Block-based API Wrapper for Restkit (Requires A2DynamicDelegate)

RKObjectManager+Blocks.h

//
//  RKObjectManager+Blocks.h
//
//  Created by Ed McManus for Yardsale Inc. on 3/27/12
//  Learn more at https://getyardsale.com
//
//  Requires A2DynamicDelegate https://github.com/pandamonia/A2DynamicDelegate
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//  
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.
//

typedef void(^RKSuccessBlock)(RKObjectLoader* loader, NSArray* objects);
typedef void(^RKFailureBlock)(RKObjectLoader* loader, NSError* error);

@interface RKObjectManager (Blocks)

- (RKObjectLoader*)loadObjectsAtResourcePath:(NSString*)resourcePath onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;

- (RKObjectLoader*)objectLoaderForObject:(id<NSObject>)object method:(RKRequestMethod)method onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;

- (RKObjectLoader*)getObject:(id<NSObject>)object onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;

- (RKObjectLoader*)postObject:(id<NSObject>)object onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;

- (RKObjectLoader*)putObject:(id<NSObject>)object onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;

- (RKObjectLoader*)deleteObject:(id<NSObject>)object onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;

@end

RKObjectManager+Blocks.m

//
//  RKObjectManager+Blocks.m
//
//  Created by Ed McManus for Yardsale Inc. on 3/27/12
//  Learn more at https://getyardsale.com
//
//  Requires A2DynamicDelegate https://github.com/pandamonia/A2DynamicDelegate
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//  
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.
//

#import <objc/message.h>
#import <objc/runtime.h>

#import "RKObjectManager+Blocks.h"

@implementation RKObjectManager (Blocks)

- (RKObjectLoader*)loadObjectsAtResourcePath:(NSString*)resourcePath onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;
{
    NSString *protocolName = @"RKObjectLoaderDelegate";
    Protocol *protocol = objc_getProtocol(protocolName.UTF8String);
    
    RKObjectLoader * loader = [self objectLoaderWithResourcePath:resourcePath delegate:nil];
    A2DynamicDelegate * dynamicDelegate = [loader dynamicDelegateForProtocol:protocol];
    [dynamicDelegate implementMethod:@selector(objectLoader:didLoadObjects:) withBlock:successBlock];
    [dynamicDelegate implementMethod:@selector(objectLoader:didFailWithError:) withBlock:failureBlock];
    [loader setDelegate:(NSObject<RKObjectLoaderDelegate>*)dynamicDelegate];
    [loader send];
    
    return loader;
}

- (RKObjectLoader*)objectLoaderForObject:(id<NSObject>)object method:(RKRequestMethod)method onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;
{
    NSString *protocolName = @"RKObjectLoaderDelegate";
    Protocol *protocol = objc_getProtocol(protocolName.UTF8String);
    
    RKObjectLoader* loader = [self objectLoaderForObject:object method:method delegate:nil];
    A2DynamicDelegate * dynamicDelegate = [loader dynamicDelegateForProtocol:protocol];
    [dynamicDelegate implementMethod:@selector(objectLoader:didLoadObjects:) withBlock:successBlock];
    [dynamicDelegate implementMethod:@selector(objectLoader:didFailWithError:) withBlock:failureBlock];
    [loader setDelegate:(NSObject<RKObjectLoaderDelegate>*)dynamicDelegate];
    [loader send];
    
    return loader;
}

- (RKObjectLoader*)getObject:(id<NSObject>)object onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;
{
    return [self objectLoaderForObject:object method:RKRequestMethodGET onSuccess:successBlock onFailure:failureBlock];
}

- (RKObjectLoader*)postObject:(id<NSObject>)object onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;
{
    return [self objectLoaderForObject:object method:RKRequestMethodPOST onSuccess:successBlock onFailure:failureBlock];
}

- (RKObjectLoader*)putObject:(id<NSObject>)object onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;
{
    return [self objectLoaderForObject:object method:RKRequestMethodPUT onSuccess:successBlock onFailure:failureBlock];
}

- (RKObjectLoader*)deleteObject:(id<NSObject>)object onSuccess:(RKSuccessBlock)successBlock onFailure:(RKFailureBlock)failureBlock;
{
    return [self objectLoaderForObject:object method:RKRequestMethodDELETE onSuccess:successBlock onFailure:failureBlock];
}

@end