ruby on rails - How to add a user's email to a list when a button is clicked -

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i new rails, sorry if pretty obvious. want users click button (i'm using devise), , when pressed, email added onto list. also, want counter shows how many people have signed up. how do this?

i don't know list looks but

to contain user's email, add email column on user model or something. http://guides.rubyonrails.org/active_record_migrations.html

class addemailtousers < activerecord::migration   def change     add_column :users, :email, :string   end end

to show how many people have signed up, use class method.

user.count(:email)

it unclear question honestly, if understanding correct.


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