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a545c3942b
classes to eliminate issues with duplicated objects. closes #611, #612, #613, #618 * NSEntityDescription is now aware of the primaryKeyAttribute. Can be configured via Interface Builder within Xcode or programatically. * Added findByPrimaryKey: interface to the Core Data extensions. * Relaxed dependencies on RKManagedObjectMapping across the system now that primaryKey is available without a reference to the mapping.
39 lines
1.1 KiB
Objective-C
39 lines
1.1 KiB
Objective-C
//
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// NSEntityDescription+RKAdditions.m
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// RestKit
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//
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// Created by Blake Watters on 3/22/12.
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// Copyright (c) 2012 RestKit. All rights reserved.
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//
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#import <objc/runtime.h>
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#import "NSEntityDescription+RKAdditions.h"
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NSString * const RKEntityDescriptionPrimaryKeyAttributeUserInfoKey = @"primaryKeyAttribute";
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static char primaryKeyAttributeKey;
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@implementation NSEntityDescription (RKAdditions)
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- (NSString *)primaryKeyAttribute
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{
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// Check for an associative object reference
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NSString *primaryKeyAttribute = (NSString *) objc_getAssociatedObject(self, &primaryKeyAttributeKey);
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// Fall back to the userInfo dictionary
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if (! primaryKeyAttribute) {
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primaryKeyAttribute = [self.userInfo valueForKey:RKEntityDescriptionPrimaryKeyAttributeUserInfoKey];
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}
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return primaryKeyAttribute;
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}
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- (void)setPrimaryKeyAttribute:(NSString *)primaryKeyAttribute
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{
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objc_setAssociatedObject(self,
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&primaryKeyAttributeKey,
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primaryKeyAttribute,
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OBJC_ASSOCIATION_RETAIN);
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}
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@end
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