Check serial number for product

apps/product/management/commands/add_product_tag.py

@@ -149,6 +149,17 @@ class Command(BaseCommand):
                     tag.label = new_label
             tag.save()
 
+
+    def check_serail_number(self):
+        category = TagCategory.objects.get(index_name='serial_number')
+        tags = Tag.objects.filter(category=category, products__isnull=False)
+        for tag in tqdm(tags, desc='Update serial number for product'):
+            tag.products.all().update(serial_number=tag.value)
+
+        self.stdout.write(self.style.WARNING(f'Check serial number product end.'))
+
+
+
     def handle(self, *args, **kwargs):
         self.remove_tags_product()
         self.remove_tags()

apps/product/migrations/0019_product_serial_number.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.7 on 2019-11-21 09:24
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('product', '0018_purchasedproduct'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='product',
+            name='serial_number',
+            field=models.CharField(default=None, max_length=255, null=True, verbose_name='Serial number'),
+        ),
+    ]

apps/product/models.py

@@ -219,6 +219,10 @@ class Product(GalleryModelMixin, TranslatedFieldsMixin, BaseAttributes, HasTagsM
     comments = generic.GenericRelation(to='comment.Comment')
     awards = generic.GenericRelation(to='main.Award', related_query_name='product')
 
+    serial_number = models.CharField(max_length=255,
+                            default=None, null=True,
+                            verbose_name=_('Serial number'))
+
     objects = ProductManager.from_queryset(ProductQuerySet)()
 
     class Meta: