On the other hand, there are limitations to GET that will not work with most HTML forms - that's why POST is used instead.
-Adrian --- On Mon, 1/19/09, Raj Saini <rajsa...@gmail.com> wrote: > From: Raj Saini <rajsa...@gmail.com> > Subject: Re: F5 ( refresh of browser ) causes another item to be added to the > cart > To: user@ofbiz.apache.org > Date: Monday, January 19, 2009, 7:25 PM > In HTTP protocol GET method is considered idempotent that is > multiple > calls to the same resource should result in the same > result. In Contrast > POST method is no idempotent and therefore if a URL with > POST method is > refreshed browsers will through a warning message. > > Therefore, we should use GET method for the safe operations > such as > fetching a list of records based on input parameters and > POST for > transaction which can change the state of application for > example > inserting a record in database. > > Thanks, > > Raj > > Adrian Crum wrote: > > Most browsers have a warning popup window that tells > the user that a screen refresh will result in reposting > data. Maybe you could supplement that with a similar warning > on the web page itself. > > > > -Adrian > > > > > > --- On Mon, 1/19/09, Rees Watkins > <gat.of...@yahoo.co.uk> wrote: > > > > > >> From: Rees Watkins <gat.of...@yahoo.co.uk> > >> Subject: Re: F5 ( refresh of browser ) causes > another item to be added to the cart > >> To: user@ofbiz.apache.org > >> Date: Monday, January 19, 2009, 11:13 AM > >> Hi > >> > >> I have customised ofbiz for the travel industry. I > do not > >> hold any > >> product. All product sold is reserved and booked > on a 3rd > >> party site. > >> Generally cancellation has heavy penalties. In the > even a > >> customer buys > >> an additional item by mistake one of the parties > will lose > >> 50 - 100% on > >> a refund. I would like to customise my ofbiz to > prevent > >> items been > >> added on refresh. Does anyone have any suggestion > or > >> comments on how > >> best to do this? > >> > >> Thanks > >> Rees > >> > > > > > > > > > >