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POPFUser throwing NSInternalInconsistencyException when calling objectForKey after fetchAllIfNeeded
 

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  1. POPFUser throwing NSInternalInconsistencyException when calling objectForKey after fetchAllIfNeeded
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    <p>I have two additional columns on my PFUser "firstName" and "lastName". They are saving properly; I can see the data in the data browser.</p> <p>I have another PFObject "class" that has a property with a NSArray of PFUsers. I use the class method <strong>+fetchAllIfNeededInBackground:block:</strong> on PFObject to fetch the array of PFUsers. In the callback block, I call objectForKey: on each of the PFUsers in the array, but I access them through the owning PFObject.</p> <pre><code>// invited is the NSArray of PFUsers self.whoCell.mainLabel.text = [[self.plan.invited objectAtIndex:0] objectForKey:@"firstName"]; </code></pre> <p>Debugger outputs this at a breakpoint right before the objectForKey call:</p> <pre><code>(lldb) po self.plan.invited (NSArray *) $4 = 0x06e62a60 &lt;__NSArrayM 0x6e62a60&gt;( &lt;PFUser:GCCdPjCU2J&gt; { firstName = Fake; lastName = Account; username = yyajnbafv53qw4yhjm9sfoiis; } ) </code></pre> <p><strong>Edit:</strong> adding implementation of self.plan.invited because the above is misleading.</p> <pre><code>- (NSArray*)invited { // self.dataSource is a PFObject* return [self.dataSource objectForKey:INVITED_PROP]; } </code></pre> <p>Yet when the above call it made to <strong>objectForKey:</strong> this exception is thrown:</p> <pre><code>'NSInternalInconsistencyException', reason: 'Key "firstName" has no data. Call fetchIfNeeded before getting its value.' </code></pre> <p><strong>Edit:</strong> Accessing the array of fetchedObjects that is passed to the block callback for <strong>+fetchAllIfNeededInBackground</strong> doesn't throw, but accessing the actual array that was originally passed to <strong>+fetchAllIfNeededInBackground</strong> throws.</p> <p>Calling fetchIfNeeded before the call solves the problem, but why? The data is already there. Do I miss understand <strong>+fetchAllIfNeededInBackground</strong> in that it DOES NOT updated the PFObject that owns to collection of PFUsers?</p>
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    1. USHéctor Ramos
    1. USsquinlan
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      1. VTUpMod
    2. VO
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    1. COHard to say, since the Parse SDK doesn't include source and the docs don't say anything about fetchAll not being recursive or transitive. Might be good question to ask directly of Parse support: new startups usually help you pretty fast.
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      1. USckhan
    2. CO@ckhan good idea. will do.
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      1. USsquinlan
 

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