Issues with acts_as_taggable plugin

rubyonrails-talk
1

Not the gem.

I've got something working in console, but not in controller. Any idea why?

This is the plugin not the gem of acts_as_taggable

*View* <code> <h1>Listing elements</h1>

<% if @elements.blank? %>   <p>There are currently no elements in the system tagged <%= "&quot;#{params[:tag_name]}&quot;" %>.</p> <% else %>   <p>Currently tracking <%= @elements.size %> elements in the system tagged <%= "&quot;#{params[:tag_name]}&quot;" %>.</p>

<table>   <tr>   </tr>

    <%= render :partial => 'element', :collection => @elements %>

</table>

<% end %> <br />

<%= link_to 'New element', new_element_path %> </code>

This returns that the array is empty and there's nothing in the tag in http://localhost:3000/elements/tagged/:tag_name

SO teh view is seeing it, but the controller is not getting it. Because in the console, using a string in place of params(:tag_name) returns an actual entry.

*Controller*

<code>   def tagged     # This should take the :tag_name in the url string and pull elements that match     # It does not. I suck as a programmer.     @elements = Element.find_tagged_with(params[:tag_name])

    respond_to do |format|       format.html # index.rhtml       format.xml { render :xml => @elements.to_xml }     end   end </code>

*Models*

<code> class Element < ActiveRecord::Base

  acts_as_taggable   [...] end </code>

*CONSOLE*

This does work: <code> soho:~/Sites/work/koji jathayde$ script/console Loading development environment.

@elements = Element.find_tagged_with("spam")

DEPRECATION WARNING: The :dependent => true option is deprecated and will be removed from Rails 2.0. Please use :dependent => :destroy instead. See Ruby on Rails — A web-app framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern. for details. See Ruby on Rails — A web-app framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern. for details. (called from has_many at /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4.5618/lib/active_record/associations.rb:550) => [#<Element:0x330a8d8 @attributes={"name"=>"Koji Test One", "updated_at"=>"2006-11-30 18:16:40", "id"=>"1", "description"=>"supa sexy description", "filename"=>nil, "element_type_id"=>"3", "created_at"=>nil}]

But this does not (because there is no value in params[:tag_list]:

@elements = Element.find_tagged_with(params[:tag_list])

NameError: undefined local variable or method `params' for #<Object:0x1f59f0>         from (irb):4 </code>