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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;
    00118       tmp.reset(new type_collection());
    00119       this->m_lastError = services.fetchAll(tmp, this->m_lstColumns, relation);
    00120
    00121       if (tmp->count() <= 0) { return this->m_lastError; }
    00122       this->beginResetModel();
    00123       this->m_model = (* tmp);
    00124       this->updateShowEmptyLine();
    00125       this->endResetModel();
    00126       return this->m_lastError;
    00127    }
    00128
    00129    virtual QSqlError qxFetchByQuery(const qx::QxSqlQuery & query, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00130    {
    00131       Q_UNUSED(pDatabase);
    00132       this->clear();
    00133
    00134       S services;
    00135       type_collection_ptr tmp;
    00136       tmp.reset(new type_collection());
    00137       this->m_lastError = services.fetchByQuery(query, tmp, this->m_lstColumns, relation);
    00138
    00139       if (tmp->count() <= 0) { return this->m_lastError; }
    00140       this->beginResetModel();
    00141       this->m_model = (* tmp);
    00142       this->updateShowEmptyLine();
    00143       this->endResetModel();
    00144       return this->m_lastError;
    00145    }
    00146
    00147    virtual QSqlError qxFetchRow(int row, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00148    {
    00149       Q_UNUSED(pDatabase);
    00150       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00151       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00152
    00153       S services;
    00154       this->m_lastError = services.fetchById(pItem, this->m_lstColumns, relation);
    00155       if (this->m_lastError.isValid()) { return this->m_lastError; }
    00156
    00157       QModelIndex idxTopLeft = this->index(row, 0);
    00158       QModelIndex idxBottomRight = this->index(row, (this->m_lstDataMember.count() - 1));
    00159       this->raiseEvent_dataChanged(idxTopLeft, idxBottomRight);
    00160       this->updateKey(row);
    00161       return this->m_lastError;
    00162    }
    00163
    00164    virtual QSqlError qxInsert(const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00165    {
    00166       Q_UNUSED(pDatabase);
    00167       if (relation.count() > 0) { this->syncAllNestedModel(relation); }
    00168
    00169       type_collection_ptr tmp;
    00170       tmp.reset(new type_collection());
    00171       (* tmp) = this->m_model;
    00172
    00173       S services;
    00174       this->m_lastError = services.insert(tmp, relation);
    00175
    00176       if (! this->m_lastError.isValid()) { this->updateAllKeys(); }
    00177       return this->m_lastError;
    00178    }
    00179
    00180    virtual QSqlError qxInsertRow(int row, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00181    {
    00182       Q_UNUSED(pDatabase);
    00183       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00184       if (relation.count() > 0) { this->syncNestedModel(row, relation); }
    00185       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00186
    00187       S services;
    00188       this->m_lastError = services.insert(pItem, relation);
    00189
    00190       if (! this->m_lastError.isValid()) { this->updateKey(row); }
    00191       return this->m_lastError;
    00192    }
    00193
    00194    virtual QSqlError qxUpdate(const qx::QxSqlQuery & query = qx::QxSqlQuery(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00195    {
    00196       Q_UNUSED(pDatabase);
    00197       if (relation.count() > 0) { this->syncAllNestedModel(relation); }
    00198
    00199       type_collection_ptr tmp;
    00200       tmp.reset(new type_collection());
    00201       (* tmp) = this->m_model;
    00202
    00203       S services;
    00204       this->m_lastError = services.update(tmp, query, this->m_lstColumns, relation);
    00205
    00206       if (! this->m_lastError.isValid()) { this->updateAllKeys(); }
    00207       return this->m_lastError;
    00208    }
    00209
    00210    virtual QSqlError qxUpdateRow(int row, const qx::QxSqlQuery & query = qx::QxSqlQuery(), const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00211    {
    00212       Q_UNUSED(pDatabase);
    00213       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00214       if (relation.count() > 0) { this->syncNestedModel(row, relation); }
    00215       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00216
    00217       S services;
    00218       this->m_lastError = services.update(pItem, query, this->m_lstColumns, relation);
    00219
    00220       if (! this->m_lastError.isValid()) { this->updateKey(row); }
    00221       return this->m_lastError;
    00222    }
    00223
    00224    virtual QSqlError qxSave(const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00225    {
    00226       Q_UNUSED(pDatabase);
    00227       if (relation.count() > 0) { this->syncAllNestedModel(relation); }
    00228
    00229       type_collection_ptr tmp;
    00230       tmp.reset(new type_collection());
    00231       (* tmp) = this->m_model;
    00232
    00233       S services;
    00234       this->m_lastError = services.save(tmp, relation);
    00235
    00236       if (! this->m_lastError.isValid()) { this->updateAllKeys(); }
    00237       return this->m_lastError;
    00238    }
    00239
    00240    virtual QSqlError qxSaveRow(int row, const QStringList & relation = QStringList(), QSqlDatabase * pDatabase = NULL)
    00241    {
    00242       Q_UNUSED(pDatabase);
    00243       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00244       if (relation.count() > 0) { this->syncNestedModel(row, relation); }
    00245       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00246
    00247       S services;
    00248       this->m_lastError = services.save(pItem, relation);
    00249
    00250       if (! this->m_lastError.isValid()) { this->updateKey(row); }
    00251       return this->m_lastError;
    00252    }
    00253
    00254    virtual QSqlError qxDeleteById(const QVariant & id, QSqlDatabase * pDatabase = NULL)
    00255    {
    00256       Q_UNUSED(pDatabase);
    00257       type_ptr pItem = type_ptr(new T());
    00258       if (! this->m_pDataMemberId) { qDebug("[QxOrm] problem with 'qxDeleteById()' method : '%s'", "data member id not registered"); qAssert(false); }
    00259       if (! this->m_pDataMemberId) { this->m_lastError = QSqlError("[QxOrm] problem with 'qxDeleteById()' method : 'data member id not registered'", "", QSqlError::UnknownError); return this->m_lastError; }
    00260       this->m_pDataMemberId->fromVariant(pItem.get(), id);
    00261
    00262       S services;
    00263       this->m_lastError = services.deleteById(pItem);
    00264       return this->m_lastError;
    00265    }
    00266
    00267    virtual QSqlError qxDeleteAll(QSqlDatabase * pDatabase = NULL)
    00268    {
    00269       Q_UNUSED(pDatabase);
    00270       S services;
    00271       this->m_lastError = services.deleteAll();
    00272       return this->m_lastError;
    00273    }
    00274
    00275    virtual QSqlError qxDeleteByQuery(const qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL)
    00276    {
    00277       Q_UNUSED(pDatabase);
    00278       S services;
    00279       this->m_lastError = services.deleteByQuery(query);
    00280       return this->m_lastError;
    00281    }
    00282
    00283    virtual QSqlError qxDeleteRow(int row, QSqlDatabase * pDatabase = NULL)
    00284    {
    00285       Q_UNUSED(pDatabase);
    00286       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00287       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00288
    00289       S services;
    00290       this->m_lastError = services.deleteById(pItem);
    00291       return this->m_lastError;
    00292    }
    00293
    00294    virtual QSqlError qxDestroyById(const QVariant & id, QSqlDatabase * pDatabase = NULL)
    00295    {
    00296       Q_UNUSED(pDatabase);
    00297       type_ptr pItem = type_ptr(new T());
    00298       if (! this->m_pDataMemberId) { qDebug("[QxOrm] problem with 'qxDeleteById()' method : '%s'", "data member id not registered"); qAssert(false); }
    00299       if (! this->m_pDataMemberId) { this->m_lastError = QSqlError("[QxOrm] problem with 'qxDeleteById()' method : 'data member id not registered'", "", QSqlError::UnknownError); return this->m_lastError; }
    00300       this->m_pDataMemberId->fromVariant(pItem.get(), id);
    00301
    00302       S services;
    00303       this->m_lastError = services.destroyById(pItem);
    00304       return this->m_lastError;
    00305    }
    00306
    00307    virtual QSqlError qxDestroyAll(QSqlDatabase * pDatabase = NULL)
    00308    {
    00309       Q_UNUSED(pDatabase);
    00310       S services;
    00311       this->m_lastError = services.destroyAll();
    00312       return this->m_lastError;
    00313    }
    00314
    00315    virtual QSqlError qxDestroyByQuery(const qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL)
    00316    {
    00317       Q_UNUSED(pDatabase);
    00318       S services;
    00319       this->m_lastError = services.destroyByQuery(query);
    00320       return this->m_lastError;
    00321    }
    00322
    00323    virtual QSqlError qxDestroyRow(int row, QSqlDatabase * pDatabase = NULL)
    00324    {
    00325       Q_UNUSED(pDatabase);
    00326       if ((row < 0) || (row >= this->m_model.count())) { return QSqlError(); }
    00327       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QSqlError(); }
    00328
    00329       S services;
    00330       this->m_lastError = services.destroyById(pItem);
    00331       return this->m_lastError;
    00332    }
    00333
    00334    virtual QSqlError qxExecuteQuery(qx::QxSqlQuery & query, QSqlDatabase * pDatabase = NULL)
    00335    {
    00336       Q_UNUSED(pDatabase);
    00337       this->clear();
    00338
    00339       S services;
    00340       type_collection_ptr tmp;
    00341       tmp.reset(new type_collection());
    00342       this->m_lastError = services.executeQuery(query, tmp);
    00343
    00344       if (tmp->count() <= 0) { return this->m_lastError; }
    00345       this->beginResetModel();
    00346       this->m_model = (* tmp);
    00347       this->updateShowEmptyLine();
    00348       this->endResetModel();
    00349       return this->m_lastError;
    00350    }
    00351
    00352    virtual qx_bool qxExist(const QVariant & id, QSqlDatabase * pDatabase = NULL)
    00353    {
    00354       Q_UNUSED(pDatabase);
    00355       type_ptr pItem = type_ptr(new T());
    00356       if (! this->m_pDataMemberId) { qDebug("[QxOrm] problem with 'qxExist()' method : '%s'", "data member id not registered"); qAssert(false); }
    00357       if (! this->m_pDataMemberId) { return qx_bool(false); }
    00358       this->m_pDataMemberId->fromVariant(pItem.get(), id);
    00359
    00360       S services;
    00361       return services.exist(pItem);
    00362    }
    00363
    00364    virtual qx::QxInvalidValueX qxValidate(const QStringList & groups = QStringList())
    00365    {
    00366       Q_UNUSED(groups);
    00367       S services;
    00368       type_collection_ptr tmp;
    00369       tmp.reset(new type_collection());
    00370       (* tmp) = this->m_model;
    00371       return services.isValid(tmp);
    00372    }
    00373
    00374    virtual qx::QxInvalidValueX qxValidateRow(int row, const QStringList & groups = QStringList())
    00375    {
    00376       Q_UNUSED(groups);
    00377       if ((row < 0) || (row >= this->m_model.count())) { return qx::QxInvalidValueX(); }
    00378       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return qx::QxInvalidValueX(); }
    00379
    00380       S services;
    00381       return services.isValid(pItem);
    00382    }
    00383
    00384 protected:
    00385
    00386 #ifndef _QX_NO_JSON
    00387
    00388    virtual QVariant getRelationshipValues_Helper(int row, const QString & relation, bool bLoadFromDatabase, const QString & sAppendRelations)
    00389    {
    00390       if ((row < 0) || (row >= this->m_model.count())) { return QVariant(); }
    00391       if (! this->m_pDataMemberId || ! this->m_pDataMemberX || ! this->m_pDataMemberX->exist(relation)) { return QVariant(); }
    00392       IxDataMember * pDataMember = this->m_pDataMemberX->get_WithDaoStrategy(relation); if (! pDataMember) { return QVariant(); }
    00393       IxSqlRelation * pRelation = (pDataMember->hasSqlRelation() ? pDataMember->getSqlRelation() : NULL); if (! pRelation) { return QVariant(); }
    00394       type_ptr pItem = this->m_model.getByIndex(row); if (! pItem) { return QVariant(); }
    00395       type_ptr pItemTemp = pItem;
    00396
    00397       if (bLoadFromDatabase)
    00398       {
    00399          QString sRelation = relation;
    00400          if (! sAppendRelations.isEmpty() && ! sAppendRelations.startsWith("->") && ! sAppendRelations.startsWith(">>")) { sRelation += "->" + sAppendRelations; }
    00401          else if (! sAppendRelations.isEmpty()) { sRelation += sAppendRelations; }
    00402          pItemTemp = type_ptr(new T());
    00403          QVariant id = this->m_pDataMemberId->toVariant(pItem.get());
    00404          this->m_pDataMemberId->fromVariant(pItemTemp.get(), id);
    00405
    00406          S services; QStringList columns;
    00407          QSqlError daoError = services.fetchById(pItemTemp, columns, QStringList() << sRelation);
    00408          if (daoError.isValid()) { return QVariant(); }
    00409       }
    00410
    00411       QJsonValue json = pDataMember->toJson(pItemTemp.get()); if (json.isNull()) { return QVariant(); }
    00412       if (json.isArray()) { return json.toArray().toVariantList(); }
    00413       return json.toObject().toVariantMap();
    00414    }
    00415
    00416 #endif // _QX_NO_JSON
    00417
    00418 };
    00419
    00420 } // namespace qx
    00421
    00422 #endif // _QX_MODEL_SERVICE_H_