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/*
* command.cc
*
* Copyright (C) 2009 Tim Marston <edam@waxworlds.org>
*
* This file is part of sqlite3cc (hereafter referred to as "this program").
* See http://www.waxworlds.org/edam/software/sqlite3cc for more information.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <sqlite3cc/command.h>
#include <sqlite3cc/connection.h>
#include <sqlite3cc/manipulator.h>
#include <cassert>
sqlite::command::command(
connection &connection,
const std::string &sql )
:
detail::basic_statement( connection, sql ),
_changes( 0 ),
_total_changes( 0 ),
_last_insert_rowid( 0 )
{
assert( sqlite3_column_count( _handle ) == 0 );
}
sqlite::command::command(
connection &connection )
:
detail::basic_statement( connection ),
_changes( 0 ),
_total_changes( 0 ),
_last_insert_rowid( 0 )
{
}
int sqlite::command::prepare(
const std::string &sql )
{
int code = detail::basic_statement::prepare( sql );
assert( code != SQLITE_OK || sqlite3_column_count( _handle ) == 0 );
return code;
}
int sqlite::command::step()
{
connection::mutex_guard lock( _connection );
int code = detail::basic_statement::step();
if( code == SQLITE_ROW ) throw sqlite_error( "command has results" );
if( code != SQLITE_DONE ) throw sqlite_error( _connection, code );
_changes = sqlite3_changes( _connection._handle );
_total_changes = sqlite3_total_changes( _connection._handle );
_last_insert_rowid = sqlite3_last_insert_rowid( _connection._handle );
lock.leave();
// finalise now (which shouldn't matter for commands), so that there are no
// active statements if we come to begin, commit or rollback a transaction
finalize();
return code;
}
template< >
sqlite::detail::basic_statement &sqlite::detail::basic_statement::operator <<
< sqlite::detail::exec_t >(
const sqlite::detail::exec_t & )
{
sqlite::command &that = dynamic_cast< sqlite::command & >( *this );
int code = that.step();
if( code != SQLITE_DONE ) {
if( code == SQLITE_ROW )
throw sqlite_error( "statement returned results" );
else
throw sqlite_error( _connection, code );
}
return *this;
}
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