WIP. Switching to the WTemplateFormView/WFormModel for settings
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emeric
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#include <Wt/WLineEdit>
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#include <Wt/WString>
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#include <Wt/WPushButton>
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#include <Wt/WCheckBox>
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#include <Wt/WComboBox>
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#include <Wt/WBreak>
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#include <Wt/WFormModel>
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#include <Wt/WStringListModel>
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#include "database/MediaDirectory.hpp"
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#include "service/ServiceManager.hpp"
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#include "service/DatabaseUpdateService.hpp"
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#include "common/DirectoryValidator.hpp"
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#include "SettingsDatabaseFormView.hpp"
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namespace UserInterface {
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namespace Settings {
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class DatabaseFormModel : public Wt::WFormModel
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{
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public:
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// Associate each field with a unique string literal.
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static const Field PathField;
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static const Field UpdatePeriodField;
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static const Field UpdateStartTimeField;
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static const Field UpdateRequestImmediateField;
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DatabaseFormModel(SessionData& sessionData, Wt::WObject *parent = 0)
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: Wt::WFormModel(parent),
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_sessionData(sessionData)
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{
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initializeModels();
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addField(PathField);
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addField(UpdatePeriodField);
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addField(UpdateStartTimeField);
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addField(UpdateRequestImmediateField);
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setValidator(PathField, createPathValidator(PathField));
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setValidator(UpdatePeriodField, createUpdatePeriodValidator(UpdatePeriodField));
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setValidator(UpdateStartTimeField, createStartTimeValidator(UpdateStartTimeField));
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setValidator(UpdateRequestImmediateField, createRequestImmediateFieldValidator(UpdateRequestImmediateField));
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// populate the model with initial data
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loadData();
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}
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Wt::WAbstractItemModel *updatePeriodModel() { return _updatePeriodModel; }
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Wt::WAbstractItemModel *updateStartTimeModel() { return _updateStartTimeModel; }
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void loadData()
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{
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Wt::Dbo::Transaction transaction(_sessionData.getDatabaseHandler().getSession());
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// Get directories
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std::vector<::Database::MediaDirectory::pointer> directories = ::Database::MediaDirectory::getAll(_sessionData.getDatabaseHandler().getSession());
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BOOST_FOREACH(::Database::MediaDirectory::pointer directory, directories)
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{
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setValue(PathField, directory->getPath().string() );
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// TODO, handle multiple directories
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break;
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}
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// Get refresh settings
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::Database::MediaDirectorySettings::pointer settings = ::Database::MediaDirectorySettings::get(_sessionData.getDatabaseHandler().getSession());
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int periodRow = getUpdatePeriodModelRow( settings->getUpdatePeriod() );
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if (periodRow != -1)
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setValue(UpdatePeriodField, updatePeriod(periodRow));
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int startTimeRow = getUpdateStartTimeModelRow( settings->getUpdateStartTime() );
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if (startTimeRow != -1)
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setValue(UpdateStartTimeField, updateStartTime( startTimeRow ) );
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setValue(UpdateRequestImmediateField, settings->getManualScanRequested() );
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}
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void saveData()
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{
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Wt::Dbo::Session& session( _sessionData.getDatabaseHandler().getSession());
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Wt::Dbo::Transaction transaction(session);
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::Database::MediaDirectory::eraseAll( session );
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::Database::MediaDirectory::create(session, valueText(PathField).toUTF8(), ::Database::MediaDirectory::Audio);
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::Database::MediaDirectorySettings::pointer settings = ::Database::MediaDirectorySettings::get(_sessionData.getDatabaseHandler().getSession() );
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int periodRow = getUpdatePeriodModelRow( boost::any_cast<Wt::WString>(value(UpdatePeriodField)));
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assert(periodRow != -1);
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settings.modify()->setUpdatePeriod( updatePeriodDuration( periodRow ) );
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int startTimeRow = getUpdateStartTimeModelRow( boost::any_cast<Wt::WString>(value(UpdateStartTimeField)));
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assert(startTimeRow != -1);
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settings.modify()->setUpdateStartTime( updateStartTimeDuration( startTimeRow ) );
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settings.modify()->setManualScanRequested( boost::any_cast<bool>(value(UpdateRequestImmediateField )) );
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}
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int getUpdatePeriodModelRow(Wt::WString value)
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{
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for (int i = 0; i < _updatePeriodModel->rowCount(); ++i)
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{
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if (updatePeriod(i) == value)
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return i;
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}
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return -1;
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}
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int getUpdatePeriodModelRow(boost::posix_time::time_duration duration)
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{
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for (int i = 0; i < _updatePeriodModel->rowCount(); ++i)
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{
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if (updatePeriodDuration(i) == duration)
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return i;
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}
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return -1;
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}
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boost::posix_time::time_duration updatePeriodDuration(int row) {
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return boost::any_cast<boost::posix_time::time_duration>
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(_updatePeriodModel->data(_updatePeriodModel->index(row, 0), Wt::UserRole));
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}
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Wt::WString updatePeriod(int row) {
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return boost::any_cast<Wt::WString>
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(_updatePeriodModel->data(_updatePeriodModel->index(row, 0), Wt::DisplayRole));
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}
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int getUpdateStartTimeModelRow(Wt::WString value)
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{
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for (int i = 0; i < _updateStartTimeModel->rowCount(); ++i)
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{
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if (updateStartTime(i) == value)
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return i;
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}
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return -1;
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}
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int getUpdateStartTimeModelRow(boost::posix_time::time_duration duration)
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{
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for (int i = 0; i < _updateStartTimeModel->rowCount(); ++i)
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{
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if (updateStartTimeDuration(i) == duration)
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return i;
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}
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return -1;
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}
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boost::posix_time::time_duration updateStartTimeDuration(int row) {
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return boost::any_cast<boost::posix_time::time_duration>
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(_updateStartTimeModel->data(_updateStartTimeModel->index(row, 0), Wt::UserRole));
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}
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Wt::WString updateStartTime(int row) {
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return boost::any_cast<Wt::WString>
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(_updateStartTimeModel->data(_updateStartTimeModel->index(row, 0), Wt::DisplayRole));
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}
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private:
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void initializeModels() {
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_updatePeriodModel = new Wt::WStringListModel(this);
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_updatePeriodModel->addString("Never");
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_updatePeriodModel->setData(0, 0, boost::posix_time::time_duration( boost::posix_time::hours(0) ), Wt::UserRole);
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_updatePeriodModel->addString("Daily");
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_updatePeriodModel->setData(1, 0, boost::posix_time::time_duration( boost::posix_time::hours(24) ), Wt::UserRole);
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_updatePeriodModel->addString("Weekly");
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_updatePeriodModel->setData(2, 0, boost::posix_time::time_duration( boost::posix_time::hours(24*7) ), Wt::UserRole);
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_updatePeriodModel->addString("Monthly");
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_updatePeriodModel->setData(3, 0, boost::posix_time::time_duration(boost::posix_time::hours(24*30) ), Wt::UserRole);
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_updateStartTimeModel = new Wt::WStringListModel(this);
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for (std::size_t i = 0; i < 24; ++i)
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{
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boost::posix_time::time_duration dur = boost::posix_time::hours(i);
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boost::posix_time::time_facet* facet = new boost::posix_time::time_facet("%H:%M");
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facet->time_duration_format("%H:%M");
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std::ostringstream oss;
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oss.imbue(std::locale(oss.getloc(), facet));
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oss << dur;
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_updateStartTimeModel->addString( oss.str() );
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_updateStartTimeModel->setData(i, 0, dur, Wt::UserRole);
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}
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}
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Wt::WValidator *createPathValidator(const std::string& field) {
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DirectoryValidator* v = new DirectoryValidator();
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v->setMandatory(true);
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return v;
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}
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Wt::WValidator *createUpdatePeriodValidator(const std::string& field) {
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Wt::WValidator* v = new Wt::WValidator();
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v->setMandatory(true);
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return v;
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}
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Wt::WValidator *createStartTimeValidator(const std::string& field) {
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Wt::WValidator* v = new Wt::WValidator();
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v->setMandatory(true);
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return v;
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}
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Wt::WValidator *createRequestImmediateFieldValidator(const std::string& field) {
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Wt::WValidator* v = new Wt::WValidator();
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return v;
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}
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SessionData& _sessionData;
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Wt::WStringListModel* _updatePeriodModel;
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Wt::WStringListModel* _updateStartTimeModel;
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};
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const Wt::WFormModel::Field DatabaseFormModel::PathField = "path";
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const Wt::WFormModel::Field DatabaseFormModel::UpdatePeriodField = "update-period";
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const Wt::WFormModel::Field DatabaseFormModel::UpdateStartTimeField = "update-start-time";
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const Wt::WFormModel::Field DatabaseFormModel::UpdateRequestImmediateField = "update-request-immediate-scan";
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DatabaseFormView::DatabaseFormView(SessionData& sessionData, Wt::WContainerWidget *parent)
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: Wt::WTemplateFormView(parent)
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{
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model = new DatabaseFormModel(sessionData, this);
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setTemplateText(tr("databaseForm-template"));
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addFunction("id", &WTemplate::Functions::id);
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addFunction("block", &WTemplate::Functions::id);
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// Path
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setFormWidget(DatabaseFormModel::PathField, new Wt::WLineEdit());
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// Update Period
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Wt::WComboBox *updatePeriodCB = new Wt::WComboBox();
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setFormWidget(DatabaseFormModel::UpdatePeriodField, updatePeriodCB);
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updatePeriodCB->setModel(model->updatePeriodModel());
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// Update Start Time
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Wt::WComboBox *updateStartTimeCB = new Wt::WComboBox();
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setFormWidget(DatabaseFormModel::UpdateStartTimeField, updateStartTimeCB);
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updateStartTimeCB->setModel(model->updateStartTimeModel());
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// Request Immediate scan
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setFormWidget(DatabaseFormModel::UpdateRequestImmediateField, new Wt::WCheckBox());
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// Title & Buttons
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Wt::WString title = Wt::WString("Media directories settings");
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bindString("title", title);
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Wt::WPushButton *saveButton = new Wt::WPushButton("Apply");
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bindWidget("apply-button", saveButton);
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saveButton->setStyleClass("btn-primary");
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Wt::WPushButton *discardButton = new Wt::WPushButton("Discard");
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bindWidget("discard-button", discardButton);
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applyInfo = new Wt::WText();
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applyInfo->setInline(false);
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applyInfo->hide();
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bindWidget("apply-info", applyInfo);
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saveButton->clicked().connect(this, &DatabaseFormView::processSave);
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discardButton->clicked().connect(this, &DatabaseFormView::processDiscard);
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updateView(model);
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}
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void
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DatabaseFormView::processDiscard()
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{
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applyInfo->show();
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applyInfo->setText( Wt::WString::fromUTF8("Parameters reverted!"));
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applyInfo->setStyleClass("alert alert-info");
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model->loadData();
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model->validate();
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updateView(model);
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}
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void
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DatabaseFormView::processSave()
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{
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updateModel(model);
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applyInfo->show();
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if (model->validate()) {
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// Make the model to commit data into DB
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model->saveData();
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// Restarting the update service
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{
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boost::lock_guard<boost::mutex> serviceLock (ServiceManager::instance().mutex());
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DatabaseUpdateService::pointer service = ServiceManager::instance().getService<DatabaseUpdateService>();
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if (service)
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service->restart();
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}
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applyInfo->setText( Wt::WString::fromUTF8("New parameters successfully applied!"));
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applyInfo->setStyleClass("alert alert-success");
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// Udate the view: Delete any validation message in the view, etc.
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updateView(model);
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} else {
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applyInfo->setText( Wt::WString::fromUTF8("Cannot apply new parameters!"));
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applyInfo->setStyleClass("alert alert-danger");
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updateView(model);
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}
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}
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} // namespace Settings
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} // namespace UserInterface
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