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QxOrm
1.4.8
C++ Object Relational Mapping library
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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 _IX_SQL_ELEMENT_H_ 00033 #define _IX_SQL_ELEMENT_H_ 00034 00035 #ifdef _MSC_VER 00036 #pragma once 00037 #endif 00038 00046 #ifdef _QX_ENABLE_BOOST_SERIALIZATION 00047 #include <boost/serialization/serialization.hpp> 00048 #include <boost/serialization/split_free.hpp> 00049 #include <boost/serialization/nvp.hpp> 00050 #endif // _QX_ENABLE_BOOST_SERIALIZATION 00051 00052 #include <QtCore/qdatastream.h> 00053 00054 #ifndef _QX_NO_JSON 00055 #include <QtCore/qjsonvalue.h> 00056 #endif // _QX_NO_JSON 00057 00058 #include <QtSql/qsqlquery.h> 00059 00060 #include <QxDao/QxSqlGenerator/IxSqlGenerator.h> 00061 00062 #include <QxSerialize/Qt/QxSerialize_QList.h> 00063 #include <QxSerialize/Qt/QxSerialize_QStringList.h> 00064 #include <QxSerialize/Qt/QxSerialize_QVariant.h> 00065 00066 #include <QxConvert/QxConvert.h> 00067 00068 namespace qx { 00069 namespace dao { 00070 namespace detail { 00071 class IxSqlElement; 00072 } // namespace detail 00073 } // namespace dao 00074 } // namespace qx 00075 00076 QX_DLL_EXPORT QDataStream & operator<< (QDataStream & stream, const qx::dao::detail::IxSqlElement & t) QX_USED; 00077 QX_DLL_EXPORT QDataStream & operator>> (QDataStream & stream, qx::dao::detail::IxSqlElement & t) QX_USED; 00078 00079 #ifndef _QX_NO_JSON 00080 namespace qx { 00081 namespace cvt { 00082 namespace detail { 00083 template <> struct QxConvert_ToJson< qx::dao::detail::IxSqlElement >; 00084 template <> struct QxConvert_FromJson< qx::dao::detail::IxSqlElement >; 00085 QX_DLL_EXPORT QJsonValue QxConvert_ToJson_Helper(const qx::dao::detail::IxSqlElement & t, const QString & format) QX_USED; 00086 QX_DLL_EXPORT qx_bool QxConvert_FromJson_Helper(const QJsonValue & j, qx::dao::detail::IxSqlElement & t, const QString & format) QX_USED; 00087 } // namespace detail 00088 } // namespace cvt 00089 } // namespace qx 00090 #endif // _QX_NO_JSON 00091 00092 namespace qx { 00093 namespace dao { 00094 namespace detail { 00095 00100 class QX_DLL_EXPORT IxSqlElement 00101 { 00102 00103 friend QX_DLL_EXPORT QDataStream & ::operator<< (QDataStream & stream, const qx::dao::detail::IxSqlElement & t); 00104 friend QX_DLL_EXPORT QDataStream & ::operator>> (QDataStream & stream, qx::dao::detail::IxSqlElement & t); 00105 00106 #ifndef _QX_NO_JSON 00107 friend struct qx::cvt::detail::QxConvert_ToJson< qx::dao::detail::IxSqlElement >; 00108 friend struct qx::cvt::detail::QxConvert_FromJson< qx::dao::detail::IxSqlElement >; 00109 friend QX_DLL_EXPORT QJsonValue qx::cvt::detail::QxConvert_ToJson_Helper(const qx::dao::detail::IxSqlElement & t, const QString & format); 00110 friend QX_DLL_EXPORT qx_bool qx::cvt::detail::QxConvert_FromJson_Helper(const QJsonValue & j, qx::dao::detail::IxSqlElement & t, const QString & format); 00111 #endif // _QX_NO_JSON 00112 00113 public: 00114 00115 enum type_class { _no_type, _sql_compare, _sql_element_temp, _sql_expression, _sql_free_text, 00116 _sql_in, _sql_is_between, _sql_is_null, _sql_limit, _sql_sort, _sql_embed_query }; 00117 00118 protected: 00119 00120 int m_iIndex; 00121 QStringList m_lstColumns; 00122 QStringList m_lstKeys; 00123 QList<QVariant> m_lstValues; 00124 IxSqlGenerator * m_pSqlGenerator; 00125 00126 public: 00127 00128 IxSqlElement(int index); 00129 virtual ~IxSqlElement(); 00130 00131 void setColumn(const QString & column); 00132 void setColumns(const QStringList & columns); 00133 void setValue(const QVariant & val); 00134 void setValues(const QVariantList & values); 00135 00136 virtual IxSqlElement::type_class getTypeClass() const = 0; 00137 00138 virtual QString toString() const = 0; 00139 virtual void resolve(QSqlQuery & query) const = 0; 00140 virtual void postProcess(QString & sql) const = 0; 00141 00142 virtual void clone(IxSqlElement * other); 00143 00144 #ifdef _QX_ENABLE_BOOST_SERIALIZATION 00145 template <class Archive> 00146 void qxSave(Archive & ar) const 00147 { 00148 QString sExtraSettings = getExtraSettings(); 00149 ar << boost::serialization::make_nvp("index", m_iIndex); 00150 ar << boost::serialization::make_nvp("list_columns", m_lstColumns); 00151 ar << boost::serialization::make_nvp("list_keys", m_lstKeys); 00152 ar << boost::serialization::make_nvp("list_values", m_lstValues); 00153 ar << boost::serialization::make_nvp("extra_settings", sExtraSettings); 00154 } 00155 #endif // _QX_ENABLE_BOOST_SERIALIZATION 00156 00157 #ifdef _QX_ENABLE_BOOST_SERIALIZATION 00158 template <class Archive> 00159 void qxLoad(Archive & ar) 00160 { 00161 QString sExtraSettings; 00162 ar >> boost::serialization::make_nvp("index", m_iIndex); 00163 ar >> boost::serialization::make_nvp("list_columns", m_lstColumns); 00164 ar >> boost::serialization::make_nvp("list_keys", m_lstKeys); 00165 ar >> boost::serialization::make_nvp("list_values", m_lstValues); 00166 ar >> boost::serialization::make_nvp("extra_settings", sExtraSettings); 00167 setExtraSettings(sExtraSettings); 00168 } 00169 #endif // _QX_ENABLE_BOOST_SERIALIZATION 00170 00171 protected: 00172 00173 void updateKeys(); 00174 00175 virtual QString getExtraSettings() const = 0; 00176 virtual void setExtraSettings(const QString & s) = 0; 00177 00178 }; 00179 00180 typedef std::shared_ptr<IxSqlElement> IxSqlElement_ptr; 00181 00182 QX_DLL_EXPORT IxSqlElement_ptr create_sql_element(IxSqlElement::type_class e) QX_USED; 00183 00184 } // namespace detail 00185 } // namespace dao 00186 } // namespace qx 00187 00188 #endif // _IX_SQL_ELEMENT_H_