ruby on rails - Active record "date" and "nationality" function giving me error. (Undefined method) -


i trying create profile page can input "born_on". using 

class createwinemakers < activerecord::migration   def change     create_table :wine_makers |t|       t.string :name        t.date :born_on       t.text :nationality       t.text :profile        t.text :wine        t.integer :wine_list_id       t.timestamps     end       add_index :wine_makers, :wine_list_id     end  end

here view file. 

<%= simple_form_for winemaker.new |f| %>      <%= f.input :name %>      <%= f.input :profile %>      <%= f.input :wine %>      <%= f.input :born_on %>      <br/>      <%= f.submit "create", :class => 'btn btn-primary' %> <% end %>

the "born_on" giving me error saying method not defined. confused since other inputs working except "born_on" , "nationality". before, "born_on" named "birth_date", , thought naming convention wrong , changed "born_on". here controller. 

class winemakerscontroller < applicationcontroller      def new       @wine_maker = winemaker.new     end      def create       @wine_maker = winemaker.create(wine_maker_params)       redirect_to wine_list_path(@wine_list)     end       def show     end      private      def wine_maker_params     params.require(:wine_maker).permit(:name, :born_on, :nationality,   :profile, :wine )     end end

this seems such easy question couldn't find similar problems..

thank you.


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