-include_lib("stdlib/include/qlc.hrl").
-import(lists, [reverse/1, any/2, map/2, sublist/3, filter/2]).
--import(euphorik_minichat, [resultat_transaction/1]).
+-import(euphorik_bd, [resultat_transaction/1]).
-import(qlc, [e/1, q/1, keysort/3]).
-import(mnesia, [table/1, transaction/1]).
% @spec conversations([{integer(), integer(), integer()}], integer(), integer(), integer()) -> [Conversation()]
conversations(Racines, N, D, P) ->
% écoute des nouveaux messages
- case subscribe(minichat, 2) of
- erreur = E ->
+ case mnesia:subscribe({table, minichat, simple}) of
+ {error, E} = E ->
E;
_ ->
% demande des conversations
Conversations = conversations_detailees(Racines, N, D, P),
- %io:format("Conversations : ~p~n", [Conversations]),
% si les conversations sont vides alors on attend un nouveau message
Vide = not any(
fun(C) ->
Conversations_mises_en_forme = mise_en_forme_conversations(
if Vide ->
attend_nouveau_message(),
- %io:format("Racines = ~p, N = ~p, D = ~p, P = ~p~n", [Racines, N, D, P]),
- %io:format("Conversations = ~p~n", [conversations_detailees(Racines, N, D, P)]),
conversations_detailees(Racines, N, D, P);
true ->
Conversations
end
),
- %io:format("Conversations_mises_en_forme = ~p~n", [Conversations_mises_en_forme]),
- unsubscribe(minichat),
+ mnesia:unsubscribe({table, minichat, simple}),
Conversations_mises_en_forme
end.
% Ecoute les événements de modification d'une table.
% @spec subscribe(atom(), integer()) -> ok | erreur
-subscribe(_Table, 0) ->
- erreur;
-subscribe(Table, C) ->
- case mnesia:subscribe({table, Table, simple}) of
- {error, {not_active_local, Table}} ->
- mnesia:add_table_copy(minichat, node(), ram_copies),
- subscribe(Table, C - 1);
- {error, _}->
- erreur;
- _ ->
- ok
- end.
+% Obsolète
+%~ subscribe(_Table, 0) ->
+ %~ erreur;
+%~ subscribe(Table, C) ->
+ %~ case mnesia:subscribe({table, Table, simple}) of
+ %~ {error, {not_active_local, Table}} ->
+ %~ mnesia:add_table_copy(minichat, node(), ram_copies),
+ %~ subscribe(Table, C - 1);
+ %~ {error, _}->
+ %~ erreur;
+ %~ _ ->
+ %~ ok
+ %~ end.
% Arrête d'écouter les modifications d'une table.
% @spec unsubscribe(atom()) -> term()
-unsubscribe(Table) ->
- mnesia:unsubscribe({table, Table, simple}).
+% Obsolète
+%~ unsubscribe(Table) ->
+ %~ mnesia:unsubscribe({table, Table, simple}).
% Attend qu'un nouveau message arrive, function bloquante.
mise_en_forme_conversation(Messages) ->
lists:foldr(
fun(Id, Acc) ->
- case euphorik_minichat:message_by_id(Id) of
+ case euphorik_bd:message_by_id(Id) of
{ok, Message} ->
[{Message, parents(Id)} | Acc];
_ ->