Add automatic tag collections

core/models.py

@@ -35,7 +35,7 @@ def without_markdown_code(text):
 def delete_unused_tags(tags=None):
     """Delete tags that are no longer used by items or tag-based features."""
     candidates = Tag.objects.all() if tags is None else Tag.objects.filter(pk__in=[tag.pk for tag in tags])
-    candidates.filter(items__isnull=True, kanbans__isnull=True, api_keys__isnull=True, collections__isnull=True).exclude(
+    candidates.filter(items__isnull=True, kanbans__isnull=True, api_keys__isnull=True, tag_collections__isnull=True).exclude(
         name__in=Team.objects.values_list('slug', flat=True),
     ).delete()
 
@@ -196,12 +196,17 @@ class Kanban(models.Model):
 
 
 class Collection(models.Model):
+    class Mode(models.TextChoices):
+        MANUAL = 'manual', _('Manual collection')
+        TAGS = 'tags', _('Tag collection')
+
     owner = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='collections')
     team = models.ForeignKey(Team, on_delete=models.SET_NULL, blank=True, null=True, related_name='collections')
     title = models.CharField(max_length=200)
     description = models.TextField(blank=True)
     visibility = models.CharField(max_length=10, choices=Item.Visibility.choices, default=Item.Visibility.PRIVATE)
-    tags = models.ManyToManyField(Tag, blank=True, related_name='collections')
+    mode = models.CharField(max_length=10, choices=Mode.choices, default=Mode.MANUAL)
+    filter_tags = models.ManyToManyField(Tag, blank=True, related_name='tag_collections')
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)