Drop-down for country-states

Question

Hi I want to implement a drop-down for countries and states.The states drop-down should change its values according to the country selected. Is there any plugin or gem to do this in rails.

Answer 1

Try the Carmen plugin:

http://autonomousmachine.com/posts/2009/4/1/carmen-a-rails-plugin-for-geographic-names-and-abbreviations

You can also check this other stackoverflow post:

Ruby on Rails Country/State Select Enigma

Answer 2

Country State Select is a library that provides an easy API to generate Country and State / Province dropdowns for use in forms.

When implemented correctly, a State / Province dropdown is filled with appropriate regions based on what Country a user has selected.

After it's version 2.0.0 it also dependent to simple_form 3.2

you can also find cities according to the state and country name by using this gem

https://rubygems.org/gems/country_state_select