Refactor states/status (#4857)

* add file for states

* move general definition out

* add some tests and docs

* add tests for invalid definitions

* make status_label tag generic

* move templatetags

* remove unused tag

* rename test file

* make status label a lookup

* rename tags

* move import structure

* add missing tag

* collect states dynamically

* fix context function

* move api function out

* add tests for tags

* rename tests

* refactor imports

* Add test for API function

* improve errors and add tests for imporved errors

* make test calls simpler

* refactor definitions to use enums

* switch to enum

* refactor definitions to use enums

* fix lookup

* fix tag name

* make _TAG lookup a function

* cleanup BaseEnum

* make _TAG definition simpler

* restructure status codes to enum

* reduce LoC

* type status codes as int

* add specific function for template context

* Add definition for lookups

* fix filter lookup

* TEST: "fix" action lookup

* Add missing migrations

* Make all group code references explict

* change default on models to value

* switch to IntEnum

* move groups into a seperate class

* only request _TAG if it exsists

* use value and list

* use dedicated groups

* fix stock assigment

* fix order code

* more fixes

* fix borked change

* fix render lookup

* add group

* fix import

* fix syntax

* clenup

* fix migrations

* fix typo

* fix wrong value usage

* fix test

* remove group section

* remove group section

* add more test cases

* Add more docstring

* move choices out of migrations

* change import ordeR?

* last try before I revert

* Update part.migrations.0112

- Add custom migration class which handles errors

* Add unit test for migration

- Ensure that the new fields are added to the model

* Update reference to PR

---------

Co-authored-by: Oliver Walters <oliver.henry.walters@gmail.com>

InvenTree/stock/test_api.py

@@ -385,11 +385,11 @@ class StockItemListTest(StockAPITestCase):
     def test_filter_by_status(self):
         """Filter StockItem by 'status' field."""
         codes = {
-            StockStatus.OK: 27,
-            StockStatus.DESTROYED: 1,
-            StockStatus.LOST: 1,
-            StockStatus.DAMAGED: 0,
-            StockStatus.REJECTED: 0,
+            StockStatus.OK.value: 27,
+            StockStatus.DESTROYED.value: 1,
+            StockStatus.LOST.value: 1,
+            StockStatus.DAMAGED.value: 0,
+            StockStatus.REJECTED.value: 0,
         }
 
         for code in codes.keys():
@@ -1465,7 +1465,7 @@ class StockAssignTest(StockAPITestCase):
 
         stock_item = StockItem.objects.create(
             part=part.models.Part.objects.get(pk=1),
-            status=StockStatus.DESTROYED,
+            status=StockStatus.DESTROYED.value,
             quantity=5,
         )