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// ****************************************************************************
// copyright (c) 2000-2005 Horst Knorr <hk_classes@knoda.org>
// Edited by Anirban Biswas <utpal@cal2.vsnl.net.in>
// This file is part of the hk_postgresqlclasses library.
// This file may be distributed and/or modified under the terms of the
// GNU Library Public License version 2 as published by the Free Software
// Foundation and appearing in the file COPYING included in the
// packaging of this file.
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// ****************************************************************************
#include "hk_postgresqldatabase.h"
#include "hk_postgresqlconnection.h"
#include "hk_postgresqltable.h"
#include "hk_postgresqlresultquery.h"
#include "hk_postgresqlactionquery.h"
#include "hk_postgresqlview.h"
hk_postgresqldatabase::hk_postgresqldatabase(hk_postgresqlconnection* c):hk_database(c)
{
p_postgresqlconnection=c;
}
hk_postgresqlconnection* hk_postgresqldatabase::connection(void)
{
return p_postgresqlconnection;
}
void hk_postgresqldatabase::driver_specific_tablelist(void)
{
unsigned int i;
p_tablelist.erase(p_tablelist.begin(),p_tablelist.end());
if (p_postgresqlconnection!=NULL)
{
if ( p_postgresqlconnection->connect())
{
//pg_table where postgresql stores name of all the relations of a DB.
PGresult* Res = PQexec(p_postgresqlconnection->dbhandler() , "select relname as name from pg_class where relname!~'^pg_' and relkind='r' ORDER BY relname" );
if (PQresultStatus(Res) == PGRES_TUPLES_OK)
{
for (i=0; i<PQntuples(Res);i++)
{
p_tablelist.insert(p_tablelist.end(), PQgetvalue(Res ,i , 0));
}
}
PQclear(Res);
}
}
//sort(p_tablelist.begin(),p_tablelist.end());
}
void hk_postgresqldatabase::driver_specific_viewlist(void)
{
unsigned int i;
p_viewlist.erase(p_viewlist.begin(),p_viewlist.end());
if (p_postgresqlconnection!=NULL)
{
if ( p_postgresqlconnection->connect())
{
//pg_table where postgresql stores name of all the relations of a DB.
PGresult* Res = PQexec(p_postgresqlconnection->dbhandler() , "select relname as name from pg_class where relname!~'^pg_' and relkind='v' ORDER BY relname" );
if (PQresultStatus(Res) == PGRES_TUPLES_OK)
{
for (i=0; i<PQntuples(Res);i++)
{
p_viewlist.insert(p_viewlist.end(), PQgetvalue(Res ,i , 0));
}
}
PQclear(Res);
}
}
//sort(p_viewlist.begin(),p_viewlist.end());
}
hk_datasource* hk_postgresqldatabase::driver_specific_new_table(hk_presentation* p)
{
return new hk_postgresqltable(this,p);
}
hk_datasource* hk_postgresqldatabase::driver_specific_new_resultquery(hk_presentation* p)
{
hk_postgresqlresultquery *x;
x = new hk_postgresqlresultquery(this , p);
return x ;
}
hk_datasource* hk_postgresqldatabase::driver_specific_new_view(hk_presentation* p)
{
hk_postgresqlview *x;
x = new hk_postgresqlview(this , p);
return x ;
}
hk_actionquery * hk_postgresqldatabase::driver_specific_new_actionquery(void)
{
hk_postgresqlactionquery *a;
a = new hk_postgresqlactionquery(this);
return a;
}
bool hk_postgresqldatabase::driver_specific_select_db(void)
{
PGconn *newconn;
if (p_postgresqlconnection!=NULL)
{
p_postgresqlconnection->set_postgresdatabase(name());
p_postgresqlconnection->driver_specific_disconnect();
return p_postgresqlconnection->driver_specific_connect();
}
return false;
}
bool hk_postgresqldatabase::driver_specific_rename_table(const hk_string& oldname,const hk_string& newname)
{
hk_postgresqlactionquery* query=new hk_postgresqlactionquery(this);
hk_string sql="ALTER TABLE "+query->identifierdelimiter()+oldname+query->identifierdelimiter()+" RENAME TO "+query->identifierdelimiter()+newname+query->identifierdelimiter();
query->set_sql(sql.c_str(),sql.size());
bool res=query->execute();
delete query;
return res;
}
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