Internationalization

The CMS can provide a side by side interface for authoring content in multiple languages. Configuring the CMS for i18n support requires top level configuration, collection level configuration and field level configuration.

Top level configuration

i18n:
  # Required and can be one of multiple_folders, multiple_files or single_file
  # multiple_folders - persists files in `<folder>/<locale>/<slug>.<extension>`
  # multiple_files - persists files in `<folder>/<slug>.<locale>.<extension>`
  # single_file - persists a single file in `<folder>/<slug>.<extension>`
  structure: multiple_folders

  # Required - a list of locales to show in the editor UI
  locales: [en, de, fr]

  # Optional, defaults to the first item in locales.
  # The locale to be used for fields validation and as a baseline for the entry.
  default_locale: en

Collection level configuration

collections:
  - name: i18n_content
    # same as the top level, but all fields are optional and defaults to the top level
    # can also be a boolean to accept the top level defaults
    i18n: true

When using a file collection, you must also enable i18n for each individual file:

collections:
  - name: pages
    label: Pages
    # Configure i18n for this collection.
    i18n:
      structure: single_file
      locales: [en, de, fr]
    files:
      - name: about
        label: About Page
        file: site/content/about.yml
        # Enable i18n for this file.
        i18n: true
        fields:
          - { label: Title, name: title, widget: string, i18n: true }

Field level configuration

fields:
  - label: Title
    name: title
    widget: string
    # same as 'i18n: translate'. Allows translation of the title field
    i18n: true
  - label: Date
    name: date
    widget: datetime
    # The date field will be duplicated from the default locale.
    i18n: duplicate
  - label: Body
    name: body
    # The markdown field will be omitted from the translation.
    widget: markdown

Example configuration:

i18n:
  structure: multiple_folders
  locales: [en, de, fr]

collections:
  - name: posts
    label: Posts
    folder: content/posts
    create: true
    i18n: true
    fields:
      - label: Title
        name: title
        widget: string
        i18n: true
      - label: Date
        name: date
        widget: datetime
        i18n: duplicate
      - label: Body
        name: body
        widget: markdown

Limitations

1. File collections support only structure: single_file.
2. List widgets only support i18n: true. i18n configuration on sub fields is ignored.
3. Object widgets only support i18n: true and i18n configuration should be done per field:

- label: "Object"
  name: "object"
  widget: "object"
  i18n: true
  fields:
    - { label: "String", name: "string", widget: "string", i18n: true }
    - { label: "Date", name: "date", widget: "datetime", i18n: duplicate }
    - { label: "Boolean", name: "boolean", widget: "boolean", i18n: duplicate }
    - {
        label: "Object",
        name: "object",
        widget: "object",
        i18n: true,
        field:
          {
            label: "String",
            name: "string",
            widget: "string",
            i18n: duplicate,
          },
      }