#!/bin/ruby --verion => 2.0.0-p353
In Ruby, self is a special variable that always references the current object.
| (require 'org) | |
| (setq-default indent-tabs-mode nil) | |
| (setq org-display-inline-images t) | |
| (setq org-redisplay-inline-images t) | |
| (setq org-startup-with-inline-images "inlineimages") | |
| (setq default-frame-alist | |
| (append (list '(width . 72) '(height . 40)))) |
As your business logic gets complex you may need to implement transactions. The classic example is a bank funds transfer from account A to account B. If the withdrawal from account A fails then the deposit to account B should either never take place or be rolled back.
All the complexity is handled by ActiveRecord::Transactions. Any model class or instance has a method named .transaction. When called and passed a block, that block will be executed inside a database transaction. If there's an exception raised, the transaction will automatically be rolled back.
| $('form .input.array').each(function() { | |
| var $wrapper = $('.array-inputs', this); | |
| var $insertArea = $(".array-input button[data-action=add]").closest(".array-input"); | |
| $(".array-input button[data-action=add]", $(this)).click(function(e) { | |
| $('.array-input:first-child', $wrapper).clone(true).insertBefore($insertArea).find('input').val('').focus(); | |
| }); | |
| $('.array-input button[data-action=remove]', $wrapper).click(function() { | |
| if ($('.array-input', $wrapper).length > 2) { | |
| $(this).parent('.array-input').remove(); | |
| } |
| Go to Bitbucket and create a new repository (its better to have an empty repo) | |
| git clone [email protected]:abc/myforkedrepo.git | |
| cd myforkedrepo | |
| Now add Github repo as a new remote in Bitbucket called "sync" | |
| git remote add sync [email protected]:def/originalrepo.git | |
| Verify what are the remotes currently being setup for "myforkedrepo". This following command should show "fetch" and "push" for two remotes i.e. "origin" and "sync" | |
| git remote -v |
| HTTP status code symbols for Rails | |
| Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings. | |
| Status Code Symbol | |
| 1xx Informational | |
| 100 :continue | |
| 101 :switching_protocols | |
| 102 :processing |
| // XORCipher - Super simple encryption using XOR and Base64 | |
| // | |
| // Depends on [Underscore](http://underscorejs.org/). | |
| // | |
| // As a warning, this is **not** a secure encryption algorythm. It uses a very | |
| // simplistic keystore and will be easy to crack. | |
| // | |
| // The Base64 algorythm is a modification of the one used in phpjs.org | |
| // * http://phpjs.org/functions/base64_encode/ | |
| // * http://phpjs.org/functions/base64_decode/ |
| RYAML = <<-BASH | |
| function ryaml { | |
| ruby -ryaml -e 'puts ARGV[1..-1].inject(YAML.load(File.read(ARGV[0]))) {|acc, key| acc[key] }' "$@" | |
| }; | |
| BASH | |
| namespace :sync do | |
| task :db do | |
| isolate do | |
| invoke :environment |