package shakuhachi

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A music collection manager

Install

dune-project
 Dependency

Authors

Maintainers

Sources

0.1.0.tar.gz
sha256=bb7f91cc44c09f922d2a614e9e01fd0d2976840bacf839a8b99de63c6fc5b3b8
sha512=f02827db4228b017bb2ad7d64cb1c0667831ec2341e6f759266ec834e40627c2affeace143c6d5e769b3acce63f889b3cbd1a9ca4768091840e8fce1d4750f86

doc/src/shakuhachi.database/database.ml.html

Source file database.ml

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(**********************************************************************************************)
(*                                                                                            *)
(* This file is part of shakuhachi: a music collection manager                                *)
(* Copyright (C) 2025 Yves Ndiaye                                                             *)
(*                                                                                            *)
(* shakuhachi is free software: you can redistribute it and/or modify it under the terms      *)
(* of the GNU General Public License as published by the Free Software Foundation,            *)
(* either version 3 of the License, or (at your option) any later version.                    *)
(*                                                                                            *)
(* shakuhachi is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;    *)
(* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR           *)
(* PURPOSE.  See the GNU General Public License for more details.                             *)
(* You should have received a copy of the GNU General Public License along with shakuhachi.   *)
(* If not, see <http://www.gnu.org/licenses/>.                                                *)
(*                                                                                            *)
(**********************************************************************************************)

type t = Sqlite3.db

let transaction database f =
  let _ = Sqlite3.exec database "BEGIN TRANSACTION;" in
  match f database with
  | Ok _ as r ->
      let _ = Sqlite3.exec database "COMMIT;" in
      r
  | Error _ as e ->
      let _ = Sqlite3.exec database "ROLLBACK;" in
      e

let open' ?mode ?uri ?memory ?mutex ?cache ?vfs path =
  let db = Sqlite3.db_open ?mode ?uri ?memory ?mutex ?cache ?vfs path in
  let statement = Sqlite3.prepare db "PRAGMA foreign_keys = ON;" in
  let _ = Sqlite3.step statement in
  let _ = Sqlite3.finalize statement in
  db

let create_tables db =
  let sql =
    Printf.sprintf "BEGIN TRANSACTION; %s %s %s %s %s %s %s %s COMMIT;"
      Album.sql_table Artist.sql_table Playlist.sql_table MusicFile.sql_table
      AlbumParticipant.sql_table MusicParticipant.sql_table
      MusicProperty.sql_table PlaylistMusics.sql_table
  in
  Sqlite3.exec db sql

let close db = Sqlite3.db_close db
let errmsg database = Sqlite3.errmsg database