How to use current Basecamp API with ActiveResource?

Question

I am trying to use the Basecamp Classic API ( http://developer.37signals.com/basecamp/comments.shtml ). The current version of basecamp-wrapper gave me the opportunity, one of the things was that the json answers included the page output, but the xml did not. It was easy to fix, but the problem is that the URL structure is not standardized.

The API defines several such things that make me think that it simply separates the paths from the element and the collection path.

Get recent comments (for a commentable resource)
GET /#{resource}/#{resource_id}/comments.xml

Update comment
PUT /comments/#{id}.xml

I made several attempts, and in fact it failed. Attempting to process such comments is hacked at best and actually does not work, because element_path is different from path_path.

class Resource < ActiveResource::Base
  self.site = "https://XXXX.basecamphq.com"
  self.user = "XXXX"
  self.password = "X" # This is just X according to the API, I have also read nil works
  self.format = :xml # json responses include pagination crap

  # Override element path so it isn't nested
  class << self
    def element_path(id, prefix_options={}, query_options={})
      prefix_options, query_options = split_options(prefix_options) if query_options.nil?
      "#{collection_name}/#{URI.parser.escape id.to_s}.#{format.extension}#{query_string(query_options)}"
    end
  end
end

class Project < Resource
end

class Message < Resource

  self.element_name = "post"
  self.prefix = "/projects/:project_id/"
  self.collection_name = "posts"

  def comments
    @comments ||= Comment.all(:params => {:resource => "posts" , :resource_id => id})
  end
end

class Comment < Resource
  self.prefix = "/:resource/:resource_id/"
end

puts m = Message.first(:params => {:project_id => PROJECT_ID})
puts m = Message.find(m.id)
puts m.update_attribute(:title, "name")

update_attribute, - URL-, PUT, .

? ?

.:)

Answer 1

ActiveResource, .

prefix, , find(:all, :from => ''). http://api.rubyonrails.org/classes/ActiveResource/Base.html#method-c-find

class Resource < ActiveResource::Base
  self.site = "https://XXXX.basecamphq.com"
  self.user = "XXXX"
  self.password = "X" # This is just X according to the API, I have also read nil works
  self.format = :xml # json responses include pagination crap
end

class Project < Resource
  def messages
    @messages ||= Message.find(:all, :from => "/projects/#{self.id}/posts.xml")
  end
end

class Message < Resource
  self.element_name = "post"

  def comments
    @comments ||= Comment.find(:all, :from => "/posts/#{self.id}/comments.xml")
  end
end

class Comment < Resource
end

.

project  = Project.find(1)               # GET /projects/1.xml
messages = project.messages              # GET /projects/1/posts.xml
message  = message.first
comments = message.comments              # GET /posts/1/comments.xml
comment.update_attribute(:title,'name')  # PUT /comments/1.xml