FetchedResultsControllerTableViewDataSource. Please stop writing this over and over again.

FetchedResultsControllerTableViewDataSource.h

//
//  FetchedResultsControllerTableViewDataSource.h
//  Flock
//
//  Created by Matthew Bischoff on 2/14/15.
//  Copyright (c) 2015 Lickability. All rights reserved.
//

@import Foundation;
@import CoreData;
@import UIKit;

typedef BOOL(^TableViewDataSourceBooleanBlock)(UITableView *tableView, NSIndexPath *indexPath);
typedef NSString *(^TableViewDataSourceSectionFooterBlock)(UITableView *tableView, NSInteger section);
typedef void(^TableViewDataSourceEditBlock)(UITableView *tableView, UITableViewCellEditingStyle editingStyle, NSIndexPath *indexPath);
typedef UITableViewCell *(^TableViewDataSourceCellBlock)(UITableView *tableView, NSIndexPath *indexPath, id object);


@interface FetchedResultsControllerTableViewDataSource : NSObject <UITableViewDataSource>

- (instancetype)initWithFetchedResultsController:(NSFetchedResultsController *)fetchedResultsController
                                       cellBlock:(TableViewDataSourceCellBlock)cellBlock NS_DESIGNATED_INITIALIZER;

@property (nonatomic, weak) NSFetchedResultsController *fetchedResultsController;

@property (nonatomic) BOOL showsSectionTitles;

@property (nonatomic, copy) TableViewDataSourceBooleanBlock canEditRowBlock;
@property (nonatomic, copy) TableViewDataSourceBooleanBlock canMoveRowBlock;
@property (nonatomic, copy) TableViewDataSourceSectionFooterBlock footerTitleBlock;
@property (nonatomic, copy) TableViewDataSourceEditBlock commitEditingStyleBlock;

@end

FetchedResultsControllerTableViewDataSource.m

//
//  FetchedResultsControllerTableViewDataSource.m
//  Flock
//
//  Created by Matthew Bischoff on 2/14/15.
//  Copyright (c) 2015 Lickability. All rights reserved.
//

#import "FetchedResultsControllerTableViewDataSource.h"

@interface FetchedResultsControllerTableViewDataSource ()

@property (nonatomic, copy) UITableViewCell * (^cellBlock)(UITableView *tableView, NSIndexPath *indexPath, id object);

@end

@implementation FetchedResultsControllerTableViewDataSource

- (instancetype)initWithFetchedResultsController:(NSFetchedResultsController *)fetchedResultsController cellBlock:(TableViewDataSourceCellBlock)cellBlock {
    self = [super init];
    
    NSParameterAssert(fetchedResultsController);
    NSParameterAssert(cellBlock);
    
    if (self) {
        _fetchedResultsController = fetchedResultsController;
        _cellBlock = [cellBlock copy];
    }
    
    return self;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return self.fetchedResultsController.sections.count;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    id <NSFetchedResultsSectionInfo> sectionInfo = self.fetchedResultsController.sections[section];
    return sectionInfo.numberOfObjects;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    id object = [self.fetchedResultsController objectAtIndexPath:indexPath];
    if (self.cellBlock) {
        return self.cellBlock(tableView, indexPath, object);
    }
    
    return nil;
}

- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
    return self.fetchedResultsController.sectionIndexTitles;
}

- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index {
    return [self.fetchedResultsController sectionForSectionIndexTitle:title atIndex:index];
}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
    id <NSFetchedResultsSectionInfo> sectionInfo = self.fetchedResultsController.sections[section];
    return sectionInfo.name;
}

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
    if (self.canEditRowBlock) {
        return self.canEditRowBlock(tableView, indexPath);
    }
    return NO;
}

- (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section {    
    if (self.footerTitleBlock) {
        return self.footerTitleBlock(tableView, section);
    }
    return nil;
}

- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
    if (self.canMoveRowBlock) {
        self.canMoveRowBlock(tableView, indexPath);
    }
    
    return NO;
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (self.commitEditingStyleBlock) {
        self.commitEditingStyleBlock(tableView, editingStyle, indexPath);
    }
}

@end