| Path : /var/www/html/ob-wp-eski/core/Plugin/ |
|
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| Current File : /var/www/html/ob-wp-eski/core/Plugin/ProcessedMetric.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\Plugin;
use Piwik\DataTable;
use Piwik\DataTable\Row;
/**
* Base type for processed metrics. A processed metric is a metric that is computed using
* one or more other metrics.
*
* @api
*/
abstract class ProcessedMetric extends Metric
{
/**
* The sub-namespace name in a plugin where ProcessedMetrics are stored.
*/
const COMPONENT_SUBNAMESPACE = 'Columns\\Metrics';
/**
* Computes the metric using the values in a {@link Piwik\DataTable\Row}.
*
* The computed value should be numerical and not formatted in any way. For example, for
* a percent value, `0.14` should be returned instead of `"14%"`.
*
* @return mixed
*/
abstract public function compute(Row $row);
/**
* Returns the array of metrics that are necessary for computing this metric. The elements
* of the array are metric names.
*
* @return string[]
*/
abstract public function getDependentMetrics();
/**
* Returns the array of metrics that are necessary for computing this metric, but should not
* be displayed to the user unless explicitly requested. These metrics are intermediate
* metrics that are not really valuable to the user. On a request, if showColumns or hideColumns
* is not used, they will be removed automatically.
*
* @return string[]
*/
public function getTemporaryMetrics()
{
return array();
}
/**
* Executed before computing all processed metrics for a report. Implementers can return `false`
* to skip computing this metric.
*
* @param Report $report
* @param DataTable $table
* @return bool Return `true` to compute the metric for the table, `false` to skip computing
* this metric.
*/
public function beforeCompute($report, DataTable $table)
{
return true;
}
}