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# The reason for variant properties not being associated with variants # (either directly or through an association table) is performance. # # Variant properties are intended to be applied to a group of variants based # on their option values. If there were thousands of variants that shared the # same option value, attempting to associate a variant property with that # group of variants would be problematic in terms of performance. # # An added benefit to this approach is not having to associate existing variant # properties with newly created variants. If the variant has the option values # targeted by the rule, the properties will automatically apply to the variant. module Spree class VariantPropertyRule < Spree::Base belongs_to :product, touch: true has_many :values, class_name: 'Spree::VariantPropertyRuleValue', dependent: :destroy has_many :properties, through: :values has_many :conditions, class_name: 'Spree::VariantPropertyRuleCondition', dependent: :destroy has_many :option_values, through: :conditions accepts_nested_attributes_for :values, allow_destroy: true, reject_if: lambda { |val| val[:property_name].blank? } # Checks whether the provided ids are the same as the rule's # condition's option value ids. # # @param option_value_ids [Array<Integer>] list of option value ids # @return [Boolean] def matches_option_value_ids?(option_value_ids) self.option_value_ids.sort == option_value_ids.sort end # Checks whether the rule applies to the variant by # checking the rule's conditions against the variant's # option values. # # @param variant [Spree::Variant] variant to check # @return [Boolean] def applies_to_variant?(variant) (option_value_ids & variant.option_value_ids).present? end end end
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43 entries across 43 versions & 1 rubygems