Tag clouds

rubyonrails-talk
1

I was working through the simply rails book, i have completed up to chapter 10, now i want to add tag clouds to the welcome page ? how to do it ?

I have installed acts_as_taggable_on_steroids plugin from here http://svn.viney.net.nz/things/rails/plugins/acts_as_taggable_on_steroids

I was going through their readme file as per the readme file i did the following changes

1)     in app/helpers/application_helper.rb file

   module ApplicationHelper

    include TagsHelper

  end

  2)      class StoriesController < ApplicationController

      def tag_cloud

       @tags = Story.tag_counts

       end

     end   now i am getting Story.tag_counts in the script/console

  3) in app/views/stories/index.html.erb file i have added

<% tag_cloud @tags, %w(css1 css2 css3 css4) do |tag, css_class| %>

    <%= link_to tag.name, { :action => :tag, :id => tag.name }, :class => css_class %>

<% end %>

4) in /public/stylesheets/style.css

  i have added

  .css1 { font-size: 1.0em; }

  .css2 { font-size: 1.2em; }

  .css3 { font-size: 1.4em; }

  .css4 { font-size: 1.6em; }

   after doing all these when i access http://0.0.0.0:3000/stories/

   i am getting the error message as

   undefined method `tag_cloud' for #<ActionView::Base:0xb5879a78>

   can anyone help me to correct this error ?

2

You are trying to use a controller method like a helped method. Try
moving the method to applicationhelper and seeing if that works

3

Ryan Bigg wrote:

You are trying to use a controller method like a helped method. Try moving the method to applicationhelper and seeing if that works

you mean moving

def tag_cloud

  @tags = Story.tag_counts

end

to app/helpers/application_helper.rb

4

Sulekha Mariam wrote:

Ryan Bigg wrote:

You are trying to use a controller method like a helped method. Try moving the method to applicationhelper and seeing if that works

you mean moving

def tag_cloud

  @tags = Story.tag_counts

end

to app/helpers/application_helper.rb

i moved tag_cloud method from StoriesController to app/helpers/application_helper.rb

now i am getting the error

Showing stories/index.html.erb where line #4 raised:

wrong number of arguments (2 for 0)

5

Sulekha Mariam wrote:

[...]

> def tag_cloud >

[...]

now i am getting the error

Showing stories/index.html.erb where line #4 raised:

wrong number of arguments (2 for 0)

  Your method accepts no argument. Try something like:

def tag_cloud(args*)

  I don't remember if this is the correct syntax. Search for it. :slight_smile:

  HTH,

6

irb(main):001:0> def foo(*args) irb(main):002:1> puts args irb(main):003:1> end => nil irb(main):004:0> foo "hello" hello => nil irb(main):005:0> foo "hello", "world" hello world => nil irb(main):006:0> foo "hello", "world", "I'm alive" hello world I'm alive => nil

  HTH,

7

thanks a lot, but can you give ideas/pointers as on how to implement the tag cloud given in the following page using rails