Fixes on adding price & errors

app/Models/Shop/PriceList.php

@@ -26,4 +26,19 @@ class PriceList extends Model
     {
         return $this->hasMany('App\Models\Shop\PriceListValue');
     }
+
+    public function scopeByTariff($query, $id)
+    {
+        return $query->where('tariff_id', $id); 
+    }
+
+    public function scopeBySaleChannel($query, $id)
+    {
+        return $query->where('sale_channel_id', $id); 
+    }
+
+    public function scopeByStatus($query, $id)
+    {
+        return $query->where('status_id', $id); 
+    }
 }