add back some unique constrains

journal/migrations/0003_auto_20230113_0506.py

@@ -0,0 +1,38 @@
+# Generated by Django 3.2.16 on 2023-01-12 21:06
+
+import catalog.common.utils
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("catalog", "0002_initial"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("journal", "0002_initial"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collection",
+            name="cover",
+            field=models.ImageField(
+                blank=True,
+                default="item/default.svg",
+                upload_to=catalog.common.utils.piece_cover_path,
+            ),
+        ),
+        migrations.AlterUniqueTogether(
+            name="rating",
+            unique_together={("owner", "item")},
+        ),
+        migrations.AlterUniqueTogether(
+            name="shelfmember",
+            unique_together={("parent", "item")},
+        ),
+        migrations.AlterUniqueTogether(
+            name="tagmember",
+            unique_together={("parent", "item")},
+        ),
+    ]

journal/models.py

@@ -245,9 +245,8 @@ class Review(Content):
 
 
 class Rating(Content):
-    # class Meta:
-    #     unique_together = [["owner", "item"]]
-    # FIXME enable after migration
+    class Meta:
+        unique_together = [["owner", "item"]]
 
     grade = models.PositiveSmallIntegerField(
         default=0, validators=[MaxValueValidator(10), MinValueValidator(1)], null=True
@@ -487,9 +486,8 @@ class ShelfMember(ListMember):
         "Shelf", related_name="members", on_delete=models.CASCADE
     )
 
-    # class Meta:
-    #     unique_together = [["parent", "item"]]
-    # FIXME enable after migration
+    class Meta:
+        unique_together = [["parent", "item"]]
 
     @cached_property
     def mark(self):
@@ -702,9 +700,8 @@ Tag
 class TagMember(ListMember):
     parent = models.ForeignKey("Tag", related_name="members", on_delete=models.CASCADE)
 
-    # class Meta:
-    #     unique_together = [["parent", "item"]]
-    # FIXME enable after migration
+    class Meta:
+        unique_together = [["parent", "item"]]
 
 
 TagValidators = [RegexValidator(regex=r"\s+", inverse_match=True)]