[英]Laravel Error: missing required parameter
當我想編輯帖子時,出現缺少必需參數錯誤,我該如何解決?
[Route: cms.edit] [URI: cms/{cm}/edit] [缺少參數: cm] 缺少必需參數。 (查看:C:\xampp\htdocs\mycmsL\resources\views\cms\edit.blade.php)
這是文章控制器:
public function edit(Article $article)
{
return view('cms.edit')
->with('article',$article)
->with('categories',Category::all())
->with('tags',Tag::all());
}
並編輯.blade.php :
<form method="POST" action="{{ route('cms.edit',['id'=> $article->id]) }}" enctype="multipart/form-data">
@csrf
@method('put')
<div class="mb-3">
<input type="text" name="title" class="form-control" id="title" value="$article->title">
</div>
<div class="mb-3">
<textarea type="text" class="form-control" id="description" name="description" rows="5" value="$article->description"></textarea>
</div>
<div class="mb-3">
<input type="file" class="form-control" name="image" id="image" value="$article->image">
</div>
<div class="mb-3">
<textarea type="text" name="content" class="form-control" id="content" rows="15" value="$article->content"></textarea>
</div>
<div class="mb-3">
<select class="form-select" name="tag" aria-label="Default select example">
@foreach ($tags as $tag) ?>
<option value="{{$tag->id}}"> {{$tag->name}} </option>
@endforeach
</select>
</div>
<div class="mb-3">
<select class="form-select" name="category" aria-label="Default select example">
@foreach ($categories as $category) ?>
<option value="{{$category->id}}"> {{$category->name}} </option>
@endforeach
</select>
</div>
<button class="btn btn-primary">Submit</button>
</form>
這是我的路線:
Route::resource('cms',articlesController::class);
當我想查看數據時, {{dd($article->id)}}
返回給我null
。
我更改了這部分route('cms.edit',['cms'=> $article->id])
但錯誤沒有修復
這是路線列表:在此處輸入圖像描述
您也應該在 function 中使用相同的參數 url 名稱
//Change this from
{{ route('cms.edit',['id'=> $article->id]) }}
//TO
{{ route('cms.edit',['cm'=> $article->id]) }}
public function edit(Article $cm) // old param name '$article'
{
return view('cms.edit')
->with('article',$cm)
->with('categories',Category::all())
->with('tags',Tag::all());
}
創建項目比以往任何時候都更容易小型甚至大型項目,您現在可以輕松創建它們。
https://github.com/sameralsayed/WOWLARA-Start-building-projects
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