Add Clear cache to Admin\Maintenance page

app/Controllers/Routing.php

@@ -754,6 +754,12 @@ class Routing
                 'AdminMaintenance:rebuild',
                 'AdminRebuildIndex'
             );
+            $r->add(
+                $r::PST,
+                '/admin/maintenance/clear',
+                'AdminMaintenance:clearCache',
+                'AdminMaintenanceClear'
+            );
             $r->add(
                 $r::GET,
                 '/admin/logs',

app/Models/Pages/Admin/Maintenance.php

@@ -15,6 +15,7 @@ use ForkBB\Models\Page;
 use ForkBB\Models\Pages\Admin;
 use ForkBB\Models\Config\Config;
 use function \ForkBB\__;
+use RuntimeException;
 
 class Maintenance extends Admin
 {
@@ -56,6 +57,7 @@ class Maintenance extends Admin
         $this->aIndex          = 'maintenance';
         $this->formMaintenance = $this->formMaintenance($config);
         $this->formRebuild     = $this->formRebuild();
+        $this->formClearCache  = $this->formClearCache();
 
         return $this;
     }
@@ -118,7 +120,7 @@ class Maintenance extends Admin
                     ],
                 ],
                 'indx' => [
-                    'legend' => 'Rebuild index head',
+                    'legend' => 'Rebuilding search index',
                     'fields' => [
                         'limit' => [
                             'type'    => 'number',
@@ -162,6 +164,39 @@ class Maintenance extends Admin
 
     }
 
+    /**
+     * Подготавливает массив данных для формы
+     */
+    protected function formClearCache(): array
+    {
+        $form = [
+            'action' => $this->c->Router->link('AdminMaintenanceClear'),
+            'hidden' => [
+                'token' => $this->c->Csrf->create('AdminMaintenanceClear'),
+            ],
+            'sets'   => [
+                'clear-cache' => [
+                    'legend' => 'Clearing the cache',
+                    'fields' => [
+                        'confirm' => [
+                            'type'    => 'checkbox',
+                            'label'   => 'Confirm action',
+                            'checked' => false,
+                        ],
+                    ],
+                ],
+            ],
+            'btns'   => [
+                'clear' => [
+                    'type'  => 'submit',
+                    'value' => __('Clear'),
+                ],
+            ],
+        ];
+
+        return $form;
+    }
+
     /**
      * Подстановка значения по умолчанию
      */
@@ -239,4 +274,38 @@ class Maintenance extends Admin
             return $this->c->Redirect->page('AdminMaintenance')->message('Rebuilding index end', FORK_MESS_SUCC);
         }
     }
+
+    /**
+     * Пересчитывает количество сообщений пользователей
+     */
+    public function clearCache(array $args, string $method): Page
+    {
+        $this->c->Lang->load('validator');
+        $this->c->Lang->load('admin_maintenance');
+
+        $v = $this->c->Validator->reset()
+            ->addValidators([
+            ])->addRules([
+                'confirm' => 'checkbox',
+                'token'   => 'token:AdminMaintenanceClear',
+            ])->addAliases([
+            ])->addArguments([
+            ])->addMessages([
+            ]);
+
+        if (
+            ! $v->validation($_POST)
+            || '1' !== $v->confirm
+        ) {
+            return $this->c->Message->message(
+                '1' !== $v->confirm ? 'No confirm redirect' : ($this->c->Csrf->getError() ?? 'Bad token')
+            );
+        }
+
+        if (true !== $this->c->Cache->clear()) {
+            throw new RuntimeException('Unable to clear cache');
+        }
+
+        return $this->c->Redirect->page('AdminMaintenance')->message('Clear cache redirect', FORK_MESS_SUCC);
+    }
 }

app/lang/en/admin_maintenance.po

@@ -46,7 +46,7 @@ msgid "Rebuild index"
 msgstr "Rebuild index"
 
 msgid "Rebuilding search index"
-msgstr "Rebuilding search index"
+msgstr "Rebuild search index"
 
 msgid "Rebuilding index end"
 msgstr "Rebuilding index is over."
@@ -68,3 +68,15 @@ msgstr "The message that will be displayed to users when the board is in mainten
 
 msgid "Default maintenance message"
 msgstr "The forums are temporarily down for maintenance. <b>Please try again in a few minutes.</b>"
+
+msgid "Clear cache head"
+msgstr "Clear cache"
+
+msgid "Clearing the cache"
+msgstr "Clear cache"
+
+msgid "Clear"
+msgstr "Clear"
+
+msgid "Clear cache redirect"
+msgstr "Board cache cleared."

app/lang/ru/admin_maintenance.po

@@ -68,3 +68,15 @@ msgstr "Сообщение, которое будет показываться
 
 msgid "Default maintenance message"
 msgstr "Форум временно закрыт на обслуживание. <b>Пожалуйста, попробуйте зайти позже.</b>"
+
+msgid "Clear cache head"
+msgstr "Очистка кэша"
+
+msgid "Clearing the cache"
+msgstr "Очистка кэша"
+
+msgid "Clear"
+msgstr "Очистить"
+
+msgid "Clear cache redirect"
+msgstr "Кэш форума очищен."

app/templates/admin/maintenance.forkbb.php

@@ -12,6 +12,14 @@
         <div class="f-fdiv">
 @if ($form = $p->formRebuild)
     @include ('layouts/form')
+@endif
+        </div>
+      </section>
+      <section id="fork-clcch" class="f-admin">
+        <h2>{!! __('Clear cache head') !!}</h2>
+        <div class="f-fdiv">
+@if ($form = $p->formClearCache)
+    @include ('layouts/form')
 @endif
         </div>
       </section>

public/style/ForkBB/admin.css

@@ -1031,6 +1031,13 @@
   }
 }
 
+/****************************************/
+/* Админка/Обслуживание                 */
+/****************************************/
+#fork-clcch #id-dl-confirm > dt {
+  display: none;
+}
+
 /****************************************/
 /* Админка/Провайдеры                   */
 /****************************************/