empty?, blank?, any?, exists? methods of Ruby on Rails ActiveRecord
April 17, 2016Lets 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.
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.
X BETWEEN SYMMETRIC Y AND Z is PostgreSQL operator that swaps Y and Z automatically if Y > Z to always use a nonempty range.
A practical little book for Ruby On Rails devs of any experience helping to unlearn bad and adopt better practices.
Learn what gems are available to make it easier to work with hstore columns and how to use Postgress arrays and indexes more efficiently.