如何在Ajax调用成功后使用可变数据 - Laravel
我创建了一个小文件管理器来管理我的文件。一方面,JsTree显示了文件夹结构。在右侧,我希望基于点击左侧文件夹,我显示了该文件夹中包含的文件。 点击一个Ajax调用,调用selectFiles方法来遍历路由。现在在控制台中,我看到了正确的数据,但我不知道如何将它用于刀片中的foreach。如何在Ajax调用成功后使用可变数据 - Laravel
AJAX:
// chiamata Ajax per selezionare files in base all'id $('#treeview').on("select_node.jstree", function (e, data) { 
    var id = data.node.id; 
    $.ajax({ 
     type: 'POST', 
     url: 'archivio_documenti/+id+/selectFiles', 
     data: {id:id}, 
     success: function(data) { 
      console.log('Succes!',data); 
     }, 
     error : function(err) { 
      console.log('Error!', err); 
     }, 
    }); 
}); 
DocumentiController.php:
/** * Selzionare files in base all'id della cartella 
*/ 
public function selectFiles(Request $request){ 
    try{ 
     $id = $request->id; 
     $files = \App\Documento::where('cartella_id',$id)->get(); 
     return response()->json(compact('files')); 
    } 
    catch(\Exception $e){ 
     echo json_encode($e->getMessage()); 
    } 
} 
路线:
Route::post('archivio_documenti/{id}/selectFiles', '[email protected]'); 更新:
    @foreach($files as $key => $file)          <div id="myDIV" class="file-box"> 
          <div class="file"> 
           {!! Form::open(['method' => 'DELETE','route' => ['documento.destroy', $file->id]]) !!} 
           <button type="submit" class="#" style="background: none; border: none; color: red;"> 
            <i class='fa fa-trash' aria-hidden='true'></i> 
           </button> 
           {!! Form::close() !!} 
           <a href="/documento/{{ $file->id }}/edit" class="#" role="button" style="text-align: center;"><i class='fa fa-edit' aria-hidden='true'></i></a> 
           <input id="myInput_{{$key}}" type="text" value="{{'project.dev/'.$file->path.'/'.$file->file}}"> 
           <a href="#"><i class="btnFiles fa fa-files-o" aria-hidden="true" data-id="{{$key}}"></i></a> 
           <a href="{{' http://project.dev/'.$file->path.'/'.$file->file}}"> 
            <span class="corner"></span> 
            <div class="icon"> 
             <i class="img-responsive fa fa-{{$file->tipo_file}}" style="color:{{$file->color_file}}"></i> 
            </div> 
            <div class="file-name"> 
             {{$file->file}} 
             <br> 
             <small>Update: {{$file->updated_at}}</small> 
            </div> 
           </a> 
          </div> 
         </div> 
        @endforeach 
回答:
OK,你的foreach有点复杂,但这个想法本身是简单:使用Javascript重新创建刀片中的foreach循环,并将结果附加到DOM。
在你的success回调你可以例如做到这一点:
$('#treeview').on("select_node.jstree", function (e, data) {     var id = data.node.id; 
    $.ajax({ 
     type: 'POST', 
     url: 'archivio_documenti/+id+/selectFiles', 
     data: {id:id}, 
     success: function(data) { 
      // Build the HTML based on the files data 
      var html = ''; 
      $.each(data, function(i, file) { 
       html += '<div class="file" id="file_' + file.id + '">' + file.updated_at + '</div>'; 
      }); 
      // Append the built HTML to a DOM element of your choice 
      $('#myFilesContainer').empty().append(html); 
     }, 
     error : function(err) { 
      console.log('Error!', err); 
     }, 
    }); 
}); 
显然,这是简化,你需要使用你已经证明我们在上面的foreach环HTML结构,但这个想法是一样的:通过您的文件(1)环在data对象中并逐行构建HTML结构,(2)将整个HTML块放入DOM中,无论用户点击某个文件夹后需要显示哪个HTML块。
备选:
如果你想保持刀片,而不是javascipt的的foreach循环,你可以在循环移动到一个单独的刀片:
folder_contents.blade.php
@foreach($files as $key => $file)          <div id="myDIV" class="file-box"> 
          <div class="file"> 
           {!! Form::open(['method' => 'DELETE','route' => ['documento.destroy', $file->id]]) !!} 
           <button type="submit" class="#" style="background: none; border: none; color: red;"> 
            <i class='fa fa-trash' aria-hidden='true'></i> 
           </button> 
           {!! Form::close() !!} 
           <a href="/documento/{{ $file->id }}/edit" class="#" role="button" style="text-align: center;"><i class='fa fa-edit' aria-hidden='true'></i></a> 
           <input id="myInput_{{$key}}" type="text" value="{{'project.dev/'.$file->path.'/'.$file->file}}"> 
           <a href="#"><i class="btnFiles fa fa-files-o" aria-hidden="true" data-id="{{$key}}"></i></a> 
           <a href="{{' http://project.dev/'.$file->path.'/'.$file->file}}"> 
            <span class="corner"></span> 
            <div class="icon"> 
             <i class="img-responsive fa fa-{{$file->tipo_file}}" style="color:{{$file->color_file}}"></i> 
            </div> 
            <div class="file-name"> 
             {{$file->file}} 
             <br> 
             <small>Update: {{$file->updated_at}}</small> 
            </div> 
           </a> 
          </div> 
         </div> 
        @endforeach 
然后,在你的控制器:
public function selectFiles(Request $request){     try{ 
     $id = $request->id; 
     $files = \App\Documento::where('cartella_id',$id)->get(); 
     // Save the view as string 
     $view = view('folder_contents.blade.php', compact('files')))->render(); 
     // Pass the ready HTML back to Javasctipt 
     return response()->json(compact('view')); 
    } 
    catch(\Exception $e){ 
     echo json_encode($e->getMessage()); 
    } 
} 
回答:
必须设置标题为Ajax
headers: {      'X_CSRF_TOKEN':'xxxxxxxxxxxxxxxxxxxx', 
     'Content-Type':'application/json' 
    }, 
,并在控制器
public function selectFiles(Request $request){     try{ 
     $id = $request->id; 
     $files = \App\Documento::where('cartella_id',$id)->get(); 
     return response()->json($files); 
    } 
    catch(\Exception $e){ 
     echo json_encode($e->getMessage()); 
    } 
} 
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