[Rails] Onchange of one select_tag, it should update another select_tag which is having same selected value

Dear all,

I have two columns in a table: 1. vehicles, 2. drivers.
The table lists all the vehicles in vehicles column and drivers column
will have select_tag dropdown to select a driver.

For ex, following drivers are set to vehicles.

vehicle1 -> driver1
vehicle2 -> select
vehicle3 -> driver2

Here, when change driver for vehicle1 from driver1 to driver2 using
drop-down list, I am updating the database table for both vehicle1 and
vehicle3. But I need to update the driver to 'select' for vehicle3. May
I know how can I do this?

Thanks,
Ajit

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