Not found for some routes - laravel

Question

I have a problem with some of my routes in Laravel. this my code in web.php file:
Route::group(['namespace' => 'Admin', 'middleware' => ['auth:web']], function () {
Route::get('/admin/audio/create/{audio?}', 'AdminAudioController#create')->name('admin.audioCreate');
Route::get('/admin/article/create/{article?}', 'AdminArticleController#create')->name('admin.articleCreate');
}
and this my link in blade
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<i class="fa fa-edit"></i>
and this are my Controllers:
AdminAudioController
<?php
namespace App\Http\Controllers\Admin;
use App\Article;
use App\Http\Requests\ArticleRequest;
class AdminArticleController extends AdminController
{
public function index()
{
$articleList = Article::where('removed', false)->latest()->paginate(10);
return view('admin.article.archive', compact('articleList'));
}
public function create(Article $article = null)
{
return view('admin.article.create', compact('article'));
}
}
AdminArticleController
<?php
namespace App\Http\Controllers\Admin;
use App\Article;
use App\Http\Requests\ArticleRequest;
class AdminArticleController extends AdminController
{
public function index()
{
$articleList = Article::where('removed', false)->latest()->paginate(10);
return view('admin.article.archive', compact('articleList'));
}
public function create(Article $article = null)
{
return view('admin.article.create', compact('article'));
}
}
but my second link with name "admin.articleCreate" doesn't work and get "404 not found" what should I do?
and this is my article model
class Article extends Model
{
protected $primaryKey = 'articleId';
use Sluggable;
protected $fillable = [
'title',
'subTitle1', 'subTitle2',
'image',
'description',
'body',
'enable',
];
protected $casts = [
'image' => 'array'
];
/**
* Return the sluggable configuration array for this model.
*
* #return array
*/
public function sluggable(): array
{
return [
'slug' => [
'source' => 'title'
]
];
}
public function getRouteKeyName()
{
return 'slug';
}
}

Answer 1

When you call the method create(Article $article = null) on your controller, Laravel uses Model Binding to resolve your model and the model binding uses the method you have added to your model
public function getRouteKeyName()
{
return 'slug'; // by default it will be $primaryKey which is 'id'
}
In short, Laravel will try to use slug to find your model while your giving him articleId
So to fix it you have few options
Using the slug in the URL (the one I would recommend)
// blade.php
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Using the primary articleId in the URL
// blade.php
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// Article.php.php
public function getRouteKeyName()
{
return 'articleId';
}
Using a query
// blade.php
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//Controller.php
public function create($article = null)
{
$article = Article::where('YOUR_FIELD', $article)->firstOrFail();
return view('admin.article.create', compact('article'));
}

Answer 2

you have code
return view('admin.article.create', compact('$article'));
but need
return view('admin.article.create', compact('article'));

Answer 3

I can see you have mentioned $article in side compact.
Can you please check once, I think the create method should look like this:
public function create(Article $article = null)
{
return view('admin.article.create', compact('article'));
}