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    1. Yii INSERT ... 重复更新

      时间:2023-08-17

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                本文介绍了Yii INSERT ... 重复更新的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                问题描述

                我正在做一个 Yii 项目.如何使用 MySQL 的 ON DUPLICATE 功能(http://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html ) 在 Yii 模型上执行 save() 时?

                I am working on a Yii project. How can I use the ON DUPLICATE feature of MySQL ( http://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html ) when doing a save() on a Yii model?

                我的MySQL如下:

                CREATE TABLE `ck_space_calendar_cache` (
                  `space_id` int(11) NOT NULL,
                  `day` date NOT NULL,
                  `available` tinyint(1) unsigned NOT NULL DEFAULT '0',
                  `price` decimal(12,2) DEFAULT NULL,
                  `offer` varchar(45) DEFAULT NULL,
                  `presale_date` date DEFAULT NULL,
                  `presale_price` decimal(12,2) DEFAULT NULL,
                  `value_x` int(11) DEFAULT NULL,
                  `value_y` int(11) DEFAULT NULL,
                  PRIMARY KEY (`space_id`,`day`),
                  KEY `space` (`space_id`),
                  CONSTRAINT `space` FOREIGN KEY (`space_id`) REFERENCES `ck_space` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION
                ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
                

                我的PHP如下:

                $cache = new SpaceCalendarCache();
                $cache->attributes = $day; //Some array with attributes              
                $cache->save();
                

                如果我的主键 (sapce_id,day) 中存在重复项,我不希望它抱怨,我只希望它使用最新数据进行更新.

                If there is a duplicate in my primary key (sapce_id,day), I don't want it to complain, I just want it to update with the latest data.

                我知道如何在原始 SQL 中做到这一点,我只是想知道是否有一种干净的 Yii 方法来做到这一点.

                I know how to do it in raw SQL, I was just wondering if there is a clean Yii way to do it.

                推荐答案

                我在 beforeValidate() 中检查了是否存在重复项.如果有,我设置 $this->setIsNewRecord(false);

                I overrode beforeValidate() where I checked if a duplicate exists. If one does, I set $this->setIsNewRecord(false);

                似乎有效.不确定它的性能如何.

                Seems to work. Not sure how performant it is.

                这篇关于Yii INSERT ... 重复更新的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

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