创建具有相同类别的新数据时如何按类别计算数据

Posted 2023-03-14

【中文标题】创建具有相同类别的新数据时如何按类别计算数据

【英文标题】：how to calculate data by category when creating new data with the same category

【发布时间】：2019-03-24 04:13:27

【问题描述】：

型号

public static function findOrCreate($plan_id, $data)

    $fromDate = Carbon::now()->subDay()->startOfWeek();
    $nowDate = Carbon::now()->today();

    $spent_time = static::where('plan_id', $plan_id)->first();

    if (is_null($spent_time)) 
        return static::create($data);
    else
        $new_spent_time = SpentTime::find($plan_id);
        $task_category = $new_spent_time->task_category;

        $new_spent_time->task_category = (['task_category' => $task_category, 
                                        'daily_spent_time' => $new_spent_time->daily_spent_time,
                                        'daily_percentage' => $new_spent_time->daily_percentage,
                                        'spent_time' => $new_spent_time->spent_time,
                                        'percentage' => $new_spent_time->percentage, $new_spent_time->task_category]);

        $new_spent_time->spent_time = $new_spent_time::where('task_category',$task_category)
                                    ->sum('daily_spent_time', $new_spent_time->daily_spent_time , $fromDate);
        $new_spent_time['spent_time'] = (int)$new_spent_time->spent_time + $spent_time->daily_spent_time;

        $new_spent_time->percentage = $new_spent_time::where('task_category',$task_category)
                                    ->sum('daily_percentage', $new_spent_time->daily_percentage, $fromDate);
        $new_spent_time['percentage'] = (int)$new_spent_time->percentage  + $spent_time->daily_percentage;

        return $spent_time->update($data);
    

控制器

public function store(Request $request)
      
    $spent_time = SpentTime::findOrCreate($request->get('plan_id'), [
        'plan_id' => $request->get ('plan_id'),
        'daily_spent_time' => $request->get ('daily_spent_time'),
        'daily_percentage' => $request->get ('daily_percentage'),
        'reason' => $request->get ('reason'),
    ]);

    return redirect()->route('real.index', compact( 'spent_time'));

查看

有问题，保存创建新数据时出现错误“尝试获取非对象的属性”

但是有一个数据在创建新数据的时候可以保存，但是还不能计算数据，而其他类不能这样，反而报错

应该从这个问题中纠正什么？

【问题讨论】：

$new_spent_time 根本没有被保存。您还在创建更新properties 和数组keys。选择一个。

那么应该改进什么？对不起，我还在学习，所以还是不明白你的意思。

结构有点难以理解，我看了看，但对你在哪里使用where() 子句感到困惑。您可以在一条记录上运行where()。

那么要改变什么？

您能否用您的模型和模型关系更新您的问题，以便我了解要实现的目标。

【参考方案1】：

更新答案

型号

public static function findOrCreate($plan_id, $data)

    $spent_time = static::where('plan_id', $plan_id)->first();
    $task_category = $spent_time->task_category;

    if (is_null($spent_time)) 
        return static::create($data);
    else

        $spent_time['spent_time'] = $spent_time->spent_time + $spent_time->daily_spent_time;

        $spent_time['percentage'] = $spent_time->percentage  + $spent_time->daily_percentage;
        return $spent_time->update($data);
    

控制器

public function index()

    $spent_times = SpentTime::orderBy('task_category')->where('created_at', '>=', Carbon::today()->toDateString())->paginate(10);
    $user_stories = Plan::pluck('user_story', 'id');
    $real = new SpentTime;

    return view('reals.index', compact('spent_times', 'user_stories', 'real'));


public function store(Request $request)
    
    $spent_time = SpentTime::findOrCreate($request->get('plan_id'), [
        'plan_id' => $request->get ('plan_id'),
        'daily_spent_time' => $request->get ('daily_spent_time'),
        'daily_percentage' => $request->get ('daily_percentage'),
        'reason' => $request->get ('reason'),
    ]);
    return redirect()->route('real.index', compact( 'spent_time'));

【参考方案2】：

数据在那里，当 dd($spent_time);

dd($spent_time);

【参考方案3】：

在您的SpentTime 模型中，您可以创建accessors，这些函数可用于在此处查询所有相关记录的总和：

public function getDailySpentTimeAttribute()

    return self::where('task_category_id', $this->task_category_id)
        ->get()
        ->sum('daily_spent_time');


public function getDailyPercentageAttribute()

    return self::where('task_category_id', $this->task_category_id)
        ->get()
        ->sum('daily_percentage');

在这里，我们为基于相关task_category的所有记录创建两个accessors，一个用于获取每日花费时间，另一个用于获取每日百分比。

可以使用以下方式调用：

$dailySpentTime = SpentTime::find($id)->dailySpentTime;

// or within your blade template

 $spentTime->dailySpentTime 

更新

在您的控制器中，由于您不再需要在保存时运行任何计算，您可以执行以下操作：

public function store(Request $request)
      
    $spent_time = SpentTime::findOrCreate($request->get('plan_id'), [
        'task_category' => $request->get('task_category'),
        'reason'        => $request->get('reason'),
    ]);

    return redirect()->route('real.index', compact('spent_time'));

确保删除当前覆盖 laravel 版本的自定义 findOrCreate() 方法。

希望这会有所帮助。

【讨论】：

对控制器有额外的调用吗？

在store() 控制器方法中只需要正常保存。 dailySpentTime 可以在任何 SpentTime 记录上调用。

已更新。如果您理解，请告诉我。

错误Call to a member function getDailySpentTimeAttribute() on boolean

你能dd() $spent_time 看看回显的内容吗？

【参考方案4】：

更新模型

public static function findOrCreate($plan_id, $data)

    $fromDate = Carbon::now()->subDay()->startOfWeek();
    $nowDate = Carbon::now()->today();

    $spent_time = static::where('plan_id', $plan_id)->first();

    if (is_null($spent_time)) 
        return static::create($data);
    else

        $new_spent_time = SpentTime::first();
        $task_category = $new_spent_time->task_category;

        $new_spent_time->task_category = (['task_category' => $task_category, 
                                        'daily_spent_time' => $new_spent_time->daily_spent_time,
                                        'daily_percentage' => $new_spent_time->daily_percentage,
                                        'spent_time' => $new_spent_time->spent_time,
                                        'percentage' => $new_spent_time->percentage, $new_spent_time->task_category]);

        $new_spent_time->spent_time = $new_spent_time::where('task_category',$task_category)
                                    ->sum('daily_spent_time', $new_spent_time->daily_spent_time , $fromDate);
        $new_spent_time['spent_time'] = (int)$new_spent_time->spent_time + $spent_time->daily_spent_time;

        $new_spent_time->percentage = $new_spent_time::where('task_category',$task_category)
                                    ->sum('daily_percentage', $new_spent_time->daily_percentage, $fromDate);
        $new_spent_time['percentage'] = (int)$new_spent_time->percentage  + $spent_time->daily_percentage;

        return $spent_time->update($data);