1.routes：

Route::get('/', 'HomeController@welcome');

Route::auth();

Route::get('/home', 'HomeController@index');

Route::resource('projects', 'ProjectsController');

Route::get('tasks/charts', ['as' => 'tasks.charts', 'uses' => 'TasksController@charts']);
Route::resource('tasks', 'TasksController');

Route::post('tasks/{tasks}/steps/complete', 'StepsController@completeAll');
Route::delete('tasks/{tasks}/steps/clear', 'StepsController@claerCompeted');
Route::resource('tasks.steps', 'StepsController');

Route::post('tasks/{id}/check', ['as' => 'tasks.check', 'uses' => 'TasksController@check']);

2.Controller：

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;
use App\Task;
use App\Step;
class StepsController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index($id)
    {
        $steps = Task::findOrFail($id)->steps;
        return $steps;
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store($taskID, Request $request)
    {
        Task::findOrFail($taskID)->steps()->create([
            'name' => $request->name,
            'completed' => 0
            ]);
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $taskID, $id)
    {
        $step = Step::findOrFail($id);
        $step->completed = $request->opposite ? 1 : 0;
        $step->save();
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($taskID, $id)
    {
        Step::findOrFail($id)->delete();
    }

    public function completeAll($taskID)
    {
        Task::findOrFail($taskID)->steps()->update([
            'completed' => 1
            ]);
    }

    public function claerCompeted($taskID)
    {
        Step::where('task_id', $taskID)->where('completed',1)->delete();
    }
}

3.Exception：

    [2017-03-29 14:51:32] local.ERROR: ReflectionException: Method App\Http\Controllers\StepsController::claerCompeted() does not exist in /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Route.php:280
    Stack trace:
/home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Route.php(280): ReflectionMethod->__construct('App\\Http\\Contro...', 'claerCompeted')

   

/home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(857): IlluminateRoutingRoute->signatureParameters('Illuminate\Data...')

#2 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(842): Illuminate\Routing\Router->substituteImplicitBindings(Object(Illuminate\Routing\Route))
#3 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(825): Illuminate\Routing\Router->substituteBindings(Object(Illuminate\Routing\Route))
#4 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(691): Illuminate\Routing\Router->findRoute(Object(Illuminate\Http\Request))
#5 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Router.php(675): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request))
#6 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(246): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request))
#7 [internal function]: Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request))
#8 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(52): call_user_func(Object(Closure), Object(Illuminate\Http\Request))
#9 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(44): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#10 [internal function]: Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode->handle(Object(Illuminate\Http\Request), Object(Closure))
#11 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(136): call_user_func_array(Array, Array)
#12 [internal function]: Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#13 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(32): call_user_func(Object(Closure), Object(Illuminate\Http\Request))
#14 [internal function]: Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#15 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(102): call_user_func(Object(Closure), Object(Illuminate\Http\Request))
#16 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(132): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#17 /home/vagrant/Code/TaskManager/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(99): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#18 /home/vagrant/Code/TaskManager/public/index.php(53): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#19 {main}

正在学习laravel中，新手一枚，希望各大神帮帮忙解决一下吧，十分感谢!!!上面代码的缩进问题，望谅解。