AR::Relation with attr_encrypted monkey patch

gistfile1.rb

module AttrEncryptedRelation
  def self.included(base)
    base.class_eval do
      alias_method_chain :build_where, :attr_encrypted
    end
  end

  private

  def build_where_with_attr_encrypted(opts, other = [])
    if opts.is_a? Hash
      @klass.encrypted_attributes.each do |attribute, encryption_information|
        if opts[attribute]
          opts[attribute] = @klass.encrypt(attribute, opts[attribute])
          opts[encryption_information[:attribute]] = opts.delete(attribute)
        end
      end
    end

    build_where_without_attr_encrypted(opts, other)
  end
end

ActiveRecord::Relation.send :include, AttrEncryptedRelation