Merge pull request #273 from jenslauterbach/api-speakers

Add Initial Speakers Endpoint

devday/devday/urls.py

@@ -9,13 +9,16 @@
 
 from devday.views import SendEmailView, exception_test_view
 from rest_framework import routers
+
+from speaker.api_views import SpeakerViewSet
 from talk.api_views import SessionViewSet
 from twitterfeed.views import TwitterwallView
 
 admin.autodiscover()
 
 router = routers.DefaultRouter()
 router.register(r"sessions", SessionViewSet)
+router.register(r"speakers", SpeakerViewSet)
 
 urlpatterns = [
     url(r"^api/", include(router.urls)),

devday/speaker/api_views.py

@@ -0,0 +1,31 @@
+from rest_framework import serializers, viewsets
+
+from speaker.models import Speaker
+
+
+class SpeakerSerializer(serializers.HyperlinkedModelSerializer):
+    id = serializers.CharField(source="slug")
+    image = serializers.ImageField(source="public_image", use_url=True, allow_null=False, allow_empty_file=False)
+
+    class Meta:
+        model = Speaker
+        fields = ["id", "url", "name", "short_biography", "position", "image"]
+        lookup_field = "slug"
+        extra_kwargs = {
+            "url": {'lookup_field': 'slug'}
+        }
+
+    def to_representation(self, instance):
+        representation = super().to_representation(instance)
+
+        # TODO Jens: This probably can be solved more elegantly with a mixin.
+        if not representation["image"]:
+            representation["image"] = ""
+
+        return representation
+
+
+class SpeakerViewSet(viewsets.ReadOnlyModelViewSet):
+    queryset = Speaker.objects.all()
+    serializer_class = SpeakerSerializer
+    lookup_field = "slug"

devday/talk/api_views.py

@@ -3,15 +3,24 @@
 from talk.models import Talk
 
 
-class SessionSerializer(serializers.ModelSerializer):
+class SessionSerializer(serializers.HyperlinkedModelSerializer):
+    id = serializers.CharField(source="slug")
+    description = serializers.CharField(source="abstract")
+
+    # TODO Jens: Replace 'event' and 'speakers' with proper nested relationships once their endpoints are done.
     event = StringRelatedField()
-    published_speaker = StringRelatedField()
+    published_speakers = StringRelatedField(many=True)
 
     class Meta:
         model = Talk
-        fields = ["url", "title", "abstract", "published_speakers", "event"]
+        fields = ["id", "url", "title", "description", "published_speakers", "event"]
+        lookup_field = "slug"
+        extra_kwargs = {
+            "url": {'lookup_field': 'slug'}
+        }
 
 
 class SessionViewSet(viewsets.ReadOnlyModelViewSet):
     queryset = Talk.objects.filter(published_speakers__isnull=False)
     serializer_class = SessionSerializer
+    lookup_field = 'slug'