saiqulhaq

2 months ago I got "Docker for Rails Developer" book. It's easy to follow step by step for beginner.

However I haven't try it for production purpose, because my projects are not ready yet to use Docker for production. There will many changes on assets, database, and caching system. So I use it for development environment only till now.

After few days learning this Docker thing, I found great gem to build Dockerfile and docker-compose.yml files rails. The gem is dockrails, it uses unison to sync your files.

If I could give a recommendation for you, I would recommend you to read "Docker for Rails Developer" book first, try to use it on new rails app, then use dockrails, so it will be easy when you struggle when setting up the env.

Following is my cheatsheet, maybe it would useful for you :)

saiqulhaq

Your App might have this issue if you use multithreading server. It's not a bug Rails, but on your app if you don't put before_filter to all controllers. Open this Pull Request for the details rails/rails#34356, rails/rails#34043, and ruby-i18n/i18n#381.

To prevent this issue, change how the way you set I18n.locale = locale code to be in around_filter block, not before_filter.

around_filter :switch_locale

def switch_locale(&action)
  locale = params[:locale] || I18n.default_locale
 I18n.with_locale(locale, &action)

saiqulhaq

If you read this post, I bet you are getting issue with autoload feature on rails that raises an error on your code and you don't know when or who is triggering the autoload. So, to fix this, just put

puts caller

on your ruby file to check why your ruby file is being autoloaded.

saiqulhaq

Make it real

Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discuss around concrete examples, not hand-waving abstractions. Don't say you did something, provide a URL that proves it.

Ship it

Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.

Do it with style

saiqulhaq

### General List of Reserved Words
### Stuart P. Bentley <[email protected]>, June 4, 2013

## This is a general list of words you may want to consider reserving,
## in a system where users can pick any name, in a context where the
## system may use names as well. One prominent example of a system
## where this is the case would be a site that serves pages for users,
## at their username, from the site root, like
## http://twitter.com/stuartpb . In this system, you would want to
## reserve some routes for pages that would commonly be expected to

saiqulhaq

set nocompatible              " be iMproved
filetype off                  " required!

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()

" let Vundle manage Vundle
" required!
Plugin 'VundleVim/Vundle.vim'

saiqulhaq

/*jshint bitwise: false*/

// please take a look at line numbers 80-85, and 172-177
(function(global, document, undefined) {
  'use strict';

  longPoller = function(poll,data){
    var gotData = false;
    var aborted = false;
    lastAjax = new Date();

saiqulhaq

require 'active_record'
require 'bcrypt'

class User < ActiveRecord::Base
  PASSWORD_SALT = '$2a$20$ESQ40HbYj00QFse2rbArOe'.freeze
  PASSWORD_COST = 15.freeze

  establish_connection adapter: 'sqlite3', database: ':memory:'
  connection.create_table table_name, force: true do |t|
    t.string :email

saiqulhaq

# This is a skeleton for testing models including examples of validations, callbacks,
# scopes, instance & class methods, associations, and more.
# Pick and choose what you want, as all models don't NEED to be tested at this depth.
#
# I'm always eager to hear new tips & suggestions as I'm still new to testing,
# so if you have any, please share!
#
# @kyletcarlson
#
# This skeleton also assumes you're using the following gems: 

saiqulhaq

// Usage
// font awesome
// icon_link_to("Dashboard", internal_path, fa: :dashboard, class: "btn btn-primary") 
// bootstrap
// icon_link_to("Dashboard", internal_path, bs: :home, class: "btn btn-primary") 
def icon_link_to text, path, options = {}                                                                     
    list = block_given? ? yield : ""                                                                                
    btn_dropdown = options.delete(:dropdown) ? content_tag(:i, "", class: 'fa fa-angle-left pull-right') : ""
    if icon = options.delete(:fa) // font-awesome                                                                              
      return link_to(content_tag(:i, "", class: 'fa fa-' + icon.to_s) + content_tag(:span, text) + btn_dropdown, path, options)  + list