From a649c656f2da120b330ebcadf3674d87d512a004 Mon Sep 17 00:00:00 2001
From: Galen Charlton <gmc@equinoxinitiative.org>
Date: Thu, 3 Sep 2020 13:32:46 -0400
Subject: [PATCH] LP#1857150: eg-fm-record-editor: handle unavailable linked
 values

In some cases, a record editor might be handed a base object
that has a linked column whose values cannot be retrieved
because the user has permission to fetch the base object
but not the linked objects. This patch makes the record editor
more resilient in the face of that situation.

Sponsored-by: Evergreen Community Development Initiative

Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>
---
 Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.html | 2 +-
 Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.ts   | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.html b/Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.html
index e1ba382b63..8ca13dcdd7 100644
--- a/Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.html
+++ b/Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.html
@@ -50,7 +50,7 @@
             </ng-container>
 
             <ng-container *ngSwitchCase="'readonly-list'">
-              <ng-container *ngIf="field.linkedValues">
+              <ng-container *ngIf="field.linkedValues && field.linkedValues[0]?.label">
                 <span>{{field.linkedValues[0].label}}</span>
               </ng-container>
             </ng-container>
diff --git a/Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.ts b/Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.ts
index 9a1a12efef..f6ff4418e8 100644
--- a/Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.ts
+++ b/Open-ILS/src/eg2/src/app/share/fm-editor/fm-editor.component.ts
@@ -428,7 +428,9 @@ export class FmRecordEditorComponent
             || this.idl.getClassSelector(class_) || idField;
 
         return list.map(item => {
-            return {id: item[idField](), label: item[selector]()};
+            if (item !== undefined) {
+                return {id: item[idField](), label: item[selector]()};
+            }
         });
     }
 
-- 
2.11.0