Rails - Aug 2006 - Writing a Helper function

I''ve finally gotten to the point where I want to write my own helper 
function to call from my views. I used the script/generate to create my 
Controller so I also got the helper file.

I defined the method I wanted to use in the helper rb file, but when I 
try to call them from the view I get a NoMethodError raised.

Is there anything else I have to do besides creating the method in the 
Helper module in the app/helpers directory and call it from a view? The 
on-line documentation on helpers seems a bit light.

Thanks

Dave

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Hi --

On Sun, 13 Aug 2006, Dave Fox wrote:
> I''ve finally gotten to the point where I want to write my own
helper
> function to call from my views. I used the script/generate to create my
> Controller so I also got the helper file.
>
> I defined the method I wanted to use in the helper rb file, but when I
> try to call them from the view I get a NoMethodError raised.
>
> Is there anything else I have to do besides creating the method in the
> Helper module in the app/helpers directory and call it from a view? The
> on-line documentation on helpers seems a bit light.
Make sure you define the method inside the module definition:

module SomeHelper
   def help_me
     ...
   end
end

and not before or after it.  I''m just guessing that might be the
problem -- it''s a not unheard-of cause of that NoMethodError from
helpers.


David

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Which file are you putting the helper function into? You might want to 
include

*The file that the helper method is in
*The line that calls the method in the view
*The error that you are getting as a result

In your error report, it''s a bit hard to troubleshoot without more
data.

Helper functions work for me. You can try and put your method in 
application_helper.rb. Make sure you are not putting your def into the 
controller application.rb.


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