On 24 February 2011 14:55, Bhasker Harihara <[email protected]> wrote: > > > > On Thu, Feb 24, 2011 at 6:50 PM, Colin Law <[email protected]> wrote: >> >> On 24 February 2011 12:36, Bhasker Harihara <[email protected]> >> wrote: >> > >> > >> > On Thu, Feb 24, 2011 at 5:55 PM, Colin Law <[email protected]> >> > wrote: >> >> >> >> On 24 February 2011 12:09, Bhasker Harihara >> >> <[email protected]> >> >> wrote: >> >> > ... >> >> > Can you also expalin how validates get the values from the form_for >> >> >> >> It doesn't, your code does that and then calls save. When you call >> >> save the validations get called at appropriate points around the save >> >> to check the data. >> >> >> >> Have a look at the Rails Guide 'ActiveRecord Validations and Callback'. >> >> >> >> Colin >> >> >> >> -- >> > >> > >> > I click "sign up" -> form_for gets displayed -> I click "save" then in >> > user.rb validates takes place. Am I correct to say this. >> >> After you click 'save' it goes off to some controller action. >> Somewhere in there it presumably calls @user.save >> @user.update_attributes or one of the other ways that a record gets >> saved. It is at this point that the validations get called. >> >> Colin >> >> -- > > Yes, you are correct, I understand that. In my users_contoller.rb I have, > > def create > @user = User.new(params[:user]) > # Handle a successful save. > if @user.save > redirect_to @user > else > @title = "Sign up" > render 'new' > end > end > > At that time the validates in the model user.rb gets triggered, am I correct > to say that. It validates the fields based on the code like > > validates :uun, :presence => true, length => { :maximum =>12}, :uniqueness > => true > validates :uname, :presence => true, length => { :maximum => 64} etc... > > after this I use puts "the name is #{uname}". This has problem.
I keep telling you, you cannot just put code after the validates line, that line is executed only once, when the file is loaded, it sets up the callback stuff so that the appropriate methods are called when you call save. > > But if I do the puts in "before_save :encryt_password". Then I have no > errors. > > I just want to add some more fields before saving the record, that's why it > is important for me. In that case you probably want to use the before_save filter. That will let you specify a method to be called before each save. You can do the extra stuff there. 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.
