Question

I think this is a simple issue but I have somehow leaked object in core data. I have a simple one to one relation in core data.

       Person           <-------->         Address

        -name                                -city
        -email                               -country

The person model was relatively simple with just few attributes. But, I wanted to add the getter in Person class to access the city and country from the person class itself. So, I did something like,

@interface Person:NSManagedObject
    @property(nonatomic, strong) NSString *name;
    @property(nonatomic, strong) NSString *email;
    @property(nonatomic, strong) Address *address;
    -(NSString*)city;
    -(NSString*)country;
@end


@implementation Person
  -(NSString*)city{
     [self willAccessValueForKey:@"address"];
     NSString *c = [self valueForKeyPath:@"address.city"];
     [self didAccessValueForKey:@"address"];
   }

   -(NSString*)country{
     [self willAccessValueForKey:@"address"];
     NSString *c = [self valueForKeyPath:@"address.country"];
     [self didAccessValueForKey:@"address"];
   }

@end

With these getter I have been able to access the city with just simple getters in Person model as;

    person.city   and  person.country

But, I feel this is not the correct way to do it. How do I implement this feature to ensure that the memory is not leaked.

Answer 1

You can not access city or country directly from Person,
you can access like….

Person.Address.city
Person.Address.country

and no need of implement the:

-(NSString*)city;
-(NSString*)country;