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include/QxDao/IxDao_Helper.h
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include/QxDao/IxDao_Helper.h
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/****************************************************************************
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**
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** https://www.qxorm.com/
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** Copyright (C) 2013 XDL Team (ic-east.com)
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**
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** This file is part of the QxOrm library
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any
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** damages arising from the use of this software
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**
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** Commercial Usage
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** Licensees holding valid commercial QxOrm licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and XDL Team
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file 'license.gpl3.txt' included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met : http://www.gnu.org/copyleft/gpl.html
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**
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** If you are unsure which license is appropriate for your use, or
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** if you have questions regarding the use of this file, please contact :
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** ic-east.com
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**
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****************************************************************************/
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#ifndef _IX_DAO_HELPER_H_
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#define _IX_DAO_HELPER_H_
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#ifdef _MSC_VER
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#pragma once
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#endif
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/*!
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* \file IxDao_Helper.h
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* \author XDL Team
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* \ingroup QxDao
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* \brief Helper class to communicate with database
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*/
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#include <QtSql/qsqldatabase.h>
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#include <QtSql/qsqlquery.h>
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#include <QtSql/qsqlerror.h>
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#include <QtSql/qsqldriver.h>
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#include <QtSql/qsqlrecord.h>
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#include <QxTraits/get_primary_key.h>
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#include <QxTraits/is_valid_primary_key.h>
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#include <QxDao/QxSqlDatabase.h>
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#include <QxDao/IxSqlQueryBuilder.h>
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#include <QxDao/QxSqlQuery.h>
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#include <QxDao/IxSqlRelation.h>
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#include <QxDao/QxSqlRelationLinked.h>
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#include <QxDao/QxSqlGenerator/IxSqlGenerator.h>
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#include <QxCollection/QxCollection.h>
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#include <QxDataMember/IxDataMemberX.h>
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#include <QxValidator/QxInvalidValueX.h>
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#include <QxValidator/QxValidatorError.h>
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namespace qx
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{
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template <class T>
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QxInvalidValueX validate(T &t, const QString &group);
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class QxSession;
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} // namespace qx
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namespace qx
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{
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namespace dao
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{
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namespace detail
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{
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struct IxDao_Timer;
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/*!
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* \ingroup QxDao
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* \brief qx::dao::detail::IxDao_Helper : helper class to communicate with database
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*/
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class QX_DLL_EXPORT IxDao_Helper
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{
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friend struct IxDao_Timer;
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public:
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enum timer_type
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{
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timer_none,
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timer_total,
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timer_db_exec,
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timer_db_next,
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timer_db_prepare,
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timer_cpp_build_hierarchy,
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timer_cpp_build_instance,
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timer_cpp_read_instance,
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timer_build_sql,
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timer_db_open,
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timer_db_transaction
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};
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private:
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struct IxDao_HelperImpl;
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std::unique_ptr<IxDao_HelperImpl> m_pImpl; //!< Private implementation idiom
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protected:
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IxDao_Helper(qx::IxSqlQueryBuilder *pBuilder, const qx::QxSqlQuery *pQuery = NULL);
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virtual ~IxDao_Helper();
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public:
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bool isValid() const;
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bool hasFeature(QSqlDriver::DriverFeature ft) const;
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QSqlDatabase &database();
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const QSqlDatabase &database() const;
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QSqlQuery &query();
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const QSqlQuery &query() const;
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QSqlError &error();
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const QSqlError &error() const;
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qx::QxSqlQuery &qxQuery();
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const qx::QxSqlQuery &qxQuery() const;
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qx::IxSqlQueryBuilder &builder();
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const qx::IxSqlQueryBuilder &builder() const;
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qx::IxDataMemberX *getDataMemberX() const;
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long getDataCount() const;
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qx::IxDataMember *getDataId() const;
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qx::IxDataMember *nextData(long &l) const;
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QString sql() const;
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qx::QxSqlRelationLinked *getSqlRelationLinked() const;
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qx::QxSession *getSession() const;
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QString getIgnoreSoftDeleteHash() const;
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bool getCartesianProduct() const;
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QStringList getSqlColumns() const;
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void setSqlColumns(const QStringList &lst);
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bool getUseExecBatch() const;
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void setUseExecBatch(bool b);
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qx::QxCollection<QString, QVariantList> &getListExecBatch();
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IxSqlGenerator *getSqlGenerator() const;
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void addInvalidValues(const qx::QxInvalidValueX &lst);
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bool getAddAutoIncrementIdToUpdateQuery() const;
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QStringList &itemsAsJson();
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bool isReadOnly() const;
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bool isMongoDB() const;
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bool isDistinct() const;
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QVariant getIdFromQuery(int iNameIndex = -1) const;
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QSqlError errFailed(bool bPrepare = false);
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QSqlError errEmpty();
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QSqlError errNoData();
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QSqlError errInvalidId();
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QSqlError errInvalidRelation();
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QSqlError errReadOnly();
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bool transaction();
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bool nextRecord();
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void quiet();
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bool exec(bool bForceEmptyExec = false);
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bool prepare(QString &sql);
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QSqlError updateError(const QSqlError &error);
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bool updateSqlRelationX(const QStringList &relation);
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void addQuery(bool bResolve);
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void dumpRecord() const;
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void resolveQuery();
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template <class U>
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inline bool isValidPrimaryKey(const U &u)
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{
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return (getDataId() && qx::trait::is_valid_primary_key(getDataId()->toVariant((&u), -1, qx::cvt::context::e_database)));
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}
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template <class U>
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inline void updateLastInsertId(U &u)
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{
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if (getDataId() && getDataId()->getAutoIncrement() && this->hasFeature(QSqlDriver::LastInsertId))
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{
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getDataId()->fromVariant((&u), query().lastInsertId(), -1, qx::cvt::context::e_database);
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}
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}
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template <class U>
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inline bool validateInstance(U &u)
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{
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qx::QxInvalidValueX invalidValues = qx::validate(u, "");
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this->addInvalidValues(invalidValues);
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return (invalidValues.count() <= 0);
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}
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protected:
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void dumpBoundValues() const;
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QSqlError updateError(const QString &sError);
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void timerStart(IxDao_Helper::timer_type timer);
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qint64 timerElapsed(IxDao_Helper::timer_type timer);
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void init(QSqlDatabase *pDatabase, const QString &sContext);
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void terminate();
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};
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/*!
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* \ingroup QxDao
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* \brief qx::dao::detail::IxDao_Timer : scoped timer to measure database elapsed times (using C++ RAII)
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*/
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struct IxDao_Timer
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{
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IxDao_Helper *m_pDaoHelper; //!< Pointer to dao helper class
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IxDao_Helper::timer_type m_eTimerType; //!< Timer type (database or C++ action)
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IxDao_Timer(IxDao_Helper *pDaoHelper, IxDao_Helper::timer_type timer) : m_pDaoHelper(pDaoHelper), m_eTimerType(timer)
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{
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if (m_pDaoHelper)
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{
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m_pDaoHelper->timerStart(m_eTimerType);
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}
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}
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~IxDao_Timer()
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{
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if (m_pDaoHelper)
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{
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m_pDaoHelper->timerElapsed(m_eTimerType);
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}
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}
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};
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} // namespace detail
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} // namespace dao
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} // namespace qx
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#endif // _IX_DAO_HELPER_H_
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