Parameter filtering (#4823)

* adds new field 'parameter type' to PartParameterTemplate model

* Move part parameter settings onto their own page

* Add "choices" and "regex" template types

* Adds validation for PartParameter based on template type

* javascript cleanup

* Fix for serializers.py

* Add unit testing for parameter validation

* Add filters

* Rename "type" field to "param_type"

- Should have seen that one coming

* Coerce 'boolean' value to True/False

* table update

* js linting

* Add requirement for "pint" package

* Add validator for physical unit types

- Revert a previous migration which adds "parameter type" and "validator" fields
- These will get implemented later, too much scope creep for this PR
- Add unit test for validation of "units" field

* Update PartParameter model

- Add data_numeric field (will be used later)
- Add MinLengthValidator to data field

* Run validation for part parameter data

- Ensure it can be converted to internal units

* Update admin interface to display partparameter values inline for a part

* Adds validation of part parameter data value

- Also converts to base units, and stores as "numeric" value
- Display "numeric" value in tables
- Create new file conversion.py for data conversion

* Update unit tests and fix some bugs

* Update docstring

* Add units to parameter columns in parameteric part table

* Allow part list to be ordered by a particular parameter value

- Annotate queryset with new "order_by_parameter" method
- Skeleton method for future work

* Bump API version

* Adds unit testing for sorting parts by parameter value

* Update historical data migrations

- Turns out RunPython.noop is a thing?

* Cache the unit registry

- Creating the unit registry takes a significant amount of time
- Construct when first called, and then cache for subsequent hits
- Massive improvement in performance

* Throw error on empty values when converting between units

* Data migration for converting existing part parameter values

* Handle more error cases

* Show parameteric table on top-level part page too

* Unit test for data migration

* Update credits in docs

* Improved error checking

* WIP docs updates

* Fix parameteric table filtering

* remove zoom property

* Fix for import path

* Update parameter docs

* Run background task to rebuild parameters when template changes

* Make "data_numeric" field nullable

- Defaulting to zero is not appropriate, as the actual value may be zero
- Sorting still seems to work just fine

* Fixes for unit test

* More unit test fixes

* Further fixes for unit tests

---------

Co-authored-by: Matthias Mair <code@mjmair.com>

InvenTree/order/migrations/0052_auto_20211014_0631.py

@@ -52,13 +52,6 @@ def build_refs(apps, schema_editor):
         order.save()
 
 
-def unbuild_refs(apps, schema_editor):  # pragma: no cover
-    """
-    Provided only for reverse migration compatibility
-    """
-    pass
-
-
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -67,8 +60,5 @@ class Migration(migrations.Migration):
 
 
     operations = [
-        migrations.RunPython(
-            build_refs,
-            reverse_code=unbuild_refs
-        )
+        migrations.RunPython(build_refs, reverse_code=migrations.RunPython.noop)
     ]

InvenTree/order/migrations/0058_auto_20211126_1210.py

@@ -40,14 +40,6 @@ def calculate_shipped_quantity(apps, schema_editor):
         item.save()
 
 
-def reverse_calculate_shipped_quantity(apps, schema_editor):  # pragma: no cover
-    """
-    Provided only for reverse migration compatibility.
-    This function does nothing.
-    """
-    pass
-
-
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -57,6 +49,6 @@ class Migration(migrations.Migration):
     operations = [
         migrations.RunPython(
             calculate_shipped_quantity,
-            reverse_code=reverse_calculate_shipped_quantity
+            reverse_code=migrations.RunPython.noop
         )
     ]

InvenTree/order/migrations/0074_auto_20220709_0108.py

@@ -84,11 +84,6 @@ def update_purchaseorder_reference(apps, schema_editor):
         print(f"Updated reference field for {n} PurchaseOrder objects")
 
 
-def nop(apps, schema_editor):
-    """Empty function for reverse migration"""
-    pass
-
-
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -98,10 +93,10 @@ class Migration(migrations.Migration):
     operations = [
         migrations.RunPython(
             update_salesorder_reference,
-            reverse_code=nop,
+            reverse_code=migrations.RunPython.noop,
         ),
         migrations.RunPython(
             update_purchaseorder_reference,
-            reverse_code=nop,
+            reverse_code=migrations.RunPython.noop,
         )
     ]

InvenTree/order/migrations/0079_auto_20230304_0904.py

@@ -108,11 +108,6 @@ def update_sales_order_price(apps, schema_editor):
         logger.info(f"'total_price' field could not be updated for {invalid_count} SalesOrder instances")
 
 
-def reverse(apps, schema_editor):
-    """Reverse migration (does nothing)"""
-    pass
-
-
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -122,10 +117,10 @@ class Migration(migrations.Migration):
     operations = [
         migrations.RunPython(
             update_purchase_order_price,
-            reverse_code=reverse
+            reverse_code=migrations.RunPython.noop
         ),
         migrations.RunPython(
             update_sales_order_price,
-            reverse_code=reverse,
+            reverse_code=migrations.RunPython.noop,
         )
     ]