Followers/Following

gistfile1.txt

$(document).ready ->
  $("#following_option").on "ajax:complete", (evn, data) ->
    $("#following_option").html(data.responseText)

gistfile2.haml

// users/index.html.haml

#following_option
  - if current_user.follower_of? user
    = render "users/unfollow", user: user
  - else
    = render "users/follow", user: user

gistfile3.haml

// users/_follow.html.haml

= button_to user_followees_path(user), remote: true, class: "btn", form_class: "following_option" do
  %i.icon-user Follow

gistfile4.haml

// users/_unfollow.html.haml

= button_to user_followee_path(id: current_user, user_id: user.id), remote: true, method: :delete, class: "btn", form_class: "following_option" do
  %i.icon-user Unfollow

gistfile5.rb

// followees controller

def create
  current_user.follow @model
  current_user.save
  @model.save
  if request.xhr?
    return render partial: 'users/unfollow', locals: { user: @model }
  end
end

def destroy
  user = User.where(id: params[:user_id]).first
  current_user.unfollow user
  current_user.save
  user.save
  if request.xhr?
    return render partial: 'users/follow', locals: { user: @model }
  end
end