Different serializers for different actions.

savepointradio/api/serializers/radio.py

@@ -27,10 +27,22 @@ class GameSerializer(serializers.ModelSerializer):
         fields = ('id', 'title')
 
 
-class SongSerializer(serializers.ModelSerializer):
+class SongCreateSerializer(serializers.ModelSerializer):
-    artists = ArtistFullnameSerializer(many=True)
-
     class Meta:
         model = Song
         fields = ('id', 'album', 'artists', 'published_date', 'game',
                   'num_played', 'last_played', 'length', 'song_type', 'title')
+
+    def create(self, validated_data):
+        artists_data = validated_data.pop('artists')
+        song = Song.objects.create(**validated_data)
+        print(artists_data)
+        for artist_data in artists_data:
+            print(artist_data)
+            song.artists.add(artist_data)
+        song.save()
+        return song
+
+
+class SongSerializer(SongCreateSerializer):
+    artists = ArtistFullnameSerializer(many=True)

savepointradio/api/views/radio.py

@@ -3,7 +3,8 @@ from rest_framework import viewsets
 from radio.models import Album, Artist, Game, Song
 from ..permissions import IsAdminOrReadOnly
 from ..serializers.radio import (AlbumSerializer, ArtistSerializer,
-                                 GameSerializer, SongSerializer)
+                                 GameSerializer, SongSerializer,
+                                 SongCreateSerializer)
 
 
 class AlbumViewSet(viewsets.ModelViewSet):
@@ -28,3 +29,13 @@ class SongViewSet(viewsets.ModelViewSet):
     permission_classes = [IsAdminOrReadOnly]
     queryset = Song.objects.all()
     serializer_class = SongSerializer
+
+    def get_serializer_class(self):
+        '''
+        Choose a different serializer based on what action is chosen.
+
+        (Thanks to https://stackoverflow.com/questions/22616973/)
+        '''
+        if self.action == 'create':
+            return SongCreateSerializer
+        return SongSerializer