Bindings/archiving: NSMutableDictionary errors
Bindings/archiving: NSMutableDictionary errors
- Subject: Bindings/archiving: NSMutableDictionary errors
- From: Mike Carter <email@hidden>
- Date: Wed, 4 May 2005 22:12:07 -0700
Hello all.
I have a non-document Cocoa app that has at it's core a controller
object with 2 mutable arrays that hold a collection of objects. I am
writing this graph out to a file in the user's Application Data
directory. When I create the objects through the main window, I can
change all the settings as expected. When I start the app the next
time, I load in the object graph and set the 2 arrays. From that
point on, I can't make any changes to the two arrays. I get the
following error:
2005-05-04 20:55:47.592 CCLS Route[4962] *** -[NSCFDictionary
setObject:forKey:]: mutating method sent to immutable object
I can, however, make changes to a couple other objects associated
with the arrays. All the data is preserved correctly, just immutable.
@interface AppController : NSObject
{
// model
NSMutableArray *routes; // array of
routelists
NSMutableArray *emps; // array of
employees
[...]
All of my data model objects use a NSMutableDictionary to store
instance variables:
- (id) init {
if( self = [super init] ) {
NSArray * keys = [NSArray arrayWithObjects: @"name",
@"owner", nil];
NSArray * values = [NSArray arrayWithObjects: @"Route list",
[Employee employee], nil];
properties = [[NSMutableDictionary alloc] initWithObjects:
values forKeys: keys];
jobs = [[NSMutableArray alloc] init];
}
return self;
}
Where should I start looking for this error? When I initially input
the data, there are no problems changing any of the values.
All of the key-value glue is made through bindings.
Thanks!
_________________________
Mike Carter
Aviate.Org :: Systems Admin
iChat: PilotMike :: PGP-0x71E5B44C
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