Rails - Apr 2006 - Newbie question about acts_as_taggable

I installed the acts_as_taggable plugin that DHH wrote.

Now I have met problems on using it:

class Book < ActiveRecord::Base
  acts_as_taggable
end

mybook = Book.new
mybook.tag_with(''red library book'')

But the system tell the wrong message:
undefined method `parse'' for Tag:Class
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/base.rb:1123:in
`method_missing''
#{RAILS_ROOT}/vendor/plugins/acts_as_taggable/lib/acts_as_taggable.rb:42:in 
`tag_with''
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/connection_adapters/abstract/database_statements.rb:51:in
`transaction''
d:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.0/lib/active_record/transactions.rb:91:in
`transaction''
#{RAILS_ROOT}/vendor/plugins/acts_as_taggable/lib/acts_as_taggable.rb:39:in 
`tag_with''


btw: it seems the api at http://taggable.rubyforge.org/ does not fit the 
usage of the plugin at all,there seems to be two implementation of 
acts_as_taggable.

-- 
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I know the difference between the gem and plugin from 
http://www.notio.com/2006/02/rails_acts_as_t.html

Since the plugin is the recommended way to use taggable,i decide to use 
it,but error found,anyone has met such a situation?

-- 
Posted via http://www.ruby-forum.com/.

btw, I am using rails 1.1 while not edge rails,i think the plugin can be 
used under this kind enviroment,isn''t it?

-- 
Posted via http://www.ruby-forum.com/.

Frank wrote:
> I installed the acts_as_taggable plugin that DHH wrote.
>
> Now I have met problems on using it:
>
> class Book < ActiveRecord::Base
>   acts_as_taggable
> end
>
> mybook = Book.new
> mybook.tag_with(''red library book'')
>
> But the system tell the wrong message:
> undefined method `parse'' for Tag:Class
Have you defined a class named Tag?
--
Bryan Buecking

I got my work using 
http://wiki.rubyonrails.org/rails/pages/ActsAsTaggablePluginHowto


Bryan Buecking wrote:
> Frank wrote:
>>
>> But the system tell the wrong message:
>> undefined method `parse'' for Tag:Class
> Have you defined a class named Tag?
> --
> Bryan Buecking

-- 
Posted via http://www.ruby-forum.com/.

#if bryan /* Apr 03, 01:37 */
> Frank wrote:
> >I installed the acts_as_taggable plugin that DHH wrote.
> >
> >Now I have met problems on using it:
> >
> >class Book < ActiveRecord::Base
> >  acts_as_taggable
> >end
> >
> >mybook = Book.new
> >mybook.tag_with(''red library book'')
> >
> >But the system tell the wrong message:
> >undefined method `parse'' for Tag:Class
> Have you defined a class named Tag?
#endif /* bryan@vanten.com */

To clarify for any other newbies (like myself):

If you have a Tag class already defined, say for example in
app/models/tag.rb, then remove it first.  You dont need to create it.

I just hit the same problem after switching over from the gem version to
the plugin one.

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 Why God never received a PhD:
 3. It had no references.