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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.
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 ...
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  ...
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 ...
Spotlight on Gems: attr_encrypted - Ruby - About.com
The attr_encrypted gem integrates with a number of ORMs, and should just work. In addition to ActiveRecord, the gem also purports to work with DataMapper ...
NameError: uninitialized constant Object::Something
Problem: You encounter an error reading NameError: uninitialized constant Something or NameError: uninitialized constant Object::Something (with various  ...
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, ...
Error Messages: Couldn't find without an ID - Ruby - About.com
Part 3: Implementing · Foundation Rails 2 by Eldon Alameda · Reddit Clone in Rails Part 2: Posts · Running the Test · A Quick Introduction to DataMapper ...
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 ...

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