cron job added if it wont work fck this

backend/product/models.py

@@ -215,14 +215,13 @@ class ProductDetailModel(models.Model):
     # def __str__(self):
     #     return f'جزيیات محصول {self.product}'
 
-
 class ProductVariant(models.Model):
     product = models.ForeignKey(ProductModel, on_delete=models.CASCADE, related_name='variants', verbose_name='محصول')
     product_attributes = models.ManyToManyField(AttributeValue, verbose_name='ویژگی‌ها', related_name='variant')
     in_stock = models.PositiveIntegerField(default=0, verbose_name='تعداد موجود')
-    price = models.PositiveIntegerField(default=0, verbose_name='قیمت')
+    price = models.PositiveIntegerField(verbose_name='قیمت محاسبه شده', blank=True, null=True)
+    input_price = models.PositiveIntegerField(default=0, verbose_name='قیمت ورودی')
     min_price = models.PositiveIntegerField(verbose_name='قیمت کف', help_text='این قیمت برای کف قیمتی محصول در نظر گرفته میشود')
-    max_price = models.PositiveIntegerField(verbose_name='قیمت سقف', help_text='این قیمت برای سقف قیمتی محصول در نظر گرفته میشود')
     currency_type = (
         ('dollor', 'دلار'),
         ('toman', 'تومان'),
@@ -232,33 +231,56 @@ class ProductVariant(models.Model):
     sell = models.IntegerField(default=0, verbose_name='فروش')
     currency = models.CharField(verbose_name='نوع ارز', max_length=20, choices=currency_type)
     discount = models.SmallIntegerField(default=0, verbose_name='تخفیف')
-    color = models.CharField(verbose_name='رنک', max_length=7, blank=True, null=True)
+    color = models.CharField(verbose_name='رنگ', max_length=7, blank=True, null=True)
     images = models.ManyToManyField(ProductImageModel, verbose_name='عکس ها')
     video = models.FileField(upload_to='product_videos/', blank=True, null=True, verbose_name='ویدیو')
-    details = models.ManyToManyField(ProductDetailModel, verbose_name='جزيیات محصول', related_name='product')
+    details = models.ManyToManyField(ProductDetailModel, verbose_name='جزییات محصول', related_name='product')
     class Meta:
         verbose_name = 'تنوع محصول'
         verbose_name_plural = 'تنوع‌های محصول'
 
     def __str__(self):
         return f"{self.product.name} - {', '.join(str(attr) for attr in self.product_attributes.all())}"
-
-    def get_toman_price(self, dollor_price=None):
+        
+    def set_or_update_price(self, dollor_price=None):
         if not dollor_price:
             dollor_object, _ = DollorModel.objects.get_or_create(unique_filed='unique')
             dollor_price = dollor_object.price
 
-        dollar_to_dirham = 0.27
         if dollor_price is None:
             raise ValidationError({"dollor_price": "The 'dollor_price' must be provided in the context for dollar pricing."})
+
+        dollar_to_dirham = 0.27
+
         if self.currency == 'toman':
-            toman_price =  self.price
+            toman_price = self.input_price
         elif self.currency == 'dollor':
-            toman_price =  self.price * dollor_price
+            toman_price = self.input_price * dollor_price
         elif self.currency == 'derham':
-            toman_price =  self.price * dollor_price * dollar_to_dirham
-        toman_price = toman_price if toman_price > self.min_price else self.min_price
-        return toman_price
+            toman_price = self.input_price * dollor_price * dollar_to_dirham
+        else:
+            toman_price = self.input_price
+
+        self.price = max(toman_price, self.min_price)
+
+    def save(self, *args, **kwargs):
+        self.set_or_update_price()
+        super().save(*args, **kwargs)
 
     def get_toman_price_after_discount(self):
-        return self.get_toman_price() * ((100 - self.discount) / 100)
+        return self.price * ((100 - self.discount) / 100)
+    
+    @classmethod
+    def update_all_prices(cls):
+        print('calling the update all prices ')
+        dollor_object, _ = DollorModel.objects.get_or_create(unique_filed='unique')
+        print(dollor_object.price)
+        dollor_object.update_price()
+        dollor_object.save()
+        dollor_price = dollor_object.price
+        print(dollor_object.price)
+        print('classmethod dollor price update ')
+        products = cls.objects.all()
+        for product in products:
+            product.set_or_update_price(dollor_price=dollor_price)
+            product.save()