laravel批量更新多条记录

最新推荐文章于 2024-08-20 09:34:10 发布

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本文介绍了一种使用PHP实现的数据模型批量更新方法，该方法通过构造复杂的SQL语句来高效地更新大量数据记录。

创建数据模型

<?php
namespace App\Models;

use DB;
use Illuminate\Database\Eloquent\Model;

/**
 * demo表模型
 */
class Demo extends Model
{
    protected $table = 'demotable';

    //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;
        }
    }
}

测试数据

// 要批量更新的数组
$param = [
    ['id' => 1, 'name' => '张三', 'email' => 'zhansan@163.com'],
    ['id' => 2, 'name' => '李四', 'email' => 'lisi@163.com'],
];

// 批量更新
app(Demo::class)->updateBatch($param);

打印出SQL执行语句

UPDATE demotable
SET NAME = CASE
WHEN id = 1 THEN
    '张三'
WHEN id = 2 THEN
    '李四'
ELSE
    NAME
END,
 email = CASE
WHEN id = 1 THEN
    'zhansan@163.com'
WHEN id = 2 THEN
    'lisi@163.com'
ELSE
    email
END
WHERE
    id IN (1, 2)

完成