Save graph in crawl converter

bin/conv.py

@@ -7,7 +7,7 @@ os.environ.setdefault("DJANGO_SETTINGS_MODULE", "dnmapper.settings")
 import django
 django.setup()
 
-from backend.crawler import convert_crawl
+from backend.crawler import convert_crawl, net_to_json
 from bgpdata.models import CrawlRun
 
 
@@ -21,7 +21,13 @@ def main():
     except CrawlRun.DoesNotExist:
         parser.error("CrawlRun with id {} does not exist".format(args.crawl_id))
 
-    convert_crawl(crawl)
+    net = convert_crawl(crawl)
+    if net.nodes and net.edges:
+        crawl.graph = net_to_json(net)
+        crawl.save()
+        print("Crawl updated")
+    else:
+        print("Crawl had no nodes or edges, abort")
 
 
 if __name__ == '__main__':