commitEditingStyle : 데이터를 삭제하지만 행을 계속 표시합니다.

Question

tableView 행을 삭제하고 싶습니다. 데이터베이스에서 행을 삭제할 수 있지만 내 tableview의 행은 사라지지 않습니다. 감사합니다. !!! 는 Mayte

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { 

    if (editingStyle == UITableViewCellEditingStyleDelete) { 


     // Delete the row from the data source 
     PFUser *user = [self.allProducts objectAtIndex:indexPath.row]; 
     [_mipedido removeObject:[PFObject objectWithoutDataWithClassName:@"almacen"objectId:user.objectId]]; 
     [[PFUser currentUser] saveInBackground]; 


     NSMutableArray *pedido = [[NSMutableArray alloc] init]; 
     for (int i = 0; i <= 1; i++) 
     { 
      [pedido removeObject:[NSIndexPath indexPathForItem:i inSection:1]]; 
     } 

     [tableView beginUpdates]; 

     [tableView deleteRowsAtIndexPaths:pedido withRowAnimation:NO]; 

     [tableView endUpdates]; 
    } 

    [tableView reloadData]; 

} 

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 

    static NSString *CellIdentifier =@"editSnacksTableViewCell"; 
    editSnacksTableViewCell*cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; 

    if (cell == nil) { 
     NSArray *nib =[[NSBundle mainBundle] loadNibNamed:@"editSnacks" owner:self options:nil]; 
     cell = [nib objectAtIndex:0]; 
    } 

    PFUser *user = [self.allProducts objectAtIndex:indexPath.row]; 

    cell.precio.text = [NSString stringWithFormat:@"%f",[[precioProducto text] doubleValue]]; 

    cell.nombreProducto.text =user[@"nombreProducto"]; 

// cell.photoSnacks.image = [UIImage imageNamed:[thumbnails objectAtIndex:indexPath.row]]; 
// cell.descripcionSnakcs.text =[tableData objectAtIndex:indexPath.row]; 

    return cell; 
} 

-(void)viewWillAppear:(BOOL)animated { 

    [super viewWillAppear:YES]; 

    self.mipedido = [[PFUser currentUser] objectForKey:@"mipedido"]; 

    PFQuery *query = [self.mipedido query]; 
    // [query whereKey:@"nombreProducto" notEqualTo:self.currentUser.username]; 
    [query orderByAscending:@"nombreProducto"]; 
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) { 
     if (error) { 
      NSLog(@"Error %@ %@", error, [error userInfo]); 
     } 
     else { 
      self.allProducts =objects; 
      [self.tableView reloadData]; 
     } 
    }]; 

} 

Answer 1

데이터를 다시로드하고 시작하고 업데이트가 deleteRowsAtIndexPaths 때문에 필요하지 않습니다 할 수있는 tableview의 호출 :이 부분을 처리합니다. 당신이 포함 pedido로 잘못된 인덱스 경로 (pedido)를 제거하기 위해 빈 시작 가변 배열을하지 않는 시도로

또한

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { 

    if (editingStyle == UITableViewCellEditingStyleDelete) { 
     // Delete the row from the data source 
     PFUser *user = [self.allProducts objectAtIndex:indexPath.row]; 
     [_mipedido removeObject:[PFObject objectWithoutDataWithClassName:@"almacen"objectId:user.objectId]]; 
     [[PFUser currentUser] saveInBackground]; 


     NSMutableArray *pedido = [[NSMutableArray alloc] init]; 
     //Why use a loop? can't you just put 0 instead of i in the remove object? 
     for (int i = 0; i <= 1; i++) 
     { 
      //pedido is empty as it was just initiated. There is nothing to remove. 
      [pedido removeObject:[NSIndexPath indexPathForItem:i inSection:1]]; 
     } 
     //the NSMutableArray does not contain any index paths so it will not delete anything. 
     [tableView deleteRowsAtIndexPaths:pedido withRowAnimation:NO]; 
    } 
} 

, 데이터베이스에서 개체를 제거하지 않습니다 : 따라서 코드는 다음과 같이한다 모든 색인 경로. 따라서 tableView 행을 삭제하지 않습니다.

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { 

    if (editingStyle == UITableViewCellEditingStyleDelete) { 
     // Delete the row from the data source 
     PFUser *user = [self.allProducts objectAtIndex:indexPath.row]; 
     [_mipedido removeObject:[PFObject objectWithoutDataWithClassName:@"almacen"objectId:user.objectId]]; 
     [[PFUser currentUser] saveInBackground]; 
     //delete correct row from tableView 
     [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:NO]; 
    } 
}