具有主键的 RLMObject 基本模型类 - Objective-C

使用主键和一些通用默认属性的 RLMObject 基本模型类的示例。然后，子类可以设置特定于其需求的元数据。

@interface BaseModel : RLMObject

@property NSString *uuid;
@property NSString *metadata;

@end

@implementation BaseModel

+ (NSString *)primaryKey
{
    return @"uuid";
}

+ (NSDictionary *)defaultPropertyValues
{
    NSMutableDictionary *defaultPropertyValues = [NSMutableDictionary dictionaryWithDictionary:[super defaultPropertyValues]];
    NSString *uuid = [[NSUUID UUID] UUIDString];
    [defaultPropertyValues setValue:@"" forKey:@"metadata"];
    [defaultPropertyValues setValue:uuid forKey:@"uuid"];
    return defaultPropertyValues;
}

+ (NSArray *)ignoredProperties
{
    return @[];
}

@end