[videos] Make imdb_id and youtube_id unique together

vrobbler/apps/videos/migrations/0026_unique_imdb_youtube_together.py

@@ -0,0 +1,30 @@
+# Generated by Django 4.2.29 on 2026-03-22 17:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("videos", "0025_add_imdb_id_unique"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="video",
+            name="imdb_id",
+            field=models.CharField(blank=True, max_length=20, null=True),
+        ),
+        migrations.AddConstraint(
+            model_name="video",
+            constraint=models.UniqueConstraint(
+                condition=models.Q(
+                    models.Q(("imdb_id__isnull", True), _negated=True),
+                    models.Q(("youtube_id__isnull", True), _negated=True),
+                    _connector="OR",
+                ),
+                fields=("imdb_id", "youtube_id"),
+                name="unique_imdb_or_youtube_id",
+            ),
+        ),
+    ]

vrobbler/apps/videos/models.py

@@ -261,7 +261,7 @@ class Video(ScrobblableMixin):
     season_number = models.IntegerField(**BNULL)
     episode_number = models.IntegerField(**BNULL)
     next_imdb_id = models.CharField(max_length=20, **BNULL)
-    imdb_id = models.CharField(max_length=20, **BNULL, unique=True)
+    imdb_id = models.CharField(max_length=20, **BNULL)
     imdb_rating = models.FloatField(**BNULL)
     tmdb_rating = models.FloatField(**BNULL)
     cover_image = models.ImageField(upload_to="videos/video/", **BNULL)
@@ -293,6 +293,16 @@ class Video(ScrobblableMixin):
             return f"{self.title} / {self.channel}"
         return self.title
 
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=["imdb_id", "youtube_id"],
+                name="unique_imdb_or_youtube_id",
+                condition=~models.Q(imdb_id__isnull=True)
+                | ~models.Q(youtube_id__isnull=True),
+            ),
+        ]
+
     def get_absolute_url(self):
         return reverse("videos:video_detail", kwargs={"slug": self.uuid})