1、表:pub_log 中的字段:data 的类型为:text,如图1
2、表:pub_log 中的字段:data 的数据结构为:json,格式化后的数据如下,如图2
{"channel_app_source_uuid":"3efd0cbabf2a11e98f9d54ee75d2ebc1","channel_app_task_uuid":"569d5ddebf2a11e993cb54ee75d2ebc1","channel_code":"weibo","channel_type_code":"weibo_weibo_connect_web","channel_app_task_status":6}
{
"channel_app_source_uuid": "3efd0cbabf2a11e98f9d54ee75d2ebc1",
"channel_app_task_uuid": "569d5ddebf2a11e993cb54ee75d2ebc1",
"channel_code": "weibo",
"channel_type_code": "weibo_weibo_connect_web",
"channel_app_task_status": 6
}
3、现阶段的需求是,如果 “channel_app_task_status”: 6,需要修改为:”channel_app_task_status”: 7,即搜索(“channel_app_task_status”: 6) 并替换为 (“channel_app_task_status”: 7),因此最终的执行结果应该如下:
{"channel_app_source_uuid":"3efd0cbabf2a11e98f9d54ee75d2ebc1","channel_app_task_uuid":"569d5ddebf2a11e993cb54ee75d2ebc1","channel_code":"weibo","channel_type_code":"weibo_weibo_connect_web","channel_app_task_status":7}
{
"channel_app_source_uuid": "3efd0cbabf2a11e98f9d54ee75d2ebc1",
"channel_app_task_uuid": "569d5ddebf2a11e993cb54ee75d2ebc1",
"channel_code": "weibo",
"channel_type_code": "weibo_weibo_connect_web",
"channel_app_task_status": 7
}
4、执行 SQL,影响了 1 行,如图3,执行结果,表:pub_log 中的字段:data 的数据已经修改为: (“channel_app_task_status”: 7),符合预期,如图4
UPDATE `cpa_pub_log` SET `cpa_pub_log`.`data` = REPLACE(`cpa_pub_log`.`data`, '"channel_app_task_status":6', '"channel_app_task_status":7');
5、基于数据库迁移命令,生成如上所示的一条 SQL 的实现,编辑 /console/migrations/m190814_093631_have_pub_number_and_task_status.php
<?php
use yii/db/Expression;
use yii/db/Migration;
/**
* Class m190814_093631_have_pub_number_and_task_status
*/
class m190814_093631_have_pub_number_and_task_status extends Migration
{
/**
* {@inheritdoc}
*/
public function safeUp()
{
$this->update('{{%pub_log}}', ['data' => new Expression('REPLACE([[data]], /'"channel_app_task_status":6/', /'"channel_app_task_status":7/')')]);
}
/**
* {@inheritdoc}
*/
public function safeDown()
{
echo "m190814_093631_have_pub_number_and_task_status cannot be reverted./n";
return false;
}
/*
// Use up()/down() to run migration code without a transaction.
public function up()
{
}
public function down()
{
echo "m190814_093631_have_pub_number_and_task_status cannot be reverted./n";
return false;
}
*/
}
6、重置为 6 之后,执行数据库迁移命令,如图5
PS E:/wwwroot/channel-pub-api> ./yii migrate
Yii Migration Tool (based on Yii v2.0.15.1)
Total 1 new migration to be applied:
m190814_093631_have_pub_number_and_task_status
Apply the above migration? (yes|no) [no]:yes
*** applying m190814_093631_have_pub_number_and_task_status
> update {{%pub_log}} ... done (time: 0.010s)
*** applied m190814_093631_have_pub_number_and_task_status (time: 0.022s)
1 migration was applied.
Migrated up successfully.
7、查看表:pub_log 中的字段:data 的数据已经修改为: (“channel_app_task_status”: 7),符合预期
{"channel_app_source_uuid":"3efd0cbabf2a11e98f9d54ee75d2ebc1","channel_app_task_uuid":"569d5ddebf2a11e993cb54ee75d2ebc1","channel_code":"weibo","channel_type_code":"weibo_weibo_connect_web","channel_app_task_status":7}
{
"channel_app_source_uuid": "3efd0cbabf2a11e98f9d54ee75d2ebc1",
"channel_app_task_uuid": "569d5ddebf2a11e993cb54ee75d2ebc1",
"channel_code": "weibo",
"channel_type_code": "weibo_weibo_connect_web",
"channel_app_task_status": 7
}
原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/tech/pnotes/250474.html
