class ActiveRecord::ConnectionAdapters::PostgreSQL::OID::Cidr

def cast_value(value)
  if value.nil?
    nil
  elsif String === value
    begin
      IPAddr.new(value)
    rescue ArgumentError
      nil
    end
  else
    value
  end
end

def changed?(old_value, new_value, _new_value_before_type_cast)
  !old_value.eql?(new_value) || !old_value.nil? && old_value.prefix != new_value.prefix
end

def serialize(value)
  if IPAddr === value
    "#{value}/#{value.prefix}"
  else
    value
  end
end

def type
  :cidr
end

def type_cast_for_schema(value)
  # If the subnet mask is equal to /32, don't output it
  if value.prefix == 32
    "\"#{value}\""
  else
    "\"#{value}/#{value.prefix}\""
  end
end