baoshi-was/database/factories/OwnerReportFactory.php

<?php

/** @var \Illuminate\Database\Eloquent\Factory $factory */

use App\OwnerReport;
use Faker\Generator as Faker;
$owner = \App\Owner::query()->first();
$factory->define(OwnerReport::class, function (Faker $faker)use($owner) {
    if (!$owner)$owner = \App\Owner::query()->first();
    return [
//        "owner_id" => $owner ? $owner->id : factory(App\Owner::class),                     //货主ID
        "counting_month" => $faker->date(),               //结算月
        "daily_average_order_amount" => mt_rand(0,10000),  //日均单量
        "current_month_counting_area" => mt_rand(100,100000) / 50,  //结算月盘点面积
        "last_month_counting_area"   => mt_rand(100,100000) / 50,  //结算月上月盘点面积
//        "owner_bill_report_id"  =>factory(App\OwnerBillReport::class),        //账单ID
    ];
});