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<?php
namespace Charcoal\Ui;
use InvalidArgumentException;
/**
* Provides an entity with a priority level or sorting index.
*
* Implementation of {@see \Charcoal\Ui\PrioritizableInterface}.
*/
trait PrioritizableTrait
{
* Priority level of the entity.
* @var integer
private $priority = 0;
* Set the entity's priority index.
* @param integer $priority An index, for sorting.
* @throws InvalidArgumentException If the priority is not an integer.
* @return self
public function setPriority($priority)
if (!is_numeric($priority)) {
throw new InvalidArgumentException(
'Priority must be an integer'
);
}
$this->priority = intval($priority);
return $this;
* Retrieve the entity's priority index.
* @return integer
public function priority()
return $this->priority;
locomotivemtl /
charcoal-ui
