Class: MeterCat::Sum
- Inherits:
-
Object
- Object
- MeterCat::Sum
- Defined in:
- lib/meter_cat/calculator.rb
Overview
Sum
Instance Attribute Summary collapse
-
#values ⇒ Object
Returns the value of attribute values.
Instance Method Summary collapse
- #calculate(meters, date) ⇒ Object
- #dependencies ⇒ Object
-
#initialize(values) ⇒ Sum
constructor
A new instance of Sum.
Constructor Details
#initialize(values) ⇒ Sum
Returns a new instance of Sum.
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# File 'lib/meter_cat/calculator.rb', line 81 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 79 def values @values end |
Instance Method Details
#calculate(meters, date) ⇒ Object
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# File 'lib/meter_cat/calculator.rb', line 85 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 91 def dependencies values end |