Automattic\Jetpack\Partners\Affiliate

Complexity

Total Complexity

5

Size/Duplication

Total Lines	50
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	init()	0	6	2
A	get_affiliate_code()	0	8	1
A	add_code_as_query_arg()	0	7	2

<?php
/**
 * Class to handle affiliate codes.
 *
 * @package affiliate
 */

namespace Automattic\Jetpack\Partners;

/**
 * This class introduces routines to get an affiliate code, that might be obtained from:
 * - a `jetpack_affiliate_code` option in the WP database
 * - an affiliate code returned by a filter bound to the `jetpack_affiliate_code` filter hook
 */
class Affiliate {

	/**
	 * Class instance
	 *
	 * @var Affiliate This class instance.
	 **/
	private static $instance = null;

	/**
	 * Initializes the class or returns the singleton
	 *
	 * @return Affiliate | false
	 */
	public static function init() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new Affiliate();
		}
		return self::$instance;
	}

	/**
	 * Returns the affiliate code from database after filtering it.
	 *
	 * @return string The affiliate code.
	 */
	public function get_affiliate_code() {
		/**
		 * Allow to filter the affiliate code.
		 *
		 * @param string $aff_code The affiliate code, blank by default.
		 */
		return apply_filters( 'jetpack_affiliate_code', get_option( 'jetpack_affiliate_code', '' ) );
	}

	/**
	 * Returns the passed URL with the affiliate code added as a URL query arg.
	 *
	 * @param string $url The URL where the code will be added.
	 *
	 * @return string The passed URL with the code added.
	 */
	public function add_code_as_query_arg( $url ) {
		$aff = $this->get_affiliate_code();
		if ( '' !== $aff ) {
			$url = add_query_arg( 'aff', $aff, $url );
		}
		return $url;
	}
}