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plugs/think-plugs-cms/src/model/CmsArticle.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace plugin\cms\model;
+
+use think\admin\Model;
+
+class CmsArticle extends Model
+{
+    public function category()
+    {
+        return $this->belongsToMany(CmsCategory::class, CmsCateArticle::class,
+            'cid', 'aid');
+    }
+
+    public function cateids()
+    {
+        return $this->hasMany(CmsCateArticle::class, 'aid');
+    }
+
+    public function getCateIdsAttr()
+    {
+        return $this->cateids->column('cid');
+    }
+}