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/* This file is part of the KDE project
Copyright (C) 2005 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 "preparedstatement.h"
#include <kexidb/connection.h>
#include <kexidb/connection_p.h>
#include <kdebug.h>
using namespace KexiDB;
PreparedStatement::PreparedStatement(StatementType type, ConnectionInternal& conn,
FieldList& fields, const TQStringList& where)
: KShared()
, m_type(type)
, m_fields(&fields)
, m_where(where.isEmpty() ? new TQStringList(where) : 0)
, m_whereFields(0)
{
Q_UNUSED(conn);
}
PreparedStatement::~PreparedStatement()
{
delete m_where;
delete m_whereFields;
}
TQCString PreparedStatement::generateStatementString()
{
TQCString s(1024);
if (m_type == SelectStatement) {
//! @todo only tables and trivial queries supported for select...
s = "SELECT ";
bool first = true;
// for (uint i=0; i<m_fields->fieldCount(); i++) {
for (Field::ListIterator it(m_fields->fieldsIterator()); it.current(); ++it) {
if (first)
first = false;
else
s.append(", ");
s.append(it.current()->name().latin1());
}
first = true;
s.append(" WHERE ");
// for (uint i=0; i<m_fields->fieldCount(); i++) {
m_whereFields = new Field::List();
for (TQStringList::ConstIterator it=m_where->constBegin(); it!=m_where->constEnd(); ++it) {
// for (Field::ListIterator it(m_fields->fieldsIterator()); it.current(); ++it) {
if (first)
first = false;
else
s.append(" AND ");
Field *f = m_fields->field(*it);
if (!f) {
KexiDBWarn << "PreparedStatement::generateStatementString(): no '"
<< *it << "' field found" << endl;
continue;
}
m_whereFields->append(f);
s.append((*it).latin1());
s.append("=?");
}
}
else if (m_type == InsertStatement /*&& dynamic_cast<TableSchema*>(m_fields)*/) {
//! @todo only tables supported for insert; what about views?
TableSchema *table = m_fields->fieldCount()>0 ? m_fields->field(0)->table() : 0;
if (!table)
return ""; //err
TQCString namesList;
bool first = true;
const bool allTableFieldsUsed = dynamic_cast<TableSchema*>(m_fields); //we are using a selection of fields only
Field::ListIterator it = m_fields->fieldsIterator();
for (uint i=0; i<m_fields->fieldCount(); i++, ++it) {
if (first) {
s.append( "?" );
if (!allTableFieldsUsed)
namesList = it.current()->name().latin1();
first = false;
} else {
s.append( ",?" );
if (!allTableFieldsUsed)
namesList.append(TQCString(", ")+it.current()->name().latin1());
}
}
s.append(")");
s.prepend(TQCString("INSERT INTO ") + table->name().latin1()
+ (allTableFieldsUsed ? TQCString() : (" (" + namesList + ")"))
+ " VALUES (");
}
return s;
}
PreparedStatement& PreparedStatement::operator<< ( const TQVariant& value )
{
m_args.append(value);
return *this;
}
/*bool PreparedStatement::insert()
{
const bool res = m_conn->drv_prepareStatement(this);
const bool res = m_conn->drv_insertRecord(this);
clearArguments();
return res;
}
bool PreparedStatement::select()
{
const bool res = m_conn->drv_bindArgumentForPreparedStatement(this, m_args.count()-1);
}*/
void PreparedStatement::clearArguments()
{
m_args.clear();
}
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