blocknotes

def if(check, do:, else: nil)
  result = check ? :do : :else
  value = binding.local_variable_get(result)
  value.is_a?(Proc) ? value.call : value
end

## Without block execution:
# def if(check, do:, else: nil)
#   binding.local_variable_get(check ? :do : :else)
# end

blocknotes

class Player
  def initialize(name)
    puts "-1- self.name object_id => #{self.name.object_id}\n\n"

    puts '[initialize] self.name = name'
    self.name = name
    puts "-2- @name object_id => #{@name.object_id}, self.name object_id => #{self.name.object_id}\n\n"

    puts '[initialize] @name = name'
    @name = name

blocknotes

# db/migrate/20220909010101_create_price_lists.rb

class CreatePriceLists < ActiveRecord::Migration[7.0]
  def change
    create_table :price_lists do |t|
      t.string :name, null: false
      t.integer :version, null: false, default: 1
      t.references :source_price_list
      t.jsonb :price_items_changes

blocknotes

# Creates sample methods to fetch single records - it can be useful for debugging, to skip some typing :)
#
# @param mode [Symbol] Load the first|last|random records
# @param models [Array] Models to fetch from
#
# @return [Array] the available sample methods
def load_samples(mode: :first, models: [Model1, Model2, Model3])
  puts "> load_samples options => mode: :#{mode} (first|last|random)"
  log_level = Rails.logger.level
  Rails.logger.level = :warn

blocknotes

• Setup the Rails project with ActiveAdmin using Webpacker: rails g active_admin:install --use_webpacker
• Setup Trix editor for ActiveAdmin:
  • Execute: bin/rails action_text:install
  • Add Javascript library to app/javascript/packs/active_admin.js:

require("trix")
require("@rails/actiontext")

• Add style library to app/javascript/stylesheets/active_admin.scss:

blocknotes

def flatten_obj(obj, keys = [], values = {})
  if obj.is_a?(Array)
    obj.each_with_index do |value, index|
      temp_keys = keys + [index]
      if value.is_a?(Array) || value.is_a?(Hash)
        flatten_obj(value, temp_keys, values)
      else
        values[temp_keys.join('.')] = value
      end
    end

blocknotes

# Search SEARCH_WORD in all ruby files of a project (gems included) - using ag - The Silver Searcher
ag SEARCH_WORD --ruby `bundle list --paths | grep '^/'`

# Search SEARCH_WORD in all javascript files of a project (gems included)
ag SEARCH_WORD --js `bundle list --paths | grep '^/'`

# ---

# Old version
ag SEARCH_WORD --ruby `bundle show --paths | grep '^/'`

blocknotes

# All specs in the diff commits from develop (useful to check a specific branch):
git diff-tree --no-commit-id --name-only -r develop..HEAD | grep '_spec\.rb' | sort | uniq > /tmp/specs

# All specs in a specific range of commits:
git diff-tree --no-commit-id --name-only -r HEAD~3..HEAD | grep '_spec\.rb' | sort | uniq > /tmp/specs

# Execute them:
while read p; do; if [ -f "$p" ]; then; be rspec "$p" || break; fi; done </tmp/specs

blocknotes

• To ignore ActiveAdmin exceptions while migrating: update routes.rb: ActiveAdmin.routes(self) rescue ActiveAdmin::DatabaseHitDuringLoad

blocknotes

# Look for a specific string (optionally filtering files with a pattern) of my projects

require 'git'
require 'pathname'

BASE_PATH='/projects'
search='class_eval'
filter_files='*.rb' # Empty for every file

Pathname.new( BASE_PATH ).children.each do |path|