Rails3 ActiveResource Post Call delivers an empty Parameter Hash - ruby-on-rails-3

Question

I am trying to create a new "Person" in a Sinatra API app from a Rails3 app using ActiveResource and Json. In Rails3, I created a "Person" model and using ActiveResource I correctly call the API, which correctly reads the URL, but no parameters seem to get passed with the object.
From Rails3 Person Model:
class Person < ActiveResource::Base
self.site = "http://127.0.0.1:9393/"
self.collection_name = "person/add"
self.format = :json
end
From the Rails3 console:
u=Person.new({"last_name"=>"Bill", "first_name"=>"Smith"})
=> #<Person:0xb73176f0 #attributes={"last_name"=>"Bill", "first_name"=>"Smith"}, #prefix_options={}>
puts u.attributes
=> last_nameBillfirst_nameSmith
u.save
=> True
From the Sinatra app:
puts #app.params.keys
=> Nil
puts #app.params['last_name']
=> Nil
puts #app.params[:last_name]
=> Nil
Using the IRB Console this works:
Net::HTTP.post_form(URI.parse('http://127.0.0.1:9393/user/add.json'),{'first_name' => 'Smith', 'last_name' => 'Bill'})
Can someone please give some direction as to what I missed or am doing wrong thank you.

Answer 1

Person object should know attributes, as you did on console. When doing Person.find, it gets attrs via activeresource, but Person.new doesn't know them so that any-way to tell to Person is required at Person.new like the following:
class PeopleController < ApplicationController
...
def new
#person = Person.new(:name=>nil, :age=>nil, ...)
end
...
Does this answer?