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Fix and improve language handling

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- Refactor plugs to detect and set language
- Translate ecto validation errors
- Use Gettext directly, not Mobilizon.Web.Gettext
- Set the language in the <html> attribute according to the one loaded
  on front-end

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
This commit is contained in:
Thomas Citharel
2021-07-27 19:47:54 +02:00
parent 7c943dc09a
commit a670a7d7a7
37 changed files with 286 additions and 218 deletions
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26
lib/web/gettext.ex
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@@ -21,30 +21,4 @@ defmodule Mobilizon.Web.Gettext do
See the [Gettext Docs](https://hexdocs.pm/gettext) for detailed usage.
"""
use Gettext, otp_app: :mobilizon
def put_locale(locale) do
locale = determine_best_locale(locale)
Gettext.put_locale(__MODULE__, locale)
end
@spec determine_best_locale(String.t()) :: String.t()
def determine_best_locale(locale) do
locale = String.trim(locale)
locales = Gettext.known_locales(__MODULE__)
default = Keyword.get(Mobilizon.Config.instance_config(), :default_language, "en") || "en"
cond do
# Default if nothing provided
locale == "" -> default
# Either it matches directly, eg: "en" => "en", "fr" => "fr"
locale in locales -> locale
# Either the first part matches, "fr_CA" => "fr"
split_locale(locale) in locales -> split_locale(locale)
# Otherwise set to default
true -> default
end
end
# Keep only the first part of the locale
defp split_locale(locale), do: locale |> String.split("_", trim: true, parts: 2) |> hd
end