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module Spree
module Stock
class Quantifier
attr_reader :stock_items
# @param [Variant] variant The variant to check inventory for.
# @param [StockLocation, Integer] stock_location The stock_location to check inventory in. If unspecified it will check inventory in all available StockLocations
def initialize(variant, stock_location = nil)
@variant = variant
@stock_items = Spree::StockItem.where(variant_id: variant)
if stock_location
@stock_items.where!(stock_location: stock_location)
else
@stock_items.joins!(:stock_location).merge!(Spree::StockLocation.active)
end
end
# Returns the total number of inventory units on hand for the variant.
#
# @return [Fixnum] number of inventory units on hand, or infinity if
# inventory is not tracked on the variant.
def total_on_hand
if @variant.should_track_inventory?
stock_items.sum(:count_on_hand)
else
Float::INFINITY
end
end
# Checks if any of its stock items are backorderable.
#
# @return [Boolean] true if any stock items are backorderable
def backorderable?
stock_items.any?(&:backorderable)
end
# Checks if it is possible to supply a given number of units.
#
# @param required [Fixnum] the number of required stock units
# @return [Boolean] true if we have the required amount on hand or the
# variant is backorderable, otherwise false
def can_supply?(required)
total_on_hand >= required || backorderable?
end
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems