A simple library to handle recurring events.
Recurrence can be installed by running
gem install recurrence
require 'rubygems'
require 'recurrence'
# Daily
r = Recurrence.new(:every => :day)
r = Recurrence.new(:every => :day, :interval => 9)
r = Recurrence.daily(options = {})
# Weekly
r = Recurrence.new(:every => :week, :on => 5)
r = Recurrence.new(:every => :week, :on => :monday)
r = Recurrence.new(:every => :week, :on => [:monday, :friday])
r = Recurrence.new(:every => :week, :on => [:monday, :wednesday, :friday])
r = Recurrence.new(:every => :week, :on => :friday, :interval => 2)
r = Recurrence.weekly(:on => :thursday)
# Monthly by month day
r = Recurrence.new(:every => :month, :on => 15)
r = Recurrence.new(:every => :month, :on => 31)
r = Recurrence.new(:every => :month, :on => 7, :interval => 2)
r = Recurrence.new(:every => :month, :on => 7, :interval => :monthly)
r = Recurrence.new(:every => :month, :on => 7, :interval => :bimonthly)
r = Recurrence.monthly(:on => 31)
# Monthly by week day
r = Recurrence.new(:every => :month, :on => :first, :weekday => :sunday)
r = Recurrence.new(:every => :month, :on => :third, :weekday => :monday)
r = Recurrence.new(:every => :month, :on => :last, :weekday => :friday)
r = Recurrence.new(:every => :month, :on => :last, :weekday => :friday, :interval => 2)
r = Recurrence.new(:every => :month, :on => :last, :weekday => :friday, :interval => :quarterly)
r = Recurrence.new(:every => :month, :on => :last, :weekday => :friday, :interval => :semesterly)
# Yearly
r = Recurrence.new(:every => :year, :on => [7, 4]) # => [month, day]
r = Recurrence.new(:every => :year, :on => [10, 31], :interval => 3)
r = Recurrence.new(:every => :year, :on => [:jan, 31])
r = Recurrence.new(:every => :year, :on => [:january, 31])
r = Recurrence.yearly(:on => [:january, 31])
# Limit recurrence
# :starts defaults to Date.today
# :until defaults to 2037-12-31
r = Recurrence.new(:every => :day, :starts => Date.today)
r = Recurrence.new(:every => :day, :until => '2010-01-31')
r = Recurrence.new(:every => :day, :starts => Date.today, :until => '2010-01-31')
# Getting an array with all events
r.events.each {|date| puts date.to_s } # => Memoized array
r.events!.each {|date| puts date.to_s } # => reset items cache and re-execute it
r.events(:starts => '2009-01-01').each {|date| puts date.to_s }
r.events(:until => '2009-01-10').each {|date| puts date.to_s }
r.events(:starts => '2009-01-05', :until => '2009-01-10').each {|date| puts date.to_s }
# Iterating events
r.each { |date| puts date.to_s } # => Use items method
r.each! { |date| puts date.to_s } # => Use items! method
# Check if a date is included
r.include?(Date.today) # => true or false
r.include?('2008-09-21')
# Get next available date
r.next # => Keep the original date object
r.next! # => Change the internal date object to the next available date
If you're having problems because already have a class/module called Recurrence that is conflicting with this gem, you can require the namespace and inherit from the SimplesIdeias::Recurrence
class.
require "recurrence/namespace"
class RecurrentEvent < SimplesIdeias::Recurrence
end
r = RecurrentEvent.new(:every => :day)
If you're using Rails/Bundler or something like that, remember to override the :require
option.
# Gemfile
source :rubygems
gem "recurrence", :require => "recurrence/namespace"
- Nando Vieira (http://simplesideias.com.br/)
- José Valim (http://josevalim.blogspot.com/)
(The MIT License)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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