StackOverflow2013

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plurals

PO
primarykey
Id
9142274
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-02-04T16:15:10.630
FavoriteCount
0
LastActivityDate
2012-02-04T16:29:00.487
LastEditDate
2012-02-04T16:29:00.487
LastEditorUserId
438063
OwnerUserId
438063
ParentId
9137920
PostTypeId
2
Score
8
ViewCount
0
LastEditorDisplayName
text
Body
Ok, I've just woke up this morning with a good solution. What about this: Serialize the JSON using the option to receive Mutable Arrays and Dictionaries: <pre><code>NSMutableDictionary *rootDict = [NSJSONSerialization JSONObjectWithData:_receivedData options:NSJSONReadingMutableContainers error:&error]; ... </code></pre> Get a set of keys that have <code>[NSNull null]</code> values from the leafDict: <pre><code>NSSet *nullSet = [leafDict keysOfEntriesWithOptions:NSEnumerationConcurrent passingTest:^BOOL(id key, id obj, BOOL *stop) { return [obj isEqual:[NSNull null]] ? YES : NO; }]; </code></pre> Remove the filtered properties from your Mutable leafDict: <pre><code>[leafDict removeObjectsForKeys:[nullSet allObjects]]; </code></pre> Now when you call <code>fight.winnerID = [dict objectForKey:@"winner"];</code> winnerID is automatically going to be <code>(null)</code> or <code>nil</code> as opposed to <code><null></code> or <code>[NSNull null]</code>. Not relative to this, but I also noticed that it is better to use a <code>NSNumberFormatter</code> when parsing strings to NSNumber, the way I was doing was getting <code>integerValue</code> from a nil string, this gives me an undesired NSNumber of <code>0</code>, when I actually wanted it to be nil. Before: <pre><code>// when [leafDict valueForKey:@"round"] == nil fight.round = [NSNumber numberWithInteger:[[leafDict valueForKey:@"round"] integerValue]] // Result: fight.round = 0 </code></pre> After: <pre><code>__autoreleasing NSNumberFormatter* numberFormatter = [[NSNumberFormatter alloc] init]; fight.round = [numberFormatter numberFromString:[leafDict valueForKey:@"round"]]; // Result: fight.round = nil </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. PONSNull handling for NSManagedObject properties values
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USLucien
UserOwnerUserId
1. USLucien
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

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