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Hi! I'm Avdi Grimm, and this is my software development blog. More...
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Objects on Rails
A developer notebook on applying classic Object-Oriented principles to Ruby on Rails projects.
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Tag Archives: datamapper
RubyTapas Freebie: Gem Love Part 2
I have a few ongoing miniseries in RubyTapas. In this, the second installment of a miniseries chronicling the creation of a Rubygems plugin and an associated server, I touch on a number of topics including acceptance testing, the shellwords standard … Continue reading
Posted in Ruby, RubyTapas Samples, Screencasts
Tagged bdd, datamapper, rspec, tdd, testing
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Fowler on Rails
Projects using Ruby on Rails often lack strong distinctions in two main areas: The model/record conflation: Seeing “models” as strictly DB-backed resources. The view/template conflation: failing to draw a line between view objects and HTML templates. The conflations are encouraged … Continue reading
Posted in Ruby
Tagged activerecord, datamapper, Martin Fowler, patterns, Ruby on Rails, templates, two step view
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Hello, Red Dirt Ruby!
I’m really enjoying Red Dirt Ruby Conference so far! Love the single-track, short-talks format. Also, I got free jerky from Jerky.com, which is awesome. If you’re coming in because of my DataMapper talk, here are some notes: Slides: http://avdi.org/talks/datamapper-rdrc-2011/ Rate the … Continue reading
Linkdump #6
agile/db_branch – GitHub I’d been looking for a way to manage databases for multiple branches of an app, and this is one of the (many) suggestions. tags: development database ruby rails git Rails plugin to play nice with git branching … Continue reading
Posted in Links
Tagged c++, c++0x, clojure, data structures, datamapper, javascript, links, memoization, parsing, rails, ruby, Ruby on Rails
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The happy developer
The programmer has a fixed amount of time and concentration that he can give every day. He must give a bigger piece of the pie to the bad technologies, simply because they require more. In other words, he ends up spending most … Continue reading
ActiveRecord Golf
So I was messing around with some scratchpad code today, investigating the use of with_exclusive_scope, and here’s what I had to write to come up with a minimal working ActiveRecord model: require ‘rubygems’ require ‘active_record’ ActiveRecord::Base.establish_connection( :adapter => “sqlite3″, :database … Continue reading
Looking for a new NullDB maintainer
I love Open Source. NullDB, a weekend hack that I barely touched after its first version, continues to attract periodic forks and patches. For a long time I’ve been meaning to sit down and roll in all the contributions that … Continue reading
Posted in Uncategorized
Tagged activerecord, datamapper, floss, nulldb, oss, ruby, testing
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The State of SimpleDB Clones
Over the past couple weeks I’ve been updating the DataMapper SimpleDB adapter for DataMapper 0.10, an effort which yesterday culminated in the release of version 1.0.0. Testing against Amazon SimpleDB can be an excruciatingly slow process – not only can … Continue reading
NullDB for DataMapper
The first Ruby library I ever released, and still the one I get the most emails about, is NullDB. NullDB is an ActiveRecord database adapter which simply turns every database operation into a no-op. It is useful for speeding up … Continue reading
