bp_save_group_type_post_meta_box_data( $post_id )

function bp_save_group_type_post_meta_box_data( $post_id ) {
	global $wpdb, $error;

	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
		return;

	$post = get_post( $post_id );

	if ( $post->post_type !== bp_get_group_type_post_type() )
		return;

	if ( ! isset( $_POST[ '_bp-group-type-nonce' ] ) )
		return;

	//verify nonce
	if ( ! wp_verify_nonce( $_POST[ '_bp-group-type-nonce' ], 'bp-group-type-edit-group-type' ) )
		return;

	//Save data
	$data = isset( $_POST[ 'bp-group-type' ] ) ? $_POST[ 'bp-group-type' ] : array();

	if ( empty( $data ) )
		return;

	$error = false;

	$post_title = wp_kses( $_POST[ 'post_title' ], wp_kses_allowed_html( 'strip' ) );

	// key
	$key = get_post_field( 'post_name', $post_id );

	//for label
	$label_name = isset( $data[ 'label_name' ] ) ? wp_kses( $data[ 'label_name' ], wp_kses_allowed_html( 'strip' ) ) : $post_title;
	$singular_name = isset( $data[ 'label_singular_name' ] ) ? wp_kses( $data[ 'label_singular_name' ], wp_kses_allowed_html( 'strip' ) ) : $post_title;

	//Remove space
	$label_name     = trim( $label_name );
	$singular_name  = trim( $singular_name );

	$enable_filter = isset( $data[ 'enable_filter' ] ) ? absint( $data[ 'enable_filter' ] ) : 0; //default inactive
	$enable_remove = isset( $data[ 'enable_remove' ] ) ? absint( $data[ 'enable_remove' ] ) : 0; //default inactive

	$member_type = $_POST['bp-member-type'];
	$member_type_group_invites = $_POST['bp-member-type-group-invites'];
	$get_restrict_invites_same_group_types = isset( $_POST['bp-group-type-restrict-invites-user-same-group-type'] ) ? absint( $_POST['bp-group-type-restrict-invites-user-same-group-type'] ) : 0;

	$term = term_exists( sanitize_key( $key ), 'bp_group_type' );
	if ( 0 !== $term && null !== $term ) {
		$digits = 3;
		$unique = rand(pow(10, $digits-1), pow(10, $digits)-1);
		$key = $key.$unique;
	}

	$get_existing = get_post_meta( $post_id, '_bp_group_type_key', true );
	( '' === $get_existing ) ? update_post_meta( $post_id, '_bp_group_type_key', sanitize_key( $key ) ) : '';

	update_post_meta( $post_id, '_bp_group_type_label_name', $label_name );
	update_post_meta( $post_id, '_bp_group_type_label_singular_name', $singular_name );
	update_post_meta( $post_id, '_bp_group_type_enable_filter', $enable_filter );
	update_post_meta( $post_id, '_bp_group_type_enable_remove', $enable_remove );
	update_post_meta( $post_id, '_bp_group_type_enabled_member_type_join', $member_type );
	update_post_meta( $post_id, '_bp_group_type_enabled_member_type_group_invites', $member_type_group_invites );
	update_post_meta( $post_id, '_bp_group_type_restrict_invites_user_same_group_type', $get_restrict_invites_same_group_types );
}