Remove meaningless conditional and improve user input handling

Author: bjornharrtell

src/providers/oracle/ocispatial/qsql_ocispatial.cpp

@@ -490,29 +490,23 @@ void QOCISpatialResultPrivate::setStatementAttributes()
 
   int r = OCI_SUCCESS;
 
-  if ( prefetchRows >= 0 )
-  {
-    r = OCIAttrSet( sql,
-                    OCI_HTYPE_STMT,
-                    &prefetchRows,
-                    0,
-                    OCI_ATTR_PREFETCH_ROWS,
-                    err );
-    if ( r != OCI_SUCCESS )
-      qOraWarning( "Couldn't set OCI_ATTR_PREFETCH_ROWS: ", err );
-  }
-  if ( prefetchMem >= 0 )
-  {
-    r = OCIAttrSet( sql,
-                    OCI_HTYPE_STMT,
-                    &prefetchMem,
-                    0,
-                    OCI_ATTR_PREFETCH_MEMORY,
-                    err );
-    if ( r != OCI_SUCCESS )
-      qOraWarning( "QOCISpatialResultPrivate::setStatementAttributes:"
-                   " Couldn't set OCI_ATTR_PREFETCH_MEMORY: ", err );
-  }
+  r = OCIAttrSet( sql,
+                  OCI_HTYPE_STMT,
+                  &prefetchRows,
+                  0,
+                  OCI_ATTR_PREFETCH_ROWS,
+                  err );
+  if ( r != OCI_SUCCESS )
+    qOraWarning( "Couldn't set OCI_ATTR_PREFETCH_ROWS: ", err );
+  r = OCIAttrSet( sql,
+                  OCI_HTYPE_STMT,
+                  &prefetchMem,
+                  0,
+                  OCI_ATTR_PREFETCH_MEMORY,
+                  err );
+  if ( r != OCI_SUCCESS )
+    qOraWarning( "QOCISpatialResultPrivate::setStatementAttributes:"
+                 " Couldn't set OCI_ATTR_PREFETCH_MEMORY: ", err );
 }
 
 int QOCISpatialResultPrivate::bindValue( OCIStmt *sql, OCIBind **hbnd, OCIError *err, int pos,
@@ -3832,15 +3826,19 @@ static void qParseOpts( const QString &options, QOCISpatialDriverPrivate *d )
     bool ok;
     if ( opt == QLatin1String( "OCI_ATTR_PREFETCH_ROWS" ) )
     {
-      d->prefetchRows = val.toInt( &ok );
+      int intVal = val.toInt( &ok );
       if ( !ok )
         d->prefetchRows = QOCISPATIAL_PREFETCH_ROWS;
+      else if ( intVal >= 0 )
+        d->prefetchRows = static_cast<ub4>( intVal );
     }
     else if ( opt == QLatin1String( "OCI_ATTR_PREFETCH_MEMORY" ) )
     {
-      d->prefetchMem = val.toInt( &ok );
+      int intVal = val.toInt( &ok );
       if ( !ok )
         d->prefetchMem = QOCISPATIAL_PREFETCH_MEM;
+      else if ( intVal >= 0 )
+        d->prefetchMem = static_cast<ub4>( intVal );
     }
     else
     {