I don't think there's anything wrong combining messages into a chain
when you only need one variable from it. With the well-worded method
names common with Cocoa it's not too hard to see what the chain is
doing. Sometimes having a bunch of placeholder variables on each line
can look more messy and confusing than one line of chained messages.
On Apr 14, 2008, at 8:53 PM, Adam Gerson wrote:
In cocoa its very tempting to write a single line of code like:
NSManagedObject *selectedTreeObject = [[[[[self delegate]
mainWindowController] treeController] selectedObjects]
objectAtIndex:0];
or to flush it out in to individual lines:
NSWindowController *mainWindow = [[self delegate]
mainWindowController];
NSTreeController *treeController = [mainWindow treeController];
NSArray *selectedTreeObjects = [treeController selectedObjects];
NSManagedObject *selectedTreeObject = [selectedTreeObjects
objectAtIndex:0];
I am looking for some guidance on best practices in a situation with a
lot of nested calls like this. If ultimately the only value I care
about is the final one, selectedTreeObject, whats the best way to go
about getting it? I know "best" is a subjective word. Interested to
hear all of your opinions.
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