Databases
StackOverflow2013
Postsdbo
POCore Data save exception on NSDate
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCore Data save exception on NSDate
    primarykey
    data
    text
    <p>I've got this accessDate field, set as date type in the data model. I'm updating the accessDate with <code>object.accessDate = [NSDate date]</code> when accessing it.</p> <p>It is a multithreaded application, and I've done 2 implementations, one with a shared NSManagedObjectContext and appropriate locks, and one with multiple contexts and appropriate merges, both having this exception throwing sporadically.</p> <p>I've got NSZombieEnabled set in the process environment. I'm a bit out of ideas, so I'd be glad to hear some new suggestions.</p> <p>EDIT: I forgot to add that it only occurs on Mac OS X 10.6</p> <p>The exception is:</p> <pre><code>(gdb) po $rax -[__NSCFDate longLongValue]: unrecognized selector sent to instance 0x16ddf3020 </code></pre> <p>the object does not look that suspicious:</p> <pre><code>(gdb) po 0x16ddf3020 2012-07-18 18:11:35 +0200 (gdb) po [0x16ddf3020 class] __NSCFDate </code></pre> <p>and the backtrace:</p> <pre><code>(gdb) bt #0 0x00007fff8973deea in objc_exception_throw () #1 0x00007fff803bc110 in -[NSObject(NSObject) doesNotRecognizeSelector:] () #2 0x00007fff803348ef in ___forwarding___ () #3 0x00007fff80330a38 in __forwarding_prep_0___ () #4 0x00007fff831ad540 in -[NSSQLiteConnection execute] () #5 0x00007fff831f8e85 in -[NSSQLiteConnection updateRow:] () #6 0x00007fff831f801b in -[NSSQLConnection performAdapterOperation:] () #7 0x00007fff831f7f50 in -[NSSQLConnection performAdapterOperations:] () #8 0x00007fff831f7acb in -[NSSQLCore _performChangesWithAdapterOps:] () #9 0x00007fff831f680b in -[NSSQLCore performChanges] () #10 0x00007fff831f1259 in -[NSSQLCore saveChanges:] () #11 0x00007fff831b4c8b in -[NSSQLCore executeRequest:withContext:] () #12 0x00007fff831b4051 in -[NSPersistentStoreCoordinator(_NSInternalMethods) executeRequest:withContext:] () #13 0x00007fff831e8123 in -[NSManagedObjectContext save:] () </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. UScdelacroix
    1. UScdelacroix
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COAre you sure zombies are actually turned on? You've set it in your scheme under "Diagnostics" or using the Zombies instrument?
      singulars
      1. POCore Data save exception on NSDate
      1. USJesse Rusak
    2. COI'm pretty sure. It's set to YES in "Variables to be set in the environment:" in the executable window (Xcode 3). It does occasionally kick in when needed.
      singulars
      1. POCore Data save exception on NSDate
      1. UScdelacroix
    3. COYikes, 10.6? Sounds like a defect fixed in a later version of OS X?
      singulars
      1. POCore Data save exception on NSDate
      1. USJesse Rusak
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload