Class: MeterCat::Sum

Inherits:
Object
  • Object
show all
Defined in:
lib/meter_cat/calculator.rb

Overview

Sum

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(values) ⇒ Sum

Returns a new instance of Sum.



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# File 'lib/meter_cat/calculator.rb', line 78

def initialize( values )
  @values = values
end

Instance Attribute Details

#values ⇒ Object

Returns the value of attribute values.



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# File 'lib/meter_cat/calculator.rb', line 76

def values
  @values
end

Instance Method Details

#calculate(meters, date) ⇒ Object 



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# File 'lib/meter_cat/calculator.rb', line 82

def calculate( meters, date )
  sum = 0
  values.each { |name| sum += ( meters[ name ][ date ] || 0 ) if meters[ name ] }
  return sum
end

#dependencies ⇒ Object 



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# File 'lib/meter_cat/calculator.rb', line 88

def dependencies
  values
end