Don’t Use Objects as Hash Keys in Ruby* | Daniel P. Clark
Don’t Use Objects as Hash Keys in Ruby* Hashes have been optimized for symbols and strings in Ruby which technically are objects but this article is for revealing how much of a difference this makes when using other objects as hash keys. There are some cases where this makes a big difference but many times you won’t notice much of a difference. I wrote a little experiment to see how different kin
Minitest with Watir-webdriver | Daniel P. Clark
Minitest with Watir-webdriver Why, you might ask, would I even think of Watir-webdriver? Well let me tell you. It’s because it’s easy and fun. It’s not a fast way to run tests though. What Watir will do for you is open an actual web browser window and let you check and interact with it from your Ruby code. The thing I love about Watir is that it’s pretty intuitive by design. You initialize yo
Elixir Envy ᐅ Ruby | Daniel P. Clark
Elixir Envy ᐅ Ruby When a Rubyist learns about Elixir’s pipe operator and how it behaves similarly to Linux/Unix command line piping he, or she, very likely envies that feature and wishes to have it in Ruby. How can I say that or how could I know that? Well it’s a reasonable deduction when I see others, as well as myself implementing this behavior in Ruby as a gem. Surprisingly just one implemen
Rails: Has One Through Polymorphic Relation | Daniel P. Clark
Rails: Has One Through Polymorphic Relation As I’ve described in my blog post “Rails Polymorphic Associations” I’ve stated that polymorphic relations in Rails are best for scenarios where a model may “belong to” one of many other kinds of model. So a Comment model with the polymorphic commentable relationship can belong to any other record in your Rails app. This is a child to be adopted by any
101 Ruby Code Factoids | Daniel P. Clark
101 Ruby Code Factoids 0) ‘methods’ method Since almost everything in Ruby is an Object you can type dot methods on it to see what methods are available. 4.methods - Object.methods # => [:-@, :+, :-, :*, :/, :div, :%, :modulo, :divmod, :fdiv, :**, :abs, :magnitude, :~, :&, :|, :^, :[], :<<, :>>, :to_f, :size, :bit_length, :zero?, :odd?, :even?, :succ, :integer?, :upto, :downto, :times, :next, :pre
Switching From Unicorn to Puma on Heroku is Easy! | Daniel P. Clark
Switching From Unicorn to Puma on Heroku is Easy! I’ve had my project running on Heroku with Unicorn for some time now. Not that long ago Heroku put out a notice advising people to switch over to Puma as Unicorn doesn’t do well with low latency connections. And you know that with the internet you’re always going to have people with slow connections accessing your service. Also upon looking into
When to use Ampersand and/or Colon with Proc, Map, and Inject | Daniel P. Clark
When to use Ampersand and/or Colon with Proc, Map, and Inject So with Ruby permitting Procs called on Objects I’ve found sometimes a Colon Method will work, and sometimes you need a Ampersand Colon Method. For example, when I map &:upcase on a list of strings it works. ["a","b","c"].map(&:upcase) # = > ["A", "B", "C"] But if I try without the Ampersand I get: ["a","b","c"].map(:upcase) # Argument
Refinements over Monkey-patching | Daniel P. Clark
Refinements over Monkey-patching Monkey patching is rather straight forward. You take an existing object and you apply your own duct tape, glue, nuts and bolts, or even chewing gum. Or if it’s bad you hit it with a hammer. No, but more seriously, it’s when you modify something existing from outside it’s original project code. For example you can add a method to the String Object by monkey patch
Writing methods for both class and instance levels | Daniel P. Clark
Writing methods for both class and instance levels When perusing the Rails documentation for various methods I noticed something that seemed odd to me. The method descriptions seemed to show an extra parameter as the first parameter that I was never using. It’s strange when you use the methods all the time and it doesn’t seem to be implemented the way the documentation describes it. So what’s g
Configuration With a Singleton Instance | Daniel P. Clark
Configuration With a Singleton Instance I was considering how I might want to further implement my gem and incorporate configuration settings for it. I wanted only one instance of my configuration and it needed to be part of my module. So I’ve come up with a solution I like that allows me to do this and even have a true “sense” of untouchable constants. I’ve found OpenStruct to be for my liking
Fake a SMTP Server with Python for Rails Testing | Daniel P. Clark
Fake a SMTP Server with Python for Rails Testing So I’ve been in the process of writing an integration test to verify the flow of registration through some unique conditions. One thing I ran into while writing my Rails test was this error. Connection refused – connect(2) for nil port 25 After looking around at documentation on what to do for testing it seemed that everything was as it should be e
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
