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@tonywok
Created July 7, 2009 00:09
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class ShortUrlsController < ActionController::Base
# before_filter :login_required
def index
@urls = Url.paginate :page => params[:page], :per_page => 4, :order => 'updated_at DESC'
end
def create_link
@url = Url.new(:long_url => params['url'])
@url.save!
@url = Url.find_by_long_url(@url.long_url)
# render :text => 'http://localhost:3000/' + @url.short_url
#render :template => 'short_urls/index'
end
def redirect_to_original
@url = Url.find_by_id(from_64(params['short_url']))
redirect_to @url.long_url
end
def test_url_shortener
render :template => 'short_url/test_form'
end
private
def from_64(s)
tot = 0
s.split('').reverse.each_with_index do |c, place|
n = Url::VALID_BASE64_CHARS.index(c)
tot += (n * (64 ** place))
end
tot
end
end
<h1>Url Listing</h1>
<table padding = 2px>
<tr>
<td><center><b>long url</b></center></td>
<td><center><b>short url</b></center></td>
</tr>
<% for url in @urls %>
<tr>
<td align = "center">
<a href = "<%=h url.long_url %>"> <%=h url.long_url %> </a>
</td>
<td align = "center">
<a href = "http://localhost:3000/<%=h url.short_url %>"> <%=h url.short_url %> </a>
</td>
</tr>
<% end %>
<tr>
<td colspan = '2', align = "center"><%= will_paginate @urls %></td>
</tr>
</table>
<br />
<br />
<%= link_to 'New Url to be Shortened', new_short_url_path %>
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