www:新增问题反馈功能;dashboard:适配问题反馈功能,可以在后台系统和用户沟通
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-- 为已存在的 www_support_feedbacks 表添加 feedback_no 列(分步执行,避免空值 UNIQUE 冲突)
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ALTER TABLE `www_support_feedbacks`
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ADD COLUMN `feedback_no` VARCHAR(20) NOT NULL DEFAULT '' COMMENT '反馈编号(对外展示)' AFTER `id`;
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UPDATE `www_support_feedbacks`
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SET `feedback_no` = CONCAT('FB', DATE_FORMAT(`created_at`, '%Y%m%d'), UPPER(SUBSTRING(MD5(CONCAT(`id`, `created_at`)), 1, 6)))
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WHERE `feedback_no` = '';
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ALTER TABLE `www_support_feedbacks`
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ADD UNIQUE KEY `uk_feedback_no` (`feedback_no`);
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