Class: Spree::Promotion::Actions::CreateAdjustment

Inherits:
Spree::PromotionAction show all
Includes:
AdjustmentSource, CalculatedAdjustments
Defined in:
app/models/spree/promotion/actions/create_adjustment.rb

Instance Method Summary collapse

Methods inherited from Base

page

Methods included from Spree::Preferences::Preferable

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

Instance Method Details

#compute_amount(calculable) ⇒ Object

Ensure a negative amount which does not exceed the sum of the order’s item_total and ship_total



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# File 'app/models/spree/promotion/actions/create_adjustment.rb', line 39

def compute_amount(calculable)
  amount = self.calculator.compute(calculable).to_f.abs
  [(calculable.item_total + calculable.ship_total), amount].min * -1
end

#perform(options = {}) ⇒ Object

Creates the adjustment related to a promotion for the order passed through options hash

Returns ‘true` if an adjustment is applied to an order, `false` if the promotion has already been applied.



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# File 'app/models/spree/promotion/actions/create_adjustment.rb', line 20

def perform(options = {})
  order = options[:order]
  return if promotion_credit_exists?(order)

  amount = compute_amount(order)
  return if amount == 0
  Spree::Adjustment.create!(
    amount: amount,
    order: order,
    adjustable: order,
    source: self,
    promotion_code: options[:promotion_code],
    label: "#{Spree.t(:promotion)} (#{promotion.name})"
  )
  true
end