Hi all,

my backend module looks like:

defmodule OHA.Cldr do
  @moduledoc false

  @gettext_module Application.compile_env(:oha, :gettext, OHA.Gettext)

  use Cldr,
    locales: ["en", "de"],
    default_locale: "de",
    gettext: @gettext_module,
    data_dir: "./priv/cldr",
    otp_app: :oha,
    precompile_number_formats: ["¤¤#,##0.##"],
    providers: [
      Cldr.Number,
      Cldr.List,
      Cldr.Unit,
      Cldr.Territory,
      Cldr.DateTime,
      Cldr.LocaleDisplay
    ],
    generate_docs: false,
    force_locale_download: false
end

then I have a Phoenix project that uses that backend. The conf where I set the gettext_module looks like this:

config :oha, gettext: ZdbWeb.Gettext

Then I have the plugs for both the conn and the session in my browser pipeline, as I use both dead and live views:

pipeline :browser do
  plug(:accepts, ["html"])
  plug(:fetch_session)

  plug Cldr.Plug.PutLocale,
    apps: [:cldr, :gettext],
    from: [:query, :session, :path, :body, :cookie, :accept_language],
    param: "l",
    gettext: ZdbWeb.Gettext,
    cldr: OHA.Cldr

  plug Cldr.Plug.PutSession, as: :string
  plug(:fetch_live_flash)
  plug(:protect_from_forgery)
  plug(:put_secure_browser_headers)
  plug(:fetch_current_user)
end

Then I have a mount hook where I set the locale from what I have in the params or the session:

defmodule OHAWeb.RestoreLocale do
  def on_mount(:default, %{"l" => locale}, _session, socket) do
    # Gettext.put_locale(locale)
    OHA.Cldr.put_locale(locale)
    {:cont, socket}
  end

  def on_mount(:default, _params, %{"cldr_locale" => locale}, socket) do
    # Gettext.put_locale(locale)
    OHA.Cldr.put_locale(locale)
    {:cont, socket}
  end

  def on_mount(:default, _params, _session, socket), do: {:cont, socket}
end

This code does not work, I have to manually call Gettect.put_locale(locale) to make it work.

I am doing something wrong for sure, ideas?

Thank you
Cheers!