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Arel Cheatsheet on Steroids

A (more) complete cheatsheet for Arel, including NamedFunction functions, raw SQL and window functions.

Tables

posts = Arel::Table.new(:posts)
posts = Post.arel_table # ActiveRecord

Table alias

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PostgreSQL is Enough

• Simplify: move code into database functions
• Just Use Postgres for Everything
• Just use Postgres
• PostgreSQL is the worlds’ best database
• Postgres is eating the database world
• Hacker News discussion

Background and Cron Jobs

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! Hybrid Terminal Colours. Uses the palette from Tomorrow-Night:
! https://github.com/chriskempson/tomorrow-theme/blob/master/vim/colors/Tomorrow-Night.vim
! vim: ft=xdefaults

*background: #1D1F21
*foreground: #C5C8C6
! black
*color0: #282A2E
*color8: #373B41
! red