Query (p.shakuhachi.0.3.0.doc.shakuhachi.database.SkhcDb.Query)

Source

val musics : 
  ?rev:bool ->
  Database.t ->
  (MusicFile.t ->
    Album.t ->
    (string * Roles.t) Ids.Map.t ->
    SkhcMetadata.Metadata.Values.t SkhcMetadata.Metadata.Properties.t ->
    'a option) ->
  ('a list, Sqlite3.Rc.t * string) result

musics db f queries all musics inside db and applies f to every element, keeping all Some elements returned by f. If rev, elements are returned in the reversed order.

before 0.3.0,
no rev optional argument.

Source

val music : 
  Database.t ->
  int64 ->
  (MusicFile.t ->
    Album.t ->
    (string * Roles.t) Ids.Map.t ->
    SkhcMetadata.Metadata.Values.t SkhcMetadata.Metadata.Properties.t ->
    'a option) ->
  ('a option, Sqlite3.Rc.t * string) result

music db f queries the music with id inside db and applies f to it, keeping it if Some is returned by f.

since 0.3.0

Source

val albums : 
  ?rev:bool ->
  Database.t ->
  (Album.t -> Album.Stats.t -> (string * Roles.t) Ids.Map.t -> 'a option) ->
  ('a list, Sqlite3.Rc.t * string) result

albums db f queries all albums inside db and applies f to every element, keeping all Some elements returned by f. If rev, elements are returned in the reversed order.

before 0.3.0,
no rev optional argument.

Source

val album : 
  Database.t ->
  int64 ->
  (Album.t -> Album.Stats.t -> (string * Roles.t) Ids.Map.t -> 'a option) ->
  ('a option, Sqlite3.Rc.t * string) result

album db id f queries the album with id inside db and applies f to it, keeping it if Some is returned by f.

since 0.3.0

Source

val artists : 
  Database.t ->
  (Artist.t -> 'a option) ->
  ('a list, Sqlite3.Rc.t * string) result

artists db f queries all artists inside db and applies f to every element, keeping all Some elements returned by f.