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