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diff --git a/extensions/source/dbpilots/controlwizard.cxx b/extensions/source/dbpilots/controlwizard.cxx
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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 "controlwizard.hxx"
+#include <tools/debug.hxx>
+#include <tools/diagnose_ex.h>
+#include <com/sun/star/container/XNameAccess.hpp>
+#include <com/sun/star/sdbcx/XTablesSupplier.hpp>
+#include <com/sun/star/sdb/DatabaseContext.hpp>
+#include <com/sun/star/sdb/XQueriesSupplier.hpp>
+#include <com/sun/star/sdbc/XPreparedStatement.hpp>
+#include <com/sun/star/container/XChild.hpp>
+#include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
+#include <com/sun/star/frame/XModel.hpp>
+#include <com/sun/star/sheet/XSpreadsheetView.hpp>
+#include <com/sun/star/drawing/XDrawView.hpp>
+#include <com/sun/star/drawing/XDrawPageSupplier.hpp>
+#include <com/sun/star/sdb/CommandType.hpp>
+#include <com/sun/star/sdbc/SQLWarning.hpp>
+#include <com/sun/star/sdb/SQLContext.hpp>
+#include <com/sun/star/task/InteractionHandler.hpp>
+#include <comphelper/types.hxx>
+#include <connectivity/dbtools.hxx>
+#include <comphelper/interaction.hxx>
+#include <vcl/stdtext.hxx>
+#include <connectivity/conncleanup.hxx>
+#include <com/sun/star/sdbc/DataType.hpp>
+#include <tools/urlobj.hxx>
+
+#define WIZARD_SIZE_X 60
+#define WIZARD_SIZE_Y 23
+
+namespace dbp
+{
+ using namespace ::com::sun::star::uno;
+ using namespace ::com::sun::star::awt;
+ 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;
+ using namespace ::com::sun::star::drawing;
+ using namespace ::com::sun::star::frame;
+ using namespace ::com::sun::star::sheet;
+ using namespace ::com::sun::star::form;
+ using namespace ::com::sun::star::task;
+ using namespace ::comphelper;
+ using namespace ::dbtools;
+
+ struct OAccessRegulator
+ {
+ friend class OControlWizardPage;
+
+ protected:
+ OAccessRegulator() { }
+ };
+
+ OControlWizardPage::OControlWizardPage(weld::Container* pPage, OControlWizard* pWizard, const OUString& rUIXMLDescription, const OString& rID)
+ : OControlWizardPage_Base(pPage, pWizard, rUIXMLDescription, rID)
+ , m_pDialog(pWizard)
+ {
+ m_xContainer->set_size_request(m_xContainer->get_approximate_digit_width() * WIZARD_SIZE_X,
+ m_xContainer->get_text_height() * WIZARD_SIZE_Y);
+ }
+
+ OControlWizardPage::~OControlWizardPage()
+ {
+ }
+
+ OControlWizard* OControlWizardPage::getDialog()
+ {
+ return m_pDialog;
+ }
+
+ const OControlWizard* OControlWizardPage::getDialog() const
+ {
+ return m_pDialog;
+ }
+
+ bool OControlWizardPage::updateContext()
+ {
+ return m_pDialog->updateContext(OAccessRegulator());
+ }
+
+ Reference< XConnection > OControlWizardPage::getFormConnection() const
+ {
+ return m_pDialog->getFormConnection(OAccessRegulator());
+ }
+
+ void OControlWizardPage::setFormConnection( const Reference< XConnection >& _rxConn, bool _bAutoDispose )
+ {
+ m_pDialog->setFormConnection( OAccessRegulator(), _rxConn, _bAutoDispose );
+ }
+
+ const OControlWizardContext& OControlWizardPage::getContext() const
+ {
+ return m_pDialog->getContext();
+ }
+
+ void OControlWizardPage::fillListBox(weld::TreeView& _rList, const Sequence< OUString >& _rItems)
+ {
+ _rList.clear();
+ const OUString* pItems = _rItems.getConstArray();
+ const OUString* pEnd = pItems + _rItems.getLength();
+ sal_Int32 nIndex = 0;
+ for (;pItems < pEnd; ++pItems, ++nIndex)
+ {
+ _rList.append(OUString::number(nIndex), *pItems);
+ }
+ }
+
+ void OControlWizardPage::fillListBox(weld::ComboBox& _rList, const Sequence< OUString >& _rItems)
+ {
+ _rList.clear();
+ const OUString* pItems = _rItems.getConstArray();
+ const OUString* pEnd = pItems + _rItems.getLength();
+ for (;pItems < pEnd; ++pItems)
+ {
+ _rList.append_text(*pItems);
+ }
+ }
+
+ void OControlWizardPage::enableFormDatasourceDisplay()
+ {
+ if (m_xFormContentType)
+ // nothing to do
+ return;
+
+ m_xFrame = m_xBuilder->weld_frame("sourceframe");
+ m_xFrame->show();
+ m_xFormContentType = m_xBuilder->weld_label("contenttype");
+ m_xFormContentTypeLabel = m_xBuilder->weld_label("contenttypelabel");
+ m_xFormDatasource = m_xBuilder->weld_label("datasource");
+ m_xFormDatasourceLabel = m_xBuilder->weld_label("datasourcelabel");
+ m_xFormTable = m_xBuilder->weld_label("formtable");
+ m_xFormTableLabel = m_xBuilder->weld_label("formtablelabel");
+
+ const OControlWizardContext& rContext = getContext();
+ if ( rContext.bEmbedded )
+ {
+ m_xFormDatasourceLabel->hide();
+ m_xFormDatasource->hide();
+ }
+ }
+
+ void OControlWizardPage::initializePage()
+ {
+ if (m_xFormDatasource && m_xFormContentTypeLabel && m_xFormTable)
+ {
+ const OControlWizardContext& rContext = getContext();
+ OUString sDataSource;
+ OUString sCommand;
+ sal_Int32 nCommandType = CommandType::COMMAND;
+ try
+ {
+ rContext.xForm->getPropertyValue("DataSourceName") >>= sDataSource;
+ rContext.xForm->getPropertyValue("Command") >>= sCommand;
+ rContext.xForm->getPropertyValue("CommandType") >>= nCommandType;
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION("extensions.dbpilots", "OControlWizardPage::initializePage");
+ }
+
+ INetURLObject aURL( sDataSource );
+ if( aURL.GetProtocol() != INetProtocol::NotValid )
+ sDataSource = aURL.GetLastName(INetURLObject::DecodeMechanism::WithCharset);
+ m_xFormDatasource->set_label(sDataSource);
+ m_xFormTable->set_label(sCommand);
+
+ TranslateId pCommandTypeResourceId;
+ switch (nCommandType)
+ {
+ case CommandType::TABLE:
+ pCommandTypeResourceId = RID_STR_TYPE_TABLE;
+ break;
+
+ case CommandType::QUERY:
+ pCommandTypeResourceId = RID_STR_TYPE_QUERY;
+ break;
+
+ default:
+ pCommandTypeResourceId = RID_STR_TYPE_COMMAND;
+ break;
+ }
+ m_xFormContentType->set_label(compmodule::ModuleRes(pCommandTypeResourceId));
+ }
+
+ OControlWizardPage_Base::initializePage();
+ }
+
+ OControlWizard::OControlWizard(weld::Window* _pParent,
+ const Reference< XPropertySet >& _rxObjectModel, const Reference< XComponentContext >& _rxContext )
+ : WizardMachine(_pParent, WizardButtonFlags::CANCEL | WizardButtonFlags::PREVIOUS | WizardButtonFlags::NEXT | WizardButtonFlags::FINISH)
+ , m_xContext(_rxContext)
+ {
+ m_aContext.xObjectModel = _rxObjectModel;
+ initContext();
+
+ defaultButton(WizardButtonFlags::NEXT);
+ enableButtons(WizardButtonFlags::FINISH, false);
+ }
+
+ OControlWizard::~OControlWizard()
+ {
+ }
+
+ short OControlWizard::run()
+ {
+ // get the class id of the control we're dealing with
+ sal_Int16 nClassId = FormComponentType::CONTROL;
+ try
+ {
+ getContext().xObjectModel->getPropertyValue("ClassId") >>= nClassId;
+ }
+ catch(const Exception&)
+ {
+ OSL_FAIL("OControlWizard::activate: could not obtain the class id!");
+ }
+ if (!approveControl(nClassId))
+ {
+ // TODO: MessageBox or exception
+ return RET_CANCEL;
+ }
+
+ ActivatePage();
+
+ m_xAssistant->set_current_page(0);
+
+ return OControlWizard_Base::run();
+ }
+
+ void OControlWizard::implDetermineShape()
+ {
+ Reference< XIndexAccess > xPageObjects = m_aContext.xDrawPage;
+ DBG_ASSERT(xPageObjects.is(), "OControlWizard::implDetermineShape: invalid page!");
+
+ // for comparing the model
+ Reference< XControlModel > xModelCompare(m_aContext.xObjectModel, UNO_QUERY);
+
+ if (!xPageObjects.is())
+ return;
+
+ // loop through all objects of the page
+ sal_Int32 nObjects = xPageObjects->getCount();
+ Reference< XControlShape > xControlShape;
+ Reference< XControlModel > xControlModel;
+ for (sal_Int32 i=0; i<nObjects; ++i)
+ {
+ if (xPageObjects->getByIndex(i) >>= xControlShape)
+ { // it _is_ a control shape
+ xControlModel = xControlShape->getControl();
+ DBG_ASSERT(xControlModel.is(), "OControlWizard::implDetermineShape: control shape without model!");
+ if (xModelCompare.get() == xControlModel.get())
+ {
+ m_aContext.xObjectShape = xControlShape;
+ break;
+ }
+ }
+ }
+ }
+
+
+ void OControlWizard::implDetermineForm()
+ {
+ Reference< XChild > xModelAsChild(m_aContext.xObjectModel, UNO_QUERY);
+ Reference< XInterface > xControlParent;
+ if (xModelAsChild.is())
+ xControlParent = xModelAsChild->getParent();
+
+ m_aContext.xForm.set(xControlParent, UNO_QUERY);
+ m_aContext.xRowSet.set(xControlParent, UNO_QUERY);
+ DBG_ASSERT(m_aContext.xForm.is() && m_aContext.xRowSet.is(),
+ "OControlWizard::implDetermineForm: missing some interfaces of the control parent!");
+
+ }
+
+
+ void OControlWizard::implDeterminePage()
+ {
+ try
+ {
+ // get the document model
+ Reference< XChild > xControlAsChild(m_aContext.xObjectModel, UNO_QUERY);
+ Reference< XChild > xModelSearch(xControlAsChild->getParent(), UNO_QUERY);
+
+ Reference< XModel > xModel(xModelSearch, UNO_QUERY);
+ while (xModelSearch.is() && !xModel.is())
+ {
+ xModelSearch.set(xModelSearch->getParent(), UNO_QUERY);
+ xModel.set(xModelSearch, UNO_QUERY);
+ }
+
+ Reference< XDrawPage > xPage;
+ if (xModel.is())
+ {
+ m_aContext.xDocumentModel = xModel;
+
+ Reference< XDrawPageSupplier > xPageSupp(xModel, UNO_QUERY);
+ if (xPageSupp.is())
+ { // it's a document with only one page -> Writer
+ xPage = xPageSupp->getDrawPage();
+ }
+ else
+ {
+ // get the controller currently working on this model
+ Reference< XController > xController = xModel->getCurrentController();
+ DBG_ASSERT(xController.is(), "OControlWizard::implDeterminePage: no current controller!");
+
+ // maybe it's a spreadsheet
+ Reference< XSpreadsheetView > xView(xController, UNO_QUERY);
+ if (xView.is())
+ { // okay, it is one
+ Reference< XSpreadsheet > xSheet = xView->getActiveSheet();
+ xPageSupp.set(xSheet, UNO_QUERY);
+ DBG_ASSERT(xPageSupp.is(), "OControlWizard::implDeterminePage: a spreadsheet which is no page supplier!");
+ if (xPageSupp.is())
+ xPage = xPageSupp->getDrawPage();
+ }
+ else
+ { // can be a draw/impress doc only
+ Reference< XDrawView > xDrawView(xController, UNO_QUERY);
+ DBG_ASSERT(xDrawView.is(), "OControlWizard::implDeterminePage: no alternatives left ... can't determine the page!");
+ if (xDrawView.is())
+ xPage = xDrawView->getCurrentPage();
+ }
+ }
+ }
+ else
+ {
+ DBG_ASSERT(xPage.is(), "OControlWizard::implDeterminePage: can't determine the page (no model)!");
+ }
+ m_aContext.xDrawPage = xPage;
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION("extensions.dbpilots", "OControlWizard::implDeterminePage");
+ }
+ }
+
+
+ void OControlWizard::implGetDSContext()
+ {
+ try
+ {
+ DBG_ASSERT(m_xContext.is(), "OControlWizard::implGetDSContext: invalid service factory!");
+
+ m_aContext.xDatasourceContext = DatabaseContext::create(m_xContext);
+ }
+ catch(const Exception&)
+ {
+ OSL_FAIL("OControlWizard::implGetDSContext: invalid database context!");
+ }
+ }
+
+
+ Reference< XConnection > OControlWizard::getFormConnection(const OAccessRegulator&) const
+ {
+ return getFormConnection();
+ }
+
+ Reference< XConnection > OControlWizard::getFormConnection() const
+ {
+ Reference< XConnection > xConn;
+ try
+ {
+ if ( !::dbtools::isEmbeddedInDatabase(m_aContext.xForm,xConn) )
+ m_aContext.xForm->getPropertyValue("ActiveConnection") >>= xConn;
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION("extensions.dbpilots", "OControlWizard::getFormConnection");
+ }
+ return xConn;
+ }
+
+
+ void OControlWizard::setFormConnection( const OAccessRegulator& _rAccess, const Reference< XConnection >& _rxConn, bool _bAutoDispose )
+ {
+ try
+ {
+ Reference< XConnection > xOldConn = getFormConnection(_rAccess);
+ if (xOldConn.get() == _rxConn.get())
+ return;
+
+ disposeComponent(xOldConn);
+
+ // set the new connection
+ if ( _bAutoDispose )
+ {
+ // for this, use an AutoDisposer (so the conn is cleaned up when the form dies or gets another connection)
+ Reference< XRowSet > xFormRowSet( m_aContext.xForm, UNO_QUERY );
+ new OAutoConnectionDisposer( xFormRowSet, _rxConn );
+ }
+ else
+ {
+ m_aContext.xForm->setPropertyValue("ActiveConnection", Any( _rxConn ) );
+ }
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.dbpilots", "OControlWizard::setFormConnection");
+ }
+ }
+
+
+ bool OControlWizard::updateContext(const OAccessRegulator&)
+ {
+ return initContext();
+ }
+
+ Reference< XInteractionHandler > OControlWizard::getInteractionHandler(weld::Window* _pWindow) const
+ {
+ Reference< XInteractionHandler > xHandler;
+ try
+ {
+ xHandler.set( InteractionHandler::createWithParent(m_xContext, nullptr), UNO_QUERY_THROW );
+ }
+ catch(const Exception&) { }
+ if (!xHandler.is())
+ {
+ ShowServiceNotAvailableError(_pWindow, u"com.sun.star.task.InteractionHandler", true);
+ }
+ return xHandler;
+ }
+
+ bool OControlWizard::initContext()
+ {
+ DBG_ASSERT(m_aContext.xObjectModel.is(), "OGroupBoxWizard::initContext: have no control model to work with!");
+ if (!m_aContext.xObjectModel.is())
+ return false;
+
+ // reset the context
+ m_aContext.xForm.clear();
+ m_aContext.xRowSet.clear();
+ m_aContext.xDocumentModel.clear();
+ m_aContext.xDrawPage.clear();
+ m_aContext.xObjectShape.clear();
+ m_aContext.aFieldNames.realloc(0);
+
+ m_aContext.xObjectContainer.clear();
+ m_aContext.aTypes.clear();
+ m_aContext.bEmbedded = false;
+
+ Any aSQLException;
+ Reference< XPreparedStatement > xStatement;
+ try
+ {
+ // get the datasource context
+ implGetDSContext();
+
+ // first, determine the form the control belongs to
+ implDetermineForm();
+
+ // need the page, too
+ implDeterminePage();
+
+ // the shape of the control
+ implDetermineShape();
+
+ // get the columns of the object the settings refer to
+ Reference< XNameAccess > xColumns;
+
+ if (m_aContext.xForm.is())
+ {
+ // collect some properties of the form
+ OUString sObjectName = ::comphelper::getString(m_aContext.xForm->getPropertyValue("Command"));
+ sal_Int32 nObjectType = ::comphelper::getINT32(m_aContext.xForm->getPropertyValue("CommandType"));
+
+ // calculate the connection the rowset is working with
+ Reference< XConnection > xConnection;
+ m_aContext.bEmbedded = ::dbtools::isEmbeddedInDatabase( m_aContext.xForm, xConnection );
+ if ( !m_aContext.bEmbedded )
+ xConnection = ::dbtools::connectRowset( m_aContext.xRowSet, m_xContext, nullptr );
+
+ // get the fields
+ if (xConnection.is())
+ {
+ switch (nObjectType)
+ {
+ case 0:
+ {
+ Reference< XTablesSupplier > xSupplyTables(xConnection, UNO_QUERY);
+ if (xSupplyTables.is() && xSupplyTables->getTables().is() && xSupplyTables->getTables()->hasByName(sObjectName))
+ {
+ Reference< XColumnsSupplier > xSupplyColumns;
+ m_aContext.xObjectContainer = xSupplyTables->getTables();
+ m_aContext.xObjectContainer->getByName(sObjectName) >>= xSupplyColumns;
+ DBG_ASSERT(xSupplyColumns.is(), "OControlWizard::initContext: invalid table columns!");
+ xColumns = xSupplyColumns->getColumns();
+ }
+ }
+ break;
+ case 1:
+ {
+ Reference< XQueriesSupplier > xSupplyQueries(xConnection, UNO_QUERY);
+ if (xSupplyQueries.is() && xSupplyQueries->getQueries().is() && xSupplyQueries->getQueries()->hasByName(sObjectName))
+ {
+ Reference< XColumnsSupplier > xSupplyColumns;
+ m_aContext.xObjectContainer = xSupplyQueries->getQueries();
+ m_aContext.xObjectContainer->getByName(sObjectName) >>= xSupplyColumns;
+ DBG_ASSERT(xSupplyColumns.is(), "OControlWizard::initContext: invalid query columns!");
+ xColumns = xSupplyColumns->getColumns();
+ }
+ }
+ break;
+ default:
+ {
+ xStatement = xConnection->prepareStatement(sObjectName);
+
+ // not interested in any results, only in the fields
+ Reference< XPropertySet > xStatementProps(xStatement, UNO_QUERY);
+ xStatementProps->setPropertyValue("MaxRows", Any(sal_Int32(0)));
+
+ // TODO: think about handling local SQLExceptions here ...
+ Reference< XColumnsSupplier > xSupplyCols(xStatement->executeQuery(), UNO_QUERY);
+ if (xSupplyCols.is())
+ xColumns = xSupplyCols->getColumns();
+ }
+ }
+ }
+ }
+
+ if (xColumns.is())
+ {
+ m_aContext.aFieldNames = xColumns->getElementNames();
+ const OUString* pBegin = m_aContext.aFieldNames.getConstArray();
+ const OUString* pEnd = pBegin + m_aContext.aFieldNames.getLength();
+ for(;pBegin != pEnd;++pBegin)
+ {
+ sal_Int32 nFieldType = DataType::OTHER;
+ try
+ {
+ Reference< XPropertySet > xColumn;
+ xColumns->getByName(*pBegin) >>= xColumn;
+ xColumn->getPropertyValue("Type") >>= nFieldType;
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION(
+ "extensions.dbpilots",
+ "unexpected exception while gathering column information!");
+ }
+ m_aContext.aTypes.emplace(*pBegin,nFieldType);
+ }
+ }
+ }
+ catch(const SQLContext& e) { aSQLException <<= e; }
+ catch(const SQLWarning& e) { aSQLException <<= e; }
+ catch(const SQLException& e) { aSQLException <<= e; }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.dbpilots", "OControlWizard::initContext: could not retrieve the control context");
+ }
+
+ ::comphelper::disposeComponent(xStatement);
+
+ if (aSQLException.hasValue())
+ { // an SQLException (or derivee) was thrown ...
+
+ // prepend an extra SQLContext explaining what we were doing
+ SQLContext aContext;
+ aContext.Message = compmodule::ModuleRes(RID_STR_COULDNOTOPENTABLE);
+ aContext.NextException = aSQLException;
+
+ // create an interaction handler to display this exception
+ Reference< XInteractionHandler > xHandler = getInteractionHandler(m_xAssistant.get());
+ if ( !xHandler.is() )
+ return false;
+
+ Reference< XInteractionRequest > xRequest = new OInteractionRequest(Any(aContext));
+ try
+ {
+ xHandler->handle(xRequest);
+ }
+ catch(const Exception&) { }
+ return false;
+ }
+
+ return m_aContext.aFieldNames.hasElements();
+ }
+
+
+ void OControlWizard::commitControlSettings(OControlWizardSettings const * _pSettings)
+ {
+ DBG_ASSERT(m_aContext.xObjectModel.is(), "OControlWizard::commitControlSettings: have no control model to work with!");
+ if (!m_aContext.xObjectModel.is())
+ return;
+
+ // the only thing we have at the moment is the label
+ try
+ {
+ Reference< XPropertySetInfo > xInfo = m_aContext.xObjectModel->getPropertySetInfo();
+ if (xInfo.is() && xInfo->hasPropertyByName("Label"))
+ {
+ OUString sControlLabel(_pSettings->sControlLabel);
+ m_aContext.xObjectModel->setPropertyValue(
+ "Label",
+ Any(sControlLabel)
+ );
+ }
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.dbpilots", "OControlWizard::commitControlSettings: could not commit the basic control settings!");
+ }
+ }
+
+
+ void OControlWizard::initControlSettings(OControlWizardSettings* _pSettings)
+ {
+ DBG_ASSERT(m_aContext.xObjectModel.is(), "OControlWizard::initControlSettings: have no control model to work with!");
+ if (!m_aContext.xObjectModel.is())
+ return;
+
+ // initialize some settings from the control model give
+ try
+ {
+ OUString sLabelPropertyName("Label");
+ Reference< XPropertySetInfo > xInfo = m_aContext.xObjectModel->getPropertySetInfo();
+ if (xInfo.is() && xInfo->hasPropertyByName(sLabelPropertyName))
+ {
+ OUString sControlLabel;
+ m_aContext.xObjectModel->getPropertyValue(sLabelPropertyName) >>= sControlLabel;
+ _pSettings->sControlLabel = sControlLabel;
+ }
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION( "extensions.dbpilots", "OControlWizard::initControlSettings: could not retrieve the basic control settings!");
+ }
+ }
+
+
+ bool OControlWizard::needDatasourceSelection()
+ {
+ // lemme see ...
+ return !getContext().aFieldNames.hasElements();
+ // if we got fields, the data source is valid ...
+ }
+
+
+} // namespace dbp
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */