A demo app for Ohm, Pagination, Lunar using sinatra
Ruby
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README.markdown
app.rb

README.markdown

A Short Demo of Ohm + Pagination + Lunar formula

require 'rubygems'
require 'sinatra'
require 'ohm'
require 'lunar'
require 'pagination'
require 'haml'

helpers Pagination::Helpers

class Post < Ohm::Model
  attribute :body
  attribute :tags
  attribute :votes

  def create
    if super
      index 
      return true
    end
  end

protected
  def index
    Lunar.index Post do |i|
      i.id(id)
      i.text :body, body
      i.text :tags, tags

      i.sortable :votes, votes
    end
  end
end

get '/' do
  @posts = paginate Post.all, 
    :per_page => 10, :page => params[:page],
    :order => "DESC"
  
  haml :home
end

post '/post' do
  Post.create(:body => params[:body], :tags => params[:tags])
  redirect '/'
end

get '/search' do
  results = Lunar.search(Post, :q => params[:q], :tags => params[:tags])

  @posts = paginate results, :page => params[:page], :per_page => 10,
    :sort_by => :votes, :order => "DESC"

  haml :home
end

if Post.all.size == 0
  Post.create(:body => "The all new macbook pro 17inch", :tags => "apple macbook pro 17", :votes => 20)
  Post.create(:body => "apple iPad 3G", :tags => "apple ipad 3G tablet", :votes => 11)
  Post.create(:body => "apple iPad", :tags => "apple ipad tablet", :votes => 2)
  Post.create(:body => "apple iPhone 3GS", :tags => "apple iphone mobile", :votes => 5)
  Post.create(:body => "apple iPhone 3G", :tags => "apple iphone mobile", :votes => 10)
end

__END__
@@ home
%h1 All Posts (#{@posts.total})

%form(action='/search' method='get')
  %fieldset
    %legend Search Posts
    %label
      %span Keywords:
      %input(type='text' name='q')

    %label
      %span Tags:
      %input(type='text' name='tags')
      
    %button(type='submit') Go

%ul
  - @posts.each do |post|
    %li
      %p= post.body
      %p 
        Tagged: #{post.tags}
        |
        Votes: #{post.votes}

%form(action='/post' method='post')
  %fieldset
    %label(for='body')
      %span Body
      %br
      %textarea(name='body' cols=50 rows=5)
    
    %br

    %label(for='tags')
      %span Tags
      %br
      %input(type='text' name='tags')
    
  %fieldset
    %button(type='submit') Post!

= pagination @posts