Chunk are appended in the wrong order when the upload creates 10 chunks or more

[kerwan]

If you make an upload that leads to more than 10 chunks, they are appended in the wrong order.
I think this has to do with the sort function which does not take the part numbers into account correctly.
So file xxxxxxxx-10.part is appended before xxxxxxxx-2.part because of the sorting.

I have already applied the fix proposed in another thread by setting browser = true and session = false
for the filenames. So I assured my part filenames are consistent throught the whole upload.

I am using dropzone.js to handle the upload client side, and I checked that the chunk indexes, order and total are all correct.

Sorting the files with natural case seems to fix the problem.
In function buildFullFileFromChunks() from ParallelSave.php

$chunkFiles = $this->savedChunksFiles()->sort();

I replace with this

// Sorting file collection with natural case so xxxx-10.part does not get before xxxx-2.part
$chunkFiles = $this->savedChunksFiles();
$items = $chunkFiles->all();
natcasesort($items);
$chunkFiles = collect($items);

And it solves the problem.

If this a mistake from me that can be resolved without updating the plugin, I'll be happy to be directed to the solution.

Apart from this, it is an excellent plugin :-).

[pionl]

Sorry for the problem, my bad. You are correct. I thought that Collection->sort will handle this. I've tested the sorting without special chars and it sorted correctly. Didn't have to much to test it properly - currently not using project that needs this 😣

I've implemented the change and its OK now 👍

New version is on the way.

[kerwan]

Great ! Thanks for your fast answer.

I'm using this for a project that will use various file sizes (from very small to a few GB) so I'll be happy to give feedback about this whenever I can.