I am really curious... what is up with the random number being appended to the query string of calls to JS, CSS and Image files? At first I thought it was just for development mode so that files would not be cached but when I went to my site in production mode the random number where appended as well. Does anyone know the design decision behind this? Or if the number really is random? Is their a function to get that random number for when I create my own helpers? Thanks for your insite. Your Friend, John Kopanas -- John Kopanas john-Iau1QiYlxLpBDgjK7y7TUQ@public.gmane.org http://www.kopanas.com http://www.cusec.net http://www.soen.info --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
Rimantas Liubertas
2006-Sep-17 00:29 UTC
Re: Random Number Appended to Images,JS and CSS files
> I am really curious... what is up with the random number being > appended to the query string of calls to JS, CSS and Image files? At > first I thought it was just for development mode so that files would > not be cached but when I went to my site in production mode the random > number where appended as well. Does anyone know the design decision > behind this? Or if the number really is random? > > Is their a function to get that random number for when I create my own helpers?Quote from http://api.rubyonrails.com/files/vendor/rails/actionpack/CHANGELOG.html (*1.12.1* (April 6th, 2006)): Added automated timestamping to AssetTagHelper methods for stylesheets, javascripts, and images when Action Controller is run under Rails [DHH]. Example: image_tag("rails.png") # => '<img alt="Rails" src="/images/rails.png?1143664135" />' …to avoid frequent stats (not a problem for most people), you can set RAILS_ASSET_ID in the ENV to avoid stats: ENV["RAILS_ASSET_ID"] = "2345" image_tag("rails.png") # => '<img alt="Rails" src="/images/rails.png?2345" />' This can be used by deployment managers to set the asset id by application revision === end of quote == Regards, Rimantas -- http://rimantas.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@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Thanks Rimantas... I appreciate it. Stilld does not explain why though. I am a big why type of guy. Anyone know why? On 9/16/06, Rimantas Liubertas <rimantas-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > I am really curious... what is up with the random number being > > appended to the query string of calls to JS, CSS and Image files? At > > first I thought it was just for development mode so that files would > > not be cached but when I went to my site in production mode the random > > number where appended as well. Does anyone know the design decision > > behind this? Or if the number really is random? > > > > Is their a function to get that random number for when I create my own helpers? > > Quote from http://api.rubyonrails.com/files/vendor/rails/actionpack/CHANGELOG.html > (*1.12.1* (April 6th, 2006)): > > Added automated timestamping to AssetTagHelper methods for > stylesheets, javascripts, and images when Action Controller is run > under Rails [DHH]. Example: > > image_tag("rails.png") # => ''<img alt="Rails" > src="/images/rails.png?1143664135" />'' > > …to avoid frequent stats (not a problem for most people), you can set > RAILS_ASSET_ID in the ENV to avoid stats: > > ENV["RAILS_ASSET_ID"] = "2345" > image_tag("rails.png") # => ''<img alt="Rails" src="/images/rails.png?2345" />'' > > This can be used by deployment managers to set the asset id by > application revision > > === end of quote ==> > Regards, > Rimantas > -- > http://rimantas.com/ > > > >-- John Kopanas john-Iau1QiYlxLpBDgjK7y7TUQ@public.gmane.org http://www.kopanas.com http://www.cusec.net http://www.soen.info --~--~---------~--~----~------------~-------~--~----~ 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@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Ezra Zygmuntowicz
2006-Sep-17 02:06 UTC
Re: Random Number Appended to Images,JS and CSS files
On Sep 16, 2006, at 6:54 PM, John Kopanas wrote:> > Thanks Rimantas... I appreciate it. Stilld does not explain why > though. I am a big why type of guy. Anyone know why?The reason for the timestamps on assets is to deal with browser caching. Browsers tend to cache css and js for a while when they have the same name and url. This just forces the browser to reload the css or js or image when you make changes to it. This way your users don''t get stale assets that don''t match the html like they should. Its especially helpful in dev mode when often you are making frequent changes to the css and js and you want them to reload in the browser without the need for you to flush your browsers cache. -Ezra --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
John Kopanas wrote:> Thanks Rimantas... I appreciate it. Stilld does not explain why > though. I am a big why type of guy. Anyone know why?I know one helpful thing that results from this, it tends to force the browser to download a new copy of whatever is being downloaded. -- Posted via http://www.ruby-forum.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 -~----------~----~----~----~------~----~------~--~---
I understand this is very helpful in dev mode but is this a good thing in production mode? Downloading the CSS file every single time the user accesses a page of yours slows things down doesn''t it. Isn''t one of the benefits of putting CSS in a seperate file the fact that it can be cached? Do people tend to turn this off for production? On 9/16/06, Shane Pinnell <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> > John Kopanas wrote: > > Thanks Rimantas... I appreciate it. Stilld does not explain why > > though. I am a big why type of guy. Anyone know why? > > I know one helpful thing that results from this, it tends to force the > browser to download a new copy of whatever is being downloaded. > > > -- > Posted via http://www.ruby-forum.com/. > > > >-- John Kopanas john-Iau1QiYlxLpBDgjK7y7TUQ@public.gmane.org http://www.kopanas.com http://www.cusec.net http://www.soen.info --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
John Kopanas wrote:> I understand this is very helpful in dev mode but is this a good thing > in production mode? Downloading the CSS file every single time the > user accesses a page of yours slows things down doesn''t it. Isn''t one > of the benefits of putting CSS in a seperate file the fact that it can > be cached? > > Do people tend to turn this off for production?I thought it was appended with the date the file was last saved. I could definitely be wrong though. -- Posted via http://www.ruby-forum.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 -~----------~----~----~----~------~----~------~--~---
You know what... you might be right. Refreshing the page does not get me a new timestamp. On 9/16/06, Shane Pinnell <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> > John Kopanas wrote: > > I understand this is very helpful in dev mode but is this a good thing > > in production mode? Downloading the CSS file every single time the > > user accesses a page of yours slows things down doesn''t it. Isn''t one > > of the benefits of putting CSS in a seperate file the fact that it can > > be cached? > > > > Do people tend to turn this off for production? > > I thought it was appended with the date the file was last saved. I could > definitely be wrong though. > > > -- > Posted via http://www.ruby-forum.com/. > > > >-- John Kopanas john-Iau1QiYlxLpBDgjK7y7TUQ@public.gmane.org http://www.kopanas.com http://www.cusec.net http://www.soen.info --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---