Handy table view cells dequeuing + custom NIB support

DLBaseTableViewCell.h

//
//  DLBaseTableViewCell.h
//  Kawiky
//
//  Created by Denis Lebedev on 2/24/12.
//  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//

@interface DLBaseTableViewCell : UITableViewCell

+ (id)cellForTableView:(UITableView *)tableView;
+ (id)cellForTableView:(UITableView *)tableView fromNib:(UINib *)nib;
+ (NSString *)cellIdentifier;
+ (NSString *)nibName;
+ (UINib *)nib;

- (id)initWithCellIdentifier:(NSString *)cellID;

@end

DLBaseTableViewCell.m

//
//  DLBaseTableViewCell.m
//  Kawiky
//
//  Created by Denis Lebedev on 2/24/12.
//  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//

#import "DLBaseTableViewCell.h"

@implementation DLBaseTableViewCell

+ (id)cellForTableView:(UITableView *)tableView {
    NSString *cellID = [self cellIdentifier];
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];
    if (cell == nil) {
        cell = [[self alloc] initWithCellIdentifier:cellID];
    }
    return cell;
}

+ (id)cellForTableView:(UITableView *)tableView fromNib:(UINib *)nib {
    NSString *cellID = [self cellIdentifier];
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];
    if (cell == nil) {
        NSArray *nibObjects = [nib instantiateWithOwner:nil options:nil];
        NSAssert2(([nibObjects count] > 0) &&
                  [[nibObjects objectAtIndex:0] isKindOfClass:[self class]],
                  @"Nib '%@' does not appear to contain a valid %@",
                  [self nibName], NSStringFromClass([self class]));
        cell = [nibObjects objectAtIndex:0];
    }
    return cell;
}

+ (NSString *)cellIdentifier {
    return NSStringFromClass([self class]);
}

+ (UINib *)nib {
    NSBundle *classBundle = [NSBundle bundleForClass:[self class]];
    return [UINib nibWithNibName:[self nibName] bundle:classBundle];
}
+ (NSString *)nibName {
    return [self cellIdentifier];
}

- (id)initWithCellIdentifier:(NSString *)cellID {
    return [self initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellID];
}
@end