first(); $factory->define(OwnerInStorageRule::class, function (Faker $faker)use(&$unit){ if (!$unit)$unit = \App\Unit::query()->first(); return [ "owner_price_operation_id" => factory(\App\OwnerPriceOperation::class), //作业计费ID "amount" => mt_rand(0,100), //计量 "unit_id" => $unit ? $unit->id : factory(\App\Unit::class),//单位ID "unit_price" =>mt_rand(10,100) / 16, //单价 ]; });