试图在Laravel中发布对象数组。 ErrorException：从文件中的空值创建默认对象

Question

我正在尝试发送带有以下数据集的POST请求：

[
    {
    "Course_Code":"CIS341",
    "Start_Date":"2020-08-22",
    "End_Date":"2020-12-02",
    "CRN":345627,
    "CWID":"C38475920",
    "Date_Registered":"2020-04-02"
    },
    {
    "Course_Code":"CIS341",
    "Start_Date":"2020-08-22",
    "End_Date":"2020-12-02",
    "CRN":456392,
    "CWID":"C38475920",
    "Date_Registered":"2020-04-02"
    },
    {
    "Course_Code":"CIS341",
    "Start_Date":"2020-08-22",
    "End_Date":"2020-12-02",
    "CRN":562940,
    "CWID":"C38475920",
    "Date_Registered":"2020-04-02"
    }
]

但是我只想将每个对象的CRN，CWID和Date_Registered插入我的final_schedule表中：

protected $table ="final_schedule";
  public $timestamps = false;
  protected $fillable = [
    'CWID',
    'CRN',
    'Date_Registered'
  ];

这里是我正在使用的插入函数：

public function insert(Request $request){
      $CWID->CWID = $request->input('CWID');
      $CRN->CRN = $request->input('CRN');
      $Date_Registered->Date_Registered = $request->input('Date_Registered');

      $items = array('CWID'=>$CWID, 'CRN'=>$CRN, 'Date_Registered'=>$Date_Registered);
      finalScheduleModel::insert($items);
    }

当我在邮递员中测试此插入函数时，会出现错误：ErrorException: Creating default object from empty value in file错误指向的行是函数的第一行$CWID->CWID = $request->input('CWID');我尝试以多种不同的方式编写此函数，但是我一直都在出错。它从不读取正在发送的任何数据。可能会说类似尝试将值CWID，CRN，Date_Registered（？，？，？）插入final_schedule。

Answer 1

尝试一下，看看是否适合您。

public function insert(Request $request){
          $array = [];
    foreach (request()->all() as $value) {
        array_push($array, ['CWID' => $value['CWID'], 'CRN' => $value['CRN'], 'Date_Registered' => $value['Date_Registered']]);
    }

    DB::table('final_schedule')->insert($array);
    }