"How many Rails devs does it take to query a database?" "n + 1" #BathRuby
A lot of the OCI has been donated by Docker to the Initiative, which is under the care of the Linux Foundation. #BathRuby
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Using `commit.verbose` in Git lets you see the diff while you write the commit message. Makes it easier to write good, descriptive commit messages!
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Hoping that my laptop
lasts until I get an opportunity to charge it after the lightning talks... 3%! #BathRubyShow this thread -
Having "unstable" CI testing that runs tests against latest versions of all dependencies helps keep things up-to-date and forward-compatible. I've never heard of this before, but what a great idea!
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The talk is about a graph relational mapper whose name I didn't catch :(
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A graph database is a network of interconnected objects. Instead of asking for data you "sort of massage it".
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Having a graph database lets PDS deal with having 800 years worth of data that gets less complete the further back you go.
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They created a library called GROM, an ActiveRecord alternative for graph databases.
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And that's the last lightning talk for now! I can charge!
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The next talk is Esoteric, Obfuscated, Artistic Programming in Ruby by Yusuke Endoh.
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Cookpad, his employer, now employs two engineers (including him) to work on Ruby full time!
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First trick! "Ruby with limited letters" We're shown a string of characters that looks utterly incomprehensible, but is executable. Next we get a Ruby program composed entirely of numbers.
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(This talk is tricky to livetweet because it's heavy on code examples)
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`ObjectSpace.each_object` - "Ruby's black magic". Lets you iterate over every live object in your program.
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"This is a hello world written only using underscores and spaces" O_O
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"Again, this is not limited to hello world. You can do this with any program!"
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"We can write Ruby programs using only a keypad! Or only two keys!"
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“I call this a self-descriptive FizzBuzz” The program outputs a Ruby program formatted as a FizzBuzz number/word in ASCII art. The outputted program outputs the next item in the sequence and so on.
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It’s very easy to produce executable ASCII art in Ruby because of its very versatile syntax
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(My laptop is now dead, so I’m livetweeting from my phone now. I won’t be able to keep up quite as well, I’m afraid.)
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Shift-left testing: encourage developers to do testing as early as possible.