Introduce MigrationList controller & widget

application/controllers/MigrationListController.php

@@ -0,0 +1,45 @@
+<?php
+
+/* Icinga Web 2 | (c) 2023 Icinga GmbH | GPLv2+ */
+
+namespace Icinga\Controllers;
+
+use Icinga\Application\Hook\MigrationHook;
+use Icinga\Web\View\MigrationList;
+use ipl\Html\HtmlElement;
+use ipl\Html\HtmlString;
+use ipl\Web\Compat\CompatController;
+
+class MigrationListController extends CompatController
+{
+    public function indexAction()
+    {
+        $migrations = MigrationHook::getPendingMigrations()->select();
+        $this->setupSortControl(
+            [
+                'name'  => $this->translate('Name'),
+                'state' => $this->translate('State')
+            ],
+            $migrations,
+            ['name' => 'DESC']
+        );
+        $this->setupLimitControl();
+        $this->setupPaginationControl($migrations);
+        $this->setupFilterControl($migrations, [
+            'name'      => $this->translate('Name'),
+            'state'     => $this->translate('State'),
+        ], ['name']);
+
+        $this->addControl(HtmlString::create((string) $this->view->paginator));
+        $this->addControl(HtmlElement::create('div', ['class' => 'sort-controls-container'], [
+            HtmlString::create((string) $this->view->limiter),
+            HtmlString::create((string) $this->view->sortBox)
+        ]));
+        $this->addControl(HtmlString::create((string) $this->view->filterEditor));
+
+        $this->addTitleTab($this->translate('Migrations'));
+        $this->getTabs()->disableLegacyExtensions();
+        $this->setAutorefreshInterval(10);
+        $this->addContent(new MigrationList($migrations));
+    }
+}

library/Icinga/Web/View/MigrationList.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace Icinga\Web\View;
+
+use Icinga\Authentication\Auth;
+use ipl\Html\FormattedString;
+use ipl\Html\HtmlElement;
+use ipl\Html\Table;
+use ipl\Html\Text;
+use ipl\Web\Common\BaseTarget;
+use ipl\Web\Widget\Link;
+use Traversable;
+
+class MigrationList extends Table
+{
+    use BaseTarget;
+
+    protected $defaultAttributes = ['class' => ['app-health', 'common-table', 'table-row-selectable']];
+
+    /** @var Traversable */
+    protected $migrations = [];
+
+    public function __construct(Traversable $migrations)
+    {
+        $this->migrations = $migrations;
+    }
+
+    protected function assemble()
+    {
+        if (empty($this->migrations)) {
+            $this->addHtml(HtmlElement::create('pre', null, Text::create(t('There are no pending migrations'))));
+
+            return;
+        }
+
+        $hasPermission = Auth::getInstance()->hasPermission('application/migrations');
+        foreach ($this->migrations as $migration) {
+            $attributes = [
+                'data-icinga-modal'   => true,
+                'data-no-icinga-ajax' => true
+            ];
+
+            $name = HtmlElement::create('span', null, $migration->name);
+            $this->addHtml(
+                Table::tr([
+                    Table::th(HtmlElement::create('span', ['class' => ['ball', 'ball-size-xl', $migration->state]])),
+                    Table::td([
+                        new HtmlElement(
+                            'header',
+                            null,
+                            FormattedString::create(
+                                t(
+                                    '%s has %s %s %s migrations',
+                                    '<name> has <count-migrations> <migration-type> <state-text> migrations'
+                                ),
+                                $migration->url && $hasPermission
+                                    ? new Link($name, $migration->url, $attributes)
+                                    : $name,
+                                HtmlElement::create('span', null, $migration->pending ?: ""),
+                                HtmlElement::create('strong', null, $migration->stateText),
+                                $migration->db
+                                    ? HtmlElement::create('span', null, 'DB')
+                                    : HtmlElement::create('span', null, 'PHP-Code')
+                            )
+                        ),
+                        HtmlElement::create('section', null, $migration->description)
+                    ])
+                ], $attributes)
+            );
+        }
+    }
+}