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XdlOrm/include/QxModelView/QxModelService.h
2026-04-03 11:32:07 +08:00

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18 KiB
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/****************************************************************************
**
** 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_MODEL_SERVICE_H_
#define _QX_MODEL_SERVICE_H_
#ifdef _MSC_VER
#pragma once
#endif
/*!
* \file QxModelService.h
* \author XDL Team
* \ingroup QxModelView
* \brief qx::QxModelService<T, S> provides an easy way to connect your model to the QxService module (all queries are executed over network using client/server communication)
*/
#include <QxModelView/QxModel.h>
namespace qx
{
/*!
* \ingroup QxModelView
* \brief qx::QxModelService<T, S> : provides an easy way to connect your model to the QxService module (all queries are executed over network using client/server communication)
*
* T template parameter is a persistent class registered into QxOrm context
* S template parameter is a service class generated by QxEntityEditor (or your own service class providing all methods)
*/
template <class T, class S, class B = qx::IxModel>
class QxModelService : public qx::QxModel<T, B>
{
public:
typedef typename qx::QxModel<T, B>::type_ptr type_ptr;
typedef typename qx::QxModel<T, B>::type_primary_key type_primary_key;
typedef typename qx::QxModel<T, B>::type_collection type_collection;
typedef std::shared_ptr<type_collection> type_collection_ptr;
typedef B type_base_class;
public:
QxModelService(QObject *parent = 0) : qx::QxModel<T, B>(parent) { ; }
QxModelService(qx::IxModel *other, QObject *parent) : qx::QxModel<T, B>(other, parent) { ; }
virtual ~QxModelService() { ; }
virtual long qxCount(const qx::QxSqlQuery &query = qx::QxSqlQuery(), QSqlDatabase *pDatabase = NULL)
{
long lCount = 0;
this->qxCount(lCount, query, pDatabase);
return lCount;
}
virtual QSqlError qxCount(long &lCount, const qx::QxSqlQuery &query = qx::QxSqlQuery(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
S services;
this->m_lastError = services.count(lCount, query);
return this->m_lastError;
}
virtual QSqlError qxFetchById(const QVariant &id, const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
this->clear();
type_ptr pItem = type_ptr(new T());
if (!this->m_pDataMemberId)
{
qDebug("[QxOrm] problem with 'qxFetchById()' method : '%s'", "data member id not registered");
qAssert(false);
}
if (!this->m_pDataMemberId)
{
this->m_lastError = QSqlError("[QxOrm] problem with 'qxFetchById()' method : 'data member id not registered'", "", QSqlError::UnknownError);
return this->m_lastError;
}
this->m_pDataMemberId->fromVariant(pItem.get(), id);
type_primary_key primaryKey;
qx::cvt::from_variant(id, primaryKey);
this->beginInsertRows(QModelIndex(), 0, 0);
this->m_model.insert(primaryKey, pItem);
S services;
this->m_lastError = services.fetchById(pItem, this->m_lstColumns, relation);
this->updateShowEmptyLine();
this->endInsertRows();
return this->m_lastError;
}
virtual QSqlError qxFetchAll(const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
this->clear();
S services;
type_collection_ptr tmp = std::make_shared<type_collection>();
this->m_lastError = services.fetchAll(tmp, this->m_lstColumns, relation);
if (tmp->count() <= 0)
{
return this->m_lastError;
}
this->beginResetModel();
this->m_model = (*tmp);
this->updateShowEmptyLine();
this->endResetModel();
return this->m_lastError;
}
virtual QSqlError qxFetchByQuery(const qx::QxSqlQuery &query, const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
this->clear();
S services;
type_collection_ptr tmp = std::make_shared<type_collection>();
this->m_lastError = services.fetchByQuery(query, tmp, this->m_lstColumns, relation);
if (tmp->count() <= 0)
{
return this->m_lastError;
}
this->beginResetModel();
this->m_model = (*tmp);
this->updateShowEmptyLine();
this->endResetModel();
return this->m_lastError;
}
virtual QSqlError qxFetchRow(int row, const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
if ((row < 0) || (row >= this->m_model.count()))
{
return QSqlError();
}
type_ptr pItem = this->m_model.getByIndex(row);
if (!pItem)
{
return QSqlError();
}
S services;
this->m_lastError = services.fetchById(pItem, this->m_lstColumns, relation);
if (this->m_lastError.isValid())
{
return this->m_lastError;
}
QModelIndex idxTopLeft = this->index(row, 0);
QModelIndex idxBottomRight = this->index(row, (this->m_lstDataMember.count() - 1));
this->raiseEvent_dataChanged(idxTopLeft, idxBottomRight);
this->updateKey(row);
return this->m_lastError;
}
virtual QSqlError qxInsert(const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL, bool bUseExecBatch = false)
{
Q_UNUSED(pDatabase);
Q_UNUSED(bUseExecBatch);
if (relation.count() > 0)
{
this->syncAllNestedModel(relation);
}
type_collection_ptr tmp = std::make_shared<type_collection>();
(*tmp) = this->m_model;
S services;
this->m_lastError = services.insert(tmp, relation);
if (!this->m_lastError.isValid())
{
this->updateAllKeys();
}
return this->m_lastError;
}
virtual QSqlError qxInsertRow(int row, const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
if ((row < 0) || (row >= this->m_model.count()))
{
return QSqlError();
}
if (relation.count() > 0)
{
this->syncNestedModel(row, relation);
}
type_ptr pItem = this->m_model.getByIndex(row);
if (!pItem)
{
return QSqlError();
}
S services;
this->m_lastError = services.insert(pItem, relation);
if (!this->m_lastError.isValid())
{
this->updateKey(row);
}
return this->m_lastError;
}
virtual QSqlError qxUpdate(const qx::QxSqlQuery &query = qx::QxSqlQuery(), const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL, bool bUseExecBatch = false)
{
Q_UNUSED(pDatabase);
Q_UNUSED(bUseExecBatch);
if (relation.count() > 0)
{
this->syncAllNestedModel(relation);
}
type_collection_ptr tmp = std::make_shared<type_collection>();
(*tmp) = this->m_model;
S services;
this->m_lastError = services.update(tmp, query, this->m_lstColumns, relation);
if (!this->m_lastError.isValid())
{
this->updateAllKeys();
}
return this->m_lastError;
}
virtual QSqlError qxUpdateRow(int row, const qx::QxSqlQuery &query = qx::QxSqlQuery(), const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
if ((row < 0) || (row >= this->m_model.count()))
{
return QSqlError();
}
if (relation.count() > 0)
{
this->syncNestedModel(row, relation);
}
type_ptr pItem = this->m_model.getByIndex(row);
if (!pItem)
{
return QSqlError();
}
S services;
this->m_lastError = services.update(pItem, query, this->m_lstColumns, relation);
if (!this->m_lastError.isValid())
{
this->updateKey(row);
}
return this->m_lastError;
}
virtual QSqlError qxSave(const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
if (relation.count() > 0)
{
this->syncAllNestedModel(relation);
}
type_collection_ptr tmp = std::make_shared<type_collection>();
(*tmp) = this->m_model;
S services;
this->m_lastError = services.save(tmp, relation);
if (!this->m_lastError.isValid())
{
this->updateAllKeys();
}
return this->m_lastError;
}
virtual QSqlError qxSaveRow(int row, const QStringList &relation = QStringList(), QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
if ((row < 0) || (row >= this->m_model.count()))
{
return QSqlError();
}
if (relation.count() > 0)
{
this->syncNestedModel(row, relation);
}
type_ptr pItem = this->m_model.getByIndex(row);
if (!pItem)
{
return QSqlError();
}
S services;
this->m_lastError = services.save(pItem, relation);
if (!this->m_lastError.isValid())
{
this->updateKey(row);
}
return this->m_lastError;
}
virtual QSqlError qxDeleteById(const QVariant &id, QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
type_ptr pItem = type_ptr(new T());
if (!this->m_pDataMemberId)
{
qDebug("[QxOrm] problem with 'qxDeleteById()' method : '%s'", "data member id not registered");
qAssert(false);
}
if (!this->m_pDataMemberId)
{
this->m_lastError = QSqlError("[QxOrm] problem with 'qxDeleteById()' method : 'data member id not registered'", "", QSqlError::UnknownError);
return this->m_lastError;
}
this->m_pDataMemberId->fromVariant(pItem.get(), id);
S services;
this->m_lastError = services.deleteById(pItem);
return this->m_lastError;
}
virtual QSqlError qxDeleteAll(QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
S services;
this->m_lastError = services.deleteAll();
return this->m_lastError;
}
virtual QSqlError qxDeleteByQuery(const qx::QxSqlQuery &query, QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
S services;
this->m_lastError = services.deleteByQuery(query);
return this->m_lastError;
}
virtual QSqlError qxDeleteRow(int row, QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
if ((row < 0) || (row >= this->m_model.count()))
{
return QSqlError();
}
type_ptr pItem = this->m_model.getByIndex(row);
if (!pItem)
{
return QSqlError();
}
S services;
this->m_lastError = services.deleteById(pItem);
return this->m_lastError;
}
virtual QSqlError qxDestroyById(const QVariant &id, QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
type_ptr pItem = type_ptr(new T());
if (!this->m_pDataMemberId)
{
qDebug("[QxOrm] problem with 'qxDeleteById()' method : '%s'", "data member id not registered");
qAssert(false);
}
if (!this->m_pDataMemberId)
{
this->m_lastError = QSqlError("[QxOrm] problem with 'qxDeleteById()' method : 'data member id not registered'", "", QSqlError::UnknownError);
return this->m_lastError;
}
this->m_pDataMemberId->fromVariant(pItem.get(), id);
S services;
this->m_lastError = services.destroyById(pItem);
return this->m_lastError;
}
virtual QSqlError qxDestroyAll(QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
S services;
this->m_lastError = services.destroyAll();
return this->m_lastError;
}
virtual QSqlError qxDestroyByQuery(const qx::QxSqlQuery &query, QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
S services;
this->m_lastError = services.destroyByQuery(query);
return this->m_lastError;
}
virtual QSqlError qxDestroyRow(int row, QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
if ((row < 0) || (row >= this->m_model.count()))
{
return QSqlError();
}
type_ptr pItem = this->m_model.getByIndex(row);
if (!pItem)
{
return QSqlError();
}
S services;
this->m_lastError = services.destroyById(pItem);
return this->m_lastError;
}
virtual QSqlError qxExecuteQuery(qx::QxSqlQuery &query, QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
this->clear();
S services;
type_collection_ptr tmp = std::make_shared<type_collection>();
this->m_lastError = services.executeQuery(query, tmp);
if (tmp->count() <= 0)
{
return this->m_lastError;
}
this->beginResetModel();
this->m_model = (*tmp);
this->updateShowEmptyLine();
this->endResetModel();
return this->m_lastError;
}
virtual qx_bool qxExist(const QVariant &id, QSqlDatabase *pDatabase = NULL)
{
Q_UNUSED(pDatabase);
type_ptr pItem = type_ptr(new T());
if (!this->m_pDataMemberId)
{
qDebug("[QxOrm] problem with 'qxExist()' method : '%s'", "data member id not registered");
qAssert(false);
}
if (!this->m_pDataMemberId)
{
return qx_bool(false);
}
this->m_pDataMemberId->fromVariant(pItem.get(), id);
S services;
return services.exist(pItem);
}
virtual qx::QxInvalidValueX qxValidate(const QStringList &groups = QStringList())
{
Q_UNUSED(groups);
S services;
type_collection_ptr tmp = std::make_shared<type_collection>();
(*tmp) = this->m_model;
return services.isValid(tmp);
}
virtual qx::QxInvalidValueX qxValidateRow(int row, const QStringList &groups = QStringList())
{
Q_UNUSED(groups);
if ((row < 0) || (row >= this->m_model.count()))
{
return qx::QxInvalidValueX();
}
type_ptr pItem = this->m_model.getByIndex(row);
if (!pItem)
{
return qx::QxInvalidValueX();
}
S services;
return services.isValid(pItem);
}
protected:
#ifndef _QX_NO_JSON
virtual QVariant getRelationshipValues_Helper(int row, const QString &relation, bool bLoadFromDatabase, const QString &sAppendRelations)
{
if ((row < 0) || (row >= this->m_model.count()))
{
return QVariant();
}
if (!this->m_pDataMemberId || !this->m_pDataMemberX || !this->m_pDataMemberX->exist(relation))
{
return QVariant();
}
IxDataMember *pDataMember = this->m_pDataMemberX->get_WithDaoStrategy(relation);
if (!pDataMember)
{
return QVariant();
}
IxSqlRelation *pRelation = (pDataMember->hasSqlRelation() ? pDataMember->getSqlRelation() : NULL);
if (!pRelation)
{
return QVariant();
}
type_ptr pItem = this->m_model.getByIndex(row);
if (!pItem)
{
return QVariant();
}
type_ptr pItemTemp = pItem;
if (bLoadFromDatabase)
{
QString sRelation = relation;
if (!sAppendRelations.isEmpty() && !sAppendRelations.startsWith("->") && !sAppendRelations.startsWith(">>"))
{
sRelation += "->" + sAppendRelations;
}
else if (!sAppendRelations.isEmpty())
{
sRelation += sAppendRelations;
}
pItemTemp = type_ptr(new T());
QVariant id = this->m_pDataMemberId->toVariant(pItem.get());
this->m_pDataMemberId->fromVariant(pItemTemp.get(), id);
S services;
QStringList columns;
QSqlError daoError = services.fetchById(pItemTemp, columns, QStringList() << sRelation);
if (daoError.isValid())
{
return QVariant();
}
}
QJsonValue json = pDataMember->toJson(pItemTemp.get());
if (json.isNull())
{
return QVariant();
}
if (json.isArray())
{
return json.toArray().toVariantList();
}
return json.toObject().toVariantMap();
}
#endif // _QX_NO_JSON
};
} // namespace qx
#endif // _QX_MODEL_SERVICE_H_