Class: Spree::Calculator::DefaultTax

Inherits:
Spree::Calculator show all
Includes:
VatPriceCalculation
Defined in:
app/models/spree/calculator/default_tax.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from VatPriceCalculation

#gross_amount

Methods inherited from Spree::Calculator

#available?, calculators, #compute, #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

.description ⇒ Object 



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# File 'app/models/spree/calculator/default_tax.rb', line 6

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

Instance Method Details

#compute_order(order) ⇒ Object

Default tax calculator still needs to support orders for legacy reasons Orders created before Spree 2.1 had tax adjustments applied to the order, as a whole. Orders created with Spree 2.2 and after, have them applied to the line items individually.



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# File 'app/models/spree/calculator/default_tax.rb', line 13

def compute_order(order)
  matched_line_items = order.line_items.select do |line_item|
    line_item.tax_category == rate.tax_category
  end

  line_items_total = matched_line_items.sum(&:total)
  if rate.included_in_price
    round_to_two_places(line_items_total - (line_items_total / (1 + rate.amount)))
  else
    round_to_two_places(line_items_total * rate.amount)
  end
end

#compute_shipment_or_line_item(item) ⇒ Object Also known as: compute_shipment, compute_line_item

When it comes to computing shipments or line items: same same.



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# File 'app/models/spree/calculator/default_tax.rb', line 27

def compute_shipment_or_line_item(item)
  if rate.included_in_price
    deduced_total_by_rate(item.pre_tax_amount, rate)
  else
    round_to_two_places(item.discounted_amount * rate.amount)
  end
end

#compute_shipping_rate(shipping_rate) ⇒ Object 



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# File 'app/models/spree/calculator/default_tax.rb', line 38

def compute_shipping_rate(shipping_rate)
  if rate.included_in_price
    pre_tax_amount = shipping_rate.cost / (1 + rate.amount)
    deduced_total_by_rate(pre_tax_amount, rate)
  else
    with_tax_amount = shipping_rate.cost * rate.amount
    round_to_two_places(with_tax_amount)
  end
end