Q&D fix for suggestions which bypass ORM behaviors

library/Icingadb/Util/ObjectSuggestionsCursor.php

@@ -0,0 +1,25 @@
+<?php
+
+/* Icinga DB Web | (c) 2022 Icinga GmbH | GPLv2 */
+
+namespace Icinga\Module\Icingadb\Util;
+
+use ipl\Sql\Cursor;
+use Iterator;
+
+class ObjectSuggestionsCursor extends Cursor
+{
+    public function getIterator(): Iterator
+    {
+        foreach (parent::getIterator() as $key => $value) {
+            // TODO(lippserd): This is a quick and dirty fix for PostgreSQL binary datatypes for which PDO returns
+            // PHP resources that would cause exceptions since resources are not a valid type for attribute values.
+            // We need to do it this way as the suggestion implementation bypasses ORM behaviors here and there.
+            if (is_resource($value)) {
+                $value = stream_get_contents($value);
+            }
+
+            yield $key => $value;
+        }
+    }
+}

library/Icingadb/Web/Control/SearchBar/ObjectSuggestions.php

@@ -11,6 +11,7 @@ use Icinga\Module\Icingadb\Model\Behavior\ReRoute;
 use Icinga\Module\Icingadb\Model\CustomvarFlat;
 use Icinga\Module\Icingadb\Model\Host;
 use Icinga\Module\Icingadb\Model\Service;
+use Icinga\Module\Icingadb\Util\ObjectSuggestionsCursor;
 use ipl\Html\HtmlElement;
 use ipl\Orm\Exception\InvalidColumnException;
 use ipl\Orm\Exception\InvalidRelationException;
@@ -18,7 +19,6 @@ use ipl\Orm\Model;
 use ipl\Orm\Relation\BelongsToMany;
 use ipl\Orm\Resolver;
 use ipl\Orm\UnionModel;
-use ipl\Sql\Cursor;
 use ipl\Sql\Expression;
 use ipl\Sql\Select;
 use ipl\Stdlib\Filter;
@@ -161,7 +161,7 @@ class ObjectSuggestions extends Suggestions
         $this->applyRestrictions($query);
 
         try {
-            return (new Cursor($query->getDb(), $query->assembleSelect()->distinct()))
+            return (new ObjectSuggestionsCursor($query->getDb(), $query->assembleSelect()->distinct()))
                 ->setFetchMode(PDO::FETCH_COLUMN);
         } catch (InvalidColumnException $e) {
             throw new SearchException(sprintf(t('"%s" is not a valid column'), $e->getColumn()));