Add multiple categories to portfolio and advanced gallery navigation with swipe support

smartsoltech/web/models.py

@@ -174,7 +174,7 @@ class PortfolioItem(models.Model):
     completion_date = models.DateField(blank=True, null=True)
     image = models.ImageField(upload_to='static/img/portfolio/', blank=True, null=True, verbose_name='Главное изображение')
     featured = models.BooleanField(default=False)
-    category = models.ForeignKey(Category, on_delete=models.SET_NULL, null=True, blank=True, related_name='portfolio_items')
+    categories = models.ManyToManyField(Category, blank=True, related_name='portfolio_items', verbose_name='Категории')
     is_active = models.BooleanField(default=True)
 
     class Meta: