Sha256: 69a8c23106d1b536dd341a89e5f26689ea6f95bd10d31c273fe3d6e8bd239528
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Versions: 62
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Contents
module Workarea
module Pricing
class Discount
# This class exists mostly for performance. It gets a list
# of discounts and caches that list so qualification does not have to
# fetch from the database over and over again.
#
class Collection
include Enumerable
delegate :each, :select, :reject, :to_set, to: :all
# TODO remove in v4, unused
def self.expire_cache
Rails.cache.delete('discounts_cache')
end
# All currently active discounts.
#
# @return [Array<Discount>]
#
def all
@all ||= Pricing::Discount
.all
.to_a
.select(&:active?)
.sort
end
# Find a discount by id.
#
# @param [String] id
# @return [Discount, nil]
#
def find(id)
all.detect { |discount| discount.id.to_s == id.to_s }
end
# Find an array of discounts that are instances of
# the passed class.
#
# @param [Class] klass
# @return [Array<Discount>]
#
def find_by_class(klass)
all.select { |discount| discount.class == klass }
end
# Get a compiled list of SKUs from all discounts. Useful
# when trying to lookup all SKUs for a pricing request at once
# (for performance).
#
# @return [Array<String>]
#
def skus
all.select { |d| d.respond_to?(:sku) }.map(&:sku)
end
end
end
end
end
Version data entries
62 entries across 62 versions & 1 rubygems