Set the properties of an NSObject from the values in an NSDictionary

Question

I would like to know if it is possible to set the properties of an NSObject from an NSDictionary without setting each one individually.

The property names in the NSObject match the key names in the NSDictionary.

Is there an easy way of doing this?.

possible duplicate of [Create NSObject from NSDictionary in objective-c](http://stackoverflow.com/questions/9349692/create-nsobject-from-nsdictionary-in-objective-c) — Abizern, Jul 26 '13 at 16:46
possible duplicate of [Automatically populate all properties of an Objective C instance with a dictionary](http://stackoverflow.com/questions/1760689/automatically-populate-all-properties-of-an-objective-c-instance-with-a-dictiona) — jscs, Jul 26 '13 at 17:57

BergQuester · Accepted Answer · 2013-07-26T19:09:57.707

4

Assuming the types for the values match, you want to use - (void)setValuesForKeysWithDictionary:(NSDictionary *)keyedValues NSNull values will be treated as nil.

edited Jul 26 '13 at 19:09

answered Jul 26 '13 at 16:45

BergQuester

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This is assuming you have the proper types stored in the dictionary. – Mike D Jul 26 '13 at 17:07
True, I'll make a note of that. – BergQuester Jul 26 '13 at 19:09

score 1 · Answer 2 · answered Aug 30 '13 at 01:34

I wrote a small library that automates this, it also handles conversion of dates https://github.com/aryaxt/OCMapper

It automatically converts NSDictionary to NSObject as long as all keys are the same as property names.

Customer *customer = [Customer objectFromDictionary:customerDictionary];
NSArray *customers = [Customer objectFromDictionary:listOfCustomersDictionary];

if the key and property names are not the same you can write mapping

[mappingProvider mapFromDictionaryKey:@"dob" toPropertyKey:@"dateOfBearth" forClass:[Customer class]];

Set the properties of an NSObject from the values in an NSDictionary

2 Answers2