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IxSqlElement.h
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    00001 /****************************************************************************
    00002 **
    00003 ** http://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 _IX_SQL_ELEMENT_H_
    00033 #define _IX_SQL_ELEMENT_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #include <boost/serialization/serialization.hpp>
    00047 #include <boost/serialization/split_free.hpp>
    00048 #include <boost/serialization/version.hpp>
    00049 #include <boost/serialization/nvp.hpp>
    00050
    00051 #include <QtSql/qsqlquery.h>
    00052
    00053 #include <QxDao/QxSqlGenerator/IxSqlGenerator.h>
    00054
    00055 #include <QxSerialize/Qt/QxSerialize_QList.h>
    00056 #include <QxSerialize/Qt/QxSerialize_QStringList.h>
    00057 #include <QxSerialize/Qt/QxSerialize_QVariant.h>
    00058
    00059 namespace qx {
    00060 namespace dao {
    00061 namespace detail {
    00062
    00067 class QX_DLL_EXPORT IxSqlElement
    00068 {
    00069
    00070 public:
    00071
    00072    enum type_class { _no_type, _sql_compare, _sql_element_temp, _sql_expression, _sql_free_text,
    00073                      _sql_in, _sql_is_between, _sql_is_null, _sql_limit, _sql_sort };
    00074
    00075 protected:
    00076
    00077    int               m_iIndex;
    00078    QStringList       m_lstColumns;
    00079    QStringList       m_lstKeys;
    00080    QList<QVariant>   m_lstValues;
    00081    IxSqlGenerator *  m_pSqlGenerator;
    00082
    00083 public:
    00084
    00085    IxSqlElement(int index);
    00086    virtual ~IxSqlElement();
    00087
    00088    void setColumn(const QString & column);
    00089    void setColumns(const QStringList & columns);
    00090    void setValue(const QVariant & val);
    00091    void setValues(const QVariantList & values);
    00092
    00093    virtual IxSqlElement::type_class getTypeClass() const = 0;
    00094
    00095    virtual QString toString() const = 0;
    00096    virtual void resolve(QSqlQuery & query) const = 0;
    00097    virtual void postProcess(QString & sql) const = 0;
    00098
    00099    virtual void clone(IxSqlElement * other);
    00100
    00101    template <class Archive>
    00102    void qxSave(Archive & ar) const
    00103    {
    00104       QString sExtraSettings = getExtraSettings();
    00105       ar << boost::serialization::make_nvp("index", m_iIndex);
    00106       ar << boost::serialization::make_nvp("list_columns", m_lstColumns);
    00107       ar << boost::serialization::make_nvp("list_keys", m_lstKeys);
    00108       ar << boost::serialization::make_nvp("list_values", m_lstValues);
    00109       ar << boost::serialization::make_nvp("extra_settings", sExtraSettings);
    00110    }
    00111
    00112    template <class Archive>
    00113    void qxLoad(Archive & ar)
    00114    {
    00115       QString sExtraSettings;
    00116       ar >> boost::serialization::make_nvp("index", m_iIndex);
    00117       ar >> boost::serialization::make_nvp("list_columns", m_lstColumns);
    00118       ar >> boost::serialization::make_nvp("list_keys", m_lstKeys);
    00119       ar >> boost::serialization::make_nvp("list_values", m_lstValues);
    00120       ar >> boost::serialization::make_nvp("extra_settings", sExtraSettings);
    00121       setExtraSettings(sExtraSettings);
    00122    }
    00123
    00124 protected:
    00125
    00126    void updateKeys();
    00127
    00128    virtual QString getExtraSettings() const = 0;
    00129    virtual void setExtraSettings(const QString & s) = 0;
    00130
    00131 };
    00132
    00133 typedef boost::shared_ptr<IxSqlElement> IxSqlElement_ptr;
    00134
    00135 } // namespace detail
    00136 } // namespace dao
    00137 } // namespace qx
    00138
    00139 #endif // _IX_SQL_ELEMENT_H_