文章对应分类多个

app/Models/Category.php

@@ -4,6 +4,7 @@ namespace App\Models;
 
 use Encore\Admin\Traits\AdminBuilder;
 use Encore\Admin\Traits\ModelTree;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 
 class Category extends Model
 {
@@ -36,7 +37,7 @@ class Category extends Model
                 return $this->belongsTo(Article::class);
                 break;
             case self::TYPE_ARTICLE:
-                return $this->hasMany(Article::class);
+                return $this->belongsToMany(Article::class);
                 break;
             case self::TYPE_ADVERT:
                 return $this->hasMany(Advert::class);
@@ -60,6 +61,11 @@ class Category extends Model
     {
         return $this->belongsTo(Article::class);
     }
+    
+    public function articles(): BelongsToMany
+    {
+        return $this->belongsToMany(Article::class);
+    }
 
     /**
      * Notes: 获取当前分类及子分类ID