ismailmechbal

AllCops:
  RunRailsCops: true

# Commonly used screens these days easily fit more than 80 characters.
Metrics/LineLength:
  Max: 120

# Too short methods lead to extraction of single-use methods, which can make
# the code easier to read (by naming things), but can also clutter the class
Metrics/MethodLength: 

ismailmechbal

module Ahoy
  class AhoyBase < ActiveRecord::Base
    establish_connection DB_STATS
      self.abstract_class = true
    end
end

ismailmechbal

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

ismailmechbal

#This is a really simple script:
##Grab the list of members of a Facebook group (no paging as yet...)
#Lets you do things like http://blog.ouseful.info/2012/12/05/emergent-social-interest-mapping-red-bull-racing-facebook-group/
###For each member, try to grab their Likes

#USAGE
#> python fbLinksGrabber.py -group GROUPID -typ THING -FBTOKEN ETC
#THING is one of groups, likes, books etc

ismailmechbal

// PhantomJS Cheatsheet

$ brew update && brew install phantomjs  // install PhantomJS with brew

phantom.exit();

var page = require('webpage').create();

page.open('http://example.com', function() {});
page.evaluate(function() { return document.title; });

ismailmechbal

class Book < Airrecord::Table
  class Endorser < Airrecord::Table
    self.base_key = ""
    self.table_name = "Endorser"
  end

  self.base_key = ""
  self.table_name = "Books"

  has_many :endorsements, class: 'Book::Endorser', column: 'Endorsements'

ismailmechbal

http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query
http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails

#payload: [{"kind"=>"person"}]
Segment.where("payload @> ?", [{kind: "person"}].to_json)

#data: {"interest"=>["music", "movies", "programming"]}
Segment.where("data @> ?",  {"interest": ["music", "movies", "programming"]}.to_json)
Segment.where("data #>> '{interest, 1}' = 'movies' ")
Segment.where("jsonb_array_length(data->'interest') > 1")

ismailmechbal

Rails 5.2 with webpacker, bootstrap, stimulus starter

This gist will collects all issues we solved with Rails 5.2 and Webpacker

Create Project

# Last few parameters(--skip-* part) is only my habbit not actully required
$ rails new <project_name> --webpack=stimulus --database=postgresql --skip-coffee --skip-test

ismailmechbal

{
  "blekinge": [
    "Blekinge",
    {
      "name": "Karlshamn",
      "slug": "karlshamn"
    },
    {
      "name": "Karlskrona",
      "slug": "karlskrona"

ismailmechbal

# assuming Model is your model and options is a json/jsonb column.
# This uses the Postgres json append || operator.
# And wraps the option inside an array.
# producing [{},{}] multiple hashes inside a top level json array.

# It is very important that the hash is [{}] NOT {} as not having the array on the 
# outside will cause the hash to replace the contents instead of appending to them.

new_option = [{
  name: option_name,