From 9a0a88f21f21f320ea8de4218d0e8fc250a93ad7 Mon Sep 17 00:00:00 2001
From: Demian Katz <demian.katz@villanova.edu>
Date: Fri, 8 May 2026 11:45:38 -0400
Subject: [PATCH 1/2] Display 'no call number' when appropriate.

---
 languages/en.ini                                      | 1 +
 themes/bootstrap5/templates/ajax/itemCallnumber.phtml | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/languages/en.ini b/languages/en.ini
index 1e904610d52..7a32f2db48e 100644
--- a/languages/en.ini
+++ b/languages/en.ini
@@ -932,6 +932,7 @@ Newspaper = "Newspaper"
 Next = "Next"
 Next Search Result = "Next Search Result"
 NLM Title Abbreviation = "NLM Title Abbreviation"
+No call number = "No call number"
 No citations are available for this record = "No citations are available for this record"
 No Comments = "No Comments"
 No Cover Image = "No Cover Image"
diff --git a/themes/bootstrap5/templates/ajax/itemCallnumber.phtml b/themes/bootstrap5/templates/ajax/itemCallnumber.phtml
index e901da35192..3dda31bd92b 100644
--- a/themes/bootstrap5/templates/ajax/itemCallnumber.phtml
+++ b/themes/bootstrap5/templates/ajax/itemCallnumber.phtml
@@ -1,4 +1,6 @@
-<?php if ($this->callnumberHandler): ?>
+<?php if (strlen($this->displayCallnumber ?? '') === 0): ?>
+  <?=$this->transEsc('No call number') ?>
+<?php elseif ($this->callnumberHandler): ?>
   <?php
     $url = $this->url('alphabrowse-home') . '?' . http_build_query([
         'source' => $this->callnumberHandler,

From d59356383de489922a37fff8cc84b42b80717a2b Mon Sep 17 00:00:00 2001
From: Demian Katz <demian.katz@villanova.edu>
Date: Wed, 13 May 2026 08:17:31 -0400
Subject: [PATCH 2/2] Incorporate feedback.

---
 themes/bootstrap5/templates/ajax/itemCallnumber.phtml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/themes/bootstrap5/templates/ajax/itemCallnumber.phtml b/themes/bootstrap5/templates/ajax/itemCallnumber.phtml
index 3dda31bd92b..4384de13e9f 100644
--- a/themes/bootstrap5/templates/ajax/itemCallnumber.phtml
+++ b/themes/bootstrap5/templates/ajax/itemCallnumber.phtml
@@ -1,4 +1,4 @@
-<?php if (strlen($this->displayCallnumber ?? '') === 0): ?>
+<?php if ('' === trim($this->displayCallnumber ?? '')): ?>
   <?=$this->transEsc('No call number') ?>
 <?php elseif ($this->callnumberHandler): ?>
   <?php