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<?php

/* --------------------------------------------------------------
   DataTableColumnCollection.inc.php 2016-07-13
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2016 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/

/**
 * Class DataTableColumnCollection
 * 
 * @category   System
 * @package    Extensions
 * @subpackage Helpers
 */
class DataTableColumnCollection extends AbstractCollection
{
    /**
     * Find column definition by name. 
     * 
     * @param StringType $name The column slug name to be found. 
     *
     * @return DataTableColumn|null Returns the column instance of null if not found. 
     */
    public function findByName(StringType $name)
    {
        /** @var DataTableColumn $dataTableColumn */
        foreach($this->collectionContentArray as $dataTableColumn)
        {
            if($dataTableColumn->getName() === $name->asString())
            {
                return $dataTableColumn;
            }
        }
        
        return null; 
    }
    
    
    /**
     * Get valid type.
     *
     * This method must be implemented in the child-collection classes.
     *
     * @return string
     */
    protected function _getValidType()
    {
        return 'DataTableColumn';
    }
}