Laravel实现批量更新多条数据

在service层拼接需要更新的数据，并调用该函数：

 foreach ($taskInfo as $info) {
   $cityId = $info['requirement']['city_ids'];
   //此处省略n行代码
   $cityInfo = ['id' => $dataId[$info['id']]['id'], 'city_id' => $cityId];
   if ($cityInfo) {
    $cityInfos[] = $cityInfo;
   }
  }
  $res = $this->waybillDriverInfoModel->updateBatch($cityInfos);
 }

拼接的批量更新的数组格式为：

$students = [

[‘id' => 1, ‘city_id' => ‘100010'],

[‘id' => 2, ‘city_id' => ‘100011'],

];

生成的SQL语句如下：

UPDATE base_info SET `city_id` = CASE WHEN `id` = 1 THEN 100010 WHEN `id` = 2 THEN 100011 ELSE `city_id` END WHERE `id` IN (1,2)

因为每次只操作20条数据，所以这样拼接的字符串不会太长，符合mysql的字符串长度的要求，解决问题。

本文主要讲解了Laravel实现批量更新多条数据的方法，更多关于Laravel的使用技巧请查看下面的相关链接