Добавил недостающие шаблоны, добавил related_name в моделях, добавил недостающие urls

music_storage/music/migrations/0003_alter_track_album.py

@@ -0,0 +1,19 @@
+# Generated by Django 6.0 on 2026-01-02 07:42
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('music', '0002_remove_track_artist'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='track',
+            name='album',
+            field=models.ForeignKey(blank=True, default=None, null=True, on_delete=django.db.models.deletion.SET_DEFAULT, related_name='tracks', to='music.album'),
+        ),
+    ]

music_storage/music/migrations/0004_alter_track_album.py

@@ -0,0 +1,19 @@
+# Generated by Django 6.0 on 2026-01-02 07:45
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('music', '0003_alter_track_album'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='track',
+            name='album',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tracks', to='music.album'),
+        ),
+    ]

music_storage/music/migrations/0005_alter_album_artist.py

@@ -0,0 +1,19 @@
+# Generated by Django 6.0 on 2026-01-02 07:56
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('music', '0004_alter_track_album'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='album',
+            name='artist',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='albums', to='music.artist'),
+        ),
+    ]

music_storage/music/models.py

@@ -10,7 +10,7 @@ class Artist(BaseModel):
 
 
 class Album(BaseModel):
-    artist = models.ForeignKey(Artist, on_delete=models.CASCADE)
+    artist = models.ForeignKey(Artist, on_delete=models.CASCADE, related_name="albums")
     name = models.CharField(max_length=200)
 
     def __str__(self):
@@ -19,7 +19,7 @@ class Album(BaseModel):
 
 class Track(BaseModel):
     title = models.CharField(max_length=200)
-    album = models.ForeignKey(Album, blank=True, null=True, default=None, on_delete=models.SET_DEFAULT)
+    album = models.ForeignKey(Album, on_delete=models.CASCADE, related_name="tracks")
     file = models.FileField(upload_to="music/")
 
     def __str__(self):

music_storage/music/urls.py

@@ -1,8 +1,12 @@
 from django.urls import path
 
 from music.views import TrackListView
+
 from music.views import AlbumListView
+from music.views import AlbumDetailView
+
 from music.views import ArtistListView
+from music.views import ArtistDetailView
 
 
 app_name = "music"
@@ -10,5 +14,7 @@ app_name = "music"
 urlpatterns = [
     path("tracks/", TrackListView.as_view(), name="track_list"),
     path("albums/", AlbumListView.as_view(), name="album_list"),
+    path("albums/<int:pk>/", AlbumDetailView.as_view(), name="album_detail"),
     path("artists/", ArtistListView.as_view(), name="artist_list"),
+    path("artists/<int:pk>/", ArtistDetailView.as_view(), name="artist_detail"),
 ]