Untitled

resources :comments, only: [:create, :update] do
   member do
     post 'flag'
   end
end

def update
    @comment = Comment.find(params[:id])
    new_status = @comment.disabled ? false : true

    # binding.pry => I'm not even reaching that method

    if @comment.update(disabled: new_status)
       CommentDisabledMailer.send_comment_disabled_confirmation(@comment).deliver_now
       redirect_to "https://media.giphy.com/media/YfGkjrnVIk3jq/giphy.gif" # a funny gif url
    else
       render json: { errors: @comment.errors.messages }, status: :unprocessable_entity
   end
end

def flag
   @comment.update(flagged: @comment.flagged + 1)
   render json: @comment, serializer: Api::V1::CommentSerializer, status: 201, root: nil
   FlagMailer.send_flag_mail(@comment).deliver_now
end

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
  </head>
  <body>
    <!-- some meta data about my comment -->

    <h2> <%= link_to "Disabled this comment", api_v1_comment_url(@comment), method: :put, action: :update %> </h2>

  </body>
</html>

<a href="<%= api_v1_comment_url(@comment) %>" data-method="put">Disabled this comment</a>