QxSqlDatabase.h

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/****************************************************************************
**
** http://www.qxorm.com/
** http://sourceforge.net/projects/qxorm/
** Original file by Lionel Marty
**
** This file is part of the QxOrm library
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any
** damages arising from the use of this software.
**
** GNU Lesser General Public License Usage
** This file must be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file 'license.lgpl.txt' included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you have questions regarding the use of this file, please contact :
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****************************************************************************/

#ifndef _QX_SQL_DATABASE_H_
#define _QX_SQL_DATABASE_H_

#ifdef _MSC_VER
#pragma once
#endif

#include <QtCore/qhash.h>
#include <QtCore/qmutex.h>
#include <QtCore/qthread.h>
#include <QtCore/quuid.h>

#include <QtSql/qsqldatabase.h>
#include <QtSql/qsqlquery.h>
#include <QtSql/qsqlerror.h>

#include <QxSingleton/QxSingleton.h>

#include <QxDao/QxSqlGenerator/IxSqlGenerator.h>

namespace qx {

class QX_DLL_EXPORT QxSqlDatabase : public QxSingleton<QxSqlDatabase>
{

   friend class QxSingleton<QxSqlDatabase>;

public:

   enum ph_style { ph_style_question_mark, ph_style_2_point_name, ph_style_at_name };

private:

   QHash<Qt::HANDLE, QString> m_lstDbByThread;              
   QMutex m_oDbMutex;                                       
   QString m_sDriverName;                                   
   QString m_sConnectOptions;                               
   QString m_sDatabaseName;                                 
   QString m_sUserName;                                     
   QString m_sPassword;                                     
   QString m_sHostName;                                     
   int m_iPort;                                             
   bool m_bTraceSqlQuery;                                   
   bool m_bTraceSqlRecord;                                  
   ph_style m_ePlaceHolderStyle;                            
   bool m_bSessionThrowable;                                
   bool m_bSessionAutoTransaction;                          
   qx::dao::detail::IxSqlGenerator_ptr m_pSqlGenerator;     

private:

   QxSqlDatabase() : QxSingleton<QxSqlDatabase>("qx::QxSqlDatabase"), m_iPort(-1), m_bTraceSqlQuery(true), m_bTraceSqlRecord(false), m_ePlaceHolderStyle(ph_style_2_point_name), m_bSessionThrowable(false), m_bSessionAutoTransaction(true) { ; }
   virtual ~QxSqlDatabase() { ; }

public:

   QString getDriverName() const                { return m_sDriverName; }
   QString getConnectOptions() const            { return m_sConnectOptions; }
   QString getDatabaseName() const              { return m_sDatabaseName; }
   QString getUserName() const                  { return m_sUserName; }
   QString getPassword() const                  { return m_sPassword; }
   QString getHostName() const                  { return m_sHostName; }
   int getPort() const                          { return m_iPort; }
   bool getTraceSqlQuery() const                { return m_bTraceSqlQuery; }
   bool getTraceSqlRecord() const               { return m_bTraceSqlRecord; }
   ph_style getSqlPlaceHolderStyle() const      { return m_ePlaceHolderStyle; }
   bool getSessionThrowable() const             { return m_bSessionThrowable; }
   bool getSessionAutoTransaction() const       { return m_bSessionAutoTransaction; }

   void setDriverName(const QString & s)                          { m_sDriverName = s; }
   void setConnectOptions(const QString & s)                      { m_sConnectOptions = s; }
   void setDatabaseName(const QString & s)                        { m_sDatabaseName = s; }
   void setUserName(const QString & s)                            { m_sUserName = s; }
   void setPassword(const QString & s)                            { m_sPassword = s; }
   void setHostName(const QString & s)                            { m_sHostName = s; }
   void setPort(int i)                                            { m_iPort = i; }
   void setTraceSqlQuery(bool b)                                  { m_bTraceSqlQuery = b; }
   void setTraceSqlRecord(bool b)                                 { m_bTraceSqlRecord = b; }
   void setSqlPlaceHolderStyle(ph_style e)                        { m_ePlaceHolderStyle = e; }
   void setSessionThrowable(bool b)                               { m_bSessionThrowable = b; }
   void setSessionAutoTransaction(bool b)                         { m_bSessionAutoTransaction = b; }
   void setSqlGenerator(qx::dao::detail::IxSqlGenerator_ptr p)    { m_pSqlGenerator = p; }

   static QSqlDatabase getDatabase()         { return qx::QxSqlDatabase::getSingleton()->getDatabaseByCurrThreadId(); }
   static QSqlDatabase getDatabaseCloned()   { return QSqlDatabase::cloneDatabase(qx::QxSqlDatabase::getDatabase(), QUuid::createUuid().toString()); }

   qx::dao::detail::IxSqlGenerator * getSqlGenerator();

private:

   QSqlDatabase getDatabaseByCurrThreadId();
   QSqlDatabase createDatabase();

   void displayLastError(const QSqlDatabase & db, const QString & sDesc) const;
   QString formatLastError(const QSqlDatabase & db) const;

   bool isValid() const { return (! m_sDriverName.isEmpty() && ! m_sDatabaseName.isEmpty()); }

};

} // namespace qx

QX_DLL_EXPORT_QX_SINGLETON_HPP(qx::QxSqlDatabase)

#endif // _QX_SQL_DATABASE_H_