我正在尝试加载 Category(children's) 以在 html 表中查看它们并像这样对它们进行分页:
// show category children's
public function show(subCategory $sections)
{
// Eager Loading the relationship
$sections->with('chlidrens');
// paginate the category - childrens
$result = $sections->chlidrens()->orderBy('created_at','desc')->paginate(5);
return view('CompanySections.show',compact('sections','result'));
}
我已经记录了第一页的 sql 查询,如下所示:
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `catnodestreetable` where `id` = ? limit 1"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `customers` where `customers`.`id` = ? limit 1"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select count(*) as aggregate from `catnodestreetable` where `catnodestreetable`.`node_parent_id` = ? and `catnodestreetable`.`node_parent_id` is not null"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `catnodestreetable` where `catnodestreetable`.`node_parent_id` = ? and `catnodestreetable`.`node_parent_id` is not null order by `created_at` desc limit 5 offset 0"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `categories` where `categories`.`id` = ? limit 1"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `clothes` where `clothes`.`item_id` = ? and `clothes`.`item_id` is not null limit 1"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `clothes` where `clothes`.`item_id` = ? and `clothes`.`item_id` is not null limit 1"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `clothes` where `clothes`.`item_id` = ? and `clothes`.`item_id` is not null limit 1"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `clothes` where `clothes`.`item_id` = ? and `clothes`.`item_id` is not null limit 1"}
[2016-12-28 08:19:20] local.INFO: query {"query":"select * from `clothes` where `clothes`.`item_id` = ? and `clothes`.`item_id` is not null limit 1"}
我的问题:此代码是否导致 N+1 !如果确实如此...如何解决?