On 11 January 2012 11:07, Ahmy Yulrizka <[email protected]> wrote: > > Ahmy Yulrizka > > > On Wed, Jan 11, 2012 at 1:43 AM, Loren <[email protected]> wrote: >> >> ... >> puts var_m * numb_m + var_d * numb_d + var_c * numb_c + var_l * >> numb_l + var_x * numb_x + var_v * numb_v + var_i * numb_i > > > this line interpret as var_i * nil > hence that error > > simple solution is > > change it to : > > var_i * (numb_i || 0) > > that line actually mean : > > var_i * numb_i if numb_i is not nil > else var_i * 0
Also have a look at the Rails Guide on debugging, that will show you how to use ruby-debug to break into your code and inspect data, which will help when you have similar issues again. Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
