文章分类由1变多

app/Models/Category.php

@@ -6,6 +6,7 @@ use App\Models\Traits\HasOneCover;
 use Encore\Admin\Traits\AdminBuilder;
 use Encore\Admin\Traits\ModelTree;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class Category extends Model
@@ -44,7 +45,7 @@ class Category extends Model
                 return $this->hasOne(Article::class, 'id', 'article_id');
                 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);
@@ -64,4 +65,9 @@ class Category extends Model
         return $this->hasMany(__CLASS__, 'parent_id');
     }
 
+    public function articles(): BelongsToMany
+    {
+        return $this->belongsToMany(Article::class);
+    }
+
 }