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Active Record - sample project

Step by step tutorial to create very simple Contacts listing.

1. Generate new project

Open Terminal and run:

mkdir ~/Code

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# Usage:
#   rails new my_app -m template.rb
#
# or for existing app (inside an app folder):
#   rails app:template LOCATION=../template.rb

# Gemfile
gem 'bootstrap', '~> 5.1.3'
gem 'sass-rails', '~> 6.0.0'
gem_group :development, :test do

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# Default user
email = 'demo@demo.sk'
password = 'demodemo'

unless User.exists?(email: email)
  User.create!(email: email, password: password, password_confirmation: password)
end

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@albums = Album.all(:conditions => ['published = ?', true], :order => 'created_at desc')
@albums_years = @albums.group_by { |a| a.created_at.beginning_of_year }

# group_by je tu klucovy, vsimni si ze sablona index potom pouziva tu premennu @albums_years

# Tie :conditions je samozrejme zastarala syntax,
# ale aj tak tebe bude stacit Album.all, resp Album.page(...) v pripade strankovania cez kaminari

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# Instalacia Heroku Toolbelt:
# https://toolbelt.heroku.com

heroku login

# Install postgres on local machine:
http://postgresapp.com

# and run:
http://bit.ly/1kBJJi2

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git init .
git add .
git status
git commit -a -m "Popis commitu"
git log

git push
git pull

------

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<?php
mysql_connect("localhost", "mysql_user", "mysql_password") or die("Could not connect: " . mysql_error());
mysql_select_db("mydb");

$result = mysql_query("SELECT price, product_id FROM product_attributes");

while ($row = mysql_fetch_array($result, MYSQL_NUM)) {
  echo "price: ".$row[0]
  echo "product_id".$row[1]
}

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require 'spec_helper'

describe CampaignsController do
  let(:user){ create(:admin_user) }

  before(:each) do    
    sign_in user
  end

  describe "GET #index" do

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Libraries

• 960 Grid System - An effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels. There are two variants: 12 and 16 columns, which can be used separately or in tandem.
• Compass - Open source CSS Authoring Framework.
• Bootstrap - Sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
• Font Awesome - The iconic font designed for Bootstrap.
• Zurb Foundation - Framework for writing responsive web sites.
• SASS - CSS extension language which allows variables, mixins and rules nesting.
• Skeleton - Boilerplate for responsive, mobile-friendly development.

Guides

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Libraries

• jQuery - The de-facto library for the modern age. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.
• Backbone - Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface.
• AngularJS - Conventions based MVC framework for HTML5 apps.
• Underscore - Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the built-in JavaScript objects.
• lawnchair - Key/value store adapter for indexdb, localStorage