first commit
This commit is contained in:
bing
300
include/QxDao/QxSqlRelation_ManyToOne.h
Normal file
300
include/QxDao/QxSqlRelation_ManyToOne.h
Normal file
@@ -0,0 +1,300 @@
|
||||
/****************************************************************************
|
||||
**
|
||||
** 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_MANY_TO_ONE_H_
|
||||
#define _QX_SQL_RELATION_MANY_TO_ONE_H_
|
||||
|
||||
#ifdef _MSC_VER
|
||||
#pragma once
|
||||
#endif
|
||||
|
||||
/*!
|
||||
* \file QxSqlRelation_ManyToOne.h
|
||||
* \author XDL Team
|
||||
* \ingroup QxDao
|
||||
* \brief Manage a relationship many-to-one defined between 2 classes (or between 2 tables in database)
|
||||
*/
|
||||
|
||||
#include <QxDao/QxSqlRelation.h>
|
||||
|
||||
namespace qx
|
||||
{
|
||||
|
||||
/*!
|
||||
* \ingroup QxDao
|
||||
* \brief qx::QxSqlRelation_ManyToOne<DataType, Owner> : manage a relationship many-to-one defined between 2 classes (or between 2 tables in database)
|
||||
*/
|
||||
template <class DataType, class Owner>
|
||||
class QxSqlRelation_ManyToOne : 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_ManyToOne(IxDataMember *p) : QxSqlRelation<DataType, Owner>(p) { this->setRelationType(qx::IxSqlRelation::many_to_one); }
|
||||
virtual ~QxSqlRelation_ManyToOne() { ; }
|
||||
|
||||
virtual QString getDescription() const { return "relation many-to-one"; }
|
||||
virtual QString createExtraTable() const { return ""; }
|
||||
virtual bool getCartesianProduct() const { return false; }
|
||||
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 QSqlError onAfterSave(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
Q_UNUSED(params);
|
||||
return QSqlError();
|
||||
}
|
||||
|
||||
virtual QSqlError onBeforeSave(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
if (this->isNullData(params) || params.recursiveMode())
|
||||
{
|
||||
return QSqlError();
|
||||
}
|
||||
return qx::dao::save(this->getData(params), (¶ms.database()));
|
||||
}
|
||||
|
||||
virtual void lazyUpdate_ResolveInput(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->lazyInsert_ResolveInput(params);
|
||||
}
|
||||
|
||||
virtual QVariant getIdFromQuery(bool bEager, QxSqlRelationParams ¶ms, int iOffset, int iNameIndex) const
|
||||
{
|
||||
return this->getIdFromQuery_ManyToOne(bEager, params, iOffset, iNameIndex);
|
||||
}
|
||||
|
||||
virtual void updateOffset(bool bEager, QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->updateOffset_ManyToOne(bEager, params);
|
||||
}
|
||||
|
||||
virtual void createTable(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->createTable_ManyToOne(params);
|
||||
}
|
||||
|
||||
virtual void lazySelect(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->lazySelect_ManyToOne(params);
|
||||
}
|
||||
|
||||
virtual void eagerSelect(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->eagerSelect_ManyToOne(params);
|
||||
}
|
||||
|
||||
virtual void eagerJoin(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->eagerJoin_ManyToOne(params);
|
||||
}
|
||||
|
||||
virtual void eagerWhereSoftDelete(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->eagerWhereSoftDelete_ManyToOne(params);
|
||||
}
|
||||
|
||||
virtual void lazyFetch_ResolveOutput(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
if (!this->verifyOffset(params, false))
|
||||
{
|
||||
return;
|
||||
}
|
||||
QSqlQuery &query = params.query();
|
||||
typename QxSqlRelation<DataType, Owner>::type_owner &currOwner = this->getOwner(params);
|
||||
IxDataMember *pData = this->getDataMember();
|
||||
qAssert(pData);
|
||||
if (!pData)
|
||||
{
|
||||
return;
|
||||
}
|
||||
bool bValidId(false);
|
||||
for (int i = 0; i < pData->getNameCount(); i++)
|
||||
{
|
||||
QVariant vId = query.value(params.offset() + i);
|
||||
bValidId = (bValidId || qx::trait::is_valid_primary_key(vId));
|
||||
}
|
||||
if (pData && bValidId)
|
||||
{
|
||||
for (int i = 0; i < pData->getNameCount(); i++)
|
||||
{
|
||||
pData->fromVariant((&currOwner), query.value(params.offset() + i), i, qx::cvt::context::e_database);
|
||||
}
|
||||
}
|
||||
this->updateOffset(false, params);
|
||||
}
|
||||
|
||||
virtual void *eagerFetch_ResolveOutput(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
if (!this->verifyOffset(params, false))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
QSqlQuery &query = params.query();
|
||||
typename QxSqlRelation<DataType, Owner>::type_owner &currOwner = this->getOwner(params);
|
||||
IxDataMember *pData = this->getDataMember();
|
||||
qAssert(pData);
|
||||
if (!pData)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
IxDataMember *p = NULL;
|
||||
IxDataMember *pId = this->getDataId();
|
||||
qAssert(pId);
|
||||
if (!pId)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
long lIndex = 0;
|
||||
long lOffsetId = ((pId && (!params.isDistinct())) ? pId->getNameCount() : 0);
|
||||
long lOffsetData = ((pData && (!params.isDistinct())) ? pData->getNameCount() : 0);
|
||||
long lOffsetOld = params.offset();
|
||||
this->updateOffset(true, params);
|
||||
long lOffsetRelation = (lOffsetOld + lOffsetId + lOffsetData);
|
||||
long lRelation = 0;
|
||||
IxSqlRelation *pRelation = NULL;
|
||||
bool bValidId(false), bValidIdBis(false);
|
||||
|
||||
if (!params.isDistinct())
|
||||
{
|
||||
for (int i = 0; i < pData->getNameCount(); i++)
|
||||
{
|
||||
QVariant vId = query.value(lOffsetOld + i);
|
||||
bValidId = (bValidId || qx::trait::is_valid_primary_key(vId));
|
||||
}
|
||||
for (int i = 0; i < pId->getNameCount(); i++)
|
||||
{
|
||||
QVariant vIdBis = query.value(lOffsetOld + lOffsetData + i);
|
||||
bValidIdBis = (bValidIdBis || qx::trait::is_valid_primary_key(vIdBis));
|
||||
}
|
||||
if (pData && bValidId)
|
||||
{
|
||||
for (int i = 0; i < pData->getNameCount(); i++)
|
||||
{
|
||||
pData->fromVariant((&currOwner), query.value(lOffsetOld + i), i, qx::cvt::context::e_database);
|
||||
}
|
||||
}
|
||||
if (!bValidIdBis)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
type_data &currData = this->getData(params);
|
||||
if (!this->callTriggerBeforeFetch(currData, params))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (pId && (!params.isDistinct()))
|
||||
{
|
||||
for (int i = 0; i < pId->getNameCount(); i++)
|
||||
{
|
||||
pId->fromVariant((&currData), query.value(lOffsetOld + lOffsetData + i), i, qx::cvt::context::e_database);
|
||||
}
|
||||
}
|
||||
while ((p = this->nextData(lIndex)))
|
||||
{
|
||||
if (params.checkColumns(p->getKey()))
|
||||
{
|
||||
p->fromVariant((&currData), query.value(lOffsetRelation++), -1, qx::cvt::context::e_database);
|
||||
}
|
||||
}
|
||||
|
||||
if (params.relationX())
|
||||
{
|
||||
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(lOffsetRelation++);
|
||||
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);
|
||||
}
|
||||
|
||||
virtual void lazyInsert(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->lazyInsert_ManyToOne(params);
|
||||
}
|
||||
|
||||
virtual void lazyInsert_Values(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->lazyInsert_Values_ManyToOne(params);
|
||||
}
|
||||
|
||||
virtual void lazyUpdate(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
this->lazyUpdate_ManyToOne(params);
|
||||
}
|
||||
|
||||
virtual void lazyInsert_ResolveInput(QxSqlRelationParams ¶ms) const
|
||||
{
|
||||
QSqlQuery &query = params.query();
|
||||
typename QxSqlRelation<DataType, Owner>::type_owner &currOwner = this->getOwner(params);
|
||||
IxDataMember *pData = this->getDataMember();
|
||||
qAssert(pData);
|
||||
if (pData)
|
||||
{
|
||||
pData->setSqlPlaceHolder(query, (&currOwner), "", "", false, params.getLstExecBatch());
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace qx
|
||||
|
||||
#endif // _QX_SQL_RELATION_MANY_TO_ONE_H_
|
||||
Reference in New Issue
Block a user