StackOverflow2013

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plurals

PO
primarykey
Id
1049450
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2009-06-26T14:29:03.217
FavoriteCount
0
LastActivityDate
2009-06-27T19:48:24.727
LastEditDate
2009-06-27T19:48:24.727
LastEditorUserId
120292
OwnerUserId
120292
ParentId
1048362
PostTypeId
2
Score
5
ViewCount
0
LastEditorDisplayName
text
Body
First off, since you're using JSON, I'm hoping you've already found <a href="http://github.com/blakeseely/bsjsonadditions/" rel="nofollow noreferrer">BSJSONAdditions</a> and/or <a href="http://code.google.com/p/json-framework/" rel="nofollow noreferrer">json-framework</a>, both of them open-source projects for parsing JSON into native Cocoa structures for you. <a href="http://zachwaugh.com/2009/01/how-to-use-json-in-cocoaobjective-c/" rel="nofollow noreferrer">This blog post</a> gives an idea of how to use the latter to get an NSDictionary from a JSON string. The problem then becomes one of finding the matching values in the dictionary. I'm not aware of a single method that does what you're looking for — the Cocoa frameworks are quite powerful, but are designed to be very generic and flexible. However, it shouldn't be too hard to put together in not too many lines... (Since you're programming on iPhone, I'll use fast enumeration to make the code cleaner.) <pre><code>NSDictionary* jsonDictionary = ... NSDictionary* innerDictionary; NSArray* requiredIDs = ... NSMutableDictionary* matches = [NSMutableDictionary dictionary]; for (id key in jsonDictionary) { innerDictionary = [jsonDictionary objectForKey:key]; if ([requiredIDs containsObject:[innerDictionary objectForKey:@"id"]]) [matches setObject:[innerDictionary objectForKey:@"name"] forKey:[innerDictionary objectForKey:@"id"]]; } </code></pre> This code may have typos, but the concepts should be sound. Also note that the call to <code>[NSMutableDictionary dictionary]</code> will return an autoreleased object.
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1. POiPhone NSArray from Dictionary of Dictionary values
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1. PTAnswer
UserLastEditorUserId
1. USQuinn Taylor
UserOwnerUserId
1. USQuinn Taylor
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1. POiPhone NSArray from Dictionary of Dictionary values
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3. VO
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