initial

var/Widget/Metas/Category/Admin.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace Widget\Metas\Category;
+
+use Typecho\Common;
+use Typecho\Db;
+use Typecho\Widget\Exception;
+use Widget\Base\Metas;
+use Widget\Base\TreeTrait;
+
+if (!defined('__TYPECHO_ROOT_DIR__')) {
+    exit;
+}
+
+/**
+ * Category Admin
+ */
+class Admin extends Metas
+{
+    use InitTreeRowsTrait;
+    use TreeTrait;
+
+    /**
+     * @var int Parent category
+     */
+    private int $parentId = 0;
+
+    /**
+     * 执行函数
+     */
+    public function execute()
+    {
+        $this->parentId = $this->request->filter('int')->get('parent', 0);
+        $this->pushAll($this->getRows($this->getChildIds($this->parentId)));
+    }
+
+    /**
+     * 向上的返回链接
+     *
+     * @throws Db\Exception
+     */
+    public function backLink()
+    {
+        if ($this->parentId) {
+            $category = $this->getRow($this->parentId);
+
+            if (!empty($category)) {
+                $parent = $this->getRow($category['parent']);
+
+                if ($parent) {
+                    echo '<a href="'
+                        . Common::url('manage-categories.php?parent=' . $parent['mid'], $this->options->adminUrl)
+                        . '">';
+                } else {
+                    echo '<a href="' . Common::url('manage-categories.php', $this->options->adminUrl) . '">';
+                }
+
+                echo '&laquo; ';
+                _e('返回父级分类');
+                echo '</a>';
+            }
+        }
+    }
+
+    /**
+     * 获取菜单标题
+     *
+     * @return string|null
+     * @throws Db\Exception|Exception
+     */
+    public function getMenuTitle(): ?string
+    {
+        if ($this->parentId) {
+            $category = $this->getRow($this->parentId);
+
+            if (!empty($category)) {
+                return _t('管理 %s 的子分类', $category['name']);
+            }
+        } else {
+            return null;
+        }
+
+        throw new Exception(_t('分类不存在'), 404);
+    }
+
+    /**
+     * 获取菜单标题
+     *
+     * @return string
+     */
+    public function getAddLink(): string
+    {
+        return 'category.php' . ($this->parentId ? '?parent=' . $this->parentId : '');
+    }
+}