cheatsheets/rails-i18n.md

title	layout
Rails i18n	default

Basics

t('my.messages.hello')

t(:hello, scope: 'my.messages')
t(:hello, scope: [:my, :messages])

t('my.messages.hello', default: "Hello")

Plural

I18n.backend.store_translations :en, inbox: {
    one: 'one message',
    other: '%{count} messages'
}
I18n.translate :inbox, count: 1  # => 'one message'
I18n.translate :inbox, count: 2  # => '2 messages'

Time

en:
  date:
    formats:
      default: "%Y-%m-%d"
      short: "%b %d"
  time:
    formats:
      default: "%a, %d %b %Y %H:%M:%S %z"
      short: "%d %b %H:%M"

I18n.l Time.now
I18n.l Time.now, format: :short

ActiveRecord

activerecord:
  attributes:
    user:
      name: "Name"
  errors:
    models:
      venue:
        attributes:
          name:
            blank: "Please enter a name."

t 'blank', scope:
  activerecord.errors.models.[model_name].attributes.[attribute_name]
  activerecord.errors.models.[model_name]
  activerecord.errors.messages
  errors.attributes.[attribute_name]
  errors.messages

helpers.submit.[model]:
  create: "Create a %{model}"
  update: "Update %{model}"

confirmation - :confirmation
acceptance   - :accepted
presence     - :blank
length       - :too_short (%{count})
length       - :too_long (%{count})
length       - :wrong_length (%{count})
uniqueness   - :taken
format       - :invalid
numericality - :not_a_number

activerecord.errors.template.header:
  one: "1 error prohibited this %{model} from being saved"

Reference

• http://guides.rubyonrails.org/i18n.html