229 lines
8.3 KiB
C++
229 lines
8.3 KiB
C++
/****************************************************************************
|
|
**
|
|
** https://www.qxorm.com/
|
|
** Copyright (C) 2013 XDL Team (ic-east.com)
|
|
**
|
|
** 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
|
|
**
|
|
** Commercial Usage
|
|
** Licensees holding valid commercial QxOrm licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and XDL Team
|
|
**
|
|
** GNU General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
** General Public License version 3.0 as published by the Free Software
|
|
** Foundation and appearing in the file 'license.gpl3.txt' included in the
|
|
** packaging of this file. Please review the following information to
|
|
** ensure the GNU General Public License version 3.0 requirements will be
|
|
** met : http://www.gnu.org/copyleft/gpl.html
|
|
**
|
|
** If you are unsure which license is appropriate for your use, or
|
|
** if you have questions regarding the use of this file, please contact :
|
|
** ic-east.com
|
|
**
|
|
****************************************************************************/
|
|
|
|
#ifndef _QX_SQL_RELATION_ONE_TO_ONE_H_
|
|
#define _QX_SQL_RELATION_ONE_TO_ONE_H_
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma once
|
|
#endif
|
|
|
|
/*!
|
|
* \file QxSqlRelation_OneToOne.h
|
|
* \author XDL Team
|
|
* \ingroup QxDao
|
|
* \brief Manage a relationship one-to-one defined between 2 classes (or between 2 tables in database)
|
|
*/
|
|
|
|
#include <QxDao/QxSqlRelation.h>
|
|
|
|
namespace qx
|
|
{
|
|
|
|
/*!
|
|
* \ingroup QxDao
|
|
* \brief qx::QxSqlRelation_OneToOne<DataType, Owner> : manage a relationship one-to-one defined between 2 classes (or between 2 tables in database)
|
|
*/
|
|
template <class DataType, class Owner>
|
|
class QxSqlRelation_OneToOne : public QxSqlRelation<DataType, Owner>
|
|
{
|
|
|
|
private:
|
|
typedef typename QxSqlRelation<DataType, Owner>::type_owner type_owner;
|
|
typedef typename QxSqlRelation<DataType, Owner>::type_data type_data;
|
|
|
|
public:
|
|
QxSqlRelation_OneToOne(IxDataMember *p) : QxSqlRelation<DataType, Owner>(p) { this->setRelationType(qx::IxSqlRelation::one_to_one); }
|
|
virtual ~QxSqlRelation_OneToOne() { ; }
|
|
|
|
virtual QString getDescription() const { return "relation one-to-one"; }
|
|
virtual QString createExtraTable() const { return ""; }
|
|
virtual bool getCartesianProduct() const { return false; }
|
|
virtual void createTable(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazySelect(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyFrom(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void eagerFrom(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyJoin(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyWhere(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void eagerWhere(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyWhereSoftDelete(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyFetch_ResolveInput(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void eagerFetch_ResolveInput(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyFetch_ResolveOutput(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyInsert(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyInsert_Values(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyUpdate(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyInsert_ResolveInput(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual void lazyUpdate_ResolveInput(QxSqlRelationParams ¶ms) const { Q_UNUSED(params); }
|
|
virtual QSqlError onBeforeSave(QxSqlRelationParams ¶ms) const
|
|
{
|
|
Q_UNUSED(params);
|
|
return QSqlError();
|
|
}
|
|
|
|
virtual QSqlError onAfterSave(QxSqlRelationParams ¶ms) const
|
|
{
|
|
if (this->isNullData(params))
|
|
{
|
|
return QSqlError();
|
|
}
|
|
if (!params.recursiveMode())
|
|
{
|
|
return qx::dao::save(this->getData(params), (¶ms.database()));
|
|
}
|
|
else
|
|
{
|
|
return qx::dao::save_with_relation_recursive(this->getData(params), params.saveMode(), (¶ms.database()), (¶ms));
|
|
}
|
|
}
|
|
|
|
virtual QVariant getIdFromQuery(bool bEager, QxSqlRelationParams ¶ms, int iOffset, int iNameIndex) const
|
|
{
|
|
return this->getIdFromQuery_OneToOne(bEager, params, iOffset, iNameIndex);
|
|
}
|
|
|
|
virtual void updateOffset(bool bEager, QxSqlRelationParams ¶ms) const
|
|
{
|
|
this->updateOffset_OneToOne(bEager, params);
|
|
}
|
|
|
|
virtual void eagerSelect(QxSqlRelationParams ¶ms) const
|
|
{
|
|
this->eagerSelect_OneToOne(params);
|
|
}
|
|
|
|
virtual void eagerJoin(QxSqlRelationParams ¶ms) const
|
|
{
|
|
this->eagerJoin_OneToOne(params);
|
|
}
|
|
|
|
virtual void eagerWhereSoftDelete(QxSqlRelationParams ¶ms) const
|
|
{
|
|
this->eagerWhereSoftDelete_OneToOne(params);
|
|
}
|
|
|
|
virtual void *eagerFetch_ResolveOutput(QxSqlRelationParams ¶ms) const
|
|
{
|
|
if (!this->verifyOffset(params, true))
|
|
{
|
|
return NULL;
|
|
}
|
|
QSqlQuery &query = params.query();
|
|
IxDataMember *p = NULL;
|
|
IxDataMember *pId = this->getDataId();
|
|
qAssert(pId);
|
|
if (!pId)
|
|
{
|
|
return NULL;
|
|
}
|
|
long lIndex = 0;
|
|
long lOffsetId = ((pId && (!params.isDistinct())) ? pId->getNameCount() : 0);
|
|
bool bValidId(false);
|
|
long lOffsetOld = params.offset();
|
|
this->updateOffset(true, params);
|
|
long lRelation = 0;
|
|
IxSqlRelation *pRelation = NULL;
|
|
|
|
if (!params.isDistinct())
|
|
{
|
|
for (int i = 0; i < pId->getNameCount(); i++)
|
|
{
|
|
QVariant v = query.value(lOffsetOld + i);
|
|
bValidId = (bValidId || qx::trait::is_valid_primary_key(v));
|
|
}
|
|
if (!bValidId)
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
type_data &currData = this->getData(params);
|
|
if (!this->callTriggerBeforeFetch(currData, params))
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (!params.isDistinct())
|
|
{
|
|
for (int i = 0; i < pId->getNameCount(); i++)
|
|
{
|
|
QVariant v = query.value(lOffsetOld + i);
|
|
pId->fromVariant((&currData), v, i, qx::cvt::context::e_database);
|
|
}
|
|
}
|
|
|
|
long lOffsetRelation = (lOffsetOld + lOffsetId);
|
|
long lCurrIndex = 0;
|
|
while ((p = this->nextData(lIndex)))
|
|
{
|
|
if (params.checkColumns(p->getKey()))
|
|
{
|
|
p->fromVariant((&currData), query.value(lCurrIndex + lOffsetRelation), -1, qx::cvt::context::e_database);
|
|
lCurrIndex++;
|
|
}
|
|
}
|
|
|
|
if (params.relationX())
|
|
{
|
|
long lOffsetCurrent = (lCurrIndex + lOffsetRelation);
|
|
QString sOldCustomAliasOwner = params.getCustomAliasOwner();
|
|
params.setCustomAliasOwner(params.getCustomAlias());
|
|
long lIndexOwnerOld = params.indexOwner();
|
|
params.setIndexOwner(params.index());
|
|
void *pOwnerOld = params.owner();
|
|
params.setOwner(&currData);
|
|
lOffsetOld = params.offset();
|
|
params.setOffset(lOffsetCurrent);
|
|
while ((pRelation = this->nextRelation(lRelation)))
|
|
{
|
|
if (this->addLazyRelation(params, pRelation))
|
|
{
|
|
pRelation->lazyFetch_ResolveOutput(params);
|
|
}
|
|
}
|
|
params.setOwner(pOwnerOld);
|
|
params.setOffset(lOffsetOld);
|
|
params.setCustomAliasOwner(sOldCustomAliasOwner);
|
|
params.setIndexOwner(lIndexOwnerOld);
|
|
}
|
|
|
|
if (!this->callTriggerAfterFetch(currData, params))
|
|
{
|
|
return NULL;
|
|
}
|
|
return (&currData);
|
|
}
|
|
};
|
|
|
|
} // namespace qx
|
|
|
|
#endif // _QX_SQL_RELATION_ONE_TO_ONE_H_
|