Toy code for loan matching

basket_controller.rb

    def match_loans(basket)

        match_basket = nil
        total_spent = 0
        match_user = # LOAD UP THE MATCHING ACCOUNT

        basket.basket_items.each do |item|
            loan = item.purchasable

            # If this loan qualifies for matching and 
            # If there are enough shares left to sell and ...
            # If the matching user has enough funds left
            # TODO I'm sure there's a more elegant way to write this if clause, it looks yucky
            if loan.qualifies_for_matching?  && item.amount < loan.amount_left_to_purchase && item.amount < (match_user.balance - total_spent)

                    # Create the matching basket if we haven't already...
                    match_basket ||= Basket.create! :user => matching_user
                    # Put a matched item in the basket
                    BasketItem.create! :purchasable => loan, :amount => item.amount
                    total_spent = total_spent + item.amount
            end
        end

        # If we found anything to put in the match basket, ask the PHP side to fulfill the basket
        unless match_basket.nil?
            match_basket.state = :paypal
            match_basket.save!

            job = GearmanJob.new
            job.fulfill_paypal_transaction(match_basket, nil)
        end
    end