From e72fbbe1d94791ef6f8e0793cd4cfb9c0d04acd5 Mon Sep 17 00:00:00 2001
From: Chris Burgess <chris.burgess@catalyst.net.nz>
Date: Thu, 8 Aug 2024 06:45:49 +1200
Subject: [PATCH] Islandora/islandora#2338: Handle unset
 structured_text_term_uri option

---
 .../islandora_iiif/src/Plugin/views/style/IIIFManifest.php | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php b/modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php
index 6afae2499..c1bb234ea 100644
--- a/modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php
+++ b/modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php
@@ -709,9 +709,10 @@ public function submitOptionsForm(&$form, FormStateInterface $form_state) {
    *   The term if it could be found; otherwise, NULL.
    */
   protected function getStructuredTextTerm() : ?TermInterface {
-    if (!$this->structuredTextTermMemoized) {
-      $this->structuredTextTermMemoized = TRUE;
-      $this->structuredTextTerm = $this->utils->getTermForUri($this->options['structured_text_term_uri']);
+    if (!$this->structuredTextTermMemoized && !empty($this->options['structured_text_term_uri'])) {
+      if ($this->structuredTextTerm = $this->utils->getTermForUri($this->options['structured_text_term_uri'])) {
+        $this->structuredTextTermMemoized = TRUE;
+      }
     }
 
     return $this->structuredTextTerm;