On May 5, 2:41 am, S Ahmed <sahmed1...@gmail.com> wrote: > ah I see, this is what I have experienced. > > But why is that? Shouldn't both getting and setting have similiar > behaviour? > > I think when I was getting a value, using self.attribute wasn't working, is > that the case or was I doing somehting else wrong? > There is the same ambiguity when getting a value, however (unlike when setting) if there is no local variable called foo then ruby can assume that foo means self.foo. If there was such a local variable then you'd need to disambiguate in the same way
Fred > On Wed, May 4, 2011 at 8:31 PM, Jim Ruther Nill <jvn...@gmail.com> wrote: > > > > > > > On Thu, May 5, 2011 at 3:34 AM, S Ahmed <sahmed1...@gmail.com> wrote: > > >> I'm a little confused when I should be using 'self' in my model. > > >> I had code like: > > >> class User < ActiveRecord::Base > > >> before_save :do_something > > >> def do_something > > >> self.user_bio_text = .... > >> .. > >> self.user_bio_text > >> end > > >> end > > >> If I removed 'self', it didn't seem to set the model's attribute at all > >> (it would return nil). > > > when assigning values to attributes of an instance object, you need to use > > self, ie self.attribute = something. > > if you're only getting the value of that attribute, no need to add self. > > >> I can't recall exaclty where this happenend in my code, but I remember > >> that I was trying to get the a model's attribute and it didn't work when I > >> used 'self.some_attribute'. > > >> So I'm confused, when do I use 'self' and when't don't I? > > >> -- > >> 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 rubyonrails-talk@googlegroups.com. > >> To unsubscribe from this group, send email to > >> rubyonrails-talk+unsubscr...@googlegroups.com. > >> For more options, visit this group at > >>http://groups.google.com/group/rubyonrails-talk?hl=en. > > > -- > > ------------------------------------------------------------- > > visit my blog athttp://jimlabs.heroku.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 rubyonrails-talk@googlegroups.com. > > To unsubscribe from this group, send email to > > rubyonrails-talk+unsubscr...@googlegroups.com. > > For more options, visit this group at > >http://groups.google.com/group/rubyonrails-talk?hl=en. -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
