Sample ruby CouchDB libraries

couch_foo.rb

# CRUD

CouchFoo::Base.set_database(:host => "http://localhost:5984", :database => "krug")

class Address < CouchFoo::Base
  property :number, Integer
  property :street, String
  property :postcode
end
  
Address.create(:number => 3, :street => "My Street", :postcode => "secret")
#=> #<Address number: 3, street: "My Street", postcode: "\"secret\"",
# _id: "bfe83d00-3400-012d-aac3-003048b9798a", _rev: "1-55491479b64cb96a5d2e506d84ed0bc3", ruby_class: "Address">

Address.find_by_street("My Street")

# Widoki

class Document < CouchFoo::Base
  property :number, Integer
  property :street, String

  view :number_ordered, "function(doc) {emit([doc.number , doc.street], doc); }", nil, :descending => true
end

Document.number_ordered

# Realcje

class House < CouchFoo::Base
  has_many :windows
end

class Window < CouchFoo::Base
  property :house_id, String
  belongs_to :house
end

couch_potato.rb

# CRUD

CouchPotato::Config.database_name = "http://localhost:5984/krug"

class User
  include CouchPotato::Persistence

  property :name
end

user = User.new :name => 'joe'          
# => #<User _id: '', _rev: '', created_at: '', updated_at: '', name: 'joe'>
CouchPotato.database.save_document user

CouchPotato.database.load_document("<id>").class #=> CouchRest::Document

# Widoki

class User
  include CouchPotato::Persistence
  property :name

  view :all, :key => [:created_at, :name], :conditions => 'doc.completed === true'
end

CouchPotato.database.view User.all(:key => (Time.now- 10)..(Time.now), :descending => true)

couchrest.rb

# CRUD

class Line < CouchRestRails::Document
  use_database :krug

  property :no
  property :timetables, :cast_as => ['Timetable']  
  timestamps!
end

line = Line.new #=> {"couchrest-type"=>"Line"}
line.no         #=> nil
line['foo'] = "bar"
line.save       #=> true
line            #=> => {"couchrest-type"=>"Line", "updated_at"=>2010-04-26 19:47:22 +0200, 
                # "created_at"=>2010-04-26 19:47:22 +0200, "foo"=>"bar", "_id"=>"9e2cf863b2c23a8e7f8b8872b31e2606", 
                # "_rev"=>"1-72e75f5c3a551f5f15495d4e479b8752"}

Line.first
Line.get "9e2cf863b2c23a8e7f8b8872b31e2606"
Line.all

# Widoki

class Line < CouchRestRails::Document
  use_database :krug
  
  view_by :no,
    :map =>
      "function(doc){
        if (doc['couchrest-type'] == 'Line'){
          emit(doc.no, 1)
        }
      }"
end

Line.by_no :limit => 10

# Relacje

class Timetable < Hash
  include CouchRest::CastedModel
  attr_accessor :casted_by
  
  alias_method :line, :casted_by
end