 2340 | } // wxDbTable::SetColDefs() |
| 2341 | |
| 2342 | |
| 2343 | /********** wxDbTable::SetColDefs() **********/ |
| 2344 | wxDbColDataPtr* wxDbTable::SetColDefs(wxDbColInf *pColInfs, UWORD numCols) |
| 2345 | { |
| 2346 | wxASSERT(pColInfs); |
| 2347 | wxDbColDataPtr *pColDataPtrs = NULL; |
| 2348 | |
| 2349 | if (pColInfs) |
| 2350 | { |
| 2351 | UWORD index; |
| 2352 | |
| 2353 | pColDataPtrs = new wxDbColDataPtr[numCols+1]; |
| 2354 | |
| 2355 | for (index = 0; index < numCols; index++) |
| 2356 | { |
| 2357 | // Process the fields |
| 2358 | switch (pColInfs[index].dbDataType) |
| 2359 | { |
| 2360 | case DB_DATA_TYPE_VARCHAR: |
| 2361 | pColDataPtrs[index].PtrDataObj = new wxChar[pColInfs[index].bufferSize+(1*sizeof(wxChar))]; |
| 2362 | pColDataPtrs[index].SzDataObj = pColInfs[index].bufferSize+(1*sizeof(wxChar)); |
| 2363 | pColDataPtrs[index].SqlCtype = SQL_C_WXCHAR; |
| 2364 | break; |
| 2365 | case DB_DATA_TYPE_MEMO: |
| 2366 | pColDataPtrs[index].PtrDataObj = new wxChar[pColInfs[index].bufferSize+(1*sizeof(wxChar))]; |
| 2367 | pColDataPtrs[index].SzDataObj = pColInfs[index].bufferSize+(1*sizeof(wxChar)); |
| 2368 | pColDataPtrs[index].SqlCtype = SQL_C_WXCHAR; |
| 2369 | break; |
| 2370 | case DB_DATA_TYPE_INTEGER: |
| 2371 | // Can be long or short |
| 2372 | if (pColInfs[index].bufferSize == sizeof(long)) |
| 2373 | { |
| 2374 | pColDataPtrs[index].PtrDataObj = new long; |
| 2375 | pColDataPtrs[index].SzDataObj = sizeof(long); |
| 2376 | pColDataPtrs[index].SqlCtype = SQL_C_SLONG; |
| 2377 | } |
| 2378 | else |
| 2379 | { |
| 2380 | pColDataPtrs[index].PtrDataObj = new short; |
| 2381 | pColDataPtrs[index].SzDataObj = sizeof(short); |
| 2382 | pColDataPtrs[index].SqlCtype = SQL_C_SSHORT; |
| 2383 | } |
| 2384 | break; |
| 2385 | case DB_DATA_TYPE_FLOAT: |
| 2386 | // Can be float or double |
| 2387 | if (pColInfs[index].bufferSize == sizeof(float)) |
| 2388 | { |
| 2389 | pColDataPtrs[index].PtrDataObj = new float; |
| 2390 | pColDataPtrs[index].SzDataObj = sizeof(float); |
| 2391 | pColDataPtrs[index].SqlCtype = SQL_C_FLOAT; |
| 2392 | } |
| 2393 | else |
| 2394 | { |
| 2395 | pColDataPtrs[index].PtrDataObj = new double; |
| 2396 | pColDataPtrs[index].SzDataObj = sizeof(double); |
| 2397 | pColDataPtrs[index].SqlCtype = SQL_C_DOUBLE; |
| 2398 | } |
| 2399 | break; |
| 2400 | case DB_DATA_TYPE_DATE: |
| 2401 | pColDataPtrs[index].PtrDataObj = new TIMESTAMP_STRUCT; |
| 2402 | pColDataPtrs[index].SzDataObj = sizeof(TIMESTAMP_STRUCT); |
| 2403 | pColDataPtrs[index].SqlCtype = SQL_C_TIMESTAMP; |
| 2404 | break; |
| 2405 | case DB_DATA_TYPE_BLOB: |
| 2406 | wxFAIL_MSG(wxT("This form of ::SetColDefs() cannot be used with BLOB columns")); |
| 2407 | pColDataPtrs[index].PtrDataObj = /*BLOB ADDITION NEEDED*/NULL; |
| 2408 | pColDataPtrs[index].SzDataObj = /*BLOB ADDITION NEEDED*/sizeof(void *); |
| 2409 | pColDataPtrs[index].SqlCtype = SQL_VARBINARY; |
| 2410 | break; |
| 2411 | } |
| 2412 | if (pColDataPtrs[index].PtrDataObj != NULL) |
| 2413 | SetColDefs (index,pColInfs[index].colName,pColInfs[index].dbDataType, pColDataPtrs[index].PtrDataObj, pColDataPtrs[index].SqlCtype, pColDataPtrs[index].SzDataObj); |
| 2414 | else |
| 2415 | { |
| 2416 | // Unable to build all the column definitions, as either one of |
| 2417 | // the calls to "new" failed above, or there was a BLOB field |
| 2418 | // to have a column definition for. If BLOBs are to be used, |
| 2419 | // the other form of ::SetColDefs() must be used, as it is impossible |
| 2420 | // to know the maximum size to create the PtrDataObj to be. |
| 2421 | delete [] pColDataPtrs; |
| 2422 | return NULL; |
| 2423 | } |
| 2424 | } |
| 2425 | } |
| 2426 | |
| 2427 | return (pColDataPtrs); |
| 2428 | |
| 2429 | } // wxDbTable::SetColDefs() |
| 2430 | |
| 2431 | |
| 2432 | /********** wxDbTable::SetCursor() **********/ |
| 2433 | void wxDbTable::SetCursor(HSTMT *hstmtActivate) |
| 2434 | { |
| 2435 | if (hstmtActivate == wxDB_DEFAULT_CURSOR) |
| 2436 | hstmt = *hstmtDefault; |
| 2437 | else |
| 2438 | hstmt = *hstmtActivate; |
| 2439 | |
| 2440 | } // wxDbTable::SetCursor() |
| 2441 | |
| 2442 | |
| 2443 | /********** wxDbTable::Count(const wxString &) **********/ |
| 2444 | ULONG wxDbTable::Count(const wxString &args) |
| 2445 | { |
| 2446 | ULONG count; |
| 2447 | wxString sqlStmt; |
| 2448 | SQLLEN cb; |
| 2449 | |
| 2450 | // Build a "SELECT COUNT(*) FROM queryTableName [WHERE whereClause]" SQL Statement |
| 2451 | sqlStmt = wxT("SELECT COUNT("); |
| 2452 | sqlStmt += args; |
| 2453 | sqlStmt += wxT(") FROM "); |
| 2454 | sqlStmt += pDb->SQLTableName(queryTableName); |
| 2455 | // sqlStmt += queryTableName; |
| 2456 | #if wxODBC_BACKWARD_COMPATABILITY |
| 2457 | if (from && wxStrlen(from)) |
| 2458 | #else |
| 2459 | if (from.Length()) |
| 2460 | #endif |
| 2461 | sqlStmt += from; |
| 2462 | |
| 2463 | // Add the where clause if one is provided |
| 2464 | #if wxODBC_BACKWARD_COMPATABILITY |
| 2465 | if (where && wxStrlen(where)) |
| 2466 | #else |
| 2467 | if (where.Length()) |
| 2468 | #endif |
| 2469 | { |
| 2470 | sqlStmt += wxT(" WHERE "); |
| 2471 | sqlStmt += where; |
| 2472 | } |
| 2473 | |
| 2474 | pDb->WriteSqlLog(sqlStmt); |
| 2475 | |
| 2476 | // Initialize the Count cursor if it's not already initialized |
| 2477 | if (!hstmtCount) |
| 2478 | { |
| 2479 | hstmtCount = GetNewCursor(false,false); |
| 2480 | wxASSERT(hstmtCount); |
| 2481 | if (!hstmtCount) |
| 2482 | return(0); |
| 2483 | } |
| 2484 | |
| 2485 | // Execute the SQL statement |
| 2486 | if (SQLExecDirect(*hstmtCount, (SQLTCHAR FAR *) sqlStmt.c_str(), SQL_NTS) != SQL_SUCCESS) |
| 2487 | { |
| 2488 | pDb->DispAllErrors(henv, hdbc, *hstmtCount); |
| 2489 | return(0); |
| 2490 | } |
| 2491 | |
| 2492 | // Fetch the record |
| 2493 | if (SQLFetch(*hstmtCount) != SQL_SUCCESS) |
| 2494 | { |
| 2495 | pDb->DispAllErrors(henv, hdbc, *hstmtCount); |
| 2496 | return(0); |
| 2497 | } |
| 2498 | |
| 2499 | // Obtain the result |
| 2500 | if (SQLGetData(*hstmtCount, (UWORD)1, SQL_C_ULONG, &count, sizeof(count), &cb) != SQL_SUCCESS) |
| 2501 | { |
| 2502 | pDb->DispAllErrors(henv, hdbc, *hstmtCount); |
| 2503 | return(0); |
| 2504 | } |
| 2505 | |
| 2506 | // Free the cursor |
| 2507 | if (SQLFreeStmt(*hstmtCount, SQL_CLOSE) != SQL_SUCCESS) |
| 2508 | pDb->DispAllErrors(henv, hdbc, *hstmtCount); |
| 2509 | |
| 2510 | // Return the record count |
| 2511 | return(count); |
| 2512 | |
| 2513 | } // wxDbTable::Count() |
| 2514 | |
| 2515 | |
| 2516 | /********** wxDbTable::Refresh() **********/ |
| 2517 | bool wxDbTable::Refresh(void) |
| 2518 | { |
| 2519 | bool result = true; |
| 2520 | |
| 2521 | // Switch to the internal cursor so any active cursors are not corrupted |
| 2522 | HSTMT currCursor = GetCursor(); |
| 2523 | hstmt = hstmtInternal; |
| 2524 | #if wxODBC_BACKWARD_COMPATABILITY |
| 2525 | // Save the where and order by clauses |
| 2526 | wxChar *saveWhere = where; |
| 2527 | wxChar *saveOrderBy = orderBy; |
| 2528 | #else |
| 2529 | wxString saveWhere = where; |
| 2530 | wxString saveOrderBy = orderBy; |
| 2531 | #endif |
| 2532 | // Build a where clause to refetch the record with. Try and use the |
| 2533 | // ROWID if it's available, ow use the key fields. |
| 2534 | wxString whereClause; |
| 2535 | whereClause.Empty(); |
| 2536 | |
| 2537 | if (CanUpdateByROWID()) |
| 2538 | { |
| 2539 | SQLLEN cb; |
| 2540 | wxChar rowid[wxDB_ROWID_LEN+1]; |
| 2541 | |
| 2542 | // Get the ROWID value. If not successful retreiving the ROWID, |
| 2543 | // simply fall down through the code and build the WHERE clause |
| 2544 | // based on the key fields. |
| 2545 | if (SQLGetData(hstmt, (UWORD)(m_numCols+1), SQL_C_WXCHAR, (UCHAR*) rowid, sizeof(rowid), &cb) == SQL_SUCCESS) |
| 2546 | { |
| 2547 | whereClause += pDb->SQLTableName(queryTableName); |
| 2548 | // whereClause += queryTableName; |
| 2549 | whereClause += wxT(".ROWID = '"); |
| 2550 | whereClause += rowid; |
| 2551 | whereClause += wxT("'"); |
| 2552 | } |
| 2553 | } |
| 2554 | |
| 2555 | // If unable to use the ROWID, build a where clause from the keyfields |
| 2556 | if (wxStrlen(whereClause) == 0) |
| 2557 | BuildWhereClause(whereClause, DB_WHERE_KEYFIELDS, queryTableName); |
| 2558 | |
| 2559 | // Requery the record |
| 2560 | where = whereClause; |
| 2561 | orderBy.Empty(); |
| 2562 | if (!Query()) |
| 2563 | result = false; |
| 2564 | |
| 2565 | if (result && !GetNext()) |
| 2566 | result = false; |
| 2567 | |
| 2568 | // Switch back to original cursor |
| 2569 | SetCursor(&currCursor); |
| 2570 | |
| 2571 | // Free the internal cursor |
| 2572 | if (SQLFreeStmt(hstmtInternal, SQL_CLOSE) != SQL_SUCCESS) |
| 2573 | pDb->DispAllErrors(henv, hdbc, hstmtInternal); |
| 2574 | |
| 2575 | // Restore the original where and order by clauses |
| 2576 | where = saveWhere; |
| 2577 | orderBy = saveOrderBy; |
| 2578 | |
| 2579 | return(result); |
| 2580 | |
| 2581 | } // wxDbTable::Refresh() |
| 2582 | |
| 2583 | |
| 2584 | /********** wxDbTable::SetColNull() **********/ |
| 2585 | bool wxDbTable::SetColNull(UWORD colNumber, bool set) |
| 2586 | { |
| 2587 | if (colNumber < m_numCols) |
| 2588 | { |
| 2589 | colDefs[colNumber].Null = set; |
| 2590 | if (set) // Blank out the values in the member variable |
| 2591 | ClearMemberVar(colNumber, false); // Must call with false here, or infinite recursion will happen |
| 2592 | |
| 2593 | setCbValueForColumn(colNumber); |
| 2594 | |
| 2595 | return true; |
| 2596 | } |
| 2597 | else |
| 2598 | return false; |
| 2599 | |
| 2600 | } // wxDbTable::SetColNull() |
| 2601 | |
| 2602 | |
| 2603 | /********** wxDbTable::SetColNull() **********/ |
| 2604 | bool wxDbTable::SetColNull(const wxString &colName, bool set) |
| 2605 | { |
| 2606 | int colNumber; |
| 2607 | for (colNumber = 0; colNumber < m_numCols; colNumber++) |
| 2608 | { |
| 2609 | if (!wxStricmp(colName, colDefs[colNumber].ColName)) |
| 2610 | break; |
| 2611 | } |
| 2612 | |
| 2613 | if (colNumber < m_numCols) |
| 2614 | { |
| 2615 | colDefs[colNumber].Null = set; |
| 2616 | if (set) // Blank out the values in the member variable |
| 2617 | ClearMemberVar((UWORD)colNumber,false); // Must call with false here, or infinite recursion will happen |
| 2618 | |
| 2619 | setCbValueForColumn(colNumber); |
| 2620 | |
| 2621 | return true; |
| 2622 | } |
| 2623 | else |
| 2624 | return false; |
| 2625 | |
| 2626 | } // wxDbTable::SetColNull() |
| 2627 | |
| 2628 | |
| 2629 | /********** wxDbTable::GetNewCursor() **********/ |
| 2630 | HSTMT *wxDbTable::GetNewCursor(bool setCursor, bool bindColumns) |
| 2631 | { |
| 2632 | HSTMT *newHSTMT = new HSTMT; |
| 2633 | wxASSERT(newHSTMT); |
| 2634 | if (!newHSTMT) |
| 2635 | return(0); |
| 2636 | |
| 2637 | if (SQLAllocStmt(hdbc, newHSTMT) != SQL_SUCCESS) |
| 2638 | { |
| 2639 | pDb->DispAllErrors(henv, hdbc); |
| 2640 | delete newHSTMT; |
| 2641 | return(0); |
| 2642 | } |
| 2643 | |
| 2644 | if (SQLSetStmtOption(*newHSTMT, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS) |
| 2645 | { |
| 2646 | pDb->DispAllErrors(henv, hdbc, *newHSTMT); |
| 2647 | delete newHSTMT; |
| 2648 | return(0); |
| 2649 | } |
| 2650 | |
| 2651 | if (bindColumns) |
| 2652 | { |
| 2653 | if (!bindCols(*newHSTMT)) |
| 2654 | { |
| 2655 | delete newHSTMT; |
| 2656 | return(0); |
| 2657 | } |
| 2658 | } |
| 2659 | |
| 2660 | if (setCursor) |
| 2661 | SetCursor(newHSTMT); |
| 2662 | |
| 2663 | return(newHSTMT); |
| 2664 | |
| 2665 | } // wxDbTable::GetNewCursor() |
| 2666 | |
| 2667 | |
| 2668 | /********** wxDbTable::DeleteCursor() **********/ |
| 2669 | bool wxDbTable::DeleteCursor(HSTMT *hstmtDel) |
| 2670 | { |
| 2671 | bool result = true; |
| 2672 | |
| 2673 | if (!hstmtDel) // Cursor already deleted |
| 2674 | return(result); |
| 2675 | |
| 2676 | /* |
| 2677 | ODBC 3.0 says to use this form |
| 2678 | if (SQLFreeHandle(*hstmtDel, SQL_DROP) != SQL_SUCCESS) |
| 2679 | |
| 2680 | */ |
| 2681 | if (SQLFreeStmt(*hstmtDel, SQL_DROP) != SQL_SUCCESS) |
| 2682 | { |
| 2683 | pDb->DispAllErrors(henv, hdbc); |
| 2684 | result = false; |
| 2685 | } |
| 2686 | |
| 2687 | delete hstmtDel; |
| 2688 | |
| 2689 | return(result); |
| 2690 | |
| 2691 | } // wxDbTable::DeleteCursor() |
| 2692 | |
| 2693 | ////////////////////////////////////////////////////////////// |
| 2694 | // wxDbGrid support functions |
| 2695 | ////////////////////////////////////////////////////////////// |
| 2696 | |
| 2697 | void wxDbTable::SetRowMode(const rowmode_t rowmode) |
| 2698 | { |
| 2699 | if (!m_hstmtGridQuery) |
| 2700 | { |
| 2701 | m_hstmtGridQuery = GetNewCursor(false,false); |
| 2702 | if (!bindCols(*m_hstmtGridQuery)) |
| 2703 | return; |
| 2704 | } |
| 2705 | |
| 2706 | m_rowmode = rowmode; |
| 2707 | switch (m_rowmode) |
| 2708 | { |
| 2709 | case WX_ROW_MODE_QUERY: |
| 2710 | SetCursor(m_hstmtGridQuery); |
| 2711 | break; |
| 2712 | case WX_ROW_MODE_INDIVIDUAL: |
| 2713 | SetCursor(hstmtDefault); |
| 2714 | break; |
| 2715 | default: |
| 2716 | wxASSERT(0); |
| 2717 | } |
| 2718 | } // wxDbTable::SetRowMode() |
| 2719 | |
| 2720 | |
| 2721 | wxVariant wxDbTable::GetColumn(const int colNumber) const |
| 2722 | { |
| 2723 | wxVariant val; |
| 2724 | if ((colNumber < m_numCols) && (!IsColNull((UWORD)colNumber))) |
| 2725 | { |
| 2726 | switch (colDefs[colNumber].SqlCtype) |
| 2727 | { |
| 2728 | #if wxUSE_UNICODE |
| 2729 | #if defined(SQL_WCHAR) |
| 2730 | case SQL_WCHAR: |
| 2731 | #endif |
| 2732 | #if defined(SQL_WVARCHAR) |
| 2733 | case SQL_WVARCHAR: |
| 2734 | #endif |
| 2735 | #endif |
| 2736 | case SQL_CHAR: |
| 2737 | case SQL_VARCHAR: |
| 2738 | val = (wxChar *)(colDefs[colNumber].PtrDataObj); |
| 2739 | break; |
| 2740 | case SQL_C_LONG: |
| 2741 | case SQL_C_SLONG: |
| 2742 | val = *(long *)(colDefs[colNumber].PtrDataObj); |
| 2743 | break; |
| 2744 | case SQL_C_SHORT: |
| 2745 | case SQL_C_SSHORT: |
| 2746 | val = (long int )(*(short *)(colDefs[colNumber].PtrDataObj)); |
| 2747 | break; |
| 2748 | case SQL_C_ULONG: |
| 2749 | val = (long)(*(unsigned long *)(colDefs[colNumber].PtrDataObj)); |
| 2750 | break; |
| 2751 | case SQL_C_TINYINT: |
| 2752 | val = (long)(*(wxChar *)(colDefs[colNumber].PtrDataObj)); |
| 2753 | break; |
| 2754 | case SQL_C_UTINYINT: |
| 2755 | val = (long)(*(wxChar *)(colDefs[colNumber].PtrDataObj)); |
| 2756 | break; |
| 2757 | case SQL_C_USHORT: |
| 2758 | val = (long)(*(UWORD *)(colDefs[colNumber].PtrDataObj)); |
| 2759 | break; |
| 2760 | case SQL_C_DATE: |
| 2761 | val = (DATE_STRUCT *)(colDefs[colNumber].PtrDataObj); |
| 2762 | break; |
| 2763 | case SQL_C_TIME: |
| 2764 | val = (TIME_STRUCT *)(colDefs[colNumber].PtrDataObj); |
| 2765 | break; |
| 2766 | case SQL_C_TIMESTAMP: |
| 2767 | val = (TIMESTAMP_STRUCT *)(colDefs[colNumber].PtrDataObj); |
| 2768 | break; |
| 2769 | case SQL_C_DOUBLE: |
| 2770 | val = *(double *)(colDefs[colNumber].PtrDataObj); |
| 2771 | break; |
| 2772 | default: |
| 2773 | assert(0); |
| 2774 | } |
| 2775 | } |
| 2776 | return val; |
| 2777 | } // wxDbTable::GetCol() |
| 2778 | |
| 2779 | |
| 2780 | void wxDbTable::SetColumn(const int colNumber, const wxVariant val) |
| 2781 | { |
| 2782 | //FIXME: Add proper wxDateTime support to wxVariant.. |
| 2783 | wxDateTime dateval; |
| 2784 | |
| 2785 | SetColNull((UWORD)colNumber, val.IsNull()); |
| 2786 | |
| 2787 | if (!val.IsNull()) |
| 2788 | { |
| 2789 | if ((colDefs[colNumber].SqlCtype == SQL_C_DATE) |
| 2790 | || (colDefs[colNumber].SqlCtype == SQL_C_TIME) |
| 2791 | || (colDefs[colNumber].SqlCtype == SQL_C_TIMESTAMP)) |
| 2792 | { |
| 2793 | //Returns null if invalid! |
| 2794 | if (!dateval.ParseDate(val.GetString())) |
| 2795 | SetColNull((UWORD)colNumber, true); |
| 2796 | } |
| 2797 | |
| 2798 | switch (colDefs[colNumber].SqlCtype) |
| 2799 | { |
| 2800 | #if wxUSE_UNICODE |
| 2801 | #if defined(SQL_WCHAR) |
| 2802 | case SQL_WCHAR: |
| 2803 | #endif |
| 2804 | #if defined(SQL_WVARCHAR) |
| 2805 | case SQL_WVARCHAR: |
| 2806 | #endif |
| 2807 | #endif |
| 2808 | case SQL_CHAR: |
| 2809 | case SQL_VARCHAR: |
| 2810 | csstrncpyt((wxChar *)(colDefs[colNumber].PtrDataObj), |
| 2811 | val.GetString().c_str(), |
| 2812 | colDefs[colNumber].SzDataObj-1); //TODO: glt ??? * sizeof(wxChar) ??? |
| 2813 | break; |
| 2814 | case SQL_C_LONG: |
| 2815 | case SQL_C_SLONG: |
| 2816 | *(long *)(colDefs[colNumber].PtrDataObj) = val; |
| 2817 | break; |
| 2818 | case SQL_C_SHORT: |
| 2819 | case SQL_C_SSHORT: |
| 2820 | *(short *)(colDefs[colNumber].PtrDataObj) = (short)val.GetLong(); |
| 2821 | break; |
| 2822 | case SQL_C_ULONG: |
| 2823 | *(unsigned long *)(colDefs[colNumber].PtrDataObj) = val.GetLong(); |
| 2824 | break; |
| 2825 | case SQL_C_TINYINT: |
| 2826 | *(wxChar *)(colDefs[colNumber].PtrDataObj) = val.GetChar(); |
| 2827 | break; |
| 2828 | case SQL_C_UTINYINT: |
| 2829 | *(wxChar *)(colDefs[colNumber].PtrDataObj) = val.GetChar(); |
| 2830 | break; |
| 2831 | case SQL_C_USHORT: |
| 2832 | *(unsigned short *)(colDefs[colNumber].PtrDataObj) = (unsigned short)val.GetLong(); |
| 2833 | break; |
| 2834 | //FIXME: Add proper wxDateTime support to wxVariant.. |
| 2835 | case SQL_C_DATE: |
| 2836 | { |
| 2837 | DATE_STRUCT *dataptr = |
| 2838 | (DATE_STRUCT *)colDefs[colNumber].PtrDataObj; |
| 2839 | |
| 2840 | dataptr->year = (SWORD)dateval.GetYear(); |
| 2841 | dataptr->month = (UWORD)(dateval.GetMonth()+1); |
| 2842 | dataptr->day = (UWORD)dateval.GetDay(); |
| 2843 | } |
| 2844 | break; |
| 2845 | case SQL_C_TIME: |
| 2846 | { |
| 2847 | TIME_STRUCT *dataptr = |
| 2848 | (TIME_STRUCT *)colDefs[colNumber].PtrDataObj; |
| 2849 | |
| 2850 | dataptr->hour = dateval.GetHour(); |
| 2851 | dataptr->minute = dateval.GetMinute(); |
| 2852 | dataptr->second = dateval.GetSecond(); |
| 2853 | } |
| 2854 | break; |
| 2855 | case SQL_C_TIMESTAMP: |
| 2856 | { |
| 2857 | TIMESTAMP_STRUCT *dataptr = |
| 2858 | (TIMESTAMP_STRUCT *)colDefs[colNumber].PtrDataObj; |
| 2859 | dataptr->year = (SWORD)dateval.GetYear(); |
| 2860 | dataptr->month = (UWORD)(dateval.GetMonth()+1); |
| 2861 | dataptr->day = (UWORD)dateval.GetDay(); |
| 2862 | |
| 2863 | dataptr->hour = dateval.GetHour(); |
| 2864 | dataptr->minute = dateval.GetMinute(); |
| 2865 | dataptr->second = dateval.GetSecond(); |
| 2866 | } |
| 2867 | break; |
| 2868 | case SQL_C_DOUBLE: |
| 2869 | *(double *)(colDefs[colNumber].PtrDataObj) = val; |
| 2870 | break; |
| 2871 | default: |
| 2872 | assert(0); |
| 2873 | } // switch |
| 2874 | } // if (!val.IsNull()) |
| 2875 | } // wxDbTable::SetCol() |
| 2876 | |
| 2877 | |
| 2878 | GenericKey wxDbTable::GetKey() |
| 2879 | { |
| 2880 | void *blk; |
| 2881 | wxChar *blkptr; |
| 2882 | |
| 2883 | blk = malloc(m_keysize); |
| 2884 | blkptr = (wxChar *) blk; |
| 2885 | |
| 2886 | int i; |
| 2887 | for (i=0; i < m_numCols; i++) |
| 2888 | { |
| 2889 | if (colDefs[i].KeyField) |
| 2890 | { |
| 2891 | memcpy(blkptr,colDefs[i].PtrDataObj, colDefs[i].SzDataObj); |
| 2892 | blkptr += colDefs[i].SzDataObj; |
| 2893 | } |
| 2894 | } |
| 2895 | |
| 2896 | GenericKey k = GenericKey(blk, m_keysize); |
| 2897 | free(blk); |
| 2898 | |
| 2899 | return k; |
| 2900 | } // wxDbTable::GetKey() |
| 2901 | |
| 2902 | |
| 2903 | void wxDbTable::SetKey(const GenericKey& k) |
| 2904 | { |
| 2905 | void *blk; |
| 2906 | wxChar *blkptr; |
| 2907 | |
| 2908 | blk = k.GetBlk(); |
| 2909 | blkptr = (wxChar *)blk; |
| 2910 | |
| 2911 | int i; |
| 2912 | for (i=0; i < m_numCols; i++) |
| 2913 | { |
| 2914 | if (colDefs[i].KeyField) |
| 2915 | { |
| 2916 | SetColNull((UWORD)i, false); |
| 2917 | memcpy(colDefs[i].PtrDataObj, blkptr, colDefs[i].SzDataObj); |
| 2918 | blkptr += colDefs[i].SzDataObj; |
| 2919 | } |
| 2920 | } |
| 2921 | } // wxDbTable::SetKey() |
| 2922 | |
| 2923 | |
| 2924 | #endif // wxUSE_ODBC |
| 2925 | |