<?php
/**
 * Piwik - Open source web analytics
 * 
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 * 
 * @category Piwik
 * @package Piwik
 */

/**
 * Add a new metadata column to the table.
 * 
 * This is used to add a column containing the logo width and height of the countries flag icons.
 * This value is fixed for all icons so we simply add the same value for all rows.
 *
 * @package Piwik
 * @subpackage Piwik_DataTable
 */
class Piwik_DataTable_Filter_AddConstantMetadata extends Piwik_DataTable_Filter
{
	/**
	 * Creates a new filter and sets all required parameters
	 *
	 * @param Piwik_DataTable  $table
	 * @param string           $metadataName
	 * @param mixed            $metadataValue
	 */
	public function __construct( $table, $metadataName, $metadataValue )
	{
		parent::__construct($table);
		$this->name = $metadataName;
		$this->value = $metadataValue;
	}

	/**
	 * Filters the given data table
	 *
	 * @param Piwik_DataTable  $table
	 */
	public function filter($table)
	{
		foreach($table->getRows() as $row)
		{
			$row->addMetadata($this->name, $this->value);
		}
	}
}
