I have many occasions when a model's property needs to be transformed
to another type for use in a view. In this case I have a string of
pipe separated values that need to be transformed into a
NSMutableArray, manipulated in the interface and then converted back
to the pipe separated string before saving the model. Should this be
in the model or in the controller or are there no hard set rules?
FWIW: NSValueTransformer, for some reason, does not perform/call the
reverse transformation back to a string when an array controller is
bound to my model's property... it will display the transformed value
but like others I found it does not reverse the array back to a string.
Thanks
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