When you have a hook in your Capistrano file that dumps your remote database, you might not want it to...
(Rails has a method ActiveRecord::Relation#merge that can merge ActiveRecord scopes. However, its behavior has never been clear, and...
In order to request a SSL certificate from any dealer, you usually need a CSR certificate. As both the CSR...
If you would like to enrich your website with semantic markup like contact data, places or events you should have...
If you want to enforce soft tabs (spaces instead of tabstops) in Vim put this into your ~/.vimrc (Linux) or...
Put the attached file into config/initializers/ to be able to say created_within on any ActiveRecord or its scope chain...
You probably already manage servers you often connect to inside the ~/.ssh/config file. What is nice: you may define alias...
When your cucumber features grow massively over time, the test execution can take a lot of time.
Soon after having written our shell-for script, we wanted to easily get dumps of our productions machines, too. This...
After having written useful scripts into makandra notes for a long time, we’ve now tied them into a powerful...
Asset pipeline, HTTP streaming, jQuery as default framework, auto-reversable migrations, identity map for ActiveRecord. Ruby 1.8.x support will...
Sometimes PDF cucumber tests fail at the first test run and succeed at the second run. You can fix this...
Install Ubuntu Server Download an image from this site Select File > New… to and follow the instructions, choose the .iso...
Validations that need to access an associated object may lead to some trouble. Let's exemplify that using this example...
Occasionally you need to do something directly on the server -- like having all records recalculate something that cannot be done...
You can seriously speed up deployments with Capistrano when using a local git repository on the server you are deploying...
Ruby comes with a class BigDecimal which you can use for arbitrary precision arithmetic. You should use BigDecimal instead of...
When storing floating-point numbers such as prices or totals in an SQL database, always use a DECIMAL column. Never...
When deploying an application with "cap deploy" by default [1] you only deploy your code but do not run migrations...
If you save a non-standard object (not a String or Fixnum, etc) like the AwesomeClass from your application in...
The Edge Rider gem will define a method collect_ids on your ActiveRecord models, scopes, integer scalars and collections, which...
ActiveRecord gives you the :include option to load records and their associations in a fixed number of queries. This is...
User.active.to_sql Rails 2 Use either the Edge Rider or fake_arel gem to get #to_sql backported...
Note: ActiveRecord::Base#becomes has a lot of quirks and inconsistent behavior. You probably want to use ActiveType.cast instead.