Rails - Sep 2008 - action view mutiplication problem and why doesn't method work

I am trying to multiply something in view but what i get is the first
parameter without the 2nd parameter being multiplied.

<%= product.price*product.quantity %> only gives product.price


Secondly I have put this method into the


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Arggh sorry abouht the above post i accidently sent it without
finihing it.

my second question is that i have put this method in the controller

  def qx(product,price)
  	result = product.price * product.quantity
  end


and what i get is "undefined method `qx'' for
#<ActionView::Base:
0xb6960044>"

I am putting it in the right place??? i have tried the model but no
luck

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I hope ur trying to do

in ur controller

def view
@product = Product.find(params[:id])
@total = qx(@product.price,@product.quantity)
end

private
def qx(price,quantity)
return price*quantity
end


:)
On Mon, Sep 1, 2008 at 1:18 PM, tyliong
<tyliong-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> Arggh sorry abouht the above post i accidently sent it without
> finihing it.
>
> my second question is that i have put this method in the controller
>
>  def qx(product,price)
>        result = product.price * product.quantity
>  end
>
>
> and what i get is "undefined method `qx'' for
#<ActionView::Base:
> 0xb6960044>"
>
> I am putting it in the right place??? i have tried the model but no
> luck
>
> >
>
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On Sep 1, 8:48 am, tyliong
<tyli...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Arggh sorry abouht the above post i accidently sent it without
> finihing it.
>
> my second question is that i have put this method in the controller
>
>   def qx(product,price)
>         result = product.price * product.quantity
>   end
>
> and what i get is "undefined method `qx'' for
#<ActionView::Base:
> 0xb6960044>"
>
> I am putting it in the right place??? i have tried the model but no
> luck
No you''re not. If you want to call the method in the view you need to
put it in a view helper (rails will have created an empty view helper
for you.

Just having it inline in the view file should work though (assuming
what you''ve got are actually all numbers, not strings or something
like that). At the end of the day I''d probably have this as a method
on product.

Fred
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One more question for methods

in my method i have this:

def qx(food)
groceries.name.food
end

in the view i do this

<%= qx(food) %>

but i keep getting "wrong number of arguments (0 for 1)"

i try to do this in view food="food" and food=food but no luck

btw do all methods without "self."  need to be in the helper file?

and why can''t i multiply 2 ruby records together in the view?
On Sep 1, 4:10 pm, Frederick Cheung
<frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On Sep 1, 8:48 am, tyliong
<tyli...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > Arggh sorry abouht the above post i accidently sent it without
> > finihing it.
>
> > my second question is that i have put this method in the controller
>
> >   def qx(product,price)
> >         result = product.price * product.quantity
> >   end
>
> > and what i get is "undefined method `qx'' for
#<ActionView::Base:
> > 0xb6960044>"
>
> > I am putting it in the right place??? i have tried the model but no
> > luck
>
> No you''re not. If you want to call the method in the view you need
to
> put it in a view helper (rails will have created an empty view helper
> for you.
>
> Just having it inline in the view file should work though (assuming
> what you''ve got are actually all numbers, not strings or something
> like that). At the end of the day I''d probably have this as a
method
> on product.
>
> Fred
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