Add 'Tag' management (#4367)

* 'Tag' management
Fixes #83

* Add for ManufacturerPart, SupplierPart

* Add tags for StockLocation, StockItem

* fix serializer definition

* add migrations

* update pre-commit

* bump dependencies

* revert updates

* set version for bugbear

* remove bugbear

* readd bugbear remove isort

* and remove bugbear again

* remove bugbear

* make tag fields not required

* add ruleset

* Merge migrations

* fix migrations

* add unittest for detail

* test tag add

* order api

* reduce database access

* add tag modification test

* use overriden serializer to ensuer the manager is always available

* fix typo

* fix serializer

* increae query thershold by 1

* move tag serializer

* fix migrations

* content_types are changing between tests - removing them

* remove unneeded fixture

* Add basic docs

* bump API version

* add api access to the docs

* add python code

* Add tags to search and filters for all models

InvenTree/part/serializers.py

@@ -15,6 +15,7 @@ from django.utils.translation import gettext_lazy as _
 
 from rest_framework import serializers
 from sql_util.utils import SubqueryCount, SubquerySum
+from taggit.serializers import TagListSerializerField
 
 import common.models
 import company.models
@@ -31,8 +32,9 @@ from InvenTree.serializers import (DataFileExtractSerializer,
                                    InvenTreeDecimalField,
                                    InvenTreeImageSerializerField,
                                    InvenTreeModelSerializer,
-                                   InvenTreeMoneySerializer, RemoteImageMixin,
-                                   UserSerializer)
+                                   InvenTreeMoneySerializer,
+                                   InvenTreeTagModelSerializer,
+                                   RemoteImageMixin, UserSerializer)
 from InvenTree.status_codes import BuildStatus
 from InvenTree.tasks import offload_task
 
@@ -403,7 +405,7 @@ class InitialSupplierSerializer(serializers.Serializer):
         return data
 
 
-class PartSerializer(RemoteImageMixin, InvenTreeModelSerializer):
+class PartSerializer(RemoteImageMixin, InvenTreeTagModelSerializer):
     """Serializer for complete detail information of a part.
 
     Used when displaying all details of a single component.
@@ -464,13 +466,17 @@ class PartSerializer(RemoteImageMixin, InvenTreeModelSerializer):
             'duplicate',
             'initial_stock',
             'initial_supplier',
-            'copy_category_parameters'
+            'copy_category_parameters',
+
+            'tags',
         ]
 
         read_only_fields = [
             'barcode_hash',
         ]
 
+    tags = TagListSerializerField(required=False)
+
     def __init__(self, *args, **kwargs):
         """Custom initialization method for PartSerializer: