Rails - Aug 2011 - passing intance variable from controller application_controller.rb to view template

Hi, guy.

How to pass a variable from application_controller.rb to view template.
Whatever it is what kind of variable. I just want to pass the variable value
to template.

Thank you.

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On 25 August 2011 03:39, coolesting
<coolesting-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi, guy.
>
> How to pass a variable from application_controller.rb to view template.
> Whatever it is what kind of variable. I just want to pass the variable
value
> to template.
In a method in the controller say
@my_variable = the_value

Call that method from the action being performed and access
@my_variable in the view.

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Colin
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Thanks Colin,
I solved this problem, if i do as you said , it just works in normal
controller, not in application_controller.rb

I should do like this ,

before_filter :my_var

def my_var
    @my_var =  ''a string''
end

So it works in view as normally variable invoked.



2011/8/24 Colin Law <clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> On 25 August 2011 03:39, coolesting
<coolesting-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > Hi, guy.
> >
> > How to pass a variable from application_controller.rb to view
template.
> > Whatever it is what kind of variable. I just want to pass the variable
> value
> > to template.
>
> In a method in the controller say
> @my_variable = the_value
>
> Call that method from the action being performed and access
> @my_variable in the view.
>
> --
> Colin
> https://plus.google.com/111605230843729345543/
>
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coolesting d. wrote in post #1018357:
> Hi, guy.
>
> How to pass a variable from application_controller.rb to view template.
> Whatever it is what kind of variable. I just want to pass the variable
> value
> to template.
>
> Thank you.

class Animal
  @val = 10

  def self.val
    @val
  end

end

class Dog < Animal
  def some_action
    @val_from_app_controller = Animal.val
    puts @val_from_app_controller
  end
end

controller = Dog.new
controller.some_action

--output:--
10

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