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QxSqlRelationLinked.h
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    00001 /****************************************************************************
    00002 **
    00003 ** http://www.qxorm.com/
    00004 ** http://sourceforge.net/projects/qxorm/
    00005 ** Original file by Lionel Marty
    00006 **
    00007 ** This file is part of the QxOrm library
    00008 **
    00009 ** This software is provided 'as-is', without any express or implied
    00010 ** warranty. In no event will the authors be held liable for any
    00011 ** damages arising from the use of this software.
    00012 **
    00013 ** GNU Lesser General Public License Usage
    00014 ** This file must be used under the terms of the GNU Lesser
    00015 ** General Public License version 2.1 as published by the Free Software
    00016 ** Foundation and appearing in the file 'license.lgpl.txt' included in the
    00017 ** packaging of this file.  Please review the following information to
    00018 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00019 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00020 **
    00021 ** If you have questions regarding the use of this file, please contact :
    00022 ** contact@qxorm.com
    00023 **
    00024 ****************************************************************************/
    00025
    00026 #ifndef _QX_SQL_RELATION_LINKED_H_
    00027 #define _QX_SQL_RELATION_LINKED_H_
    00028
    00029 #ifdef _MSC_VER
    00030 #pragma once
    00031 #endif
    00032
    00040 #include <boost/tuple/tuple.hpp>
    00041 #include <boost/tuple/tuple_comparison.hpp>
    00042 #include <boost/tuple/tuple_io.hpp>
    00043
    00044 #include <QtSql/qsqlerror.h>
    00045
    00046 #include <QxCommon/QxBool.h>
    00047
    00048 #include <QxDao/IxSqlRelation.h>
    00049
    00050 #include <QxCollection/QxCollection.h>
    00051
    00052 namespace qx {
    00053
    00080 class QX_DLL_EXPORT QxSqlRelationLinked
    00081 {
    00082
    00083 protected:
    00084
    00085    typedef boost::shared_ptr<QxSqlRelationLinked> type_ptr;
    00086    typedef boost::tuple<qx::dao::sql_join::join_type, IxSqlRelation *> type_relation;
    00087    typedef qx::QxCollection<QString, type_relation> type_lst_relation;
    00088    typedef QHash<QString, type_ptr> type_lst_relation_linked;
    00089
    00090    type_lst_relation m_relationX;
    00091    type_lst_relation_linked m_relationLinkedX;
    00092    IxSqlRelationX * m_allRelationX;
    00093    bool m_bRoot;
    00094
    00095 public:
    00096
    00097    QxSqlRelationLinked();
    00098    QxSqlRelationLinked(bool bRoot);
    00099    virtual ~QxSqlRelationLinked();
    00100
    00101    qx_bool buildHierarchy(IxSqlRelationX * pRelationX, const QStringList & sRelationX);
    00102
    00103    void hierarchySelect(QxSqlRelationParams & params);
    00104    void hierarchyFrom(QxSqlRelationParams & params);
    00105    void hierarchyJoin(QxSqlRelationParams & params);
    00106    void hierarchyWhereSoftDelete(QxSqlRelationParams & params);
    00107    void hierarchyResolveOutput(QxSqlRelationParams & params);
    00108    QSqlError hierarchyOnBeforeSave(QxSqlRelationParams & params);
    00109    QSqlError hierarchyOnAfterSave(QxSqlRelationParams & params);
    00110
    00111    bool getCartesianProduct() const;
    00112    long getAllRelationCount() const;
    00113    long getRelationCount() const;
    00114
    00115 protected:
    00116
    00117    qx_bool insertRelationToHierarchy(const QStringList & sRelationX, const QString & sKey, qx::dao::sql_join::join_type eJoinType);
    00118
    00119 };
    00120
    00121 typedef boost::shared_ptr<QxSqlRelationLinked> QxSqlRelationLinked_ptr;
    00122
    00123 } // namespace qx
    00124
    00125 #endif // _QX_SQL_RELATION_LINKED_H_