On Sun, Apr 11, 2010 at 4:29 PM, Tim Chase <python.l...@tim.thechases.com>wrote:
> On 04/11/2010 02:53 PM, MRAB wrote: > >> Victor Subervi wrote: >> >>> Hi; >>> I send variables to a script. The script adds appropriate lines into a >>> database of an order to my shopping cart. When I refresh the screen, as >>> no doubt some customers will do, it re-ads those orders. Now, I can >>> delete them, but that's not the point. I don't want it to re-ad the >>> orders. How do I skirt this problem? >>> >>> When you click on the Submit button on the form it should post the data, >> ie use method="post", not method="get". If refreshing causes it to >> re-submit, then you're using the wrong method. This is basic stuff. >> > > And if you do POST your data (which you should if you're attempting to > change state on the server), you should use a post/redirect/get pattern[1]. > This will prevent the browser from giving the "you've already submitted > this data; do you want to resubmit it?" message that most should give you if > you refresh a POST'ed page. > > And therein demonstrates the need to know HTTP as mentioned in my previous > reply to you (VS, not MRAB). > Man, I just forget this stuff. Dunno why. Yeah, just set a var in the URL of the post. Right. Sorry. Thanks. beno
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