属性 [name] 在使用 maatwebsite/excel 的集合实例上不存在：~2.1.0

Question

我正在尝试将 Excel 文件导入 Laravel 5.5 并将数据插入数据库。按照本教程。 https://laratutorials.wordpress.com/2017/10/03/how-to-import-excel-file-in-laravel-5-and-insert-the-data-in-the-database-laravel-tutorials/comment-page-1/#comment-262

我已经能够获取并验证所选文件。但是出现此错误：此集合实例上不存在属性 [name]。

  public function import(Request $request){
    //validate the xls file
    $this->validate($request, array(
        'file'      => 'required'
    ));

    if($request->hasFile('file')){
        $extension = File::extension($request->file->getClientOriginalName());
        if ($extension == "xlsx" || $extension == "xls" || $extension == "csv") {

            $path = $request->file->getRealPath();
            $data = Excel::load($path, function($reader) {
            })->get();
            if(!empty($data) && $data->count()){

                foreach ($data as $key => $value) {
                    $insert[] = [
                    'name' => $value->name,
                    'email' => $value->email,
                    'phone' => $value->phone,
                    ];
                }

                if(!empty($insert)){

                    $insertData = DB::table('students')->insert($insert);
                    if ($insertData) {
                        Session::flash('success', 'Your Data has successfully imported');
                    }else {                        
                        Session::flash('error', 'Error inserting the data..');
                        return back();
                    }
                }
            }

            return back();

        }else {
            Session::flash('error', 'File is a '.$extension.' file.!! Please upload a valid xls/csv file..!!');
            return back();
        }
    }
}

dd($data) 输出这个

      SheetCollection {#609 ▼
  #title: ""
  #items: array:3 [▼
    0 => RowCollection {#412 ▼
      #heading: array:3 [▼
        0 => "name"
        1 => "email"
        2 => "phone"
      ]
      #title: "Sheet1"
      #items: array:3 [▼
        0 => CellCollection {#575 ▼
          #title: null
          #items: array:3 [▼
            "name" => "emma"
            "email" => "emma@yahoo.com"
            "phone" => 89889898.0
          ]
        }
        1 => CellCollection {#621 ▼
          #title: null
          #items: array:3 [▼
            "name" => "Godstime John"
            "email" => "jgodstime10@yahoo.com"
            "phone" => 909989898.0
          ]
        }
        2 => CellCollection {#414 ▼
          #title: null
          #items: array:3 [▼
            "name" => "John Emma"
            "email" => "jgh@email.com"
            "phone" => 9090898.0
          ]
        }
      ]
    }
    1 => RowCollection {#571 ▼
      #heading: array:1 [▼
        0 => ""
      ]
      #title: "Sheet2"
      #items: []
    }
    2 => RowCollection {#572 ▼
      #heading: array:1 [▼
        0 => ""
      ]
      #title: "Sheet3"
      #items: []
    }
  ]
}

我希望能够将我的 excel 文件（姓名、电子邮件、phone）中的行上传到我的数据库中具有字段（id、姓名）的学生 table , 电子邮件, phone). 我按照上面的所有步骤 link。但我仍然收到上述错误消息。

Answer 1

foreach ($data[0] as $key => $value) {
  // dd($value->name);

 $insert[] = [
 'name' => $value->name,
 'email' => $value->email,
 'phone' => $value->phone,
 ];
}

Answer 2

这是带有解释的解决方案。

这是您当前的地图方法代码。

public function map($user): array
{
    return [
        $user->id,
        $user->email
    ];
}

但是我更新了用户的table数据。我已经像这样在构造函数中从控制器传递了用户数据。然后在 map 方法下的 foreach 循环中，我会将数据存储在数组中，然后 return 数组。 我希望，这解释了解决方案。 这是我的代码。

<?php

namespace App\Exports;

use App\Models\User;
use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\FromQuery;
use Maatwebsite\Excel\Concerns\WithMapping;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\ShouldAutoSize;
use Maatwebsite\Excel\Concerns\WithHeadingRow;

class UsersExport implements FromCollection, ShouldAutoSize, WithMapping
{
    use Exportable;
    protected $users;

    public function __construct(array $users)
    {
        $this->users = $users;
    }

    public function collection()
    {
        return collect($this->users);
    }

    public function map($user): array
    {
        foreach ($this->users[0] as $key => $value) {
           $user[] = [
           'id' => $value->id,
           'email' => $value->email
           ];
          }
        return $user;  
    }
}

控制器代码

if($request->export_users == 'true'){
    $usersExport = User::get();
    $export = new UsersExport([
        $usersExport
    ]);
    return Excel::download($export, 'users.xlsx');
}

注意：记得在controller中导入依赖

属性 [name] 在使用 maatwebsite/excel 的集合实例上不存在：~2.1.0

Property [name] does not exist on this collection instance using maatwebsite/excel:~2.1.0

laravel

laravel-5.5