Re-migrate code

services/companies_service.go

@@ -37,7 +37,7 @@ func (s *CompaniesService) FindAll(page int, limit int, search string) ([]models
 		return nil, 0, 0, errors.New("查询企业总数失败")
 	}
 
-	result := db.Order("updated_at DESC").Offset(offset).Limit(limit).Find(&companies)
+	result := db.Preload("Serials").Order("updated_at DESC").Offset(offset).Limit(limit).Find(&companies)
 	if result.Error != nil {
 		return nil, 0, 0, errors.New("查询企业列表失败")
 	}