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root/src/entity.cpp @ 5c3d9487

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/*
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* Copyright (C) 2015 Christian Ehringfeld <c.ehringfeld@t-online.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
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#include "entity.h"

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using namespace CuteEntityManager;
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Entity::Entity(QObject *parent) : QObject(parent) {
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this->id = -1;
}

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QString Entity::toString() const {
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QString r = "";
r.append(this->getClassname());
r.append(": {");
auto properties = this->getMetaProperties();
for (auto var = properties.constBegin(); var != properties.constEnd(); ++var) {
r.append(var.key() + ": " + var.value().read(this).toString() + ", ");
}
r.append("}");
return r;
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}

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Entity::~Entity() {
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}

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QString Entity::getTablename() const {
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return QString(this->metaObject()->className()).toLower();
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}
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const QHash<QString, Relation> Entity::getRelations() const {
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return QHash<QString, Relation>();
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}

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const QHash<QString, Relation> Entity::getNonInheritedRelations() const {
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auto relations = this->getRelations();
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auto superObject = EntityInstanceFactory::newSuperClassInstance(this);
if (superObject) {
auto superRelations = superObject->getRelations();
auto iterator = superRelations.constBegin();
while (iterator != relations.constEnd()) {
if (relations.contains(iterator.key())) {
relations.remove(iterator.key());
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}
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++iterator;
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}
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delete superObject;
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superObject = nullptr;
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}
return relations;
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}

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const QStringList Entity::getTransientAttributes() const {
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return QStringList();
}
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const QStringList Entity::getBLOBColumns() const {
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return QStringList();
}

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InheritanceStrategy Entity::getInheritanceStrategy() const {
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return JOINED_TABLE;
}

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bool Entity::isInheritanceCascaded() const {
return true;
}

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QString Entity::getPrimaryKey() const {
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return "id";
}
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const QList<const QMetaObject *> Entity::superClasses(bool
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stopAtSingleTableInheritance) const {
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QList<const QMetaObject *> classes = QList<const QMetaObject *>();
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auto superMetaObject = this->metaObject()->superClass();
if (this->getInheritanceStrategy() == JOINED_TABLE) {
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Entity *e = nullptr;
while (superMetaObject && QString(superMetaObject->className()) !=
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QString("CuteEntityManager::Entity")) {
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e = EntityInstanceFactory::createInstance(superMetaObject->className());
if (e) {
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classes.append(superMetaObject);
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superMetaObject = superMetaObject->superClass();
quint8 s = e->getInheritanceStrategy();
delete e;
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e = nullptr;
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if (stopAtSingleTableInheritance && s == PER_CLASS_TABLE) {
break;
}
} else {
break;
}
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}
}
return classes;
}

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const QHash<QString, QMetaProperty> Entity::getMetaProperties() const {
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return Entity::getMetaProperties(this->metaObject());
}

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const QHash<QString, QMetaProperty> Entity::getSuperMetaProperties() const {
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auto superMetaObjectPropertyMap = QHash<QString, QMetaProperty>();
auto superMeta = this->metaObject()->superClass();
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if (QString(superMeta->className()) != QString("CuteEntityManager::Entity")
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&& this->getInheritanceStrategy() == JOINED_TABLE) {
for (int var = 0; var < superMeta->propertyCount(); ++var) {
QMetaProperty prop = superMeta->property(var);
if (prop.isReadable() && prop.isWritable()) {
superMetaObjectPropertyMap.insert(QString(prop.name()), prop);
}
}
}
return superMetaObjectPropertyMap;
}

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const QHash<QString, QMetaProperty> Entity::getMetaProperties(
const QMetaObject *object) {
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auto h = QHash<QString, QMetaProperty>();
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for (int var = 0; var < object->propertyCount(); ++var) {
QMetaProperty m = object->property(var);
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if (m.isValid() && m.name() != QString("objectName")) {
h.insert(m.name(), m);
}
}
return h;
}

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const QHash<QString, QMetaProperty> Entity::getInheritedMetaProperties() const {
auto classes = this->superClasses();
auto wholeProperties = QHash<QString, QMetaProperty>();
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for (int var = classes.size() - 1; var >= 0; --var) {
auto metaObject = classes.at(var);
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auto properties = Entity::getMetaProperties(metaObject);
auto iterator = properties.constBegin();
while (iterator != properties.constEnd()) {
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wholeProperties.insert(iterator.key(), iterator.value());
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++iterator;
}
}
return wholeProperties;
}

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const QHash<Relation, QMetaProperty> Entity::getRelationProperties() const {
auto h = QHash<Relation, QMetaProperty>();
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auto relations = this->getRelations();
for (int var = 0; var < this->metaObject()->propertyCount(); ++var) {
QMetaProperty m = this->metaObject()->property(var);
if (m.isValid() && relations.contains(QString(m.name()))) {
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h.insert(relations.value(m.name()), m);
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}
}
return h;
}

const char *Entity::getClassname() const {
return this->metaObject()->className();
}

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QVariant Entity::getProperty(const QString &name) const {
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if (!name.isEmpty()) {
return QObject::property(name.toLatin1().constData());
}
return QVariant();
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}

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bool Entity::setProperty(const QString &name, const QVariant &value) {
return QObject::setProperty(name.toLatin1().constData(), value);
}

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qint64 Entity::getId() const {
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return id;
}

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void Entity::setId(const qint64 &value) {
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if (value != this->id) {
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id = value;
emit idChanged();
}
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}