Class: Okei::Unit

Inherits:

ActiveRecord::Base

Object
ActiveRecord::Base
Okei::Unit

show all

Includes:: Uuids::Base

Defined in:: app/models/okei/unit.rb

Overview

Stores and validates units of measure.

Attributes:

uuids: list of Units::Uuid objects assigned (referred to) the unit.
code: literal cyrillic code (“КМ/Ч”).
name: name of the unit (“Километры в час”).
num: numeric code of the unit following the OKEI (“007”).
int_code: a literal international code of the unit (“KMH”).
base: literal cyrillic code of the basic unit of measure (“М/С”).
factor: float number of basic units in a current unit (0.28).
measure: the name of measurement (“СКОРОСТЬ”) used for filtering units.

Methods:

#uuid: returns value of the first uuids assigned to the unit.
.by_uuid(value): selects units by a given UUID.

The first UUID can be set manually if necessary (when db populated from the outer list). Otherwise it will be assigned by default on the unit creation.

Examples:

unit = Unit.new(
  name: "Километры в час", code: "КМ/Ч", num: "007", int_code: "KMH",
  base: "М/С", factor: 0.28, measure: "СКОРОСТЬ"
  uuid: "9ac7e74a-d51a-424c-8fcd-71b0b55f6658"
)

Constant Summary collapse

NUM_FORMAT = Format of OKEI numeric codes (three digits).

/\A\d{3}\z/