Refactor mixin to avoid specifying model type manually

src/backend/InvenTree/InvenTree/api.py

@@ -603,8 +603,6 @@ class BulkUpdateMixin(BulkOperationMixin):
 class ParameterListMixin:
     """Mixin class which supports filtering against parametric fields."""
 
-    parameter_model_class = None
-
     def filter_queryset(self, queryset):
         """Perform filtering against parametric fields."""
         import common.filters
@@ -616,11 +614,15 @@ class ParameterListMixin:
             queryset, self.request.query_params
         )
 
+        serializer_class = (
+            getattr(self, 'serializer_class', None) or self.get_serializer_class()
+        )
+
+        model_class = serializer_class.Meta.model
+
         # Apply ordering based on query parameter
         queryset = common.filters.order_by_parameter(
-            queryset,
-            self.parameter_model_class,
-            self.request.query_params.get('ordering', None),
+            queryset, model_class, self.request.query_params.get('ordering', None)
         )
 
         return queryset

src/backend/InvenTree/build/api.py

@@ -349,7 +349,6 @@ class BuildList(
     - POST: Create a new Build object
     """
 
-    parameter_model_class = Build
     output_options = BuildListOutputOptions
     filterset_class = BuildFilter
     filter_backends = SEARCH_ORDER_FILTER_ALIAS

src/backend/InvenTree/common/models.py

@@ -2442,7 +2442,7 @@ class ParameterTemplate(
                 choice_set.add(choice)
 
     def validate_unique(self, exclude=None):
-        """Ensure that PartParameterTemplates cannot be created with the same name.
+        """Ensure that ParameterTemplates cannot be created with the same name.
 
         This test should be case-insensitive (which the unique caveat does not cover).
         """

src/backend/InvenTree/company/api.py

@@ -60,7 +60,6 @@ class CompanyList(CompanyMixin, ParameterListMixin, DataExportViewMixin, ListCre
     - POST: Create a new Company object
     """
 
-    parameter_model_class = Company
     filter_backends = SEARCH_ORDER_FILTER
 
     filterset_fields = [
@@ -201,7 +200,6 @@ class ManufacturerPartList(
     - POST: Create a new ManufacturerPart object
     """
 
-    parameter_model_class = ManufacturerPart
     filterset_class = ManufacturerPartFilter
     filter_backends = SEARCH_ORDER_FILTER
     output_options = ManufacturerOutputOptions
@@ -352,7 +350,6 @@ class SupplierPartList(
     - POST: Create a new SupplierPart object
     """
 
-    parameter_model_class = SupplierPart
     filterset_class = SupplierPartFilter
     filter_backends = SEARCH_ORDER_FILTER_ALIAS
     output_options = SupplierPartOutputOptions

src/backend/InvenTree/order/api.py

@@ -392,7 +392,6 @@ class PurchaseOrderList(
     - POST: Create a new PurchaseOrder object
     """
 
-    parameter_model_class = models.PurchaseOrder
     filterset_class = PurchaseOrderFilter
     filter_backends = SEARCH_ORDER_FILTER_ALIAS
     output_options = PurchaseOrderOutputOptions
@@ -863,7 +862,6 @@ class SalesOrderList(
     - POST: Create a new SalesOrder
     """
 
-    parameter_model_class = models.SalesOrder
     filterset_class = SalesOrderFilter
     filter_backends = SEARCH_ORDER_FILTER_ALIAS
     output_options = SalesOrderOutputOptions
@@ -1537,7 +1535,6 @@ class ReturnOrderList(
 ):
     """API endpoint for accessing a list of ReturnOrder objects."""
 
-    parameter_model_class = models.ReturnOrder
     filterset_class = ReturnOrderFilter
     filter_backends = SEARCH_ORDER_FILTER_ALIAS
 

src/backend/InvenTree/part/api.py

@@ -1076,7 +1076,6 @@ class PartList(
 ):
     """API endpoint for accessing a list of Part objects, or creating a new Part instance."""
 
-    parameter_model_class = Part
     output_options = PartOutputOptions
     filterset_class = PartFilter
     is_create = True

src/backend/InvenTree/users/ruleset.py

@@ -40,7 +40,7 @@ RULESET_NAMES = [choice[0] for choice in RULESET_CHOICES]
 # Permission types available for each ruleset.
 RULESET_PERMISSIONS = ['view', 'add', 'change', 'delete']
 
-RULESET_CHANGE_INHERIT = [('part', 'partparameter'), ('part', 'bomitem')]
+RULESET_CHANGE_INHERIT = [('part', 'bomitem')]
 
 
 def get_ruleset_models() -> dict: