Rails - Aug 2009 - Display variable as method in an activerecord call?

Example:

def somemethod(variable)
  value = Record.find(:all)
  value.each do |row|
    row.colone = "foo"
    row.coltwo = "bar"
    row.__send__(variable) = "keke"
    row.save!
  end
end

somemethod(colthree)

=> unexpected ''='', expecting kEND

I can''t do row.variable, that will create an undefined method.  What
can
I do to place in the expected column?
-- 
Posted via http://www.ruby-forum.com/.

I figured it out myself.


def somemethod(variable)
  value = Record.find(:all)
  value.each do |row|
    row.colone = "foo"
    row.coltwo = "bar"
    row[variable.to_sym] = "keke"
    row.save!
  end
end

Making the variable into a symbol works.
-- 
Posted via http://www.ruby-forum.com/.

On Aug 20, 2009, at 3:08 PM, Alpha Blue wrote:
> Example:
>
> def somemethod(variable)
>  value = Record.find(:all)
>  value.each do |row|
>    row.colone = "foo"
>    row.coltwo = "bar"
>    row.__send__(variable) = "keke"
>    row.save!
>  end
> end
>
> somemethod(colthree)
>
> => unexpected ''='', expecting kEND
>
> I can''t do row.variable, that will create an undefined method. 
What
> can
> I do to place in the expected column?
> -- 

Do you want something like:

   row.__send__("#{variable}=", "keke")

If your meaning is to assign to a column whose name is supplied, then  
you might also do:

   row[variable] = ''keke''

or even

   row.write_attribute(variable, ''keke'')

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org