pellest/src/db.ml
2022-12-06 00:25:28 +01:00

52 lines
1.4 KiB
OCaml

open Caqti_request.Infix
let db_root = App.data_dir
let () =
match Bos.OS.Dir.create (Fpath.v db_root) with
| Ok true -> Dream.log "created %s" db_root
| Ok false -> Dream.log "%s already exists" db_root
| Error (`Msg _) ->
Dream.warning (fun log -> log "error when creating %s" db_root)
let db = Filename.concat db_root (App.App_id.application ^ ".db")
let db_uri = Format.sprintf "sqlite3://%s" db
module Db =
(val Caqti_blocking.connect (Uri.of_string db_uri) |> Caqti_blocking.or_fail)
let () =
let set_foreign_keys_on =
Caqti_type.(unit ->. unit) "PRAGMA foreign_keys = ON"
in
if Result.is_error (Db.exec set_foreign_keys_on ()) then
Dream.error (fun log -> log "can't set foreign_keys on")
let () =
let query =
Caqti_type.(unit ->. unit)
"CREATE TABLE IF NOT EXISTS dream_session (id TEXT PRIMARY KEY, label \
TEXT NOT NULL, expires_at REAL NOT NULL, payload TEXT NOT NULL)"
in
match Db.exec query () with
| Ok () -> ()
| Error _e ->
Format.eprintf "db error@\n";
exit 1
let unwrap_err = function
| Error e ->
Error
( `Internal_Server_Error
, Format.sprintf "db error: %s" (Caqti_error.show e) )
| Ok _ as ok -> ok
let exec q v = Db.exec q v |> unwrap_err
let find q v = Db.find q v |> unwrap_err
let find_opt q v = Db.find_opt q v |> unwrap_err
let collect_list q v = Db.collect_list q v |> unwrap_err