具有动态属性的种子相关模型

Question

我正在尝试为用户提供相关图片。每个用户最多可以有 5 张图像。图像表有一个位置字段，它是从 0 到 4 的整数。

这是我的代码：

factory(App\User::class, 50)->create()->each(function($user) {
    $user->images()->saveMany(factory(\App\Image::class, rand(2, 5))->make());
});


$factory->define(Goods\Image::class, function(Faker\Generator $faker) {

    return [
        'id'            => $faker->unique()->uuid,
        'position'      => ????
    ];
});

如何设置位置值，其值将从0-4递增（根据图像编号）。

我也试过了，但是位置一直都是0：

factory(App\User::class, 50)->create()->each(function($user) {
    $position = 0;
    $user->images()->saveMany(factory(\App\Image::class, rand(2, 5))->make([
        'position' => $position++
    ]));
});

Answer 1

尝试一下：

$position = 0;
factory(App\User::class, 50)->create()->each(function($user) {
    $user->images()->saveMany(factory(\App\Image::class, rand(2, 5))->make([
        'position' => $position++
    ]));
});