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  var holidays =[]
  //holiday model ruby, table that save all the holidays federal
  holidays = "<%= Holiday.all.map{ |h| h.date.strftime("%Y-%m-%d") } %>";
  /*example "2015-10-12", "2015-11-02", "2015-11-16", "2015-12-08", "2015-12-25", "2016-01-01", 
  "2016-01-11", "2016-03-21", "2016-03-24", "2016-03-25", "2016-05-01", "2016-05-09", "2016-05-30",
  "2016-06-06", "2016-07-04", "2016-07-20", "2016-08-07", "2016-08-15", "2016-10-17", "2016-11-07", 
  "2016-11-14", "2016-12-08", "2016-12-25"]*/

                    
  $('.date').datepicker({

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  def date_diff(date1, date2)
    month = (date2.year * 12 + date2.month) - (date1.year * 12 + date1.month)
    month.divmod(12)
  end
  
  #for get the years
  date_diff(date,  Date.today)[0]
  
  #for get the months
  date_diff(date,  Date.today)[1]

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Git repository hosting service

• Github: https://github.com
• Gitlab: https://about.gitlab.com/
• Bitbucket: https://bitbucket.org/

Frameworks css

• Twitter Bootstrap: http://getbootstrap.com/
• Foundation Zurb: http://foundation.zurb.com/

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class Array

	<<-DOC
		8, 3, -2, -7, -12, ...
		3 - 8 = -5
		-2 - 3 = -5
		-7 - (-2) = -5
	  -12 - (-7) = -5

		d = −5.

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Git commands

• To UNDO local file changes but NOT REMOVE your last commit, then use

git reset --hard

• To UNDO local file changes AND REMOVE your last commit, then use

git reset --hard HEAD^

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gem 'wicked', '~> 1.3'
gem 'wicked_pdf', '~> 1.0', '>= 1.0.6'
gem 'wkhtmltopdf-binary', '~> 0.12.3'

group :production, :staging do
 gem 'wkhtmltopdf-heroku', '~> 2.12', '>= 2.12.3.0'
end

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curl -X POST -d '{title: "foo", body: "example in makeitreal wow", userId: 1 }'  http://jsonplaceholder.typicode.com/posts

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Rails naming conventions

General Ruby conventions

Class names are CamelCase.

Methods and variables are snake_case.

Methods with a ? suffix will return a boolean.

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Restore database with Heroku

Some tips to improve test flow dealing with database on local and production environments.

I. Pull database from Heroku

It is really usefull if you want to fill your local database with real data from production environment.

1. Drop Local Database

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Add on Heroku add-ons

https://elements.heroku.com/addons/rollbar

Install Gem

Add this line to your application's Gemfile:

 gem 'rollbar'