class ActiveSupport::Duration
Provides accurate date and time measurements using Date#advance and Time#advance, respectively. It mainly supports the methods on Numeric.
1.month.ago # equivalent to Time.now.advance(months: -1)
Attributes
parts[RW]
value[RW]
Public Instance Methods
+(other)
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Adds another Duration or a Numeric to this Duration. Numeric values are treated as seconds.
# File lib/active_support/duration.rb, line 19 def +(other) if Duration === other Duration.new(value + other.value, @parts + other.parts) else Duration.new(value + other, @parts + [[:seconds, other]]) end end
-(other)
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==(other)
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Returns true
if other
is also a Duration instance with the same
value
, or if other == value
.
# File lib/active_support/duration.rb, line 44 def ==(other) if Duration === other other.value == value else other == value end end
ago(time = ::Time.current)
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Calculates a new Time or Date that is as far in the past as this Duration represents.
# File lib/active_support/duration.rb, line 71 def ago(time = ::Time.current) sum(-1, time) end
Also aliased as: until
eql?(other)
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# File lib/active_support/duration.rb, line 52 def eql?(other) other.is_a?(Duration) && self == other end