Add PartInstrumentSample model and serializer

teleband/musics/api/serializers.py

@@ -1,8 +1,9 @@
 from rest_framework import serializers
 
-from teleband.musics.models import Piece, Part, PartTransposition, Composer, PartType
-
-from teleband.musics.models import PartTransposition, EnsembleType
+from teleband.musics.models import (
+    Piece, Part, PartTransposition, Composer, PartType,
+    PartInstrumentSample, EnsembleType
+)
 from teleband.instruments.models import Transposition
 from teleband.utils.serializers import GenericNameSerializer
 
@@ -45,9 +46,16 @@ class Meta:
         fields = ["part", "transposition", "flatio"]
 
 
+class PartInstrumentSampleSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = PartInstrumentSample
+        fields = ['id', 'part', 'instrument', 'sample_audio']
+
+
 class PartSerializer(serializers.ModelSerializer):
     piece = PieceSerializer()
     transpositions = PartTranspositionSimpleSerializer(many=True)
+    instrument_samples = PartInstrumentSampleSerializer(many=True)
 
     class Meta:
         model = Part
@@ -57,6 +65,7 @@ class Meta:
             "transpositions",
             "sample_audio",
             "chord_scale_pattern",
+            "instrument_samples",
         ]
 
 

teleband/musics/models.py

@@ -93,3 +93,17 @@ class Meta:
 
     def __str__(self):
         return f"{self.part.piece}: {self.part} [{self.transposition}]"
+
+
+class PartInstrumentSample(models.Model):
+    part = models.ForeignKey(Part, related_name="instrument_samples", on_delete=models.PROTECT)
+    instrument = models.ForeignKey('instruments.Instrument', on_delete=models.PROTECT)
+    sample_audio = models.FileField(upload_to="instrument_samples/")
+
+    class Meta:
+        unique_together = ['part', 'instrument']
+        verbose_name = "Part Instrument Sample"
+        verbose_name_plural = "Part Instrument Samples"
+
+    def __str__(self):
+        return f"{self.part} - {self.instrument} Sample"