N'B*_*yev 8 php laravel laravel-7
我有一个这样的嵌套资源路由定义:
Route::resource('posts.comments', 'CommentController');
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这会产生以下路线:
+--------+-----------+--------------------------------------+------------------------+------------------------------------------------+------------+
| Domain | Method | URI | Name | Action | Middleware |
+--------+-----------+--------------------------------------+------------------------+------------------------------------------------+------------+
| | GET|HEAD | posts/{post}/comments | posts.comments.index | App\Http\Controllers\CommentController@index | web |
| | POST | posts/{post}/comments | posts.comments.store | App\Http\Controllers\CommentController@store | web |
| | GET|HEAD | posts/{post}/comments/create | posts.comments.create | App\Http\Controllers\CommentController@create | web |
| | GET|HEAD | posts/{post}/comments/{comment} | posts.comments.show | App\Http\Controllers\CommentController@show | web |
| | PUT|PATCH | posts/{post}/comments/{comment} | posts.comments.update | App\Http\Controllers\CommentController@update | web |
| | DELETE | posts/{post}/comments/{comment} | posts.comments.destroy | App\Http\Controllers\CommentController@destroy | web |
| | GET|HEAD | posts/{post}/comments/{comment}/edit | posts.comments.edit | App\Http\Controllers\CommentController@edit | web |
+--------+-----------+--------------------------------------+------------------------+------------------------------------------------+------------+
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Post 模型:
public function comments()
{
return $this->hasMany(Comment::class);
}
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Comment 模型:
public function post()
{
return $this->belongsTo(Post::class);
}
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posts 桌子:
+----+--------+-----------------------------+---------------------+---------------------+
| id | title | body | created_at | updated_at |
+----+--------+-----------------------------+---------------------+---------------------+
| 1 | Post 1 | This is the body of Post 1. | 2020-07-29 11:20:53 | 2020-07-29 11:20:53 |
| 2 | Post 2 | This is the body of Post 2. | 2020-07-29 11:21:13 | 2020-07-29 11:21:13 |
+----+--------+-----------------------------+---------------------+---------------------+
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comments 桌子:
+----+---------+-----------------------------+---------------------+---------------------+
| id | post_id | body | created_at | updated_at |
+----+---------+-----------------------------+---------------------+---------------------+
| 1 | 1 | The comment for the Post 1. | 2020-07-29 11:22:27 | 2020-07-29 11:22:27 |
| 2 | 2 | The comment for the Post 2. | 2020-07-29 11:22:32 | 2020-07-29 11:22:32 |
+----+---------+-----------------------------+---------------------+---------------------+
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在文档中:
当使用自定义键控隐式绑定作为嵌套路由参数时,Laravel 将自动将查询范围限定为通过其父级检索嵌套模型,使用约定来猜测父级上的关系名称。
所以,{comment}应该是 的孩子{post}。但是,当我打/posts/1/comments/2,它将检索注释与一个ID为2属于后与一个ID为2。预期的结果是NotFoundHttpException。
当我像这样单独定义路由时,它工作正常:
Route::get('/posts/{post}/comments/{comment:id}', 'CommentController@show');
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为什么会这样?
还尝试自定义Post和Comment模型中的默认键名:
public function getRouteKeyName()
{
return 'id';
}
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但没有运气。
任何帮助,将不胜感激。
Illuminate\Routing\PendingResourceRegistration.php从源代码阅读类后进行了一些挖掘并得出了结论。我必须使用自定义键控隐式绑定才能使其按预期工作。
Route::resource()方法采用(可选)第三个参数,它是一个关联数组。因此,我需要parameters使用此参数通过键覆盖路由参数名称。
Route::resource('posts.comments', 'CommentController', [
'parameters' => ['comments' => 'comment:id'],
]);
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或者
Route::resource('posts.comments', 'CommentController')->parameters([
'comments' => 'comment:id',
]);
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无论哪种方式都有效。
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