Add Promotion Method to the Affiliates table in AffiliateWP

add-promotion-method-affiliatewp.php

<?php

/**
 * Add Promotion Method to AffiliateWP affiliates table columns
 *
 * @since December 3, 2020
 *
 * @param array                   $prepared_columns Prepared columns.
 * @param array                   $columns          The columns for this list table.
 * @param \AffWP_Affiliates_Table $this             List table instance.
 */
add_filter( 'affwp_affiliate_table_columns', function( $prepared_columns, $columns, $table ) {

	$prepared_columns['promotion_method'] = __( 'Promotion Method', 'affiliate-wp' );

	return $prepared_columns;

}, 10, 3 );

/**
 * Add Promotion Method value to the new table column
 *
 * @since December 3, 2020
 *
 * @param string           $value     The column data.
 * @param AffWP\Affiliate $affiliate The current affiliate object
 */
add_filter( 'affwp_affiliate_table_promotion_method', function( $value, $affiliate ) {

	$promotion_method = get_user_meta( $affiliate->user_id, 'affwp_promotion_method', true );

	return esc_html( $promotion_method );
}, 10, 2 );