Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 :
21 : #include "formlinkdialog.hxx"
22 :
23 : #include "modulepcr.hxx"
24 : #include "formresid.hrc"
25 : #include "formstrings.hxx"
26 : #include <sal/log.hxx>
27 : #include <vcl/combobox.hxx>
28 : #include <vcl/msgbox.hxx>
29 : #include <vcl/waitobj.hxx>
30 : #include <vcl/tabpage.hxx>
31 : #include <vcl/layout.hxx>
32 : #include <vcl/builderfactory.hxx>
33 : #include <svtools/localresaccess.hxx>
34 : #include <connectivity/dbtools.hxx>
35 : #include <connectivity/dbexception.hxx>
36 : #include <toolkit/helper/vclunohelper.hxx>
37 : #include <comphelper/processfactory.hxx>
38 :
39 : #include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
40 : #include <com/sun/star/sdbcx/XKeysSupplier.hpp>
41 : #include <com/sun/star/sdbcx/KeyType.hpp>
42 : #include <com/sun/star/container/XNameAccess.hpp>
43 : #include <com/sun/star/sdbcx/XTablesSupplier.hpp>
44 : #include <com/sun/star/sdbc/XRowSet.hpp>
45 : #include <com/sun/star/sdb/CommandType.hpp>
46 : #include <com/sun/star/sdb/SQLContext.hpp>
47 :
48 :
49 :
50 : namespace pcr
51 : {
52 :
53 :
54 : using namespace ::com::sun::star::uno;
55 : using namespace ::com::sun::star::lang;
56 : using namespace ::com::sun::star::form;
57 : using namespace ::com::sun::star::sdb;
58 : using namespace ::com::sun::star::sdbc;
59 : using namespace ::com::sun::star::sdbcx;
60 : using namespace ::com::sun::star::beans;
61 : using namespace ::com::sun::star::container;
62 :
63 :
64 : //= FieldLinkRow
65 :
66 : class FieldLinkRow : public TabPage
67 : {
68 : private:
69 : VclPtr<ComboBox> m_pDetailColumn;
70 : VclPtr<ComboBox> m_pMasterColumn;
71 :
72 : Link<> m_aLinkChangeHandler;
73 :
74 : public:
75 : FieldLinkRow( vcl::Window* _pParent );
76 : virtual ~FieldLinkRow();
77 : virtual void dispose() SAL_OVERRIDE;
78 :
79 0 : inline void SetLinkChangeHandler( const Link<>& _rHdl ) { m_aLinkChangeHandler = _rHdl; }
80 :
81 : enum LinkParticipant
82 : {
83 : eDetailField,
84 : eMasterField
85 : };
86 : /** retrieves the selected field name for either the master or the detail field
87 : @return <TRUE/> if and only a valid field is selected
88 : */
89 : bool GetFieldName( LinkParticipant _eWhich, OUString& /* [out] */ _rName ) const;
90 : void SetFieldName( LinkParticipant _eWhich, const OUString& _rName );
91 :
92 : void fillList( LinkParticipant _eWhich, const Sequence< OUString >& _rFieldNames );
93 :
94 : private:
95 : DECL_LINK( OnFieldNameChanged, ComboBox* );
96 : };
97 :
98 :
99 0 : FieldLinkRow::FieldLinkRow( vcl::Window* _pParent )
100 0 : :TabPage( _pParent, "FieldLinkRow", "modules/spropctrlr/ui/fieldlinkrow.ui" )
101 : {
102 0 : get(m_pDetailColumn, "detailCombobox");
103 0 : get(m_pMasterColumn, "masterCombobox");
104 :
105 0 : m_pDetailColumn->SetDropDownLineCount( 10 );
106 0 : m_pMasterColumn->SetDropDownLineCount( 10 );
107 :
108 0 : m_pDetailColumn->SetModifyHdl( LINK( this, FieldLinkRow, OnFieldNameChanged ) );
109 0 : m_pMasterColumn->SetModifyHdl( LINK( this, FieldLinkRow, OnFieldNameChanged ) );
110 0 : }
111 :
112 0 : FieldLinkRow::~FieldLinkRow()
113 : {
114 0 : disposeOnce();
115 0 : }
116 :
117 0 : void FieldLinkRow::dispose()
118 : {
119 0 : m_pDetailColumn.clear();
120 0 : m_pMasterColumn.clear();
121 0 : TabPage::dispose();
122 0 : }
123 :
124 0 : void FieldLinkRow::fillList( LinkParticipant _eWhich, const Sequence< OUString >& _rFieldNames )
125 : {
126 0 : ComboBox* pBox = ( _eWhich == eDetailField ) ? m_pDetailColumn : m_pMasterColumn;
127 :
128 0 : const OUString* pFieldName = _rFieldNames.getConstArray();
129 0 : const OUString* pFieldNameEnd = pFieldName + _rFieldNames.getLength();
130 0 : for ( ; pFieldName != pFieldNameEnd; ++pFieldName )
131 0 : pBox->InsertEntry( *pFieldName );
132 0 : }
133 :
134 :
135 0 : bool FieldLinkRow::GetFieldName( LinkParticipant _eWhich, OUString& /* [out] */ _rName ) const
136 : {
137 0 : const ComboBox* pBox = ( _eWhich == eDetailField ) ? m_pDetailColumn : m_pMasterColumn;
138 0 : _rName = pBox->GetText();
139 0 : return !_rName.isEmpty();
140 : }
141 :
142 :
143 0 : void FieldLinkRow::SetFieldName( LinkParticipant _eWhich, const OUString& _rName )
144 : {
145 0 : ComboBox* pBox = ( _eWhich == eDetailField ) ? m_pDetailColumn : m_pMasterColumn;
146 0 : pBox->SetText( _rName );
147 0 : }
148 :
149 :
150 0 : IMPL_LINK( FieldLinkRow, OnFieldNameChanged, ComboBox*, /*_pBox*/ )
151 : {
152 0 : if ( m_aLinkChangeHandler.IsSet() )
153 0 : return m_aLinkChangeHandler.Call( this );
154 :
155 0 : return 0L;
156 : }
157 :
158 0 : VCL_BUILDER_FACTORY(FieldLinkRow)
159 :
160 : //= FormLinkDialog
161 :
162 0 : FormLinkDialog::FormLinkDialog( vcl::Window* _pParent, const Reference< XPropertySet >& _rxDetailForm,
163 : const Reference< XPropertySet >& _rxMasterForm, const Reference< XComponentContext >& _rxContext,
164 : const OUString& _sExplanation,
165 : const OUString& _sDetailLabel,
166 : const OUString& _sMasterLabel)
167 : :ModalDialog( _pParent, "FormLinks", "modules/spropctrlr/ui/formlinksdialog.ui" )
168 0 : ,m_aRow1 ( VclPtr<FieldLinkRow>::Create( get<VclVBox>("box") ) )
169 0 : ,m_aRow2 ( VclPtr<FieldLinkRow>::Create( get<VclVBox>("box") ) )
170 0 : ,m_aRow3 ( VclPtr<FieldLinkRow>::Create( get<VclVBox>("box") ) )
171 0 : ,m_aRow4 ( VclPtr<FieldLinkRow>::Create( get<VclVBox>("box") ) )
172 : ,m_xContext ( _rxContext )
173 : ,m_xDetailForm( _rxDetailForm )
174 : ,m_xMasterForm( _rxMasterForm )
175 : ,m_sDetailLabel(_sDetailLabel)
176 0 : ,m_sMasterLabel(_sMasterLabel)
177 : {
178 0 : get(m_pExplanation, "explanationLabel");
179 0 : get(m_pDetailLabel, "detailLabel");
180 0 : get(m_pMasterLabel, "masterLabel");
181 0 : get(m_pOK, "ok");
182 0 : get(m_pSuggest, "suggestButton");
183 0 : m_aRow1->Show();
184 0 : m_aRow2->Show();
185 0 : m_aRow3->Show();
186 0 : m_aRow4->Show();
187 0 : set_width_request(600);
188 :
189 0 : if ( !_sExplanation.isEmpty() )
190 0 : m_pExplanation->SetText(_sExplanation);
191 :
192 0 : m_pSuggest->SetClickHdl ( LINK( this, FormLinkDialog, OnSuggest ) );
193 0 : m_aRow1->SetLinkChangeHandler( LINK( this, FormLinkDialog, OnFieldChanged ) );
194 0 : m_aRow2->SetLinkChangeHandler( LINK( this, FormLinkDialog, OnFieldChanged ) );
195 0 : m_aRow3->SetLinkChangeHandler( LINK( this, FormLinkDialog, OnFieldChanged ) );
196 0 : m_aRow4->SetLinkChangeHandler( LINK( this, FormLinkDialog, OnFieldChanged ) );
197 :
198 0 : PostUserEvent( LINK( this, FormLinkDialog, OnInitialize ), NULL, true );
199 :
200 0 : updateOkButton();
201 0 : }
202 :
203 :
204 0 : FormLinkDialog::~FormLinkDialog( )
205 : {
206 0 : disposeOnce();
207 0 : }
208 :
209 0 : void FormLinkDialog::dispose( )
210 : {
211 0 : m_pExplanation.clear();
212 0 : m_pDetailLabel.clear();
213 0 : m_pMasterLabel.clear();
214 0 : m_pOK.clear();
215 0 : m_pSuggest.clear();
216 :
217 0 : m_aRow1.disposeAndClear();
218 0 : m_aRow2.disposeAndClear();
219 0 : m_aRow3.disposeAndClear();
220 0 : m_aRow4.disposeAndClear();
221 :
222 0 : ModalDialog::dispose();
223 0 : }
224 :
225 0 : void FormLinkDialog::commitLinkPairs()
226 : {
227 : // collect the field lists from the rows
228 0 : ::std::vector< OUString > aDetailFields; aDetailFields.reserve( 4 );
229 0 : ::std::vector< OUString > aMasterFields; aMasterFields.reserve( 4 );
230 :
231 : const FieldLinkRow* aRows[] = {
232 0 : m_aRow1.get(), m_aRow2.get(), m_aRow3.get(), m_aRow4.get()
233 0 : };
234 :
235 0 : for ( sal_Int32 i = 0; i < 4; ++i )
236 : {
237 0 : OUString sDetailField, sMasterField;
238 0 : aRows[ i ]->GetFieldName( FieldLinkRow::eDetailField, sDetailField );
239 0 : aRows[ i ]->GetFieldName( FieldLinkRow::eMasterField, sMasterField );
240 0 : if ( sDetailField.isEmpty() && sMasterField.isEmpty() )
241 0 : continue;
242 :
243 0 : aDetailFields.push_back( sDetailField );
244 0 : aMasterFields.push_back( sMasterField );
245 0 : }
246 :
247 : // and set as property values
248 : try
249 : {
250 0 : Reference< XPropertySet > xDetailFormProps( m_xDetailForm, UNO_QUERY );
251 0 : if ( xDetailFormProps.is() )
252 : {
253 0 : xDetailFormProps->setPropertyValue( PROPERTY_DETAILFIELDS, makeAny( Sequence< OUString >( aDetailFields.data(), aDetailFields.size() ) ) );
254 0 : xDetailFormProps->setPropertyValue( PROPERTY_MASTERFIELDS, makeAny( Sequence< OUString >( aMasterFields.data(), aMasterFields.size() ) ) );
255 0 : }
256 : }
257 0 : catch( const Exception& )
258 : {
259 : OSL_FAIL( "FormLinkDialog::commitLinkPairs: caught an exception while setting the properties!" );
260 0 : }
261 0 : }
262 :
263 :
264 0 : short FormLinkDialog::Execute()
265 : {
266 0 : short nResult = ModalDialog::Execute();
267 :
268 0 : if ( RET_OK == nResult )
269 0 : commitLinkPairs();
270 :
271 0 : return nResult;
272 : }
273 :
274 :
275 0 : void FormLinkDialog::initializeFieldLists()
276 : {
277 0 : Sequence< OUString > sDetailFields;
278 0 : getFormFields( m_xDetailForm, sDetailFields );
279 :
280 0 : Sequence< OUString > sMasterFields;
281 0 : getFormFields( m_xMasterForm, sMasterFields );
282 :
283 : FieldLinkRow* aRows[] = {
284 0 : m_aRow1.get(), m_aRow2.get(), m_aRow3.get(), m_aRow4.get()
285 0 : };
286 0 : for ( sal_Int32 i = 0; i < 4 ; ++i )
287 : {
288 0 : aRows[i]->fillList( FieldLinkRow::eDetailField, sDetailFields );
289 0 : aRows[i]->fillList( FieldLinkRow::eMasterField, sMasterFields );
290 0 : }
291 :
292 0 : }
293 :
294 :
295 0 : void FormLinkDialog::initializeColumnLabels()
296 : {
297 : // label for the detail form
298 0 : OUString sDetailType = getFormDataSourceType( m_xDetailForm );
299 0 : if ( sDetailType.isEmpty() )
300 : {
301 0 : if ( m_sDetailLabel.isEmpty() )
302 : {
303 0 : m_sDetailLabel = PcrRes(STR_DETAIL_FORM).toString();
304 : }
305 0 : sDetailType = m_sDetailLabel;
306 : }
307 0 : m_pDetailLabel->SetText( sDetailType );
308 :
309 : // label for the master form
310 0 : OUString sMasterType = getFormDataSourceType( m_xMasterForm );
311 0 : if ( sMasterType.isEmpty() )
312 : {
313 0 : if ( m_sMasterLabel.isEmpty() )
314 : {
315 0 : m_sMasterLabel = PcrRes(STR_MASTER_FORM).toString();
316 : }
317 0 : sMasterType = m_sMasterLabel;
318 : }
319 0 : m_pMasterLabel->SetText( sMasterType );
320 0 : }
321 :
322 :
323 0 : void FormLinkDialog::initializeFieldRowsFrom( Sequence< OUString >& _rDetailFields, Sequence< OUString >& _rMasterFields )
324 : {
325 : // our UI does allow 4 fields max
326 0 : _rDetailFields.realloc( 4 );
327 0 : _rMasterFields.realloc( 4 );
328 :
329 0 : const OUString* pDetailFields = _rDetailFields.getConstArray();
330 0 : const OUString* pMasterFields = _rMasterFields.getConstArray();
331 :
332 : FieldLinkRow* aRows[] = {
333 0 : m_aRow1.get(), m_aRow2.get(), m_aRow3.get(), m_aRow4.get()
334 0 : };
335 0 : for ( sal_Int32 i = 0; i < 4; ++i, ++pDetailFields, ++pMasterFields )
336 : {
337 0 : aRows[ i ]->SetFieldName( FieldLinkRow::eDetailField, *pDetailFields );
338 0 : aRows[ i ]->SetFieldName( FieldLinkRow::eMasterField, *pMasterFields );
339 : }
340 0 : }
341 :
342 :
343 0 : void FormLinkDialog::initializeLinks()
344 : {
345 : try
346 : {
347 0 : Sequence< OUString > aDetailFields;
348 0 : Sequence< OUString > aMasterFields;
349 :
350 0 : Reference< XPropertySet > xDetailFormProps( m_xDetailForm, UNO_QUERY );
351 0 : if ( xDetailFormProps.is() )
352 : {
353 0 : xDetailFormProps->getPropertyValue( PROPERTY_DETAILFIELDS ) >>= aDetailFields;
354 0 : xDetailFormProps->getPropertyValue( PROPERTY_MASTERFIELDS ) >>= aMasterFields;
355 : }
356 :
357 0 : initializeFieldRowsFrom( aDetailFields, aMasterFields );
358 : }
359 0 : catch( const Exception& )
360 : {
361 : OSL_FAIL( "FormLinkDialog::initializeLinks: caught an exception!" );
362 : }
363 0 : }
364 :
365 :
366 0 : void FormLinkDialog::updateOkButton()
367 : {
368 : // in all rows, there must be either two valid selections, or none at all
369 : // If there is at least one row with exactly one valid selection, then the
370 : // OKButton needs to be disabled
371 0 : bool bEnable = true;
372 :
373 : const FieldLinkRow* aRows[] = {
374 0 : m_aRow1.get(), m_aRow2.get(), m_aRow3.get(), m_aRow4.get()
375 0 : };
376 :
377 0 : for ( sal_Int32 i = 0; ( i < 4 ) && bEnable; ++i )
378 : {
379 0 : OUString sNotInterestedInRightNow;
380 0 : if ( aRows[ i ]->GetFieldName( FieldLinkRow::eDetailField, sNotInterestedInRightNow )
381 0 : != aRows[ i ]->GetFieldName( FieldLinkRow::eMasterField, sNotInterestedInRightNow )
382 : )
383 0 : bEnable = false;
384 0 : }
385 :
386 0 : m_pOK->Enable( bEnable );
387 0 : }
388 :
389 :
390 0 : OUString FormLinkDialog::getFormDataSourceType( const Reference< XPropertySet >& _rxForm )
391 : {
392 0 : OUString sReturn;
393 0 : if ( !_rxForm.is() )
394 0 : return sReturn;
395 :
396 : try
397 : {
398 0 : sal_Int32 nCommandType = CommandType::COMMAND;
399 0 : OUString sCommand;
400 :
401 0 : _rxForm->getPropertyValue( PROPERTY_COMMANDTYPE ) >>= nCommandType;
402 0 : _rxForm->getPropertyValue( PROPERTY_COMMAND ) >>= sCommand;
403 :
404 0 : if ( ( nCommandType == CommandType::TABLE )
405 0 : || ( nCommandType == CommandType::QUERY )
406 : )
407 0 : sReturn = sCommand;
408 : }
409 0 : catch( const Exception& )
410 : {
411 : OSL_FAIL( "FormLinkDialog::getFormDataSourceType: caught an exception!" );
412 : }
413 0 : return sReturn;
414 : }
415 :
416 :
417 0 : void FormLinkDialog::getFormFields( const Reference< XPropertySet >& _rxForm, Sequence< OUString >& /* [out] */ _rNames ) const
418 : {
419 0 : _rNames.realloc( 0 );
420 :
421 0 : ::dbtools::SQLExceptionInfo aErrorInfo;
422 0 : OUString sCommand;
423 : try
424 : {
425 0 : WaitObject aWaitCursor( const_cast< FormLinkDialog* >( this ) );
426 :
427 : OSL_ENSURE( _rxForm.is(), "FormLinkDialog::getFormFields: invalid form!" );
428 :
429 0 : sal_Int32 nCommandType = CommandType::COMMAND;
430 :
431 0 : _rxForm->getPropertyValue( PROPERTY_COMMANDTYPE ) >>= nCommandType;
432 0 : _rxForm->getPropertyValue( PROPERTY_COMMAND ) >>= sCommand;
433 :
434 0 : Reference< XConnection > xConnection;
435 0 : ensureFormConnection( _rxForm, xConnection );
436 :
437 0 : _rNames = ::dbtools::getFieldNamesByCommandDescriptor(
438 : xConnection,
439 : nCommandType,
440 : sCommand,
441 : &aErrorInfo
442 0 : );
443 : }
444 0 : catch (const SQLContext& e) { aErrorInfo = e; }
445 0 : catch (const SQLWarning& e) { aErrorInfo = e; }
446 0 : catch (const SQLException& e ) { aErrorInfo = e; }
447 0 : catch( const Exception& )
448 : {
449 : OSL_FAIL( "FormLinkDialog::getFormFields: caught a non-SQL exception!" );
450 : }
451 :
452 0 : if ( aErrorInfo.isValid() )
453 : {
454 0 : OUString sErrorMessage;
455 : {
456 0 : sErrorMessage = PcrRes(STR_ERROR_RETRIEVING_COLUMNS).toString();
457 0 : sErrorMessage = sErrorMessage.replaceFirst("#", sCommand);
458 : }
459 :
460 0 : SQLContext aContext;
461 0 : aContext.Message = sErrorMessage;
462 0 : aContext.NextException = aErrorInfo.get();
463 0 : ::dbtools::showError( aContext, VCLUnoHelper::GetInterface( const_cast< FormLinkDialog* >( this ) ), m_xContext );
464 0 : }
465 0 : }
466 :
467 :
468 0 : void FormLinkDialog::ensureFormConnection( const Reference< XPropertySet >& _rxFormProps, Reference< XConnection >& /* [out] */ _rxConnection ) const
469 : {
470 : OSL_PRECOND( _rxFormProps.is(), "FormLinkDialog::ensureFormConnection: invalid form!" );
471 0 : if ( !_rxFormProps.is() )
472 0 : return;
473 0 : if ( _rxFormProps->getPropertySetInfo()->hasPropertyByName(PROPERTY_ACTIVE_CONNECTION) )
474 0 : _rxConnection.set(_rxFormProps->getPropertyValue(PROPERTY_ACTIVE_CONNECTION),UNO_QUERY);
475 :
476 0 : if ( !_rxConnection.is() )
477 0 : _rxConnection = ::dbtools::connectRowset( Reference< XRowSet >( _rxFormProps, UNO_QUERY ), m_xContext, true );
478 : }
479 :
480 :
481 0 : void FormLinkDialog::getConnectionMetaData( const Reference< XPropertySet >& _rxFormProps, Reference< XDatabaseMetaData >& /* [out] */ _rxMeta )
482 : {
483 0 : if ( _rxFormProps.is() )
484 : {
485 0 : Reference< XConnection > xConnection;
486 0 : if ( !::dbtools::isEmbeddedInDatabase( _rxFormProps, xConnection ) )
487 0 : _rxFormProps->getPropertyValue( PROPERTY_ACTIVE_CONNECTION ) >>= xConnection;
488 0 : if ( xConnection.is() )
489 0 : _rxMeta = xConnection->getMetaData();
490 : }
491 0 : }
492 :
493 :
494 0 : Reference< XPropertySet > FormLinkDialog::getCanonicUnderlyingTable( const Reference< XPropertySet >& _rxFormProps ) const
495 : {
496 0 : Reference< XPropertySet > xTable;
497 : try
498 : {
499 0 : Reference< XTablesSupplier > xTablesInForm( ::dbtools::getCurrentSettingsComposer( _rxFormProps, m_xContext ), UNO_QUERY );
500 0 : Reference< XNameAccess > xTables;
501 0 : if ( xTablesInForm.is() )
502 0 : xTables = xTablesInForm->getTables();
503 0 : Sequence< OUString > aTableNames;
504 0 : if ( xTables.is() )
505 0 : aTableNames = xTables->getElementNames();
506 :
507 0 : if ( aTableNames.getLength() == 1 )
508 : {
509 0 : xTables->getByName( aTableNames[ 0 ] ) >>= xTable;
510 : OSL_ENSURE( xTable.is(), "FormLinkDialog::getCanonicUnderlyingTable: invalid table!" );
511 0 : }
512 : }
513 0 : catch( const Exception& )
514 : {
515 : OSL_FAIL( "FormLinkDialog::getCanonicUnderlyingTable: caught an exception!" );
516 : }
517 0 : return xTable;
518 : }
519 :
520 :
521 0 : bool FormLinkDialog::getExistingRelation( const Reference< XPropertySet >& _rxLHS, const Reference< XPropertySet >& /*_rxRHS*/,
522 : // TODO: fix the usage of _rxRHS. This is issue #i81956#.
523 : Sequence< OUString >& _rLeftFields, Sequence< OUString >& _rRightFields )
524 : {
525 : try
526 : {
527 0 : Reference< XKeysSupplier > xSuppKeys( _rxLHS, UNO_QUERY );
528 0 : Reference< XIndexAccess > xKeys;
529 0 : if ( xSuppKeys.is() )
530 0 : xKeys = xSuppKeys->getKeys();
531 :
532 0 : if ( xKeys.is() )
533 : {
534 0 : Reference< XPropertySet > xKey;
535 0 : Reference< XColumnsSupplier > xKeyColSupp( xKey, UNO_QUERY );
536 0 : Reference< XIndexAccess > xKeyColumns;
537 0 : Reference< XPropertySet > xKeyColumn;
538 0 : OUString sColumnName, sRelatedColumnName;
539 :
540 0 : const sal_Int32 keyCount = xKeys->getCount();
541 0 : for ( sal_Int32 key = 0; key < keyCount; ++key )
542 : {
543 0 : xKeys->getByIndex( key ) >>= xKey;
544 0 : sal_Int32 nKeyType = 0;
545 0 : xKey->getPropertyValue("Type") >>= nKeyType;
546 0 : if ( nKeyType != KeyType::FOREIGN )
547 0 : continue;
548 :
549 0 : xKeyColumns.clear();
550 0 : xKeyColSupp.set(xKey, css::uno::UNO_QUERY);
551 0 : if ( xKeyColSupp.is() )
552 0 : xKeyColumns.set(xKeyColSupp->getColumns(), css::uno::UNO_QUERY);
553 : OSL_ENSURE( xKeyColumns.is(), "FormLinkDialog::getExistingRelation: could not obtain the columns for the key!" );
554 :
555 0 : if ( !xKeyColumns.is() )
556 0 : continue;
557 :
558 0 : const sal_Int32 columnCount = xKeyColumns->getCount();
559 0 : _rLeftFields.realloc( columnCount );
560 0 : _rRightFields.realloc( columnCount );
561 0 : for ( sal_Int32 column = 0; column < columnCount; ++column )
562 : {
563 0 : xKeyColumn.clear();
564 0 : xKeyColumns->getByIndex( column ) >>= xKeyColumn;
565 : OSL_ENSURE( xKeyColumn.is(), "FormLinkDialog::getExistingRelation: invalid key column!" );
566 0 : if ( xKeyColumn.is() )
567 : {
568 0 : xKeyColumn->getPropertyValue( PROPERTY_NAME ) >>= sColumnName;
569 0 : xKeyColumn->getPropertyValue("RelatedColumn") >>= sRelatedColumnName;
570 :
571 0 : _rLeftFields[ column ] = sColumnName;
572 0 : _rRightFields[ column ] = sRelatedColumnName;
573 : }
574 : }
575 0 : }
576 0 : }
577 : }
578 0 : catch( const Exception& )
579 : {
580 : OSL_FAIL( "FormLinkDialog::getExistingRelation: caught an exception!" );
581 : }
582 :
583 0 : return ( _rLeftFields.getLength() > 0 ) && ( !_rLeftFields[ 0 ].isEmpty() );
584 : }
585 :
586 :
587 0 : void FormLinkDialog::initializeSuggest()
588 : {
589 0 : Reference< XPropertySet > xDetailFormProps( m_xDetailForm, UNO_QUERY );
590 0 : Reference< XPropertySet > xMasterFormProps( m_xMasterForm, UNO_QUERY );
591 0 : if ( !xDetailFormProps.is() || !xMasterFormProps.is() )
592 0 : return;
593 :
594 : try
595 : {
596 0 : bool bEnable = true;
597 :
598 : // only show the button when both forms are based on the same data source
599 0 : if ( bEnable )
600 : {
601 0 : OUString sMasterDS, sDetailDS;
602 0 : xMasterFormProps->getPropertyValue( PROPERTY_DATASOURCE ) >>= sMasterDS;
603 0 : xDetailFormProps->getPropertyValue( PROPERTY_DATASOURCE ) >>= sDetailDS;
604 0 : bEnable = ( sMasterDS == sDetailDS );
605 : }
606 :
607 : // only show the button when the connection supports relations
608 0 : if ( bEnable )
609 : {
610 0 : Reference< XDatabaseMetaData > xMeta;
611 0 : getConnectionMetaData( xDetailFormProps, xMeta );
612 : OSL_ENSURE( xMeta.is(), "FormLinkDialog::initializeSuggest: unable to retrieve the meta data for the connection!" );
613 : try
614 : {
615 0 : bEnable = xMeta.is() && xMeta->supportsIntegrityEnhancementFacility();
616 : }
617 0 : catch(const Exception&)
618 : {
619 0 : bEnable = false;
620 0 : }
621 : }
622 :
623 : // only enable the button if there is a "canonic" table underlying both forms
624 0 : Reference< XPropertySet > xDetailTable, xMasterTable;
625 0 : if ( bEnable )
626 : {
627 0 : xDetailTable = getCanonicUnderlyingTable( xDetailFormProps );
628 0 : xMasterTable = getCanonicUnderlyingTable( xMasterFormProps );
629 0 : bEnable = xDetailTable.is() && xMasterTable.is();
630 : }
631 :
632 : // only enable the button if there is a relation between both tables
633 0 : m_aRelationDetailColumns.realloc( 0 );
634 0 : m_aRelationMasterColumns.realloc( 0 );
635 0 : if ( bEnable )
636 : {
637 0 : bEnable = getExistingRelation( xDetailTable, xMasterTable, m_aRelationDetailColumns, m_aRelationMasterColumns );
638 : SAL_WARN_IF( m_aRelationMasterColumns.getLength() != m_aRelationDetailColumns.getLength(),
639 : "extensions.propctrlr",
640 : "FormLinkDialog::initializeSuggest: nonsense!" );
641 0 : if ( m_aRelationMasterColumns.getLength() == 0 )
642 : { // okay, there is no relation "pointing" (via a foreign key) from the detail table to the master table
643 : // but perhaps the other way round (would make less sense, but who knows ...)
644 0 : bEnable = getExistingRelation( xMasterTable, xDetailTable, m_aRelationMasterColumns, m_aRelationDetailColumns );
645 : }
646 : }
647 :
648 : // only enable the button if the relation contains at most 4 field pairs
649 0 : if ( bEnable )
650 : {
651 0 : bEnable = ( m_aRelationMasterColumns.getLength() <= 4 );
652 : }
653 :
654 0 : m_pSuggest->Enable( bEnable );
655 : }
656 0 : catch( const Exception& )
657 : {
658 : OSL_FAIL( "FormLinkDialog::initializeSuggest: caught an exception!" );
659 0 : }
660 : }
661 :
662 :
663 0 : IMPL_LINK_NOARG( FormLinkDialog, OnSuggest )
664 : {
665 0 : initializeFieldRowsFrom( m_aRelationDetailColumns, m_aRelationMasterColumns );
666 0 : return 0L;
667 : }
668 :
669 :
670 0 : IMPL_LINK( FormLinkDialog, OnFieldChanged, FieldLinkRow*, /*_pRow*/ )
671 : {
672 0 : updateOkButton();
673 0 : return 0L;
674 : }
675 :
676 :
677 0 : IMPL_LINK_NOARG( FormLinkDialog, OnInitialize )
678 : {
679 0 : initializeColumnLabels();
680 0 : initializeFieldLists();
681 0 : initializeLinks();
682 0 : initializeSuggest();
683 0 : return 0L;
684 : }
685 :
686 6 : } // namespace pcr
687 :
688 :
689 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
