Posts about rails

Commonly used (and abused) Ruby Gems

02 November 2017

Following up on my last post about Ruby gems, here's a list of some of my typical choices for various tasks in the Ruby and Ruby on Rails world:

active_model_serializers
Makes it real easy to define exactly how to serialize models in an API

annotate
Annotates Rails/ActiveRecord Models, routes, fixtures, and others based on the database schema. Very cool to know exactly which fields are present in your models, without having to look it up in the schema.rb file.

awesome_prin...

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Problem starting Sidekiq in development

26 May 2015

If you ever get this error:

can't link outside actor context

Followed by something like:

    /Library/Ruby/Gems/2.0.0/gems/celluloid-0.16.0/lib/celluloid.rb:176:in `new_link'
    /Library/Ruby/Gems/2.0.0/gems/sidekiq-3.3.4/lib/sidekiq/launcher.rb:21:in `initialize'
    /Library/Ruby/Gems/2.0.0/gems/sidekiq-3.3.4/lib/sidekiq/cli.rb:81:in `new'
    /Library/Ruby/Gems/2.0.0/gems/sidekiq-3.3.4/lib/sidekiq/cli.rb:81:in `run'
    /Library/Ruby/Gems/2.0.0/gems/sidekiq-3.3.4/bin/sidekiq:8:in `'
    /Lib...
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Date and time in ruby

24 January 2015

Time.now will give you the current date (and time), like so:

Time.now 2012-11-22 22:35:01 +0000

You can also request all the date parts individually:

Time.now.hour 22 Time.now.min 35 Time.now.sec 01 Time.now.day 22 Time.now.month 11 Time.now.year 2012

Cool (and easy), right? If you want to change a date, you can add seconds to it:

t = Time.now 2012-11-22 22:35:01 +0000 t2 = t + 10 # 10 Seconds 2012-11-22 22:35:11 +0000 t3 = t + 10*60 # 10 minutes 2012-11-22 22:45:01 +0000 t4 = t ...

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