Method: Attributor::Hash.add_requirement

Defined in:
lib/attributor/types/hash.rb

.add_requirement(req) ⇒ Object 



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# File 'lib/attributor/types/hash.rb', line 161

def self.add_requirement(req)
  @requirements << req
  return unless req.attr_names
  non_existing = req.attr_names - attributes.keys
  unless non_existing.empty?
    raise "Invalid attribute name(s) found (#{non_existing.join(', ')}) when defining a requirement of type #{req.type} for #{Attributor.type_name(self)} ." \
          "The only existing attributes are #{attributes.keys}"
  end
end