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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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_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 // DLL options compatibility check:
  37 #include "wx/app.h"
  38 WX_CHECK_BUILD_OPTIONS("wxDbGrid")
  39
  40
  41 wxDbGridCellAttrProvider::wxDbGridCellAttrProvider()
  42 {
  43     m_data=NULL;
  44     m_ColInfo=NULL;
  45 }
  46
  47 wxDbGridCellAttrProvider::wxDbGridCellAttrProvider(wxDbTable *tab, wxDbGridColInfoBase* ColInfo)
  48 {
  49     m_data=tab;
  50     m_ColInfo=ColInfo;
  51 }
  52
  53 wxDbGridCellAttrProvider::~wxDbGridCellAttrProvider()
  54 {
  55 }
  56
  57 wxGridCellAttr *wxDbGridCellAttrProvider::GetAttr(int row, int col,
  58                                       wxGridCellAttr::wxAttrKind  kind) const
  59 {
  60     wxGridCellAttr *attr = wxGridCellAttrProvider::GetAttr(row,col,kind);
  61
  62     if (m_data && m_ColInfo && (m_data->GetNumberOfColumns() > m_ColInfo[col].DbCol))
  63     {
  64         //FIXME: this test could.
  65         //  ??::InsertPending == m_data->get_ModifiedStatus()
  66         //  and if InsertPending use colDef[].InsertAllowed
  67         if (!(m_data->GetColDefs()[(m_ColInfo[col].DbCol)].Updateable))
  68         {
  69             switch(kind)
  70             {
  71                 case (wxGridCellAttr::Any):
  72                     if (!attr)
  73                     {
  74                         attr = new wxGridCellAttr;
  75                         // Store so we don't keep creating / deleting this...
  76                         wxDbGridCellAttrProvider * self = wxConstCast(this, wxDbGridCellAttrProvider) ;
  77                         attr->IncRef();
  78                         self->SetColAttr(attr, col);
  79                         attr->SetReadOnly();
  80                     }
  81                     else
  82                     {
  83                         //We now must check what we were returned. and do the right thing (tm)
  84                         wxGridCellAttr::wxAttrKind attrkind = attr->GetKind();
  85                         if ((attrkind == (wxGridCellAttr::Default)) || (attrkind == (wxGridCellAttr::Cell)) ||
  86                             (attrkind == (wxGridCellAttr::Col)))
  87                         {
  88                                 wxGridCellAttr *attrtomerge = attr;
  89                                 attr = new wxGridCellAttr;
  90                                 attr->SetKind(wxGridCellAttr::Merged);
  91                                 attr->MergeWith(attrtomerge);
  92                                 attr->SetReadOnly();
  93                                 attrtomerge->DecRef();
  94                         }
  95                         attr->SetReadOnly();
  96                     }
  97                 break;
  98                 case (wxGridCellAttr::Col):
  99                     //As we must have a Coll, and were setting Coll attributes
 100                     // we can based on wxdbTable's so just set RO if attr valid
 101                     if (!attr)
 102                     {
 103                         attr = new wxGridCellAttr;
 104                         wxDbGridCellAttrProvider * self = wxConstCast(this, wxDbGridCellAttrProvider) ;
 105                         attr->IncRef();
 106                         self->SetColAttr(attr, col);
 107                     }
 108                     attr->SetReadOnly();
 109                 break;
 110                 default:
 111                     //Dont add RO for...
 112                     //  wxGridCellAttr::Cell - Not required, will inherit on merge from row.
 113                     //  wxGridCellAttr::Row - If wxDbtable ever supports row locking could add
 114                     //                        support to make RO on a row basis also.
 115                     //  wxGridCellAttr::Default - Don't edit this ! or all cell with a attr will become readonly
 116                     //  wxGridCellAttr::Merged - This should never be asked for.
 117                 break;
 118             }
 119         }
 120
 121     }
 122     return attr;
 123 }
 124
 125 void wxDbGridCellAttrProvider::AssignDbTable(wxDbTable *tab)
 126 {
 127     m_data = tab;
 128 }
 129
 130 wxDbGridTableBase::wxDbGridTableBase(wxDbTable *tab, wxDbGridColInfo*  ColInfo,
 131                      int count, bool takeOwnership)  :
 132     m_keys(),
 133     m_data(tab),
 134     m_dbowner(takeOwnership),
 135     m_rowmodified(false)
 136 {
 137
 138     if (count == wxUSE_QUERY)
 139     {
 140         m_rowtotal = m_data ? m_data->Count() : 0;
 141     }
 142     else
 143     {
 144         m_rowtotal = count;
 145     }
 146 //    m_keys.Size(m_rowtotal);
 147     m_row = -1;
 148     if (ColInfo)
 149     {
 150         m_nocols = ColInfo->Length();
 151         m_ColInfo = new wxDbGridColInfoBase[m_nocols];
 152         //Do Copy.
 153         wxDbGridColInfo *ptr = ColInfo;
 154         int i =0;
 155         while (ptr && i < m_nocols)
 156         {
 157             m_ColInfo[i] = ptr->m_data;
 158             ptr = ptr->m_next;
 159             i++;
 160         }
 161 #ifdef __WXDEBUG__
 162         if (ptr)
 163         {
 164             wxLogDebug(wxT("NoCols over length after traversing %i items"),i);
 165         }
 166         if (i < m_nocols)
 167         {
 168             wxLogDebug(wxT("NoCols under length after traversing %i items"),i);
 169         }
 170 #endif
 171     }
 172 }
 173
 174 wxDbGridTableBase::~wxDbGridTableBase()
 175 {
 176     wxDbGridCellAttrProvider *provider;
 177
 178     //Can't check for update here as
 179
 180     //FIXME: should i remove m_ColInfo and m_data from m_attrProvider if a wxDbGridAttrProvider
 181 //    if ((provider = dynamic_cast<wxDbGridCellAttrProvider *>(GetAttrProvider())))
 182      // Using C casting for now until we can support dynamic_cast with wxWidgets
 183     provider = (wxDbGridCellAttrProvider *)(GetAttrProvider());
 184     if (provider)
 185     {
 186         provider->AssignDbTable(NULL);
 187     }
 188     delete [] m_ColInfo;
 189
 190     Writeback();
 191     if (m_dbowner)
 192     {
 193         delete m_data;
 194     }
 195 }
 196
 197 bool wxDbGridTableBase::CanHaveAttributes()
 198 {
 199     if (!GetAttrProvider())
 200     {
 201         // use the default attr provider by default
 202         SetAttrProvider(new wxDbGridCellAttrProvider(m_data, m_ColInfo));
 203     }
 204     return true;
 205 }
 206
 207
 208 bool wxDbGridTableBase::AssignDbTable(wxDbTable *tab, int count, bool takeOwnership)
 209 {
 210     wxDbGridCellAttrProvider *provider;
 211
 212     //Remove Information from grid about old data
 213     if (GetView())
 214     {
 215         wxGrid *grid = GetView();
 216         grid->BeginBatch();
 217         grid->ClearSelection();
 218         if (grid->IsCellEditControlEnabled())
 219         {
 220             grid->DisableCellEditControl();
 221         }
 222         wxGridTableMessage msg(this, wxGRIDTABLE_NOTIFY_ROWS_DELETED,0,m_rowtotal);
 223         grid->ProcessTableMessage(msg);
 224     }
 225
 226     //reset our internals...
 227     Writeback();
 228     if (m_dbowner)
 229     {
 230         delete m_data;
 231     }
 232     m_keys.Empty();
 233     m_data = tab;
 234     //FIXME: Remove dynamic_cast before sumision to wxwin
 235 //    if ((provider = dynamic_cast<wxDbGridCellAttrProvider *> (GetAttrProvider())))
 236      // Using C casting for now until we can support dynamic_cast with wxWidgets
 237     provider = (wxDbGridCellAttrProvider *)(GetAttrProvider());
 238     if (provider)
 239     {
 240         provider->AssignDbTable(m_data);
 241     }
 242
 243     if (count == wxUSE_QUERY)
 244     {
 245         m_rowtotal = m_data ? m_data->Count() : 0;
 246     }
 247     else
 248     {
 249          m_rowtotal = count;
 250     }
 251     m_row = -1;
 252
 253     //Add Information to grid about new data
 254     if (GetView())
 255     {
 256         wxGrid * grid = GetView();
 257         wxGridTableMessage msg(this, wxGRIDTABLE_NOTIFY_ROWS_APPENDED, m_rowtotal);
 258         grid->ProcessTableMessage(msg);
 259         grid->EndBatch();
 260     }
 261     m_dbowner = takeOwnership;
 262     m_rowmodified = false;
 263     return true;
 264 }
 265
 266 wxString wxDbGridTableBase::GetTypeName(int WXUNUSED(row), int col)
 267 {
 268     if (GetNumberCols() > col)
 269     {
 270         if (m_ColInfo[col].wxtypename == wxGRID_VALUE_DBAUTO)
 271         {
 272             if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 273             {
 274                 wxFAIL_MSG (_T("You can not use wxGRID_VALUE_DBAUTO for virtual columns"));
 275             }
 276             switch(m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype)
 277             {
 278                 case SQL_C_CHAR:
 279 #ifndef __UNIX__
 280                 case SQL_C_WCHAR:
 281 #endif
 282                     return wxGRID_VALUE_STRING;
 283                 case SQL_C_SHORT:
 284                 case SQL_C_SSHORT:
 285                     return wxGRID_VALUE_NUMBER;
 286                 case SQL_C_USHORT:
 287                     return wxGRID_VALUE_NUMBER;
 288                 case SQL_C_LONG:
 289                 case SQL_C_SLONG:
 290                     return wxGRID_VALUE_NUMBER;
 291                 case SQL_C_ULONG:
 292                     return wxGRID_VALUE_NUMBER;
 293                 case SQL_C_FLOAT:
 294                     return wxGRID_VALUE_FLOAT;
 295                 case SQL_C_DOUBLE:
 296                     return wxGRID_VALUE_FLOAT;
 297                 case SQL_C_DATE:
 298                     return wxGRID_VALUE_DATETIME;
 299                 case SQL_C_TIME:
 300                     return wxGRID_VALUE_DATETIME;
 301                 case SQL_C_TIMESTAMP:
 302                     return wxGRID_VALUE_DATETIME;
 303                 default:
 304                     return wxGRID_VALUE_STRING;
 305             }
 306         }
 307         else
 308         {
 309             return m_ColInfo[col].wxtypename;
 310         }
 311     }
 312     wxFAIL_MSG (_T("unknown column"));
 313     return wxString();
 314 }
 315
 316 bool wxDbGridTableBase::CanGetValueAs(int row, int col, const wxString& typeName)
 317 {
 318     wxLogDebug(wxT("CanGetValueAs() on %i,%i"),row,col);
 319     //Is this needed? As it will be validated on GetValueAsXXXX
 320     ValidateRow(row);
 321
 322     if (typeName == wxGRID_VALUE_STRING)
 323     {
 324         //FIXME ummm What about blob field etc.
 325         return true;
 326     }
 327
 328     if (m_data->IsColNull((UWORD)m_ColInfo[col].DbCol))
 329     {
 330         return false;
 331     }
 332
 333     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 334     {
 335         //If a virtual column then we can't find it's type. we have to
 336         // return false to get using wxVariant.
 337         return false;
 338     }
 339     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 340
 341     if (typeName == wxGRID_VALUE_DATETIME)
 342     {
 343         if ((sqltype == SQL_C_DATE) ||
 344             (sqltype == SQL_C_TIME) ||
 345             (sqltype == SQL_C_TIMESTAMP))
 346         {
 347             return true;
 348         }
 349         return false;
 350     }
 351     if (typeName == wxGRID_VALUE_NUMBER)
 352     {
 353         if ((sqltype == SQL_C_SSHORT) ||
 354             (sqltype == SQL_C_USHORT) ||
 355             (sqltype == SQL_C_SLONG)  ||
 356             (sqltype == SQL_C_ULONG))
 357         {
 358             return true;
 359         }
 360         return false;
 361     }
 362     if (typeName == wxGRID_VALUE_FLOAT)
 363     {
 364         if ((sqltype == SQL_C_SSHORT) ||
 365             (sqltype == SQL_C_USHORT) ||
 366             (sqltype == SQL_C_SLONG)  ||
 367             (sqltype == SQL_C_ULONG)  ||
 368             (sqltype == SQL_C_FLOAT)  ||
 369             (sqltype == SQL_C_DOUBLE))
 370         {
 371             return true;
 372         }
 373         return false;
 374     }
 375     return false;
 376 }
 377
 378 bool wxDbGridTableBase::CanSetValueAs(int WXUNUSED(row), int col, const wxString& typeName)
 379 {
 380     if (typeName == wxGRID_VALUE_STRING)
 381     {
 382         //FIXME ummm What about blob field etc.
 383         return true;
 384     }
 385
 386     if (!(m_data->GetColDefs()[(m_ColInfo[col].DbCol)].Updateable))
 387     {
 388         return false;
 389     }
 390
 391     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 392     {
 393         //If a virtual column then we can't find it's type. we have to faulse to
 394         //get using wxVairent.
 395         return false;
 396     }
 397
 398     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 399     if (typeName == wxGRID_VALUE_DATETIME)
 400     {
 401         if ((sqltype == SQL_C_DATE) ||
 402             (sqltype == SQL_C_TIME) ||
 403             (sqltype == SQL_C_TIMESTAMP))
 404         {
 405             return true;
 406         }
 407         return false;
 408     }
 409     if (typeName == wxGRID_VALUE_NUMBER)
 410     {
 411         if ((sqltype == SQL_C_SSHORT) ||
 412             (sqltype == SQL_C_USHORT) ||
 413             (sqltype == SQL_C_SLONG)  ||
 414             (sqltype == SQL_C_ULONG))
 415         {
 416             return true;
 417         }
 418         return false;
 419     }
 420     if (typeName == wxGRID_VALUE_FLOAT)
 421     {
 422         if ((sqltype == SQL_C_SSHORT) ||
 423             (sqltype == SQL_C_USHORT) ||
 424             (sqltype == SQL_C_SLONG)  ||
 425             (sqltype == SQL_C_ULONG)  ||
 426             (sqltype == SQL_C_FLOAT)  ||
 427             (sqltype == SQL_C_DOUBLE))
 428         {
 429             return true;
 430         }
 431         return false;
 432     }
 433     return false;
 434 }
 435
 436 long wxDbGridTableBase::GetValueAsLong(int row, int col)
 437 {
 438     ValidateRow(row);
 439
 440     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 441     {
 442         wxFAIL_MSG (_T("You can not use GetValueAsLong for virtual columns"));
 443         return 0;
 444     }
 445     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 446     if ((sqltype == SQL_C_SSHORT) ||
 447         (sqltype == SQL_C_USHORT) ||
 448         (sqltype == SQL_C_SLONG) ||
 449         (sqltype == SQL_C_ULONG))
 450     {
 451         wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 452         return val.GetLong();
 453     }
 454     wxFAIL_MSG (_T("unknown column, "));
 455     return 0;
 456 }
 457
 458 double wxDbGridTableBase::GetValueAsDouble(int row, int col)
 459 {
 460     wxLogDebug(wxT("GetValueAsDouble() on %i,%i"),row,col);
 461     ValidateRow(row);
 462
 463     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 464     {
 465         wxFAIL_MSG (_T("You can not use GetValueAsDouble for virtual columns"));
 466         return 0.0;
 467     }
 468     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 469     if ((sqltype == SQL_C_SSHORT) ||
 470         (sqltype == SQL_C_USHORT) ||
 471         (sqltype == SQL_C_SLONG) ||
 472         (sqltype == SQL_C_ULONG) ||
 473         (sqltype == SQL_C_FLOAT) ||
 474         (sqltype == SQL_C_DOUBLE))
 475     {
 476         wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 477         return val.GetDouble();
 478     }
 479     wxFAIL_MSG (_T("unknown column"));
 480     return 0.0;
 481 }
 482
 483 bool wxDbGridTableBase::GetValueAsBool(int row, int col)
 484 {
 485     wxLogDebug(wxT("GetValueAsBool() on %i,%i"),row,col);
 486     ValidateRow(row);
 487
 488     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 489     {
 490         wxFAIL_MSG (_T("You can not use GetValueAsBool for virtual columns"));
 491         return 0;
 492     }
 493     int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 494     if ((sqltype == SQL_C_SSHORT) ||
 495         (sqltype == SQL_C_USHORT) ||
 496         (sqltype == SQL_C_SLONG) ||
 497         (sqltype == SQL_C_ULONG))
 498     {
 499         wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 500         return val.GetBool();
 501     }
 502     wxFAIL_MSG (_T("unknown column, "));
 503     return 0;
 504 }
 505
 506 void* wxDbGridTableBase::GetValueAsCustom(int row, int col, const wxString& typeName)
 507 {
 508     wxLogDebug(wxT("GetValueAsCustom() on %i,%i"),row,col);
 509     ValidateRow(row);
 510
 511     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 512     {
 513         wxFAIL_MSG (_T("You can not use GetValueAsCustom for virtual columns"));
 514         return NULL;
 515     }
 516     if (m_data->IsColNull((UWORD)m_ColInfo[col].DbCol))
 517         return NULL;
 518
 519     if (typeName == wxGRID_VALUE_DATETIME)
 520     {
 521         wxDbColDef *pColDefs = m_data->GetColDefs();
 522         int sqltype = pColDefs[(m_ColInfo[col].DbCol)].SqlCtype;
 523
 524         if ((sqltype == SQL_C_DATE) ||
 525             (sqltype == SQL_C_TIME) ||
 526             (sqltype == SQL_C_TIMESTAMP))
 527         {
 528             wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 529             return new wxDateTime(val.GetDateTime());
 530         }
 531     }
 532     wxFAIL_MSG (_T("unknown column data type "));
 533     return NULL;
 534 }
 535
 536
 537 void wxDbGridTableBase::SetValueAsCustom(int row, int col, const wxString& typeName, void* value)
 538 {
 539     wxLogDebug(wxT("SetValueAsCustom() on %i,%i"),row,col);
 540     ValidateRow(row);
 541
 542     if (m_data->GetNumberOfColumns() <= m_ColInfo[col].DbCol)
 543     {
 544         wxFAIL_MSG (_T("You can not use SetValueAsCustom for virtual columns"));
 545         return;
 546     }
 547
 548     if (typeName == wxGRID_VALUE_DATETIME)
 549     {
 550         int sqltype = m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype;
 551         if ((sqltype == SQL_C_DATE) ||
 552             (sqltype == SQL_C_TIME) ||
 553             (sqltype == SQL_C_TIMESTAMP))
 554         {
 555             //FIXME: you can't dynamic_cast from (void *)
 556             //wxDateTime *date = wxDynamicCast(value, wxDateTime);
 557             wxDateTime *date = (wxDateTime *)value;
 558             if (!date)
 559             {
 560                 wxFAIL_MSG (_T("Failed to convert data"));
 561                 return;
 562             }
 563             wxVariant val(date);
 564             m_rowmodified = true;
 565             m_data->SetCol(m_ColInfo[col].DbCol,val);
 566         }
 567     }
 568     wxFAIL_MSG (_T("unknown column data type"));
 569     return ;
 570 }
 571
 572
 573 wxString wxDbGridTableBase::GetColLabelValue(int col)
 574 {
 575     if (GetNumberCols() > col)
 576     {
 577         return m_ColInfo[col].Title;
 578     }
 579     wxFAIL_MSG (_T("unknown column"));
 580     return wxString();
 581 }
 582
 583 bool wxDbGridTableBase::IsEmptyCell(int row, int col)
 584 {
 585     wxLogDebug(wxT("IsEmtpyCell on %i,%i"),row,col);
 586
 587     ValidateRow(row);
 588     return m_data->IsColNull((UWORD)m_ColInfo[col].DbCol);
 589 }
 590
 591
 592 wxString wxDbGridTableBase::GetValue(int row, int col)
 593 {
 594     wxLogDebug(wxT("GetValue() on %i,%i"),row,col);
 595
 596     ValidateRow(row);
 597     wxVariant val = m_data->GetCol(m_ColInfo[col].DbCol);
 598     wxLogDebug(wxT("\tReturning \"%s\"\n"),val.GetString().c_str());
 599
 600     return val.GetString();
 601 }
 602
 603
 604 void wxDbGridTableBase::SetValue(int row, int col,const wxString& value)
 605 {
 606     wxLogDebug(wxT("SetValue() on %i,%i"),row,col);
 607
 608     ValidateRow(row);
 609     wxVariant val(value);
 610
 611     m_rowmodified = true;
 612     m_data->SetCol(m_ColInfo[col].DbCol,val);
 613 }
 614
 615
 616 void wxDbGridTableBase::SetValueAsLong(int row, int col, long value)
 617 {
 618     wxLogDebug(wxT("SetValueAsLong() on %i,%i"),row,col);
 619
 620     ValidateRow(row);
 621     wxVariant val(value);
 622
 623     m_rowmodified = true;
 624     m_data->SetCol(m_ColInfo[col].DbCol,val);
 625 }
 626
 627
 628 void wxDbGridTableBase::SetValueAsDouble(int row, int col, double value)
 629 {
 630     wxLogDebug(wxT("SetValueAsDouble() on %i,%i"),row,col);
 631
 632     ValidateRow(row);
 633     wxVariant val(value);
 634
 635     m_rowmodified = true;
 636     m_data->SetCol(m_ColInfo[col].DbCol,val);
 637
 638 }
 639
 640
 641 void wxDbGridTableBase::SetValueAsBool(int row, int col, bool value)
 642 {
 643     wxLogDebug(wxT("SetValueAsBool() on %i,%i"),row,col);
 644
 645     ValidateRow(row);
 646     wxVariant val(value);
 647
 648     m_rowmodified = true;
 649     m_data->SetCol(m_ColInfo[col].DbCol,val);
 650 }
 651
 652
 653 void wxDbGridTableBase::ValidateRow(int row)
 654 {
 655     wxLogDebug(wxT("ValidateRow(%i) currently on row (%i). Array count = %i"),row,m_row,m_keys.GetCount());
 656
 657     if (row == m_row)
 658          return;
 659     Writeback();
 660
 661     //We add to row as Count is unsigned!
 662     if ((unsigned)(row+1) > m_keys.GetCount())
 663     {
 664         wxLogDebug(wxT("\trow key unknown"));
 665         // Extend Array, iterate through data filling with keys
 666         m_data->SetRowMode(wxDbTable::WX_ROW_MODE_QUERY);
 667         int trow;
 668         for (trow = m_keys.GetCount(); trow <= row; trow++)
 669         {
 670             wxLogDebug(wxT("Fetching row %i.."), trow);
 671             bool ret = m_data->GetNext();
 672
 673             wxLogDebug(wxT(" ...success=(%i)"),ret);
 674             GenericKey k = m_data->GetKey();
 675             m_keys.Add(k);
 676         }
 677         m_row = row;
 678     }
 679     else
 680     {
 681         wxLogDebug(wxT("\trow key known centering data"));
 682         GenericKey k = m_keys.Item(row);
 683         m_data->SetRowMode(wxDbTable::WX_ROW_MODE_INDIVIDUAL);
 684         m_data->ClearMemberVars();
 685         m_data->SetKey(k);
 686         if (!m_data->QueryOnKeyFields())
 687         {
 688             wxDbLogExtendedErrorMsg(_T("ODBC error during Query()\n\n"), m_data->GetDb(),__TFILE__,__LINE__);
 689         }
 690
 691         m_data->GetNext();
 692
 693         m_row = row;
 694     }
 695     m_rowmodified = false;
 696 }
 697
 698 bool wxDbGridTableBase::Writeback() const
 699 {
 700     if (!m_rowmodified)
 701     {
 702         return true;
 703     }
 704
 705     bool result=true;
 706     wxLogDebug(wxT("\trow key unknown"));
 707
 708 // FIXME: this code requires dbtable support for record status
 709 #if 0
 710     switch (m_data->get_ModifiedStatus())
 711     {
 712         case wxDbTable::UpdatePending:
 713             result = m_data->Update();
 714            break;
 715         case wxDbTable::InsertPending:
 716             result = (m_data->Insert() == SQL_SUCCESS);
 717         break;
 718         default:
 719             //Nothing
 720         break;
 721     }
 722 #else
 723     wxLogDebug(wxT("WARNING : Row writeback not implemented "));
 724 #endif
 725     return result;
 726 }
 727
 728 #include "wx/arrimpl.cpp"
 729
 730 WX_DEFINE_EXPORTED_OBJARRAY(keyarray);
 731
 732 #endif  // #if wxUSE_GRID
 733 #endif  // #if wxUSE_ODBC
 734