Added -/+(id)unarchiveObjectOfClasses to allow for more than one class to be unarchived. This is needed if you're unarchiving any custom classes with any member classes.

Author: apple-ihack-geek

Lockbox.h

@@ -30,6 +30,7 @@
 
 -(id)unarchiveObjectForKey:(NSString *)key DEPRECATED_MSG_ATTRIBUTE("Migrate to -unarchiveObjectOfClass:forKey:");;
 -(id)unarchiveObjectOfClass:(Class)cls forKey:(NSString *)key;
+-(id)unarchiveObjectOfClasses:(NSSet*)clsSet forKey:(NSString *)key;
 
 -(BOOL)setString:(NSString *)value forKey:(NSString *)key DEPRECATED_MSG_ATTRIBUTE("Migrate to -archiveObject:forKey:");
 -(BOOL)setString:(NSString *)value forKey:(NSString *)key accessibility:(CFTypeRef)accessibility DEPRECATED_MSG_ATTRIBUTE("Migrate to -archiveObject:forKey:accesibility");
@@ -60,6 +61,7 @@
 
 +(id)unarchiveObjectForKey:(NSString *)key DEPRECATED_MSG_ATTRIBUTE("Migrate to +unarchiveObjectofClass:forKey:");
 +(id)unarchiveObjectOfClass:(Class)cls forKey:(NSString *)key;
++(id)unarchiveObjectOfClasses:(NSSet*)clsSet forKey:(NSString *)key;
 
 +(BOOL)setString:(NSString *)value forKey:(NSString *)key DEPRECATED_MSG_ATTRIBUTE("Migrate to +archiveObject:forKey:");
 +(BOOL)setString:(NSString *)value forKey:(NSString *)key accessibility:(CFTypeRef)accessibility DEPRECATED_MSG_ATTRIBUTE("Migrate to +archiveObject:forKey:accesibility");

Lockbox.m

@@ -220,7 +220,7 @@ -(id)unarchiveObjectOfClass:(Class)cls forKey:(NSString *)key
 
     id object = nil;
     @try {
-        object = [NSKeyedUnarchiver unarchivedObjectOfClass:cls  // adjust class as needed
+        object = [NSKeyedUnarchiver unarchivedObjectOfClass:cls
                                                    fromData:data
                                                       error:&error];
         if (!object && error) {
@@ -234,6 +234,30 @@ -(id)unarchiveObjectOfClass:(Class)cls forKey:(NSString *)key
     return object;
 }
 
+-(id)unarchiveObjectOfClasses:(NSSet*)clsSet forKey:(NSString *)key
+{
+    NSData *data = [self dataForKey:key];
+    NSError *error = nil;
+    if (!data)
+        return nil;
+
+    id object = nil;
+    @try {
+        object = [NSKeyedUnarchiver unarchivedObjectOfClasses:clsSet
+                                                     fromData:data
+                                                        error:&error];
+        if (!object && error) {
+            DLog(@"Failed to unarchive object for key %@: %@", key, error);
+        }
+    }
+    @catch (NSException *exception) {
+        DLog(@"failed for key %@: %@", key, exception.description);
+    }
+
+    return object;
+}
+
+
 
 -(BOOL)setString:(NSString *)value forKey:(NSString *)key
 {
@@ -370,6 +394,11 @@ +(id)unarchiveObjectOfClass:(Class)cls forKey:(NSString *)key
     return [_lockBox unarchiveObjectOfClass:(Class)cls forKey:key];
 }
 
++(id)unarchiveObjectOfClasses:(NSSet*)clsSet forKey:(NSString *)key
+{
+    return [_lockBox unarchiveObjectOfClasses:clsSet forKey:key];
+}
+
 +(BOOL)setString:(NSString *)value forKey:(NSString *)key
 {
     return [_lockBox setString:value forKey:key];