Support Vietnam districts in the back-end

[htdat]

Currently, Woo Viet is using WC City Select for adding Vietnam districts.

However, this feature supports for the front-end only (check-out page), it does not support the back-end.

We need to find a way to support the back-end as well.

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From https://wordpress.org/support/topic/can-lam-ket-noi-tracking-cua-ben-van-chuyen/#post-10198529

[Longkt]

Note: https://gist.github.com/Longkt/49d52806c01ff8f5f6ebe4ce40abec32

Where can I place the code to resolve this issue? Maybe class-wooviet-cities.php
Need to find anywhere to support the districts in the backend, I found one in General Settings and one in Orders.

[htdat]

Where can I place the code to resolve this issue? Maybe class-wooviet-cities.php

Yes.

Need to find anywhere to support the districts in the backend, I found one in General Settings and one in Orders.

I think so. Try to see if there is any other place?

[htdat]

Similar request from the original plugin 8manos/wc-city-select#23

[htdat]

Note: https://gist.github.com/Longkt/49d52806c01ff8f5f6ebe4ce40abec32

This code is not able to run correctly!