Wednesday, April 25, 2012
Someone can correct me if I'm wrong, but the second example actually is a hash. You wrote:
u.update_attributes(:name =>"Fred", :color => "green")
The arguments you passed in are a hash. It's the same thing as writing:
u.update_attributes({:name =>"Fred", :color => "green"})
Ruby (I think...or is it Rails?) gives you the freedom that if the 'last' parameter passed to a method is a hash, you can omit the { } characters.
-- u.update_attributes(:name =>"Fred", :color => "green")
The arguments you passed in are a hash. It's the same thing as writing:
u.update_attributes({:name =>"Fred", :color => "green"})
Ruby (I think...or is it Rails?) gives you the freedom that if the 'last' parameter passed to a method is a hash, you can omit the { } characters.
On Wed, Apr 25, 2012 at 1:21 PM, Dave Castellano <lists@ruby-forum.com> wrote:
Working thru a Rails tutorial...
Can anyone tell me why the first example uses braces and the second
example uses parentheses? Is it because 1st example is a hash literal,
second is not?
u = User.find(2)
u.attributes = {:name =>"Fred", :color => "green"}
u.save
u = User.find(2)
u.update_attributes(:name =>"Fred", :color => "green")
--
Posted via http://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 rubyonrails-talk@googlegroups.com.
To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@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+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment