On Sun, May 24, 2009 at 11:32 AM, SpringFlowers AutumnMoon <rails-mailing-l...@andreas-s.net> wrote: > > we use > > (1..10).each do |i| > p i > end > > so that a value is "yield" to i in a block... > > but what about > > <% form_for @story do |f| %> > <%= f.text_field %> > <% end %> > > there is no loop at all... why do we need to make it look like a loop? > Can't we do it without making it look like a loop? (write in another > way)? > > Also, must be use a Story instance here? Can't we just use :story and > achieve the same result? The @story instance is just newly created and > has no data at all -- does it actually help creating the form? Can't > :story suffice already? thanks.
Both these examples of code use blocks, the first just happens to be a loop, the second only looks like a loop if your first experience of blocks is in loops. I think it's important that you forget about the loop and focus on blocks, once you've understood blocks, it will no longer look like a loop and you'll understand that you really don't want to write it a different way (even though it's possible) Yes, you can use @story or :story and form_for will figure it out for you. Mostly it depends on where you're using the form, new or edit etc. Andrew Timberlake http://ramblingsonrails.com http://MyMvelope.com - The SIMPLE way to manage your savings --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
