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Versions: 29

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# frozen_string_literal: true

require 'spree/preferences/persistable'

module Spree
  # Base class for all promotion rules
  class PromotionRule < Spree::Base
    include Spree::Preferences::Persistable

    belongs_to :promotion, class_name: 'Spree::Promotion', inverse_of: :promotion_rules, optional: true

    scope :of_type, ->(type) { where(type: type) }

    validates :promotion, presence: true
    validate :unique_per_promotion, on: :create

    def self.for(promotable)
      all.select { |rule| rule.applicable?(promotable) }
    end

    def applicable?(_promotable)
      raise NotImplementedError, "applicable? should be implemented in a sub-class of Spree::PromotionRule"
    end

    def eligible?(_promotable, _options = {})
      raise NotImplementedError, "eligible? should be implemented in a sub-class of Spree::PromotionRule"
    end

    # This states if a promotion can be applied to the specified line item
    # It is true by default, but can be overridden by promotion rules to provide conditions
    def actionable?(_line_item)
      true
    end

    def eligibility_errors
      @eligibility_errors ||= ActiveModel::Errors.new(self)
    end

    def to_partial_path
      "spree/admin/promotions/rules/#{model_name.element}"
    end

    private

    def unique_per_promotion
      if Spree::PromotionRule.exists?(promotion_id: promotion_id, type: self.class.name)
        errors[:base] << "Promotion already contains this rule type"
      end
    end

    def eligibility_error_message(key, options = {})
      I18n.t(key, **{ scope: [:spree, :eligibility_errors, :messages] }.merge(options))
    end
  end
end

Version data entries

29 entries across 29 versions & 1 rubygems

Version Path
solidus_core-3.1.9 app/models/spree/promotion_rule.rb
solidus_core-3.1.8 app/models/spree/promotion_rule.rb
solidus_core-3.0.8 app/models/spree/promotion_rule.rb
solidus_core-3.0.7 app/models/spree/promotion_rule.rb
solidus_core-2.11.17 app/models/spree/promotion_rule.rb
solidus_core-3.1.7 app/models/spree/promotion_rule.rb
solidus_core-2.11.16 app/models/spree/promotion_rule.rb
solidus_core-3.0.6 app/models/spree/promotion_rule.rb
solidus_core-3.1.6 app/models/spree/promotion_rule.rb
solidus_core-2.11.15 app/models/spree/promotion_rule.rb
solidus_core-2.11.14 app/models/spree/promotion_rule.rb
solidus_core-3.0.5 app/models/spree/promotion_rule.rb
solidus_core-3.1.5 app/models/spree/promotion_rule.rb
solidus_core-2.11.13 app/models/spree/promotion_rule.rb
solidus_core-3.0.4 app/models/spree/promotion_rule.rb
solidus_core-3.1.4 app/models/spree/promotion_rule.rb
solidus_core-2.11.12 app/models/spree/promotion_rule.rb
solidus_core-3.0.3 app/models/spree/promotion_rule.rb
solidus_core-3.1.3 app/models/spree/promotion_rule.rb
solidus_core-3.1.2 app/models/spree/promotion_rule.rb