Laravel 批量更新数据

Laravel Laravel PHP

发布时间 : 2018-09-11 11:57

阅读 :

熟悉laravel的童鞋都知道，laravel有批量一次性插入多条记录，却没有一次性按条件更新多条记录。

可以将该方法封装到一个 BaseModel 里面


    /**
     * 批量更新
     * @param array $multipleData 更新的数据
     * @param string $key 更新的条件
     * @return bool
     * User: lizd
     * Time: 2018/9/11 下午12:03
     */
    public function updateBatch($multipleData = [],$key='id')
    {
        try {
            if (empty($multipleData)) {
                throw new \Exception("数据不能为空");
            }

            $tableName = $this->table; // 表名
            $firstRow  = current($multipleData);

            if ( isset($firstRow[$key]) ) {
                $referenceColumn = $key;
                unset($firstRow[$key]);
                $updateColumn = array_keys($firstRow);
            } else {
                throw new \Exception('索引条件不存在: the key is not existent!');
            }

            // 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;
        }
    }

转载请注明来源，欢迎对文章中的引用来源进行考证，欢迎指出任何有错误或不够清晰的表达。可以在下面评论区评论，也可以邮件至 lzdong@foxmail.com