Laravel 根据字段批量更新方法
/** 批量更新
* @param array $multipleData 更新数据
* @param String $field 更新条件
* @param int $num 一次更新几条
* @return bool|int
*/
public function updateBatch(Array $multipleData = [], String $field = 'id', Int $num = 1000)
{
try {
if (empty($multipleData)) {
throw new \Exception("数据不能为空");
}
$tableName = env('DB_PREFIX') . $this->getTable(); // 表名
$firstRow = current($multipleData);
$updateColumn = array_keys($firstRow);
// 默认以id为条件更新,如果没有则以第一个字段为条件
if($field){
$referenceColumn = $field;
$k = array_search($field, $updateColumn);
unset($updateColumn[$k]);
} else{
$referenceColumn = current($updateColumn);
unset($updateColumn[0]);
}
//一次更新指定条数
$onceData = array_chunk($multipleData, $num);
$updateNum = 0;
foreach ($onceData as $item){
// 拼接sql语句
$updateSql = "UPDATE " . $tableName . " SET ";
$sets = [];
$bindings = [];
foreach ($updateColumn as $uColumn) {
$setSql = "`" . $uColumn . "` = CASE ";
foreach ($item 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
$updateNum += DB::update($updateSql, $bindings);
}
return $updateNum;
} catch (\Exception $e) {
return false;
}
}
在Model 的Base类里加入以上方法就可以直接调用了。