Set Translation

set_translation.py

urls.py
============================
from django.urls import path

# Your path of views
from apps.main.views import main, set_language_from_url

urlpatterns = [
    ...
    path("set_language/<str:user_language>/", set_language_from_url, name="set_language_from_url")
]

views.py
============================
def set_language_from_url(request, user_language):
    translation.activate(user_language)
    request.session[translation.LANGUAGE_SESSION_KEY] = user_language
    # I use HTTP_REFERER to direct them back to previous path 
    return HttpResponseRedirect(request.META.get('HTTP_REFERER'))

file.html
============================
<a href="{% url 'main:set_language_from_url' 'en' %}"><img src="{% static 'assets/img/gis/en.png' %}" alt="en language" /></a>
<a href="{% url 'main:set_language_from_url' 'vi' %}"><img src="{% static 'assets/img/gis/vi.png' %}" alt="vietnames language" /></a>