Pipelining broken

brianjlowry

This is an issue I can replicate on the site's demo here: http://datatables.net/examples/server_side/pipeline.html

Click on page 6 to force pipelining. Now click page 5. The paging loses the start position and begins from 0 again.

brianjlowry

I've fixed the bug. The pipeline.js file needs this code block replaced:

if ( requestStart < cacheLower ) {
            requestStart = requestStart - (requestLength*(conf.pages-1));

            if ( requestStart < 0 ) {
                requestStart = 0;
            }
        }

        cacheLower = requestStart;
        cacheUpper = requestStart + (requestLength * conf.pages);

with this:

if (requestStart < cacheLower) {
            cacheLower = requestStart - (requestLength * (conf.pages - 1));

            if (cacheLower < 0) {
                cacheLower = 0;
            }
        } else {
            cacheLower = requestStart;
        }

        cacheUpper = cacheLower + (requestLength * conf.pages);

allan

Hi,

Thanks for flagging this up and the fix. I've put in a slightly different fix actually, as I think the problem was more in how retrieved data was handled: https://github.com/DataTables/DataTablesSrc/commit/76ef32a31472 . Would interested to hear how you get on with it.

Thanks,
Allan