Laravel Route 模型绑定（slug）仅适用于 show 方法？
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Laravel Route model binding (slug) only works for show method?
提问by PeraMika
I have Articlemodel and articlestable in the database. Each article can be shown using Laravel's standard URI structure: www.example.com/articles/5(where 5is the article id). Each article has a slugfield (slugcolumn in the articles table), so with Route Model BindingI use sluginstead of id:
我在数据库中有文章模型和文章表。每篇文章都可以使用 Laravel 的标准 URI 结构显示：（文章www.example.com/articles/5在哪里）。每篇文章都有一个slug字段（文章表中的slug列），因此我使用路由模型绑定而不是：5idslugid
RouteServiceProvider.php:
RouteServiceProvider.php:
public function boot(Router $router)
{
parent::boot($router);
\Route::bind('articles', function($slug) {
return \App\Article::where('slug', $slug)->firstOrFail();
});
}
In routes.php I have:
在routes.php我有：
Route::resource('articles', 'ArticleController');
and now articles can be accessed with URLs like: www.example.com/some_slug.
现在可以使用 URL 访问文章，例如：www.example.com/some_slug。
But now, when I want to edit some article, I get the following error:
但是现在，当我想编辑某篇文章时，出现以下错误：
No query results for model [App\Article].
没有模型 [App\Article] 的查询结果。
For example, when I try to open the following: www.example.com/some_slug/edit- I get that error.
例如，当我尝试打开以下内容时：www.example.com/some_slug/edit- 我收到该错误。
So, method ArticleController@show(Article $article) works fine, but ArticleController@edit(Article $article) doesn't work.
因此，方法 ArticleController@show(Article $article) 工作正常，但 ArticleController@edit(Article $article) 不起作用。
Here is my route list:
这是我的路线清单：
and here are showand edit methods from ArticleController:
这里是来自 ArticleController 的显示和编辑方法：
public function show(Article $article) // THIS WORKS FINE
{
$tags = $article->tags()->get();
return view('articles.show', compact('article', 'tags'));
}
public function edit(Article $article) // DOESN'T WORK -> When I open article/slug/edit I get error: No query results for model [App\Article].
{
$tags = Tag::lists('name', 'id');
$categories = Category::orderBy('lft', 'asc')->get()->lists('padded_name', 'id');
return view('articles.edit', compact('article', 'tags', 'categories'));
}
回答by MarketHubb
回答by swadhwa
If anyone wants to do route model binding with both idand slug, explicitly binding like this works:
如果有人想同时使用idand进行路由模型绑定slug，那么显式绑定是这样工作的：
Route::bind('product', function($value) {
return \App\Product::where('id', $value)->orWhere('slug', $value)->first();
});
回答by Javier Gonzalez
I have another approach for you without touching RouteServiceProvider.php. I hope it helps.
You need use App\Article;and use App\Tag;in your ArticleController.
ArticleController
我有另一种方法，无需触及 RouteServiceProvider.php。我希望它有帮助。
您需要使用 App\Article; 并使用 App\Tag; 在您的文章控制器中。
文章控制器
public function show($slug)
{
$article = Article::where('slug', $slug)->first();
$tags = Tag::lists('name', 'id');
return view('articles.edit', compact('article', 'tags'));
}
public function edit($slug)
{
$article = Article::where('slug', $slug)->first();
$tags = Tag::lists('name', 'id');
return view('articles.edit', compact('article', 'tags'));
}
