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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include "formlinkdialog.hxx"
+
+#include "modulepcr.hxx"
+#include <strings.hrc>
+#include "formstrings.hxx"
+#include <sal/log.hxx>
+#include <comphelper/diagnose_ex.hxx>
+#include <utility>
+#include <vcl/svapp.hxx>
+#include <connectivity/dbtools.hxx>
+#include <connectivity/dbexception.hxx>
+#include <comphelper/sequence.hxx>
+
+#include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
+#include <com/sun/star/sdbcx/XKeysSupplier.hpp>
+#include <com/sun/star/sdbcx/KeyType.hpp>
+#include <com/sun/star/container/XNameAccess.hpp>
+#include <com/sun/star/sdbcx/XTablesSupplier.hpp>
+#include <com/sun/star/sdbc/XRowSet.hpp>
+#include <com/sun/star/sdb/CommandType.hpp>
+#include <com/sun/star/sdb/SQLContext.hpp>
+#include <com/sun/star/sdb/XSingleSelectQueryComposer.hpp>
+
+namespace pcr
+{
+
+
+ using namespace ::com::sun::star::uno;
+ using namespace ::com::sun::star::lang;
+ using namespace ::com::sun::star::sdb;
+ using namespace ::com::sun::star::sdbc;
+ using namespace ::com::sun::star::sdbcx;
+ using namespace ::com::sun::star::beans;
+ using namespace ::com::sun::star::container;
+
+
+ //= FieldLinkRow
+
+ class FieldLinkRow
+ {
+ private:
+ std::unique_ptr<weld::ComboBox> m_xDetailColumn;
+ std::unique_ptr<weld::ComboBox> m_xMasterColumn;
+
+ Link<FieldLinkRow&,void> m_aLinkChangeHandler;
+
+ public:
+ FieldLinkRow(std::unique_ptr<weld::ComboBox> xDetailColumn,
+ std::unique_ptr<weld::ComboBox> xMasterColumn);
+
+
+ void SetLinkChangeHandler( const Link<FieldLinkRow&,void>& _rHdl ) { m_aLinkChangeHandler = _rHdl; }
+
+ enum LinkParticipant
+ {
+ eDetailField,
+ eMasterField
+ };
+ /** retrieves the selected field name for either the master or the detail field
+ @return <TRUE/> if and only a valid field is selected
+ */
+ bool GetFieldName( LinkParticipant _eWhich, OUString& /* [out] */ _rName ) const;
+ void SetFieldName( LinkParticipant _eWhich, const OUString& _rName );
+
+ void fillList( LinkParticipant _eWhich, const Sequence< OUString >& _rFieldNames );
+
+ void Show()
+ {
+ m_xDetailColumn->show();
+ m_xMasterColumn->show();
+ }
+
+ private:
+ DECL_LINK( OnFieldNameChanged, weld::ComboBox&, void );
+ };
+
+
+ FieldLinkRow::FieldLinkRow(std::unique_ptr<weld::ComboBox> xDetailColumn,
+ std::unique_ptr<weld::ComboBox> xMasterColumn)
+ : m_xDetailColumn(std::move(xDetailColumn))
+ , m_xMasterColumn(std::move(xMasterColumn))
+ {
+ m_xDetailColumn->connect_changed( LINK( this, FieldLinkRow, OnFieldNameChanged ) );
+ m_xMasterColumn->connect_changed( LINK( this, FieldLinkRow, OnFieldNameChanged ) );
+ }
+
+ void FieldLinkRow::fillList( LinkParticipant _eWhich, const Sequence< OUString >& _rFieldNames )
+ {
+ weld::ComboBox* pBox = ( _eWhich == eDetailField ) ? m_xDetailColumn.get() : m_xMasterColumn.get();
+
+ const OUString* pFieldName = _rFieldNames.getConstArray();
+ const OUString* pFieldNameEnd = pFieldName + _rFieldNames.getLength();
+ for ( ; pFieldName != pFieldNameEnd; ++pFieldName )
+ pBox->append_text( *pFieldName );
+ }
+
+ bool FieldLinkRow::GetFieldName( LinkParticipant _eWhich, OUString& /* [out] */ _rName ) const
+ {
+ const weld::ComboBox* pBox = ( _eWhich == eDetailField ) ? m_xDetailColumn.get() : m_xMasterColumn.get();
+ _rName = pBox->get_active_text();
+ return !_rName.isEmpty();
+ }
+
+ void FieldLinkRow::SetFieldName( LinkParticipant _eWhich, const OUString& _rName )
+ {
+ weld::ComboBox* pBox = ( _eWhich == eDetailField ) ? m_xDetailColumn.get() : m_xMasterColumn.get();
+ pBox->set_entry_text( _rName );
+ }
+
+ IMPL_LINK_NOARG( FieldLinkRow, OnFieldNameChanged, weld::ComboBox&, void )
+ {
+ m_aLinkChangeHandler.Call( *this );
+ }
+
+ //= FormLinkDialog
+
+ FormLinkDialog::FormLinkDialog(weld::Window* _pParent, const Reference< XPropertySet >& _rxDetailForm,
+ const Reference< XPropertySet >& _rxMasterForm, const Reference< XComponentContext >& _rxContext,
+ const OUString& _sExplanation,
+ OUString _sDetailLabel,
+ OUString _sMasterLabel)
+ : GenericDialogController(_pParent, "modules/spropctrlr/ui/formlinksdialog.ui", "FormLinks")
+ , m_xContext ( _rxContext )
+ , m_xDetailForm( _rxDetailForm )
+ , m_xMasterForm( _rxMasterForm )
+ , m_sDetailLabel(std::move(_sDetailLabel))
+ , m_sMasterLabel(std::move(_sMasterLabel))
+ , m_xExplanation(m_xBuilder->weld_label("explanationLabel"))
+ , m_xDetailLabel(m_xBuilder->weld_label("detailLabel"))
+ , m_xMasterLabel(m_xBuilder->weld_label("masterLabel"))
+ , m_xRow1(std::make_unique<FieldLinkRow>(m_xBuilder->weld_combo_box("detailCombobox1"),
+ m_xBuilder->weld_combo_box("masterCombobox1")))
+ , m_xRow2(std::make_unique<FieldLinkRow>(m_xBuilder->weld_combo_box("detailCombobox2"),
+ m_xBuilder->weld_combo_box("masterCombobox2")))
+ , m_xRow3(std::make_unique<FieldLinkRow>(m_xBuilder->weld_combo_box("detailCombobox3"),
+ m_xBuilder->weld_combo_box("masterCombobox3")))
+ , m_xRow4(std::make_unique<FieldLinkRow>(m_xBuilder->weld_combo_box("detailCombobox4"),
+ m_xBuilder->weld_combo_box("masterCombobox4")))
+ , m_xOK(m_xBuilder->weld_button("ok"))
+ , m_xSuggest(m_xBuilder->weld_button("suggestButton"))
+ {
+ m_xRow1->Show();
+ m_xRow2->Show();
+ m_xRow3->Show();
+ m_xRow4->Show();
+ m_xDialog->set_size_request(600, -1);
+
+ if ( !_sExplanation.isEmpty() )
+ m_xExplanation->set_label(_sExplanation);
+
+ m_xSuggest->connect_clicked(LINK(this, FormLinkDialog, OnSuggest));
+ m_xRow1->SetLinkChangeHandler( LINK( this, FormLinkDialog, OnFieldChanged ) );
+ m_xRow2->SetLinkChangeHandler( LINK( this, FormLinkDialog, OnFieldChanged ) );
+ m_xRow3->SetLinkChangeHandler( LINK( this, FormLinkDialog, OnFieldChanged ) );
+ m_xRow4->SetLinkChangeHandler( LINK( this, FormLinkDialog, OnFieldChanged ) );
+
+ Application::PostUserEvent(LINK(this, FormLinkDialog, OnInitialize));
+
+ updateOkButton();
+ }
+
+ FormLinkDialog::~FormLinkDialog()
+ {
+ }
+
+ void FormLinkDialog::commitLinkPairs()
+ {
+ // collect the field lists from the rows
+ std::vector< OUString > aDetailFields; aDetailFields.reserve( 4 );
+ std::vector< OUString > aMasterFields; aMasterFields.reserve( 4 );
+
+ const FieldLinkRow* aRows[] = {
+ m_xRow1.get(), m_xRow2.get(), m_xRow3.get(), m_xRow4.get()
+ };
+
+ for (const FieldLinkRow* aRow : aRows)
+ {
+ OUString sDetailField, sMasterField;
+ aRow->GetFieldName( FieldLinkRow::eDetailField, sDetailField );
+ aRow->GetFieldName( FieldLinkRow::eMasterField, sMasterField );
+ if ( sDetailField.isEmpty() && sMasterField.isEmpty() )
+ continue;
+
+ aDetailFields.push_back( sDetailField );
+ aMasterFields.push_back( sMasterField );
+ }
+
+ // and set as property values
+ try
+ {
+ if ( m_xDetailForm.is() )
+ {
+ m_xDetailForm->setPropertyValue( PROPERTY_DETAILFIELDS, Any( Sequence< OUString >( aDetailFields.data(), aDetailFields.size() ) ) );
+ m_xDetailForm->setPropertyValue( PROPERTY_MASTERFIELDS, Any( Sequence< OUString >( aMasterFields.data(), aMasterFields.size() ) ) );
+ }
+ }
+ catch( const Exception& )
+ {
+ TOOLS_WARN_EXCEPTION("extensions.propctrlr",
+ "caught an exception while setting the properties!");
+ }
+ }
+
+ short FormLinkDialog::run()
+ {
+ short nResult = GenericDialogController::run();
+
+ if ( RET_OK == nResult )
+ commitLinkPairs();
+
+ return nResult;
+ }
+
+ void FormLinkDialog::initializeFieldLists()
+ {
+ Sequence< OUString > sDetailFields;
+ getFormFields( m_xDetailForm, sDetailFields );
+
+ Sequence< OUString > sMasterFields;
+ getFormFields( m_xMasterForm, sMasterFields );
+
+ FieldLinkRow* aRows[] = {
+ m_xRow1.get(), m_xRow2.get(), m_xRow3.get(), m_xRow4.get()
+ };
+ for (FieldLinkRow* aRow : aRows)
+ {
+ aRow->fillList( FieldLinkRow::eDetailField, sDetailFields );
+ aRow->fillList( FieldLinkRow::eMasterField, sMasterFields );
+ }
+
+ }
+
+
+ void FormLinkDialog::initializeColumnLabels()
+ {
+ // label for the detail form
+ OUString sDetailType = getFormDataSourceType( m_xDetailForm );
+ if ( sDetailType.isEmpty() )
+ {
+ if ( m_sDetailLabel.isEmpty() )
+ {
+ m_sDetailLabel = PcrRes(STR_DETAIL_FORM);
+ }
+ sDetailType = m_sDetailLabel;
+ }
+ m_xDetailLabel->set_label( sDetailType );
+
+ // label for the master form
+ OUString sMasterType = getFormDataSourceType( m_xMasterForm );
+ if ( sMasterType.isEmpty() )
+ {
+ if ( m_sMasterLabel.isEmpty() )
+ {
+ m_sMasterLabel = PcrRes(STR_MASTER_FORM);
+ }
+ sMasterType = m_sMasterLabel;
+ }
+ m_xMasterLabel->set_label( sMasterType );
+ }
+
+ void FormLinkDialog::initializeFieldRowsFrom( std::vector< OUString >& _rDetailFields, std::vector< OUString >& _rMasterFields )
+ {
+ // our UI does allow 4 fields max
+ _rDetailFields.resize( 4 );
+ _rMasterFields.resize( 4 );
+
+ FieldLinkRow* aRows[] = {
+ m_xRow1.get(), m_xRow2.get(), m_xRow3.get(), m_xRow4.get()
+ };
+ for ( sal_Int32 i = 0; i < 4; ++i )
+ {
+ aRows[ i ]->SetFieldName( FieldLinkRow::eDetailField, _rDetailFields[i] );
+ aRows[ i ]->SetFieldName( FieldLinkRow::eMasterField, _rMasterFields[i] );
+ }
+ }
+
+
+ void FormLinkDialog::initializeLinks()
+ {
+ try
+ {
+ Sequence< OUString > aDetailFields;
+ Sequence< OUString > aMasterFields;
+
+ if ( m_xDetailForm.is() )
+ {
+ m_xDetailForm->getPropertyValue( PROPERTY_DETAILFIELDS ) >>= aDetailFields;
+ m_xDetailForm->getPropertyValue( PROPERTY_MASTERFIELDS ) >>= aMasterFields;
+ }
+
+ std::vector< OUString > aDetailFields1;
+ comphelper::sequenceToContainer(aDetailFields1, aDetailFields);
+ std::vector< OUString > aMasterFields1;
+ comphelper::sequenceToContainer(aMasterFields1, aMasterFields);
+ initializeFieldRowsFrom( aDetailFields1, aMasterFields1 );
+ }
+ catch( const Exception& )
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "FormLinkDialog::initializeLinks" );
+ }
+ }
+
+
+ void FormLinkDialog::updateOkButton()
+ {
+ // in all rows, there must be either two valid selections, or none at all
+ // If there is at least one row with exactly one valid selection, then the
+ // OKButton needs to be disabled
+ bool bEnable = true;
+
+ const FieldLinkRow* aRows[] = {
+ m_xRow1.get(), m_xRow2.get(), m_xRow3.get(), m_xRow4.get()
+ };
+
+ for ( sal_Int32 i = 0; ( i < 4 ) && bEnable; ++i )
+ {
+ OUString sNotInterestedInRightNow;
+ if ( aRows[ i ]->GetFieldName( FieldLinkRow::eDetailField, sNotInterestedInRightNow )
+ != aRows[ i ]->GetFieldName( FieldLinkRow::eMasterField, sNotInterestedInRightNow )
+ )
+ bEnable = false;
+ }
+
+ m_xOK->set_sensitive(bEnable);
+ }
+
+ OUString FormLinkDialog::getFormDataSourceType( const Reference< XPropertySet >& _rxForm )
+ {
+ OUString sReturn;
+ if ( !_rxForm.is() )
+ return sReturn;
+
+ try
+ {
+ sal_Int32 nCommandType = CommandType::COMMAND;
+ OUString sCommand;
+
+ _rxForm->getPropertyValue( PROPERTY_COMMANDTYPE ) >>= nCommandType;
+ _rxForm->getPropertyValue( PROPERTY_COMMAND ) >>= sCommand;
+
+ if ( ( nCommandType == CommandType::TABLE )
+ || ( nCommandType == CommandType::QUERY )
+ )
+ sReturn = sCommand;
+ }
+ catch( const Exception& )
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "FormLinkDialog::getFormDataSourceType" );
+ }
+ return sReturn;
+ }
+
+ void FormLinkDialog::getFormFields( const Reference< XPropertySet >& _rxForm, Sequence< OUString >& /* [out] */ _rNames ) const
+ {
+ _rNames.realloc( 0 );
+
+ ::dbtools::SQLExceptionInfo aErrorInfo;
+ OUString sCommand;
+ try
+ {
+ weld::WaitObject aWaitCursor(m_xDialog.get());
+
+ OSL_ENSURE( _rxForm.is(), "FormLinkDialog::getFormFields: invalid form!" );
+
+ sal_Int32 nCommandType = CommandType::COMMAND;
+
+ _rxForm->getPropertyValue( PROPERTY_COMMANDTYPE ) >>= nCommandType;
+ _rxForm->getPropertyValue( PROPERTY_COMMAND ) >>= sCommand;
+
+ Reference< XConnection > xConnection;
+ ensureFormConnection( _rxForm, xConnection );
+
+ _rNames = ::dbtools::getFieldNamesByCommandDescriptor(
+ xConnection,
+ nCommandType,
+ sCommand,
+ &aErrorInfo
+ );
+ }
+ catch (const SQLContext& e) { aErrorInfo = e; }
+ catch (const SQLWarning& e) { aErrorInfo = e; }
+ catch (const SQLException& e ) { aErrorInfo = e; }
+ catch( const Exception& )
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "FormLinkDialog::getFormFields: caught a non-SQL exception!" );
+ }
+
+ if ( !aErrorInfo.isValid() )
+ return;
+
+ OUString sErrorMessage;
+ {
+ sErrorMessage = PcrRes(STR_ERROR_RETRIEVING_COLUMNS);
+ sErrorMessage = sErrorMessage.replaceFirst("#", sCommand);
+ }
+
+ SQLContext aContext(sErrorMessage, {}, {}, 0, aErrorInfo.get(), {});
+ ::dbtools::showError(aContext, m_xDialog->GetXWindow(), m_xContext);
+ }
+
+ void FormLinkDialog::ensureFormConnection( const Reference< XPropertySet >& _rxFormProps, Reference< XConnection >& /* [out] */ _rxConnection ) const
+ {
+ OSL_PRECOND( _rxFormProps.is(), "FormLinkDialog::ensureFormConnection: invalid form!" );
+ if ( !_rxFormProps.is() )
+ return;
+ if ( _rxFormProps->getPropertySetInfo()->hasPropertyByName(PROPERTY_ACTIVE_CONNECTION) )
+ _rxConnection.set(_rxFormProps->getPropertyValue(PROPERTY_ACTIVE_CONNECTION),UNO_QUERY);
+
+ if ( !_rxConnection.is() )
+ _rxConnection = ::dbtools::connectRowset( Reference< XRowSet >( _rxFormProps, UNO_QUERY ), m_xContext, nullptr );
+ }
+
+
+ void FormLinkDialog::getConnectionMetaData( const Reference< XPropertySet >& _rxFormProps, Reference< XDatabaseMetaData >& /* [out] */ _rxMeta )
+ {
+ if ( _rxFormProps.is() )
+ {
+ Reference< XConnection > xConnection;
+ if ( !::dbtools::isEmbeddedInDatabase( _rxFormProps, xConnection ) )
+ _rxFormProps->getPropertyValue( PROPERTY_ACTIVE_CONNECTION ) >>= xConnection;
+ if ( xConnection.is() )
+ _rxMeta = xConnection->getMetaData();
+ }
+ }
+
+
+ Reference< XPropertySet > FormLinkDialog::getCanonicUnderlyingTable( const Reference< XPropertySet >& _rxFormProps ) const
+ {
+ Reference< XPropertySet > xTable;
+ try
+ {
+ Reference< XTablesSupplier > xTablesInForm( ::dbtools::getCurrentSettingsComposer( _rxFormProps, m_xContext, nullptr ), UNO_QUERY );
+ Reference< XNameAccess > xTables;
+ if ( xTablesInForm.is() )
+ xTables = xTablesInForm->getTables();
+ Sequence< OUString > aTableNames;
+ if ( xTables.is() )
+ aTableNames = xTables->getElementNames();
+
+ if ( aTableNames.getLength() == 1 )
+ {
+ xTables->getByName( aTableNames[ 0 ] ) >>= xTable;
+ OSL_ENSURE( xTable.is(), "FormLinkDialog::getCanonicUnderlyingTable: invalid table!" );
+ }
+ }
+ catch( const Exception& )
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "FormLinkDialog::getCanonicUnderlyingTable" );
+ }
+ return xTable;
+ }
+
+
+ bool FormLinkDialog::getExistingRelation( const Reference< XPropertySet >& _rxLHS, const Reference< XPropertySet >& /*_rxRHS*/,
+ // TODO: fix the usage of _rxRHS. This is issue #i81956#.
+ std::vector< OUString >& _rLeftFields, std::vector< OUString >& _rRightFields )
+ {
+ try
+ {
+ Reference< XKeysSupplier > xSuppKeys( _rxLHS, UNO_QUERY );
+ Reference< XIndexAccess > xKeys;
+ if ( xSuppKeys.is() )
+ xKeys = xSuppKeys->getKeys();
+
+ if ( xKeys.is() )
+ {
+ Reference< XPropertySet > xKey;
+ Reference< XColumnsSupplier > xKeyColSupp( xKey, UNO_QUERY );
+ Reference< XIndexAccess > xKeyColumns;
+ Reference< XPropertySet > xKeyColumn;
+ OUString sColumnName, sRelatedColumnName;
+
+ const sal_Int32 keyCount = xKeys->getCount();
+ for ( sal_Int32 key = 0; key < keyCount; ++key )
+ {
+ xKeys->getByIndex( key ) >>= xKey;
+ sal_Int32 nKeyType = 0;
+ xKey->getPropertyValue("Type") >>= nKeyType;
+ if ( nKeyType != KeyType::FOREIGN )
+ continue;
+
+ xKeyColumns.clear();
+ xKeyColSupp.set(xKey, css::uno::UNO_QUERY);
+ if ( xKeyColSupp.is() )
+ xKeyColumns.set(xKeyColSupp->getColumns(), css::uno::UNO_QUERY);
+ OSL_ENSURE( xKeyColumns.is(), "FormLinkDialog::getExistingRelation: could not obtain the columns for the key!" );
+
+ if ( !xKeyColumns.is() )
+ continue;
+
+ const sal_Int32 columnCount = xKeyColumns->getCount();
+ _rLeftFields.resize( columnCount );
+ _rRightFields.resize( columnCount );
+ for ( sal_Int32 column = 0; column < columnCount; ++column )
+ {
+ xKeyColumn.clear();
+ xKeyColumns->getByIndex( column ) >>= xKeyColumn;
+ OSL_ENSURE( xKeyColumn.is(), "FormLinkDialog::getExistingRelation: invalid key column!" );
+ if ( xKeyColumn.is() )
+ {
+ xKeyColumn->getPropertyValue( PROPERTY_NAME ) >>= sColumnName;
+ xKeyColumn->getPropertyValue("RelatedColumn") >>= sRelatedColumnName;
+
+ _rLeftFields[ column ] = sColumnName;
+ _rRightFields[ column ] = sRelatedColumnName;
+ }
+ }
+ }
+ }
+ }
+ catch( const Exception& )
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "FormLinkDialog::getExistingRelation" );
+ }
+
+ return ( !_rLeftFields.empty() ) && ( !_rLeftFields[ 0 ].isEmpty() );
+ }
+
+
+ void FormLinkDialog::initializeSuggest()
+ {
+ if ( !m_xDetailForm.is() || !m_xMasterForm.is() )
+ return;
+
+ try
+ {
+ // only show the button when both forms are based on the same data source
+ OUString sMasterDS, sDetailDS;
+ m_xMasterForm->getPropertyValue( PROPERTY_DATASOURCE ) >>= sMasterDS;
+ m_xDetailForm->getPropertyValue( PROPERTY_DATASOURCE ) >>= sDetailDS;
+ bool bEnable = ( sMasterDS == sDetailDS );
+
+ // only show the button when the connection supports relations
+ if ( bEnable )
+ {
+ Reference< XDatabaseMetaData > xMeta;
+ getConnectionMetaData( m_xDetailForm, xMeta );
+ OSL_ENSURE( xMeta.is(), "FormLinkDialog::initializeSuggest: unable to retrieve the meta data for the connection!" );
+ try
+ {
+ bEnable = xMeta.is() && xMeta->supportsIntegrityEnhancementFacility();
+ }
+ catch(const Exception&)
+ {
+ bEnable = false;
+ }
+ }
+
+ // only enable the button if there is a "canonic" table underlying both forms
+ Reference< XPropertySet > xDetailTable, xMasterTable;
+ if ( bEnable )
+ {
+ xDetailTable = getCanonicUnderlyingTable( m_xDetailForm );
+ xMasterTable = getCanonicUnderlyingTable( m_xMasterForm );
+ bEnable = xDetailTable.is() && xMasterTable.is();
+ }
+
+ // only enable the button if there is a relation between both tables
+ m_aRelationDetailColumns.clear();
+ m_aRelationMasterColumns.clear();
+ if ( bEnable )
+ {
+ bEnable = getExistingRelation( xDetailTable, xMasterTable, m_aRelationDetailColumns, m_aRelationMasterColumns );
+ SAL_WARN_IF( m_aRelationMasterColumns.size() != m_aRelationDetailColumns.size(),
+ "extensions.propctrlr",
+ "FormLinkDialog::initializeSuggest: nonsense!" );
+ if ( m_aRelationMasterColumns.empty() )
+ { // okay, there is no relation "pointing" (via a foreign key) from the detail table to the master table
+ // but perhaps the other way round (would make less sense, but who knows ...)
+ bEnable = getExistingRelation( xMasterTable, xDetailTable, m_aRelationMasterColumns, m_aRelationDetailColumns );
+ }
+ }
+
+ // only enable the button if the relation contains at most 4 field pairs
+ if ( bEnable )
+ {
+ bEnable = ( m_aRelationMasterColumns.size() <= 4 );
+ }
+
+ m_xSuggest->set_sensitive(bEnable);
+ }
+ catch( const Exception& )
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.propctrlr", "FormLinkDialog::initializeSuggest" );
+ }
+ }
+
+ IMPL_LINK_NOARG( FormLinkDialog, OnSuggest, weld::Button&, void )
+ {
+ initializeFieldRowsFrom( m_aRelationDetailColumns, m_aRelationMasterColumns );
+ }
+
+ IMPL_LINK_NOARG( FormLinkDialog, OnFieldChanged, FieldLinkRow&, void )
+ {
+ updateOkButton();
+ }
+
+ IMPL_LINK_NOARG( FormLinkDialog, OnInitialize, void*, void )
+ {
+ initializeColumnLabels();
+ initializeFieldLists();
+ initializeLinks();
+ initializeSuggest();
+ }
+
+} // namespace pcr
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */