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/*
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* Copyright (C) 2015 Christian Ehringfeld <c.ehringfeld@t-online.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QVariantList>
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#include "entitymanager.h"
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#include "enums/databasetype.h"
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#include "databasemigration.h"
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using namespace CuteEntityManager;
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QStringList EntityManager::connectionNames = QStringList();
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QStringList EntityManager::getConnectionNames() {
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return EntityManager::connectionNames;
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}
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QSharedPointer<QueryBuilder> EntityManager::getQueryBuilder() const {
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return this->schema->getQueryBuilder();
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}
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EntityManager::EntityManager(QSqlDatabase database) : QObject() {
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auto db = new Database(database);
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this->db = QSharedPointer<Database>(db);
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this->init();
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}
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EntityManager::EntityManager(const QString &databaseType, QString databasename ,
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QString hostname,
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QString username,
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QString password, QString port, bool logQueries) : QObject() {
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auto db = new Database(databaseType, this->createConnection(), hostname,
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databasename, username,
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password,
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port.toInt(), true, logQueries);
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this->db = QSharedPointer<Database>(db);
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this->init();
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}
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void EntityManager::init() {
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auto schema = Database::getSchema(Database::getDatabaseType(
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this->db->getDatabase().driverName()), this->db);
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this->schema = QSharedPointer<Schema>(schema);
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this->schema->setTables(this->schema->getTableSchemas());
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this->queryInterpreter = QSharedPointer<QueryInterpreter>(new QueryInterpreter(
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this->schema->getQueryBuilder()));
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}
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EntityManager::~EntityManager() {
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EntityManager::removeConnectionName(this->db->getConnectionName());
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}
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bool EntityManager::startup(QString version, QStringList toInitialize) {
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QSharedPointer<Entity> dbm = QSharedPointer<DatabaseMigration>
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(new DatabaseMigration());
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QHash<QString, QVariant> map = QHash<QString, QVariant>();
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bool ok = true;
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map.insert("version", version);
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if (!this->schema->getTableNames().contains(dbm->getTablename())) {
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this->createTable(dbm, true);
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}
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if (this->findAllByAttributes(map, dbm->getTablename()).isEmpty()) {
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for (int var = 0; var < toInitialize.size(); ++var) {
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if (ok) {
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QString c = toInitialize.at(var);
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ok = this->createTable(QSharedPointer<Entity>
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(EntityInstanceFactory::createInstance(c)));
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} else {
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break;
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}
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}
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if (ok) {
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auto dbmPtr = dbm.objectCast<DatabaseMigration>();
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dbmPtr->setVersion(version);
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dbmPtr->setApplyTime(QDateTime::currentDateTime());
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this->create(dbm);
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}
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this->schema->setTables(this->schema->getTableSchemas());
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}
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return ok;
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}
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bool EntityManager::executeQuery(const QString &query) {
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return this->db->exec(query);
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}
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bool EntityManager::checkTable(const QSharedPointer<Entity> &entity) {
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bool rc = true;
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if (!this->schema->containsTable(entity->getTablename())
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&& this->schema->getQueryBuilder()->createTable(entity)) {
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this->schema->getTableSchema(entity->getTablename(), true);
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rc = this->schema->getTables().contains(entity->getTablename());
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}
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return rc;
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}
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QSharedPointer<Database> EntityManager::getDb() const {
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return db;
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}
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void EntityManager::setDb(const QSharedPointer<Database> &value) {
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db = value;
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}
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QSharedPointer<Schema> EntityManager::getSchema() const {
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return schema;
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}
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void EntityManager::refresh(QSharedPointer<Entity> &entity) {
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entity = this->findById(entity->getProperty(
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entity->getPrimaryKey()).toLongLong(),
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EntityHelper::getClassName(entity.data()));
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}
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void EntityManager::setSchema(const QSharedPointer<Schema> &value) {
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schema = value;
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}
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QList<QHash<QString, QVariant> > EntityManager::selectByQuery(Query &query) {
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QSqlQuery q = this->queryInterpreter->build(query);
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return this->convertQueryResult(q);
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}
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QList<QHash<QString, QVariant> > EntityManager::selectBySql(
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const QString &sql) {
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QSqlQuery q = this->db->select(sql);
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return this->convertQueryResult(q);
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}
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qint8 EntityManager::count(Query &query) {
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qint8 rc = 0;
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query.appendSelect("COUNT(*)");
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QSqlQuery q = this->queryInterpreter->build(query);
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this->db->select(q);
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if (q.next()) {
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rc = q.value(0).toInt();
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}
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return rc;
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}
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QString EntityManager::createConnection() {
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QStringList l = EntityManager::getConnectionNames();
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QString conName = "";
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bool ok = false;
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qint16 i = 0;
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while (!ok) {
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if (l.contains("con" + QString::number(i))) {
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++i;
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} else {
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l.append("con" + QString::number(i));
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ok = true;
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conName = "con" + QString::number(i);
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EntityManager::setConnectionNames(l);
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}
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}
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return conName;
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}
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void EntityManager::removeConnectionName(const QString &name) {
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EntityManager::connectionNames.removeOne(name);
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}
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QSharedPointer<Entity> EntityManager::findById(const qint64 &id,
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QSharedPointer<Entity> &e,
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const bool refresh) {
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QSharedPointer<Entity> r;
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if (!e.isNull() && (refresh
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|| !(r = this->cache.get(id, EntityHelper::getClassname(e.data()))))) {
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e->setId(id);
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auto map = this->findByPk(id, e);
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r = this->convert(map, EntityHelper::getClassname(e.data()), refresh);
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}
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return r;
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}
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QSharedPointer<Entity> EntityManager::findById(const qint64 &id,
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const QString &classname) {
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QSharedPointer<Entity> e = QSharedPointer<Entity>
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(EntityInstanceFactory::createInstance(classname));
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return this->findById(id, e);
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}
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void EntityManager::manyToOne(const QSharedPointer<Entity> &entity,
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const QVariant &id,
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const QMetaProperty &property, const bool refresh) {
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qint64 convertedId = -1;
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bool ok = false;
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if ((convertedId = id.toLongLong(&ok)) && ok && convertedId > -1) {
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QString className = EntityInstanceFactory::extractEntityType(
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property.typeName());
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QSharedPointer<Entity> ptr = QSharedPointer<Entity>();
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if (refresh || !(this->cache.contains(convertedId, className)
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&& (ptr = this->cache.get(convertedId, className)) && ptr)) {
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ptr = this->findById(convertedId, className);
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}
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EntityHelper::setProperty(entity, ptr, property);
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}
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}
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void EntityManager::oneToMany(const QSharedPointer<Entity> &entity,
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const Relation &r,
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const QMetaProperty &property, const bool refresh) {
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if (entity.data() && entity->getId() > -1) {
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auto e = QSharedPointer<Entity>(EntityInstanceFactory::createInstance(
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EntityInstanceFactory::extractEntityType(
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property.typeName())));
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if (e) {
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QSqlQuery q = this->schema->getQueryBuilder()->oneToMany(e->getTablename(),
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this->schema->getQueryBuilder()->generateColumnNameID(r.getMappedBy()),
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entity->getId());
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auto listMap = this->convertQueryResult(q);
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auto entities = this->convert(listMap, EntityHelper::getClassname(e.data()),
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refresh);
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EntityHelper::setListProperty(entity, entities, property);
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}
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}
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}
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void EntityManager::oneToOne(const QSharedPointer<Entity> &entity,
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const Relation &r,
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const QMetaProperty &property, const bool refresh,
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const QVariant &id) {
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if (r.getMappedBy().isEmpty()) {
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this->manyToOne(entity, id, property);
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} else {
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auto e = QSharedPointer<Entity>(EntityInstanceFactory::createInstance(
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EntityInstanceFactory::extractEntityType(property.typeName())));
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if (e) {
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QSqlQuery q = this->schema->getQueryBuilder()->oneToMany(
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e->getTablename(),
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this->schema->getQueryBuilder()->generateColumnNameID(
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r.getMappedBy()),
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entity->getProperty(entity->getPrimaryKey()).toLongLong(), 1);
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auto listMap = this->convertQueryResult(q);
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auto entities = this->convert(listMap, EntityHelper::getClassname(e.data()),
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refresh);
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if (!entities.isEmpty()) {
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QSharedPointer<Entity> ptr = entities.at(0);
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EntityHelper::setProperty(entity, ptr, property);
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}
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}
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}
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}
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bool EntityManager::canPersistRelation(const Relation &relation,
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const RelationType &r, const QVariant &var) const {
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return relation.getType() == r && var.canConvert<QVariantList>();
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}
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void EntityManager::savePrePersistedRelations(const QSharedPointer<Entity>
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&entity) {
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auto relations = EntityHelper::getRelationProperties(entity.data());
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auto iterator = relations.constBegin();
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while (iterator != relations.constEnd()) {
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const Relation r = iterator.key();
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auto var = iterator.value().read(entity.data());
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if (!var.isNull()) {
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if (r.getType() == RelationType::MANY_TO_ONE) {
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auto e = EntityInstanceFactory::castQVariant(var);
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if (this->shouldBeSaved(e, r)) {
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this->save(e);
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auto fkProp = EntityHelper::mappedProperty(r, e);
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if (fkProp.isValid()) {
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EntityHelper::addEntityToListProperty(e, entity, fkProp);
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}
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}
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} else if (r.getType() == RelationType::ONE_TO_ONE
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&& r.getMappedBy().isEmpty()) {
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auto e = EntityInstanceFactory::castQVariant(var);
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this->save(e);
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auto prop = EntityHelper::mappedProperty(r, e);
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if (prop.isValid()) {
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EntityHelper::setProperty(e, entity, prop);
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}
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}
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}
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++iterator;
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}
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}
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void EntityManager::savePostPersistedRelations(const QSharedPointer<Entity>
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&entity) {
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auto relations = EntityHelper::getRelationProperties(entity.data());
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auto iterator = relations.constBegin();
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while (iterator != relations.constEnd()) {
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const Relation r = iterator.key();
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auto var = iterator.value().read(entity.data());
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if (!var.isNull()) {
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if (this->canPersistRelation(r, RelationType::MANY_TO_MANY, var)) {
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this->persistManyToMany(entity, r, var);
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} else if (this->canPersistRelation(r, RelationType::ONE_TO_MANY, var)) {
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QList<QSharedPointer<Entity>> list = EntityInstanceFactory::castQVariantList(
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var);
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if (!list.isEmpty()) {
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auto fkProp = EntityHelper::mappedProperty(r, list.at(0));
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for (int var = 0; var < list.size(); ++var) {
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auto e = list.at(var);
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if (this->shouldBeSaved(e, r)) {
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this->save(e);
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if (fkProp.isValid()) {
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EntityHelper::addEntityToListProperty(e, entity, fkProp);
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}
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}
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}
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}
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} else if (r.getType() == RelationType::ONE_TO_ONE
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&& !r.getMappedBy().isEmpty()) {
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auto e = EntityInstanceFactory::castQVariant(var);
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this->save(e);
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auto fkProp = EntityHelper::mappedProperty(r, e);
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if (fkProp.isValid()) {
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EntityHelper::addEntityToListProperty(e, entity, fkProp);
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}
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}
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}
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++iterator;
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}
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}
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void EntityManager::persistMappedByRelation(const QList<QSharedPointer<Entity> >
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&list, QSqlQuery &q, const QSharedPointer<Entity> &entity,
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const QSharedPointer<Entity> &ptr, const Relation &r,
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const QString &tblName) {
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q.clear();
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QList<QSharedPointer<Entity>> saved =
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r.getCascadeType().contains(CascadeType::ALL) ||
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r.getCascadeType().contains(CascadeType::MERGE) ||
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r.getCascadeType().contains(CascadeType::PERSIST) ?
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this->saveRelationEntities(list, r) : list;
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this->db->startTransaction();
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auto builder = this->schema->getQueryBuilder();
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q = builder->manyToManyInsert(tblName,
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builder->generateManyToManyColumnName(entity),
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builder->generateManyToManyColumnName(ptr));
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q.bindValue(0, entity->getProperty(entity->getPrimaryKey()));
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auto prop = EntityHelper::mappedProperty(r, ptr);
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bool propertyIsValid = this->isRelationPropertyValid(prop, r, entity, ptr);
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QSharedPointer<Entity> item;
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for (int var = 0; var < saved.size(); ++var) {
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item = list.at(var);
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if (item->getProperty(item->getPrimaryKey()).toLongLong() > -1) {
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q.bindValue(1, item->getProperty(ptr->getPrimaryKey()));
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bool ok = this->db->exec(q);
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if (ok && propertyIsValid) {
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EntityHelper::addEntityToListProperty(item, entity, prop);
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}
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}
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}
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if (!this->db->commitTransaction()) {
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this->db->rollbackTransaction();
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}
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}
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bool EntityManager::isRelationPropertyValid(const QMetaProperty &prop,
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const Relation &r, const QSharedPointer<Entity> &e,
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const QSharedPointer<Entity> &relatedEntity) {
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bool propertyIsValid = prop.isValid() && prop.isReadable() && prop.isWritable();
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if (!propertyIsValid) {
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qDebug() << "Relation is incomplete:" << r.getPropertyName();
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qDebug() << "Involved entities: " << EntityHelper::getClassName(
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e.data()) <<
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"(MainEntitiy) and " << EntityHelper::getClassName(relatedEntity.data());
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}
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return propertyIsValid;
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}
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bool EntityManager::shouldBeSaved(QSharedPointer<Entity> &entity,
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const Relation &r) {
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return entity && (r.getCascadeType().contains(CascadeType::ALL)
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|| (entity->getProperty(entity->getPrimaryKey()) > -1
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&& r.getCascadeType().contains(CascadeType::MERGE))
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|| (entity->getProperty(entity->getPrimaryKey()) <= -1
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&& r.getCascadeType().contains(CascadeType::PERSIST)));
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}
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void EntityManager::removeRelations(const QSharedPointer<Entity> &entity) {
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auto props = EntityHelper::getRelationProperties(entity.data());
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auto iterator = props.constBegin();
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while (iterator != props.constEnd()) {
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const Relation r = iterator.key();
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auto property = iterator.value();
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auto var = property.read(entity.data());
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if (r.getType() == RelationType::MANY_TO_MANY) {
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this->removeManyToManyEntityList(entity, r, var);
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} else if (r.getType() == RelationType::ONE_TO_MANY) {
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if (r.getCascadeType().contains(CascadeType::REMOVE)
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|| r.getCascadeType().contains(CascadeType::ALL)) {
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this->removeEntityList(var);
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} else {
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this->setNullOneToManyRelation(var, r);
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}
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} else if (r.getType() == RelationType::MANY_TO_ONE
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|| r.getType() == RelationType::MANY_TO_ONE) {
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this->setNullEntityPropertyRelation(var, r);
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}
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++iterator;
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}
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}
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void EntityManager::setNullOneToManyRelation(QVariant &var, const Relation &r) {
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if (!r.getMappedBy().isEmpty() && !var.isNull()
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&& var.canConvert<QVariantList>()) {
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auto list = EntityInstanceFactory::castQVariantList(var);
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if (!list.isEmpty()) {
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auto metas = EntityHelper::getMetaProperties(list.at(0).data());
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if (metas.contains(r.getMappedBy())) {
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for (int var = 0; var < list.size(); ++var) {
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auto entity = list.at(var);
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EntityHelper::setProperty(entity, QSharedPointer<Entity>(),
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metas.value(r.getMappedBy()));
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this->save(entity);
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}
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}
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}
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}
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}
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void EntityManager::setNullEntityPropertyRelation(QVariant &var,
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const Relation &r) {
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if (r.getCascadeType().contains(CascadeType::REMOVE)
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|| r.getCascadeType().contains(CascadeType::ALL)) {
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this->removeEntity(var);
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} else if (!r.getMappedBy().isEmpty() && !var.isNull()) {
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auto e = EntityInstanceFactory::castQVariant(var);
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auto metas = EntityHelper::getMetaProperties(e.data());
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if (metas.contains(r.getMappedBy())) {
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EntityHelper::setProperty(e, QSharedPointer<Entity>(),
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metas.value(r.getMappedBy()));
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this->save(e);
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}
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}
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}
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void EntityManager::removeEntity(QVariant &var) {
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if (!var.isNull()) {
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auto e = EntityInstanceFactory::castQVariant(var);
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this->remove(e);
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}
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}
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void EntityManager::removeEntityList(QVariant &var) {
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if (var.canConvert<QVariantList>()) {
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auto list = EntityInstanceFactory::castQVariantList(var);
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for (int var = 0; var < list.size(); ++var) {
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auto entity = list.at(var);
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this->remove(entity);
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}
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}
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}
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void EntityManager::removeManyToManyEntityList(const QSharedPointer<Entity> &e,
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const Relation &r,
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QVariant &var) {
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if (!var.isNull() && var.canConvert<QVariantList>()) {
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auto list = EntityInstanceFactory::castQVariantList(var);
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if (!list.isEmpty()) {
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auto builder = this->schema->getQueryBuilder();
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auto ptr = list.at(0);
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QString tblName = builder->generateManyToManyTableName(e, ptr, r);
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if (this->schema->getTables().contains(tblName)) {
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QSqlQuery q = builder->manyToManyDelete(
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tblName, builder->generateManyToManyColumnName(e),
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e->getProperty(e->getPrimaryKey()).toLongLong());
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if (this->db->exec(q)) {
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bool refresh = r.getCascadeType().contains(CascadeType::REFRESH)
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|| r.getCascadeType().contains(CascadeType::ALL);
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bool remove = r.getCascadeType().contains(CascadeType::REMOVE)
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|| r.getCascadeType().contains(CascadeType::ALL);
|
|
auto fkProp = EntityHelper::mappedProperty(r, ptr);
|
|
for (int var = 0; var < list.size(); ++var) {
|
|
auto entity = list.at(var);
|
|
if (remove) {
|
|
this->remove(entity);
|
|
} else if (refresh) {
|
|
EntityHelper::removeEntityFromListProperty(entity, e, fkProp);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
QList<QSharedPointer<Entity>> EntityManager::saveRelationEntities(
|
|
const QList<QSharedPointer<Entity> > &list, const Relation &r) {
|
|
QList<QSharedPointer<Entity>> saved = QList<QSharedPointer<Entity>>();
|
|
QSharedPointer<Entity> ptr;
|
|
for (int var = 0; var < list.size(); ++var) {
|
|
ptr = list.at(var);
|
|
if (this->shouldBeSaved(ptr, r) && this->save(ptr)) {
|
|
saved.append(ptr);
|
|
}
|
|
}
|
|
return saved;
|
|
}
|
|
|
|
void EntityManager::persistManyToMany(const QSharedPointer<Entity> &entity,
|
|
const Relation &r, QVariant &property) {
|
|
auto list = property.value<QList<QVariant>>();
|
|
if (!list.isEmpty() && !(list.at(0).isNull())) {
|
|
auto var = list.at(0);
|
|
auto ptr = EntityInstanceFactory::castQVariant(var);
|
|
auto builder = this->schema->getQueryBuilder();
|
|
QString tblName = builder->generateManyToManyTableName(entity, ptr, r);
|
|
if (this->schema->getTables().contains(tblName)) {
|
|
QSqlQuery q = builder->manyToManyDelete(
|
|
tblName, builder->generateManyToManyColumnName(entity),
|
|
entity->getProperty(entity->getPrimaryKey()).toLongLong());
|
|
if (this->db->exec(q)) {
|
|
auto nList = EntityInstanceFactory::castQVariantList(property);
|
|
this->persistMappedByRelation(nList, q, entity, ptr, r, tblName);
|
|
}
|
|
} else {
|
|
this->missingManyToManyTable(tblName, entity, r);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void EntityManager::missingManyToManyTable(const QString &tblName,
|
|
const QSharedPointer<Entity> &e, const Relation &r) {
|
|
qDebug() << "MANY_TO_MANY Table " << tblName << " is missing";
|
|
qDebug() << "Entity " << EntityHelper::getClassName(e.data()) << " is affected";
|
|
qDebug() << "Relation of property: " << r.getPropertyName();
|
|
/**
|
|
@todo wait for Qt 5.5.1
|
|
@see https://codereview.qt-project.org/#/c/122232/
|
|
*/
|
|
//qDebug() << "RelationType:" << r.getType() << " MappedBy:" << r.getMappedBy();
|
|
}
|
|
|
|
void EntityManager::manyToMany(const QSharedPointer<Entity> &entity,
|
|
const QMetaProperty &property, const Relation &relation, const bool refresh) {
|
|
QSharedPointer<Entity> secEntityPtr = QSharedPointer<Entity>
|
|
(EntityInstanceFactory::createInstance(EntityInstanceFactory::extractEntityType(
|
|
QString(property.typeName()))));
|
|
auto builder = this->schema->getQueryBuilder();
|
|
if (secEntityPtr) {
|
|
QString tblName = builder->generateManyToManyTableName(entity, secEntityPtr,
|
|
relation);
|
|
if (this->schema->getTables().contains(tblName)) {
|
|
QSqlQuery q = builder->manyToMany(tblName,
|
|
builder->generateManyToManyColumnName(entity),
|
|
entity->getProperty(entity->getPrimaryKey()).toLongLong());
|
|
auto listMap = this->convertQueryResult(q);
|
|
QSharedPointer<Entity> e = QSharedPointer<Entity>();
|
|
for (int var = 0; var < listMap.size(); ++var) {
|
|
auto id = listMap.at(var).value(builder->generateManyToManyColumnName(
|
|
secEntityPtr));
|
|
if (!refresh
|
|
&& this->cache.contains(id.toLongLong(),
|
|
EntityHelper::getClassname(secEntityPtr.data()))) {
|
|
e = this->cache.get(id.toLongLong(),
|
|
EntityHelper::getClassname(secEntityPtr.data()));
|
|
} else {
|
|
e = this->findById(id.toLongLong(),
|
|
EntityHelper::getClassname(secEntityPtr.data()));
|
|
}
|
|
if (e) {
|
|
EntityHelper::addEntityToListProperty(entity, e, property);
|
|
}
|
|
}
|
|
} else {
|
|
this->missingManyToManyTable(tblName, entity, relation);
|
|
}
|
|
}
|
|
}
|
|
|
|
QList<QSharedPointer<Entity> > EntityManager::findEntityByAttributes(
|
|
const QSharedPointer<Entity>
|
|
&entity,
|
|
bool ignoreID) {
|
|
auto maps = this->findAllByAttributes(entity, ignoreID);
|
|
return this->convert(maps, EntityHelper::getClassname(entity.data()));
|
|
}
|
|
|
|
/**
|
|
* @todo should be an insert statement with many values
|
|
* @brief EntityManager::create
|
|
* @param entities
|
|
* @return
|
|
*/
|
|
bool EntityManager::create(QList<QSharedPointer<Entity> > entities,
|
|
const bool persistRelations) {
|
|
bool ok = true;
|
|
foreach (QSharedPointer<Entity> ent, entities) {
|
|
ok = this->create(ent, persistRelations);
|
|
if (!ok) {
|
|
break;
|
|
}
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
bool EntityManager::create(QSharedPointer<Entity> &entity,
|
|
const bool persistRelations, const bool checkDuplicate) {
|
|
bool rc = false;
|
|
if (this->checkTable(entity) && !(checkDuplicate && this->count(entity) > 0)) {
|
|
if (persistRelations) {
|
|
this->savePrePersistedRelations(entity);
|
|
}
|
|
this->db->startTransaction();
|
|
QList<QSqlQuery> q = this->schema->getQueryBuilder()->create(
|
|
entity);
|
|
bool first = true;
|
|
QVariant id = -1;
|
|
for (int var = 0; var < q.size(); ++var) {
|
|
auto query = q.at(var);
|
|
if (!first) {
|
|
this->schema->getQueryBuilder()->bindValue(entity->getPrimaryKey(), id, query);
|
|
}
|
|
rc = this->db->exec(query);
|
|
if (!rc) {
|
|
qDebug() << "class is erroneous:" << EntityHelper::getClassname(entity.data());
|
|
break;
|
|
}
|
|
if (first) {
|
|
id = query.lastInsertId();
|
|
entity->setProperty(entity->getPrimaryKey(), id);
|
|
first = false;
|
|
}
|
|
}
|
|
if (!rc || !this->db->commitTransaction()) {
|
|
this->db->rollbackTransaction();
|
|
entity->setId(-1);
|
|
rc = false;
|
|
} else {
|
|
this->cache.insert(entity);
|
|
if (persistRelations) {
|
|
this->savePostPersistedRelations(entity);
|
|
}
|
|
rc = true;
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
bool EntityManager::merge(QSharedPointer<Entity> &entity, bool withRelations) {
|
|
if (entity->getId() > -1 && this->count(entity) == 1) {
|
|
if (withRelations) {
|
|
this->savePrePersistedRelations(entity);
|
|
}
|
|
this->db->startTransaction();
|
|
QList<QSqlQuery> q = this->schema->getQueryBuilder()->merge(
|
|
entity);
|
|
bool ok = this->db->exec(q);
|
|
if (!ok || !this->db->commitTransaction()) {
|
|
this->db->rollbackTransaction();
|
|
return false;
|
|
} else if (ok && withRelations) {
|
|
this->savePostPersistedRelations(entity);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
QHash<QString, QVariant> EntityManager::findByPk(qint64 id,
|
|
const QSharedPointer<Entity>
|
|
&e) {
|
|
QSqlQuery q = this->schema->getQueryBuilder()->find(id, e, 0,
|
|
e->getPrimaryKey());
|
|
auto listMap = this->convertQueryResult(q);
|
|
if (!listMap.isEmpty()) {
|
|
return listMap.at(0);
|
|
}
|
|
return QHash<QString, QVariant>();
|
|
}
|
|
|
|
|
|
QList<QHash<QString, QVariant> > EntityManager::findAllByAttributes(
|
|
const QSharedPointer<Entity>
|
|
&entity,
|
|
bool ignoreID) {
|
|
QSqlQuery q = this->schema->getQueryBuilder()->findByAttributes(
|
|
entity, ignoreID);
|
|
return this->convertQueryResult(q);
|
|
}
|
|
|
|
QList<QHash <QString, QVariant> > EntityManager::findAllByAttributes(
|
|
const QHash<QString, QVariant> &m, const QString &tblname, bool ignoreID) {
|
|
QSqlQuery q = this->schema->getQueryBuilder()->findByAttributes(m,
|
|
tblname, ignoreID);
|
|
return this->convertQueryResult(q);
|
|
}
|
|
|
|
QList<QHash<QString, QVariant> > EntityManager::convertQueryResult(
|
|
QSqlQuery &q) {
|
|
QList<QHash <QString, QVariant> > listmap = QList<QHash <QString, QVariant> >();
|
|
this->db->select(q);
|
|
QSqlRecord rec = q.record();
|
|
QStringList l = QStringList();
|
|
qint16 field_count = rec.count();
|
|
for (int var = 0; var < field_count; ++var) {
|
|
l.append(rec.fieldName(var));
|
|
}
|
|
QHash<QString, QVariant> map = QHash<QString, QVariant>();
|
|
while (q.next()) {
|
|
for (int var = 0; var < field_count; ++var) {
|
|
map.insert(l.at(var), q.value(rec.indexOf(l.at(var))));
|
|
}
|
|
listmap.append(map);
|
|
}
|
|
return listmap;
|
|
}
|
|
|
|
QList<QHash <QString, QVariant> > EntityManager::findAll(
|
|
const QSharedPointer<Entity> &e) {
|
|
QSqlQuery q = this->schema->getQueryBuilder()->findAll(e);
|
|
return this->convertQueryResult(q);
|
|
}
|
|
|
|
void EntityManager::resolveRelations(const QSharedPointer<Entity> &entity,
|
|
const QHash<QString, QVariant> &map, const bool refresh) {
|
|
auto props = EntityHelper::getRelationProperties(entity.data());
|
|
auto iterator = props.constBegin();
|
|
while (iterator != props.constEnd()) {
|
|
const Relation r = iterator.key();
|
|
const QMetaProperty property = iterator.value();
|
|
QString colName = this->schema->getQueryBuilder()->generateColumnNameID(
|
|
r.getPropertyName());
|
|
switch (r.getType()) {
|
|
case RelationType::MANY_TO_ONE:
|
|
if (map.contains(colName)) {
|
|
this->manyToOne(entity, map.value(colName), property, refresh);
|
|
}
|
|
break;
|
|
case RelationType::MANY_TO_MANY:
|
|
this->manyToMany(entity, property, r, refresh);
|
|
break;
|
|
case RelationType::ONE_TO_MANY:
|
|
this->oneToMany(entity, r, property, refresh);
|
|
break;
|
|
case RelationType::ONE_TO_ONE:
|
|
this->oneToOne(entity, r, property, refresh, map.value(colName));
|
|
break;
|
|
}
|
|
++iterator;
|
|
}
|
|
}
|
|
|
|
bool EntityManager::save(QSharedPointer<Entity> &entity,
|
|
const bool persistRelations) {
|
|
if (entity->getProperty(entity->getPrimaryKey()) > -1) {
|
|
return this->merge(entity, persistRelations);
|
|
} else {
|
|
return this->create(entity, persistRelations);
|
|
}
|
|
}
|
|
|
|
qint64 EntityManager::findId(QSharedPointer<Entity> &entity) {
|
|
qint64 r = -1;
|
|
QSqlQuery q = this->schema->getQueryBuilder()->findId(entity);
|
|
this->db->select(q);
|
|
if (q.next()) {
|
|
r = q.value(0).toLongLong();
|
|
}
|
|
return r;
|
|
}
|
|
|
|
bool EntityManager::remove(QSharedPointer<Entity> &entity) {
|
|
bool rc = false;
|
|
this->db->startTransaction();
|
|
this->removeRelations(entity);
|
|
auto queries = this->schema->getQueryBuilder()->remove(entity);
|
|
bool ok = this->db->exec(queries);
|
|
if (ok && this->db->commitTransaction()) {
|
|
this->cache.remove(entity);
|
|
entity.clear();
|
|
rc = true;
|
|
} else {
|
|
this->db->rollbackTransaction();
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
bool EntityManager::removeAll(QString tblname) {
|
|
return this->schema->getQueryBuilder()->removeAll(tblname).exec();
|
|
}
|
|
|
|
bool EntityManager::createTable(const QSharedPointer<Entity> &entity,
|
|
bool createRelationTables) {
|
|
return this->schema->getQueryBuilder()->createTable(entity,
|
|
createRelationTables);
|
|
}
|
|
|
|
quint8 EntityManager::count(const QSharedPointer<Entity> &entity,
|
|
bool ignoreID) {
|
|
qint8 rc = -1;
|
|
QSqlQuery q = this->schema->getQueryBuilder()->count(entity,
|
|
ignoreID);
|
|
this->db->select(q);
|
|
if (q.next()) {
|
|
rc = q.value(0).toInt();
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
quint8 EntityManager::count(const QString &tableName) {
|
|
qint8 rc = -1;
|
|
QSqlQuery q = this->schema->getQueryBuilder()->count(tableName);
|
|
this->db->select(q);
|
|
if (q.next()) {
|
|
rc = q.value(0).toInt();
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
void EntityManager::setConnectionNames(QStringList list) {
|
|
EntityManager::connectionNames = list;
|
|
}
|
|
|
|
QSharedPointer<Entity> EntityManager::convert(const QHash<QString, QVariant>
|
|
&map,
|
|
const char *classname, const bool refresh) {
|
|
auto ptr = QSharedPointer<Entity>(EntityInstanceFactory::createInstance(
|
|
classname, map));
|
|
this->cache.insert(ptr);
|
|
this->resolveRelations(ptr, map, refresh);
|
|
return ptr;
|
|
}
|
|
|
|
QList<QSharedPointer<Entity> > EntityManager::convert(
|
|
QList<QHash<QString, QVariant> > maps,
|
|
const char *classname, const bool refresh) {
|
|
auto list = QList<QSharedPointer<Entity> >();
|
|
for (int var = 0; var < maps.size(); ++var) {
|
|
auto ptr = this->convert(maps.at(var), classname, refresh);
|
|
list.append(ptr);
|
|
this->cache.insert(ptr);
|
|
}
|
|
return list;
|
|
}
|