add shipping rules

app/Models/Shop/Variation.php

@@ -2,17 +2,17 @@
 
 namespace App\Models\Shop;
 
-use Illuminate\Database\Eloquent\Model;
-
 use App\Traits\Model\HasComments;
+use Illuminate\Database\Eloquent\Model;
 
 class Variation extends Model
 {
     use HasComments;
-    
+
     protected $guarded = ['id'];
+
     protected $table = 'shop_variations';
-    
+
     public function package()
     {
         return $this->belongsTo(Package::class);
@@ -30,6 +30,6 @@ class Variation extends Model
 
     public function scopeByPackage($query, $package_id)
     {
-        return $query->where($this->table . '.package_id', $package_id);
+        return $query->where($this->table.'.package_id', $package_id);
     }
 }