添加关系到Laravel工厂模型
我试图添加一个关系到一个工厂模型做一些数据库种子如下 - 注意我试图给每个用户添加2个职位
public function run()
{
factory(AppUser::class, 50)->create()->each(function($u) {
$u->posts()->save(factory(AppPost::class, 2)->make());
});
}
但它抛出以下错误
Argument 1 passed to IlluminateDatabaseEloquentRelationsHasOneOrMany::s
ave() must be an instance of IlluminateDatabaseEloquentModel, instance
of IlluminateDatabaseEloquentCollection given
我认为它与保存一个集合有关。 如果通过分别调用每个工厂模型来重新编写代码，它似乎可以工作。 显然这不是很优雅，因为如果我想坚持10或发布给每个用户，那么我不得不decalare 10或行，除非我使用某种for循环。
public function run()
{
factory(AppUser::class, 50)->create()->each(function($u) {
$u->posts()->save(factory(AppPost::class)->make());
$u->posts()->save(factory(AppPost::class)->make());
});
}
* 更新 *
有没有什么办法可以将模型工厂嵌入第三层？
public function run()
{
factory(AppUser::class, 50)
->create()
->each(function($u) {
$u->posts()->saveMany(factory(AppPost::class, 2)
->make()
->each(function($p){
$p->comments()->save(factory(AppComment::class)->make());
}));
});
}
尝试这个。 它为我工作：
factory(AppModelsAuthUser::class, 300)->create()->each(function ($s) {
$s->spots()->saveMany(factory(AppModelsSpotsParking::class, 2)->create()->each(function ($u) {
$u->pricing()->save(factory(AppModelsPaymentPricing::class)->make());
}));
$s->info()->save(factory(AppModelsUserData::class)->make());
});
对于第三级嵌套关系，如果要使用适当的相应外键创建数据，则可以循环创建帖子的所有结果，如下所示：
factory(AppUser::class, 50)->create()->each(function($u) {
$u->posts()
->saveMany( factory(AppPost::class, 2)->make() )
->each(function($p){
$p->comments()->save(factory(AppComment::class)->make());
});
});