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module Spree
module Stock
class Quantifier
attr_reader :stock_items
def initialize(variant, stock_location = nil)
@variant = variant
where_args = { variant_id: @variant }
if stock_location
where_args[:stock_location] = stock_location
else
where_args[Spree::StockLocation.table_name] = { active: true }
end
@stock_items = Spree::StockItem.joins(:stock_location).where(where_args)
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
21 entries across 21 versions & 1 rubygems