Revision 706de2e8
Von Christian Ehringfeld vor fast 9 Jahren hinzugefügt
| src/querybuilder.cpp | ||
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if (r.getType() == MANY_TO_MANY && r.getMappedBy().isEmpty()) {
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QHash<QString, QString> h = QHash<QString, QString>();
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h.insert("id", this->schema.data()->TYPE_BIGPK);
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h.insert(QString(entity.data()->metaObject()->className()) + QString("_id"), this->schema.data()->TYPE_BIGINT);
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h.insert(this->generateManyToManyColumnName(entity), this->schema.data()->TYPE_BIGINT);
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auto m = props.value(r.getPropertyName());
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Entity *e = EntityInstanceFactory::createInstance(m.type());
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QSharedPointer<Entity> ptr = QSharedPointer<Entity>(e);
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h.insert(QString(ptr.data()->metaObject()->className()) + QString("_id"),
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h.insert(this->generateManyToManyColumnName(ptr),
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this->schema.data()->TYPE_BIGINT);
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if (r.getTableName().isEmpty()) {
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relations.insert(this->generateManyToManyTableName(entity, ptr), h);
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| ... | ... | |
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return q;
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}
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QSqlQuery QueryBuilder::oneToMany(const QString &tableName, const QString &attribute, const qint64 &id) {
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QHash<QString, QVariant> values = QHash<QString, QVariant>();
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values.insert(attribute, id);
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return this->findByAttributes(values, tableName, false);
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}
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QSqlQuery QueryBuilder::manyToMany(const QString &tableName, const QString &attribute, const qint64 &id,
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const QString &foreignKey, const QString &foreignTable) {
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QSqlQuery q = this->database.data()->getQuery();
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QString sql = "SELECT " + this->schema.data()->quoteTableName(foreignTable) + ".* FROM " +
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this->schema.data()->quoteTableName(tableName) + this->leftJoin(foreignTable, tableName,
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foreignKey) + " WHERE " + this->schema.data()->quoteColumnName(attribute) + "=:id;";
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q.prepare(sql);
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q.bindValue(":id", id);
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//SELECT user.* FROM `parent_child` LEFT JOIN user ON user.id=parent_child.user_id WHERE child_id = 1
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return q;
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}
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QString QueryBuilder::leftJoin(const QString &joinableTable, const QString &tableName, const QString &foreignKey) {
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return "LEFT JOIN " + this->schema.data()->quoteTableName(joinableTable) + " ON " +
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this->schema.data()->quoteColumnName(joinableTable + ".id") + "=" + this->schema.data()->quoteColumnName(
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tableName + "." + foreignKey);
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}
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QString QueryBuilder::limit(const qint8 limit, const qint64 offset) const {
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return " LIMIT " + QString(limit) + (offset > 0 ? QString("," + offset) : "");
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}
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QString QueryBuilder::generateManyToManyColumnName(const QSharedPointer<Entity> &entity) const {
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return QString(entity.data()->metaObject()->className()) + QString("_id");
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}
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QSqlQuery QueryBuilder::getQuery() const {
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return this->database.data()->getQuery();
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}
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Auch abrufbar als: Unified diff
some relation stuff