Credit: begin work on TrackCredit

api/funkwhale_api/music/migrations/0037_track_credit.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+def populate_track_credit(apps, schema_editor):
+    from funkwhale_api.music.models import Credit
+
+    TrackCredit = apps.get_model("music", "TrackCredit")
+    Track = apps.get_model("music", "Track")
+
+    for tk in Track.objects.all():
+        tc = TrackCredit()
+        tc.artist = tk.artist
+        tc.track = tk
+        tc.credit = Credit.MAIN
+        tc.save()
+
+
+def rewind(apps, schema_editor):
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("music", "0036_track_disc_number"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="TrackCredit",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                ("affiliation", models.CharField(choices=[("main", "Main"), ("featured", "Featured"), ("composer", "Composer"), ("conductor", "Conductor"), ("compiler", "Compiler"), ("remixer", "Remixer"), ("producer", "Producer")], default="main", max_length=30)),
+                ("artist", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name="credits", to="music.Artist")),
+                ("track", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name="credits", to="music.Track")),
+            ],
+        ),
+        migrations.AlterUniqueTogether(
+            name='trackcredit',
+            unique_together={('artist', 'track', 'affiliation')},
+        ),
+        migrations.RunPython(populate_track_credit, rewind),
+    ]

api/funkwhale_api/music/models.py

@@ -621,6 +621,37 @@ class UploadQuerySet(models.QuerySet):
         return self.exclude(audio_file=None).exclude(audio_file="")
 
 
+class Credit:
+    MAIN = "main"
+    FEATURED = "featured"
+    COMPOSER = "composer"
+    CONDUCTOR = "conductor"
+    COMPILER = "compiler"
+    REMIXER = "remixer"
+    PRODUCER = "producer"
+
+    _CHOICES = (
+        (MAIN, "Main"),
+        (FEATURED, "Featured"),
+        (COMPOSER, "Composer"),
+        (CONDUCTOR, "Conductor"),
+        (COMPILER, "Compiler"),
+        (REMIXER, "Remixer"),
+        (PRODUCER, "Producer"),
+    )
+
+
+class TrackCredit(models.Model):
+    artist = models.ForeignKey(Artist, related_name="credits", on_delete=models.CASCADE)
+    track = models.ForeignKey(Track, related_name="credits", on_delete=models.CASCADE)
+    affiliation = models.CharField(
+        max_length=30, default=Credit.MAIN, choices=Credit._CHOICES
+    )
+
+    class Meta:
+        unique_together = (('artist', 'track', 'affiliation'),)
+
+
 TRACK_FILE_IMPORT_STATUS_CHOICES = (
     ("pending", "Pending"),
     ("finished", "Finished"),

api/funkwhale_api/music/serializers.py

@@ -77,8 +77,17 @@ class ArtistSimpleSerializer(serializers.ModelSerializer):
         fields = ("id", "mbid", "name", "creation_date")
 
 
+class ArtistCreditSerializer(serializers.ModelSerializer):
+    artist = ArtistSimpleSerializer()
+
+    class Meta:
+        model = models.TrackCredit
+        fields = ("artist", "affiliation")
+
+
 class AlbumTrackSerializer(serializers.ModelSerializer):
     artist = ArtistSimpleSerializer(read_only=True)
+    credits = ArtistCreditSerializer(many=True, read_only=True)
     uploads = serializers.SerializerMethodField()
     listen_url = serializers.SerializerMethodField()
     duration = serializers.SerializerMethodField()
@@ -91,6 +100,7 @@ class AlbumTrackSerializer(serializers.ModelSerializer):
             "title",
             "album",
             "artist",
+            "credits",
             "creation_date",
             "position",
             "disc_number",
@@ -181,6 +191,7 @@ class TrackUploadSerializer(serializers.ModelSerializer):
 
 class TrackSerializer(serializers.ModelSerializer):
     artist = ArtistSimpleSerializer(read_only=True)
+    credits = ArtistCreditSerializer(many=True, read_only=True)
     album = TrackAlbumSerializer(read_only=True)
     lyrics = serializers.SerializerMethodField()
     uploads = serializers.SerializerMethodField()