search

Home  >  Q&A  >  body text

lumen - laravel relationship query, there will be a large number of queries, how to solve it?

        $data = Model\Recipe::with(['ingredient', 'tags'])->find($recipeId);

        if (empty($data)) {
            return ResponseData::set($data);
        }

        $data->getInfoImage()->getListImage()->getPrice($locale);
        return ResponseData::set($data);

The above code contains 13 database queries. Although each query on this machine is very fast, it cannot handle the large number of queries.

Basic data are as follows:

{
    "SQL":"select * from `ak_recipe` where `ak_recipe`.`id` = ? and `ak_recipe`.`deleted_at` is null limit 1",
    "bindings":[
        "148"
    ],
    "time":0.00037
},
{
    "SQL":"select * from `ak_recipe_image` where `type` = ? and `recipe_id` = ? and `ak_recipe_image`.`deleted_at` is null limit 1",
    "bindings":[
        2,
        148
    ],
    "time":0.00046
},
{
    "SQL":"select * from `ak_recipe_image` where `type` = ? and `recipe_id` = ? and `ak_recipe_image`.`deleted_at` is null limit 1",
    "bindings":[
        1,
        148
    ],
    "time":0.00035
},
// 。。。。

If the database is switched from the local machine to the intranet, then the execution data of each SQL will basically double.

Data are as follows:

{
    "SQL":"select * from `ak_recipe` where `ak_recipe`.`id` = ? and `ak_recipe`.`deleted_at` is null limit 1",
    "bindings":[
        "148"
    ],
    "time":0.00073
},
{
    "SQL":"select * from `ak_recipe_image` where `type` = ? and `recipe_id` = ? and `ak_recipe_image`.`deleted_at` is null limit 1",
    "bindings":[
        2,
        148
    ],
    "time":0.00075
},
{
    "SQL":"select * from `ak_recipe_image` where `type` = ? and `recipe_id` = ? and `ak_recipe_image`.`deleted_at` is null limit 1",
    "bindings":[
        1,
        148
    ],
    "time":0.00077
},
// 。。。。

I don’t know how everyone handles this kind of relationship query? Should I write JOIN myself to query the code? Or is there another way to resolve this issue?

为情所困为情所困2772 days ago483

reply all(3)I'll reply

  • ringa_lee

    ringa_lee2017-05-16 16:54:17

    ORM efficiency is relatively slow. If you are looking for the best performance, you might as well try using the DB class directly

    reply
    0
  • 大家讲道理

    大家讲道理2017-05-16 16:54:17

    There shouldn’t be any need to write native SQL. After modification$data->getInfoImage()->getListImage()->getPrice($locale);I looked at the documentation and found that the additional conditions for specifying preloaded queries in relation are similar to this:

    $users = App\User::with(['posts' => function ($query) {
        $query->where('title', 'like', '%first%');
    
    }])->get();
    

    Documentation link

    reply
    0
  • 天蓬老师

    天蓬老师2017-05-16 16:54:17

    Replace Eloquent ORM with DB facade.

    reply
    0
  • Cancelreply