sogo/SOPE/GDLContentStore/EOAdaptorChannel+GCS.m

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/*
Copyright (C) 2004-2005 SKYRIX Software AG
This file is part of OpenGroupware.org.
OGo 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 2, or (at your option) any
later version.
OGo 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 OGo; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
#include "EOAdaptorChannel+GCS.h"
#include "common.h"
@implementation EOAdaptorChannel(GCS)
- (BOOL)tableExistsWithName:(NSString *)_tableName {
NSException *ex;
NSString *sql;
BOOL didOpen;
didOpen = NO;
if (![self isOpen]) {
if (![self openChannel])
return NO;
didOpen = YES;
}
sql = @"SELECT COUNT(*) FROM ";
sql = [sql stringByAppendingString:_tableName];
sql = [sql stringByAppendingString:@" WHERE 1 = 2"];
ex = [[[self evaluateExpressionX:sql] retain] autorelease];
[self cancelFetch];
if (didOpen) [self closeChannel];
return ex != nil ? NO : YES;
}
@end /* EOAdaptorChannel(GCS) */