% trolls :
trolls/0,
trolls/1,
+ trolls_attente/1,
put_troll/2,
mod_troll/2,
del_troll/1,
troll_by_id/1,
+ current_troll/0,
+ elire_troll/0,
% versions :
update_version/1,
% utiles :
resultat_transaction/1\r
-]).\r
+]).
+
+-import(qlc, [e/1, e/2, q/1, cursor/1]).\r
\r
-include("../include/euphorik_bd.hrl").
-include("../include/euphorik_defines.hrl").\r
% Renvoie tous les users.
users() ->
resultat_transaction(mnesia:transaction(fun() ->
- qlc:e(qlc:q([E || E <- mnesia:table(user)]))
+ e(q([E || E <- mnesia:table(user)]))
end)).
user_by_cookie(Cookie) ->
resultat_transaction(mnesia:transaction(
fun() ->
- case qlc:e(qlc:q([E || E <- mnesia:table(user), E#user.cookie =:= Cookie])) of
+ case e(q([E || E <- mnesia:table(user), E#user.cookie =:= Cookie])) of
[User] -> {ok, User};
_ -> erreur
end
user_by_id(ID) ->
resultat_transaction(mnesia:transaction(
fun() ->
- case qlc:e(qlc:q([E || E <- mnesia:table(user), E#user.id =:= ID])) of
+ case e(q([E || E <- mnesia:table(user), E#user.id =:= ID])) of
[User] -> {ok, User};
_ -> erreur
end
user_by_login(Login) ->\r
resultat_transaction(mnesia:transaction(\r
fun() ->\r
- Users = qlc:e(qlc:q([E || E <- mnesia:table(user), E#user.login =:= Login])),\r
+ Users = e(q([E || E <- mnesia:table(user), E#user.login =:= Login])),\r
case Users of\r
[User] -> {ok, User};\r
_ -> erreur\r
toggle_ek_master(User_id) ->
resultat_transaction(mnesia:transaction(
fun() ->
- Users = qlc:e(qlc:q([E || E <- mnesia:table(user), E#user.id =:= User_id])),
+ Users = e(q([E || E <- mnesia:table(user), E#user.id =:= User_id])),
case Users of
[User] ->
mnesia:write(User#user{ek_master = not User#user.ek_master});
user_by_login_password(Login, Password) ->
resultat_transaction(mnesia:transaction(
fun() ->
- case qlc:e(qlc:q([E || E <- mnesia:table(user), E#user.login =:= Login, E#user.password =:= Password])) of
+ case e(q([E || E <- mnesia:table(user), E#user.login =:= Login, E#user.password =:= Password])) of
[User | _] -> {ok, User};
_ -> erreur
end
user_by_mess(Id) ->
resultat_transaction(mnesia:transaction(
fun() ->
- case qlc:e(qlc:q([U || U <- mnesia:table(user), M <- mnesia:table(minichat), M#minichat.id =:= Id, M#minichat.auteur_id =:= U#user.id])) of
+ case e(q([U || U <- mnesia:table(user), M <- mnesia:table(minichat), M#minichat.id =:= Id, M#minichat.auteur_id =:= U#user.id])) of
[User | _] -> {ok, User};
_ -> erreur
end
nouveau_message(Mess, Auteur_id, Repond_A) ->
% regarde si les id 'Repond_A' existent
F = fun() ->
- Nb_id_trouve = length(qlc:e(qlc:q([E#minichat.id || E <- mnesia:table(minichat), lists:member(E#minichat.id, Repond_A)]))),
+ Nb_id_trouve = length(e(q([E#minichat.id || E <- mnesia:table(minichat), lists:member(E#minichat.id, Repond_A)]))),
% est-ce que l'auteur existe ?
- Auteur = case qlc:e(qlc:q([E || E <- mnesia:table(user), E#user.id =:= Auteur_id])) of
+ Auteur = case e(q([E || E <- mnesia:table(user), E#user.id =:= Auteur_id])) of
[A] -> A;
_ -> throw("L'auteur du message est introuvable")
end,
% Renvoie N messages se trouvant sur la page P
messages(N, P) ->
F = fun() ->
- C = qlc:cursor(qlc:q([E || E <- qlc:keysort(2, mnesia:table(minichat), [{order, descending}])])),
+ C = cursor(q([E || E <- qlc:keysort(2, mnesia:table(minichat), [{order, descending}])])),
if P > 1 -> qlc:next_answers(C, N * (P - 1));
true -> ok
end,
message_by_id(Id) ->
case resultat_transaction(mnesia:transaction(
fun() ->
- qlc:e(qlc:q([E || E <- qlc:keysort(2, mnesia:table(minichat), [{order, ascending}]), Id =:= E#minichat.id]))
+ e(q([E || E <- qlc:keysort(2, mnesia:table(minichat), [{order, ascending}]), Id =:= E#minichat.id]))
end
)) of
[M] -> {ok, M};
resultat_transaction(mnesia:transaction(
fun() ->
% TODO : optimisations ? serait-ce du O(n) ?
- Query = qlc:q([E || E <- qlc:keysort(2, mnesia:table(minichat), [{order, ascending}]), lists:any(fun(Id) -> Id =:= E#minichat.id end, Ids)]),
- qlc:e(Query)
+ Query = q([E || E <- qlc:keysort(2, mnesia:table(minichat), [{order, ascending}]), lists:any(fun(Id) -> Id =:= E#minichat.id end, Ids)]),
+ e(Query)
end
)).
% TODO : ya pas plus simple ?
message_existe(Id) ->
resultat_transaction(mnesia:transaction(fun() ->
- length(qlc:e(qlc:q([E#minichat.id || E <- mnesia:table(minichat), E#minichat.id =:= Id]))) =:= 1
+ length(e(q([E#minichat.id || E <- mnesia:table(minichat), E#minichat.id =:= Id]))) =:= 1
end)).
% Renvoie les reponses (utilisé normalement uniquement pendant le debug).
reponses() ->
F = fun() ->
- qlc:e(qlc:q([E || E <- mnesia:table(reponse_minichat)]))
+ e(q([E || E <- mnesia:table(reponse_minichat)]))
end,
resultat_transaction(mnesia:transaction(F)).
repond_a(M_id) ->
resultat_transaction(mnesia:transaction(
fun() ->
- qlc:e(qlc:q(
+ e(q(
[M || E <- mnesia:table(reponse_minichat),
M <- mnesia:table(minichat),
E#reponse_minichat.repondant =:= M_id,
est_une_reponse_a_user(Id_user, Id_mess) ->
case mnesia:transaction(
fun() ->
- qlc:e(qlc:q([
+ e(q([
M#minichat.auteur_id || M <- mnesia:table(minichat), R <- mnesia:table(reponse_minichat),
M#minichat.auteur_id =:= Id_user, M#minichat.id =:= R#reponse_minichat.cible, R#reponse_minichat.repondant =:= Id_mess
]), [{unique_all, true}])
a_repondu_a_message(Id_user, Id_mess) ->
case mnesia:transaction(
fun() ->
- qlc:e(qlc:q([
+ e(q([
M#minichat.auteur_id || M <- mnesia:table(minichat), R <- mnesia:table(reponse_minichat),
R#reponse_minichat.cible =:= Id_mess, R#reponse_minichat.repondant =:= M#minichat.id, M#minichat.auteur_id =:= Id_user
]), [{unique_all, true}])
possede_message(Id_user, Id_mess) ->
case mnesia:transaction(
fun() ->
- qlc:e(qlc:q([E#minichat.auteur_id || E <- mnesia:table(minichat), E#minichat.id =:= Id_mess]))
+ e(q([E#minichat.auteur_id || E <- mnesia:table(minichat), E#minichat.id =:= Id_mess]))
end
) of
{atomic, [Id_user | []]} -> true;
ip_table() ->
resultat_transaction(mnesia:transaction(
fun() ->
- qlc:e(qlc:q([IP || IP <- mnesia:table(ip_table)]))
+ e(q([IP || IP <- mnesia:table(ip_table)]))
end
)).
est_banni(User_id) ->
resultat_transaction(mnesia:transaction(
fun() ->
- case qlc:e(qlc:q([
+ case e(q([
{IP#ip_table.ban, IP#ip_table.ban_duration} ||
U <- mnesia:table(user),
U#user.id =:= User_id,
can_register(IP) ->
resultat_transaction(mnesia:transaction(
fun() ->
- case qlc:e(qlc:q([I || I <- mnesia:table(ip_table), I#ip_table.ip =:= IP])) of
+ case e(q([I || I <- mnesia:table(ip_table), I#ip_table.ip =:= IP])) of
[] ->
mnesia:write(#ip_table{ip = IP, date_last_try_register = now()}),
true;
trolls() ->
resultat_transaction(mnesia:transaction(
fun() ->
- qlc:e(qlc:q([T || T <- qlc:keysort(2, mnesia:table(troll))]))
+ e(q([T || T <- qlc:keysort(2, mnesia:table(troll))]))
end
)).
+
+% Renvoie les trolls manquants posté après Last_id.
+trolls(Last_id) ->
+ resultat_transaction(mnesia:transaction(
+ e(q([T || T <- qlc:keysort(2, mnesia:table(troll)), T#troll.id > Last_id, T#troll.date_post =:= undefined]))
+ )).
+
+
% Renvoie les trolls manquants posté après Last_id.
% Si pas de trolls alors attend un événement tel qu'un ajout, une modification ou une suppression.
% renvoie :
% ou {add, [Trolls]}
% ou {del, Troll_id}
% ou timeout
-trolls(Last_id) ->
+trolls_attente(Last_id) ->
case mnesia:subscribe({table, troll, detailed}) of
{error, E} = E ->
E;
_ ->
- case resultat_transaction(mnesia:transaction(
+ R = case resultat_transaction(mnesia:transaction(
fun() ->
- qlc:e(qlc:q([T || T <- qlc:keysort(2, mnesia:table(troll)), T#troll.id > Last_id, T#troll.date_post =:= undefined]))
+ e(q([T || T <- qlc:keysort(2, mnesia:table(troll)), T#troll.id > Last_id, T#troll.date_post =:= undefined]))
end
)) of
[] -> % pas de trolls
attend_evenement_troll();
Trolls ->
{add, Trolls}
- end
+ end,
+ mnesia:unsubscribe({table, troll, detailed}),
+ R
end.
attend_evenement_troll() ->
% s'il n'y a pas de trolls que l'utilisateur n'a pas connaissance alors on attend un événement
receive
+ % cas où un troll est choisit comme courant
+ {mnesia_table_event, {write, troll, Troll, [Old_troll | _], _}} when Old_troll#troll.date_post =:= undefined, Troll#troll.date_post =/= undefined ->
+ {del, Troll#troll.id};
{mnesia_table_event, {write, troll, Troll, [_Old_troll | _], _}} ->
{mod, Troll};
{mnesia_table_event, {write, troll, Troll, [], _}} ->
resultat_transaction(mnesia:transaction(
fun() ->
% control le nombre de troll déjà posté
- Nb_troll_poste_par_user = length(qlc:e(qlc:q(
+ Nb_troll_poste_par_user = length(e(q(
[
E#troll.id || E <- mnesia:table(troll),
E#troll.id_user =:= User_id,
E#troll.date_post =:= undefined
]
))),
- Nb_troll_poste_total = length(qlc:e(qlc:q(
+ Nb_troll_poste_total = length(e(q(
[
E#troll.id || E <- mnesia:table(troll),
E#troll.date_post =:= undefined
troll_by_id(Troll_id) ->
resultat_transaction(mnesia:transaction(
fun() ->
- case qlc:e(qlc:q([T || T <- mnesia:table(troll), T#troll.id =:= Troll_id])) of
+ case e(q([T || T <- mnesia:table(troll), T#troll.id =:= Troll_id])) of
[T] -> {ok, T};
_ ->
erreur
end
)).
+
+% Renvoie le troll actuel qui se trouve sur la page principale.
+% Renvois aucun si pas de troll courant.
+current_troll() ->
+ resultat_transaction(mnesia:transaction(
+ fun() ->
+ % TODO : ya pas moyen de désigner le champs plutot qu'avec un nombre pour le tri ?
+ C = cursor(q([T || T <- qlc:keysort(5, mnesia:table(troll), [{order, descending}]), T#troll.date_post =/= undefined])),
+ R = case qlc:next_answers(C, 1) of
+ [T] -> T;
+ _ -> aucun
+ end,
+ qlc:delete_cursor(C),
+ R
+ end
+ )).
+
+
+% Elit un troll au hasard parmis les trolls en attente (leur date_post =:= undefined)
+% met à jour sa date de post.
+% renvoie plus_de_trolls si il n'y a aucun troll en attente.
+elire_troll() ->
+ {A1,A2,A3} = now(),
+ random:seed(A1, A2, A3),
+ mnesia:transaction(
+ fun() ->
+ case e(q([T || T <- mnesia:table(troll), T#troll.date_post =:= undefined])) of
+ [] ->
+ plus_de_trolls;
+ Trolls ->
+ Troll = lists:nth(random:uniform(length(Trolls)), Trolls),
+ Troll2 = Troll#troll{date_post = now()},
+ mnesia:write(Troll2)
+ end
+ end
+ ).
+
+
update_version(1) ->
mnesia:transform_table(
projects / euphorik.git / blobdiff