为什么自动创建NSManagedObject子类没有"正确"标题？

Question

如果我创建了NSManagedObject Subclass的子类,我会在实现文件Business.m上看到这些函数(例如)

这些函数都没有在头文件Business.h中声明.我必须亲自补充一下

- (void)addDistrictsObject:(District *)value;
- (void)addCategoriesObject:(Category *)value;
- (void)addReviewsObject:(Review *)value;

我想知道为什么我必须手动添加这些声明？当我尝试生成SubClass时为什么不自动？

以下是功能:

- (void)addPromotionsObject:(Promotion *)value {    
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Promotions" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Promotions"] addObject:value];
    [self didChangeValueForKey:@"Promotions" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)removePromotionsObject:(Promotion *)value {
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Promotions" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Promotions"] removeObject:value];
    [self didChangeValueForKey:@"Promotions" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)addPromotions:(NSSet *)value {    
    [self willChangeValueForKey:@"Promotions" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Promotions"] unionSet:value];
    [self didChangeValueForKey:@"Promotions" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
}

- (void)removePromotions:(NSSet *)value {
    [self willChangeValueForKey:@"Promotions" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Promotions"] minusSet:value];
    [self didChangeValueForKey:@"Promotions" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
}



- (void)addCategoriesObject:(Category *)value {    
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Categories" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Categories"] addObject:value];
    [self didChangeValueForKey:@"Categories" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)removeCategoriesObject:(Category *)value {
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Categories" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Categories"] removeObject:value];
    [self didChangeValueForKey:@"Categories" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)addCategories:(NSSet *)value {    
    [self willChangeValueForKey:@"Categories" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Categories"] unionSet:value];
    [self didChangeValueForKey:@"Categories" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
}

- (void)removeCategories:(NSSet *)value {
    [self willChangeValueForKey:@"Categories" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Categories"] minusSet:value];
    [self didChangeValueForKey:@"Categories" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
}



- (void)addImagesObject:(Image *)value {    
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Images" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Images"] addObject:value];
    [self didChangeValueForKey:@"Images" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)removeImagesObject:(Image *)value {
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Images" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Images"] removeObject:value];
    [self didChangeValueForKey:@"Images" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)addImages:(NSSet *)value {    
    [self willChangeValueForKey:@"Images" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Images"] unionSet:value];
    [self didChangeValueForKey:@"Images" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
}

- (void)removeImages:(NSSet *)value {
    [self willChangeValueForKey:@"Images" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Images"] minusSet:value];
    [self didChangeValueForKey:@"Images" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
}



- (void)addReviewsObject:(Review *)value {    
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Reviews" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Reviews"] addObject:value];
    [self didChangeValueForKey:@"Reviews" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)removeReviewsObject:(Review *)value {
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Reviews" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Reviews"] removeObject:value];
    [self didChangeValueForKey:@"Reviews" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)addReviews:(NSSet *)value {    
    [self willChangeValueForKey:@"Reviews" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Reviews"] unionSet:value];
    [self didChangeValueForKey:@"Reviews" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
}

- (void)removeReviews:(NSSet *)value {
    [self willChangeValueForKey:@"Reviews" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Reviews"] minusSet:value];
    [self didChangeValueForKey:@"Reviews" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
}


- (void)addURLsObject:(URL *)value {    
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"URLs" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"URLs"] addObject:value];
    [self didChangeValueForKey:@"URLs" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)removeURLsObject:(URL *)value {
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"URLs" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"URLs"] removeObject:value];
    [self didChangeValueForKey:@"URLs" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)addURLs:(NSSet *)value {    
    [self willChangeValueForKey:@"URLs" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"URLs"] unionSet:value];
    [self didChangeValueForKey:@"URLs" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
}

- (void)removeURLs:(NSSet *)value {
    [self willChangeValueForKey:@"URLs" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"URLs"] minusSet:value];
    [self didChangeValueForKey:@"URLs" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
}



- (void)addDistrictsObject:(District *)value {    
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Districts" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Districts"] addObject:value];
    [self didChangeValueForKey:@"Districts" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)removeDistrictsObject:(District *)value {
    NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
    [self willChangeValueForKey:@"Districts" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [[self primitiveValueForKey:@"Districts"] removeObject:value];
    [self didChangeValueForKey:@"Districts" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
    [changedObjects release];
}

- (void)addDistricts:(NSSet *)value {    
    [self willChangeValueForKey:@"Districts" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Districts"] unionSet:value];
    [self didChangeValueForKey:@"Districts" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
}

- (void)removeDistricts:(NSSet *)value {
    [self willChangeValueForKey:@"Districts" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
    [[self primitiveValueForKey:@"Districts"] minusSet:value];
    [self didChangeValueForKey:@"Districts" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
}

Answer 1

在Xcode 4.x之前,自动生成的代码确实为方法生成了头定义.丢失标题可能是X4非苹果式滑动式质量控制的另一个受害者.

标题实际上只需要intellisense或其他人机界面工具.该@dynamic预处理命令将告诉该方法存在基于命名约定的编译器.在运行时,Core Data将通过发送respondsToSelector到实例化对象来检查类,或者它将使用直接键值方法.

您始终可以使用手动或构建运行的小脚本自行添加它们.这很痛苦,但显然X4设计专注于管理大型多产品项目,他们放弃了一些较旧的基本内容.