Thoughts on the backend implementation scheme of drag and drop sorting

Kanban software, I believe that most people have used similar software, mainly card dragging. Cards can be dragged from left to right, up and down. How can the back-end achieve this without having to rearrange the number every time to improve performance? In enterprise software, there are many trees and lists that support drag sorting. This design can improve efficiency compared with the traditional up and down direct movement, So many times, product managers will reasonably consider using drag sorting to improve user experience.

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Aikuai pure bypass routing mode operation configuration

Recently, in order to use the flow control function of ikuai and only want to control the flow of wireless wifi, although there is a main route RouteOS in my previous home architecture that can control the flow, see the previous article on the whole process of self use home network transformation plan for details, The visualization of ikuai is really possible. Although there is an openwrt bypass route, it is only used for scientific Internet access, so we want to add a separate bypass route for wifi flow control.

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