不能在 Laravel/Excel 中导入少于 5 行答案

【问题标题】：Can't import less than 5 rows in Laravel/Excel不能在 Laravel/Excel 中导入少于 5 行
【发布时间】：2020-10-26 07:38:26
【问题描述】：

我正在尝试将多行从 Excel 文件导入数据库。如果行数等于或大于 5，则记录成功添加到数据库中，但如果我尝试少于 5 条记录，则会出现 SQL 错误。

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'customer_name' cannot be null (SQL: insert into `shipments` (`user_id`, `customer_name`, `customer_address`, `customer_email`, `customer_phone`, `destination_country`, `destination_city`, `service_type`, `tb_date`, `tb_time`, `pickup_location`, `product_name`, `quantity`, `consignment_no`, `weights_id`, `product_value`, `product_reference`, `remarks`, `status`, `updated_at`, `created_at`) values (2, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1220125, 1, ?, ?, ?, Booked, 2020-10-26 12:26:29, 2020-10-26 12:26:29))

这是我的导入类

<?php

namespace App\Imports;

use App\Shipment;
use Illuminate\Support\Collection;
use Maatwebsite\Excel\Concerns\ToCollection;
use Maatwebsite\Excel\Concerns\WithHeadingRow;
Use Auth;
use App\Settings;
use App\ShipmentTracking;
use App\Alert;

class ShipmentImport implements ToCollection, WithHeadingRow
{
    public function  __construct($weight_id)
    {
        $this->weight_id= $weight_id;
    }

public function collection(Collection $rows)
{
    $user_id = Auth::User()->id;
    

    foreach ($rows as $row) 
    {
        $consign_no = Settings::where('name', 'consign_no')->first()->value;
        $increment = $consign_no+1;

        $initial = "12".date("y");
        $consignment_no1 = $initial.$increment;

        $update_setting = Settings::where('name', 'consign_no')->first();
        $update_setting->value = $increment;
        $update_setting->save();

        $shipment = Shipment::create([
            'user_id'                   => $user_id,
            'customer_name'             => $row['customer_name'],
            'customer_address'          => $row['customer_address'],
            'customer_email'            => $row['customer_email'],
            'customer_phone'            => $row['customer_phone'],
            'destination_country'       => $row['destination_country'],
            'destination_city'          => $row['destination_city'],
            'service_type'              => $row['service_type'],
            'tb_date'                   => $row['tb_date'],
            'tb_time'                   => $row['tb_time'],
            'pickup_location'           => $row['pickup_address'],
            'product_name'              => $row['product_name'],
            'quantity'                  => $row['product_quantity'],
            'consignment_no'            => $consignment_no1,
            'weights_id'                => $this->weight_id,
            'product_value'             => $row['product_value'],
            'product_reference'         => $row['product_reference'],
            'remarks'                   => $row['remarks'],
            'status'                    => 'Booked',
        ]);  
    }
  }
}

我有 Laravel 版本 7。我使用的 Excel 文件包是：maatwebsite/excel: 3.1

【问题讨论】：

在创建模型之前进行一些验证以检查是否确实设置了键，您可能有一个空白行、隐藏行或类似的事情发生
@Ballard 但它在行数超过 5 时有效
这并没有改变我所说的，对前 5 行进行一些调试，如果它的 4、3、2,1 等...
@Ballard Okay 会检查的

标签： laravel laravel-7 maatwebsite-excel laravel-excel

【解决方案1】：

这可能是个老问题，但这可以帮助你

    try {
        Excel::import(new YourImportClass(), request()->file('importar_datos'));
        return back()->with("toast_success", "Empleados importados correctamente");
      }catch(\Exception $e)
      {
        return back()->with("toast_error", "Line error " . $e->failures()[0]->row() . " on column: " .
         $e->failures()[0]->attribute() . "with message " . $e->failures()[0]->errors()[0] );
      }

在你的 Import 类上实现这个

use Maatwebsite\Excel\Concerns\WithValidation;
class YourClass implements WithValidation{
 

    public function rules(): array
    {
        return [
            //Your validation logic
        ];
        
    }
}

还有一个名为 SkipEmptyrow 的函数你可以在这里查看文档 https://docs.laravel-excel.com/3.1/imports/validation.html#skipping-empty-rows

【讨论】：