so basically what your saying is; before filter: calc_remaining
def calc_renaming #taken query here -- I forget what I did - not at my development pc... @remaining = @product.qty - @taken end Then call calc_renaming from the two methods I need to figure out what remaining is. Thanks, Joe On Saturday, March 4, 2017 at 3:18:11 AM UTC-5, Colin Law wrote: > > On 3 March 2017 at 22:39, Joe Guerra <jgu...@jginfosys.com <javascript:>> > wrote: > > ok, I thought about that. Would it be ok to like set the instant > variable > > to a global and use that? > > > > $remaining = @remaining > > > > I tried that, and it seems to have worked. I not sure if it's the best > > practice though. > > Definitely not. In addition to the fact that presumable @remaining is > different for different products, and a request for a different > product could come in between the two requests you are interested in > (so the global would be set for the wrong product) consider the case > where your app becomes popular enough to be distributed over multiple > instances of the server. In that case the two requests might go to > different servers so the global would not be setup for the second one. > Also consider that when using something like nginx to run your > production site that if it is not used for a while nginx may shutdown > the app and restart it when the next request comes in. Again the > global would not be set. > > I suggest following Hassan's advice. > > Colin > > > > > > On Friday, March 3, 2017 at 5:21:22 PM UTC-5, Colin Law wrote: > >> > >> On 3 March 2017 at 22:03, Joe Guerra <jgu...@jginfosys.com> wrote: > >> > Ok, how do I deal with that? > >> > >> You have to recalculate the variable in each method that you need it. > >> > >> Colin > > > > -- > > You received this message because you are subscribed to the Google > Groups > > "Ruby on Rails: Talk" group. > > To unsubscribe from this group and stop receiving emails from it, send > an > > email to rubyonrails-ta...@googlegroups.com <javascript:>. > > To post to this group, send email to rubyonra...@googlegroups.com > <javascript:>. > > To view this discussion on the web visit > > > https://groups.google.com/d/msgid/rubyonrails-talk/46af96c5-857d-4742-894d-be66446bf1a0%40googlegroups.com. > > > > > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/6e912764-edf7-43b4-a243-2799d76607b1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.