+ has_many :diary_entries, :order => 'created_at DESC'
+ has_many :messages, :foreign_key => :to_user_id, :order => 'sent_on DESC'
+ has_many :new_messages, :class_name => "Message", :foreign_key => :to_user_id, :conditions => "message_read = 0", :order => 'sent_on DESC'
+ has_many :sent_messages, :class_name => "Message", :foreign_key => :from_user_id, :order => 'sent_on DESC'
+ has_many :friends
+ has_many :tokens, :class_name => "UserToken"
+ has_many :preferences, :class_name => "UserPreference"
+
+ validates_presence_of :email, :display_name
+ validates_confirmation_of :email, :message => 'Email addresses must match'
+ validates_confirmation_of :pass_crypt, :message => 'Password must match the confirmation password'
+ validates_uniqueness_of :display_name, :allow_nil => true
+ validates_uniqueness_of :email
+ validates_length_of :pass_crypt, :minimum => 8
+ validates_length_of :display_name, :minimum => 3, :allow_nil => true
+ validates_format_of :email, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i
+ validates_format_of :display_name, :with => /^[^\/;.,?]*$/
+ validates_numericality_of :home_lat, :allow_nil => true
+ validates_numericality_of :home_lon, :allow_nil => true
+ validates_numericality_of :home_zoom, :only_integer => true, :allow_nil => true
+
+ before_save :encrypt_password
+
+ file_column :image, :magick => { :geometry => "100x100>" }
+
+ def after_initialize
+ self.creation_time = Time.now if self.creation_time.nil?
+ end
+
+ def encrypt_password
+ if pass_crypt_confirmation
+ self.pass_salt = OSM::make_token(8)
+ self.pass_crypt = OSM::encrypt_password(pass_crypt, pass_salt)
+ end
+ end
+
+ def self.authenticate(options)
+ if options[:username] and options[:password]
+ user = find(:first, :conditions => ["email = ? OR display_name = ?", options[:username], options[:username]])
+ user = nil if user and user.pass_crypt != OSM::encrypt_password(options[:password], user.pass_salt)
+ elsif options[:token]
+ token = UserToken.find(:first, :include => :user, :conditions => ["user_tokens.token = ?", options[:token]])
+ user = token.user if token
+ end
+
+ if user
+ user = nil unless user.active? or options[:inactive]
+ end
+
+ token.update_attribute(:expiry, 1.week.from_now) if token and user
+
+ return user
+ end
+
+ def to_xml
+ doc = OSM::API.new.get_xml_doc
+ doc.root << to_xml_node()
+ return doc
+ end