31 lines
506 B
Ruby
31 lines
506 B
Ruby
class Unit < ActiveRecord::Base
|
|
belongs_to :project
|
|
|
|
# https://en.wikipedia.org/wiki/International_System_of_Units
|
|
enum group: {
|
|
number: 0,
|
|
share: 1,
|
|
|
|
length: 10,
|
|
mass: 11,
|
|
time: 12,
|
|
temperature: 13,
|
|
|
|
volume: 20,
|
|
density: 21,
|
|
ndensity: 22,
|
|
|
|
frequency: 30,
|
|
velocity: 31,
|
|
flow: 32,
|
|
|
|
energy: 30,
|
|
|
|
pressure: 40
|
|
}
|
|
|
|
validates :project, associated: true
|
|
validates :name, :shortname, presence: true
|
|
validates :group, inclusion: groups.keys
|
|
end
|