Christian Rolle
German version
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Blog
Google blog
Apr 1, 2018
Rails - Easter Eggstravaganza
Ruby on Rails
ActiveRecord
Fun
Mar 25, 2018
URL maintenance
Routing
Ruby on Rails
Slug
Jun 11, 2017
Maintaining legacy routes
Ruby on Rails
Slug
Routing
May 21, 2017
5 Rails console tricks
Ruby on Rails
Basics
Apr 30, 2017
The perfect Slug - URL
Ruby on Rails
ActiveRecord
Slug
Apr 9, 2017
Testing custom validator
Ruby on Rails
Validation
Testing
Apr 1, 2017
Custom validator class
Ruby on Rails
ActiveModel
Validation
Mar 26, 2017
Benchmark: preload vs. eager_load
Ruby on Rails
ActiveRecord
Benchmark
Mar 18, 2017
Eager loading: preload vs. eager_load
Ruby on Rails
ActiveRecord
SQL
Feb 18, 2017
Finding records without associations
Ruby on Rails
ARel
ActiveRecord
Feb 5, 2017
Boolean attribute validation
ActiveRecord
Validation
Ruby on Rails
Jan 29, 2017
Modularized has_many proxy extension
Ruby on Rails
ActiveRecord
Association
Jan 15, 2017
Extending has_many association proxy
Ruby on Rails
ActiveRecord
Association
Dec 17, 2016
Migration to PostgreSQL on Rails
Ruby on Rails
PostgreSQL
Dec 11, 2016
Simple form object
Ruby on Rails
Form Object
Pattern
Nov 26, 2016
ActiveRecord stringification
Ruby on Rails
ActiveRecord
Delegator
Nov 19, 2016
Different time transitions
Ruby on Rails
ActiveSupport
Time
Aug 21, 2016
The Nil object pattern
Ruby on Rails
Refactoring
Pattern
Jul 23, 2016
Decoupled ActiveRecord scopes by merging
Ruby on Rails
ActiveRecord
Refactoring
Jun 5, 2016
Bundling boolean attributes with enum in Rails
Boolean
Ruby on Rails
ActiveRecord
Apr 28, 2016
A Presenter Implementation
Ruby on Rails
Presenter
Pattern
Apr 10, 2016
Set HTTP Strict Transport Security
Ruby on Rails
HTTPS
HSTS
Mar 20, 2016
Migration path from HABTM to has_many :through
Ruby on Rails
ActiveRecord
Association
Feb 28, 2016
Meaningful boolean method parameter
Ruby on Rails
ActionView
Boolean
Feb 21, 2016
ActiveRecord callback tests with RSpec
RSpec
Ruby on Rails
ActiveRecord
Feb 14, 2016
A Decorator implementation
Ruby on Rails
Decorator
Pattern
Jan 31, 2016
Aliasing the Rails way
Ruby on Rails
Jan 3, 2016
Rendering collections
Ruby on Rails
ActionView
Nov 15, 2015
Rails on HTTPS
Ruby on Rails
HTTPS
SSL
Oct 3, 2015
Hash values identified by non Strings/ Symbols
Ruby
Ruby on Rails
Jul 18, 2015
Iterators: inject and reduce
Ruby
Ruby on Rails