sql - How to retrieve generated primary key when row was inserted with QSqlTableModel::insertRecord -

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this question pertains qt 4.7.3 on windows postgres.

i'm trying insert row pretty large table via qsqltablemodel, because (hopefully) saves me trouble of typing out field names, using qsqltablemodel::settable. ask model record object qsqlrecord row(qsqltablemodel::record);, , fill data via qsqlrecord::setvalue. here's code persist row:

const bool insertok = tablemodel.insertrecord(-1, row);  if (!insertok || !tablemodel.submitall()) {   return -1; }  qsqlerror err = tablemodel.lasterror(); if (err.type() != qsqlerror::noerror) {   std::cerr << "errormsg " << std::endl;   return -1; }  const int primarykey = tablemodel.query().lastinsertid().toint();

the above tried, content of tablemodel.query() giant select, no returning keyword. lastinsertid() returns invalid qvariant. possible have qt provide generated primary key without making additional - fugly - roundtrip database. i'd rather not lock table ensure last 1 created, if can avoid it.

please advise.

"solved" using additional query lastval(). not sure if that's correct way use qt api. lastval() safe in transactions.


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