optimze home page and product page

backend/product/admin.py

@@ -15,6 +15,10 @@ from django.shortcuts import redirect, render
 from django.utils.html import format_html
 from .permissions import ProductDetailCategoryPermission, ProductAdminPermission, ProductVariantAdminPermission, ProductVariantInlineAdminPermission, InPackItemsAdminPermission, AttributeTypeAdminPermission, AttributeValueAdminPermission
 from django import forms
+from django.core.cache import cache
+
+# Cache key for home page
+HOME_CACHE_KEY = 'home_view_data_anonymous'
 
 @admin.register(ProductDetailCategory)
 class ProductDetailCategoryAdmin(ProductDetailCategoryPermission, ModelAdmin, ImportExportModelAdmin):
@@ -299,6 +303,10 @@ class ProductVariantInLine(ProductVariantInlineAdminPermission, StackedInline):
             return ['price', 'sell', 'price_in_dollor']
         else:
             return ['price', 'sell', 'price_in_dollor', 'slider_category']
+    
+    def save_formset(self, request, form, formset, change):
+        super().save_formset(request, form, formset, change)
+        cache.delete(HOME_CACHE_KEY)
 
 from unfold.contrib.filters.admin import RelatedDropdownFilter
 
@@ -330,6 +338,10 @@ class ProductVariantAdmin(ProductVariantAdminPermission, ModelAdmin, ImportExpor
     list_display = ('product', 'created_at')
     # inlines = [DetailModelInLine]
 
+    def save_model(self, request, obj, form, change):
+        super().save_model(request, obj, form, change)
+        cache.delete(HOME_CACHE_KEY)
+
 
 @admin.register(ProductModel)
 class ProductModelAdmin(ProductAdminPermission, ModelAdmin, ImportExportModelAdmin):
@@ -369,6 +381,10 @@ class ProductModelAdmin(ProductAdminPermission, ModelAdmin, ImportExportModelAdm
         else:
             return ['show_in_bot', 'bot_banner',  'created_at', 'show_in_top_seller','show_in_trends', 'show_in_most_viewed', 'show_in_lot_of_discount','meta_description', 'meta_keywords', 'meta_rating', 'rating', 'view', 'slug']
 
+    def save_model(self, request, obj, form, change):
+        super().save_model(request, obj, form, change)
+        cache.delete(HOME_CACHE_KEY)
+
     def display_price(self, obj):
         if obj.variants.all().first():
             return obj.variants.all().first().price
@@ -464,6 +480,11 @@ class MainCategoryModelAdmin(ModelAdmin, ImportExportModelAdmin):
         }
     }
 
+    def save_model(self, request, obj, form, change):
+        super().save_model(request, obj, form, change)
+        cache.delete(HOME_CACHE_KEY)
+        cache.delete('all_categories_v2')
+
 @admin.register(SubCategoryModel)
 class SubCategoryModelAdmin(ModelAdmin, ImportExportModelAdmin):
     list_display = ['name', 'parent']
@@ -487,6 +508,20 @@ class SubCategoryModelAdmin(ModelAdmin, ImportExportModelAdmin):
 
     def has_view_permission(self, request, obj = ...):
         return True
+    
+    def has_add_permission(self, request):
+        return True
+    
+    def has_change_permission(self, request, obj=None):
+        return True
+    
+    def has_delete_permission(self, request, obj=None):
+        return False
+
+    def save_model(self, request, obj, form, change):
+        super().save_model(request, obj, form, change)
+        cache.delete(HOME_CACHE_KEY)
+        cache.delete('all_categories_v2')
 
 @admin.register(CommentModel)
 class CommentAdmin(ModelAdmin, ImportExportModelAdmin):