www.gusucode.com > Piwik 网站流量统计系统 v2.9.1PHP源码程序 > Piwik 网站流量统计系统 v2.9.1/piwik/piwik/core/DataTable/Filter/ColumnCallbackAddMetadata.php
<?php /** * Piwik - free/libre analytics platform * * @link http://piwik.org * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later * */ namespace Piwik\DataTable\Filter; use Piwik\DataTable; use Piwik\DataTable\BaseFilter; /** * Executes a callback for each row of a {@link DataTable} and adds the result as a new * row metadata value. * * **Basic usage example** * * $dataTable->filter('ColumnCallbackAddMetadata', array('label', 'logo', 'Piwik\Plugins\MyPlugin\getLogoFromLabel')); * * @api */ class ColumnCallbackAddMetadata extends BaseFilter { private $columnsToRead; private $functionToApply; private $functionParameters; private $metadataToAdd; private $applyToSummaryRow; /** * Constructor. * * @param DataTable $table The DataTable instance that will be filtered. * @param string|array $columnsToRead The columns to read from each row and pass on to the callback. * @param string $metadataToAdd The name of the metadata field that will be added to each row. * @param callable $functionToApply The callback to apply for each row. * @param array $functionParameters deprecated - use an [anonymous function](http://php.net/manual/en/functions.anonymous.php) * instead. * @param bool $applyToSummaryRow Whether the callback should be applied to the summary row or not. */ public function __construct($table, $columnsToRead, $metadataToAdd, $functionToApply = null, $functionParameters = null, $applyToSummaryRow = true) { parent::__construct($table); if (!is_array($columnsToRead)) { $columnsToRead = array($columnsToRead); } $this->columnsToRead = $columnsToRead; $this->functionToApply = $functionToApply; $this->functionParameters = $functionParameters; $this->metadataToAdd = $metadataToAdd; $this->applyToSummaryRow = $applyToSummaryRow; } /** * See {@link ColumnCallbackAddMetadata}. * * @param DataTable $table */ public function filter($table) { foreach ($table->getRows() as $key => $row) { if (!$this->applyToSummaryRow && $key == DataTable::ID_SUMMARY_ROW) { continue; } $parameters = array(); foreach ($this->columnsToRead as $columnsToRead) { $parameters[] = $row->getColumn($columnsToRead); } if (!is_null($this->functionParameters)) { $parameters = array_merge($parameters, $this->functionParameters); } if (!is_null($this->functionToApply)) { $newValue = call_user_func_array($this->functionToApply, $parameters); } else { $newValue = $parameters[0]; } if ($newValue !== false) { $row->addMetadata($this->metadataToAdd, $newValue); } } } }