Add REST API to roster

dcc/roster/serializers.py

@@ -0,0 +1,18 @@
+from rest_framework import serializers
+from roster.models import Cab
+from metadata.serializers import (
+    ManufacturerSerializer, CompanySerializer, DecoderSerializer)
+
+
+class CabSerializer(serializers.ModelSerializer):
+    manufacturer = ManufacturerSerializer()
+    decoder = DecoderSerializer()
+    company = CompanySerializer()
+    # manufacturer = serializers.StringRelatedField()
+    # decoder = serializers.StringRelatedField()
+    # company = serializers.StringRelatedField()
+
+    class Meta:
+        model = Cab
+        fields = "__all__"
+        read_only_fields = ("identifier", "creation_time", "updated_time")