NSObject category for describing the keys and values of an object.

NSObject+LUBDescription.h

//
//  NSObject+LUBDescription.h
//
//  Created by Bryan Luby on 5/5/14.
//  Copyright (c) 2014 Bryan Luby. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSObject (LUBDescription)

///Returns a dictionary description of all property keys and values for an object.
- (NSString *)lub_description;

@end

NSObject+LUBDescription.m

//
//  NSObject+LUBDescription.m
//
//  Created by Bryan Luby on 5/5/14.
//  Copyright (c) 2014 Bryan Luby. All rights reserved.
//

#import "NSObject+LUBDescription.h"
#import <objc/runtime.h>

@implementation NSObject (LUBDescription)

- (NSString *)lub_description
{
    NSMutableDictionary *stateDictionary = [NSMutableDictionary dictionary];
    
    Class aClass = [self class];
    
    while (aClass != [NSObject class]) {
        unsigned int propertyCount = 0;
        objc_property_t *properties = class_copyPropertyList(aClass, &propertyCount);
        
        if (propertyCount) {
            for (int i = 0; i < propertyCount; i++) {
                objc_property_t property = properties[i];
                
                @try {
                    NSString *propertyKey = [NSString stringWithUTF8String:property_getName(property)];
                    stateDictionary[propertyKey] = [self valueForKey:propertyKey];
                } @catch (NSException *exception) {}
            }
        }
        
        free(properties);
        aClass = [aClass superclass];
    }
    
    return [[stateDictionary copy] description];
}

@end