Add locale to the path

config/config.exs

@@ -9,6 +9,9 @@ use Mix.Config
 config :explorer,
   ecto_repos: [Explorer.Repo]
 
+# Configures gettext
+config :explorer, ExplorerWeb.Gettext, locales: ~w(en), default_locale: "en"
+
 # Configures the endpoint
 config :explorer, ExplorerWeb.Endpoint,
   url: [host: "localhost"],

lib/explorer_web/router.ex

@@ -7,6 +7,7 @@ defmodule ExplorerWeb.Router do
     plug :fetch_flash
     plug :protect_from_forgery
     plug :put_secure_browser_headers
+    plug SetLocale, gettext: ExplorerWeb.Gettext, default_locale: "en"
   end
 
   pipeline :api do
@@ -14,13 +15,12 @@ defmodule ExplorerWeb.Router do
   end
 
   scope "/", ExplorerWeb do
-    pipe_through :browser # Use the default browser stack
+    pipe_through :browser
+    get "/", PageController, :dummy
+  end
 
+  scope "/:locale", ExplorerWeb do
+    pipe_through :browser # Use the default browser stack
     get "/", PageController, :index
   end
-
-  # Other scopes may use custom stacks.
-  # scope "/api", ExplorerWeb do
-  #   pipe_through :api
-  # end
 end

mix.exs

@@ -29,8 +29,8 @@ defmodule Explorer.Mixfile do
   defp elixirc_paths(_),     do: ["lib"]
 
   # Specifies extra applications to start per environment
-  defp extra_applications(:prod), do: [:logger, :runtime_tools, :phoenix_pubsub_redis, :new_relixir]
-  defp extra_applications(_), do: [:logger, :runtime_tools]
+  defp extra_applications(:prod), do: [:set_locale, :logger, :runtime_tools, :phoenix_pubsub_redis, :new_relixir]
+  defp extra_applications(_), do: [:set_locale, :logger, :runtime_tools]
 
   # Specifies your project dependencies.
   #
@@ -50,6 +50,7 @@ defmodule Explorer.Mixfile do
       {:phoenix_pubsub, "~> 1.0"},
       {:phoenix_pubsub_redis, "~> 2.1.0", only: [:prod]},
       {:postgrex, ">= 0.0.0"},
+      {:set_locale, github: "minifast/set_locale", branch: "master"}, # Waiting on https://github.com/smeevil/set_locale/pull/9
       {:wallaby, "~> 0.19.2", only: [:test], runtime: false},
     ]
   end

mix.lock

@@ -31,6 +31,7 @@
   "ranch": {:hex, :ranch, "1.3.2", "e4965a144dc9fbe70e5c077c65e73c57165416a901bd02ea899cfd95aa890986", [:rebar3], [], "hexpm"},
   "redix": {:hex, :redix, "0.6.1", "20986b0e02f02b13e6f53c79a1ae70aa83147488c408f40275ec261f5bb0a6d0", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}], "hexpm"},
   "redix_pubsub": {:hex, :redix_pubsub, "0.4.1", "26e6a69129072ac2226be49139019bdf951bb1e9e210a773c1372acf88100936", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:redix, "~> 0.6.0", [hex: :redix, repo: "hexpm", optional: false]}], "hexpm"},
+  "set_locale": {:git, "https://github.com/minifast/set_locale.git", "da9ae029642bc0fbd9212c2aaf86c0adca70c084", [branch: "master"]},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [:make, :rebar], [], "hexpm"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.3.1", "a1f612a7b512638634a603c8f401892afbf99b8ce93a45041f8aaca99cadb85e", [:rebar3], [], "hexpm"},
   "wallaby": {:hex, :wallaby, "0.19.2", "358bbff251e3555e02566280d1795132da792969dd58ff89963536d013058719", [:mix], [{:httpoison, "~> 0.12", [hex: :httpoison, repo: "hexpm", optional: false]}, {:poison, ">= 1.4.0", [hex: :poison, repo: "hexpm", optional: false]}, {:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: false]}], "hexpm"}}

test/explorer_web/controllers/page_controller_test.exs

@@ -1,22 +1,29 @@
 defmodule ExplorerWeb.PageControllerTest do
   use ExplorerWeb.ConnCase
 
-  describe "GET index/2" do
-    test "returns a welcome message", %{conn: conn} do
+  describe "GET index/2 without a locale" do
+    test "redirects to the en locale", %{conn: conn} do
       conn = get conn, "/"
+      assert redirected_to(conn) == "/en"
+    end
+  end
+
+  describe "GET index/2 with a locale" do
+    test "returns a welcome message", %{conn: conn} do
+      conn = get conn, "/en"
       assert html_response(conn, 200) =~ "Welcome"
     end
 
     test "returns a block", %{conn: conn} do
       block = insert(:block, %{number: 23})
-      conn = get conn, "/"
+      conn = get conn, "/en"
       assert(List.first(conn.assigns.blocks) == block)
     end
 
     test "excludes all but the most recent five blocks", %{conn: conn} do
       old_block = insert(:block)
       insert_list(5, :block)
-      conn = get conn, "/"
+      conn = get conn, "/en"
       refute(Enum.member?(conn.assigns.blocks, old_block))
     end
   end

test/explorer_web/features/contributor_browsing_test.exs

@@ -6,8 +6,10 @@ defmodule ExplorerWeb.UserListTest do
   @logo css("img.header__logo")
 
   test "browses the home page", %{session: session} do
+    session |> visit("/")
+    assert current_path(session) == "/en"
+
     session
-    |> visit("/")
     |> assert_has(css(".header__title", text: "POA Network Explorer"))
     |> click(@logo)
     |> assert_has(css("main", text: "Welcome to our blockchain explorer."))