ruby

The Why and How of celluloid-io-pg-listener

LISTEN for Postgresql NOTIFY messages; Asynchronously process payloads celluloid-io-pg-listener (on github) Why? At Trumaker & Co we had a distributed data problem. Two data stores that needed to be kept synchronized, in real time, with inserts and updates allowed on both sides. There wasn’t a good solution available for that, so I did a lot of research and built celluloid-io-pg-listener to solve the problem. How? The data stores are both PostgreSQL databases living in different namespaces (i.

October 6, 2015 Read

Upgrade to El Capitan with Homebrew, Ruby, qt5, & Java

I upgraded to El Capitan, with Homebrew & Ruby, and this is how I did it flawlessly. … and Xcode and Java, etc. Prepare If you don’t already have homebrew installed, do that first, so you don’t have to deal with SIP issues. Install all Software Updates available in the Apple Menu, up to and including El Capitan. Hardware After the installs and forced reboots my 27" Thunderbolt display wouldn’t display anything.

September 30, 2015 Read

Fix The Nokogiri Warning

One of the most consistent warnings that has been with me through the years has been that Nokogiri was built against a version of libXML that is different than the version that is dynamically loaded. WARNING: Nokogiri was built against LibXML version 2.6.30, but has dynamically loaded 2.9.0 I had most recently, out of frustration, and due to sundry circumstances, resorted to the --use-system-libraries flag in my project’s bundler config just to get shit done.

September 3, 2015 Read

Introducing status_tag

Provides content_tag_for method signature to create customizable and logic-gated labels from objects. Also includes a presenter base class to allow any Ruby web framework to create logic around HTML tags. I’ll put something here soon.

August 24, 2015 Read

FLOSS Ruby Projects

I have been writing RubyGems since 2008, and Rails plugins since 2005. Contributions to the community Along the way I have contributed to many projects, including rails’ active-record (PR #20921), annotate_models (PR #473), hashie (PR #313, PR #314, PR #315, PR #316, and PR #318), git-reflow (PR #155, and PR #159), memoist (PR #33), month (PR #7), neography (PR #74 and PR #104), masonry-rails (PR #14), zues-parallel_tests (PR #28), rusen (PR #5, and PR #6), gem-release (PR #37 and PR #38), gem-dependent (PR #11), RubyGems Guides (PR #211), sidekiq-unique-jobs (PR #194), keep-a-changelog (PR #224), rchardet (PR #28), clearance (PR #769), wwtd (PR #48), capistrano-ssh-doctor (PR #11), google-drive-ruby (PR #282), subroutine (PR #4), clockwork (PR #14), ruby toolbox catalog (PR #12), amazon-awis (PR #2), and appraisal (PR #128).

August 15, 2015 Read

react-rails-benchmark_renderer

A reference implementation of a custom React renderer for Rails. Adds benchmarking info to Rails logs for parity with Rails view rendering benchmarking. I’ll put something here soon.

June 21, 2015 Read

Introducing each_in_batches

Performance Measured and Tuned Batch Processing of Records with Blocks in Rails. EachInBatches (Originally BolingForBatches) NOTE: I am resurrecting this code because I still have this recurring need, and Rail’s native batching doesn’t cut mustard. It is some of my most ancient code, and it isn’t pretty, but I hope to improve it over time. I often need to execute really large computations on really large data sets. I usually end up writing a rake task to do it, which calls methods in my models.

June 18, 2015 Read

Introducing destination_errors

Collect errors from multiple objects on a single object, especially useful with the Form Object Presenter Pattern. I’ll put something here soon.

April 8, 2015 Read

Introducing letter_group

Organize data results from raw sql queries (as with PGresult, or Dossier) intelligently. I’ll put something here soon.

April 8, 2015 Read

controller_validator

This Gem Is No Longer Maintained

November 20, 2014 Read

Maintaining flag_shih_tzu

Bit Fields for Active Record What is a bit field? https://en.wikipedia.org/wiki/Bit_field What is a bitwise operation? https://en.wikipedia.org/wiki/Bitwise_operation flag_shih_tzu supports both :bit_operator and :in_list query modes, but only :in_list can will utilize a database index. What does it look like? class Lead < ActiveRecord::Base include FlagShihTzu has_flags 1 => :warm_up_email_sent, 2 => :follow_up_call_made, 3 => :final_email_sent, 4 => :appointment_scheduled, 5 => :not_interested, # You can specify use any integer column to use for flags!

August 6, 2013 Read

Introducing gem_bench

Ruby Gemfile analysis. gem_bench is for static Gemfile and installed gem library source code analysis. gem_bench can also be used to trim down app load times by keeping your worst players on the bench. Gem: “Put me in coach!” You: ❨╯°□°❩╯︵┻━┻ Usage Works with Ruby >= 2.0 due to use of named parameters. Example! Getting tired of seeing this irb warning, perhaps? $ bundle exec rails console Loading staging environment (Rails M.

April 5, 2013 Read