From: Sam Duncan <sduncan@...>
Date: 2012-10-09T05:17:43+09:00
Subject: Re: Undefined method `-' for nil

On 10/09/2012 09:13 AM, Joz Private wrote:
> Hi guys.
>
> So I've hit a brick wall with a simple piece of code and hope someone
> here can shed some light on what's going wrong ...
>
> ***************************************************
> developer_object_array.each do |dev|
>      if dev.is_solvent? == false
>        then puts("#{dev.name} is bankrupt.")
>          dev.bankrupt = true
>          bank_object_array.each do |bank|
>            bank.moves_loans(amount)
>      else puts("#{dev.name} is not bankrupt.")
>      end
>    end
> *********************************************************
>
> I have the above piece of code in a class. Inside this class I create
> and array of Bank and Developer objects. When the code gets to
> bank.move_loans
> I get an "undefined method `-' for nil:NilClass (NoMethodError" error.
>
> The move_loans method is defined in the Bank class just does some basic
> subtraction on the value passed to it.
>
> I've no idea what the error is, as I've torn through every piece of code
> in the classes and can't see anything wrong.
>
> Any ideas would be great!! Thanks!
>
Really need to see what the developer objects and bank objects look 
like, and how/ where the bank_object_array gets populated.

Sam