(sorry for misposting this to rubyonrails-core earlier)
Today I tried to remove (actually overwrite) a validation from a model, from within a plugin.
This was the original validation: validates_length_of :login, :maximum => 30
This was the only code I could come up with to replace it:
def self.included(base) base.class_eval do @validate_callbacks.delete_if { |callback| begin (callback.method.respond_to?(:binding)) && (eval("attrs", callback.method.binding).first == :login) && (callback.options[:maximum] == 30) rescue NameError false end }
validates_length_of(:login, :maximum => 75) end
Now in this case I could also have changed the options[:maximum] on the callback, but either way - is there a cleaner way?
-- niklas
