Автоматически обновляться от QAbstractModel

Добрый день.
Наследовал QAbstractModel на с++ и использую ее в QML. Как автоматом обновлять данные в QML при изменении данных в QAbstractModel?
Попробовал с помощью void emitSignalUpdateModel();, но не получилось.

Q_PROPERTY для QML

Q_PROPERTY(ModelRegistration* modelRegistration MEMBER m_modelRegistration CONSTANT)

.h

#ifndef MODELREGISTRATION_H
#define MODELREGISTRATION_H
 
#include <QObject>
#include <QAbstractListModel>
 
struct RegistrationObject
{
    RegistrationObject(int id, QString name, bool isDone) {
        m_id = id;
        m_name = name;
        m_isDone = isDone;
    }
    int m_id;
    QString m_name;
    bool m_isDone;
};
 
class ModelRegistration : public QAbstractListModel
{
    Q_OBJECT
public:
    ModelRegistration(QObject *parent = nullptr);
 
    enum RoleNames {
        IdRole = Qt::UserRole,
        NameRole,
        IsDoneRole
    };
 
    QVector<RegistrationObject> vectorDataRegistration;
 
    int rowCount(const QModelIndex& parent = QModelIndex()) const override;
    QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
 
public slots:
    void emitSignalUpdateModel();
 
protected:
    QHash<int, QByteArray> roleNames() const override;
};
 
#endif // MODELREGISTRATION_H

.cpp

#include "modelregistration.h"
 
ModelRegistration::ModelRegistration(QObject *parent) : QAbstractListModel(parent)
{
    vectorDataRegistration.append(RegistrationObject(1, "Legs (back)", false));
    vectorDataRegistration.append(RegistrationObject(2, "Hips (back)", false));
    vectorDataRegistration.append(RegistrationObject(3, "Back", false));
    vectorDataRegistration.append(RegistrationObject(3, "Arms (back)", false));
    vectorDataRegistration.append(RegistrationObject(3, "Hips (front)", false));
    vectorDataRegistration.append(RegistrationObject(4, "Belly", false));
    vectorDataRegistration.append(RegistrationObject(3, "Arms (front)", false));
}
 
int ModelRegistration::rowCount(const QModelIndex &parent) const
{
    return vectorDataRegistration.count();
}
 
QVariant ModelRegistration::data(const QModelIndex &index, int role) const
{
    if (index.row() < 0 || index.row() >= vectorDataRegistration.count())
        return QVariant();
 
    switch (role)
    {
    case IdRole:
        return vectorDataRegistration[index.row()].m_id;
    case NameRole:
        return vectorDataRegistration[index.row()].m_name;
    case IsDoneRole:
        return vectorDataRegistration[index.row()].m_isDone;
    }
 
    return QVariant();
}
 
void ModelRegistration::emitSignalUpdateModel()
{
    auto index = this->index(0);
    emit dataChanged(index, index, QVector<int>{0,1,2});
}
 
QHash<int, QByteArray> ModelRegistration::roleNames() const
{
    QHash<int, QByteArray> roles;
    roles[IdRole] = "id";
    roles[NameRole] = "name";
    roles[IsDoneRole] = "isDone";
    return roles;
}