Re: Problems when user hit back
This WebDNA talk-list message is from 2000
It keeps the original formatting.
numero = 34522
interpreted = N
texte = Do you have an example of the code?-RodolfoEl 7/11/00 11:30 AM, Sam Lewis sam@samLewis.com escribió:>> The only way to safely deal with it is to design your site so that the >> user never wants to use the Back button. ;~( The issue is that when the >> user goes back, the browser resubmits the command to add the last line >> item. >> >> If you can guarantee that there will never be more than one line with >> a given SKU, you can write a small loop to check for duplicates and >> forbid the subsequent adds. This really only works well if you are >> using contexts to add to the cart, instead of commands. > > > I deal with it by adding a rn=[random] to all of my links. On the > shopping cart page I set a header to the rn value the first time > through. Then on subsequent hits to that page I check to see if rn > equals my header value if so then the user either hit reload or back > so I don't add the item to the cart again. For every hit to the cart > page that has a unique rn value I set my header to that value to > check on the next hit. ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list
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Do you have an example of the code?-RodolfoEl 7/11/00 11:30 AM, Sam Lewis sam@samLewis.com escribió:>> The only way to safely deal with it is to design your site so that the >> user never wants to use the Back button. ;~( The issue is that when the >> user goes back, the browser resubmits the command to add the last line >> item. >> >> If you can guarantee that there will never be more than one line with >> a given SKU, you can write a small loop to check for duplicates and >> forbid the subsequent adds. This really only works well if you are >> using contexts to add to the cart, instead of commands. > > > I deal with it by adding a rn=[random] to all of my links. On the > shopping cart page I set a header to the rn value the first time > through. Then on subsequent hits to that page I check to see if rn > equals my header value if so then the user either hit reload or back > so I don't add the item to the cart again. For every hit to the cart > page that has a unique rn value I set my header to that value to > check on the next hit. ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://search.smithmicro.com/
Rodolfo de la Garza
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