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/*
SQLite3Adaptor.m
Copyright (C) 2006 Free Software Foundation, Inc.
Author: Matt Rice <ratmice@gmail.com>
Date: 2006
This file is part of the GNUstep Database Library.
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 3 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,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <GNUstepBase/GNUstep.h>
#include "SQLite3Adaptor.h"
#include "SQLite3Context.h"
#include "SQLite3Expression.h"
#include <Foundation/NSDictionary.h>
NSString *SQLite3AdaptorExceptionName = @"SQLite3AdaptorException";
@implementation SQLite3Adaptor
- (id) init
{
return [self initWithName:@"SQLite3Adaptor"];
}
static NSString *types[][2] =
{
{@"INTEGER", @"NSDecimalNumber"},
{@"INT", @"NSDecimalNumber"},
{@"TINYINT", @"NSDecimalNumber"},
{@"SMALLINT", @"NSDecimalNumber"},
{@"MEDIUMINT", @"NSDecimalNumber"},
{@"BIGINT", @"NSDecimalNumber"},
{@"UNSIGNED BIGINT", @"NSDecimalNumber"},
{@"INT2", @"NSDecimalNumber"},
{@"INT8", @"NSDecimalNumber"},
{@"TEXT", @"NSString"},
{@"CLOB", @"NSString"},
{@"CHARACTER", @"NSString"},
{@"VARCHAR", @"NSString"},
{@"VARYING CHARACTER",@"NSString"},
{@"NCHAR", @"NSString"},
{@"CHAR", @"NSString"},
{@"NATIVE CHARACTER", @"NSString"},
{@"NVARCHAR", @"NSString"},
{@"BLOB", @"NSData"},
{@"REAL", @"NSNumber"},
{@"DOUBLE", @"NSNumber"},
{@"DOUBLE PRECISION", @"NSNumber"},
{@"FLOAT", @"NSNumber"},
{@"NUMERIC", @"NSNumber"},
{@"DECIMAL", @"NSNumber"},
{@"BOOLEAN", @"NSNumber"},
{@"BOOL", @"NSNumber"},
{@"DATE", @"NSCalendarDate"},
{@"DATETIME", @"NSCalendarDate"},
{@"NULL", @"EONull"},
};
+ (NSDictionary *)externalToInternalTypeMap
{
static NSDictionary *externalToInternalTypeMap = nil;
if (!externalToInternalTypeMap)
{
int i;
NSString *external[sizeof(types)/sizeof(types[0])];
NSString *internal[sizeof(types)/sizeof(types[0])];
for (i = 0; i < sizeof(types)/sizeof(types[0]); i++)
{
external[i] = types[i][0];
internal[i] = types[i][1];
}
externalToInternalTypeMap = [[NSDictionary dictionaryWithObjects:internal forKeys:external count:i] retain];
}
return externalToInternalTypeMap;
}
+ (NSString *)internalTypeForExternalType:(NSString *)extType model:(EOModel *)model
{
return [[self externalToInternalTypeMap] objectForKey:extType];
}
+ (NSString *)defaultExternalType
{
return types[1][0];
}
+ (void)assignExternalTypeForAttribute:(EOAttribute *)attribute
{
[attribute setExternalType:types[[attribute adaptorValueType]][0]];
}
- (EOAdaptorContext *)createAdaptorContext
{
return AUTORELEASE([[SQLite3Context alloc] initWithAdaptor: self]);
}
- (Class)defaultExpressionClass
{
return [SQLite3Expression class];
}
- (Class)expressionClass
{
return [SQLite3Expression class];
}
- (BOOL)isValidQualifierType:(NSString *)typeName model:(EOModel *)model
{
return ![typeName isEqualToString:@"BLOB"];
}
- (void)assertConnectionDictionaryIsValid
{
NSString *dbPath = [[self connectionDictionary] objectForKey:@"databasePath"];
// don't check if it exists because might be creating it.
NSAssert(dbPath, @"invalid connection dictionary");
}
- (NSString *)fetchedValueForString: (NSString *)value
attribute: (EOAttribute *)attribute
{
return value;
}
- (NSNumber *)fetchedValueForNumberValue: (NSNumber *)value
attribute: (EOAttribute *)attribute
{
return value; // TODO scale and precision
}
- (NSCalendarDate *)fetchedValueForDateValue: (NSCalendarDate *)value
attribute: (EOAttribute *)attribute
{
return value;
}
- (NSData *)fetchedValueForDataValue: (NSData *)value
attribute: (EOAttribute *)attribute
{
return value;
}
@end
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