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(** Parse a text value into a date *)
open CalendarLib
let first_day = CalendarLib.Date.make 1899 12 30
let f : Sqlite3.Data.t -> Sqlite3.Data.t =
fun data ->
match data with
| Sqlite3.Data.INT content ->
let nb = Int64.to_int content in
let date = Date.add first_day (Date.Period.day nb) in
let year = CalendarLib.Date.year date in
Sqlite3.Data.INT (Int64.of_int year)
| _ -> data
let register : Sqlite3.db -> unit = fun db -> Sqlite3.create_fun1 db "year" f
|
