can't save new data, and Array to string conversion?

问题

Model in laravel

"Array to string conversion (SQL: update spent_times set updated_at = 2018-10-18 06:02:29, spent_time = 12, percentage = 60.00, task_category = testing where id = 7) ◀"

public static function findOrCreate($plan_id, $data)
{
    $fromDate = Carbon::now()->subDay()->startOfWeek()->toDateString();
    $nowDate = Carbon::now()->today()->toDateString();

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

        $new_spent_time->percentage = SpentTime::where('task_category', $spent_time->task_category)->sum('daily_percentage', $new_spent_time->daily_percentage, $fromDate);
        $request['percentage'] = (int)$new_spent_time->percentage  + $spent_time->daily_percentage;
        $new_spent_time->save();
        return $spent_time->update($data);
    }
}

Controller in laravel

in function store, can't save data and can't calculation data by category when create new data, data should be calculated and entered into the table as pict.

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'));
}

回答1:

You have an error on below line

$new_spent_time->percentage = SpentTime::where('task_category', $spent_time->task_category)->sum('daily_percentage', $new_spent_time->daily_percentage, $fromDate);

Here you assigning $spent_time->task_category (an array) to 'task_category' (a string field).

Change value of above variable it will fix your issue.

回答2:

Model

public static function findOrCreate($plan_id, $data)
{
    $fromDate = Carbon::now()->subDay()->startOfWeek()->toDateString();
    $nowDate = Carbon::now()->today()->toDateString();

    $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);
        $request['spent_time'] = (int)$new_spent_time->spent_time + $spent_time->daily_spent_time;

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

        return $spent_time->update($data);
    }
}

Controller

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'));
}

来源：https://stackoverflow.com/questions/52868027/cant-save-new-data-and-array-to-string-conversion