DataObject.hpp

#ifndef H_EXTENSIONS_CUTEHMI_DATAACQUISITION_0_INCLUDE_CUTEHMI_DATAACQUISITION_DATAOBJECT_HPP
#define H_EXTENSIONS_CUTEHMI_DATAACQUISITION_0_INCLUDE_CUTEHMI_DATAACQUISITION_DATAOBJECT_HPP
 
#include "internal/common.hpp"
 
#include <cutehmi/InplaceError.hpp>
#include <cutehmi/shareddatabase/DatabaseWorker.hpp>
 
#include <QObject>
#include <QVector>
#include <QSqlQuery>
#include <QSqlError>
#include <QMutex>
 
namespace cutehmi {
namespace dataacquisition {
 
class CUTEHMI_DATAACQUISITION_API DataObject:
    public QObject
{
        Q_OBJECT
 
    public:
        Q_PROPERTY(QString connectionName READ connectionName WRITE setConnectionName RESET resetConnectionName NOTIFY connectionNameChanged)
 
        
        Q_PROPERTY(bool busy READ busy NOTIFY busyChanged)
 
        DataObject(QObject * parent = nullptr);
 
        QString connectionName() const;
 
        void setConnectionName(const QString & connectionName);
 
        void resetConnectionName();
 
        bool busy() const;
 
    signals:
        void connectionNameChanged();
 
        void busyChanged();
 
        void errored(cutehmi::InplaceError error);
 
    protected:
        void pushError(const QSqlError & sqlError);
 
        shareddatabase::DatabaseWorker * worker(std::function<void(QSqlDatabase & db)> task) const;
 
    protected slots:
        void incrementBusy();
 
        void decrementBusy();
 
        virtual void processErrors();
 
        void printError(cutehmi::InplaceError error) const;
 
    private slots:
        void onDatabaseWorkerStriked(const QString & reason);
 
    private:
        typedef QVector<QSqlError> SQLErrorsContainer;
 
        struct Members
        {
            QString connectionName;
            mutable QMutex sqlErrorsMutex;
            SQLErrorsContainer sqlErrors;
            int busy;
 
            Members():
                busy(0)
            {
            }
        };
 
        MPtr<Members> m;
};
 
}
}
 
#endif
 
//(c)C: Copyright © 2020, Michał Policht <michal@policht.pl>. All rights reserved.
//(c)C: This file is a part of CuteHMI.
//(c)C: CuteHMI is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
//(c)C: CuteHMI is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
//(c)C: You should have received a copy of the GNU Lesser General Public License along with CuteHMI.  If not, see <https://www.gnu.org/licenses/>.