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QTBUG-18435 fix stored procedure output parameters on ODBC

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Follow-up to c55a99965d8c08d5f924d49db4fe4aa49df8096.

3 problems prevented stored procedure output parameters from working.
- SQLBindParameter needs access to buffer provided by QByteArray.
- The length of the buffer is measured in bytes.
- A typo corrupted conversion back to QString.

Also, data() makes more sense than constData() to expose the buffer.

Task-Id: QTBUG-18435
Change-Id: I66444b13c0f584ed79bcf026e5a23caff83c22cb
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
This commit is contained in:
Mark Brand 2012-04-12 22:26:08 +02:00 committed by Qt by Nokia
parent 84e782e2bd
commit f869a12c10
2 changed files with 38 additions and 5 deletions
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11
src/sql/drivers/odbc/qsql_odbc.cpp
View File

@ -1502,8 +1502,9 @@ bool QODBCResult::exec()
int strSize = str.length() * sizeof(SQLTCHAR);
if (bindValueType(i) & QSql::Out) {
QVarLengthArray<SQLTCHAR> ba(toSQLTCHAR(str));
ba.reserve(str.capacity());
QVarLengthArray<SQLTCHAR> a(toSQLTCHAR(str));
a.reserve(str.capacity());
QByteArray ba((const char *)a.constData(), a.size() * sizeof(SQLTCHAR));
r = SQLBindParameter(d->hStmt,
i + 1,
qParamType[(QFlag)(bindValueType(i)) & QSql::InOut],
@ -1511,10 +1512,10 @@ bool QODBCResult::exec()
strSize > 254 ? SQL_WLONGVARCHAR : SQL_WVARCHAR,
0, // god knows... don't change this!
0,
(void *)ba.constData(),
(void *)ba.data(),
ba.size(),
ind);
tmpStorage.append(QByteArray((const char *)ba.constData(), ba.size()*sizeof(SQLTCHAR)));
tmpStorage.append(ba);
break;
}
QByteArray strba((const char *)toSQLTCHAR(str).constData(), str.size()*sizeof(SQLTCHAR));
@ -1638,7 +1639,7 @@ bool QODBCResult::exec()
QByteArray first = tmpStorage.takeFirst();
QVarLengthArray<SQLTCHAR> array;
array.append((SQLTCHAR *)first.constData(), first.size());
values[i] = fromSQLTCHAR(array, first.size()/sizeof(SQLTCHAR*));
values[i] = fromSQLTCHAR(array, first.size()/sizeof(SQLTCHAR));
}
break;
}

32
tests/auto/sql/kernel/qsqlquery/tst_qsqlquery.cpp
View File

@ -211,6 +211,8 @@ private slots:
void QTBUG_5765();
void QTBUG_14132_data() { generic_data("QOCI"); }
void QTBUG_14132();
void QTBUG_18435_data() { generic_data("QODBC"); }
void QTBUG_18435();
void QTBUG_21884_data() { generic_data("QSQLITE"); }
void QTBUG_21884();
void QTBUG_16967_data() { generic_data("QSQLITE"); }
@ -3024,6 +3026,36 @@ void tst_QSqlQuery::QTBUG_14132()
QCOMPARE(q.boundValue(0).toString(), QLatin1String("OUTSTRING"));
}
void tst_QSqlQuery::QTBUG_18435()
{
QFETCH(QString, dbName);
QSqlDatabase db = QSqlDatabase::database(dbName);
CHECK_DATABASE(db);
if (!db.driverName().startsWith("QODBC") || !tst_Databases::isSqlServer(db))
return;
QSqlQuery q(db);
QString procName(qTableName("qtbug_18435_proc", __FILE__));
q.exec("DROP PROCEDURE " + procName);
const QString stmt =
"CREATE PROCEDURE " + procName + " @key nvarchar(50) OUTPUT AS\n"
"BEGIN\n"
" SET NOCOUNT ON\n"
" SET @key = 'TEST'\n"
"END\n";
QVERIFY_SQL(q, exec(stmt));
QVERIFY_SQL(q, prepare("{CALL "+ procName +"(?)}"));
const QString testStr = "0123";
q.bindValue(0, testStr, QSql::Out);
QVERIFY_SQL(q, exec());
QCOMPARE(q.boundValue(0).toString(), QLatin1String("TEST"));
QVERIFY_SQL(q, exec("DROP PROCEDURE " + procName));
}
void tst_QSqlQuery::QTBUG_5251()
{
QFETCH( QString, dbName );