## profile_controller.rb
before_filter :get_user

protected 

##show.html.erb

<% if @user = current_user %>
  <%= render :partial => 'profiles/about_me_edit_button' %>
<% end %>

@tags.each do |element|
              element.sub! "#{element}", "<%= link_to('#{element}', :url => { :controller => 'tags', :action => '#{element}' }) %>"
      end

@tags.each do |element|
              element.sub! "#{element}", "#{link_to(element, :url => { :controller => 'tags', :action => element})}"
      end

<%= link_to_function("Edit", nil, :id => "about_me_edit_button") do |page|
                page[:about_me].replace :partial => 'profiles/about_me_form'
                page[:about_me_edit_button].replace :partial => 'profiles/about_me_cancel_button'
        end %>

#very rudimentary version to get you started

<div id="about_me_form">
        <%= link_to_function("cancel", nil, :id => "about_me_edit_button") do |page|
                page[:about_me].toggle

<script type="text/javascript">
         $(document).ready(function() {
           $('about_me_form').hide();
     });
        </script>

  def test_bad_signup
    #check we can't signup without all required fields
    post :signup, :user => { :login => "newbob", :password => "newpassword", :password_confirmation => "wrong" , :email => "newbob@mcbob.com"}
    assert_response 302
    assert(record.errors.invalid?(:password))

  def test_bad_signup
    #check we can't signup without all required fields
    post :signup, :user => { :login => "newbob", :password => "newpassword", :password_confirmation => "wrong" , :email => "newbob@mcbob.com"}
    assert_response 302
    assert(record.errors.invalid?(:password))

 def search_vendors         
            if params[:name] == 'Add New Vendor' # if they want to add vendor
                params[:vendor_id] = Vendor.new
                @vendors = Vendor.find(:all)
                render :partial => 'newvendorfrompo' 

##make a helper method out of something like this
case request.user_agent
when /(gecko|opera|konqueror|khtml|webkit)/i
   return :gecko
when /msie\s+7\.\d+/i

var map;
var centerLatitude = 40.6897;
var centerLongitude = -95.0446;
var startZoom = 3;

##book.rb
has_many :reviews, :dependent => :delete_all do 
    def overall_rating(record)
      to_a.sum(&record)
    end

>> p = Book.find(1)
=> #<Book id: 2, firstname: "Zach", lastname: "Wentz", approved: true, overall: nil, rating1: nil, rating2: nil, rating3: nil, rating4: nil, created_at: "2008-05-23 17:18:18", updated_at: "2008-05-24 14:16:30">
>> p.reviews
=> [#<Review id: 4, rating1: 1, rating2: 1, rating3: 1, rating4: 1, overall: 1, title: "This is my review", body: "Reviewing this mothahfuckah!", user_id: 1, book_id: 2, reccommend: nil, reported: nil, rating_count: 1, rating_total: 5, rating_avg: #<BigDecimal:b6f18c0c,'0.5E1',4(8)>, created_at: "2008-05-23 17:18:47", updated_at: "2008-05-23 22:27:09">, #<Review id: 5, rating1: 4, rating2: 4, rating3: 4, rating4: 4, overall: 4, title: "Nothing FooBAr", body: "Foobar", user_id: 2, book_id: 2, reccommend: nil, reported: nil, rating_count: 0, rating_total: 0, rating_avg: #<BigDecimal:b6f18590,'0.0',4(8)>, created_at: "2008-05-23 22:13:31", updated_at: "2008-05-23 22:13:31">]

## edit.html.erb
  <% form_tag url_for(:action => "update") do %>
     <p><label for="old_password" class="block">Old Password</label><br />
     <%= password_field_tag 'old_password', @old_password, :size => 45 %></p>