Display hosts with no interface

JIRA INFRA-569 #action In Progress

app/network/views.py

@@ -473,18 +473,24 @@ def create_scope():
 @bp.route("/_retrieve_hosts")
 @login_required
 def retrieve_hosts():
-    data = [
-        (
-            host.name,
-            str(host.device_type),
-            host.description,
-            interface.name,
-            interface.ip,
-            str(interface.network),
-        )
-        for host in models.Host.query.all()
-        for interface in host.interfaces
-    ]
+    data = []
+    for host in models.Host.query.all():
+        if host.interfaces:
+            for interface in host.interfaces:
+                data.append(
+                    (
+                        host.name,
+                        str(host.device_type),
+                        host.description,
+                        interface.name,
+                        interface.ip,
+                        str(interface.network),
+                    )
+                )
+        else:
+            data.append(
+                (host.name, str(host.device_type), host.description, "", "", "")
+            )
     return jsonify(data=data)