Scott Motte codes a lot

sudo gem uninstall --a --ignore-dependencies merb.+

#example deploy.rb
 
set :runner, "username"
set :use_sudo, false
 
# =============================================================================
# CUSTOM OPTIONS
# =============================================================================
set :user, "username"
set :application, "example"
set :domain, "domain.com"
 
role :app, domain, :cron => true
role :web, domain
role :db,  domain, :primary => true
 
# =============================================================================
# DATABASE OPTIONS
# =============================================================================
set :rails_env,       "production"
 
# =============================================================================
# DEPLOY TO
# =============================================================================
 
set :deploy_to, "/home/#{user}/apps/#{application}"
 
# =============================================================================
# REPOSITORY
# =============================================================================
set :repository,  "ssh://username@REMOTE_SERVER:3444/home/username/git/#{application}.git" # If using a NON-STANDARD PORT instead of default 22. For git server.
set :scm, "git"
set :branch, "master"
 
# =============================================================================
# SSH OPTIONS
# =============================================================================
default_run_options[:pty] = true
ssh_options[:paranoid] = false
ssh_options[:keys] = %w(/Users/username/.ssh/id_rsa)
ssh_options[:port] = 3333 # If using a NON-STANDARD PORT instead of default 22. For deployment server.
 
 
# =============================================================================
# RAKE TASKS & OTHER SERVER TASKS
# =============================================================================
 
namespace :cron do
  task :start, :roles => :app, :only => {:cron => true} do
    cron_tab = "#{shared_path}/cron.tab"
    run "mkdir -p #{shared_path}/log/cron"
 
    require 'erb'
    template = File.read("config/cron.erb")
    file = ERB.new(template).result(binding)
    put file, cron_tab, :mode => 0644
 
    # merge with the current crontab
    # fails with an empty crontab, which is acceptable
    run "crontab -l >> #{cron_tab}" rescue nil
 
    # install the new crontab
    run "crontab #{cron_tab}"
  end
end
 
namespace :cron do
  task :stop, :roles => :app, :only => {:cron => true} do
    cron_tmp = "#{shared_path}/cron.old"
    cron_tab = "#{shared_path}/cron.tab"
 
    begin
      # dump the current cron entries
      run "crontab -l > #{cron_tmp}"
 
      # remove any lines that contain the application name
      run "awk '{if ($0 !~ /#{application}/) print $0}' " +
        "#{cron_tmp} > #{cron_tab}"
 
      # replace the cron entries
      run "crontab #{cron_tab}"
    rescue
      # fails with an empty crontab, which is acceptable
    end
 
    # clean up
    run "rm -rf #{cron_tmp}"
  end
end
 
desc 'Fix images from disappearing'
task :fix_images, :roles => :app do
  %w{images}.each do |share|
    run "rm -rf #{release_path}/public/#{share}"
    run "mkdir -p #{shared_path}/system/#{share}"
    run "ln -nfs #{shared_path}/system/#{share} #{release_path}/public/#{share}"
  end
end
 
desc "Create symlink to public_html/#{domain}/public"
task :symlinkify do
  run "rm -rf /home/#{user}/public_html/#{domain}/public; ln -s #{current_path}/public /home/#{user}/public_html/#{domain}"
end
 
desc "Reload Apache"
task :reload_apache do
  sudo "/etc/init.d/apache2 reload"
end
 
# Edit this accordingly.
after "deploy", "deploy:migrations"
after "deploy:migrations", "deploy:cleanup"
after "deploy:cleanup", "fix_images"
after "fix_images", "symlinkify"
after "symlinkify", "reload_apache"

dependencies "merb-more", "merb_helpers", "merb-assets", "dm-timestamps", "dm-validations", "chronic"

  class Post
  include DataMapper::Resource
 
  property :id, Integer, :serial => true # A :serial property is an auto-incrementing key
  property :date, Date
  property :title, :String
  property :description, String
  property :created_at, DateTime
  property :updated_at, DateTime
 
  # see http://datamapper.org/docs/validations.html though there must be a way to refactor this cleaner
  validates_with_method :must_be_chronic
  def must_be_chronic
    if Chronic.parse(self.date).nil?
      [false, "is not a valid date. Try removing any commas."]
    else
      return true
    end
  end
 
  before :valid?, :chronicfy
  def chronicfy 
    self.date = Chronic.parse(self.date)
  end
 
end

<h1>Posts controller, new action</h1>
 
<p>Edit this file in <tt>app/views/posts/new.html.erb</tt></p>
 
<%= form_for @post, :class => "post_form", :action => url(:posts) do %>
	<%= partial("posts/form") %>
<% end =%>
 
 
# here's the _form.rhtml partial
<%= error_messages_for @post %>
 
<p>
<%= text_field :date, :label => "Date<br />" %>
</p>
 
<p>
<%= text_field :title, :label => "Title<br />" %>
</p>
 
<p>
<%= text_field :description, :label => "Description<br />" %>
</p>