Files
openfoodnetwork/app/models/spree/calculator.rb
Maikel Linke 8ef6966891 Declare old belongs_to default on remaining models
It would take ages to go through all files now and assess all belongs_to
associations. So I just declare the old default and then we can move on
and apply the new default for the application while these classes still
use the old one. All new models will then use the new default which is
the goal of this excercise and we can refactor old classes when we touch
them anyway.
2023-08-11 10:14:43 +10:00

59 lines
1.4 KiB
Ruby

# frozen_string_literal: true
module Spree
class Calculator < ApplicationRecord
self.belongs_to_required_by_default = false
belongs_to :calculable, polymorphic: true
# This method must be overriden in concrete calculator.
#
# It should return amount computed based on #calculable and/or optional parameter
def compute(_something = nil)
raise NotImplementedError, 'please use concrete calculator'
end
# overwrite to provide description for your calculators
def self.description
'Base Calculator'
end
###################################################################
def self.register(*klasses); end
# Returns all calculators applicable for kind of work
def self.calculators
Rails.application.config.spree.calculators
end
def to_s
self.class.name.titleize.gsub("Calculator\/", "")
end
def description
self.class.description
end
def available?(_object)
true
end
private
# Given an object which might be an Order or a LineItem (amongst
# others), return a collection of line items.
def line_items_for(object)
if object.is_a?(Spree::LineItem)
[object]
elsif object.respond_to? :line_items
object.line_items
elsif object.respond_to?(:order) && object.order.present?
object.order.line_items
else
[object]
end
end
end
end