Level 50
Use for each loop. for's argument is only resolved once.
May 23, 2022
13
Level 4
Getting a random row in a seed?
In my seed, I want to created 20 rows in my like table...
Like::factory()->count(20)->for(
Post::inRandomOrder()->first() ?? Post::factory(), 'likeable'
)->create();
In the for I get a random post or if no post is available I create one.
The issue is, all 20 rows created in the like table have the same "random" post id, almost as if the random selector is only running once.
Why is this the case?
Level 4
@Niush could you show an example how foreach works with factories?
Level 13
Try this in your factory file ->
use App\Models\Post;
$factory->define(App\Like::class, function (Faker\Generator $faker) {
return [
'user_id' => Post::all()->random()->id,
'time' => now();
];
});
or Try a for loop ->
for ($x = 0; $x <= 20; $x++) {
Like::factory()->create([
'post_id' => Post::all()->random()->id ?? Post::factory(),
]);
}
1 like
Level 39
With only one post created, the loop will only create the same post.
You need 2 loops, one 2 create posts and the second to create likes.
Feel free to give this example.
1 like
Level 13
Level 4
@iftekhs this does not answer the question, it's about calling the relationship from the seed, not using inline relations on the factory.
Level 13
@panthro I don't understand don't you want 20 like table rows with random post_id? or basically the POST related to it?
Level 4
@iftekhs I want to create 20 rows for a polymorphic relation, but a random polymorphic relation. See my original post. It's using the same random row each time.
Level 13
Maybe try this ->
$post = Post::inRandomOrder()->first();
if(!$post) {
$post = Post::factory()->create();
}
Like::factory(20)->create([
'post_id' => $post->id,
]);
or for many posts ->
$posts = Post::inRandomOrder()->limit(5)->get();
if(!$posts) {
$posts = Post::factory(5)->create();
}
foreach($posts as $post){
Like::factory(20)->create([
'post_id' => $post->id,
]);
}
Level 4
@iftekhs this would not work with polymorphic relationships.
Level 13
@panthro Check this i think this is what you are looking for -> https://laracasts.com/discuss/channels/general-discussion/how-do-i-seed-many-to-many-polymorphic-relationships?page=1
Level 4
@iftekhs no that does not answer the question.
Level 5
Try this .
class AuthorSeeder extends Seeder { /** * Run the database seeds. */ public function run(): void { for ($i = 0; $i < 12; $i++) { $this->seed(rand(1,10)); } }
public function seed(int $count)
{
Author::factory()->has(Post::factory($count))->create();
}
}
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