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Articles related to datamapper

A Quick Introduction to DataMapper - Ruby - About.com
DataMapper is a "Object/Relational Mapper" or ORM. In other words, it maps Ruby objects to database records that makes with objects from a database a snap.
http://ruby.about.com/od/sinatra/a/datamapper.htm
Creating Database-driven Apps with Sinatra - Ruby - About.com
Having read the previous article on DataMapper, this portion of the code should be nothing new. Note that no key is explicitly defined. Instead, the key is the id ...
http://ruby.about.com/od/sinatra/a/sinatra7.htm
The Complete Code - Ruby - About.com
usr/bin/env ruby require 'rubygems' require 'sinatra' require 'haml' require 'dm- core' DataMapper.setup( :default, "sqlite3://#{Dir.pwd}/rolodex.db" ) # Define the ...
http://ruby.about.com/od/sinatra/a/sinatra8_2.htm
NameError: uninitialized constant Object::Something
Solution: You've most likely referred to a class or module that doesn't exist. Most likely, you've forgotten to require a gem or library needed for the code to work, ...
http://ruby.about.com/od/faqs/qt/Nameerror-Uninitialized-Constant-Object-Something.htm
Review: Cloning Internet Applications with Ruby - About.com
From the title, one might assume it's a Ruby on Rails book, but instead is uses Sinatra and Datamapper. Cloning Internet Applications with Ruby picks a number  ...
http://ruby.about.com/od/bookreviews/gr/Cloning-Internet-Applications-With-Ruby.htm
What is ActiveRecord? - Ruby - About.com
DataMapper, for example, is a simpler ORM that's relatively popular. Depending on your application, you may choose this, an even smaller one, or even a ...
http://ruby.about.com/od/rubyonrails/ss/What-Is-Activerecord.htm
What is Padrino? - Ruby - About.com
For example, it provides interfaces and generators for ORM libraries (like ActiveRecord and Datamapper), renderers like Haml and ERB, testing frameworks, ...
http://ruby.about.com/od/padrino/a/1.htm
Generating a Rails Project - Ruby - About.com
Related Articles. A New Rails Project · Step 1: Scaffolding Posts · Generating Padrino Projects · A Quick Introduction to DataMapper ...
http://ruby.about.com/od/rubyonrails/ss/railsblog1_3.htm
Special Projects to do in Ruby - About.com
... Shotgun with Sinatra · Using Sinatra to Provide a Web Interface for a Gem · A Quick Introduction to DataMapper · Creating Database-driven Apps with Sinatra ...
http://ruby.about.com/od/tasks/u/SpecialProjects.htm

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