Laravel将一个变量成功消息从存储库传回控制器 - Laravel pass a variable success message back to controller from repoistory

Laravel pass a variable success message back to controller from repoistory

嗨，我在laravel中使用一个存储库模式来创建任务，它们都有一个估计的时间，项目有几个小时的容量。因此，我需要在创建任务时将其传递回去，以便他们可以看到还剩下多少小时。

我到目前为止有这个:

TaskRepository.php

public function createTask(array $attributes)
    {
        if ($this->validator->createATask($attributes)) {
            $newAttributes = [
                'project_id' => $attributes['project_id'],
                'estimated_time' => $attributes['estimated_time'],
                'task_name' => $attributes['task_name']
            ];
            $task = Task::updateOrCreate([
                'task_name' => $attributes['task_name']
            ],
                $newAttributes);
            $task->save();
            $project = Project::find($attributes["project_id"])->pluck('capacity_hours');
            $tasks = Task::find($attributes["project_id"])->lists('estimated_time');
            $tasksTotal = array_sum($tasks);
            $capcity_left = ($project - $tasksTotal);
            return $capcity_left;
        }
        throw new ValidationException('Could not create Task', $this->validator->getErrors());
    }

在我的控制器中，我有这个:

TaskController.php

public function store() {
    try {
        $this->task_repo->createTask(Input::all());
    } catch (ValidationException $e) {
        if (Request::ajax()) {
            return Response::json(['errors' => $e->getErrors()], 422);
        } else {
            return Redirect::back()->withInput()->withErrors($e->getErrors());
        }
    }
    if (Request::ajax()) {
        return Response::json(["message" => "Task added",'capcity_left'=> $capcity_left]);
    } else {
        return Redirect::back()->with('success', true)->with(['message', 'Task added', 'capcity_left'=>$capcity_left ]);
    }
}

和我有一个部分的错误:

@if(Session::get('success'))
    <div class="alert alert-success alert-dismissible" role="alert">
        <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span
                    aria-hidden="true">&times;</span></button>
        <strong>{{ Session::get('message', '') }} Capacity Left:{{ Session::get('capcity_left', '') }}</strong>
    </div>
@endif

但是我得到这个错误:

Undefined variable: capcity_left

有什么想法我可以把这个传递回控制器吗?我以为我说的是return $capcity_left;我需要在控制器中捕获这个吗?如果有，我该怎么做呢?

从控制器调用createTask方法时忘记分配它的返回值。所以你需要这样做:

public function store() {
    try {
        // assign the return value here
        $capcity_left = $this->task_repo->createTask(Input::all());
    } catch (ValidationException $e) {
    // ...
}