add offers count, & minor fixes code standards

app/Datatables/Shop/OffersDataTable.php

@@ -12,17 +12,18 @@ class OffersDataTable extends DataTable
 
     public function query(Offer $model)
     {
-        $model = $model->with(['article','variation','tariff'])->select(['shop_offers.*']);
-        return self::buildQuery($model);
+        $model = $model->with(['article.article_nature', 'variation', 'tariff']);
+        return $this->buildQuery($model);
     }
 
     protected function getColumns()
     {
         return [
         Column::make('article.name')->title('Article'),
+        Column::make('article.article_nature.name')->title('Nature'),
         Column::make('variation.name')->title('Déclinaison'),
         Column::make('tariff.name')->title('Tarif'),
-        self::makeColumnButtons(),
+        $this->makeColumnButtons(),
         ];
     }
 }