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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                我們已經說明了 CRUD 中的 CR 兩種操作。下面進入 U 部分,更新文章。 首先,要在 ArticlesController 中更改 edit 動作: ~~~ public function edit($id) { $article = Article::find($id); return View::make('articles.edit', compact('article')); } ~~~ 視圖中要添加一個類似新建文章的表單。新建 app/views/articles/edit.blade.php 文件,寫入下面的代碼: ~~~ <h1>Editing Article</h1> @if ($errors->any()) <div id="error_explanation"> <h2>{{ count($errors->all()) }} prohibited this article from being saved:</h2> <ul> @foreach ($errors->all() as $message) <li>{{ $message }}</li> @endforeach </ul> </div> @endif {{ Form::open(array('route' => array('articles.update', $article->id), 'method' => 'put')) }} <p> {{ Form::text('title', $article->title) }} </p> <p> {{ Form::text('text', $article->text) }} </p> <p> {{ Form::submit('submit') }} </p> {{ Form::close() }} {{ link_to_route('articles.index', 'Back') }} ~~~ 這里的表單指向 update 動作 method: put ( patch ) 選項告訴 Laravel,提交這個表單時使用 PUT 方法發送請求。根據 REST 架構,更新資源時要使用 HTTP PUT 方法。 然后,要在 app/controllers/ArticlesController.php 中更新 update 動作: ~~~ public function update($id) { $rules = array('title' => 'required|min:5'); $validator = Validator::make(Input::all(), $rules); if ($validator->fails()) { return Redirect::route('articles.edit') ->withErrors($validator) ->withInput(); } $article = Article::find($id); $article->title = Input::get('title'); $article->text = Input::get('text'); $article->save(); return Redirect::route('articles.show', array($article->id)); } ~~~ 最后,我們想在文章列表頁面,在每篇文章后面都加上一個鏈接,指向 edit 動作。打開 app/views/articles/index.blade.php 文件,在“Show”鏈接后面添加“Edit”鏈接: ~~~ <table> <tr> <th>Title</th> <th>Text</th> <th colspan="2"></th> </tr> @foreach ($articles as $article) <tr> <td>{{ $article->title }}</td> <td>{{ $article->text }}</td> <td>{{ link_to_route('articles.show', 'Show', $article->id) }}</td> <td>{{ link_to_route('articles.edit', 'Edit', $article->id) }}</td> </tr> @endforeach </table> ~~~ 我們還要在 app/views/articles/show.blade.php 模板的底部加上“Edit”鏈接: ~~~ {{ link_to_route('articles.index', 'Back') }} | {{ link_to_route('articles.edit', 'Edit', $article->id) }} ~~~
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