From 1b715b85cb0d22fa545a948cbd219e59285fcdd3 Mon Sep 17 00:00:00 2001
From: Andrew McMillan <debian@mcmillan.net.nz>
Date: Thu, 2 Nov 2006 20:24:07 +1300
Subject: [PATCH] Produce more friendly error message on integrity constraint
 violation.

---
 htdocs/relationship_types.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/htdocs/relationship_types.php b/htdocs/relationship_types.php
index 9f7596ec..38249115 100644
--- a/htdocs/relationship_types.php
+++ b/htdocs/relationship_types.php
@@ -25,6 +25,9 @@ require_once("interactive-page.php");
         }
         else {
           $c->messages[] = "Database Error.";
+          if ( preg_match("/violates foreign key constraint/", $qry->errorstring ) ) {
+            $c->messages[] = "That relationship type is being used. See ##RelationshipTypeUsed##";
+          }
         }
         break;