Adding button click counter in rails 3 - model-view-controller

Question

I want to add buttons on my article so that I can know the number of times its clicked and update counter on the database, I am using mongoid ,my model is:
class Article
include Mongoid::Document
include Mongoid::Timestamps
field :title, :type => String
field :content, :type => String
field :likes, :type => Integer ,:default => 0
field :dislikes, :type =>Integer, :default => 0
field :spam, :type => Integer, :default => 0
end
My articles show controller is:
def show
#article = Article.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.json { render :json => #article }
end
end
My View for show is:
<p id="notice"><%= notice %></p>
<p>
<b>Title:</b>
<%= #article.title %>
</p>
<p>
<b>Content:</b>
<%= raw #article.content %>
</p>
Likes : <%= #article.likes %> <br/>
Dislikes : <%= #article.dislikes %><br/>
Spams : <%= #article.spam %><br/>
<%= link_to 'Edit', edit_article_path(#article) %> |
<%= link_to 'Back', articles_path %>
I find anything about it in internet.
How can I achieve it?

Answer 1

The easiest thing to do would be add a click_count integer attribute to your Article model and then increment this in your controller code:
def show
#article = Article.find(params[:id])
#article.increment! :click_count
respond_to do |format|
format.html # show.html.erb
format.json { render :json => #article }
end
end

Answer 2

i got it done, phew!
I added the following form in my show.html.erb:
<%=form_for(#article,:action=>"update") do |f| %>
<%= submit_tag "Like", :name=>"like"%>
<%= submit_tag "Dislike",:name=>"dislike"%>
<%= submit_tag "Spam",:name=>"spam" %>
<%end%>
and wrote the following update controller:
def update
#article=Article.find(params[:id])
if params[:like]
#article.likes=#article.likes+1
elsif params[:dislike]
#article.dislikes=#article.dislikes+1
elsif params[:spam]
#article.spams=#article.spams+1
end
respond_to do |format|
if #article.update_attributes(params[:article])
format.html {redirect_to #article, :notice => "Article Updated"}
else
format.html {render :action=>"edit", :notice=> "Unable to update Article , sorry! :("}
end
end
end
It worked like a charm.