Add relation labels to suggestions

Author: BastianLedererIcinga

library/Notifications/Hook/V2/SourceHook.php

@@ -79,4 +79,13 @@ public function getValueSuggestions(string $column, string $searchTerm, Chain $s
      * @return Traversable Columns to be suggested as `search` => `label`
      */
     public function getColumnSuggestions(string $searchTerm): Traversable;
+
+    /**
+     * Get whether a relation label should be added to the suggestion
+     *
+     * @param string $column
+     *
+     * @return bool
+     */
+    public function shouldShowRelationFor(string $column): bool;
 }

library/Notifications/Web/Control/SearchEditor/RuleFilterSuggestions.php

@@ -5,12 +5,10 @@
 
 namespace Icinga\Module\Notifications\Web\Control\SearchEditor;
 
-use Generator;
 use Icinga\Module\Notifications\Hook\V2\SourceHook;
 use ipl\Html\HtmlElement;
 use ipl\Stdlib\Filter;
 use ipl\Web\Control\SearchBar\Suggestions;
-use Psr\Http\Message\ServerRequestInterface;
 use Traversable;
 
 /**
@@ -37,6 +35,11 @@ protected function fetchValueSuggestions($column, $searchTerm, Filter\Chain $sea
         yield from $this->hook->getValueSuggestions($column, $searchTerm, $searchFilter);
     }
 
+    protected function shouldShowRelationFor(string $column): bool
+    {
+        return $this->hook->shouldShowRelationFor($column);
+    }
+
     protected function fetchColumnSuggestions($searchTerm): Traversable
     {
         $currentGroup = null;