使用NSDictionary内容创建NSManagedObject

#import <CoreData/CoreData.h>

- (NSManagedObject *)createObjectWithDictionary:(NSDictionary *)dictionary
                                     entityName:(NSString *)entityName
                                    inContext:(NSManagedObjectContext *)context {
    NSManagedObject *managedObject = [NSEntityDescription insertNewObjectForEntityForName:entityName inManagedObjectContext:context];
    
    for (NSString *key in dictionary.allKeys) {
        id value = dictionary[key];
        if ([value isKindOfClass:[NSString class]] ||
            [value isKindOfClass:[NSNumber class]] ||
            [value isKindOfClass:[NSDate class]] ||
            [value isKindOfClass:[NSData class]]) {
            [managedObject setValue:value forKey:key];
        } else if ([value isKindOfClass:[NSArray class]]) {
            [managedObject setValue:[self transformArray:value] forKey:key];
        } else if ([value isKindOfClass:[NSDictionary class]]) {
            [managedObject setValue:[self transformDictionary:value] forKey:key];
        }
    }
    
    return managedObject;
}

- (NSArray *)transformArray:(NSArray *)array {
    NSMutableArray *transformedArray = [NSMutableArray arrayWithCapacity:array.count];
    
    for (id value in array) {
        if ([value isKindOfClass:[NSString class]] ||
            [value isKindOfClass:[NSNumber class]] ||
            [value isKindOfClass:[NSDate class]] ||
            [value isKindOfClass:[NSData class]]) {
            [transformedArray addObject:value];
        } else if ([value isKindOfClass:[NSArray class]]) {
            [transformedArray addObject:[self transformArray:value]];
        } else if ([value isKindOfClass:[NSDictionary class]]) {
            [transformedArray addObject:[self transformDictionary:value]];
        }
    }
    
    return transformedArray;
}

- (NSDictionary *)transformDictionary:(NSDictionary *)dictionary {
    NSMutableDictionary *transformedDictionary = [NSMutableDictionary dictionaryWithCapacity:dictionary.count];
    
    for (NSString *key in dictionary.allKeys) {
        id value = dictionary[key];
        if ([value isKindOfClass:[NSString class]] ||
            [value isKindOfClass:[NSNumber class]] ||
            [value isKindOfClass:[NSDate class]] ||
            [value isKindOfClass:[NSData class]]) {
            [transformedDictionary setValue:value forKey:key];
        } else if ([value isKindOfClass:[NSArray class]]) {
            [transformedDictionary setValue:[self transformArray:value] forKey:key];
        } else if ([value isKindOfClass:[NSDictionary class]]) {
            [transformedDictionary setValue:[self transformDictionary:value] forKey:key];
        }
    }
    
    return transformedDictionary;
}

NSDictionary *dictionary = @{@"name": @"John Doe", @"age": @30};
NSManagedObject *managedObject = [self createObjectWithDictionary:dictionary entityName:@"User" inContext:self.managedObjectContext];