Instantiating Custom Class from NSDictionary

Question

I have a feeling that this is stupid question, but I\'ll ask anyway...

I have a collection of NSDictionary objects whose key/value pairs correspond to a cus

Answer 1

Assuming that your class conforms to the Key-Value Coding protocol, you could use the following: (defined as a category on NSDictionary for convenience):

// myNSDictionaryCategory.h:
@interface NSDictionary (myCategory)
- (void)mapPropertiesToObject:(id)instance
@end

// myNSDictionaryCategory.m:
- (void)mapPropertiesToObject:(id)instance
{
    for (NSString * propertyKey in [self allKeys])
    {
        [instance setValue:[self objectForKey:propertyKey]
                    forKey:propertyKey];
    }
}

And here's how you would use it:

#import "myNSDictionaryCategory.h"
//...
[someDictionary mapPropertiesToObject:someObject];