What is the best way to solve following problem: A form lets a user add a row of data, and this row is identified by an id rownumber, which is written as a PTV, and incremented by 1 with every form submission.
Now two (or more) users submit this form at the same time more or less exactly (less than 2 seconds of each other). How can it be guaranteed that each row will be allocated a correctly increased rownumber? I tried to force the processing script to read the rownumber PTV when the form is processed, rather than using the PTV as given when the page loads. This helps for the cases where the form submissions takes place some seconds or more apart, i.e. when the page is written fully before the second submission takes place. But near simultaneous submissions still end up with duplicated rownumbers. Any ideas are much appreciated! Thanks! Hans _______________________________________________ pmwiki-devel mailing list pmwiki-devel@pmichaud.com http://www.pmichaud.com/mailman/listinfo/pmwiki-devel
