initial

var/Widget/Metas/Category/Related.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Widget\Metas\Category;
+
+use Typecho\Db\Exception;
+use Widget\Base\Metas;
+use Widget\Base\TreeTrait;
+
+if (!defined('__TYPECHO_ROOT_DIR__')) {
+    exit;
+}
+
+class Related extends Metas
+{
+    use InitTreeRowsTrait;
+    use TreeTrait;
+
+    /**
+     * @return void
+     * @throws Exception
+     */
+    public function execute()
+    {
+        $ids = array_column($this->db->fetchAll($this->select('table.metas.mid')
+            ->join('table.relationships', 'table.relationships.mid = table.metas.mid')
+            ->where('table.relationships.cid = ?', $this->parameter->cid)
+            ->where('table.metas.type = ?', 'category')), 'mid');
+
+        usort($ids, function ($a, $b) {
+            $orderA = array_search($a, $this->orders);
+            $orderB = array_search($b, $this->orders);
+
+            return $orderA <=> $orderB;
+        });
+
+        $this->pushAll($this->getRows($ids));
+    }
+}