Strange thing with controller's helper method and method return value

Rails
1

1, why my helper method does not work
I hava a controller named msg, and i define a method test(id) in /
app/helpers/msg_helper.rb
but i can not use this method in /app/controllers/
msg_controller.rb.
Can anyone tells me why ?Doedn’t rails require msg_helper.rb for
me ?
2, how can i use a hash type variable returned by a method
Because i can’t use helper method, i write the method just in
msg_controller.rb
like:
:private
def test(id)
xx = {}
xx[:test] = 1
return xx
end
and i find xx i get via xx = test(id) is nil
I think in ruby method hash type variable will be returned by
value(or maybe reference, but the variable will not out of scope)
but why can i get the true value ?
Thanks very much~~
My enviroment:
ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]
Rails 2.0.2
oracle 10

2

1, why my helper method does not work
I hava a controller named msg, and i define a method test(id) in /
app/helpers/msg_helper.rb
but i can not use this method in /app/controllers/
msg_controller.rb.
Can anyone tells me why ?Doedn’t rails require msg_helper.rb for
me ?

A helper is simply a module containing methods that assist a view not
your controller. If you want make method for your controller and tobe
used to many controller you can put your method in application.rb

and i find xx i get via xx = test(id) is nil

Sorry I not understand what do you mean on sentences above.

~~~~~~~~~~~~~~~~~*
Reinhart Ariando
YM : booking2heaven
Web: http://teapoci.blogspot.com
~~~~~~~~~~~~~~~~~*

3

On 20 Feb 2008, at 12:41, hei wrote:

msg_controller.rb.
developer

  1. Look in the directory app/models for a model in the file store.rb
    and
    load it if found.
    That’s just wrong - it’s never been like that.

Add this to one of your controller
def test_action
new = {}
value = test_method
new.merge(value)
merge doesn’t alter the hash, it returns a new hash with the merge
contents (merge! does an inplace merge)

Fred

4

On Feb 20, 4:32 pm, Visit Indonesia 2008 <rails-mailing-l…@andreas-
s.net> wrote:

used to many controller you can put your method in application.rb

See a content I copy from “Agile Web D. with Rails 2nd” 18.1
Context and Dependencis
Rails handles many configuration dependencies automatically; as a
developer
you can normally rely on it to do the right thing. For example, if a
request arrives for http://my.url/store/list, Rails will do the
following.

  1. Load the file store_controller.rb in the directory app/
    controllers. (This
    loading takes place only once in a production environment).
  2. Instantiate an object of class StoreController.
    @@@ 3. Look in app/helpers for a file called store_helper.rb. If
    found, it is loaded
    and the module StoreHelper is mixed into the controller object.
  3. Look in the directory app/models for a model in the file store.rb
    and
    load it if found.
    Do you see 3 ? is rails 2.0.2 changes this ?

and i find xx i get via xx = test(id) is nil

Sorry I not understand what do you mean on sentences above.

I mean , test(id) is supposed to renturn a hash with value {:text =>
1}
but actually , it returns nil or {}
You can have a simple test
Add this to one of your controller
def test_action
new = {}
value = test_method
new.merge(value)
render :text => new[:text]
end
:private
def test_method()
value = {:text => 1}
return value
end
Then visit http://root/controller/test_action to see what it returns
Actually, ‘value’ returned by test_method is something like

flash: !map:ActionController::Flash::FlashHash
:value: &id001
:text: 1
:value: *id001
I think new.merge(value) makes this
Can anyone tells me more details ?
Thanks!

5

emm…
Just basic knowledges…
I almost spent two hours on it …
Thank you very much~~~

On Feb 20, 8:51 pm, Frederick C. [email protected]