type company struct {
Id          int
Name        string
}

comp.InitModel(newDbConnection(), &comp)

//m.caller = pointer to the ptr to comp (struct)
callerV := reflect.ValueOf(m.caller)
CallerField := callerV.Elem()
var values []interface{}
for _, e := range m.columns {
    values = append(values, CallerField.FieldByName(e.name).Addr().Interface())
}
err := r.Scan(values...)
if err != nil {
    return err
}

var companies []company
comp.InitModel(newDbConnection(), &comp)
comp.FindAll(&companies) //in this is the db query and scan
fmt.Println(companies) //here should be the result

func (m *Model) FindAll(test []interface{}, c *Condition) error {

//get the sql statement from the struct
stmt := PrepairStmt(m, c)

rows, err := m.db.Query(stmt.selectParse(), c.arguments...)
if err != nil {
    return err
}
defer rows.Close()

callerV := reflect.ValueOf(m.caller)
CallerField := callerV.Elem()
for rows.Next() {

    var values []interface{}
    for _, e := range m.columns {
        values = append(values, CallerField.FieldByName(e.name).Addr().Interface())
    }

    err = rows.Scan(values...)
    if err != nil {
        return err
    }

    valuePtr := reflect.New(reflect.TypeOf(test).Elem())
    test = reflect.Append(test,reflect.ValueOf(values))
}

return nil
}