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require 'active_support/duration'
require 'active_support/core_ext/time/calculations'
require 'active_support/core_ext/time/acts_like'
class Numeric
# Enables the use of time calculations and declarations, like 45.minutes + 2.hours + 4.years.
#
# These methods use Time#advance for precise date calculations when using from_now, ago, etc.
# as well as adding or subtracting their results from a Time object. For example:
#
# # equivalent to Time.now.advance(:months => 1)
# 1.month.from_now
#
# # equivalent to Time.now.advance(:years => 2)
# 2.years.from_now
#
# # equivalent to Time.now.advance(:months => 4, :years => 5)
# (4.months + 5.years).from_now
#
# While these methods provide precise calculation when used as in the examples above, care
# should be taken to note that this is not true if the result of `months', `years', etc is
# converted before use:
#
# # equivalent to 30.days.to_i.from_now
# 1.month.to_i.from_now
#
# # equivalent to 365.25.days.to_f.from_now
# 1.year.to_f.from_now
#
# In such cases, Ruby's core
# Date[http://stdlib.rubyonrails.org/libdoc/date/rdoc/index.html] and
# Time[http://stdlib.rubyonrails.org/libdoc/time/rdoc/index.html] should be used for precision
# date and time arithmetic
def seconds
ActiveSupport::Duration.new(self, [[:seconds, self]])
end
alias :second :seconds
def minutes
ActiveSupport::Duration.new(self * 60, [[:seconds, self * 60]])
end
alias :minute :minutes
def hours
ActiveSupport::Duration.new(self * 3600, [[:seconds, self * 3600]])
end
alias :hour :hours
def days
ActiveSupport::Duration.new(self * 24.hours, [[:days, self]])
end
alias :day :days
def weeks
ActiveSupport::Duration.new(self * 7.days, [[:days, self * 7]])
end
alias :week :weeks
def fortnights
ActiveSupport::Duration.new(self * 2.weeks, [[:days, self * 14]])
end
alias :fortnight :fortnights
# Reads best without arguments: 10.minutes.ago
def ago(time = ::Time.current)
time - self
end
# Reads best with argument: 10.minutes.until(time)
alias :until :ago
# Reads best with argument: 10.minutes.since(time)
def since(time = ::Time.current)
time + self
end
# Reads best without arguments: 10.minutes.from_now
alias :from_now :since
end
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