Hi!
I want to find sum of values for a particular field of all the
records. Right nw i m doing it using simple looping mechanism.
@dummy=0
@quotations.each do|quotation|@dummy+=quotation.value end
Is there any other way for doing this??
Also, when i m using an observer on a dropdown where on selecting a
vendor''s name from it, would result in shwoing the list of quotations
from
him. This is working for some vendors only. Wot cud be the problem??
Thnx and regards,
Swanand
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dblack-TKXtfPMJ4Ozk1uMJSBkQmQ@public.gmane.org
2007-Jan-29 12:53 UTC
Re: The sum of the values
Hi -- On Mon, 29 Jan 2007, swanand deodhar wrote:> Hi! > I want to find sum of values for a particular field of all the > records. Right nw i m doing it using simple looping mechanism. > @dummy=0 > @quotations.each do|quotation|@dummy+=quotation.value end > Is there any other way for doing this??This should do it: total = @quotations.sum(:value)> Also, when i m using an observer on a dropdown where on selecting a > vendor''s name from it, would result in shwoing the list of quotations from > him. This is working for some vendors only. Wot cud be the problem??I can''t tell without some more information. David -- Q. What is THE Ruby book for Rails developers? A. RUBY FOR RAILS by David A. Black (http://www.manning.com/black) (See what readers are saying! http://www.rubypal.com/r4rrevs.pdf) Q. Where can I get Ruby/Rails on-site training, consulting, coaching? A. Ruby Power and Light, LLC (http://www.rubypal.com) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Hi!
I m hvng a list of vendor''s with me. In the view i hve attached an
observer to the dropdown of this vendor''s list.
<%= observe_field (:vendor_name_id
:frequency=>1,
:update=>''ob_div'',
:url=>{:action=>:quotation}) %>
Now, once the user selects a vendor from the dropdown,thn in the quotation
action in controller, i m trying to find out his credit rating and the
credit period expiry date for the latest order placed with him(with some
date arithmatic)
@vendor=Entry.find_by_name(request.raw_post).
which will populate the ob_div. This is working for some vendors and not
all. In the vendor''s table i m hvng the column called as
''credit_rating"
Wot cud be wrong?
Thnx and regards,
Swanand
On 1/29/07, dblack-TKXtfPMJ4Ozk1uMJSBkQmQ@public.gmane.org
<dblack-TKXtfPMJ4Ozk1uMJSBkQmQ@public.gmane.org>
wrote:>
>
> Hi --
>
> On Mon, 29 Jan 2007, swanand deodhar wrote:
>
> > Hi!
> > I want to find sum of values for a particular field of all the
> > records. Right nw i m doing it using simple looping mechanism.
> > @dummy=0
> > @quotations.each do|quotation|@dummy+=quotation.value end
> > Is there any other way for doing this??
>
> This should do it:
>
> total = @quotations.sum(:value)
>
> > Also, when i m using an observer on a dropdown where on selecting
a
> > vendor''s name from it, would result in shwoing the list of
quotations
> from
> > him. This is working for some vendors only. Wot cud be the problem??
>
> I can''t tell without some more information.
>
>
> David
>
> --
> Q. What is THE Ruby book for Rails developers?
> A. RUBY FOR RAILS by David A. Black (http://www.manning.com/black)
> (See what readers are saying! http://www.rubypal.com/r4rrevs.pdf)
> Q. Where can I get Ruby/Rails on-site training, consulting, coaching?
> A. Ruby Power and Light, LLC (http://www.rubypal.com)
>
> >
>
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