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Diffstat (limited to 'plugins/jetpack/class.jetpack-affiliate.php')
-rw-r--r-- | plugins/jetpack/class.jetpack-affiliate.php | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/plugins/jetpack/class.jetpack-affiliate.php b/plugins/jetpack/class.jetpack-affiliate.php new file mode 100644 index 00000000..1bbf1d45 --- /dev/null +++ b/plugins/jetpack/class.jetpack-affiliate.php @@ -0,0 +1,78 @@ +<?php + +if ( ! defined( 'ABSPATH' ) ) { + // Exit if accessed directly + exit; +} + +/** + * This class introduces routines to get an affiliate code, that might be obtained from: + * - an `jetpack_affiliate_code` option in the WP database + * - an affiliate code returned by a filter bound to the `jetpack_affiliate_code` filter hook + * + * @since 6.9.0 + */ +class Jetpack_Affiliate { + + /** + * @since 6.9.0 + * @var Jetpack_Affiliate This class instance. + **/ + private static $instance = null; + + private function __construct() { + if ( Jetpack::is_development_mode() ) { + return; + } + } + + /** + * Initializes the class or returns the singleton + * + * @since 6.9.0 + * + * @return Jetpack_Affiliate | false + */ + public static function init() { + if ( is_null( self::$instance ) ) { + self::$instance = new Jetpack_Affiliate; + } + return self::$instance; + } + + /** + * Returns the affiliate code from database after filtering it. + * + * @since 6.9.0 + * + * @return string The affiliate code. + */ + public function get_affiliate_code() { + /** + * Allow to filter the affiliate code. + * + * @since 6.9.0 + * + * @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. + * + * @since 6.9.0 + * + * @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 ) { + if ( '' !== ( $aff = $this->get_affiliate_code() ) ) { + $url = add_query_arg( 'aff', $aff, $url ); + } + return $url; + } +} + +add_action( 'init', array( 'Jetpack_Affiliate', 'init' ) ); |