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## rails_cheatsheet.md

      
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                coderxin
                / rails_cheatsheet.md
            
            
              Created
              August 14, 2013 09:33
                — forked from azinazadi/rails_cheatsheet.md
            
          
    An incomplete cheatsheet for rails 3. Things are added as they are required.
Active Record validations

# http://guides.rubyonrails.org/active_record_validations_callbacks.html

class SomeClass < ActiveRecord::Base

  # length

  
## cache.rb
# Amadeusz Juskowiak <amadeusz@amanointeractive.com> 2012 - MIT License

# 1. Put inside helpers do .. end
# 2. Set CACHE_DIR to somewhere writable and private (like CACHE_DIR=File.dirname(__FILE__) + '/tmp'
# 3. Use it! You can use fragment_expire to remove cache with given name.
#
# Example:
#   %h1 foo
#   = cache_fragment(:report, 300) do
#     - data = get_data_slowly

## list_of_countries.rb
COUNTRIES = [
  "Afghanistan",
  "Aland Islands",
  "Albania",
  "Algeria",
  "American Samoa",
  "Andorra",
  "Angola",
  "Anguilla",
  "Antarctica",
	# Amadeusz Juskowiak <amadeusz@amanointeractive.com> 2012 - MIT License

	# 1. Put inside helpers do .. end
	# 2. Set CACHE_DIR to somewhere writable and private (like CACHE_DIR=File.dirname(__FILE__) + '/tmp'
	# 3. Use it! You can use fragment_expire to remove cache with given name.
	#
	# Example:
	# %h1 foo
	# = cache_fragment(:report, 300) do
	# - data = get_data_slowly
	COUNTRIES = [
	"Afghanistan",
	"Aland Islands",
	"Albania",
	"Algeria",
	"American Samoa",
	"Andorra",
	"Angola",
	"Anguilla",
	"Antarctica",