diff --git a/src/database/queue.c b/src/database/queue.c index c936b1fccc79cdb696268487faf1455c7eb08605..5c7cc914353b6a2626b1c4ed18ae204a05dd92e0 100644 --- a/src/database/queue.c +++ b/src/database/queue.c @@ -252,17 +252,20 @@ database_queue_add_uri(volatile sqlite3 *db, struct lkt_uri *uri, int priority) bool database_queue_del_id(volatile sqlite3 *db, int id) { +#define POS_OF_ID "(SELECT position FROM queue WHERE kara_id = %d)" static const char *SQL_TEMPLATE = "BEGIN TRANSACTION;" "WITH before(pos) AS (SELECT position FROM queue JOIN queue_state WHERE position < current ORDER BY position DESC LIMIT 1) " "UPDATE queue_state SET current = CASE" " WHEN current IS NULL THEN NULL" " ELSE (SELECT pos FROM before) " - "END WHERE current > (SELECT position FROM queue WHERE kara_id = %d);" + "END WHERE current > " POS_OF_ID ";" "DELETE FROM queue WHERE kara_id = %d;" + "UPDATE queue SET position = position - 1 WHERE position > " POS_OF_ID ";" "COMMIT TRANSACTION;"; +#undef POS_OF_ID char SQL[LKT_MAX_SQLITE_STATEMENT]; - snprintf(SQL, LKT_MAX_SQLITE_STATEMENT - 1, SQL_TEMPLATE, id, id, id); + snprintf(SQL, LKT_MAX_SQLITE_STATEMENT - 1, SQL_TEMPLATE, id, id, id, id); SQL[LKT_MAX_SQLITE_STATEMENT - 1] = '\0'; SQLITE_EXEC(db, SQL, error); return true;