想要在我的自定义对象中具有特定值的所有键

Question

我在ModelObject中有以下数据，我希望所有键值 1 。

{
  id: "6",
  hemophilia: "1",
  diabetes: "0",
  hepatitis: "1",
  hiv_positive: "0",
  skin_diseases: "1",
  eczema: "0",
  allergies: "0",
  autoimmune_diseases: "0",
  herpes: "0",
  infectious_diseases: "0",
  epilepsy: "0",
  cardiovascular_problems: "0",
  anticoagulant: "0",
  pregnant: "0",
  daily_basics_medications: "0",
  pacemaker: "0",
  wounds_healing_problems: "0",
  hormone_therapy: "0",
  seborrheic_dermatitis: "0",
  regular_exercise: "0",
  dust_exposure: "0"
}

基于以上数据，我的输出将是：

["hemophilia","hepatitis","skin_diseases"]

我希望通过Predicate或某种过滤形式，以便在最短的时间内获得预期的输出。

我的Model类如下所示：

@interface MyMedical : NSObject

@property (nonatomic, retain) NSString* medicalId;
@property (nonatomic) BOOL hemophilia;
@property (nonatomic) BOOL diabetes;
@property (nonatomic) BOOL hepatitis;
@property (nonatomic) BOOL hiv_positive;
@property (nonatomic) BOOL skin_diseases;
@property (nonatomic) BOOL eczema;
@property (nonatomic) BOOL allergies;
@property (nonatomic) BOOL autoimmune_diseases;
@property (nonatomic) BOOL herpes;
@property (nonatomic) BOOL infectious_diseases;
@property (nonatomic) BOOL epilepsy;
@property (nonatomic) BOOL cardiovascular_problems;
@property (nonatomic) BOOL anticoagulant;
@property (nonatomic) BOOL pregnant;
@property (nonatomic) BOOL daily_basics_medications;
@property (nonatomic) BOOL pacemaker;
@property (nonatomic) BOOL wounds_healing_problems;
@property (nonatomic) BOOL hormone_therapy;
@property (nonatomic) BOOL seborrheic_dermatitis;
@property (nonatomic) BOOL regular_exercise;
@property (nonatomic) BOOL dust_exposure;

- (id) initWithNSDictionary:(NSDictionary*)data;

@end

先谢谢。