As an admin I want to be able to create a custom use. As an user I want to see listed only posts in the current selected language. As an user I want to be able to switch languages between EN-DE

membership/admin.py

@@ -1,4 +1,20 @@
 from django.contrib import admin
 from .models import CustomUser
+from django.contrib.auth.hashers import make_password
 
-admin.site.register(CustomUser)
+
+class CustomUserAdmin(admin.ModelAdmin):
+    fields = ('password', 'user_permissions', 'email', 'is_admin')
+
+    def save_model(self, request, obj, form, change):
+        password = form.cleaned_data.get('password')
+
+        if not change:
+            obj.validation_slug = make_password(None)
+
+        obj.set_password(password)
+        obj.save()
+        return obj
+
+
+admin.site.register(CustomUser, CustomUserAdmin)