Class: Flipper::Expressions::Duration

Inherits:
Object
  • Object
show all
Defined in:
lib/flipper/expressions/duration.rb

Constant Summary collapse

SECONDS_PER = 
{
  "second" => 1,
  "minute" => 60,
  "hour" => 3600,
  "day" => 86400,
  "week" => 604_800,
  "month" => 2_629_746,  # 1/12 of a gregorian year
  "year" => 31_556_952 # length of a gregorian year (365.2425 days)
}.freeze

Class Method Summary collapse

Class Method Details

.call(scalar, unit = 'second') ⇒ Object 



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# File 'lib/flipper/expressions/duration.rb', line 14

def self.call(scalar, unit = 'second')
  unit = unit.to_s.downcase.chomp("s")

  unless scalar.is_a?(Numeric)
    raise ArgumentError.new("Duration value must be a number but was #{scalar.inspect}")
  end
  unless SECONDS_PER[unit]
    raise ArgumentError.new("Duration unit #{unit.inspect} must be one of: #{SECONDS_PER.keys.join(', ')}")
  end

  scalar * SECONDS_PER[unit]
end