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/* This file is part of the KDE project
Copyright (C) 2006 Jaroslaw Staniek <[email protected]>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "queryschemaparameter.h"
#include "driver.h"
#include <kdebug.h>
#include <tqguardedptr.h>
using namespace KexiDB;
QuerySchemaParameter::QuerySchemaParameter()
: type(Field::InvalidType)
{
}
QuerySchemaParameter::~QuerySchemaParameter()
{
}
TQString QuerySchemaParameter::debugString() const
{
return TQString("msg=\"%1\" type=\"%2\"").tqarg(Field::typeName(type)).tqarg(message);
}
void KexiDB::debug(const QuerySchemaParameterList& list)
{
KexiDBDbg << TQString("Query parameters (%1):").tqarg(list.count()) << endl;
foreach(QuerySchemaParameterListConstIterator, it, list)
KexiDBDbg << " - " << (*it).debugString() << endl;
}
//================================================
class QuerySchemaParameterValueListIterator::Private
{
public:
Private(const Driver& aDriver, const TQValueList<TQVariant>& aParams)
: driver(&aDriver)
, params(aParams)
{
//move to last item, as the order is reversed due to parser's internals
paramsIt = params.fromLast(); //constBegin();
paramsItPosition = params.count();
}
TQGuardedPtr<const Driver> driver;
const TQValueList<TQVariant> params;
TQValueList<TQVariant>::ConstIterator paramsIt;
uint paramsItPosition;
};
QuerySchemaParameterValueListIterator::QuerySchemaParameterValueListIterator(
const Driver& driver, const TQValueList<TQVariant>& params)
: d( new Private(driver, params) )
{
}
QuerySchemaParameterValueListIterator::~QuerySchemaParameterValueListIterator()
{
delete d;
}
TQVariant QuerySchemaParameterValueListIterator::getPreviousValue()
{
if (d->paramsItPosition == 0) { //d->params.constEnd()) {
KexiDBWarn << "QuerySchemaParameterValues::getPreviousValue() no prev value" << endl;
return TQVariant();
}
TQVariant res( *d->paramsIt );
--d->paramsItPosition;
--d->paramsIt;
// ++d->paramsIt;
return res;
}
TQString QuerySchemaParameterValueListIterator::getPreviousValueAsString(Field::Type type)
{
if (d->paramsItPosition == 0) { //d->params.constEnd()) {
KexiDBWarn << "QuerySchemaParameterValues::getPreviousValueAsString() no prev value" << endl;
return d->driver->valueToSQL(type, TQVariant()); //"NULL"
}
TQString res( d->driver->valueToSQL(type, *d->paramsIt) );
--d->paramsItPosition;
--d->paramsIt;
// ++d->paramsIt;
return res;
}
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