Re: Having problem with fetch request in NSDocument based application
Re: Having problem with fetch request in NSDocument based application
- Subject: Re: Having problem with fetch request in NSDocument based application
- From: Clayton Leitch <email@hidden>
- Date: Fri, 04 Sep 2009 19:32:42 -0400
URL is correct and entity is not nil.
On Sep 4, 2009, at 12:55 PM, Brent Gulanowski wrote:
So, all the other objects leading to the fetch execute look OK? Your
context isn't nil? Does your context actually have the right store
coordinator with the right store URL? Does NSEntityDescription return
an entity, and not nil? Does your context have a managed object model?
On Fri, Sep 4, 2009 at 9:47 AM, Clayton Leitch<email@hidden>
wrote:
Here is the code in MyDocument:
-(IBAction)calculateStat:(id)sender{
fetchedObjects = nil;
context = [self managedObjectContext];
fetchRequest = [[NSFetchRequest alloc] init];
entity = [NSEntityDescription entityForName:@"Measurement"
inManagedObjectContext:context];
[fetchRequest setEntity:entity];
fetchedObjects = [context executeFetchRequest:fetchRequest
error:&error];
if (fetchedObjects == nil) {
NSLog(@"error");
[errorMessage setStringValue:@"no objects"];
}else {
[errorMessage setIntValue:[fetchedObjects count]];
}
[fetchRequest release];
The fetchedObjects count is always 0. Any idea what silly thing I
forgot.
Thanks
--
Brent Gulanowski
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