Add Donation Form Shortcode

/**

 * Display a specific campaign's donation form using a shortcode.

 *

 * After adding this code snippet, you can include any donation form with the following shortcode:

 *

 * [charitable_donation_form campaign=123] // Replace 123 with the ID of your campaign.

 */

function ed_charitable_donation_form_shortcode( $args ) {

    if ( ! array_key_exists( 'campaign', $args ) ) {

        return '';

    }

    if ( Charitable::CAMPAIGN_POST_TYPE !== get_post_type( $args['campaign'] ) ) {

        return '';

    }

    ob_start();

    if ( ! wp_script_is( 'charitable-script', 'enqueued' ) ) {

        Charitable_Public::get_instance()->enqueue_donation_form_scripts();

    }

    $form = charitable_get_campaign( $args['campaign'] )->get_donation_form();

    do_action( 'charitable_donation_form_before', $form );

    $form->render();

    do_action( 'charitable_donation_form_after', $form );

    return ob_get_clean();

}

add_shortcode( 'charitable_donation_form', 'ed_charitable_donation_form_shortcode' );