Class: Patterns::Calculation

Inherits:
Object
  • Object
show all
Defined in:
lib/patterns/calculation.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Calculation

Returns a new instance of Calculation.



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# File 'lib/patterns/calculation.rb', line 7

def initialize(*args)
  @options = args.extract_options!
  @subject = args.first
end

Class Method Details

.calculate ⇒ Object 



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# File 'lib/patterns/calculation.rb', line 18

def self.result(*args, &block)
  new(*args).cached_result(&block)
end

.result(*args, &block) ⇒ Object 



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# File 'lib/patterns/calculation.rb', line 12

def self.result(*args, &block)
  new(*args).cached_result(&block)
end

.result_for ⇒ Object 



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# File 'lib/patterns/calculation.rb', line 17

def self.result(*args, &block)
  new(*args).cached_result(&block)
end

.set_cache_expiry_every(period) ⇒ Object 



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# File 'lib/patterns/calculation.rb', line 21

def self.set_cache_expiry_every(period)
  self.cache_expiry_every = period
end

Instance Method Details

#cached_result(&block) ⇒ Object 



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# File 'lib/patterns/calculation.rb', line 25

def cached_result(&block)
  if cache_expiry_period.blank?
    result(&block)
  else
    Rails.cache.fetch(cache_key, expires_in: cache_expiry_period) do
      result(&block)
    end
  end
end