method display_item row item =
let sdate =
match item.item_pubdate with
None -> "" |
Some d -> Rss.string_of_date d
in
store#set ~row ~column: col_date (to_u8 sdate);
store#set ~row ~column: col_title (to_u8 (string_of_opt item.item_title));
store#set ~row ~column: col_author (to_u8 (string_of_opt item.item_author))