Add Campaign Creator Export Fields

/**

 * Add additional campaign fields related to the campaign creator.

 *

 * @param  array $columns The list of columns.

 * @return array

 */

function ed_charitable_add_creator_campaign_fields() {

	$creator_fields = array(

		'organization' => __( 'Campaign Creator Organization', 'your-namespace' ),

		'address'      => __( 'Campaign Creator Address', 'your-namespace' ),

		'address_2'    => __( 'Campaign Creator Address 2', 'your-namespace' ),

		'city'         => __( 'Campaign Creator City', 'your-namespace' ),

		'state'        => __( 'Campaign Creator State', 'your-namespace' ),

		'postcode'     => __( 'Campaign Creator Postcode', 'your-namespace' ),

		'country'      => __( 'Campaign Creator Country', 'your-namespace' ),

		'phone'        => __( 'Campaign Creator Phone', 'your-namespace' ),

	);

	foreach ( $creator_fields as $field => $label ) {

		$field = new Charitable_Campaign_Field( 'campaign_creator_' . $field, array(

			'label'          => $label,

			'admin_form'     => false,

			'show_in_export' => true,

			'email_tag'      => false,

			'value_callback' => 'ed_charitable_get_campaign_creator_field',

		) );

		charitable()->campaign_fields()->register_field( $field );

	}

}

add_action( 'init', 'ed_charitable_add_creator_campaign_fields' );

/**

 * Get a particular user field for a campaign's creator.

 *

 * @since  1.6.5

 *

 * @param  Charitable_Campaign $campaign The campaign object.

 * @param  string              $key      The meta key.

 * @return string

 */

function ed_charitable_get_campaign_creator_field( Charitable_Campaign $campaign, $key ) {

	if ( function_exists( 'charitable_get_campaign_creator_field' ) ) {

		return charitable_get_campaign_creator_field( $campaign, $key );

	}

	$creator = charitable_get_user( $campaign->get_campaign_creator() );

	$key     = str_replace( 'campaign_creator_', '', $key );

	return $creator->get( $key );

}