scottohara/loot

# Copyright (c) 2016 Scott O'Hara, oharagroup.net
# frozen_string_literal: true

# Category serializer
class CategorySerializer < ::ActiveModel::Serializer
    attributes :id, :name, :direction, :parent_id, :num_children, :closing_balance, :num_transactions, :favourite
    attribute(:parent) { object.parent&.as_json fields: %i[id name direction] }
    attribute :children, if: :include_children?

    def include_children?
        !object.parent && object.children.loaded?
    end

    def children
        object.children.as_json fields: %i[id name direction parent_id parent num_transactions favourite]
    end

    def num_children
        object.children.size
    end

    def num_transactions
        object.transactions.count
    end
end