def to_geocodeable_s
      a = [street_address, district, city, state, zip, country_code].compact
      a.delete_if { |e| !e || e == '' }
      a.join(', ')
    end
def to_geocodeable_s
      a = [street_address, district, city, state, zip, country_code].compact
      a.delete_if { |e| !e || e == '' }
      a.join(', ')
    end
Returns a comma-delimited string consisting of the street address, city,
 state, zip, and country code.  Only includes those attributes that are
 non-blank.