购物车列表联查优化

@@ -15,11 +15,11 @@ class Cart extends Model
 
     public function goods()
     {
-        return $this->belongsTo('Goods','goods_id','goods_id');
+        return $this->belongsTo('Goods', 'goods_id', 'goods_id', [], 'INNER')->setEagerlyType(0);
     }
 
     public function sku()
     {
-        return $this->belongsTo('GoodsSpec','sku_id','goods_spec_id');
+        return $this->belongsTo('GoodsSpec', 'sku_id', 'goods_spec_id', [], 'INNER')->setEagerlyType(0);
     }
 }
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