core: add DefaultRouter

Author: Kátia Nakamura

pyconbalkan/core/api_urls.py

@@ -0,0 +1,15 @@
+from rest_framework import routers
+
+
+class DefaultRouter(routers.DefaultRouter):
+    """
+    Extends `DefaultRouter` class to add a method for extending url routes from another router.
+    """
+    def extend(self, router):
+        """
+        Extend the routes with url routes of the passed in router.
+
+        Args:
+             router: SimpleRouter instance containing route definitions.
+        """
+        self.registry.extend(router.registry)