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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 <QHash>
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#include <QDir>
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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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#include "attributeresolver.h"
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#include "validators/validatorfactory.h"
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#include "validators/validator.h"
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#include "validators/validatorrule.h"
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#include "entityinspector.h"
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using namespace CuteEntityManager;
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QStringList EntityManager::connectionNames = QStringList();
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QHash<QString, EntityManager *> EntityManager::instances =
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QHash<QString, EntityManager *>();
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QStringList EntityManager::getConnectionNames() {
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return EntityManager::connectionNames;
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}
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EntityManager::EntityManager(QSqlDatabase database, bool logQueries,
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const bool inspectEntities,
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MsgType logActions) : QObject() {
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this->db = QSharedPointer<Database>(new Database(database, true, logQueries, logActions));
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this->init(inspectEntities, logActions);
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}
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void EntityManager::init(bool inspect, const MsgType msgType) {
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EntityInstanceFactory::registerClass<DatabaseMigration>();
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this->schema = QSharedPointer<Schema>(Database::getSchema(Database::getDatabaseType(
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this->db->getDatabase().driverName()), this->db));
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this->schema->setTables(this->schema->getTableSchemas());
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this->ar = QSharedPointer<AttributeResolver>(new AttributeResolver(
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this->schema->getQueryBuilder()));
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this->queryInterpreter = QSharedPointer<QueryInterpreter>(new QueryInterpreter(
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this->ar));
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this->appendToInstanceList();
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if (inspect) {
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EntityInspector inspector = EntityInspector(msgType);
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inspector.checkRegisteredEntities();
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}
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QString loggerFile = this->objectName() + ".log";
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loggerFile.replace("[", "");
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loggerFile.replace("]", "");
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this->logger = QSharedPointer<Logger>(new Logger(QDir::currentPath() + "/" +
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loggerFile, msgType));
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}
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EntityManager::EntityManager(const QString &databaseType, QString databasename,
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QString hostname, QString username, QString password, QString port,
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bool logQueries, QString databaseOptions, const bool inspectEntities,
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CuteEntityManager::MsgType logActions) : QObject() {
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this->db = QSharedPointer<Database>(new Database(databaseType, this->createConnection(),
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hostname,
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databasename, username,
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password,
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port.toInt(), true, logQueries, databaseOptions, logActions));
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this->init(inspectEntities, logActions);
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}
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EntityManager::~EntityManager() {
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EntityManager::removeConnectionName(this->db->getConnectionName());
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EntityManager::instances.remove(this->objectName());
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this->ar = QSharedPointer<AttributeResolver>(nullptr);
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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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void EntityManager::clearCache() {
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this->cache.clear();
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}
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bool EntityManager::saveObject(QSharedPointer<Entity> &entity,
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QList<Entity *> &mergedObjects, const bool persistRelations,
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const bool ignoreHasChanged, const bool validate,
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const bool relationsIgnoreHasChanged) {
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bool merged = mergedObjects.contains(entity.data());
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if (entity && !merged && (ignoreHasChanged || this->hasChanged(entity))) {
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if (entity->getProperty(entity->getPrimaryKey()).toLongLong() > -1) {
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return this->mergeObject(entity, mergedObjects, persistRelations, validate,
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relationsIgnoreHasChanged);
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} else {
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return this->createObject(entity, mergedObjects, persistRelations, false,
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validate, relationsIgnoreHasChanged);
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}
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}
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return merged ? true : false;
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}
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bool EntityManager::mergeObject(QSharedPointer<Entity> &entity,
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QList<Entity *> &mergedObjects, bool withRelations, const bool validate,
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const bool relationsIgnoreHasChanged) {
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bool ok = true;
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if (entity && !mergedObjects.contains(entity.data())) {
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mergedObjects.append(entity.data());
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ok = false;
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if (entity->getId() > -1 && (!validate || this->validate(entity))) {
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if (withRelations) {
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this->savePrePersistedRelations(entity, mergedObjects,
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relationsIgnoreHasChanged);
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}
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this->db->startTransaction();
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QList<QSqlQuery> q = this->schema->getQueryBuilder()->merge(
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entity);
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ok = this->db->exec(q);
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if (!ok || !this->db->commitTransaction()) {
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this->db->rollbackTransaction();
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ok = false;
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} else if (ok && withRelations) {
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this->savePostPersistedRelations(entity, mergedObjects,
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relationsIgnoreHasChanged);
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}
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}
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}
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return ok;
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}
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bool EntityManager::createObject(QSharedPointer<Entity> &entity,
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QList<Entity *> &mergedObjects, const bool persistRelations,
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const bool checkDuplicate, const bool validate,
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const bool relationsIgnoreHasChanged) {
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bool rc = true;
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if (entity && !mergedObjects.contains(entity.data())) {
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mergedObjects.append(entity.data());
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rc = false;
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if (this->checkTable(entity) && (!validate || this->validate(entity))
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&& (!checkDuplicate || this->count(entity) <= 0)) {
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if (persistRelations) {
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this->savePrePersistedRelations(entity, mergedObjects,
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relationsIgnoreHasChanged);
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}
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this->db->startTransaction();
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QList<QSqlQuery> q = this->schema->getQueryBuilder()->create(
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entity);
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bool first = true;
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QVariant id = -1;
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for (int var = 0; var < q.size(); ++var) {
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auto query = q.at(var);
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if (!first) {
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this->schema->getQueryBuilder()->bindValue(entity->getPrimaryKey(), id, query);
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}
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rc = this->db->exec(query);
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if (!rc) {
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this->logger->logMsg("class is erroneous:" + EntityHelper::getClassName(
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entity.data()), MsgType::WARNING);
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break;
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}
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if (first) {
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id = query.lastInsertId();
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entity->setProperty(entity->getPrimaryKey(), id);
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first = false;
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}
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}
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if (!rc || !this->db->commitTransaction()) {
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this->db->rollbackTransaction();
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entity->setId(-1);
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rc = false;
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} else {
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this->cache.insert(entity);
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if (persistRelations) {
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this->savePostPersistedRelations(entity, mergedObjects,
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relationsIgnoreHasChanged, true);
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}
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rc = true;
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}
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}
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entity->idChanged();
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}
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return rc;
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}
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bool EntityManager::create(QList<QSharedPointer<Entity>> &entities,
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const bool persistRelations, const bool checkDuplicate, const bool validate,
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const bool relationsIgnoreHasChanged) {
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bool ok = true;
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auto merged = QList<Entity *>();
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foreach (QSharedPointer<Entity> ent, entities) {
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this->createObject(ent, merged, persistRelations,
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checkDuplicate, validate, relationsIgnoreHasChanged);
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}
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return ok;
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}
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bool EntityManager::save(QList<QSharedPointer<Entity>> &entities,
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const bool persistRelations, const bool ignoreHasChanged, const bool validate,
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const bool relationsIgnoreHasChanged) {
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bool ok = true;
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auto merged = QList<Entity *>();
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foreach (QSharedPointer<Entity> entity, entities) {
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ok = this->saveObject(entity, merged, persistRelations,
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ignoreHasChanged, validate, relationsIgnoreHasChanged);
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if (!ok) {
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break;
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/**
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* @todo error handling
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*/
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}
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}
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return ok;
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}
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bool EntityManager::startup(QString version, QStringList toInitialize,
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bool createIndices) {
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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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QList<QSharedPointer<Entity>> entities = QList<QSharedPointer<Entity>>();
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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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auto entity = QSharedPointer<Entity>
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(EntityInstanceFactory::createInstance(c));
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ok = this->createTable(entity, false);
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entities.append(entity);
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} else {
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this->logger->logMsg("startup of version " + version + " failed",
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MsgType::CRITICAL);
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this->logger->logMsg( "erroneous entity:" + (var == 0 ?
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"null, this should not happen!" : toInitialize.at(var - 1)), MsgType::CRITICAL);
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break;
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}
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}
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if (ok) {
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for (int i = 0; i < entities.size(); ++i) {
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ok = this->schema->getQueryBuilder()->createRelationTables(entities.at(i));
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if (!ok) {
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break;
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}
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}
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}
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if (ok && createIndices) {
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for (int i = 0; i < entities.size(); ++i) {
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ok = this->schema->getQueryBuilder()->createIndices(entities.at(i));
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if (!ok) {
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break;
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}
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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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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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bool EntityManager::validate(QSharedPointer<Entity> &entity) {
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QList<ValidationRule> rules = entity->validationRules();
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QList<ErrorMsg> list = QList<ErrorMsg>();
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for (int i = 0; i < rules.size(); ++i) {
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ValidationRule rule = rules.at(i);
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QSharedPointer<Validator> validator = ValidatorFactory::getValidatorObject(
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rule.getValidatorName());
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if (validator) {
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for (int var = 0; var < rule.getAttributes().size(); ++var) {
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QString attr = rule.getAttributes().at(var);
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QList<ErrorMsg> msgs = validator->validate(entity->getProperty(attr),
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rule.getParams());
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for (int i = 0; i < msgs.size(); ++i) {
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QString emsg = msgs.at(i).getErrorMsg().replace("<property>", attr);
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ErrorMsg m = msgs.at(i);
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m.setErrorMsg(emsg);
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list.append(m);
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}
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}
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}
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}
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entity->setErrors(list);
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return !entity->hasErrors();
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}
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bool EntityManager::hasChanged(QSharedPointer<Entity> &entity) {
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bool changed = true;
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if (entity && entity->getId() > -1) {
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changed = false;
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auto listmap = this->findByPk(entity->getId(), entity);
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auto relations = entity->getRelations();
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QStringList rels = QStringList();
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for (auto i = relations.constBegin(); i != relations.constEnd(); ++i) {
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if (i.value().getType() == RelationType::MANY_TO_ONE
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|| (i.value().getType() == RelationType::ONE_TO_ONE
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&& i.value().getMappedBy().isEmpty())) {
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rels.append(this->schema->getQueryBuilder()->generateColumnNameID(i.key()));
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}
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}
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for (auto i = listmap.constBegin(); i != listmap.constEnd(); ++i) {
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if (rels.contains(i.key())) {
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QString appendix =
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this->schema->getQueryBuilder()->columnNameIDAppendix();
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QString relKey = i.key();
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QVariant v = entity->getProperty(relKey.remove(relKey.size() - appendix.size(),
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appendix.size()));
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if (!v.isNull() && v.data()) {
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auto e = EntityInstanceFactory::castQVariant(v);
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if (e && e->getProperty(e->getPrimaryKey()) != i.value()) {
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changed = true;
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break;
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}
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}
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} else {
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QVariant property = entity->getProperty(i.key());
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changed = i.value() != property;
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if (changed) {
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break;
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}
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}
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}
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}
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return changed;
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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 && (refresh || !(r = this->cache.get(id, EntityHelper::getClassname(e.data()))))) {
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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, const bool refresh) {
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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, refresh);
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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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Attribute *&attr) {
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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 = attr->getRelatedClass()->className();
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QSharedPointer<Entity> ptr = QSharedPointer<Entity>();
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if (!(this->cache.contains(convertedId, className)
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&& (ptr = this->cache.get(convertedId, className)))) {
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ptr = this->findById(convertedId, className);
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}
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EntityHelper::setProperty(entity,ptr,attr->getMetaProperty());
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}
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}
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void EntityManager::oneToMany(const QSharedPointer<Entity> &entity,
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Attribute *&attr) {
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if (entity.data() && entity->getId() > -1) {
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auto e = QSharedPointer<Entity>(EntityInstanceFactory::createInstance(attr));
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if (e) {
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Query query = this->schema->getQueryBuilder()->oneToMany(
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attr->getRelatedTable(),
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attr->getRelatedColumnName(), entity->getId());
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QSqlQuery q = this->queryInterpreter->build(query);
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auto listMap = this->convertQueryResult(q);
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auto relationalClass = EntityHelper::getClassName(e.data());
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auto entities = this->convert(listMap, relationalClass.toLatin1());
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EntityHelper::setListProperty(entity,entities,attr->getMetaProperty());
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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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Attribute *&attr, const QVariant &id) {
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if (attr->getRelation().getMappedBy().isEmpty()) {
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this->manyToOne(entity, id, attr);
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} else {
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auto e = QSharedPointer<Entity>(EntityInstanceFactory::createInstance(attr));
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if (e) {
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Query query = this->schema->getQueryBuilder()->oneToMany(
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e->getTablename(),
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this->schema->getQueryBuilder()->generateColumnNameID(
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attr->getRelation().getMappedBy()),
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entity->getProperty(entity->getPrimaryKey()).toLongLong(), 1);
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QSqlQuery q = this->queryInterpreter->build(query);
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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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if (!entities.isEmpty()) {
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QSharedPointer<Entity> ptr = entities.at(0);
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EntityHelper::setProperty(entity, ptr, attr->getMetaProperty());
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}
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}
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}
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}
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void EntityManager::savePrePersistedRelations(const QSharedPointer<Entity>
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&entity, QList<Entity *> &mergedObjects, bool ignoreHasChanged) {
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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() && var.data()) {
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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 (e && this->shouldBeSaved(e, r)) {
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this->saveObject(e, mergedObjects, true, ignoreHasChanged);
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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
|
|
&& r.getMappedBy().isEmpty()) {
|
|
auto e = EntityInstanceFactory::castQVariant(var);
|
|
if(e) {
|
|
this->saveObject(e, mergedObjects, true, ignoreHasChanged);
|
|
auto prop = EntityHelper::mappedProperty(r, e);
|
|
EntityHelper::setProperty(e, entity, prop);
|
|
}
|
|
}
|
|
++iterator;
|
|
}
|
|
}
|
|
}
|
|
|
|
void EntityManager::savePostPersistedRelations(const QSharedPointer<Entity>
|
|
&entity, QList<Entity *> &mergedObjects, bool ignoreHasChanged, bool newItem) {
|
|
auto relations = EntityHelper::getRelationProperties(entity.data());
|
|
for (auto i = relations.constBegin(); i != relations.constEnd(); ++i) {
|
|
const Relation r = i.key();
|
|
auto var = i.value().read(entity.data());
|
|
if (r.getType() == RelationType::MANY_TO_MANY) {
|
|
this->persistManyToMany(entity, r, var, mergedObjects, ignoreHasChanged,
|
|
newItem);
|
|
} else if (r.getType() == RelationType::ONE_TO_MANY) {
|
|
QList<QSharedPointer<Entity>> list = EntityInstanceFactory::castQVariantList(
|
|
var);
|
|
if (!list.isEmpty()) {
|
|
auto fkProp = EntityHelper::mappedProperty(r, list.at(0));
|
|
for (int var = 0; var < list.size(); ++var) {
|
|
auto e = list.at(var);
|
|
if (e && this->shouldBeSaved(e, r)) {
|
|
EntityHelper::setProperty(e, entity, fkProp);
|
|
this->saveObject(e, mergedObjects, true, ignoreHasChanged);
|
|
}
|
|
}
|
|
}
|
|
} else if (r.getType() == RelationType::ONE_TO_ONE
|
|
&& !r.getMappedBy().isEmpty()) {
|
|
auto e = EntityInstanceFactory::castQVariant(var);
|
|
if(e) {
|
|
auto fkProp = EntityHelper::mappedProperty(r, e);
|
|
EntityHelper::setProperty(e, entity, fkProp);
|
|
this->saveObject(e, mergedObjects, true, ignoreHasChanged);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void EntityManager::persistMappedByRelation(const QList<QSharedPointer<Entity>>
|
|
&list, QSqlQuery &q, const QSharedPointer<Entity> &entity,
|
|
const QSharedPointer<Entity> &ptr, const Relation &r,
|
|
const QString &tblName, QList<Entity *> &mergedObjects) {
|
|
q.clear();
|
|
QList<QSharedPointer<Entity>> saved =
|
|
r.getCascadeType().contains(CascadeType::ALL) ||
|
|
r.getCascadeType().contains(CascadeType::MERGE) ||
|
|
r.getCascadeType().contains(CascadeType::PERSIST) ?
|
|
this->saveRelationEntities(list, r, mergedObjects) : list;
|
|
this->db->startTransaction();
|
|
auto builder = this->schema->getQueryBuilder();
|
|
q = builder->manyToManyInsert(tblName,
|
|
builder->generateManyToManyColumnName(entity, r.getPropertyName()),
|
|
builder->generateManyToManyColumnName(ptr, r.getMappedBy()));
|
|
q.bindValue(0, entity->getProperty(entity->getPrimaryKey()));
|
|
auto prop = EntityHelper::mappedProperty(r, ptr);
|
|
QSharedPointer<Entity> item;
|
|
for (int var = 0; var < saved.size(); ++var) {
|
|
item = list.at(var);
|
|
if (item->getProperty(item->getPrimaryKey()).toLongLong() > -1) {
|
|
q.bindValue(1, item->getProperty(ptr->getPrimaryKey()));
|
|
bool ok = this->db->exec(q);
|
|
if (ok) {
|
|
EntityHelper::addEntityToListProperty(item, entity, prop);
|
|
}
|
|
}
|
|
}
|
|
if (!this->db->commitTransaction()) {
|
|
this->db->rollbackTransaction();
|
|
}
|
|
}
|
|
|
|
QString EntityManager::generateObjectName() {
|
|
int i = 0;
|
|
QString name = "em[";
|
|
while (true) {
|
|
if (!EntityManager::instances.contains(name + QString::number(i) + "]")) {
|
|
name += QString::number(i) + "]";
|
|
break;
|
|
}
|
|
}
|
|
return name;
|
|
}
|
|
|
|
void EntityManager::appendToInstanceList() {
|
|
this->setObjectName(this->generateObjectName());
|
|
EntityManager::instances.insert(this->objectName(), this);
|
|
}
|
|
|
|
QHash<QString, EntityManager *> EntityManager::getInstances() {
|
|
return instances;
|
|
}
|
|
|
|
EntityManager *EntityManager::getDefaultInstance() {
|
|
auto keys = EntityManager::instances.uniqueKeys();
|
|
if(!keys.isEmpty()) {
|
|
return EntityManager::instances.value(keys.first());
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
EntityManager *EntityManager::getInstance(QString name) {
|
|
if (EntityManager::instances.contains(name)) {
|
|
return EntityManager::instances.value(name);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
bool EntityManager::shouldBeSaved(QSharedPointer<Entity> &entity,
|
|
const Relation &r) {
|
|
return entity && (r.getCascadeType().contains(CascadeType::ALL)
|
|
|| (entity->getProperty(entity->getPrimaryKey()) > -1
|
|
&& r.getCascadeType().contains(CascadeType::MERGE))
|
|
|| (entity->getProperty(entity->getPrimaryKey()) <= -1
|
|
&& r.getCascadeType().contains(CascadeType::PERSIST)));
|
|
}
|
|
|
|
void EntityManager::removeRelations(const QSharedPointer<Entity> &entity) {
|
|
auto props = EntityHelper::getRelationProperties(entity.data());
|
|
for (auto i = props.constBegin(); i != props.constEnd(); ++i) {
|
|
const Relation r = i.key();
|
|
auto property = i.value();
|
|
auto var = property.read(entity.data());
|
|
if (r.getType() == RelationType::MANY_TO_MANY) {
|
|
this->removeManyToManyEntityList(entity, r, var);
|
|
} else if (r.getType() == RelationType::ONE_TO_MANY) {
|
|
if (r.getCascadeType().contains(CascadeType::REMOVE)
|
|
|| r.getCascadeType().contains(CascadeType::ALL)) {
|
|
this->removeEntityList(var);
|
|
} else {
|
|
this->setNullOneToManyRelation(var, r);
|
|
}
|
|
} else if (r.getType() == RelationType::MANY_TO_ONE
|
|
|| r.getType() == RelationType::ONE_TO_ONE) {
|
|
this->setNullEntityPropertyRelation(var, r);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void EntityManager::setNullOneToManyRelation(QVariant &var, const Relation &r) {
|
|
if (!r.getMappedBy().isEmpty() && !var.isNull()
|
|
&& var.canConvert<QVariantList>()) {
|
|
auto list = EntityInstanceFactory::castQVariantList(var);
|
|
if (!list.isEmpty()) {
|
|
auto metas = EntityHelper::getMetaProperties(list.at(0).data());
|
|
if (metas.contains(r.getMappedBy())) {
|
|
for (int var = 0; var < list.size(); ++var) {
|
|
auto entity = list.at(var);
|
|
EntityHelper::setProperty(entity, QSharedPointer<Entity>(),
|
|
metas.value(r.getMappedBy()));
|
|
this->save(entity);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void EntityManager::setNullEntityPropertyRelation(QVariant &var,
|
|
const Relation &r) {
|
|
if (r.getCascadeType().contains(CascadeType::REMOVE)
|
|
|| r.getCascadeType().contains(CascadeType::ALL)) {
|
|
this->removeEntity(var);
|
|
} else if (!r.getMappedBy().isEmpty() && var.data()) {
|
|
auto e = EntityInstanceFactory::castQVariant(var);
|
|
auto metas = EntityHelper::getMetaProperties(e.data());
|
|
if (metas.contains(r.getMappedBy())) {
|
|
EntityHelper::setProperty(e, QSharedPointer<Entity>(),
|
|
metas.value(r.getMappedBy()));
|
|
this->save(e);
|
|
}
|
|
}
|
|
}
|
|
|
|
void EntityManager::removeEntity(QVariant &var) {
|
|
if (var.data()) {
|
|
auto e = EntityInstanceFactory::castQVariant(var);
|
|
if(e) {
|
|
this->remove(e);
|
|
}
|
|
}
|
|
}
|
|
|
|
void EntityManager::removeEntityList(QVariant &var) {
|
|
if (var.canConvert<QVariantList>()) {
|
|
auto list = EntityInstanceFactory::castQVariantList(var);
|
|
for (int var = 0; var < list.size(); ++var) {
|
|
auto entity = list.at(var);
|
|
this->remove(entity);
|
|
}
|
|
}
|
|
}
|
|
|
|
void EntityManager::removeManyToManyEntityList(const QSharedPointer<Entity> &e,
|
|
const Relation &r,
|
|
QVariant &var) {
|
|
if (!var.isNull() && var.canConvert<QVariantList>()) {
|
|
auto list = EntityInstanceFactory::castQVariantList(var);
|
|
if (!list.isEmpty()) {
|
|
auto builder = this->schema->getQueryBuilder();
|
|
auto ptr = list.at(0);
|
|
QString tblName = builder->generateManyToManyTableName(e, ptr, r);
|
|
if (this->schema->getTables().contains(tblName)) {
|
|
QSqlQuery q = builder->manyToManyDelete(
|
|
tblName, builder->generateManyToManyColumnName(e, r.getPropertyName()),
|
|
e->getProperty(e->getPrimaryKey()).toLongLong());
|
|
if (this->db->exec(q)) {
|
|
bool refresh = r.getCascadeType().contains(CascadeType::REFRESH)
|
|
|| r.getCascadeType().contains(CascadeType::ALL);
|
|
bool remove = r.getCascadeType().contains(CascadeType::REMOVE)
|
|
|| 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<Entity *> &mergedObjects) {
|
|
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->saveObject(ptr, mergedObjects))
|
|
|| ptr->getProperty(ptr->getPrimaryKey()).toLongLong() > -1) {
|
|
saved.append(ptr);
|
|
}
|
|
}
|
|
return saved;
|
|
}
|
|
|
|
void EntityManager::persistManyToMany(const QSharedPointer<Entity> &entity,
|
|
const Relation &r, QVariant &property, QList<Entity *> &mergedObjects,
|
|
const bool ignoreHasChanged, const bool newItem) {
|
|
auto list = property.value<QList<QVariant>>();
|
|
auto ptr = QSharedPointer<Entity>(EntityInstanceFactory::createInstance(
|
|
EntityInstanceFactory::extractEntityType(QString(property.typeName()))));
|
|
auto builder = this->schema->getQueryBuilder();
|
|
QString tblName = builder->generateManyToManyTableName(entity, ptr, r);
|
|
if (this->schema->containsTable(tblName)) {
|
|
bool ok = newItem;
|
|
QSqlQuery q;
|
|
if (!newItem) {
|
|
/**
|
|
* @todo diff and remove entity from relational object when association is deleted
|
|
*/
|
|
q = builder->manyToManyDelete(
|
|
tblName, builder->generateManyToManyColumnName(entity, r.getPropertyName()),
|
|
entity->getProperty(entity->getPrimaryKey()).toLongLong());
|
|
ok = this->db->exec(q);
|
|
} else {
|
|
q = builder->getQuery();
|
|
}
|
|
if (ok && !list.isEmpty() && list.at(0).data()) {
|
|
auto nList = EntityInstanceFactory::castQVariantList(property);
|
|
this->persistMappedByRelation(nList, q, entity, ptr, r, tblName, mergedObjects);
|
|
}
|
|
} else {
|
|
this->missingManyToManyTable(tblName, entity, r);
|
|
}
|
|
}
|
|
|
|
void EntityManager::missingManyToManyTable(const QString &tblName,
|
|
const QSharedPointer<Entity> &e, const Relation &r) {
|
|
QString text = "MANY_TO_MANY Table " + tblName + " is missing.\n" +
|
|
"Entity " + EntityHelper::getClassName(e.data()) +
|
|
" is affected.\n" + "Relation of property: " + r.getPropertyName();
|
|
#ifdef QT_DEBUG
|
|
throw QString(text);
|
|
#else
|
|
this->logger->logMsg(text, MsgType::CRITICAL);
|
|
#endif
|
|
}
|
|
|
|
void EntityManager::manyToMany(const QSharedPointer<Entity> &entity,
|
|
Attribute *&attr) {
|
|
QSharedPointer<Entity> secEntityPtr = QSharedPointer<Entity>
|
|
(EntityInstanceFactory::createInstance(attr->getRelatedClass()->className()));
|
|
auto builder = this->schema->getQueryBuilder();
|
|
EntityHelper::clearEntityListProperty(entity, attr->getMetaProperty());
|
|
if (secEntityPtr) {
|
|
if (this->schema->getTables().contains(attr->getTableName())) {
|
|
QSqlQuery q = builder->manyToMany(attr->getConjunctedTable(),
|
|
attr->getColumnName(),
|
|
entity->getProperty(entity->getPrimaryKey()).toLongLong());
|
|
auto listMap = this->convertQueryResult(q);
|
|
auto secClassName = attr->getRelatedClass()->className();
|
|
QSharedPointer<Entity> e;
|
|
for (int var = 0; var < listMap.size(); ++var) {
|
|
auto id = listMap.at(var).value(attr->getRelatedColumnName());
|
|
if (!(this->cache.contains(id.toLongLong(), secClassName) &&
|
|
(e = this->cache.get(id.toLongLong(), secClassName)))) {
|
|
e = this->findById(id.toLongLong(), secClassName);
|
|
}
|
|
if (e) {
|
|
EntityHelper::addEntityToListProperty(entity, e, attr->getMetaProperty());
|
|
e = QSharedPointer<Entity>();
|
|
}
|
|
}
|
|
} else {
|
|
this->missingManyToManyTable(attr->getConjunctedTable(), entity, attr->getRelation());
|
|
}
|
|
}
|
|
}
|
|
|
|
QList<QSharedPointer<Entity>> EntityManager::findEntityByAttributes(
|
|
const QSharedPointer<Entity> &entity,
|
|
bool ignoreID, const bool resolveRelations) {
|
|
auto maps = this->findAllByAttributes(entity, ignoreID);
|
|
return this->convert(maps, EntityHelper::getClassname(entity.data()), resolveRelations);
|
|
}
|
|
|
|
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) {
|
|
Query query = this->schema->getQueryBuilder()->findByAttributes(
|
|
entity, ignoreID);
|
|
QSqlQuery q = this->queryInterpreter->build(query);
|
|
return this->convertQueryResult(q);
|
|
}
|
|
|
|
QList<QHash <QString, QVariant>> EntityManager::findAllByAttributes(
|
|
const QHash<QString, QVariant> &m, const QString &tblname, bool ignoreID) {
|
|
Query query = this->schema->getQueryBuilder()->findByAttributes(m,
|
|
tblname, ignoreID);
|
|
QSqlQuery q = this->queryInterpreter->build(query);
|
|
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) {
|
|
auto props = EntityHelper::getRelationProperties(entity.data());
|
|
for (auto iterator = props.constBegin(); iterator != props.constEnd(); ++iterator) {
|
|
const Relation r = iterator.key();
|
|
const QMetaProperty property = iterator.value();
|
|
auto attr = this->ar->resolveAttribute(entity->getClassname(), r.getPropertyName(),
|
|
EntityInstanceFactory::extractEntityType(property.typeName()));
|
|
QString colName = attr->getColumnName();
|
|
switch (r.getType()) {
|
|
case RelationType::MANY_TO_ONE:
|
|
if (map.contains(colName)) {
|
|
this->manyToOne(entity, map.value(colName), attr);
|
|
}
|
|
break;
|
|
case RelationType::MANY_TO_MANY:
|
|
this->manyToMany(entity, attr);
|
|
break;
|
|
case RelationType::ONE_TO_MANY:
|
|
this->oneToMany(entity, attr);
|
|
break;
|
|
case RelationType::ONE_TO_ONE:
|
|
this->oneToOne(entity, attr, map.value(colName));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
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::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);
|
|
}
|
|
|
|
bool EntityManager::createTable(QString className, bool createRelationTables) {
|
|
QSharedPointer<Entity> e = QSharedPointer<Entity>
|
|
(EntityInstanceFactory::createInstance(className));
|
|
return this->schema->getQueryBuilder()->createTable(e, createRelationTables);
|
|
}
|
|
|
|
bool EntityManager::removeTable(QString className) {
|
|
return this->executeQuery(this->schema->getQueryBuilder()->dropTable(className));
|
|
}
|
|
|
|
quint32 EntityManager::count(const QSharedPointer<Entity> &entity, bool ignoreID,
|
|
bool joinBaseClasses) {
|
|
Query q = Query();
|
|
auto qb = this->schema->getQueryBuilder();
|
|
QHash<QString, QVariant> values;
|
|
if (joinBaseClasses) {
|
|
q.appendJoins(qb->joinBaseClasses(entity));
|
|
values = EntityHelper::getEntityAttributes(EntityHelper::getMetaProperties(
|
|
entity.data()), entity);
|
|
} else {
|
|
values = EntityHelper::getEntityAttributes(
|
|
EntityHelper::getNonInheritedMetaProperties(entity.data()), entity);
|
|
}
|
|
//maybe filter MANY_TO_MANY and ONE_TO_MANY relations
|
|
q.appendFrom(entity->getTablename());
|
|
q.appendWhere(qb->where(values, qb->andKeyword(), ignoreID,
|
|
entity->getPrimaryKey(), false));
|
|
q.appendParams(values);
|
|
return this->count(q);
|
|
}
|
|
|
|
quint32 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;
|
|
}
|
|
|
|
quint32 EntityManager::count(Query &query) {
|
|
qint8 rc = 0;
|
|
query.appendSelect("COUNT(*)");
|
|
QSqlQuery q = this->queryInterpreter->build(query);
|
|
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 resolveRelations) {
|
|
auto ptr = QSharedPointer<Entity>(map.isEmpty() ? nullptr : EntityInstanceFactory::createInstance(
|
|
classname, map));
|
|
this->cache.insert(ptr);
|
|
if (resolveRelations) {
|
|
this->resolveRelations(ptr, map);
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
void EntityManager::convert(const QHash<QString, QVariant> &map,
|
|
QSharedPointer<Entity> &entity, const bool resolveRelations) {
|
|
this->cache.insert(entity);
|
|
auto data = entity.data();
|
|
EntityInstanceFactory::setAttributes(data, map);
|
|
if (resolveRelations) {
|
|
this->resolveRelations(entity, map);
|
|
}
|
|
}
|
|
|
|
QList<QSharedPointer<Entity>> EntityManager::convert(
|
|
QList<QHash<QString, QVariant>> maps,
|
|
const char *classname, const bool resolveRelations) {
|
|
auto list = QList<QSharedPointer<Entity>>();
|
|
for (int var = 0; var < maps.size(); ++var) {
|
|
auto ptr = this->convert(maps.at(var), classname, resolveRelations);
|
|
list.append(ptr);
|
|
}
|
|
return list;
|
|
}
|