Delete data from the entity

[sreenureddy]

I am trying removing data from entity but data is not deleting from the project.sqlite file in core simulator

• (void)saveRaceMeetingsWithArray:(NSArray )array { NSManagedObjectContext moc = [NSManagedObjectContext defaultContext]; [RaceMeeting truncateAll]; [moc saveOnlySelfAndWait]; for (NSDictionary dict in array) { PPRaceMeetingObject raceMeetingObject = [PPRaceMeetingObject objectFromDictionary:dict]; RaceMeeting *raceMeeting = [RaceMeeting findFirstByAttribute:@"guid" withValue:raceMeetingObject.guid]; if (!raceMeeting) { raceMeeting = [RaceMeeting createInContext:moc]; } raceMeeting.country = LSSTRING(raceMeetingObject.country); raceMeeting.courseName = raceMeetingObject.courseName; raceMeeting.date = raceMeetingObject.date; raceMeeting.day = raceMeetingObject.day; raceMeeting.guid = raceMeetingObject.guid; raceMeeting.isPurchased = @0; raceMeeting.countryCode = raceMeetingObject.countryCode; raceMeeting.productID = raceMeetingObject.productID; raceMeeting.racecourse = raceMeetingObject.racecourse; if ([raceMeetingObject.countryCode isEqualToString:@"kr"]) { raceMeeting.country = LSSTRING(@"K"); }

  if ([raceMeetingObject.countryCode isEqualToString:@"sg"]) {
      raceMeeting.country = LSSTRING(@"S");
  }
  
  if ([[dict objectForKey:kJSONRaceCard] isKindOfClass:[NSArray class]]) {
      int j = 0;
      for (NSDictionary *raceCardDict in [dict objectForKey:kJSONRaceCard]) {
          PPRaceCardObject *raceCardObject = [PPRaceCardObject objectFromDictionary:raceCardDict];
          RaceCard *card = [RaceCard findFirstByAttribute:@"guid" withValue:raceCardObject.guid];
          if (!card) {
              card = [RaceCard createInContext:moc];
          }
          card.title = raceCardObject.title;
          card.available = raceCardObject.available;
          card.guid = raceCardObject.guid;
          card.lastUpdated = raceCardObject.lastUpdated;
          card.index = @(j);
          card.raceMeeting = raceMeeting;
          j++;
      }
  }

  }

  [moc saveOnlySelfAndWait];

}

Here truncateAll not removing the data from the RaceMeeting MangedObjectModel if you know one please sort out this problem.