Thanks for your response. That fulfilled my implementation goal perfectly.
Best wishes, Richard On Aug 8, 11:41 pm, Ar Chron <[email protected]> wrote: > RichardOnRails wrote: > > Hi All, > > > I've got an Expense model as follows: > > > class Expense < ActiveRecord::Base > > belongs_to :vendor > > > def validate_on_create > > unless params["expense"]["vendor_id"] != "0" # <= Line 5 > > errors.add("A vendor must be selected before creating the > > expense record") > > end > > end > > end > > > that crashes with: > > > undefined local variable or method `params' for #<Expense:0x4716c00> > > [snip] > > Your model by itself knows nothing about params received in the > controller. And by the time you're looking at validate_on_create, the > attributes from params have been assigned to the model, IIRC. > > What about simply > > def validate_on_create > unless vendor_id != 0 > errors.add(blah blah blah) > end > end > -- > Posted viahttp://www.ruby-forum.com/. -- 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.
