this is the current user.rb -- changed unless @user.update_or_create to unless User.update_or_create

current user.rb

get "/user/profile" do
  haml :profile
end

get "/user/profile/change" do
  haml :change_profile
end

post "/user/profile" do
#  unless @user.create(:nickname => params[:nickname],
#                      :formatted_name => params[:formatted_name], 
#                      :location => params[:location], 
#                      :description => params[:description], 
#                      :sex => params[:sex], 
#                      :relationship_status => params[:relationship_status], 
#                      :interests => params[:interests], 
#                      :education => params[:education])
#  end
  unless User.update_or_create( :nickname => params[:nickname],
                                 :formatted_name => params[:formatted_name],
                                 :location => params[:location],
                                 :description => params[:description],
                                 :sex => params[:sex],
                                 :relationship_status => params[:relationship_status],
                                 :interests => params[:interests],
                                 :education => params[:education])
    flash[:error] = @user.errors.values.join(",")
    redirect "/user/profile/change"
  end
  redirect "/"
end

post '/user/status' do
  Status.create(:text => params[:status], :user => @user)
  redirect "/"
end

post '/user/wall' do
  Post.create(:text => params[:status], :user => @user, :wall_id => params[:wallid])
  redirect "/user/#{params[:nickname]}"
end

get "/user/:nickname" do
  @myself = @user
  @viewed_user = User.first(:nickname => params[:nickname])
  @viewing_self = (@viewed_user == @myself)
  all = [] + @viewed_user.activities + @viewed_user.wall.posts
  @all = all.sort {|x,y| y.created_at <=> x.created_at}
  haml :user
end