module ValidatesUniquenessViaAssociation
Constants
- VERSION
Public Instance Methods
validates_uniqueness_via_association(attribute, association, message: :taken, associated: nil)
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# File lib/validates_uniqueness_via_association.rb, line 10 def validates_uniqueness_via_association(attribute, association, message: :taken, associated: nil) validate do siblings = send(association).send(associated || self.class.name.underscore.pluralize) + [self] siblings.uniq! errors.add attribute, message if siblings.map(&attribute.to_sym).uniq! end end