Rails model not getting the params correctly - ruby-on-rails

Question

i'm having a kinda weird & annoying bug with Rails. I have a HAML form, a model, and a method for handling it:
View
%form{ :action => "/new", :method => "post", :style=>"margin-top: 6px"}
%input{:type=>"hidden", :name=>"authenticity_token", :value=>form_authenticity_token.to_s}
%input{:type => "text", :name => "blogName", :placeholder=>"Blog name"}
%input{:type => "text", :name => "blogSubdomain", :placeholder=>"Blog URL"}
%input{:type => "text", :name => "username", :placeholder=>"username"}
%input{:type => "text", :name => "email", :placeholder=>"email"}
%input{:type => "password", :name => "password", :placeholder=>"password"}
%br/
%input{:type => "submit", :value => "Send", :class => "btn btn-primary"}
- unless session[:error].nil?
%div{:class=>"alert alert-error", :style=>"font-size:13px; font-weight:normal;"}
%strong Please correct the following errors
%br
- session[:error].each do |value|
- unless value.nil?
%li= "#{value}"
- session[:error]=nil
Model:
class User
include MongoMapper::Document
key :screen_name, String, :required => true, :unique => true
key :blog_name, String, :required => true, :unique => true
key :blog_subdomain, String, :required => true, :unique => true
key :email, String, :required => true, :unique => true, :format => /^([^\s]+)((?:[-a-z0-9]\.)[a-z]{2,})$/i
key :password, String, :required => true
key :admin, Boolean
timestamps!
validate :finalValidate
before_save :stripSpaces, :hashPassword
def stripSpaces
self.blog_subdomain = self.blog_subdomain.gsub(/[\ _]/, "-")
end
def finalValidate
if blog_subdomain.length > 10
errors.add(:blog_subdomain, "Your chosen subdomain is too long, the maximum is 9 characters")
end
case blog_subdomain
when "www"
when "api"
errors.add(:blog_subdomain," - Sorry but that subdomain is reserved!")
end
end
def hashPassword
self.password = Digest::SHA512.hexdigest(self.password)
end
end
And the method to do it
def new_post
if session[:r]
redirect_to root_path, :subdomain => nil
else
user = User.new({
:screen_name=>params[:username],
:blog_name => params[:blogName],
:blog_subdomain => params[:blogSubdomain],
:email => params[:email],
:password => params[:password],
:admin => false
})
if user.save
session[:screen_name] = user.screen_name
session[:blog_subdomain] = user.blog_subdomain
session[:blog_name] = user.blog_name
session[:twitter_user] = "nothin"
session[:r] = true
flash[:success] = "Blog created!"
redirect_to root_path, :subdomain => user.blog_subdomain
else
errors = Array.new()
for i in 0..user.errors.full_messages.count
errors.push(user.errors.full_messages[i])
end
session[:error] = errors
flash[:error] = "Error creating blog"
redirect_to '/new'
end
end
end
The method fails on if user.save, going straight to the else statement. I'm getting errors when passing the email and password. MongoMapper returns:
Email can't be blank
Email has already been taken
Email is invalid
Password can't be blank
If I remove the validations then the values are just nil. I double checked all, but I couldn't get what's wrong. On the log I see how the params are being sent:
Started POST "/new" for 127.0.0.1 at 2012-03-10 20:46:56 +0100
Processing by ActionsController#new_post as HTML
Parameters: {"authenticity_token"=>"T7J8DDaWWd25LBP6dRgbvpAs4bkC/zLk3GiQ5rVLmiw=", "blogName"=>"wut", "blogSubdomain"=>"WUT", "username"=>"someuser", "email"=>"some#validmail.net", "password"=>"[FILTERED]"}
Redirected to http://myapp.dev/new
Completed 302 Found in 745ms
What I'm doing wrong?
EDIT: Put a logger on the model, and bot mail and password classes are NilClass

Answer 1

Shouldn't be there rather
user = User.new(
:screen_name=>params[:username],
:blog_name => params[:blogName],
:blog_subdomain => params[:blogSubdomain],
:email => params[:email],
:password => params[:password],
:admin => false
)
?

Answer 2

The problem was attr_accessible. I didn't added the email and password fields to it, and it was returning nil because of that