Rails - Apr 2009 - Combining acts_as_taggable, will_paginate and scope_out

I want to display published posts that are tagged using will_paginate.
Options include:

1. Add :conditions => { :published => true } to the find options. Does not
work because will_paginate will then return too many records.
2. Use scope_out in class Post like this:

scope_out :published, :conditions => { :published => true }

Controller:

  def tagged_with
    @tag = params[:id]

    # Thanks go out to http://blog.wolfman.com/posts/33
    options = Post.find_options_for_find_tagged_with(@tag).merge(:page =>
params[:page], :per_page => property(:items_per_page))
    #@posts = Post.paginate(options)
    @posts = Post.paginate_published(options)

    redirect_to :action => :tag_not_found if @Posts.empty?

    # Create a new comment in memory
    @comment = Comment.new( :Post => @Post)
  end

But this yields the error:

test_show_nonpublished_posts(FrontendControllerTest):
ActiveRecord::RecordNotFound: Couldn''t find Post without an ID
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1572:in
`find_from_ids''
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:616:in
`find''
(eval):2:in `find_published''
(eval):4:in `with_published''
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:2148:in
`with_scope''
(eval):3:in `with_published''
(eval):2:in `find_published''

Any ideas why?

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Found! :D

Model:

  # XXL name to prevent override meta-methods such as paginate_published
  def self.paginate_all_published_posts(options)
    self.with_published do
      return self.paginate(options)
    end
  end

Controller:

@posts = Post.paginate_all_published_posts(options)

On Sun, Apr 26, 2009 at 4:52 PM, Commander Johnson <
commanderjohnson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> I want to display published posts that are tagged using will_paginate.
> Options include:
>
> 1. Add :conditions => { :published => true } to the find options.
Does not
> work because will_paginate will then return too many records.
> 2. Use scope_out in class Post like this:
>
> scope_out :published, :conditions => { :published => true }
>
> Controller:
>
>   def tagged_with
>     @tag = params[:id]
>
>     # Thanks go out to http://blog.wolfman.com/posts/33
>     options = Post.find_options_for_find_tagged_with(@tag).merge(:page
=>
> params[:page], :per_page => property(:items_per_page))
>     #@posts = Post.paginate(options)
>     @posts = Post.paginate_published(options)
>
>     redirect_to :action => :tag_not_found if @Posts.empty?
>
>     # Create a new comment in memory
>     @comment = Comment.new( :Post => @Post)
>   end
>
> But this yields the error:
>
> test_show_nonpublished_posts(FrontendControllerTest):
> ActiveRecord::RecordNotFound: Couldn''t find Post without an ID
>
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1572:in
> `find_from_ids''
>
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:616:in
> `find''
> (eval):2:in `find_published''
> (eval):4:in `with_published''
>
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:2148:in
> `with_scope''
> (eval):3:in `with_published''
> (eval):2:in `find_published''
>
> Any ideas why?
>
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