eventespresso / event-espresso-core

	 * This retrieves the associated template pack with this message.

	 * @return EE_Messages_Template_Pack | null

	 */

	public function get_template_pack() {

		/**

		 * This is deprecated functionality that will be removed eventually but included here now for backward compat.

		 */

		if ( ! empty( $this->template_pack ) ) {

			return $this->template_pack;

		}

		/** @type EE_Message_Template_Group $grp */

		$grp = $this->get_first_related( 'Message_Template_Group' );

		//if no group then let's try to get the first related group by internal messenger and message type (will use global grp).

		if ( ! $grp instanceof EE_Message_Template_Group ) {

			$grp = EEM_Message_Template_Group::instance()->get_one(

				array(

					array(

						'MTP_messenger'    => $this->messenger(),

						'MTP_message_type' => $this->message_type(),

						'MTP_is_global'    => true

					)

				)

			);

		}

		return $grp instanceof EE_Message_Template_Group ? $grp->get_template_pack() : null;

	 * Retrieves the variation used for generating this message.

	 * @return string

	 */

	public function get_template_pack_variation() {

		/**

		 * This is deprecated functionality that will be removed eventually but included here now for backward compat.

		 */

		if ( ! empty( $this->template_variation ) ) {

			return $this->template_variation;

		}

		/** @type EE_Message_Template_Group $grp */

		$grp = $this->get_first_related( 'Message_Template_Group' );

		//if no group then let's try to get the first related group by internal messenger and message type (will use global grp).

		if ( ! $grp instanceof EE_Message_Template_Group ) {

			$grp = EEM_Message_Template_Group::instance()->get_one(

				array(

					array(

						'MTP_messenger'    => $this->messenger(),

						'MTP_message_type' => $this->message_type(),

						'MTP_is_global'    => true

					)

				)

			);

		}

		return $grp instanceof EE_Message_Template_Group ? $grp->get_template_pack_variation() : '';