Jarves\Configuration\Field::getColumnName PHP Method

    public function getColumnName()
    {
        return Tools::camelcase2Underscore($this->getId());
    }

 /**
  * @param Field $field
  */
 public function addField(Field $field)
 {
     $field->setObjectDefinition($this);
     $this->fields[$field->getColumnName()] = $field;
 }