Banshee.Sources.DatabaseSource.NeedsReloadWhenFieldChanged C# (CSharp) Method

        protected virtual bool NeedsReloadWhenFieldChanged (Hyena.Query.QueryField field)
        {
            if (field == null)
                return true;

            // If it's the artist or album name, then we care, since it affects the browser
            // FIXME this should be based on what filters (aka browsers) are active.  InternetRadio,
            // for example, has only a Genre filter.
            if (field == Banshee.Query.BansheeQuery.ArtistField || field == Banshee.Query.BansheeQuery.AlbumField) {
                return true;
            }

            if (DatabaseTrackModel == null) {
                Log.Error ("DatabaseTrackModel should not be null in DatabaseSource.NeedsReloadWhenFieldChanged");
                return false;
            }

            // If it's the field we're sorting by, then yes, we care
            var sort_column = DatabaseTrackModel.SortColumn;
            if (sort_column != null && sort_column.Field == field) {
                return true;
            }

            // Make sure the query isn't dependent on this field
            QueryNode query = DatabaseTrackModel.Query;
            if (query != null) {
                if (query != last_query) {
                    query_fields = new List<QueryField> (query.GetFields ());
                    last_query = query;
                }

                if (query_fields.Contains (field))
                    return true;
            }

            return false;
        }