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QxModelService.h
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    00001 /****************************************************************************
    00002 **
    00003 ** https://www.qxorm.com/
    00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
    00005 **
    00006 ** This file is part of the QxOrm library
    00007 **
    00008 ** This software is provided 'as-is', without any express or implied
    00009 ** warranty. In no event will the authors be held liable for any
    00010 ** damages arising from the use of this software
    00011 **
    00012 ** Commercial Usage
    00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
    00014 ** accordance with the commercial license agreement provided with the
    00015 ** Software or, alternatively, in accordance with the terms contained in
    00016 ** a written agreement between you and Lionel Marty
    00017 **
    00018 ** GNU General Public License Usage
    00019 ** Alternatively, this file may be used under the terms of the GNU
    00020 ** General Public License version 3.0 as published by the Free Software
    00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
    00022 ** packaging of this file. Please review the following information to
    00023 ** ensure the GNU General Public License version 3.0 requirements will be
    00024 ** met : http://www.gnu.org/copyleft/gpl.html
    00025 **
    00026 ** If you are unsure which license is appropriate for your use, or
    00027 ** if you have questions regarding the use of this file, please contact :
    00028 ** contact@qxorm.com
    00029 **
    00030 ****************************************************************************/
    00031
    00032 #ifndef _QX_MODEL_SERVICE_H_
    00033 #define _QX_MODEL_SERVICE_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #include <QxModelView/QxModel.h>
    00047
    00048 namespace qx {
    00049
    00057 template <class T, class S, class B = qx::IxModel>
    00058 class QxModelService : public qx::QxModel<T, B>
    00059 {
    00060
    00061 public:
    00062
    00063    typedef typename qx::QxModel<T, B>::type_ptr type_ptr;
    00064    typedef typename qx::QxModel<T, B>::type_primary_key type_primary_key;
    00065    typedef typename qx::QxModel<T, B>::type_collection type_collection;
    00066    typedef std::shared_ptr<type_collection> type_collection_ptr;
    00067    typedef B type_base_class;
    00068
    00069 public:
    00070
    00071    QxModelService(QObject * parent = 0) : qx::QxModel<T, B>(parent) { ; }
    00072    QxModelService(qx::IxModel * other, QObject * parent) : qx::QxModel<T, B>(other, parent) { ; }
    00073    virtual ~QxModelService() { ; }
    00074
    00075    virtual long qxCount(const qx::QxSqlQuery & query = qx::QxSqlQuery(), QSqlDatabase * pDatabase = NULL)
    00076    {
    00077       long lCount = 0;
    00078       this->qxCount(lCount, query, pDatabase);
    00079       return lCount;
    00080    }
    00081
    00082    virtual QSqlError qxCount(long & lCount, const qx::QxSqlQuery & query = qx::QxSqlQuery(), QSqlDatabase * pDatabase = NULL)
    00083    {
    00084       Q_UNUSED(pDatabase);
    00085       S services;
    00086       this->m_lastError = services.count(lCount, query);
    00087       return this->m_lastError;
    00088    }
    00089
    00090    virtual QSqlError qxFetchById(const QVariant & id, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00091    {
    00092       Q_UNUSED(pDatabase);
    00093       this->clear();
    00094       type_ptr pItem = type_ptr(new T());
    00095       if (! this->m_pDataMemberId) { qDebug("[QxOrm] problem with 'qxFetchById()' method : '%s'", "data member id not registered"); qAssert(false); }
    00096       if (! this->m_pDataMemberId) { this->m_lastError = QSqlError("[QxOrm] problem with 'qxFetchById()' method : 'data member id not registered'", "", QSqlError::UnknownError); return this->m_lastError; }
    00097       this->m_pDataMemberId->fromVariant(pItem.get(), id);
    00098
    00099       type_primary_key primaryKey;
    00100       qx::cvt::from_variant(id, primaryKey);
    00101       this->beginInsertRows(QModelIndex(), 0, 0);
    00102       this->m_model.insert(primaryKey, pItem);
    00103
    00104       S services;
    00105       this->m_lastError = services.fetchById(pItem, this->m_lstColumns, relation);
    00106       this->updateShowEmptyLine();
    00107       this->endInsertRows();
    00108       return this->m_lastError;
    00109    }
    00110
    00111    virtual QSqlError qxFetchAll(const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00112    {
    00113       Q_UNUSED(pDatabase);
    00114       this->clear();
    00115
    00116       S services;
    00117       type_collection_ptr tmp = std::make_shared<type_collection>();
    00118       this->m_lastError = services.fetchAll(tmp, this->m_lstColumns, relation);
    00119
    00120       if (tmp->count() <= 0) { return this->m_lastError; }
    00121       this->beginResetModel();
    00122       this->m_model = (* tmp);
    00123       this->updateShowEmptyLine();
    00124       this->endResetModel();
    00125       return this->m_lastError;
    00126    }
    00127
    00128    virtual QSqlError qxFetchByQuery(const qx::QxSqlQuery & query, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00129    {
    00130       Q_UNUSED(pDatabase);
    00131       this->clear();
    00132
    00133       S services;
    00134       type_collection_ptr tmp = std::make_shared<type_collection>();
    00135       this->m_lastError = services.fetchByQuery(query, tmp, this->m_lstColumns, relation);
    00136
    00137       if (tmp->count() <= 0) { return this->m_lastError; }
    00138       this->beginResetModel();
    00139       this->m_model = (* tmp);
    00140       this->updateShowEmptyLine();
    00141       this->endResetModel();
    00142       return this->m_lastError;
    00143    }
    00144
    00145    virtual QSqlError qxFetchRow(int row, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00146    {
    00147       Q_UNUSED(pDatabase);
    00148       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00149       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00150
    00151       S services;
    00152       this->m_lastError = services.fetchById(pItem, this->m_lstColumns, relation);
    00153       if (this->m_lastError.isValid()) { return this->m_lastError; }
    00154
    00155       QModelIndex idxTopLeft = this->index(row, 0);
    00156       QModelIndex idxBottomRight = this->index(row, (this->m_lstDataMember.count() - 1));
    00157       this->raiseEvent_dataChanged(idxTopLeft, idxBottomRight);
    00158       this->updateKey(row);
    00159       return this->m_lastError;
    00160    }
    00161
    00162    virtual QSqlError qxInsert(const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL, bool bUseExecBatch = false)
    00163    {
    00164       Q_UNUSED(pDatabase); Q_UNUSED(bUseExecBatch);
    00165       if (relation.count() > 0) { this->syncAllNestedModel(relation); }
    00166
    00167       type_collection_ptr tmp = std::make_shared<type_collection>();
    00168       (* tmp) = this->m_model;
    00169
    00170       S services;
    00171       this->m_lastError = services.insert(tmp, relation);
    00172
    00173       if (! this->m_lastError.isValid()) { this->updateAllKeys(); }
    00174       return this->m_lastError;
    00175    }
    00176
    00177    virtual QSqlError qxInsertRow(int row, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00178    {
    00179       Q_UNUSED(pDatabase);
    00180       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00181       if (relation.count() > 0) { this->syncNestedModel(row, relation); }
    00182       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00183
    00184       S services;
    00185       this->m_lastError = services.insert(pItem, relation);
    00186
    00187       if (! this->m_lastError.isValid()) { this->updateKey(row); }
    00188       return this->m_lastError;
    00189    }
    00190
    00191    virtual QSqlError qxUpdate(const qx::QxSqlQuery & query = qx::QxSqlQuery(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL, bool bUseExecBatch = false)
    00192    {
    00193       Q_UNUSED(pDatabase); Q_UNUSED(bUseExecBatch);
    00194       if (relation.count() > 0) { this->syncAllNestedModel(relation); }
    00195
    00196       type_collection_ptr tmp = std::make_shared<type_collection>();
    00197       (* tmp) = this->m_model;
    00198
    00199       S services;
    00200       this->m_lastError = services.update(tmp, query, this->m_lstColumns, relation);
    00201
    00202       if (! this->m_lastError.isValid()) { this->updateAllKeys(); }
    00203       return this->m_lastError;
    00204    }
    00205
    00206    virtual QSqlError qxUpdateRow(int row, const qx::QxSqlQuery & query = qx::QxSqlQuery(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00207    {
    00208       Q_UNUSED(pDatabase);
    00209       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00210       if (relation.count() > 0) { this->syncNestedModel(row, relation); }
    00211       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00212
    00213       S services;
    00214       this->m_lastError = services.update(pItem, query, this->m_lstColumns, relation);
    00215
    00216       if (! this->m_lastError.isValid()) { this->updateKey(row); }
    00217       return this->m_lastError;
    00218    }
    00219
    00220    virtual QSqlError qxSave(const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00221    {
    00222       Q_UNUSED(pDatabase);
    00223       if (relation.count() > 0) { this->syncAllNestedModel(relation); }
    00224
    00225       type_collection_ptr tmp = std::make_shared<type_collection>();
    00226       (* tmp) = this->m_model;
    00227
    00228       S services;
    00229       this->m_lastError = services.save(tmp, relation);
    00230
    00231       if (! this->m_lastError.isValid()) { this->updateAllKeys(); }
    00232       return this->m_lastError;
    00233    }
    00234
    00235    virtual QSqlError qxSaveRow(int row, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00236    {
    00237       Q_UNUSED(pDatabase);
    00238       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00239       if (relation.count() > 0) { this->syncNestedModel(row, relation); }
    00240       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00241
    00242       S services;
    00243       this->m_lastError = services.save(pItem, relation);
    00244
    00245       if (! this->m_lastError.isValid()) { this->updateKey(row); }
    00246       return this->m_lastError;
    00247    }
    00248
    00249    virtual QSqlError qxDeleteById(const QVariant & id, QSqlDatabase * pDatabase = NULL)
    00250    {
    00251       Q_UNUSED(pDatabase);
    00252       type_ptr pItem = type_ptr(new T());
    00253       if (! this->m_pDataMemberId) { qDebug("[QxOrm] problem with 'qxDeleteById()' method : '%s'", "data member id not registered"); qAssert(false); }
    00254       if (! this->m_pDataMemberId) { this->m_lastError = QSqlError("[QxOrm] problem with 'qxDeleteById()' method : 'data member id not registered'", "", QSqlError::UnknownError); return this->m_lastError; }
    00255       this->m_pDataMemberId->fromVariant(pItem.get(), id);
    00256
    00257       S services;
    00258       this->m_lastError = services.deleteById(pItem);
    00259       return this->m_lastError;
    00260    }
    00261
    00262    virtual QSqlError qxDeleteAll(QSqlDatabase * pDatabase = NULL)
    00263    {
    00264       Q_UNUSED(pDatabase);
    00265       S services;
    00266       this->m_lastError = services.deleteAll();
    00267       return this->m_lastError;
    00268    }
    00269
    00270    virtual QSqlError qxDeleteByQuery(const qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL)
    00271    {
    00272       Q_UNUSED(pDatabase);
    00273       S services;
    00274       this->m_lastError = services.deleteByQuery(query);
    00275       return this->m_lastError;
    00276    }
    00277
    00278    virtual QSqlError qxDeleteRow(int row, QSqlDatabase * pDatabase = NULL)
    00279    {
    00280       Q_UNUSED(pDatabase);
    00281       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00282       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00283
    00284       S services;
    00285       this->m_lastError = services.deleteById(pItem);
    00286       return this->m_lastError;
    00287    }
    00288
    00289    virtual QSqlError qxDestroyById(const QVariant & id, QSqlDatabase * pDatabase = NULL)
    00290    {
    00291       Q_UNUSED(pDatabase);
    00292       type_ptr pItem = type_ptr(new T());
    00293       if (! this->m_pDataMemberId) { qDebug("[QxOrm] problem with 'qxDeleteById()' method : '%s'", "data member id not registered"); qAssert(false); }
    00294       if (! this->m_pDataMemberId) { this->m_lastError = QSqlError("[QxOrm] problem with 'qxDeleteById()' method : 'data member id not registered'", "", QSqlError::UnknownError); return this->m_lastError; }
    00295       this->m_pDataMemberId->fromVariant(pItem.get(), id);
    00296
    00297       S services;
    00298       this->m_lastError = services.destroyById(pItem);
    00299       return this->m_lastError;
    00300    }
    00301
    00302    virtual QSqlError qxDestroyAll(QSqlDatabase * pDatabase = NULL)
    00303    {
    00304       Q_UNUSED(pDatabase);
    00305       S services;
    00306       this->m_lastError = services.destroyAll();
    00307       return this->m_lastError;
    00308    }
    00309
    00310    virtual QSqlError qxDestroyByQuery(const qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL)
    00311    {
    00312       Q_UNUSED(pDatabase);
    00313       S services;
    00314       this->m_lastError = services.destroyByQuery(query);
    00315       return this->m_lastError;
    00316    }
    00317
    00318    virtual QSqlError qxDestroyRow(int row, QSqlDatabase * pDatabase = NULL)
    00319    {
    00320       Q_UNUSED(pDatabase);
    00321       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00322       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00323
    00324       S services;
    00325       this->m_lastError = services.destroyById(pItem);
    00326       return this->m_lastError;
    00327    }
    00328
    00329    virtual QSqlError qxExecuteQuery(qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL)
    00330    {
    00331       Q_UNUSED(pDatabase);
    00332       this->clear();
    00333
    00334       S services;
    00335       type_collection_ptr tmp = std::make_shared<type_collection>();
    00336       this->m_lastError = services.executeQuery(query, tmp);
    00337
    00338       if (tmp->count() <= 0) { return this->m_lastError; }
    00339       this->beginResetModel();
    00340       this->m_model = (* tmp);
    00341       this->updateShowEmptyLine();
    00342       this->endResetModel();
    00343       return this->m_lastError;
    00344    }
    00345
    00346    virtual qx_bool qxExist(const QVariant & id, QSqlDatabase * pDatabase = NULL)
    00347    {
    00348       Q_UNUSED(pDatabase);
    00349       type_ptr pItem = type_ptr(new T());
    00350       if (! this->m_pDataMemberId) { qDebug("[QxOrm] problem with 'qxExist()' method : '%s'", "data member id not registered"); qAssert(false); }
    00351       if (! this->m_pDataMemberId) { return qx_bool(false); }
    00352       this->m_pDataMemberId->fromVariant(pItem.get(), id);
    00353
    00354       S services;
    00355       return services.exist(pItem);
    00356    }
    00357
    00358    virtual qx::QxInvalidValueX qxValidate(const QStringList & groups = QStringList())
    00359    {
    00360       Q_UNUSED(groups);
    00361       S services;
    00362       type_collection_ptr tmp = std::make_shared<type_collection>();
    00363       (* tmp) = this->m_model;
    00364       return services.isValid(tmp);
    00365    }
    00366
    00367    virtual qx::QxInvalidValueX qxValidateRow(int row, const QStringList & groups = QStringList())
    00368    {
    00369       Q_UNUSED(groups);
    00370       if ((row < 0) || (row >= this->m_model.count())) { return qx::QxInvalidValueX(); }
    00371       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return qx::QxInvalidValueX(); }
    00372
    00373       S services;
    00374       return services.isValid(pItem);
    00375    }
    00376
    00377 protected:
    00378
    00379 #ifndef _QX_NO_JSON
    00380
    00381    virtual QVariant getRelationshipValues_Helper(int row, const QString & relation, bool bLoadFromDatabase, const QString & sAppendRelations)
    00382    {
    00383       if ((row < 0) || (row >= this->m_model.count())) { return QVariant(); }
    00384       if (! this->m_pDataMemberId || ! this->m_pDataMemberX || ! this->m_pDataMemberX->exist(relation)) { return QVariant(); }
    00385       IxDataMember * pDataMember = this->m_pDataMemberX->get_WithDaoStrategy(relation); if (! pDataMember) { return QVariant(); }
    00386       IxSqlRelation * pRelation = (pDataMember->hasSqlRelation() ? pDataMember->getSqlRelation() : NULL); if (! pRelation) { return QVariant(); }
    00387       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QVariant(); }
    00388       type_ptr pItemTemp = pItem;
    00389
    00390       if (bLoadFromDatabase)
    00391       {
    00392          QString sRelation = relation;
    00393          if (! sAppendRelations.isEmpty() && ! sAppendRelations.startsWith("->") && ! sAppendRelations.startsWith(">>")) { sRelation += "->" + sAppendRelations; }
    00394          else if (! sAppendRelations.isEmpty()) { sRelation += sAppendRelations; }
    00395          pItemTemp = type_ptr(new T());
    00396          QVariant id = this->m_pDataMemberId->toVariant(pItem.get());
    00397          this->m_pDataMemberId->fromVariant(pItemTemp.get(), id);
    00398
    00399          S services; QStringList columns;
    00400          QSqlError daoError = services.fetchById(pItemTemp, columns, QStringList() << sRelation);
    00401          if (daoError.isValid()) { return QVariant(); }
    00402       }
    00403
    00404       QJsonValue json = pDataMember->toJson(pItemTemp.get()); if (json.isNull()) { return QVariant(); }
    00405       if (json.isArray()) { return json.toArray().toVariantList(); }
    00406       return json.toObject().toVariantMap();
    00407    }
    00408
    00409 #endif // _QX_NO_JSON
    00410
    00411 };
    00412
    00413 } // namespace qx
    00414
    00415 #endif // _QX_MODEL_SERVICE_H_