simple_form input extensions in own gems

app-views-my_gem-foo.html.haml

-#app/views/my_gem/foo.html.haml
= f.input :address_country_id_eq, :as => :country_search, label: 'Country'

lib-my_gem.rb

#lib/my_gem.rb
require 'simple_form_inputs'

#..other gemstuff

lib-simple_form_inputs.rb

#lib/simple_form_inputs.rb
require 'simple_form'                                                          
                                                                              
module SimpleFormMarkdown                                                
  class CountrySearchInput < SimpleForm::Inputs::Base 
    def input                                     
      #your input 
      input_html_options.merge(:some_option=>'foo')                                         
      return_string= @builder.text_field(attribute_name, input_html_options)   
      return return_string.html_safe                                                              
    end                                                                                           
  end                                                                                             
end                                                                                               
                                                                                                  
SimpleForm::Inputs.send(:include, SimpleFormMarkdown)                                             
                                                                                                  
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