Ruby on Rails
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class Conversation < ActiveRecord::Base
enum status: [ :active, :archived ]
end# conversation.update! status: 0
conversation.active!
conversation.active? # => true
conversation.status # => "active"
# conversation.update! status: 1
conversation.archived!
conversation.archived? # => true
conversation.status # => "archived"
# conversation.update! status: 1
conversation.status = "archived"
# conversation.update! status: nil
conversation.status = nil
conversation.status.nil? # => true
conversation.status # => nil
#Автоскоупы модели для выборки по енум полю
Conversation.active
Conversation.archivedcreate_table :conversations do |t|
t.column :status, :integer, default: 0
end