Add Tag And End Date To Funded Campaign

/**

 * Sometimes, it can be useful to do something special for campaigns that

 * have been fully funded.

 *

 * In this example, when a campaign receives a donation and is fully funded,

 * two things happen:

 *

 * 1. It gets given the "Funded" tag. This allows filtering by tag, for example

 *    using the [campaigns] shortcode.

 * 2. It has its end date set to 12AM today. This prevents any further donations

 *    to the campaign.

 */

add_action( 'charitable_post_insert_campaign_donation', function( $campaign_donation_id, $data ) {

	$campaign = charitable_get_campaign( $data['campaign_id'] );

	/* Skip campaigns that doesn't have a goal or has not reached its goal. */

	if ( ! $campaign->has_goal() || ! $campaign->has_achieved_goal() ) {

		return;

	}

	/* Do something for campaigns that have reached their goal. */

	/* Example 1: Add a "funded" tag. */

	wp_set_object_terms( $data['campaign_id'], 'funded', 'campaign_tag' );

	/* Example 2: Change the campaign end date to today. */

	update_post_meta( $data['campaign_id'], '_campaign_end_date', date( 'Y-m-d 00:00:00' ) );

}, 10, 2 );