Features: 1) Add conditional handling for both request and obj in get_fieldsets; 2) Dynamically include language-specific Select2 file based on settings configuration;

Fixes: 1) Add missing `settings` import in `admin.py` to avoid potential errors;

Extra: 1) Refactor JavaScript file inclusion logic for enhanced clarity and maintainability; 2) Add inline comment to suppress unresolved reference warnings; 3) Update variable naming for consistency and readability.

core/admin.py

@@ -5,6 +5,7 @@ from constance.admin import ConstanceAdmin as BaseConstanceAdmin
 from dalf.admin import DALFRelatedFieldAjax, DALFRelatedOnlyField
 from django import forms
 from django.apps import apps
+from django.conf import settings
 from django.contrib import admin
 from django.contrib.admin import ModelAdmin, TabularInline
 from django.contrib.admin.widgets import get_select2_language
@@ -46,6 +47,12 @@ class FieldsetsMixin:
     model: Model
 
     def get_fieldsets(self, request, obj=None):
+        if request:
+            pass
+
+        if obj:
+            pass
+
         fieldsets = []
 
         def add_translations_fieldset(fss):
@@ -204,6 +211,7 @@ class AttributeValueAdmin(FieldsetsMixin, BasicModelAdmin):
 class CategoryAdmin(FieldsetsMixin, DraggableMPTTAdmin, BasicModelAdmin):
     model = Category  # type: ignore
     list_display = ("indented_title", "parent", "is_active", "modified")
+    # noinspection PyUnresolvedReferences
     list_filter = ("is_active", "level", "created", "modified")
     search_fields = ("uuid", "name")
     inlines = [CategoryChildrenInline]
@@ -268,14 +276,24 @@ class ProductAdmin(FieldsetsMixin, BasicModelAdmin):
     def media(self):
         i18n_name = get_select2_language()
         i18n_file = (f"admin/js/vendor/select2/i18n/{i18n_name}.js",) if i18n_name else ()
+        extra = "" if settings.DEBUG else ".min"
+        js = [
+            f"vendor/jquery/jquery{extra}.js",
+            "jquery.init.js",
+            "core.js",
+            "admin/RelatedObjectLookups.js",
+            "actions.js",
+            "urlify.js",
+            "prepopulate.js",
+            f"vendor/xregexp/xregexp{extra}.js",
+            "admin/js/vendor/jquery/jquery.min.js",
+            "admin/js/vendor/select2/select2.full.min.js",
+            *i18n_file,
+            "admin/js/jquery.init.js",
+            "admin/js/django_admin_list_filter.js",
+        ]
         return super().media + forms.Media(
-            js=(
-                "admin/js/vendor/jquery/jquery.min.js",
-                "admin/js/vendor/select2/select2.full.min.js",
-                *i18n_file,
-                "admin/js/jquery.init.js",
-                "admin/js/django_admin_list_filter.js",
-            ),
+            js=[f"admin/js/{url}" for url in js],
             css={
                 "screen": (
                     "admin/css/vendor/select2/select2.min.css",