Re: [Rails] newbie: handling a method error

On 18 August 2011 21:58, Dorijan Jelincic <dmailj@gmail.com> wrote:
> Hi...
> I have 2 tables, connected with belongs_to and has_one and everything
> works ok until I get one entry in base where I dont have set id of
> belongs_to entry. How can I prevent it(except that that all entry has
> ids :) or dont print anithing in view?
>
> this is what I am talking about:
> I have customer and it has firm_id
> trable firm has id and name
>
> so when I try to print
> customer.firm.name I got error.

<%= customer.firm.name if customer.firm %>

Or possibly better to provide a method, say firm_name, of Customer
that tests self.firm and returns the name or nil or maybe a default
string if that is what you want, then do

<%= customer.firm_name %>

Colin

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