Locale changes between static mount and liveview about gettext HOT 1 CLOSED

@itrelease The initial render of liveview and the socket rendered version don't work completely the same.

The initial render runs normally through your router and all plugs. But the socket version runs through the socket declared in your endpoint. That one does not run all your plugs.

Gettext persists the chosen language in the process dictionary. That does not work for a live view since the initial render and the web socket render are in different processes.

There's multiple ways to make sure that live view does the language correctly. I've personally used ex_cldr and its Cldr.Plug.PutSession plug. The session you can also read in your live view and set the locale accordingly.

You can see this used in an older project of mine (not the most current live view version): https://github.com/jshmrtn/hygeia/blob/main/lib/hygeia_web/live/init/locale.ex

Another way would be to pass the contents of navigator.languages to your LiveSocket params in JS and read that result.

To not repeat that same setup in every live view, on_mount can be used to only write the setup code once.

Phoenix also dedicated a whole guide on the topic: https://hexdocs.pm/phoenix_live_view/using-gettext.html#content

I'll close this issue since this is not a Gettext problem but more of an issue how phoenix / live view are being used.

from gettext.