Fix sorting by location in stock item table

[sur5r]

Currently, when sorting the stock item table by location, it gets sorted by location id.

This changes the sorting criterion to pathstring.

[SchrodingersGat]

@sur5r I would have expected this to be tacked at the api level, not at the db level. Have you confirmed if this works for both ascending / descending ordering?

[sur5r]

Yes it works in both directions. My first attempt was [ 'level', 'name', ] but this lead to wrong results.

I tried to add this at the API level but failed to understand how it works and whether there is a corresponding place at all.

[SchrodingersGat]

@sur5r there is a place, specifically:

InvenTree/InvenTree/stock/api.py

Line 1007 in 2ffd235

'stock': ['quantity', 'serial_int', 'serial'],

You could add a line as follows:

"location": "location__pathstring",

to switch the ordering type for the location field

Changing this at the database level may have some unintended consequences,

[sur5r]

Ah, that was non-obvious to me. I tried it and it looks good to me.

[SchrodingersGat]

Yah the API functionality has a few subtleties - the reassignment of ordering fields is one of the more complex ones