Class: Spree::Calculator::FlexiRate

Inherits:
Spree::Calculator show all
Defined in:
app/models/spree/calculator/flexi_rate.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Spree::Calculator

#available?, calculators, #description, #to_s

Methods inherited from Base

belongs_to_required_by_default, page, spree_base_scopes

Methods included from Preferences::Preferable

#clear_preferences, #default_preferences, #defined_preferences, #get_preference, #has_preference!, #has_preference?, #preference_default, #preference_type, #set_preference

Class Method Details

.available?(_object) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/spree/calculator/flexi_rate.rb', line 14

def self.available?(_object)
  true
end

.description ⇒ Object 



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# File 'app/models/spree/calculator/flexi_rate.rb', line 10

def self.description
  Spree.t(:flexible_rate)
end

Instance Method Details

#compute(object) ⇒ Object 



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# File 'app/models/spree/calculator/flexi_rate.rb', line 18

def compute(object)
  compute_from_quantity(object.quantity)
end

#compute_from_quantity(quantity) ⇒ Object 



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# File 'app/models/spree/calculator/flexi_rate.rb', line 22

def compute_from_quantity(quantity)
  count = [quantity, preferred_max_items].reject(&:zero?).min

  return BigDecimal(0) if count.zero?

  preferred_first_item + (count - 1) * preferred_additional_item
end