Barcodes and user information

kpowning

We are looking at having a ticket with a barcode on it for a certain user. Once the barcode is scanned this should create basically a session for this user where then following barcode scans will pass information within that barcode to that users account. But once another tickets barcode is scanned, this current session is killed and a new session is created for this next ticket. Is this possible? Does anybody have any ideas how to manipulate this? I appreciate any feedback, ideas, etc in regards to this.

Weedpacket

Do it the same way you destroy and create sessions in any other circumstance. The fact that it's because of scanning a barcode should be irrelevant.

kpowning

Weedpacket - Correct, but if use scan a ticket and it creates a session for that userid, when you scan lets say products then their interested in, how can you pass that this product is for this user without adding the userid into each barcode for each product? I guess that's were it is confusing. And how would you be able to do this correctly for multiple scanners at the same time doing multiple tickets and items? Thanks for your help on this.

traq

This

kpowning;11035847 wrote:
… But once another tickets barcode is scanned, this current session is killed and a new session is created for this next ticket.

Seems to contradict this

kpowning;11035853 wrote:
but if use scan a ticket and it creates a session for that userid, when you scan lets say products then their interested in, how can you pass that this product is for this user without adding the userid into each barcode for each product?

Do you want the session to persist, or do you want a new session for each scan?

kpowning

Traq,

I see your point 🙂 Ok so here is how I'm looking at it. Basically if a barcode is scanned and a userid exists with a url example: http://www.thiswebsite.com?userid=1 then the script will first check if a session exists for this userid if not, it will create the session/cookie for this userid. Then they can scan products that have barcodes with another url within the barcode: http://www.thiswebsite.com?product=101 and while the session/cookie is still open each additional product scanned will update the database for this user each product scanned. Once a different ticket is scanned then the session is updated to the new userid and so forth. Is this how you would manage this? Thanks 🙂

traq

The easiest way would be to start a session when you get a request with a userid, and then assume subsequent requests in the same session are for the same user. When you get another userid, destroy the earlier session and start a new one.

It would be much more reliable, however, to include the userid on all requests. How to do that would likely depend on your scanning device.