ios - How to delete the CoreData Objects with user-defined id? -

i have object this

@interface clubs : nsmanagedobject  @property (nonatomic, retain) nsstring * catname; @property (nonatomic, retain) nsstring * clubdescription; @property (nonatomic, retain) nsstring * clubid; @property (nonatomic, retain) nsstring * clubname; @property (nonatomic, retain) nsstring * distance; @property (nonatomic, retain) nsstring * logopath; @property (nonatomic, retain) nsstring * phone; @property (nonatomic, retain) nsstring * clubtype;  @end 

i want delete object have particular clubid?

suppose there twenty clubs added coredata, these object want delete clubid 120.

thanks

    -(void)deleteclubsentity:(nsstring*)clubid // pass value 120     {         nserror *error = nil;         nsmanagedobjectcontext *context = [self managedobjectcontext];          nsfetchrequest * fetch = [[nsfetchrequest alloc] init];         [fetch setentity:[nsentitydescription entityforname:@"clubs" inmanagedobjectcontext: context]];        [fetch setpredicate:[nspredicate predicatewithformat:@"(clubid  contains[cd] %@)",clubid]];         nsarray * records = [context executefetchrequest:fetch error:&error];            (nsmanagedobject * record in records) {                 [context deleteobject:record];             }        [context save:&error];     }