🤔 Situation & Motivation
Master data that is not so many records and not need to store into RDB because of the performance.
How we can store it in the code?
🦄 General solution
class Hoge
module TYPE
A = 1
B = 2
TYPE_NAMES = {
A = 'alpha',
B = 'beta'
}
def self.keys
TYPE_NAMES.keys
end
def self.type_names
TYPE_NAMES.value
end
end
end
👍 Enum directory solution
This is not the usual way, but it's ok for migration of the version.
Code template
app/enums/v2/status_enum.rb
app/enums/v2/position_enum.rb
module V2::StatusEnum
GREAT = 1
NOMAL = 2
BAD = 3
STATUS_NAMES = {
GREAT => 'GREAT',
NOMAL => 'NOMAL',
BAD => 'BAD'
}
end
module V2::PositionEnum
BOSS = 1
NOMAL = 2
PLAYER = 3
STATUS_NAMES = {
BOSS => 'BOSS',
NOMAL => 'NOMAL',
PLAYER => 'PLAYER'
}
end
Usage
user = User.where(status: V2::StatusEnum::GREAT)
<%= V2::StatusEnum::STATUS_NAMES[user.status] %>
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