RedundancygroupController:: add sort columns rules as constant

Use Translation trait's translate() method

application/controllers/RedundancygroupController.php

@@ -37,6 +37,16 @@ class RedundancygroupController extends Controller
     /** @var RedundancyGroup */
     protected $group;
 
+    protected const SORT_RULES = [
+        'name' => 'host.display_name, service.display_name, redundancy_group.display_name',
+        'severity' => 'service.state.severity desc, service.state.last_state_change desc, '
+          . 'host.state.severity desc, host.state.last_state_change desc, '
+          .'redundancy_group.state.failed desc, redundancy_group.state.last_state_change desc',
+        'state' => 'service.state.soft_state, host.state.soft_state, redundancy_group.state.failed',
+        'last_state_change' => 'service.state.last_state_change desc, host.state.last_state_change desc, '
+          . 'redundancy_group.state.last_state_change desc'
+    ];
+
     public function init(): void
     {
         // in case of quick actions, param id is not given
@@ -56,7 +66,7 @@ public function init(): void
         $this->group = $query->first();
 
         if ($this->group === null) {
-            throw new NotFoundError(t('Redundancy Group not found'));
+            throw new NotFoundError($this->translate('Redundancy Group not found'));
         }
 
         $this->setTitleTab($this->getRequest()->getActionName());
@@ -99,10 +109,10 @@ public function membersAction(): \Generator
         $sortControl = $this->createSortControl(
             $nodesQuery,
             [
-                'name'                                  => t('Name'),
-                'severity desc, last_state_change desc' => t('Severity'),
-                'state'                                 => t('Current State'),
-                'last_state_change desc'                => t('Last State Change')
+                self::SORT_RULES['name'] => $this->translate('Name'),
+                self::SORT_RULES['severity'] => $this->translate('Severity'),
+                self::SORT_RULES['state'] => $this->translate('Current State'),
+                self::SORT_RULES['last_state_change'] => $this->translate('Last State Change')
             ]
         );
         $viewModeSwitcher = $this->createViewModeSwitcher($paginationControl, $limitControl);
@@ -160,10 +170,10 @@ public function childrenAction()
         $sortControl = $this->createSortControl(
             $nodesQuery,
             [
-                'name'                                  => t('Name'),
-                'severity desc, last_state_change desc' => t('Severity'),
-                'state'                                 => t('Current State'),
-                'last_state_change desc'                => t('Last State Change')
+                self::SORT_RULES['name'] => $this->translate('Name'),
+                self::SORT_RULES['severity'] => $this->translate('Severity'),
+                self::SORT_RULES['state'] => $this->translate('Current State'),
+                self::SORT_RULES['last_state_change'] => $this->translate('Last State Change')
             ]
         );
         $viewModeSwitcher = $this->createViewModeSwitcher($paginationControl, $limitControl);
@@ -251,22 +261,22 @@ public function searchEditorAction(): void
         }
 
         $this->getDocument()->add($editor);
-        $this->setTitle(t('Adjust Filter'));
+        $this->setTitle($this->translate('Adjust Filter'));
     }
 
     protected function createTabs(): Tabs
     {
         $tabs = $this->getTabs()
             ->add('index', [
-                'label'  => t('Redundancy Group'),
+                'label'  => $this->translate('Redundancy Group'),
                 'url'    => Links::redundancyGroup($this->group)
             ])
             ->add('members', [
-                'label'  => t('Members'),
+                'label'  => $this->translate('Members'),
                 'url'    => Links::redundancyGroupMembers($this->group)
             ])
             ->add('children', [
-                'label'  => t('Children'),
+                'label'  => $this->translate('Children'),
                 'url'    => Links::redundancyGroupChildren($this->group)
             ]);