diff options
author | Robert Szefner <r.szefner@hydro-partner.pl> | 2019-12-07 00:05:47 +0100 |
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committer | Robert Szefner <r.szefner@hydro-partner.pl> | 2019-12-10 21:21:34 +0100 |
commit | 6ffedc07a77a8e3d46851b74cf9456d5abf6f612 (patch) | |
tree | 6a77d422e938cb0bcd7ad42808b6a382f0715d78 /src/plugins | |
parent | 382f1a221b353892844dc7b1495741c4669955e7 (diff) |
PSQL: Optimize QPSQLResult::data() function for date and time types
Minor performance optimalizations:
- No need to check if the date and time are correct because the QDate,
QTime and QDateTime parsing functions already perform these checks
- No need to add minute part to the UTC offset before parsing the date,
because the QDateTime class can parse time zone offset both in form
±hh:mm and ±hh
Change-Id: Id74b7ae075135c5c8cf420247c49b5f12fe88899
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Diffstat (limited to 'src/plugins')
-rw-r--r-- | src/plugins/sqldrivers/psql/qsql_psql.cpp | 34 |
1 files changed, 9 insertions, 25 deletions
diff --git a/src/plugins/sqldrivers/psql/qsql_psql.cpp b/src/plugins/sqldrivers/psql/qsql_psql.cpp index 78ede6a0d3..e0f82eee73 100644 --- a/src/plugins/sqldrivers/psql/qsql_psql.cpp +++ b/src/plugins/sqldrivers/psql/qsql_psql.cpp @@ -692,40 +692,24 @@ QVariant QPSQLResult::data(int i) return dbl; } case QVariant::Date: - if (val[0] == '\0') { - return QVariant(QDate()); - } else { #if QT_CONFIG(datestring) - return QVariant(QDate::fromString(QString::fromLatin1(val), Qt::ISODate)); + return QVariant(QDate::fromString(QString::fromLatin1(val), Qt::ISODate)); #else - return QVariant(QString::fromLatin1(val)); + return QVariant(QString::fromLatin1(val)); #endif - } - case QVariant::Time: { - const QString str = QString::fromLatin1(val); + case QVariant::Time: #if QT_CONFIG(datestring) - if (str.isEmpty()) - return QVariant(QTime()); - else - return QVariant(QTime::fromString(str, Qt::ISODate)); + return QVariant(QTime::fromString(QString::fromLatin1(val), Qt::ISODate)); #else - return QVariant(str); + return QVariant(QString::fromLatin1(val)); #endif - } - case QVariant::DateTime: { - QString dtval = QString::fromLatin1(val); + case QVariant::DateTime: #if QT_CONFIG(datestring) - if (dtval.length() < 10) { - return QVariant(QDateTime()); - } else { - QChar sign = dtval[dtval.size() - 3]; - if (sign == QLatin1Char('-') || sign == QLatin1Char('+')) dtval += QLatin1String(":00"); - return QVariant(QDateTime::fromString(dtval, Qt::ISODate).toLocalTime()); - } + return QVariant(QDateTime::fromString(QString::fromLatin1(val), + Qt::ISODate).toLocalTime()); #else - return QVariant(dtval); + return QVariant(QString::fromLatin1(val)); #endif - } case QVariant::ByteArray: { size_t len; unsigned char *data = PQunescapeBytea((const unsigned char*)val, &len); |