added an explicit error for a common occurence in autofieldwidget land

git-svn-id: svn://svn.open-ils.org/ILS/trunk@12683 dcc99617-32d9-48b4-a31d-7c20da2025e4

diff --git a/Open-ILS/web/js/dojo/openils/widget/AutoFieldWidget.js b/Open-ILS/web/js/dojo/openils/widget/AutoFieldWidget.js
index 969781c..d43ca04 100644 (file)
--- a/Open-ILS/web/js/dojo/openils/widget/AutoFieldWidget.js
+++ b/Open-ILS/web/js/dojo/openils/widget/AutoFieldWidget.js
@@ -38,6 +38,9 @@ if(!dojo._hasResource['openils.widget.AutoFieldWidget']) {
                     if(fields[f].name == this.fmField)
                         this.idlField = fields[f];
             }
+
+            if(!this.idlField) 
+                throw new Error("AutoFieldWidget could not determine which field to render.  We need more information.");
         },
 
         /**