BP_REST_Group_Membership_Endpoint::update_item( WP_REST_Request $request )

	public function update_item( $request ) {
		$user         = bp_rest_get_user( $request['user_id'] );
		$group        = $this->groups_endpoint->get_group_object( $request['group_id'] );
		$action       = $request['action'];
		$role         = $request['role'];
		$group_id     = $group->id;
		$group_member = new BP_Groups_Member( $user->ID, $group_id );

		/**
		 * Fires before the promotion of a user to a new status.
		 *
		 * @param int    $group_id ID of the group being promoted in.
		 * @param int    $user_id  ID of the user being promoted.
		 * @param string $status   New status being promoted to.
		 */
		do_action( "groups_{$action}_member", $group_id, $user->ID, $role );

		if ( 'promote' === $action ) {
			if ( ! $group_member->promote( $role ) ) {
				return new WP_Error(
					'bp_rest_group_member_failed_to_promote',
					__( 'Could not promote member.', 'buddyboss' ),
					array(
						'status' => 500,
					)
				);
			}
		} elseif ( 'demote' === $action && 'member' !== $role ) {
			if ( ! $group_member->promote( $role ) ) {
				return new WP_Error(
					'bp_rest_group_member_failed_to_demote',
					__( 'Could not demote member.', 'buddyboss' ),
					array(
						'status' => 500,
					)
				);
			}
		} elseif ( in_array( $action, array( 'demote', 'ban', 'unban' ), true ) ) {
			if ( ! $group_member->$action() ) {
				$messages = array(
					'demote' => __( 'Could not demote member from the group.', 'buddyboss' ),
					'ban'    => __( 'Could not ban member from the group.', 'buddyboss' ),
					'unban'  => __( 'Could not unban member from the group.', 'buddyboss' ),
				);

				return new WP_Error(
					'bp_rest_group_member_failed_to_' . $action,
					$messages[ $action ],
					array(
						'status' => 500,
					)
				);
			}
		}

		$after_action = array(
			'promote' => 'promoted',
			'demote'  => 'demoted',
			'ban'     => 'banned',
			'unban'   => 'unbanned',
		);

		/**
		 * Fires after a group member has been updated.
		 *
		 * @param int $user_id  ID of the user being updated.
		 * @param int $group_id ID of the group.
		 */
		do_action( "groups_{$after_action[$action]}_member", $user->ID, $group_id );

		// Setting context.
		$request->set_param( 'context', 'edit' );

		$retval = $this->prepare_response_for_collection(
			$this->prepare_item_for_response( $group_member, $request )
		);

		$response = rest_ensure_response( $retval );

		/**
		 * Fires after a group member is updated via the REST API.
		 *
		 * @param WP_User $user The updated member.
		 * @param BP_Groups_Member $group_member The group member object.
		 * @param BP_Groups_Group $group The group object.
		 * @param WP_REST_Response $response The response data.
		 * @param WP_REST_Request $request The request sent to the API.
		 *
		 * @since 0.1.0
		 */
		do_action( 'bp_rest_group_members_update_item', $user, $group_member, $group, $response, $request );

		return $response;
	}