def posts_all(options = {})
      params = prepare_posts_params(options.clone, [:tag])
      response = request(API_PATH_POSTS_ALL, params)
      parse_post_collection(response.body)
    end
def posts_all(options = {})
      params = prepare_posts_params(options.clone, [:tag])
      response = request(API_PATH_POSTS_ALL, params)
      parse_post_collection(response.body)
    end
Returns a list of all posts, filtered by argument.

   # get all (this is a very expensive query)
   d.posts_all

   # get all posts matching ruby
   d.posts_all(:tag => WWW::Delicious::Tag.new('ruby'))


 === Options
 <tt>:tag</tt>:: a tag to filter by. It can be either a <tt>WWW::Delicious::Tag</tt> or a +String+.