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--
Ryan Bigg
On Tuesday, 1 March 2011 at 2:06 AM, niklas | brueckenschlaeger wrote:
> 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
> # Sorry, only way to remove validation...
> # Probably tightly coupled to AR 2.3.5
> (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
>
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