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andhapp/can_destroy.rb

Forked from spalladino/can_destroy.rb
Created February 7, 2012 18:24
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How to check if object can be destroyed if it has dependent restrict associations
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can_destroy.rb
class ActiveRecord::Base
def can_destroy?
self.class.reflect_on_all_associations.all? do |assoc|
assoc.options[:dependent] != :restrict || (assoc.macro == :has_one && self.send(assoc.name).nil?) || (assoc.macro == :has_many && self.send(assoc.name).empty?)
end
end
end
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