我在用Laravel5，我想从数据库中删除一些数据
html格式

<form method="post" action="{{route('publications.destroy', $publication->id)}}">
    {{csrf_field()}}
    {{method_field('DELETE')}}
    <button type="submit" class="btn btn-danger btn-sm" dusk="btn-confirmDeletePub">Yes, Delete</button>
</form>

网站.php

Route::resource('publications','PublicationController');

publication.php（模型）

public function users()
{
    return $this->belongsToMany('App\User', 'user_publication');
}

public function topics()
{
    return $this->belongsToMany('App\Topic', 'topic_publication');
}

public function authors()
{
    return $this->belongsToMany('App\Author', 'author_publication');
}

public function details()
{
        /*
        Since we must join the publications table with one of the
        journals/conference/editorship table (based on type column' value)
        to retrieve publication'details,  we "aggregate" the 3 alternatives in this method.

        this method is useful for retrieving from db, 
        for insertions, the 3 methods above ( journal(),conference(),editorship())
        should be used
        */
        switch ($this->type) {
            case 'journal':
                return $this->hasOne('App\Journal');
                break;

            case 'conference':
                return $this->hasOne('App\Conference');
                break;

            case 'editorship':
                return $this->hasOne('App\Editorship');
                break;

        }
 }

publicationcontroller.php

public function destroy($id)
{
    $publication = Publication::find($id);
    $publication->users()->detach($publication->id);
    $publication->topics()->detach($publication->id);
    $publication->authors()->detach($publication->id);
    //dd($publication);
    $publication->details()->delete();

    //$publication->delete();

    //Redirect('/users')->with('success', 'Publication deleted correctly.');

    return redirect('/users')->with('success', 'Publication deleted correctly.');

}

当我点击 Yes, Delete 按钮，它调用 destroy 中的方法 PublicationController 删除具有特定id的发布。我尝试注解所有代码，只保留 return redirect 查看是否调用了该方法，它是否有效。之后，我删除了对 detach() 函数，但在数据库中却莫名其妙地没有产生任何结果。最后，我删除了网站上的评论 $publication->details()->delete(); 我的应用程序崩溃了。