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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik\Plugins\CoreVisualizations\Visualizations\JqplotGraph;
use Piwik\Plugins\CoreVisualizations\JqplotDataGenerator;
use Piwik\Plugins\CoreVisualizations\Visualizations\JqplotGraph;
/**
* Visualization that renders HTML for a Pie graph using jqPlot.
*/
class Pie extends JqplotGraph
{
public const ID = 'graphPie';
public const FOOTER_ICON = 'icon-chart-pie';
public const FOOTER_ICON_TITLE = 'General_Piechart';
public static function getDefaultConfig()
{
$config = new Config();
$config->max_graph_elements = 6;
$config->allow_multi_select_series_picker = false;
return $config;
}
public function beforeRender()
{
parent::beforeRender();
$this->checkRequestIsNotForMultiplePeriods();
$this->config->show_all_ticks = true;
$this->config->datatable_js_type = 'JqplotPieGraphDataTable';
}
protected function ensureValidColumnsToDisplay()
{
parent::ensureValidColumnsToDisplay();
$columnsToDisplay = $this->config->columns_to_display;
// Ensure only one column_to_display - it is a pie graph after all!
$metricColumn = reset($columnsToDisplay);
// Set to a sensible default if no suitable value was found
$this->config->columns_to_display = array($metricColumn ? : 'nb_visits');
}
protected function makeDataGenerator($properties)
{
return JqplotDataGenerator::factory('pie', $properties, $this);
}
}
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