办事指南分类

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

@@ -6,5 +6,31 @@ use think\admin\Model;
 
 class CmsTutorial extends Model
 {
+    /**
+     * 定义与分类的多对多关系
+     */
+    public function categories()
+    {
+        return $this->belongsToMany(CmsCategory::class, CmsTutorialCategory::class, 'cid', 'tid');
+    }
 
+    /**
+     * 获取分类ID列表
+     */
+    public function getCategoryIdsAttr()
+    {
+        return $this->categories()->column('id');
+    }
+
+    public function setCategoryIdsAttr($value)
+    {
+        if ($this->isExists()) {
+            $this->categories()->detach();
+            if (is_array($value)) {
+                foreach ($value as $cid) {
+                    $this->categories()->attach($cid);
+                }
+            }
+        }
+    }
 }

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

@@ -0,0 +1,24 @@
+<?php
+
+namespace plugin\cms\model;
+
+use think\model\Pivot;
+
+class CmsTutorialCategory extends Pivot
+{
+    /**
+     * 关联分类模型
+     */
+    public function category()
+    {
+        return $this->belongsTo(CmsCategory::class, 'cid', 'id');
+    }
+
+    /**
+     * 关联办事指南模型
+     */
+    public function tutorial()
+    {
+        return $this->belongsTo(CmsTutorial::class, 'tid', 'id');
+    }
+}