Question

如何从嵌套资源触发index方法？例如，我有路线：

Route::resource('diagrams.steps', 'DiagramStepsController');

我允许/diagrams/1/steps/3等触发show($diagramId, $stepID)的网址。我想获得属于ID为1的图表的所有步骤：/diagrams/1/steps。

我如何实现这一目标？

Answer 1

您发布的路线定义：

Route::resource('diagrams.steps', 'DiagramStepsController');

应生成以下路线：

+--------+-------------------------------------------------+------------------------+--------------------------------+----------------+---------------+
| Domain | URI                                             | Name                   | Action                         | Before Filters | After Filters |
+--------+-------------------------------------------------+------------------------+--------------------------------+----------------+---------------+
|        | GET|HEAD diagrams/{diagrams}/steps              | diagrams.steps.index   | DiagramStepsController@index   |                |               |
|        | GET|HEAD diagrams/{diagrams}/steps/create       | diagrams.steps.create  | DiagramStepsController@create  |                |               |
|        | POST diagrams/{diagrams}/steps                  | diagrams.steps.store   | DiagramStepsController@store   |                |               |
|        | GET|HEAD diagrams/{diagrams}/steps/{steps}      | diagrams.steps.show    | DiagramStepsController@show    |                |               |
|        | GET|HEAD diagrams/{diagrams}/steps/{steps}/edit | diagrams.steps.edit    | DiagramStepsController@edit    |                |               |
|        | PUT diagrams/{diagrams}/steps/{steps}           | diagrams.steps.update  | DiagramStepsController@update  |                |               |
|        | PATCH diagrams/{diagrams}/steps/{steps}         |                        | DiagramStepsController@update  |                |               |
|        | DELETE diagrams/{diagrams}/steps/{steps}        | diagrams.steps.destroy | DiagramStepsController@destroy |                |               |
+--------+-------------------------------------------------+------------------------+--------------------------------+----------------+---------------+

请注意，第一条路线是diagrams/{diagrams}/steps，它会调用控制器的index方法，这就是您所要求的。

Answer 2

Route::resource('diagrams.steps', 'DiagramStepsController');

给我GET | HEAD图表/ {图表} /步骤路线。它使用参数匹配图id {{}}调用索引方法。因此，为了获得属于导航图的所有步骤，我必须按如下方式编写方法：

public function index($id) 
{
    $steps = Step::where('diagram_id', '=', $id)->get();

    return Response::json(
            array(
                'error' => false,
                'steps' => $steps
            ), 
            200
    );
}

嵌套资源路由

2 个答案: