[Rails] Re: undefined method + method(argument)

Michael Pavling wrote in post #954819:
> On 16 October 2010 15:46, Evanoshki Brataslavainskinski

> So you've added a method to your controller, and you want to call that
> method from a view? If so, you need to define it as a "helper method"
> in the controller:
>
> helper_method :find_first_in_group
>
> BUT... without a bit more information, it's not possible to say for
> sure, but it's possible that it would be more appropriate to put the
> method in a model as a class method. But hard to say with what you've
> given us.
>
>> In other programming languages it would be something like:
>> find_first_in_group(image_url).
>
> In Ruby it's exactly the same - although it's common to drop the
> parentheses ;-)

Thanks to Michael Pavling for guiding me in the right direction

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