Class: Workarea::Pricing::Discount::Order

Inherits:
Object
  • Object
show all
Defined in:
app/models/workarea/pricing/discount/order.rb

Overview

This class is a wrapper for Order, which includes logic for discount eligibility (e.g. some SKUs can’t be discounted).

Used in discount calculation, wraps the order and is passed to each discount for qualification and application.

Instance Method Summary collapse

Constructor Details

#initialize(order, shippings = [], discount = nil) ⇒ Order

Returns a new instance of Order.



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# File 'app/models/workarea/pricing/discount/order.rb', line 11

def initialize(order, shippings = [], discount = nil)
  @order = order
  @shippings = Array(shippings)
  @discount = discount
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args, &block) ⇒ Object 



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# File 'app/models/workarea/pricing/discount/order.rb', line 98

def method_missing(sym, *args, &block)
  @order.send(sym, *args, &block) if @order.respond_to?(sym)
end

Instance Method Details

#add_item(item) ⇒ Workarea::Order::Item

Add an item to the order (without persisting). Used in FreeGift discounts.

Returns:



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# File 'app/models/workarea/pricing/discount/order.rb', line 66

def add_item(item)
  @order.items << item
end

#allow_sale_items? ⇒ Boolean

Whether to allow sale items in the evaluation of this discount/order combination.

Returns:

  • (Boolean) 


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# File 'app/models/workarea/pricing/discount/order.rb', line 22

def allow_sale_items?
  @discount.blank? || @discount.allow_sale_items?
end

#include_item?(item) ⇒ Boolean

Whether or not an item should be included in discount qualification and value calculations.

Parameters:

Returns:

  • (Boolean) 


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# File 'app/models/workarea/pricing/discount/order.rb', line 85

def include_item?(item)
  item.discountable? &&
    (allow_sale_items? || !item.on_sale?) &&
    !@discount&.excludes_product_id?(item.product_id) &&
    item.category_ids.none? { |cid| @discount&.excludes_category_id?(cid) }
end

#items ⇒ Array<Workarea::Order::Item>

Only return items that are discountable.

Returns:



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# File 'app/models/workarea/pricing/discount/order.rb', line 39

def items
  @order.items.select(&method(:include_item?))
end

#quantity ⇒ Integer

The total quantity of only discountable items.

Returns:

  • (Integer) 


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# File 'app/models/workarea/pricing/discount/order.rb', line 57

def quantity
  @quantity ||= items.sum(&:quantity) || 0
end

#remove_item(item) ⇒ Workarea::Order::Item

Remove an item to the order (without persisting). Used in FreeGift discounts.

Returns:



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# File 'app/models/workarea/pricing/discount/order.rb', line 75

def remove_item(item)
  @order.items = @order.items.reject { |i| i.id == item.id }
end

#respond_to_missing?(method_name, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/workarea/pricing/discount/order.rb', line 93

def respond_to_missing?(method_name, include_private = false)
  super || @order.respond_to?(method_name)
end

#shippings ⇒ Array<Shipping>

The shipping associated with the order for the purpose of this pricing request.

Returns:



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# File 'app/models/workarea/pricing/discount/order.rb', line 31

def shippings
  @shippings
end

#subtotal_price ⇒ Money

The subtotal, not including items that cannot be discounted.

Returns:



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# File 'app/models/workarea/pricing/discount/order.rb', line 47

def subtotal_price
  items.reduce(0.to_m) do |memo, item|
    memo + item.price_adjustments.sum
  end
end