From ffe8372fbfbfec9cf08af3f3db11d297682f1cca Mon Sep 17 00:00:00 2001
From: Neal Ehardt <nealehardt@gmail.com>
Date: Fri, 11 Jan 2013 14:50:40 -0600
Subject: [PATCH] MR_inContext: works on objects with temporary IDs

---
 .../NSManagedObject/NSManagedObject+MagicalRecord.m | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/MagicalRecord/Categories/NSManagedObject/NSManagedObject+MagicalRecord.m b/MagicalRecord/Categories/NSManagedObject/NSManagedObject+MagicalRecord.m
index f14e26b8d..67b951635 100644
--- a/MagicalRecord/Categories/NSManagedObject/NSManagedObject+MagicalRecord.m
+++ b/MagicalRecord/Categories/NSManagedObject/NSManagedObject+MagicalRecord.m
@@ -226,6 +226,19 @@ + (BOOL) MR_truncateAll
 - (id) MR_inContext:(NSManagedObjectContext *)otherContext
 {
     NSError *error = nil;
+    
+    if (self.objectID.isTemporaryID)
+    {
+        BOOL success = [self.managedObjectContext obtainPermanentIDsForObjects:@[self] error:&error];
+        if (!success)
+        {
+            [MagicalRecord handleErrors:error];
+            return nil;
+        }
+    }
+    
+    error = nil;
+    
     NSManagedObject *inContext = [otherContext existingObjectWithID:[self objectID] error:&error];
     [MagicalRecord handleErrors:error];