4 posts tagged with “Ruby On Rails”

empty?, blank?, any?, exists? methods of Ruby on Rails ActiveRecord

April 17, 2016

Lets have a closer look at ActiveRecord empty?, blank?, any?, exists? methods to better understand what they do, their performance, and when they should be used.

BETWEEN SYMMETRIC operator in PostgreSQL

March 20, 2016

X BETWEEN SYMMETRIC Y AND Z is PostgreSQL operator that swaps Y and Z automatically if Y > Z to always use a nonempty range.

Book Review: “Growing Rails Applications in Practice”

August 15, 2014

A practical little book for Ruby On Rails devs of any experience helping to unlearn bad and adopt better practices.

Tools and Resources for PostgreSQL and Ruby On Rails.

August 10, 2014

Learn what gems are available to make it easier to work with hstore columns and how to use Postgress arrays and indexes more efficiently.

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