MaherSaif

# Builds an SQL insert query for a given record
#
# @param record [ActiveRecord::Base] Record used to build the SQL insert query
# @return [String] SQL insert query
def build_insert_query(record)
  columns = record.class.columns.reject { |col| col.name == record.class.primary_key }
  values = columns.map { |col| record[col.name] }
  insert_manager = Arel::InsertManager.new
  insert_manager.into(record.class.arel_table)
  insert_manager.insert(columns.zip(values)).to_sql

MaherSaif

# Make sure to have prepared statements enabled.
# config/database.yml
# test:
#  database: ...
#  prepared_statements: true

# Add this to the top scope of test/test_helper.rb or spec/rails_helper.rb and
# run tests as usual.

queries = Hash.new(0)

MaherSaif

# syntax = docker/dockerfile:1

# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
ARG RUBY_VERSION=3.2.2
FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base

# Rails app lives here
WORKDIR /rails

# Set production environment

MaherSaif

# To display flash messages inside XHR responses,
# place this file in app/controllers/concerns/
# then include it in ApplicationController

module RenderFlashNowForXhr
  extend ActiveSupport::Concern

  private

  # Flash messages are not directly available for XHR requests

MaherSaif

  def active_link_to(name = nil, options = nil, **html_options, &block)
    options = block_given? ? name : options

    if current_page?(options)
      html_options[:class] = class_names(html_options[:class], :active)
      html_options[:aria] = html_options.fetch(:aria, {}).merge(current: :page)
    end

    if block_given?
      link_to options, html_options, &block

MaherSaif

# config/environments/test.rb

ActiveSupport.on_load(:active_record_postgresqladapter) do
  # For this optimization to work, you need to recreate your test database
  self.create_unlogged_tables = true
end

MaherSaif

# Use this validator like this
#
# class User < ApplicationRecord 
#   validates :profile_link, url: true
# end 

class UrlValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    unless valid_url?(value)
      record.errors.add(attribute, :invalid_url)

MaherSaif

#!/bin/bash

### ABOUT
### Runs rsync, retrying on errors up to a maximum number of tries.
### Simply edit the rsync line in the script to whatever parameters you need.

# Trap interrupts and exit instead of continuing the loop
trap "echo Exited!; exit;" SIGINT SIGTERM

MAX_RETRIES=50

MaherSaif

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

MaherSaif

<?php
/**
 * Twitter timeline backup
 *
 * Required:
 *   - PHP 8.1+
 *       - cURL extension enabled
 *       - Windows:
 *           - download https://windows.php.net/downloads/releases/php-8.1.12-Win32-vs16-x64.zip (or a newer available version)
 *           - unzip to a folder of your choice