class ActiveSupport::Duration

Provides accurate date and time measurements using Date#advance and Time#advance, respectively. It mainly supports the methods on Numeric. Example:

1.month.ago       # equivalent to Time.now.advance(:months => -1)

Attributes

parts[RW]
value[RW]

Public Instance Methods

+(other) click to toggle source

Adds another Duration or a Numeric to this Duration. Numeric values are treated as seconds.

# File lib/active_support/duration.rb, line 21
def +(other)
  if Duration === other
    Duration.new(value + other.value, @parts + other.parts)
  else
    Duration.new(value + other, @parts + [[:seconds, other]])
  end
end
-(other) click to toggle source

Subtracts another Duration or a Numeric from this Duration. Numeric values are treated as seconds.

# File lib/active_support/duration.rb, line 31
def -(other)
  self + (-other)
end
==(other) click to toggle source

Returns true if other is also a Duration instance with the same value, or if other == value.

# File lib/active_support/duration.rb, line 46
def ==(other)
  if Duration === other
    other.value == value
  else
    other == value
  end
end
ago(time = ::Time.current) click to toggle source

Calculates a new Time or Date that is as far in the past as this Duration represents.

# File lib/active_support/duration.rb, line 69
def ago(time = ::Time.current)
  sum(-1, time)
end
Also aliased as: until
from_now(time = ::Time.current)
Alias for: since
since(time = ::Time.current) click to toggle source

Calculates a new Time or Date that is as far in the future as this Duration represents.

# File lib/active_support/duration.rb, line 62
def since(time = ::Time.current)
  sum(1, time)
end
Also aliased as: from_now
until(time = ::Time.current)
Alias for: ago