在laravel中插入多个数据到数据库

Question

嗨，我是拉威尔的新手，我在将数据插入数据库和抛出错误时遇到了麻烦

msgstr"Countable（）：参数必须是实现可数的数组或对象"

我想在数据库中添加所有注册员工的出勤信息

控制器

    public function Attendence() 
    {
        $data=employee_data::all();
        return view('attendence',compact('data'));
    }   

    public function mark_attendence(Request $request)
    {
        $request->validate([
        'date'  =>  'required',
        'is_present'  =>  'required'

        ]);


        $data=$request->all();
        $last_id=employee_data::create($data)->id;
        if (count($request->is_present) >0 )
         {
            # code...
            foreach ($return->is_present as $item => $v)
            {
                $data2=array(
                    'is_present' =>$request->is_present[$item],
                    'date'=> $request->date[$item],
                    'user_id'=>$last_id
                );

            }
        //$data2->save();

    //$employee->save();
    //$employee->employee_data()->create([]);



        return redirect('/index')->with('succ','Attendence Added Successfully');
    }

叶片输出：

模型类员工出席扩展模型{//

protected $fillable  = array('is_present' ,'date', 'user_id' );
//protected $fillable=[];
public $timemstamps= false ;

public function employee_data(){
        //return $this->hasOne(employee_data::class,'App/employee_data');
    return $this->hasOne('App\employee_data');

}

}

模型2

命名空间App；

使用Illumb\Database\Elount\Model；

类employee_data扩展模型{//protected$fillabel=['first_name'，'last_name'，'contact_no'，'date_joining'，'post']；

protected $fillable  = array('first_name', 'last_name', 'contact_no' ,'date_joining','post' );
//protected $fillable=[];
public $timemstamps= false ;

public function employee_attendence()
{
        //return $this->hasOne( employee_attendence::class, 'App/employee_attendence');
        return $this->belongsTo('App\employee_attendence');
}

}

Answer 1

在你的“添加出勤”方法中，试试这个对我有用的方法

for($i = 0; $i < sizeof($request->is_present); $i++)
    {
        $emp = new employee_attendence();

        if($request->is_present[$i] == "Present")
            $emp->is_present = "Present";
        if($request->is_present[$i] == "Absent")
            $emp->is_present = "Absent";

            $emp->date = $request->date; 
            $emp->user_id = $request->user_id[$i];
            $emp->save();
    }

Answer 2

据我所知。您可能有is\u present将是视图中的数组格式，如name=“is\u present[]”。如果这是您的情况，那么下面的代码可以正常工作。如果不是，则如果输入不是对象或数组，则不能使用count（）

public function mark_attendence(Request $request)
{
    for($i = 0; $i < sizeof($request->is_present); $i++)
    {
        $emp = new employee_attendence();

        if($request->is_present[$i] == "Present")
        $emp->is_present = "Present";
        if($request->is_present[$i] == "Absent")
        $emp->is_present = "Absent";

        $emp->date = now();
        $emp->user_id = $request->user_id[$i];
        $emp->save();
    }
    return redirect('/index')->with('succ','Attendence Added Successfully');
}