return AbstractSqlStorage::installedSchemaVersion();
}
-bool PostgreSqlStorage::updateSchemaVersion(int newVersion)
+bool PostgreSqlStorage::updateSchemaVersion(int newVersion, bool clearUpgradeStep)
{
- QSqlQuery query(logDb());
+ // Atomically update the schema version and clear the upgrade step, if specified
+ // Note: This will need reworked if "updateSchemaVersion" is ever called within a transaction.
+ QSqlDatabase db = logDb();
+ if (!beginTransaction(db)) {
+ qWarning() << "PostgreSqlStorage::updateSchemaVersion(int, bool): cannot start transaction!";
+ qWarning() << " -" << qPrintable(db.lastError().text());
+ return false;
+ }
+
+ QSqlQuery query(db);
query.prepare("UPDATE coreinfo SET value = :version WHERE key = 'schemaversion'");
query.bindValue(":version", newVersion);
safeExec(query);
- bool success = true;
if (!watchQuery(query)) {
- qCritical() << "PostgreSqlStorage::updateSchemaVersion(int): Updating schema version failed!";
- success = false;
+ qCritical() << "PostgreSqlStorage::updateSchemaVersion(int, bool): Updating schema version failed!";
+ db.rollback();
+ return false;
}
- return success;
+
+ if (clearUpgradeStep) {
+ // Try clearing the upgrade step if requested
+ if (!setSchemaVersionUpgradeStep("")) {
+ db.rollback();
+ return false;
+ }
+ }
+
+ // Successful, commit and return true
+ db.commit();
+ return true;
}
bool PostgreSqlStorage::setupSchemaVersion(int version)
return success;
}
+QString PostgreSqlStorage::schemaVersionUpgradeStep()
+{
+ QSqlQuery query(logDb());
+ query.prepare("SELECT value FROM coreinfo WHERE key = 'schemaupgradestep'");
+ safeExec(query);
+ watchQuery(query);
+ if (query.first())
+ return query.value(0).toString();
+
+ // Fall back to the default value
+ return AbstractSqlStorage::schemaVersionUpgradeStep();
+}
+
+bool PostgreSqlStorage::setSchemaVersionUpgradeStep(QString upgradeQuery)
+{
+ // Intentionally do not wrap in a transaction so other functions can include multiple operations
+
+ QSqlQuery query(logDb());
+ query.prepare("UPDATE coreinfo SET value = :upgradestep WHERE key = 'schemaupgradestep'");
+ query.bindValue(":upgradestep", upgradeQuery);
+ safeExec(query);
+
+ // Make sure that the query didn't fail (shouldn't ever happen), and that some non-zero number
+ // of rows were affected
+ bool success = watchQuery(query) && query.numRowsAffected() != 0;
+
+ if (!success) {
+ // The key might not exist (Quassel 0.13.0 and older). Try inserting it...
+ query = QSqlQuery(logDb());
+ query.prepare("INSERT INTO coreinfo (key, value) VALUES ('schemaupgradestep', :upgradestep)");
+ query.bindValue(":upgradestep", upgradeQuery);
+ safeExec(query);
+
+ if (!watchQuery(query)) {
+ qCritical() << Q_FUNC_INFO << "Setting schema upgrade step failed!";
+ success = false;
+ }
+ else {
+ success = true;
+ }
+ }
+ return success;
+}
+
UserId PostgreSqlStorage::addUser(const QString& user, const QString& password, const QString& authenticator)
{
QSqlQuery query(logDb());