RestKit RKObjectManager Setup

HLPlaceResourceManager.h

//
//  HLPlaceResourceManager.h
//  HeyLets2
//
//  Created by Alex Bush on 11/18/14.
//  Copyright (c) 2014 HeyLets. All rights reserved.
//

#import <Foundation/Foundation.h>

@class CDPlace;

@interface HLPlaceResourceManager : NSObject
+ (id)sharedInstance;

- (void)fetchPlaceWithID:(NSNumber *)placeID
                 success:(void (^)(CDPlace *place))success
                 failure:(void (^)(NSError *error))failure;
@end

HLPlaceResourceManager.m

//
//  HLPlaceResourceManager.m
//  HeyLets2
//
//  Created by Alex Bush on 11/18/14.
//  Copyright (c) 2014 HeyLets. All rights reserved.
//

#import "HLPlaceResourceManager.h"
#import "APIresources.h"
#import "UserProfileMan.h"
#import "CDPlace.h"
#import "CDPlace+mapping.h"
#import "LocationMan.h"

@implementation HLPlaceResourceManager

+ (id)sharedInstance {
    static HLPlaceResourceManager *__sharedInstance;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        __sharedInstance = [[self alloc] init];
        
        [__sharedInstance setupResponseDescriptors];
    });
    
    return __sharedInstance;
}

- (void)fetchPlaceWithID:(NSNumber *)placeID
                 success:(void (^)(CDPlace *place))success
                 failure:(void (^)(NSError *error))failure
{
    
    [[HLRestKitManager sharedManager] getObjectsAtPath:[self buildPlacePathwithID:placeID]
                                           parameters:[self buildParamsForGETPlaceRequest]
                                              success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
                                                  
                                                  CDPlace *place = mappingResult.dictionary[@"place"][0];
                                                  
                                                  if (success)
                                                      success(place);
                                                  
                                              } failure:^(RKObjectRequestOperation *operation, NSError *error) {
                                                  
                                                  if (failure)
                                                      failure(error);
                                                  
                                              }];
    
}

- (NSString *)buildPlacePathwithID:(NSNumber *)placeID {
    return [NSString stringWithFormat:@"place/%@", placeID];
}

- (NSDictionary *)buildParamsForGETPlaceRequest
{
    return @{
             @"lat": [LocationMan get].lat,
             @"lon": [LocationMan get].lon
             };
}

- (void)setupResponseDescriptors {
    
    RKResponseDescriptor *placeResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:[CDPlace responseMapping]
                                                                                                 method:RKRequestMethodGET
                                                                                            pathPattern:API_GET_PLACE
                                                                                                keyPath:API_PLACE_ROOTKEYPATH
                                                                                            statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
    
    [[RKObjectManager sharedManager] addResponseDescriptor:placeResponseDescriptor];
}

@end

HLRestKitManager.h

@interface HLRestKitManager : RKObjectManager
+ (instancetype)sharedManager;

- (void)setupRouters;
- (void)setupRequestDescriptors;
- (void)setupResponseDescriptors;

- (NSManagedObjectContext *)newChildManagedObjectContext;

@en

HLRestKitManager.m

//
//  HLBaseObjectManager.m
//  HeyLets2
//
//  Created by Alex Bush on 11/13/14.
//  Copyright (c) 2014 HeyLets. All rights reserved.
//

#import "HLRestKitManager.h"
#import <RestKit/RestKit.h>

#define SQLITE_DB_NAME @"HeyLets.sqlite"

@implementation HLRestKitManager

+ (instancetype)sharedManager {
    static HLRestKitManager *sharedManager = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        NSURL *url = [NSURL URLWithString:API_BASEURL];
        
        sharedManager = [self managerWithBaseURL:url];
        sharedManager.requestSerializationMIMEType = RKMIMETypeJSON;
        
        [[self HTTPClient] setDefaultHeader:API_PARAMNAME_USERTOKEN value:kUserToken];
        [sharedManager setupPersistanceCoordinator];
        [sharedManager setupRouters];
        [sharedManager setupRequestDescriptors];
        [sharedManager setupResponseDescriptors];
    });
    
    return sharedManager;
}

- (void)setupPersistanceCoordinator {
    
    NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"HeyLets" withExtension:@"momd"];
    
    NSManagedObjectModel *managedObjectModel = [[[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL] mutableCopy];
    NSPersistentStoreCoordinator *persistentStore = [self setupPersistentStoreCoordinatorToModel:managedObjectModel];
    
    RKManagedObjectStore *managedObjectStore = [[RKManagedObjectStore alloc] initWithPersistentStoreCoordinator:persistentStore];
    
    [managedObjectStore createManagedObjectContexts];

    self.managedObjectStore = managedObjectStore;
    [RKManagedObjectStore setDefaultStore:managedObjectStore];
}

- (NSPersistentStoreCoordinator *)setupPersistentStoreCoordinatorToModel:(NSManagedObjectModel*)model {
    
    NSString *storePath = [RKApplicationDataDirectory() stringByAppendingPathComponent:SQLITE_DB_NAME];
    NSURL *storeURL = [NSURL fileURLWithPath:storePath];
    
    NSError *error = nil;
    
    
    NSPersistentStoreCoordinator* persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:model];
    //Setup lightweight migration options
    NSDictionary *options = @{
                              NSMigratePersistentStoresAutomaticallyOption : @YES,
                              NSInferMappingModelAutomaticallyOption : @YES
                              };
    
    if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:options error:&error]) {
        
        NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
        abort();
    }
    
    return persistentStoreCoordinator;
}

- (void)setupRouters {}

- (void)setupRequestDescriptors {}

- (void)setupResponseDescriptors {}

- (NSManagedObjectContext *)newChildManagedObjectContext {
    NSManagedObjectContext *managedObjectContext = [[RKManagedObjectStore defaultStore] newChildManagedObjectContextWithConcurrencyType:NSPrivateQueueConcurrencyType
                                                                                                                          tracksChanges:YES];
    return managedObjectContext;
}

@end