Module: ActivePeriod::Comparable

Includes:
Comparable
Included in:
Period
Defined in:
lib/active_period/comparable.rb

Instance Method Summary collapse

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/active_period/comparable.rb', line 20

def <=>(other)
  case other
  when DateTime, Time, ActiveSupport::TimeWithZone
    if first < other && last < other
      -1
    elsif first > other && last > other
      1
    else
      0
    end
  when ActiveSupport::Duration, Numeric
    to_i <=> other.to_i
  else
    if self.class != other.class
      raise ArgumentError, I18n.t(:incomparable_error, scope: %i[active_period comparable])
    else
      (self.begin <=> other)
    end
  end
end

#clamp_on(other) ⇒ Object

Reverse clamp where the ‘other` is clamped by `self`

If other is an ActivePeriod::Period then `clamp_on` will return an ActivePeriod::Period
If other is not an ActivePeriod::Period then `clamp_on` will return a range



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# File 'lib/active_period/comparable.rb', line 44

def clamp_on(other)
  case other
  when DateTime, Time, ActiveSupport::TimeWithZone
    case self <=> other
    when -1
      last
    when 0
      other
    when 1
      first
    end
  when ActivePeriod::Period
    self & other
  when Range
    if (other.first > last && other.last > last) ||
       (other.first < first && other.last < first)
      return nil
    end

    clamped = clamp_on(other.first) .. clamp_on(other.last)

    if other.is_a? ActivePeriod::Period
      clamped.to_period
    else
      clamped
    end
  else
    raise ArgumentError, I18n.t(:incomparable_error, scope: %i[active_period comparable])
  end
  #
  # new_first = other.first < first ? first : other.first
  # new_last = other.last > last ? last : other.last
  #
  # if other.is_a? ActivePeriod::Period
  #   Period.new(new_first .. new_last)
  # else
  #   new_first .. new_last
  # end
end

#include?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_period/comparable.rb', line 5

def include?(other)
  case other
  when DateTime, Time, ActiveSupport::TimeWithZone
    include_time?(other)
  when Date
    include_period?(ActivePeriod::Day.new(other))
  when ActivePeriod::Period
    include_period?(other)
  when Range
    include?(other.first) && include?(other.last)
  else
    raise ArgumentError, I18n.t(:incomparable_error, scope: %i[active_period comparable])
  end
end