laravel实现批量更新多条记录的方法示例

php;"><?phpnamespace App/Models;use DB;use Illuminate/Database/Eloquent/Model;/** * 学生表模型 */class Students extends Model{ protected $table = 'students'; //批量更新 public function updateBatch($multipleData = []) {  try {   if (empty($multipleData)) {    throw new /Exception("数据不能为空");   }   $tableName = DB::getTablePrefix() . $this->getTable(); // 表名   $firstRow = current($multipleData);   $updateColumn = array_keys($firstRow);   // 默认以id为条件更新，如果没有ID则以第一个字段为条件   $referenceColumn = isset($firstRow['id']) ? 'id' : current($updateColumn);   unset($updateColumn[0]);   // 拼接sql语句   $updateSql = "UPDATE " . $tableName . " SET ";   $sets  = [];   $bindings = [];   foreach ($updateColumn as $uColumn) {    $setSql = "`" . $uColumn . "` = CASE ";    foreach ($multipleData as $data) {     $setSql .= "WHEN `" . $referenceColumn . "` = ? THEN ? ";     $bindings[] = $data[$referenceColumn];     $bindings[] = $data[$uColumn];    }    $setSql .= "ELSE `" . $uColumn . "` END ";    $sets[] = $setSql;   }   $updateSql .= implode(', ', $sets);   $whereIn = collect($multipleData)->pluck($referenceColumn)->values()->all();   $bindings = array_merge($bindings, $whereIn);   $whereIn = rtrim(str_repeat('?,', count($whereIn)), ',');   $updateSql = rtrim($updateSql, ", ") . " WHERE `" . $referenceColumn . "` IN (" . $whereIn . ")";   // 传入预处理sql语句和对应绑定数据   return DB::update($updateSql, $bindings);  } catch (/Exception $e) {   return false;  } }}

// 要批量更新的数组$students = [ ['id' => 1, 'name' => '张三', 'email' => 'zhansan@qq.com'], ['id' => 2, 'name' => '李四', 'email' => 'lisi@qq.com'],];// 批量更新app(Students::class)->updateBatch($students);

UPDATE pre_studentsSET NAME = CASEWHEN id = 1 THEN '张三'WHEN id = 2 THEN '李四'ELSE NAMEEND, email = CASEWHEN id = 1 THEN 'zhansan@qq.com'WHEN id = 2 THEN 'lisi@qq.com'ELSE emailENDWHERE id IN (1, 2)