Hi,
I’ve got a question about the find() method in RoR
This is my code:
actions=Action.find(:all, :conditions => “ActivityID=‘actid’”)
This should return a list, array, hash, … ? of Actions.
What type of data does find() return? And how do I run through it?
I would like to show Action.ActionCode for every action in actions.
I tried:
for action in actions
output += action.ActionCode
end
Didn’t work.
Thanks,
Steven.
Um, this seems to be a question of understanding Ruby the programming
language rather than understanding Rails the framework.
#find returns an Array object. There are many ways to iterate through an
array, you should check the Ruby documentation here:
http://www.ruby-doc.org/core/
Steven De Ryck wrote:
I would like to show Action.ActionCode for every action in actions.
Steven.
–
Sau S.
http://blog.saush.com
http://read.saush.com
http://jaccal.sourceforge.net
On Apr 14, 2006, at 11:51 AM, Chris T wrote:
It returns an array of hashes. Try going into the console (ruby
script/console) and doing your
No, it’ll return an array of Action objects. Assuming Action is an
ActiveRecord subclass, it’s
definitely NOT a hash.
–
– Tom M.
My bad. That’s what happens when a noob tries to help another noob
Thanks for clarifying.
It returns an array of hashes. Try going into the console (ruby
script/console) and doing your
actions=Action.find(:all…)
and it’ll echo the resulting array.
By the way, action.ActionCode doesn’t look right – attributes are
normally lower case.
Hope this helps
No problem, just trying to be helpful.
Let me guess: You (like I) came from Perl?
There are no built in types in Ruby, everything
is an object. The question is, what type of object
is it?
I only point this out because I see a lot of new
users suggesting that most output from .inspect
is displaying hashes, when they’re really looking
at objects that are NOT hashes.
I’ve learned a lot by helping others on the list,
and occasionally being wrong and getting corrected,
so keep up the good work!
– -- Tom M.
No, PHP. About 25% through the Pickaxe at the moment (and would
recommend to all noobs that they take the time to read it – rails
starts to make much more sense). Taking a bit of time for the whole OO
thing to sink in, but actually I’m lovin it.