Service objects and/or after_commit callbacks are ubiquitous in most real-world Rails applications. Whether it’s a good idea or not (ActiveRecord callbacks - I’m looking at you) is a different story, but one thing tha... Read on →
Imagine that you are working on a large legacy application that also contains the dreaded ActiveRecord callbacks in the models handling most of the business logic. At some point, and under a certain level complexity, ... Read on →
Ruby has quite a lot of “exotic” features that are not used that often, but when you need to utilize some metaprogramming magic, you can easily take advantage of them. One of such features is Object.instance_exec whic... Read on →
Recently, I’ve had quite a popular problem to solve: count the occurences of the given item in a collection. There are few ways to solve this problem - starting from using Enumerable#inject or Enumerable#each_with_obj... Read on →
One very useful feature of ActiveRecord is automatically defining attribute readers and writers for all the columns for given tables. For the ones with boolean type, however, there is one more addition - defining an a... Read on →