example

module Opportunities
  class CustomerReferencesQuery
    attr_reader :query, :opportunity

    def initialize(query, opportunity)
      @basic_query = query
      @opportunity = opportunity
    end

    def call
      query = @basic_query.filter_by_industry.filter_by_product
      return query if query.count >= 5
      
      query = @basic_query.filter_by_product
      return query if query.count >= 5
      
      @basic_query
    end
    
    
    def filter_by_industry
      where(customer_reference.customer.industry_id = opportunity.customer.industry_id)
    end
    
    def filter_by_product
      where(customer_reference.customer.products = opportunity.products)
    end
  end
end