novelPromote/app/Services/NovelService...

<?php


namespace App\Services;


use App\Models\Order;

class NovelService
{
    /**
     * 小说人气数据
     * */
    public static function popularityNovelData($keyword, $sort, $startDate, $endDate, $page, $pageSize)
    {
        list($sortField, $sortType) = self::getSortInfo($sort);
        list($list, $count) = Order::popularityNovelData($keyword, $sortField, $sortType, $startDate, $endDate, $page, $pageSize);

        return [$list, $count];
    }

    /**
     * 获取排序字段和类型
     * */
    public static function getSortInfo($sort)
    {
        switch($sort) {
            case 1:
            case 2:
                $sortField = 'watching_user';
                break;
            case 3:
            case 4:
                $sortField = 'charge_total';
                break;
            default:
                $sortField = 'watching_user';
                break;
        }

        $sortType = $sort % 2 ? 'desc' : 'asc';

        return [$sortField, $sortType];
    }
}