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/***************************************************************************
* kexidbfieldlist.h
* This file is part of the KDE project
* copyright (C)2004-2005 by Sebastian Sauer (mail@dipe.org)
*
* This program 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 program 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 program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
***************************************************************************/
#ifndef KROSS_KEXIDB_KEXIDBFIELDLIST_H
#define KROSS_KEXIDB_KEXIDBFIELDLIST_H
#include <qstring.h>
#include <api/object.h>
#include <api/list.h>
#include <api/class.h>
#include <kexidb/drivermanager.h>
#include <kexidb/fieldlist.h>
namespace Kross { namespace KexiDB {
// Forward declarations.
class KexiDBField;
class KexiDBFieldList;
/**
* A list of fields. The KexiDBFieldList can be used to handle KexiDBField objects
* in a backend-independent way.
*
* Example (in Python) ;
* @code
* # Get the tableschema for the "dept" table.
* table = connection.tableSchema("dept")
* # Create a KexiDBFieldList based on the table and filled with the selected fields.
* subfields = ["deptno","name","loc"]
* fieldlist = table.fieldlist().subList(subfields)
* # Create the "SELECT * from dept;" queryschema.
* query = table.query()
* # We change the queryschema to "SELECT deptno,name,loc FROM dept;" now.
* query.fieldlist().setFields(fieldlist)
* # and change the query to "SELECT deptno,name,loc FROM dept WHERE deptno=5;"
* query.setWhereExpression("deptno=5")
* # Execute the query and get a KexiDBCursor object as result which could be used to iterate through the result.
* cursor = connection.executeQuerySchema(query)
* @endcode
*/
class KexiDBFieldList : public Kross::Api::Class<KexiDBFieldList>
{
public:
KexiDBFieldList(::KexiDB::FieldList* fieldlist);
virtual ~KexiDBFieldList();
virtual const QString getClassName() const;
::KexiDB::FieldList* fieldlist() { return m_fieldlist; }
private:
/** Returns the number of fields. */
uint fieldCount();
/** Return the field specified by the index-number passed as an argument. */
KexiDBField* field(uint index);
/** Return the field specified by the as an argument passed fieldname. */
KexiDBField* fieldByName(const QString& name);
/** Returns a list of all fields. */
Kross::Api::List* fields();
/** Returns true if the KexiDBField object passed as an argument is in the field list. */
bool hasField(KexiDBField* field);
/** Return a list of field names. */
const QStringList names() const;
/** Adds the KexiDBField object passed as an argument to the field list. */
void addField(KexiDBField* field);
/** Inserts the KexiDBField object passed as the second argument
into the field list at the position defined by the first argument. */
void insertField(uint index, KexiDBField* field);
/** Removes the KexiDBField object passed as an argument from the field list. */
void removeField(KexiDBField* field);
/** Removes all KexiDBField objects from the fieldlist. */
void clear();
/** Set the fieldlist to the as argument passed list of fields. */
void setFields(KexiDBFieldList* fieldlist);
/** Creates and returns list that contain fields selected by name. */
KexiDBFieldList* subList(QValueList<QVariant> list);
private:
::KexiDB::FieldList* m_fieldlist;
};
}}
#endif
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