Class: Spree::Products::PrepareNestedAttributes

Inherits:
Object
  • Object
show all
Defined in:
app/services/spree/products/prepare_nested_attributes.rb

Overview

Prepares nested attributes for product updates, handling multi-store scenarios and permissions.

This service ensures that when editing a product in one store, taxon associations from other stores are preserved. This prevents accidental data loss when a store admin updates product categories in their store without affecting other stores.

Examples:

service = Spree::Products::PrepareNestedAttributes.new(
  product,
  current_store,
  params,
  current_ability
)
prepared_params = service.call

Instance Method Summary collapse

Constructor Details

#initialize(product, store, params, ability) ⇒ PrepareNestedAttributes

Returns a new instance of PrepareNestedAttributes.



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# File 'app/services/spree/products/prepare_nested_attributes.rb', line 20

def initialize(product, store, params, ability)
  @product = product
  @store = store
  @params = params
  @ability = ability
end

Instance Method Details

#call ⇒ Object 



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# File 'app/services/spree/products/prepare_nested_attributes.rb', line 27

def call
  if params[:variants_attributes]
    params[:variants_attributes].each do |key, variant_params|
      existing_variant = variant_params[:id].presence && @product.variants.find_by(id: variant_params[:id])
      variants_to_remove.delete(variant_params[:id]) if variant_params[:id].present?

      if can_update_prices?
        # If the variant price is nil then mark it for destruction
        variant_params[:prices_attributes]&.each do |price_key, price_params|
          variant_params[:prices_attributes][price_key]['_destroy'] = '1' if price_params[:amount].blank?
        end
      else
        variant_params.delete(:prices_attributes)
      end

      variant_params[:option_value_variants_attributes] = update_option_value_variants(variant_params.delete(:options), existing_variant)

      variant_params.delete(:stock_items_attributes) unless can_update_stock_items?

      params[:variants_attributes].delete(key) if variant_params.blank?
    end
    params[:variants_attributes] = params[:variants_attributes].merge(removed_variants_attributes)

    params[:product_option_types_attributes] = product_option_types_params.merge(removed_product_option_types_attributes)
  elsif params[:master_attributes]
    params[:master_attributes].delete(:stock_items_attributes) unless can_update_stock_items?

    if can_update_prices?
      # If the master price is nil then mark it for destruction
      params.dig(:master_attributes, :prices_attributes)&.each do |price_key, price_params|
        params[:master_attributes][:prices_attributes][price_key]['_destroy'] = '1' if price_params[:amount].blank?
      end
    else
      params[:master_attributes].delete(:prices_attributes)
    end
  end

  # mark resource properties to be removed
  # when value is left blank
  if params[:product_properties_attributes].present?
    params[:product_properties_attributes].each do |key, product_property_params|
      next unless product_property_params[:id].present?
      next if product_property_params[:value].present?

      # https://api.rubyonrails.org/v7.1.3.4/classes/ActiveRecord/NestedAttributes/ClassMethods.html
      params[:product_properties_attributes][key]['_destroy'] = '1'
    end
  end

  # ensure there is at least one store
  params[:store_ids] = [store.id] if params[:store_ids].blank?

  # Preserve taxon associations from other stores
  # Only merge taxon_ids from other stores if taxon_ids are being updated
  if params.key?(:taxon_ids)
    params[:taxon_ids] = merge_taxons_from_other_stores(params[:taxon_ids])
  end

  # Add empty list for option_type_ids and mark variants as removed if there are no variants and options
  if params[:variants_attributes].blank? && variants_to_remove.any? && !params.key?(:option_type_ids)
    params[:option_type_ids] = []
    params[:variants_attributes] = {}

    variants_to_remove.each_with_index do |variant_id, index|
      params[:variants_attributes][index.to_s] = { id: variant_id, _destroy: '1' }
    end

    params[:variants_attributes].permit!
  end

  params
end