bool UserModel::insertUser( QString channelId, QSharedPointer<RocketChatUser> user )
{
    auto values =  userMap.values( channelId );
    int index = values.count();
    auto qIndex = QModelIndex();
    if ( channelId == current ) {
        beginInsertRows( qIndex, index, index );
    }

    userMap.insert( channelId, user );

    if ( channelId == current ) {
        endInsertRows();
    }
}


    class UserModel: public QAbstractListModel
{
        Q_OBJECT
    Q_PROPERTY(QString currentChannel READ getCurrent WRITE setCurrent NOTIFY currentChannelChanged)
    enum UserRoles {
          UserName = Qt::UserRole + 1,
          UserId
      };
    public:
        UserModel( QObject *parent = 0 );
        int rowCount( const QModelIndex &parent = QModelIndex() ) const;
        QVariant data( const QModelIndex &index, int role = Qt::DisplayRole ) const;
        bool insertUser(QString,QSharedPointer<RocketChatUser>);
        QString getCurrent() const;
        void setCurrent(const QString &value);
        void onCurrentChannelChanged(const QString &newText);

protected:
        QHash<int, QByteArray> roleNames() const;
        QSet<QString> duplicateCheck;
        QMultiMap<QString, QSharedPointer<RocketChatUser>> userMap;
        QString current;
signals:
        void currentChannelChanged(const QString &newText);
};

UserModel userModel;
context->setContextProperty("userModel",&userModel);

Drawer {
z: 9
width: Math.min(window.width, window.height) / 3 * 2
height: window.height
edge: Qt.LeftEdge
ListView {

    anchors.fill: parent
    spacing: 1
    header: ToolBar {
        Text {
            text: qsTr("Users in channel")
            anchors.centerIn: parent
        }
        width: parent.width - 1
    }
    id: userListView
    model: userModel
    delegate: RowLayout {
        width: parent.width
        Button {
            anchors.fill: parent
            text: model.username
        }
        /*BusyIndicator{
                    id: loadingUserIndicator
                                anchors.centerIn: parent
                                        }*/
    }
    Component.onCompleted: {
        userModel.currentChannel = channelView.currentChannel
    }
}