Bringing Encrypted Attributes to Active Record Models— The folks at Basecamp are extracting how they encrypt attributes for their ‘HEY’ email app in this pull request to Rails core. There’s also support for deterministic encryption and queryable encrypted values. Lockbox is a pre-existing approach, too, if you need something right now. Ruby on Rails |
![]() The Easiest Way to Monitor Ruby: Automatic Instrumentation— Monitoring your Ruby apps can be hard. You need to understand what you need to monitor, instrument code, and then make sense of all the data. Automatic instrumentation makes that whole process easier and streamlined. Find out how you can do it. AppSignal sponsor |
Spree 4.2.0 Released with Rails 6.1 and Ruby 3.0 Support— Spree, a modular open source e-commerce system, is one of the longest standing Rails projects out there and it’s had a slew of updates including a new, responsive admin UI, expanded and improved i18n support, and better multi-store support. Spree Commerce |
Senior Ruby Engineer— Join a small team and help build out our automated direct mail platform, used by high growth startups to help optimize their marketing campaigns. Poplar |
Find Your Next Job Through Hired— Create a profile on Hired to connect with hiring managers at growing startups and Fortune 500 companies. It's free for job-seekers. Hired |
Boring Breadcrumbs for Rails— Rather than use a library to implement this common Web UI pattern (although there are links to several, if you prefer) you can roll your own breadcrumbs system pretty easily, says Matt. Matt Swanson |
Logging in Ruby with Logger and Lograge— Various options and approaches to logging including customizing format (a la JSON) along with what actually gets written to the logs. Diogo Souza (Honeybadger) |
Complete Peace of Mind Rails Hosting— If you need 100% peace of mind Rails hosting, OpsCare is for you. We keep your application online and performing, 24 hours a day, 7 days a week. OpsCare by reinteractive sponsor |
Nested Forms in Rails— If you ever have to use nested forms, this kind of reference can save you hours of frustration. OmbuLabs |
yr_weather: Downloads and Parses YR.no Weather Forecasts— A reader sent this in as an example of scripting a weather forecast system fueled by data from Norway’s state broadcasting weather authority (but it covers the whole world and seems to be quite permissive as a public API). sasa-solutions |
💡 Tip of the Week Triple Equals (===) Have you ever wondered what is happening behind the scenes of a case statement in Ruby? We can write cases that look like this: |
case input
when "exact match"
"Found an exact match"
when /regex match/
"Found a regex match"
when String
"Input is a string"
when (1...10)
"Input falls within this range"
end
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Although this example doesn't actually do anything useful, it does illustrate something interesting: Ruby's case statements allow for a whole host of different types in their when clauses. In this example alone, we have a String, Regexp, Class and a Range. This is all because case statements in Ruby compare using ===. Well, this begs the question, what exactly is a === comparison? === is most straightforward when thought of as a membership comparison. It is checking if the argument on the right of the === is a member of the argument on the left. Here are some concrete examples based on the above: |
# "exact match" is a member of "exact match"
"exact match" === "exact match"
=> true
# "string which regex matches" is a member of the
# set of matches described by /regex match/
/regex match/ === "string which regex matches"
=> true
# "another string" is a member of the String class
String === "another string"
=> true
# 1 is a member of the range (1...10)
(1...10) === 1
=> true
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Now we more deeply understand what case statements are using. To read more details on the === in any specific class, take a look at the docs for that class. For instance, the === docs for String are here. This week’s tip was written by Jemma Issroff. |
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