From d67445057a3043f15f85f6f1a5c66281471aae71 Mon Sep 17 00:00:00 2001
From: David Evans <dave.evans@thedatalab.org>
Date: Thu, 21 Sep 2023 08:57:10 +0100
Subject: [PATCH] Raise an explicit error for TRUD login failure

This should make it easier to identify the issue in future.
---
 openprescribing/dmd/management/commands/fetch_dmd.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/openprescribing/dmd/management/commands/fetch_dmd.py b/openprescribing/dmd/management/commands/fetch_dmd.py
index c5bf4ed6f3..98284d81ae 100644
--- a/openprescribing/dmd/management/commands/fetch_dmd.py
+++ b/openprescribing/dmd/management/commands/fetch_dmd.py
@@ -32,6 +32,10 @@ def handle(self, *args, **kwargs):
             "commit": "LOG+IN",
         }
         rsp = session.post(login_url, params)
+        if "The email address or password is invalid" in rsp.text:
+            raise RuntimeError(
+                f"TRUD login failure for username: {settings.TRUD_USERNAME!r}"
+            )
 
         index_url = (
             base_url