User-friendly representation of keyPath expressions for NSPredicateEditor

FROM : Jarret Hardie
DATE : Sun Jan 20 18:47:27 2008

I'm creating NSPredicateEditor and NSPredicateEditorRowTemplates in 
code as the key paths for my left-hand expressions are dynamic and not 
known until run time. The row template is made using an array of key 
path expressions that look like:

[NSExpression expressionForKeyPath:[... lookup to get dynamic keypath 
string here ...]]

The new NSPredicateEditor view is a convenience dream, and the app 
works beautifully, but the left PopUpButton button that is rendered in 
the NSPredicateEditor view contains the literal key path 
"someKeyPath". In IB, it's easy to double-click on the pop-up button 
in the row template and provide a user-friendly substitution like "Not 
A Key Path Accessor".

Is there an efficient way to do this in code when I'm creating my row 
templates, or should I be subclassing  NSPredicateEditorRowTemplate to 
override templateViews?

Many thanks,
Jarret