Class: DistanceUnit

Inherits:
Numeric
  • Object
show all
Defined in:
lib/housing_misc/distance_unit.rb

Direct Known Subclasses

ImperialDistance, MetricDistance

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value, base_unit, dimension, dimension_prefix) ⇒ DistanceUnit

Returns a new instance of DistanceUnit.



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# File 'lib/housing_misc/distance_unit.rb', line 37

def initialize value, base_unit, dimension, dimension_prefix
  @value = value
  @base_unit = base_unit
  @dimension = dimension
  @dimension_prefix = dimension_prefix
end

Instance Attribute Details

#base_unit ⇒ Object

Returns the value of attribute base_unit.



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# File 'lib/housing_misc/distance_unit.rb', line 35

def base_unit
  @base_unit
end

#dimension ⇒ Object (readonly)

Returns the value of attribute dimension.



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# File 'lib/housing_misc/distance_unit.rb', line 34

def dimension
  @dimension
end

#dimension_prefix ⇒ Object (readonly)

Returns the value of attribute dimension_prefix.



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# File 'lib/housing_misc/distance_unit.rb', line 34

def dimension_prefix
  @dimension_prefix
end

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/housing_misc/distance_unit.rb', line 35

def value
  @value
end

Instance Method Details

#format_display ⇒ Object 



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# File 'lib/housing_misc/distance_unit.rb', line 44

def format_display
  display_string = ''
  base_distance = self.to_metres
  if base_distance.value >= 1000
    display_string = "#{base_distance.to_kilometres.value.round(1)} km"
  else
    display_string = "#{base_distance.value.round(0)} m"
  end
  return display_string
end

#unit ⇒ Object 



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# File 'lib/housing_misc/distance_unit.rb', line 55

def unit
  return "#{self.dimension_prefix}#{self.base_unit}"
end