Ouzo\Model::_getFields PHP Method

    public function _getFields()
    {
        return $this->_modelDefinition->fields;
    }

 private function selectModelColumns(Model $metaInstance, $alias)
 {
     if ($this->_selectModel) {
         $prefix = $this->aliasPrefixForSelect($alias);
         $this->_query->selectColumns = $this->_query->selectColumns + ColumnAliasHandler::createSelectColumnsWithAliases($prefix, $metaInstance->_getFields(), $alias);
     }
 }