Howdy,
I've Core Data a lot in Objective-c and now I am trying to use it in MacRuby.
It occurs to me that I might need to create the to-many relationship accessors
just like you have to do in Objective-C.
To clarify: Suppose I have a data model that models a file structure and which
looks like this:
Folder{
name:string
parent<<-->Folder.subFolders
subFolders<-->>Folder.parent
files<-->>File.folder
}
File{
name:string
folder<<-->Folder.file
}
In Objective-C, I would normally have methods in the `Folder` class that would
look like:
addSubFoldersObject:
removeSubFoldersObject:
addSubFoldersObjects:
removeSubFoldersObjects:
The methods themselves would use look something like:
- (void)addSubFoldersObject:(FetchedPropertyExtractor *)value {
NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
[self willChangeValueForKey:@"SubFolders"
withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
[[self primitiveValueForKey:@"SubFolders"] addObject:value];
[self didChangeValueForKey:@"SubFolders"
withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
[changedObjects release];
}
Do you have to do the same thing in MacRuby or will the normal ruby set
operations suffice?
Thanks,
Shannon Love a.k.a TechZen
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