+ void initDb();
+ void createBuffer(UserId user, QString network, QString buffer);
+ QSqlQuery *logMessageQuery;
+ QSqlQuery *addSenderQuery;
+ QSqlQuery *getLastMessageIdQuery;
+ QSqlQuery *requestMsgsQuery;
+ QSqlQuery *requestMsgsOffsetQuery;
+ QSqlQuery *requestMsgsSinceQuery;
+ QSqlQuery *requestMsgsSinceOffsetQuery;
+ QSqlQuery *requestMsgRangeQuery;
+ QSqlQuery *createNetworkQuery;
+ QSqlQuery *createBufferQuery;
+ QSqlQuery *getBufferIdQuery;