How to use the Countries gem

Question

I am trying to use the Countries Gem, but had some basic questions on how to incorporate this gem after I\'ve bundle-installed it.

1. Do I need to create a new contro

Answer 1

You do not need to create a new controller/model to work with the gem.

In order for you to create dropdown, just install the country_select gem (as stated in the doc)

Then to use it, just do that in your views:

country_select(:your_model_name, :your_attribute_name)

To integrate it in a form_for with some extra params like Bootstrap classes or default country selected:

<%= form_for @message, url: contact_path, html: { :class => "form-horizontal " } do |f| %>

    

        <%= f.label :country, :class => "col-md-3 control-label" %>
        

            <%= f.country_select :country, ["United States"], {}, { :class => "form-control" } %>
        
    

    <%= f.submit "Submit", :class => "btn btn-default" %>

<% end %>

For the exact options you have w/ this method, see here:

country_select(method, priority_or_options = {}, options = {}, html_options = {})

Hope it helps !