Error with Str::slug upgrading laravel 6 app into 8 - laravel

Question

I try to upgrade my laravel 6 app into 8 and got error :
TypeError
call_user_func(): Argument #1 ($callback) must be a valid callback, class "Str" not found
at app/Http/Traits/HasSlug.php:30
26▕ $slugger = config('tags.slugger');
27▕
28▕ $slugger = $slugger ?: '\Str::slug';
29▕
➜ 30▕ return call_user_func($slugger, $this->getTranslation('name', $locale));
31▕ }
32▕ }
33▕
1 app/Http/Traits/HasSlug.php:30
call_user_func()
2 app/Http/Traits/HasSlug.php:18
App\Tag::generateSlug()
In file Http/Traits/HasSlug.php :
<?php
//namespace Spatie\Tags;
namespace App\Http\Traits;
use Illuminate\Support\Str;
use Illuminate\Database\Eloquent\Model;
trait HasSlug
{
public static function bootHasSlug()
{
static::saving(function (Model $model) {
collect($model->getTranslatedLocales('name'))
->each(function (string $locale) use ($model) {
with(new self)->info( $locale,'bootHasSlug $locale::' );
$model->setTranslation('slug', $locale, $model->generateSlug($locale));
});
});
}
protected function generateSlug(string $locale): string
{
$slugger = config('tags.slugger');
$slugger = $slugger ?: '\Str::slug';
return call_user_func($slugger, $this->getTranslation('name', $locale));
}
}
I know this issue with Str::slug when upgrading laravel, but I am not sure in which way can it be fixed here ?
UPDATED PART :
No that does not work.
If I remake :
use Illuminate\Support\Str;
use Illuminate\Database\Eloquent\Model;
trait HasSlug
{
public static function bootHasSlug()
{
static::saving(function (Model $model) {
collect($model->getTranslatedLocales('name'))
->each(function (string $locale) use ($model) {
with(new self)->info( $locale,'bootHasSlug $locale::' );
$model->setTranslation('slug', $locale, $model->generateSlug($locale));
});
});
}
protected function generateSlug(string $locale): string
{
with(new self)->info( $locale, 'generateSlug $locale::' );
$slugger = config('tags.slugger');
$slugger = $slugger ?: \Illuminate\Support\Str::slug;
// $slugger = $slugger ?: \Illuminate\Support\Str::class.'::slug';
// $slugger = $slugger ?: 'Str::slug';
return call_user_func($slugger, $this->getTranslation('name', $locale));
}
Running migrations I got error:
TypeError
call_user_func(): Argument #1 ($callback) must be a valid callback, class "Str" not found
at app/Http/Traits/HasSlug.php:33
29▕ $slugger = $slugger ?: \Illuminate\Support\Str::slug;
30▕ // $slugger = $slugger ?: \Illuminate\Support\Str::class.'::slug';
31▕ // $slugger = $slugger ?: 'Str::slug';
32▕
➜ 33▕ return call_user_func($slugger, $this->getTranslation('name', $locale));
34▕ }
35▕ }
36▕
1 app/Http/Traits/HasSlug.php:33
call_user_func()
2 app/Http/Traits/HasSlug.php:18
App\Tag::generateSlug()
But in blade templates I can use
\Illuminate\Support\Str::plural(
$ php artisan --version
Laravel Framework 8.83.0
UPDATED PART 2:
I opened file https://github.com/spatie/laravel-tags/blob/main/src/HasSlug.php
and copied content of it into my app/Http/Traits/HasSlug.php :
<?php
// namespace Spatie\HasSlug; // As namespace seemed invalid for me I tried in this way, but failed anyway
namespace Spatie\Tags;
use Illuminate\Database\Eloquent\Model;
trait HasSlug
{
public static function bootHasSlug()
{
static::saving(function (Model $model) {
collect($model->getTranslatedLocales('name'))
->each(fn (string $locale) => $model->setTranslation(
'slug',
$locale,
$model->generateSlug($locale)
));
});
}
protected function generateSlug(string $locale): string
{
$slugger = config('tags.slugger');
$slugger ??= '\Illuminate\Support\Str::slug';
return call_user_func($slugger, $this->getTranslation('name', $locale));
}
}
In composer.json I updated line to the latest version:
"spatie/laravel-tags": "^4.3.0",
and run
composer update
with success.
I supposed that this version is relative to laravel 8
But running migrations I got next error :
Symfony\Component\ErrorHandler\Error\FatalError
Trait "App\Http\Traits\HasSlug" not found
at app/Tag.php:19
15▕
16▕
17▕
18▕
➜ 19▕ class Tag extends Model implements Sortable
20▕ {
21▕ use funcsTrait;
22▕
23▕ use SortableTrait, HasTranslations, HasSlug;
I am not sure why I have app/Http/Traits/HasSlug.php updare my app/, but looks like I need it there...
Thanks!

Answer 1

Instead of using call_user_func, I used app() to instantiate the slugger defined in config/tags.php.
config/tags.php
<?php
use Illuminate\Support\Str;
return [
'slugger' => [
// the slugger class. Will be instantiated with whatever is passed in the args.
// In this case: new Str(...[]) <- no args. Same as new Str() or new Str
'class' => [
'name' => Str::class,
'args' => [],
],
// the slugger method. If any extra args are needed, they will be used.
// In this case: $slugger->slug($string, ...[]) <- no args, same as $slugger->slug($string)
'method' => [
'name' => 'slug',
'args' => [],
],
],
];
app/Http/Traits/HasSlug.php
<?php
namespace App\Http\Traits;
use Illuminate\Database\Eloquent\Model;
trait HasSlug
{
protected function generateSlug(string $locale): string
{
// use Str's slug method by default.
list($class, $class_args, $method, $method_args) = [
config('tags.slugger.class.name', 'Illuminate\Support\Str'),
config('tags.slugger.class.args', []),
config('tags.slugger.method.name', 'slug'),
config('tags.slugger.method.args', []),
];
$string = $this->getTranslation('name', $locale);
return app($class, $class_args)->{$method}(...[$string, ...$method_args]);
}
}