Laravel 管理插件，如何为每一行只调用一次函数

Question

我有一个 Laravel 项目，上面有 Laravel 管理员运行。
在“用户”页面上，我试图显示来自 users table 和 pocket money table 的信息，如下所示：

...

use Encore\Admin\Controllers\AdminController;
use Encore\Admin\Grid;
use HerazikaServer\Models\User;
use HerazikaServer\Models\PocketMoney;

...

class UserController extends AdminController
{
    protected function grid()
    {
        $grid = new Grid(new User());
        // I'm trying to call this function only once for each row like so
        // $current = PocketMoney::getCurrentMonthDetails($grid->id);

        $grid->column('id', __('Id'));
        $grid->column('nickname', __('Nickname'));

        ...

        $grid->column('current pocket money period')->display(function() {
            $current = PocketMoney::getCurrentMonthDetails($this->id);
            return isset($current) ? $current->current_start_date.' '.$current->current_end_date : '';
        })->style('min-width:100px');
        $grid->column('daily objective')->display(function() {
            $current = PocketMoney::getCurrentMonthDetails($this->id);
            return isset($current) ? $current->daily_objective : '';
        });
        $grid->column('monthly objective')->display(function() {
            $current = PocketMoney::getCurrentMonthDetails($this->id);
            return isset($current) ? $current->monthly_objective : '';
        });
        $grid->column('attendance')->display(function() {
            $current = PocketMoney::getCurrentMonthDetails($this->id);
            return isset($current) ? $current->attendance.'/'.$current->monthly_objective : '';
        });
        
        ...

        return $grid;
    }
}

但是我不得不为每一列调用 $current = PocketMoney::getCurrentMonthDetails($this->id);（总共大约 20 次）。有没有办法只调用一次函数？
我尝试了一些类似 getCurrentMonthDetails($grid->id); 的方法。但它显然会引发未定义的错误。

Answer 1

您可以尝试这些解决方案：

1、从哪里启动功能，可以试试

$items = PocketMoney::query()->where('...')->limit($page,$limit)->all()->keyBy('id');
//..usage
$grid->column('monthly objective')->display(function() use($items) {
            $current = $items[$this->id]
            return isset($current) ? $current->monthly_objective : '';
        });

2、调用$grid->column()的地方可以试试:

function loadPocketMoney($id){
    if(!$item = cache()->get('product_'.$id)){
        $item = PocketMoney::getCurrentMonthDetails($id);
        cache()->set('product_'.$id,$item);
    }
    return $item;
}

$grid->column('monthly objective')->display(function() use($items) {
    $current = cache()->get('PocketMoney_id')?:loadPocketMoney($this->id)
    return isset($current) ? $current->monthly_objective : '';
});

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