src/common/dbgrid.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        dbgrid.cpp
   3 // Purpose:     Displays a wxDbTable in a wxGrid.
   4 // Author:      Roger Gammans, Paul Gammans
   5 // Modified by:
   6 // Created:
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 The Computer Surgery (roger@computer-surgery.co.uk)
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11 // Branched From : dbgrid.cpp,v 1.18 2000/12/19 13:00:58
  12 ///////////////////////////////////////////////////////////////////////////////
  13
  14 #ifdef __GNUG__
  15     #pragma implementation "dbgrid.h"
  16 #endif
  17
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24
  25 #if wxUSE_ODBC
  26 #if wxUSE_NEW_GRID
  27
  28 #ifndef WX_PRECOMP
  29     #include "wx/textctrl.h"
  30     #include "wx/dc.h"
  31 #endif // WX_PRECOMP
  32
  33 #include "wx/generic/gridctrl.h"
  34 #include "wx/dbgrid.h"
  35
  36
  37 wxDbGridCellAttrProvider::wxDbGridCellAttrProvider()
  38 {
  39     m_data=NULL;
  40     m_ColInfo=NULL;
  41 }
  42
  43 wxDbGridCellAttrProvider::wxDbGridCellAttrProvider(wxDbTable *tab, wxDbGridColInfoBase* ColInfo)
  44 {
  45     m_data=tab;
  46     m_ColInfo=ColInfo;
  47 }
  48
  49 wxDbGridCellAttrProvider::~wxDbGridCellAttrProvider()
  50 {
  51 }
  52
  53 wxGridCellAttr *wxDbGridCellAttrProvider::GetAttr(int row, int col,
  54                                       wxGridCellAttr::wxAttrKind  kind) const
  55 {
  56     wxGridCellAttr *attr = wxGridCellAttrProvider::GetAttr(row,col,kind);
  57
  58     if (m_data && m_ColInfo && (m_data->GetNumberOfColumns() > m_ColInfo[col].DbCol))
  59     {
  60         //FIXME: this test could.
  61         //  ??::InsertPending == m_data->get_ModifiedStatus()
  62         //  and if InsertPending use colDef[].InsertAllowed
  63         if (!(m_data->GetColDefs()[(m_ColInfo[col].DbCol)].Updateable))
  64         {
  65             switch(kind)
  66             {
  67                 case (wxGridCellAttr::Any):
  68                     if (!attr)
  69                     {
  70                         attr = new wxGridCellAttr;
  71                         // Store so we don't keep creating / deleting this...
  72                         wxDbGridCellAttrProvider * self = wxConstCast(this, wxDbGridCellAttrProvider) ;
  73                         attr->IncRef();
  74                         self->SetColAttr(attr, col);
  75                         attr->SetReadOnly();
  76                     }
  77                     else
  78                     {
  79                         //We now must check what we were returned. and do the right thing (tm)
  80                         wxGridCellAttr::wxAttrKind attrkind = attr->GetKind();
  81                         if ((attrkind == (wxGridCellAttr::Default)) || (attrkind == (wxGridCellAttr::Cell)) ||
  82                             (attrkind == (wxGridCellAttr::Col)))
  83                         {
  84                                 wxGridCellAttr *attrtomerge = attr;
  85                                 attr = new wxGridCellAttr;
  86                                 attr->SetKind(wxGridCellAttr::Merged);
  87                                 attr->MergeWith(attrtomerge);
  88                                 attr->SetReadOnly();
  89                                 attrtomerge->DecRef();
  90                         }
  91                         attr->SetReadOnly();
  92                     }
  93                 break;
  94                 case (wxGridCellAttr::Col):
  95                     //As we must have a Coll, and were setting Coll attributes
  96                     // we can based on wxdbTable's so just set RO if attr valid
  97                     if (!attr)
  98                     {
  99                         attr = new wxGridCellAttr;
 100                         wxDbGridCellAttrProvider * self = wxConstCast(this, wxDbGridCellAttrProvider) ;
 101                         attr->IncRef();
 102                         self->SetColAttr(attr, col);
 103                     }
 104                     attr->SetReadOnly();
 105                 break;
 106                 default:
 107                     //Dont add RO for...
 108                     //  wxGridCellAttr::Cell - Not required, will inherit on merge from row.
 109                     //  wxGridCellAttr::Row - If wxDbtable ever supports row locking could add
 110                     //                        support to make RO on a row basis also.
 111                     //  wxGridCellAttr::Default - Don't edit this ! or all cell with a attr will become readonly
 112                     //  wxGridCellAttr::Merged - This should never be asked for.
 113                 break;
 114             }
 115         }
 116
 117     }
 118     return attr;
 119 }
 120
 121 void wxDbGridCellAttrProvider::AssignDbTable(wxDbTable *tab)
 122 {
 123     m_data = tab;
 124 }
 125
 126 wxDbGridTableBase::wxDbGridTableBase(wxDbTable *tab, wxDbGridColInfo*  ColInfo,
 127                      int count, bool takeOwnership)  :
 128     m_keys(),
 129     m_data(tab),
 130     m_dbowner(takeOwnership),
 131     m_rowmodified(FALSE)
 132 {
 133
 134     if (count == wxUSE_QUERY)
 135     {
 136         m_rowtotal = m_data ? m_data->Count() : 0;
 137     }
 138     else
 139     {
 140         m_rowtotal = count;
 141     }
 142 //    m_keys.Size(m_rowtotal);
 143     m_row = -1;
 144     if (ColInfo)
 145     {
 146         m_nocols = ColInfo->Length();
 147         m_ColInfo = new wxDbGridColInfoBase[m_nocols];
 148         //Do Copy.
 149         wxDbGridColInfo *ptr = ColInfo;
 150         int i =0;
 151         while (ptr && i < m_nocols)
 152         {
 153             m_ColInfo[i] = ptr->m_data;
 154             ptr = ptr->m_next;
 155             i++;
 156         }
 157 #ifdef __WXDEBUG__
 158         if (ptr)
 159         {
 160             wxLogDebug(wxT("NoCols over length after traversing %i items"),i);
 161         }
 162         if (i < m_nocols)
 163         {
 164             wxLogDebug(wxT("NoCols under length after traversing %i items"),i);
 165         }
 166 #endif
 167     }
 168 }
 169
 170 wxDbGridTableBase::~wxDbGridTableBase()
 171 {
 172     wxDbGridCellAttrProvider *provider;
 173
 174     //Can't check for update here as
 175
 176     //FIXME: should i remove m_ColInfo and m_data from m_attrProvider if a wxDbGridAttrProvider
 177 //    if ((provider = dynamic_cast<wxDbGridCellAttrProvider *>(GetAttrProvider())))
 178      // Using C casting for now until we can support dynamic_cast with wxWindows
 179     provider = (wxDbGridCellAttrProvider *)(GetAttrProvider());
 180     if (provider)
 181     {
 182         provider->AssignDbTable(NULL);
 183     }
 184     delete [] m_ColInfo;
 185
 186     Writeback();
 187     if (m_dbowner)
 188     {
 189         delete m_data;
 190     }
 191 }
 192
 193 bool wxDbGridTableBase::CanHaveAttributes()
 194 {
 195     if (!GetAttrProvider())
 196     {
 197         // use the default attr provider by default
 198         SetAttrProvider(new wxDbGridCellAttrProvider(m_data, m_ColInfo));
 199     }
 200     return TRUE;
 201 }
 202
 203
 204 bool wxDbGridTableBase::AssignDbTable(wxDbTable *tab, int count, bool takeOwnership)
 205 {
 206     wxDbGridCellAttrProvider *provider;
 207
 208     //Remove Information from grid about old data
 209     if (GetView())
 210     {
 211         wxGrid *grid = GetView();
 212         grid->BeginBatch();
 213         grid->ClearSelection();
 214         if (grid->IsCellEditControlEnabled())
 215         {
 216             grid->DisableCellEditControl();
 217         }
 218         wxGridTableMessage msg(this, wxGRIDTABLE_NOTIFY_ROWS_DELETED,0,m_rowtotal);
 219         grid->ProcessTableMessage(msg);
 220     }
 221
 222     //reset our internals...
 223     Writeback();
 224     if (m_dbowner)
 225     {
 226         delete m_data;
 227     }
 228     m_keys.Empty();
 229     m_data = tab;
 230     //FIXME: Remove dynamic_cast before sumision to wxwin
 231 //    if ((provider = dynamic_cast<wxDbGridCellAttrProvider *> (GetAttrProvider())))
 232      // Using C casting for now until we can support dynamic_cast with wxWindows
 233     provider = (wxDbGridCellAttrProvider *)(GetAttrProvider());
 234     if (provider)
 235     {
 236         provider->AssignDbTable(m_data);
 237     }
 238
 239     if (count == wxUSE_QUERY)
 240     {
 241         m_rowtotal = m_data ? m_data->Count() : 0;
 242     }
 243     else
 244     {
 245          m_rowtotal = count;
 246     }
 247     m_row = -1;
 248
 249     //Add Information to grid about new data
 250     if (GetView())
 251     {
 252         wxGrid * grid = GetView();
 253         wxGridTableMessage msg(this, wxGRIDTABLE_NOTIFY_ROWS_APPENDED, m_rowtotal);
 254         grid->ProcessTableMessage(msg);
 255         grid->EndBatch();
 256     }
 257     m_dbowner = takeOwnership;
 258     m_rowmodified = FALSE;
 259     return TRUE;
 260 }
 261
 262 wxString wxDbGridTableBase::GetTypeName(int row, int col)
 263 {
 264     if (GetNumberCols() > col)
 265     {
 266         if (m_ColInfo[col].wxtypename == wxGRID_VALUE_DBAUTO)
 267         {
 268             if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 269             {
 270                 wxFAIL_MSG (_T("You can not use wxGRID_VALUE_DBAUTO for virtual columns"));
 271             }
 272             switch(m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype)
 273             {
 274                 case SQL_C_CHAR:
 275                     return wxGRID_VALUE_STRING;
 276                 case SQL_C_SSHORT:
 277                     return wxGRID_VALUE_NUMBER;
 278                 case SQL_C_USHORT:
 279                     return wxGRID_VALUE_NUMBER;
 280                 case SQL_C_SLONG:
 281                     return wxGRID_VALUE_NUMBER;
 282                 case SQL_C_ULONG:
 283                     return wxGRID_VALUE_NUMBER;
 284                 case SQL_C_FLOAT:
 285                     return wxGRID_VALUE_FLOAT;
 286                 case SQL_C_DOUBLE:
 287                     return wxGRID_VALUE_FLOAT;
 288                 case SQL_C_DATE:
 289                     return wxGRID_VALUE_DATETIME;
 290                 case SQL_C_TIME:
 291                     return wxGRID_VALUE_DATETIME;
 292                 case SQL_C_TIMESTAMP:
 293                     return wxGRID_VALUE_DATETIME;
 294                 default:
 295                     return wxGRID_VALUE_STRING;
 296             }
 297         }
 298         else
 299         {
 300             return m_ColInfo[col].wxtypename;
 301         }
 302     }
 303     wxFAIL_MSG (_T("unknown column"));
 304     return wxString();
 305 }
 306
 307 bool wxDbGridTableBase::CanGetValueAs(int row, int col, const wxString& typeName)
 308 {
 309     wxLogDebug(wxT("CanGetValueAs() on %i,%i"),row,col);
 310     //Is this needed? As it will be validated on GetValueAsXXXX
 311     ValidateRow(row);
 312
 313     if (typeName == wxGRID_VALUE_STRING)
 314     {
 315         //FIXME ummm What about blob field etc.
 316         return TRUE;
 317     }
 318
 319     if (m_data->IsColNull(m_ColInfo[col].DbCol))
 320     {
 321         return FALSE;
 322     }
 323
 324     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 325     {
 326         //If a virtual column then we can't find it's type. we have to
 327         // return FALSE to get using wxVariant.
 328         return FALSE;
 329     }
 330     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 331
 332     if (typeName == wxGRID_VALUE_DATETIME)
 333     {
 334         if ((sqltype == SQL_C_DATE) ||
 335             (sqltype == SQL_C_TIME) ||
 336             (sqltype == SQL_C_TIMESTAMP))
 337         {
 338             return TRUE;
 339         }
 340         return FALSE;
 341     }
 342     if (typeName == wxGRID_VALUE_NUMBER)
 343     {
 344         if ((sqltype == SQL_C_SSHORT) ||
 345             (sqltype == SQL_C_USHORT) ||
 346             (sqltype == SQL_C_SLONG)  ||
 347             (sqltype == SQL_C_ULONG))
 348         {
 349             return TRUE;
 350         }
 351         return FALSE;
 352     }
 353     if (typeName == wxGRID_VALUE_FLOAT)
 354     {
 355         if ((sqltype == SQL_C_SSHORT) ||
 356             (sqltype == SQL_C_USHORT) ||
 357             (sqltype == SQL_C_SLONG)  ||
 358             (sqltype == SQL_C_ULONG)  ||
 359             (sqltype == SQL_C_FLOAT)  ||
 360             (sqltype == SQL_C_DOUBLE))
 361         {
 362             return TRUE;
 363         }
 364         return FALSE;
 365     }
 366     return FALSE;
 367 }
 368
 369 bool wxDbGridTableBase::CanSetValueAs(int row, int col, const wxString& typeName)
 370 {
 371     //Is this needed? As will be validated on SetValueAsXXXX
 372     ValidateRow(row);
 373
 374     if (m_data->IsColNull(m_ColInfo[col].DbCol))
 375     {
 376         return FALSE;
 377     }
 378
 379     if (typeName == wxGRID_VALUE_STRING)
 380     {
 381         //FIXME ummm What about blob field etc.
 382         return TRUE;
 383     }
 384
 385     if (!(m_data->GetColDefs()[(m_ColInfo[col].DbCol)].Updateable))
 386     {
 387         return FALSE;
 388     }
 389
 390     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 391     {
 392         //If a virtual column then we can't find it's type. we have to faulse to
 393         //get using wxVairent.
 394         return FALSE;
 395     }
 396
 397     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 398     if (typeName == wxGRID_VALUE_DATETIME)
 399     {
 400         if ((sqltype == SQL_C_DATE) ||
 401             (sqltype == SQL_C_TIME) ||
 402             (sqltype == SQL_C_TIMESTAMP))
 403         {
 404             return TRUE;
 405         }
 406         return FALSE;
 407     }
 408     if (typeName == wxGRID_VALUE_NUMBER)
 409     {
 410         if ((sqltype == SQL_C_SSHORT) ||
 411             (sqltype == SQL_C_USHORT) ||
 412             (sqltype == SQL_C_SLONG)  ||
 413             (sqltype == SQL_C_ULONG))
 414         {
 415             return TRUE;
 416         }
 417         return FALSE;
 418     }
 419     if (typeName == wxGRID_VALUE_FLOAT)
 420     {
 421         if ((sqltype == SQL_C_SSHORT) ||
 422             (sqltype == SQL_C_USHORT) ||
 423             (sqltype == SQL_C_SLONG)  ||
 424             (sqltype == SQL_C_ULONG)  ||
 425             (sqltype == SQL_C_FLOAT)  ||
 426             (sqltype == SQL_C_DOUBLE))
 427         {
 428             return TRUE;
 429         }
 430         return FALSE;
 431     }
 432     return FALSE;
 433 }
 434
 435 long wxDbGridTableBase::GetValueAsLong(int row, int col)
 436 {
 437     ValidateRow(row);
 438
 439     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 440     {
 441         wxFAIL_MSG (_T("You can not use GetValueAsLong for virtual columns"));
 442         return 0;
 443     }
 444     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 445     if ((sqltype == SQL_C_SSHORT) ||
 446         (sqltype == SQL_C_USHORT) ||
 447         (sqltype == SQL_C_SLONG) ||
 448         (sqltype == SQL_C_ULONG))
 449     {
 450         wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 451         return val.GetLong();
 452     }
 453     wxFAIL_MSG (_T("unknown column, "));
 454     return 0;
 455 }
 456
 457 double wxDbGridTableBase::GetValueAsDouble(int row, int col)
 458 {
 459     wxLogDebug(wxT("GetValueAsDouble() on %i,%i"),row,col);
 460     ValidateRow(row);
 461
 462     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 463     {
 464         wxFAIL_MSG (_T("You can not use GetValueAsDouble for virtual columns"));
 465         return 0.0;
 466     }
 467     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 468     if ((sqltype == SQL_C_SSHORT) ||
 469         (sqltype == SQL_C_USHORT) ||
 470         (sqltype == SQL_C_SLONG) ||
 471         (sqltype == SQL_C_ULONG) ||
 472         (sqltype == SQL_C_FLOAT) ||
 473         (sqltype == SQL_C_DOUBLE))
 474     {
 475         wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 476         return val.GetDouble();
 477     }
 478     wxFAIL_MSG (_T("unknown column"));
 479     return 0.0;
 480 }
 481
 482 bool wxDbGridTableBase::GetValueAsBool(int row, int col)
 483 {
 484     wxLogDebug(wxT("GetValueAsBool() on %i,%i"),row,col);
 485     ValidateRow(row);
 486
 487     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 488     {
 489         wxFAIL_MSG (_T("You can not use GetValueAsBool for virtual columns"));
 490         return 0;
 491     }
 492     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 493     if ((sqltype == SQL_C_SSHORT) ||
 494         (sqltype == SQL_C_USHORT) ||
 495         (sqltype == SQL_C_SLONG) ||
 496         (sqltype == SQL_C_ULONG))
 497     {
 498         wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 499         return val.GetBool();
 500     }
 501     wxFAIL_MSG (_T("unknown column, "));
 502     return 0;
 503 }
 504
 505 void* wxDbGridTableBase::GetValueAsCustom(int row, int col, const wxString& typeName)
 506 {
 507     wxLogDebug(wxT("GetValueAsCustom() on %i,%i"),row,col);
 508     ValidateRow(row);
 509
 510     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 511     {
 512         wxFAIL_MSG (_T("You can not use GetValueAsCustom for virtual columns"));
 513         return NULL;
 514     }
 515     if (m_data->IsColNull(m_ColInfo[col].DbCol))
 516         return NULL;
 517
 518     if (typeName == wxGRID_VALUE_DATETIME)
 519     {
 520         wxDbColDef *pColDefs = m_data->GetColDefs();
 521         int sqltype = pColDefs[(m_ColInfo[col].DbCol)].SqlCtype;
 522
 523         if ((sqltype == SQL_C_DATE) ||
 524             (sqltype == SQL_C_TIME) ||
 525             (sqltype == SQL_C_TIMESTAMP))
 526         {
 527             wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 528             return new wxDateTime(val.GetDateTime());
 529         }
 530     }
 531     wxFAIL_MSG (_T("unknown column data type "));
 532     return NULL;
 533 }
 534
 535
 536 void wxDbGridTableBase::SetValueAsCustom(int row, int col, const wxString& typeName, void* value)
 537 {
 538     wxLogDebug(wxT("SetValueAsCustom() on %i,%i"),row,col);
 539     ValidateRow(row);
 540
 541     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 542     {
 543         wxFAIL_MSG (_T("You can not use SetValueAsCustom for virtual columns"));
 544         return;
 545     }
 546
 547     if (typeName == wxGRID_VALUE_DATETIME)
 548     {
 549         int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 550         if ((sqltype == SQL_C_DATE) ||
 551             (sqltype == SQL_C_TIME) ||
 552             (sqltype == SQL_C_TIMESTAMP))
 553         {
 554             //FIXME: you can't dynamic_cast from (void *)
 555             //wxDateTime *date = wxDynamicCast(value, wxDateTime);
 556             wxDateTime *date = (wxDateTime *)value;
 557             if (!date)
 558             {
 559                 wxFAIL_MSG (_T("Failed to convert data"));
 560                 return;
 561             }
 562             wxVariant val(date);
 563             m_rowmodified = TRUE;
 564             m_data->SetCol(m_ColInfo[col].DbCol,val);
 565         }
 566     }
 567     wxFAIL_MSG (_T("unknown column data type"));
 568     return ;
 569 }
 570
 571
 572 wxString wxDbGridTableBase::GetColLabelValue(int col)
 573 {
 574     if (GetNumberCols() > col)
 575     {
 576         return m_ColInfo[col].Title;
 577     }
 578     wxFAIL_MSG (_T("unknown column"));
 579     return wxString();
 580 }
 581
 582 bool wxDbGridTableBase::IsEmptyCell(int row, int col)
 583 {
 584     wxLogDebug(wxT("IsEmtpyCell on %i,%i"),row,col);
 585
 586     ValidateRow(row);
 587     return m_data->IsColNull(m_ColInfo[col].DbCol);
 588 }
 589
 590
 591 wxString wxDbGridTableBase::GetValue(int row, int col)
 592 {
 593     wxLogDebug(wxT("GetValue() on %i,%i"),row,col);
 594
 595     ValidateRow(row);
 596     wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 597     wxLogDebug(wxT("\tReturning \"%s\"\n"),val.GetString().c_str());
 598
 599     return val.GetString();
 600 }
 601
 602
 603 void wxDbGridTableBase::SetValue(int row, int col,const wxString& value)
 604 {
 605     wxLogDebug(wxT("SetValue() on %i,%i"),row,col);
 606
 607     ValidateRow(row);
 608     wxVariant val(value);
 609
 610     m_rowmodified = TRUE;
 611     m_data->SetCol(m_ColInfo[col].DbCol,val);
 612 }
 613
 614
 615 void wxDbGridTableBase::SetValueAsLong(int row, int col, long value)
 616 {
 617     wxLogDebug(wxT("SetValueAsLong() on %i,%i"),row,col);
 618
 619     ValidateRow(row);
 620     wxVariant val(value);
 621
 622     m_rowmodified = TRUE;
 623     m_data->SetCol(m_ColInfo[col].DbCol,val);
 624 }
 625
 626
 627 void wxDbGridTableBase::SetValueAsDouble(int row, int col, double value)
 628 {
 629     wxLogDebug(wxT("SetValueAsDouble() on %i,%i"),row,col);
 630
 631     ValidateRow(row);
 632     wxVariant val(value);
 633
 634     m_rowmodified = TRUE;
 635     m_data->SetCol(m_ColInfo[col].DbCol,val);
 636
 637 }
 638
 639
 640 void wxDbGridTableBase::SetValueAsBool(int row, int col, bool value)
 641 {
 642     wxLogDebug(wxT("SetValueAsBool() on %i,%i"),row,col);
 643
 644     ValidateRow(row);
 645     wxVariant val(value);
 646
 647     m_rowmodified = TRUE;
 648     m_data->SetCol(m_ColInfo[col].DbCol,val);
 649 }
 650
 651
 652 void wxDbGridTableBase::ValidateRow(int row)
 653 {
 654     wxLogDebug(wxT("ValidateRow(%i) currently on row (%i). Array count = %i"),row,m_row,m_keys.GetCount());
 655
 656     if (row == m_row)
 657          return;
 658     Writeback();
 659
 660     //We add to row as Count is unsigned!
 661     if ((unsigned)(row+1) > m_keys.GetCount())
 662     {
 663         wxLogDebug(wxT("\trow key unknown"));
 664         // Extend Array, iterate through data filling with keys
 665         m_data->SetRowMode(wxDbTable::WX_ROW_MODE_QUERY);
 666         int trow;
 667         for (trow = m_keys.GetCount(); trow <= row; trow++)
 668         {
 669             wxLogDebug(wxT("Fetching row %i.."), trow);
 670             bool ret = m_data->GetNext();
 671
 672             wxLogDebug(wxT(" ...success=(%i)"),ret);
 673             GenericKey k = m_data->GetKey();
 674             m_keys.Add(k);
 675         }
 676         m_row = row;
 677     }
 678     else
 679     {
 680         wxLogDebug(wxT("\trow key known centering data"));
 681         GenericKey k = m_keys.Item(row);
 682         m_data->SetRowMode(wxDbTable::WX_ROW_MODE_INDIVIDUAL);
 683         m_data->ClearMemberVars();
 684         m_data->SetKey(k);
 685         if (!m_data->QueryOnKeyFields())
 686         {
 687             wxDbLogExtendedErrorMsg("ODBC error during Query()\n\n", m_data->GetDb(),__FILE__,__LINE__);
 688         }
 689
 690         m_data->GetNext();
 691
 692         m_row = row;
 693     }
 694     m_rowmodified = FALSE;
 695 }
 696
 697 bool wxDbGridTableBase::Writeback() const
 698 {
 699     if (!m_rowmodified)
 700     {
 701         return TRUE;
 702     }
 703
 704     bool result=TRUE;
 705     wxLogDebug(wxT("\trow key unknown"));
 706
 707 // FIXME: this code requires dbtable support for record status
 708 #if 0
 709     switch (m_data->get_ModifiedStatus())
 710     {
 711         case wxDbTable::UpdatePending:
 712             result = m_data->Update();
 713            break;
 714         case wxDbTable::InsertPending:
 715             result = (m_data->Insert() == SQL_SUCCESS);
 716         break;
 717         default:
 718             //Nothing
 719         break;
 720     }
 721 #else
 722     wxLogDebug(wxT("WARNING : Row writeback not implemented "));
 723 #endif
 724     return result;
 725 }
 726
 727 #include "wx/arrimpl.cpp"
 728
 729 WX_DEFINE_EXPORTED_OBJARRAY(keyarray);
 730
 731 #endif  // #if wxUSE_NEW_GRID
 732 #endif  // #if wxUSE_ODBC
 733