From 25002955cb17008218e2464929088d979653da54 Mon Sep 17 00:00:00 2001
From: Ioannis Igoumenos <ioigoume@gmail.com>
Date: Tue, 7 Apr 2026 17:07:19 +0300
Subject: [PATCH] TabHelper::getDeepNestedId() fixes

---
 app/src/View/Helper/TabHelper.php | 77 +++++++++++++++++++++----------
 1 file changed, 52 insertions(+), 25 deletions(-)

diff --git a/app/src/View/Helper/TabHelper.php b/app/src/View/Helper/TabHelper.php
index 5bef2078f..c3f8db031 100644
--- a/app/src/View/Helper/TabHelper.php
+++ b/app/src/View/Helper/TabHelper.php
@@ -139,41 +139,68 @@ public function constructLinkUrl(string $tab, string|int $curId, bool $isNested
    */
   public function getDeepNestedId(array $linkFilter): ?int
   {
+    // Retrieve associated IDs for the current view
     $vv_associated_ids = $this->getView()->get('vv_associated_ids');
 
-    // Get the foreign from the linkFilter
+    // Extract the first key from the link filter array (foreign key)
     $linkFilterForeignKey = array_key_first($linkFilter);
-    // Generate the ModelName and instantiate the linked Table
-    $modelName = StringUtilities::foreignKeyToClassName($linkFilterForeignKey);
-    $table = TableRegistry::getTableLocator()->get($modelName);
 
-    $pluralModelName = Inflector::pluralize($modelName);
-    $linkFilterId = $vv_associated_ids[$pluralModelName]
-      ?? current(array_filter($vv_associated_ids, fn($k) => str_ends_with($k, '.' . $pluralModelName), ARRAY_FILTER_USE_KEY))
+    // Derive the model name and qualified model name from the foreign key
+    $modelName = StringUtilities::foreignKeyToClassName($linkFilterForeignKey);
+    $qualifiedModelName = StringUtilities::modelNameToQualifiedModelName($modelName);
+    $table = TableRegistry::getTableLocator()->get($qualifiedModelName);
+
+    // Attempt to retrieve the ID from associated IDs using different possible keys
+    $linkFilterId =
+        $vv_associated_ids[$qualifiedModelName]
+      ?? $vv_associated_ids[$modelName]
+      ?? current(array_filter($vv_associated_ids, fn($k) => str_ends_with($k, '.' . $modelName), ARRAY_FILTER_USE_KEY))
       ?: null;
 
-    if($linkFilterId !== null) {
+    // If an ID is found, return it as an integer
+    if ($linkFilterId !== null) {
       return (int)$linkFilterId;
     }
-    $foreignKeyId = -1;
+
+    // Initialize variables to track foreign key and its ID
+    $foreignKeyId = null;
     $foreignKey = null;
-    // This means that we are working on deep nested associations and we need
-    // to fetch more data
-    $linkFilterSchema = $table->getSchema();
-    foreach($linkFilterSchema->columns() as $column) {
-      // Check the foreign keys
-      if(str_ends_with($column, '_id')) {
-        $foreignKeytToTableName = Inflector::pluralize(StringUtilities::foreignKeyToClassName($column));
-        if(isset($vv_associated_ids[$foreignKeytToTableName])) {
-          $foreignKeyId = $vv_associated_ids[$foreignKeytToTableName];
-          $foreignKey = $column;
-          break;
-        }
+
+    // Iterate through all schema columns to look for a valid foreign key
+    foreach ($table->getSchema()->columns() as $column) {
+      // Skip columns that do not end with '_id'
+      if (!str_ends_with($column, '_id')) {
+        continue;
+      }
+
+      // Convert the foreign key column to model names
+      $fkModelName = StringUtilities::foreignKeyToClassName($column);
+      $fkQualifiedModelName = StringUtilities::modelNameToQualifiedModelName($fkModelName);
+
+      // Check for a match in associated IDs
+      $candidateId =
+        $vv_associated_ids[$fkQualifiedModelName]
+        ?? $vv_associated_ids[$fkModelName]
+        ?? null;
+
+      // If a match is found, set the foreign key ID and column, and break the loop
+      if ($candidateId !== null) {
+        $foreignKeyId = (int)$candidateId;
+        $foreignKey = $column;
+        break;
       }
     }
-    $id = $table->find()->where([$foreignKey => $foreignKeyId])->first()->id;
 
-    return(int)$id;
+    // If no valid foreign key or ID was found, return null
+    if ($foreignKey === null || $foreignKeyId === null) {
+      return null;
+    }
+
+    // Query the database for the associated row using the foreign key
+    $row = $table->find()->where([$foreignKey => $foreignKeyId])->first();
+
+    // Return the ID from the row if found or null otherwise
+    return $row ? (int)$row->id : null;
   }
 
   /**
@@ -398,7 +425,7 @@ public function getLinkFilter(
       [$plugin, $modelName] = explode('.', $tab);
     }
 
-    $modelsTable = TableRegistry::getTableLocator()->get($fullModelsName);
+    $modelsTable = TableRegistry::getTableLocator()->get(StringUtilities::modelNameToQualifiedModelName($fullModelsName));
     $primary_link_list = $modelsTable->getPrimaryLinks();
     $primary_link = null;
     if(count($primary_link_list) > 1) {
@@ -519,7 +546,7 @@ public function setPluginName(?string $pluginName): void
   public function retrievePluginName(string $tab, int $curId): string
   {
     // Get the name of the Core Model
-    [$coreModel, $dummy] = explode('.', $tab);
+    $coreModel = substr($tab, 0, strrpos($tab, '.'));
     $ModelTable = TableRegistry::getTableLocator()->get($coreModel);
     $response = $ModelTable
       ->find()