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QxDaoAsync.h
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    00001 /****************************************************************************
    00002 **
    00003 ** https://www.qxorm.com/
    00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
    00005 **
    00006 ** This file is part of the QxOrm library
    00007 **
    00008 ** This software is provided 'as-is', without any express or implied
    00009 ** warranty. In no event will the authors be held liable for any
    00010 ** damages arising from the use of this software
    00011 **
    00012 ** Commercial Usage
    00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
    00014 ** accordance with the commercial license agreement provided with the
    00015 ** Software or, alternatively, in accordance with the terms contained in
    00016 ** a written agreement between you and Lionel Marty
    00017 **
    00018 ** GNU General Public License Usage
    00019 ** Alternatively, this file may be used under the terms of the GNU
    00020 ** General Public License version 3.0 as published by the Free Software
    00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
    00022 ** packaging of this file. Please review the following information to
    00023 ** ensure the GNU General Public License version 3.0 requirements will be
    00024 ** met : http://www.gnu.org/copyleft/gpl.html
    00025 **
    00026 ** If you are unsure which license is appropriate for your use, or
    00027 ** if you have questions regarding the use of this file, please contact :
    00028 ** contact@qxorm.com
    00029 **
    00030 ****************************************************************************/
    00031
    00032 #ifndef _QX_DAO_ASYNC_H_
    00033 #define _QX_DAO_ASYNC_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #ifdef _QX_NO_PRECOMPILED_HEADER
    00047 #ifndef Q_MOC_RUN
    00048 #include <QxPrecompiled.h> // Need to include precompiled header for the generated moc file
    00049 #endif // Q_MOC_RUN
    00050 #endif // _QX_NO_PRECOMPILED_HEADER
    00051
    00052 #include <QtCore/qqueue.h>
    00053
    00054 #include <QtSql/qsqlerror.h>
    00055
    00056 #ifndef Q_MOC_RUN
    00057 #include <QxDao/IxPersistable.h>
    00058 #include <QxDao/QxSqlQuery.h>
    00059 #endif // Q_MOC_RUN
    00060
    00061 namespace qx {
    00062 namespace dao {
    00063 namespace detail {
    00064
    00069 struct QxDaoAsyncParams
    00070 {
    00071
    00072    enum dao_action { dao_none, dao_count, dao_fetch_by_id, dao_fetch_all, dao_fetch_by_query, dao_insert,
    00073                      dao_update, dao_save, dao_delete_by_id, dao_delete_all, dao_delete_by_query,
    00074                      dao_destroy_by_id, dao_destroy_all, dao_destroy_by_query, dao_execute_query, dao_call_query };
    00075
    00076    dao_action                    daoAction;
    00077    QString                       className;
    00078    qx::QxSqlQuery                query;
    00079    QSqlDatabase *                pDatabase;
    00080    IxPersistable_ptr             pInstance;
    00081    IxPersistableCollection_ptr   pListOfInstances;
    00082    QStringList                   listColumns;
    00083    QStringList                   listRelations;
    00084    QVariant                      id;
    00085    long                          daoCount;
    00086
    00087    QxDaoAsyncParams() : daoAction(dao_none), pDatabase(NULL), daoCount(0) { ; }
    00088    ~QxDaoAsyncParams() { ; }
    00089
    00090 };
    00091
    00092 typedef std::shared_ptr<QxDaoAsyncParams> QxDaoAsyncParams_ptr;
    00093
    00098 class QX_DLL_EXPORT QxDaoAsyncRunner : public QObject
    00099 {
    00100
    00101    Q_OBJECT
    00102
    00103 public:
    00104
    00105    QxDaoAsyncRunner();
    00106    virtual ~QxDaoAsyncRunner();
    00107
    00108 protected:
    00109
    00110    QSqlError runQuery(qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00111
    00112 Q_SIGNALS:
    00113
    00114    void queryFinished(const QSqlError & daoError, qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00115
    00116 public Q_SLOTS:
    00117
    00118    void onQueryStarted(qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00119
    00120 };
    00121
    00122 } // namespace detail
    00123 } // namespace dao
    00124
    00169 class QX_DLL_EXPORT QxDaoAsync : public QThread
    00170 {
    00171
    00172    Q_OBJECT
    00173
    00174 protected:
    00175
    00176    QMutex m_mutex;
    00177    qx::dao::detail::QxDaoAsyncParams_ptr m_pDaoParams;
    00178
    00179 public:
    00180
    00181    QxDaoAsync();
    00182    virtual ~QxDaoAsync();
    00183
    00184    bool asyncCount(const QString & className, const qx::QxSqlQuery & query = qx::QxSqlQuery(), QSqlDatabase * pDatabase = NULL);
    00185    bool asyncFetchById(IxPersistable_ptr pToFetch, const QVariant & id = QVariant(), const QStringList & columns = QStringList(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00186    bool asyncFetchAll(const QString & className, const QStringList & columns = QStringList(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00187    bool asyncFetchByQuery(const QString & className, const qx::QxSqlQuery & query, const QStringList & columns = QStringList(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00188    bool asyncInsert(IxPersistable_ptr pToInsert, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00189    bool asyncUpdate(IxPersistable_ptr pToUpdate, const qx::QxSqlQuery & query = qx::QxSqlQuery(), const QStringList & columns = QStringList(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00190    bool asyncSave(IxPersistable_ptr pToSave, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL);
    00191    bool asyncDeleteById(IxPersistable_ptr pToDelete, const QVariant & id = QVariant(), QSqlDatabase * pDatabase = NULL);
    00192    bool asyncDeleteAll(const QString & className, QSqlDatabase * pDatabase = NULL);
    00193    bool asyncDeleteByQuery(const QString & className, const qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL);
    00194    bool asyncDestroyById(IxPersistable_ptr pToDestroy, const QVariant & id = QVariant(), QSqlDatabase * pDatabase = NULL);
    00195    bool asyncDestroyAll(const QString & className, QSqlDatabase * pDatabase = NULL);
    00196    bool asyncDestroyByQuery(const QString & className, const qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL);
    00197    bool asyncExecuteQuery(const QString & className, qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL);
    00198    bool asyncCallQuery(qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL);
    00199
    00200    bool isQueryRunning() const { return (m_pDaoParams.get() != NULL); }
    00201
    00202 protected:
    00203
    00204    virtual void run();
    00205
    00206    void startQuery();
    00207
    00208 Q_SIGNALS:
    00209
    00210    void queryStarted(qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00211    void queryFinished(const QSqlError & daoError, qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00212
    00213 private Q_SLOTS:
    00214
    00215    void onQueryFinished(const QSqlError & daoError, qx::dao::detail::QxDaoAsyncParams_ptr pDaoParams);
    00216
    00217 };
    00218
    00219 typedef std::shared_ptr<QxDaoAsync> QxDaoAsync_ptr;
    00220
    00221 } // namespace qx
    00222
    00223 QX_DLL_EXPORT QDataStream & operator<< (QDataStream & stream, const qx::dao::detail::QxDaoAsyncParams & t) QX_USED;
    00224 QX_DLL_EXPORT QDataStream & operator>> (QDataStream & stream, qx::dao::detail::QxDaoAsyncParams & t) QX_USED;
    00225
    00226 #endif // _QX_DAO_ASYNC_H_