mirror of
https://github.com/gnustep/libs-gdl2.git
synced 2025-02-21 10:30:58 +00:00
7331d77528
Install into GNUSTEP_SYSTEM_ROOT by default. * * Update email addresses for Mirko Viviani and David Ayers. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gdl2/trunk@23510 72102866-910b-0410-8b05-ffd578937521
120 lines
2.9 KiB
Objective-C
120 lines
2.9 KiB
Objective-C
/**
|
|
EOMasterDetailAssociation.m
|
|
|
|
Copyright (C) 2004,2005 Free Software Foundation, Inc.
|
|
|
|
Author: David Ayers <ayers@fsfe.org>
|
|
|
|
This file is part of the GNUstep Database Library
|
|
|
|
The GNUstep Database Library 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.
|
|
|
|
The GNUstep Database 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the GNUstep Database Library; see the file COPYING. If not,
|
|
write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef GNUSTEP
|
|
#include <Foundation/NSString.h>
|
|
#include <Foundation/NSArray.h>
|
|
#else
|
|
#include <Foundation/Foundation.h>
|
|
#endif
|
|
|
|
#include <EOControl/EODetailDataSource.h>
|
|
|
|
#include "EODisplayGroup.h"
|
|
#include "EOMasterDetailAssociation.h"
|
|
#include "SubclassFlags.h"
|
|
|
|
@implementation EOMasterDetailAssociation
|
|
|
|
+ (NSArray *)aspects
|
|
{
|
|
static NSArray *_aspects = nil;
|
|
if (_aspects == nil)
|
|
{
|
|
_aspects
|
|
= RETAIN ([[super aspects] arrayByAddingObject: @"parent"]);
|
|
}
|
|
return _aspects;
|
|
}
|
|
|
|
+ (NSArray *)aspectSignatures
|
|
{
|
|
static NSArray *_signatures = nil;
|
|
if (_signatures == nil)
|
|
{
|
|
_signatures
|
|
= RETAIN ([[super aspectSignatures] arrayByAddingObject: @"1M"]);
|
|
}
|
|
return _signatures;
|
|
}
|
|
|
|
+ (BOOL)isUsableWithObject: (id)object
|
|
{
|
|
return [object isKindOfClass: [EODisplayGroup class]]
|
|
&& [[object dataSource] isKindOfClass: [EODetailDataSource class]];
|
|
}
|
|
|
|
+ (NSString *)displayName
|
|
{
|
|
return @"EOMasterDetailAssoc";
|
|
}
|
|
|
|
+ (NSString *)primaryAspect
|
|
{
|
|
return @"parent";
|
|
}
|
|
|
|
- (void)establishConnection
|
|
{
|
|
EODisplayGroup *parent = [self displayGroupForAspect:@"parent"];
|
|
|
|
[super establishConnection];
|
|
if (parent)
|
|
{
|
|
EODetailDataSource *ds = (id)[_object dataSource];
|
|
subclassFlags |= ParentAspectMask;
|
|
[ds setMasterClassDescription:[[parent dataSource]
|
|
classDescriptionForObjects]];
|
|
[ds setDetailKey:[self displayGroupKeyForAspect:@"parent"]];
|
|
}
|
|
}
|
|
|
|
- (void)breakConnection
|
|
{
|
|
[super breakConnection];
|
|
subclassFlags = 0;
|
|
}
|
|
|
|
- (void)subjectChanged
|
|
{
|
|
if (subclassFlags & ParentAspectMask)
|
|
{
|
|
id selectedObject = [[self displayGroupForAspect:@"parent"]
|
|
selectedObject];
|
|
id key = [self displayGroupKeyForAspect:@"parent"];
|
|
[[_object dataSource]
|
|
qualifyWithRelationshipKey:key
|
|
ofObject:selectedObject];
|
|
if ([_object fetch])
|
|
[_object redisplay];
|
|
}
|
|
}
|
|
|
|
- (EOObserverPriority)priority
|
|
{
|
|
return EOObserverPrioritySecond;
|
|
}
|
|
|
|
@end
|