different validation based on which action was called for the
controller. So you can have a validation based on the 'add' action
which is completely different from the validation you might use on
'edit' or 'update'. It also shows how to implement custom/dynamic
validation that executes code which means you would be able to do some
other Model lookups to verify against.
I was headed down the same path and have come to realize that most of
what I thought I was going to need custom code validation for was
dealt with nicely by the the different action validations.
This is an article by Jonathan Snook well written and easy to
implement.
http://snook.ca/archives/cakephp/multiple_validation_sets_cakephp/
Lunar Draco
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