python: add public_catalogs url

cataloglist/views.py

@@ -23,3 +23,10 @@ def my_catalogs(request):
     # from time import sleep
     # sleep(5)
     return JsonResponse({'catalogs': data})
+
+
+@login_required
+def public_catalogs(request):
+    cats = Catalog.objects.filter(public=True).order_by('-updated')
+    data = [c.summary() for c in cats]
+    return JsonResponse({'catalogs': data})