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CityHelper provides you an easy way to add country, state and city select into your app with i18n support and cascading update.
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yzhang/city_helper
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CityHelper ========== CityHelper provides you an easy way to add country, state and city select into your app with i18n support and cascading update. It only support cities in United States, China, Korea and Japan at now, but it's very easy to add other countries in. Install ======= $ script/plugin install git://github.com/yzhang/city_helper.git This will install a cities dir in your config/locales, and a city_helper.rb in your config/initializers to initialize the i18n support, it only support English and Simple Chinese at now. Usage ======= It's very easy to use: country_select(:user, :country, { :only => [:china], # Specify the countries you like to displayed in select. :update => 'state_select_id', # Specify id of state select which you like to be updated when country changed }, html_options) state_select(:user, :state, { :country => :china, # Specify the default states options. :countries => [:china], # set this only when you set :update option in country select, # and this should keep save with the :only options in country select. :update => 'city_select_id', # Specify id of city select which you like to be updated when state changed }, html_options) city_select(:user, :city, { :country => :china, # This is used to set the default city options. :state => :beijing, # This is used to set the default city options. }, html_options) Here's an example to update state and city select when country or state changes: country_select(:user, :country, :only => [:china, :japan, :united_states], :update => 'state') state_select(:user, :state, :country => :china, :countries => [:china, :japan, :united_states], :update => 'city') city_select_tag(:user, :city, :country => :china, :state => :beijing) You can also use them in FormBuilder: form.country_select :country form.state_select :state form.city_select :city You can also use them without object: form.country_select :country state_select_tag :state city_select_tag :city If you need add more cities and states, you can change the Constants in lib/city_helper.rb, it will be better sending me a pull request. Copyright (c) 2009 Yuanyi Zhang, released under the MIT license
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CityHelper provides you an easy way to add country, state and city select into your app with i18n support and cascading update.
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