Merge remote-tracking branch 'inventree/master' into webp-support

.github/workflows/qc_checks.yaml

@@ -12,7 +12,7 @@ on:
       - l10*
 
 env:
-  python_version: 3.8
+  python_version: 3.9
   node_version: 16
 
   server_start_sleep: 60

.github/workflows/stale.yml

@@ -19,7 +19,7 @@ jobs:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         stale-issue-message: 'This issue seems stale. Please react to show this is still important.'
         stale-pr-message: 'This PR seems stale. Please react to show this is still important.'
-        stale-issue-label: 'no-activity'
+        stale-issue-label: 'inactive'
-        stale-pr-label: 'no-activity'
+        stale-pr-label: 'inactive'
         start-date: '2022-01-01'
         exempt-all-milestones: true

.github/workflows/translations.yml

@@ -21,10 +21,10 @@ jobs:
     steps:
       - name: Checkout Code
         uses: actions/checkout@v2
-      - name: Set up Python 3.7
+      - name: Set up Python 3.9
         uses: actions/setup-python@v1
         with:
-          python-version: 3.7
+          python-version: 3.9
       - name: Install Dependencies
         run: |
             sudo apt-get update

.github/workflows/welcome.yml

@@ -16,5 +16,10 @@ jobs:
     - uses: actions/first-interaction@v1
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
-        issue-message: 'Welcome to InvenTree! Please check the [contributing docs](https://inventree.readthedocs.io/en/latest/contribute/) on how to help.\nIf you experience setup / install issues please read all [install docs]( https://inventree.readthedocs.io/en/latest/start/intro/).'
+        issue-message: |
-        pr-message: 'This is your first PR, welcome!\nPlease check [Contributing](https://github.com/inventree/InvenTree/blob/master/CONTRIBUTING.md) to make sure your submission fits our general code-style and workflow.\nMake sure to document why this PR is needed and to link connected issues so we can review it faster.'
+          Welcome to InvenTree! Please check the [contributing docs](https://inventree.readthedocs.io/en/latest/contribute/) on how to help.
+          If you experience setup / install issues please read all [install docs]( https://inventree.readthedocs.io/en/latest/start/intro/).
+        pr-message: |
+          This is your first PR, welcome!
+          Please check [Contributing](https://github.com/inventree/InvenTree/blob/master/CONTRIBUTING.md) to make sure your submission fits our general code-style and workflow.
+          Make sure to document why this PR is needed and to link connected issues so we can review it faster.

InvenTree/InvenTree/api.py

@@ -2,9 +2,6 @@
 Main JSON interface views
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.utils.translation import gettext_lazy as _
 from django.conf import settings
 from django.http import JsonResponse
@@ -13,15 +10,11 @@ from django_filters.rest_framework import DjangoFilterBackend
 from rest_framework import filters
 
 from rest_framework import permissions
-from rest_framework.response import Response
-from rest_framework.views import APIView
 
 from .views import AjaxView
 from .version import inventreeVersion, inventreeApiVersion, inventreeInstanceName
 from .status import is_worker_running
 
-from plugin import registry
-
 
 class InfoView(AjaxView):
     """ Simple JSON endpoint for InvenTree information.
@@ -119,40 +112,3 @@ class AttachmentMixin:
         attachment = serializer.save()
         attachment.user = self.request.user
         attachment.save()
-
-
-class ActionPluginView(APIView):
-    """
-    Endpoint for running custom action plugins.
-    """
-
-    permission_classes = [
-        permissions.IsAuthenticated,
-    ]
-
-    def post(self, request, *args, **kwargs):
-
-        action = request.data.get('action', None)
-
-        data = request.data.get('data', None)
-
-        if action is None:
-            return Response({
-                'error': _("No action specified")
-            })
-
-        action_plugins = registry.with_mixin('action')
-        for plugin in action_plugins:
-            if plugin.action_name() == action:
-                # TODO @matmair use easier syntax once InvenTree 0.7.0 is released
-                plugin.init(request.user, data=data)
-
-                plugin.perform_action()
-
-                return Response(plugin.get_response())
-
-        # If we got to here, no matching action was found
-        return Response({
-            'error': _("No matching action found"),
-            "action": action,
-        })

InvenTree/InvenTree/api_tester.py

@@ -142,6 +142,18 @@ class InvenTreeAPITestCase(APITestCase):
 
         return response
 
+    def put(self, url, data, expected_code=None, format='json'):
+        """
+        Issue a PUT request
+        """
+
+        response = self.client.put(url, data=data, format=format)
+
+        if expected_code is not None:
+            self.assertEqual(response.status_code, expected_code)
+
+        return response
+
     def options(self, url, expected_code=None):
         """
         Issue an OPTIONS request

InvenTree/InvenTree/api_version.py

@@ -4,11 +4,16 @@ InvenTree API version information
 
 
 # InvenTree API version
-INVENTREE_API_VERSION = 48
+INVENTREE_API_VERSION = 49
 
 """
 Increment this API version number whenever there is a significant change to the API that any clients need to know about
 
+v49 -> 2022-05-09 : https://github.com/inventree/InvenTree/pull/2957
+    - Allows filtering of plugin list by 'active' status
+    - Allows filtering of plugin list by 'mixin' support
+    - Adds endpoint to "identify" or "locate" stock items and locations (using plugins)
+
 v48 -> 2022-05-12 : https://github.com/inventree/InvenTree/pull/2977
     - Adds "export to file" functionality for PurchaseOrder API endpoint
     - Adds "export to file" functionality for SalesOrder API endpoint

InvenTree/InvenTree/apps.py

@@ -131,7 +131,7 @@ class InvenTreeConfig(AppConfig):
                 update = True
 
             # Backend currency has changed?
-            if not base_currency == backend.base_currency:
+            if base_currency != backend.base_currency:
                 logger.info(f"Base currency changed from {backend.base_currency} to {base_currency}")
                 update = True
 
@@ -197,8 +197,6 @@ class InvenTreeConfig(AppConfig):
                     logger.info(f'User {str(new_user)} was created!')
         except IntegrityError as _e:
             logger.warning(f'The user "{add_user}" could not be created due to the following error:\n{str(_e)}')
-            if settings.TESTING_ENV:
-                raise _e
 
         # do not try again
         settings.USER_ADDED = True

InvenTree/InvenTree/fields.py

@@ -1,7 +1,5 @@
 """ Custom fields used in InvenTree """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
 import sys
 
 from .validators import allowable_url_schemes

InvenTree/InvenTree/filters.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from rest_framework.filters import OrderingFilter
 
 

InvenTree/InvenTree/forms.py

@@ -2,8 +2,6 @@
 Helper forms which subclass Django forms to provide additional functionality
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
 from urllib.parse import urlencode
 import logging
 

InvenTree/InvenTree/helpers.py

@@ -224,7 +224,7 @@ def increment(n):
     groups = result.groups()
 
     # If we cannot match the regex, then simply return the provided value
-    if not len(groups) == 2:
+    if len(groups) != 2:
         return value
 
     prefix, number = groups
@@ -536,7 +536,7 @@ def extract_serial_numbers(serials, expected_quantity, next_number: int):
         raise ValidationError([_("No serial numbers found")])
 
     # The number of extracted serial numbers must match the expected quantity
-    if not expected_quantity == len(numbers):
+    if expected_quantity != len(numbers):
         raise ValidationError([_("Number of unique serial numbers ({s}) must match quantity ({q})").format(s=len(numbers), q=expected_quantity)])
 
     return numbers
@@ -575,7 +575,7 @@ def validateFilterString(value, model=None):
 
         pair = group.split('=')
 
-        if not len(pair) == 2:
+        if len(pair) != 2:
             raise ValidationError(
                 "Invalid group: {g}".format(g=group)
             )

InvenTree/InvenTree/metadata.py

@@ -1,7 +1,3 @@
-# -*- coding: utf-8 -*-
-
-from __future__ import unicode_literals
-
 import logging
 
 from rest_framework import serializers
@@ -250,7 +246,7 @@ class InvenTreeMetadata(SimpleMetadata):
         field_info = super().get_field_info(field)
 
         # If a default value is specified for the serializer field, add it!
-        if 'default' not in field_info and not field.default == empty:
+        if 'default' not in field_info and field.default != empty:
             field_info['default'] = field.get_default()
 
         # Force non-nullable fields to read as "required"

InvenTree/InvenTree/models.py

@@ -2,8 +2,6 @@
 Generic models which provide extra functionality over base Django model types.
 """
 
-from __future__ import unicode_literals
-
 import re
 import os
 import logging
@@ -259,7 +257,7 @@ class InvenTreeAttachment(models.Model):
         new_file = os.path.abspath(new_file)
 
         # Check that there are no directory tricks going on...
-        if not os.path.dirname(new_file) == attachment_dir:
+        if os.path.dirname(new_file) != attachment_dir:
             logger.error(f"Attempted to rename attachment outside valid directory: '{new_file}'")
             raise ValidationError(_("Invalid attachment directory"))
 

InvenTree/InvenTree/permissions.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from rest_framework import permissions
 
 import users.models

InvenTree/InvenTree/serializers.py

@@ -2,9 +2,6 @@
 Serializers used in various InvenTree apps
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import os
 import tablib
 

InvenTree/InvenTree/settings.py

@@ -658,7 +658,7 @@ AUTH_PASSWORD_VALIDATORS = [
 
 EXTRA_URL_SCHEMES = CONFIG.get('extra_url_schemes', [])
 
-if not type(EXTRA_URL_SCHEMES) in [list]:  # pragma: no cover
+if type(EXTRA_URL_SCHEMES) not in [list]:  # pragma: no cover
     logger.warning("extra_url_schemes not correctly formatted")
     EXTRA_URL_SCHEMES = []
 

InvenTree/InvenTree/tasks.py

@@ -1,8 +1,6 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import re
 import json
+import warnings
 import requests
 import logging
 
@@ -11,6 +9,8 @@ from django.utils import timezone
 
 from django.core.exceptions import AppRegistryNotReady
 from django.db.utils import OperationalError, ProgrammingError
+from django.core import mail as django_mail
+from django.conf import settings
 
 
 logger = logging.getLogger("inventree")
@@ -52,6 +52,15 @@ def schedule_task(taskname, **kwargs):
         pass
 
 
+def raise_warning(msg):
+    """Log and raise a warning"""
+    logger.warning(msg)
+
+    # If testing is running raise a warning that can be asserted
+    if settings.TESTING:
+        warnings.warn(msg)
+
+
 def offload_task(taskname, *args, force_sync=False, **kwargs):
     """
         Create an AsyncTask if workers are running.
@@ -67,28 +76,38 @@ def offload_task(taskname, *args, force_sync=False, **kwargs):
 
         import importlib
         from InvenTree.status import is_worker_running
+    except AppRegistryNotReady:  # pragma: no cover
+        logger.warning(f"Could not offload task '{taskname}' - app registry not ready")
+        return
+    except (OperationalError, ProgrammingError):  # pragma: no cover
+        raise_warning(f"Could not offload task '{taskname}' - database not ready")
 
-        if is_worker_running() and not force_sync:  # pragma: no cover
+    if is_worker_running() and not force_sync:  # pragma: no cover
-            # Running as asynchronous task
+        # Running as asynchronous task
-            try:
+        try:
-                task = AsyncTask(taskname, *args, **kwargs)
+            task = AsyncTask(taskname, *args, **kwargs)
-                task.run()
+            task.run()
-            except ImportError:
+        except ImportError:
-                logger.warning(f"WARNING: '{taskname}' not started - Function not found")
+            raise_warning(f"WARNING: '{taskname}' not started - Function not found")
+    else:
+
+        if callable(taskname):
+            # function was passed - use that
+            _func = taskname
         else:
             # Split path
             try:
                 app, mod, func = taskname.split('.')
                 app_mod = app + '.' + mod
             except ValueError:
-                logger.warning(f"WARNING: '{taskname}' not started - Malformed function path")
+                raise_warning(f"WARNING: '{taskname}' not started - Malformed function path")
                 return
 
             # Import module from app
             try:
                 _mod = importlib.import_module(app_mod)
             except ModuleNotFoundError:
-                logger.warning(f"WARNING: '{taskname}' not started - No module named '{app_mod}'")
+                raise_warning(f"WARNING: '{taskname}' not started - No module named '{app_mod}'")
                 return
 
             # Retrieve function
@@ -102,17 +121,11 @@ def offload_task(taskname, *args, force_sync=False, **kwargs):
                 if not _func:
                     _func = eval(func)  # pragma: no cover
             except NameError:
-                logger.warning(f"WARNING: '{taskname}' not started - No function named '{func}'")
+                raise_warning(f"WARNING: '{taskname}' not started - No function named '{func}'")
                 return
 
-            # Workers are not running: run it as synchronous task
+        # Workers are not running: run it as synchronous task
-            _func(*args, **kwargs)
+        _func(*args, **kwargs)
-
-    except AppRegistryNotReady:  # pragma: no cover
-        logger.warning(f"Could not offload task '{taskname}' - app registry not ready")
-        return
-    except (OperationalError, ProgrammingError):  # pragma: no cover
-        logger.warning(f"Could not offload task '{taskname}' - database not ready")
 
 
 def heartbeat():
@@ -126,8 +139,8 @@ def heartbeat():
 
     try:
         from django_q.models import Success
-        logger.info("Could not perform heartbeat task - App registry not ready")
     except AppRegistryNotReady:  # pragma: no cover
+        logger.info("Could not perform heartbeat task - App registry not ready")
         return
 
     threshold = timezone.now() - timedelta(minutes=30)
@@ -204,26 +217,26 @@ def check_for_updates():
 
     response = requests.get('https://api.github.com/repos/inventree/inventree/releases/latest')
 
-    if not response.status_code == 200:
+    if response.status_code != 200:
-        raise ValueError(f'Unexpected status code from GitHub API: {response.status_code}')
+        raise ValueError(f'Unexpected status code from GitHub API: {response.status_code}')  # pragma: no cover
 
     data = json.loads(response.text)
 
     tag = data.get('tag_name', None)
 
     if not tag:
-        raise ValueError("'tag_name' missing from GitHub response")
+        raise ValueError("'tag_name' missing from GitHub response")  # pragma: no cover
 
     match = re.match(r"^.*(\d+)\.(\d+)\.(\d+).*$", tag)
 
-    if not len(match.groups()) == 3:
+    if len(match.groups()) != 3:  # pragma: no cover
         logger.warning(f"Version '{tag}' did not match expected pattern")
         return
 
     latest_version = [int(x) for x in match.groups()]
 
-    if not len(latest_version) == 3:
+    if len(latest_version) != 3:
-        raise ValueError(f"Version '{tag}' is not correct format")
+        raise ValueError(f"Version '{tag}' is not correct format")  # pragma: no cover
 
     logger.info(f"Latest InvenTree version: '{tag}'")
 
@@ -288,7 +301,7 @@ def send_email(subject, body, recipients, from_email=None, html_message=None):
         recipients = [recipients]
 
     offload_task(
-        'django.core.mail.send_mail',
+        django_mail.send_mail,
         subject,
         body,
         from_email,

InvenTree/InvenTree/test_api.py

@@ -96,6 +96,12 @@ class HTMLAPITests(TestCase):
         response = self.client.get(url, HTTP_ACCEPT='text/html')
         self.assertEqual(response.status_code, 200)
 
+    def test_not_found(self):
+        """Test that the NotFoundView is working"""
+
+        response = self.client.get('/api/anc')
+        self.assertEqual(response.status_code, 404)
+
 
 class APITests(InvenTreeAPITestCase):
     """ Tests for the InvenTree API """

InvenTree/InvenTree/test_tasks.py

@@ -2,10 +2,20 @@
 Unit tests for task management
 """
 
+from datetime import timedelta
+
+from django.utils import timezone
 from django.test import TestCase
 from django_q.models import Schedule
 
+from error_report.models import Error
+
 import InvenTree.tasks
+from common.models import InvenTreeSetting
+
+
+threshold = timezone.now() - timedelta(days=30)
+threshold_low = threshold - timedelta(days=1)
 
 
 class ScheduledTaskTests(TestCase):
@@ -41,3 +51,79 @@ class ScheduledTaskTests(TestCase):
         # But the 'minutes' should have been updated
         t = Schedule.objects.get(func=task)
         self.assertEqual(t.minutes, 5)
+
+
+def get_result():
+    """Demo function for test_offloading"""
+    return 'abc'
+
+
+class InvenTreeTaskTests(TestCase):
+    """Unit tests for tasks"""
+
+    def test_offloading(self):
+        """Test task offloading"""
+
+        # Run with function ref
+        InvenTree.tasks.offload_task(get_result)
+
+        # Run with string ref
+        InvenTree.tasks.offload_task('InvenTree.test_tasks.get_result')
+
+        # Error runs
+        # Malformed taskname
+        with self.assertWarnsMessage(UserWarning, "WARNING: 'InvenTree' not started - Malformed function path"):
+            InvenTree.tasks.offload_task('InvenTree')
+
+        # Non exsistent app
+        with self.assertWarnsMessage(UserWarning, "WARNING: 'InvenTreeABC.test_tasks.doesnotmatter' not started - No module named 'InvenTreeABC.test_tasks'"):
+            InvenTree.tasks.offload_task('InvenTreeABC.test_tasks.doesnotmatter')
+
+        # Non exsistent function
+        with self.assertWarnsMessage(UserWarning, "WARNING: 'InvenTree.test_tasks.doesnotexsist' not started - No function named 'doesnotexsist'"):
+            InvenTree.tasks.offload_task('InvenTree.test_tasks.doesnotexsist')
+
+    def test_task_hearbeat(self):
+        """Test the task heartbeat"""
+        InvenTree.tasks.offload_task(InvenTree.tasks.heartbeat)
+
+    def test_task_delete_successful_tasks(self):
+        """Test the task delete_successful_tasks"""
+        from django_q.models import Success
+
+        Success.objects.create(name='abc', func='abc', stopped=threshold, started=threshold_low)
+        InvenTree.tasks.offload_task(InvenTree.tasks.delete_successful_tasks)
+        results = Success.objects.filter(started__lte=threshold)
+        self.assertEqual(len(results), 0)
+
+    def test_task_delete_old_error_logs(self):
+        """Test the task delete_old_error_logs"""
+
+        # Create error
+        error_obj = Error.objects.create()
+        error_obj.when = threshold_low
+        error_obj.save()
+
+        # Check that it is not empty
+        errors = Error.objects.filter(when__lte=threshold,)
+        self.assertNotEqual(len(errors), 0)
+
+        # Run action
+        InvenTree.tasks.offload_task(InvenTree.tasks.delete_old_error_logs)
+
+        # Check that it is empty again
+        errors = Error.objects.filter(when__lte=threshold,)
+        self.assertEqual(len(errors), 0)
+
+    def test_task_check_for_updates(self):
+        """Test the task check_for_updates"""
+        # Check that setting should be empty
+        self.assertEqual(InvenTreeSetting.get_setting('INVENTREE_LATEST_VERSION'), '')
+
+        # Get new version
+        InvenTree.tasks.offload_task(InvenTree.tasks.check_for_updates)
+
+        # Check that setting is not empty
+        response = InvenTreeSetting.get_setting('INVENTREE_LATEST_VERSION')
+        self.assertNotEqual(response, '')
+        self.assertTrue(bool(response))

InvenTree/InvenTree/tests.py

@@ -451,6 +451,11 @@ class TestSettings(TestCase):
         self.user_mdl = get_user_model()
         self.env = support.EnvironmentVarGuard()
 
+        # Create a user for auth
+        user = get_user_model()
+        self.user = user.objects.create_superuser('testuser1', 'test1@testing.com', 'password1')
+        self.client.login(username='testuser1', password='password1')
+
     def run_reload(self):
         from plugin import registry
 
@@ -467,23 +472,49 @@ class TestSettings(TestCase):
 
         # nothing set
         self.run_reload()
-        self.assertEqual(user_count(), 0)
+        self.assertEqual(user_count(), 1)
 
         # not enough set
         self.env.set('INVENTREE_ADMIN_USER', 'admin')  # set username
         self.run_reload()
-        self.assertEqual(user_count(), 0)
+        self.assertEqual(user_count(), 1)
 
         # enough set
         self.env.set('INVENTREE_ADMIN_USER', 'admin')  # set username
         self.env.set('INVENTREE_ADMIN_EMAIL', 'info@example.com')  # set email
         self.env.set('INVENTREE_ADMIN_PASSWORD', 'password123')  # set password
         self.run_reload()
-        self.assertEqual(user_count(), 1)
+        self.assertEqual(user_count(), 2)
+
+        # create user manually
+        self.user_mdl.objects.create_user('testuser', 'test@testing.com', 'password')
+        self.assertEqual(user_count(), 3)
+        # check it will not be created again
+        self.env.set('INVENTREE_ADMIN_USER', 'testuser')
+        self.env.set('INVENTREE_ADMIN_EMAIL', 'test@testing.com')
+        self.env.set('INVENTREE_ADMIN_PASSWORD', 'password')
+        self.run_reload()
+        self.assertEqual(user_count(), 3)
 
         # make sure to clean up
         settings.TESTING_ENV = False
 
+    def test_initial_install(self):
+        """Test if install of plugins on startup works"""
+        from plugin import registry
+
+        # Check an install run
+        response = registry.install_plugin_file()
+        self.assertEqual(response, 'first_run')
+
+        # Set dynamic setting to True and rerun to launch install
+        InvenTreeSetting.set_setting('PLUGIN_ON_STARTUP', True, self.user)
+        registry.reload_plugins()
+
+        # Check that there was anotehr run
+        response = registry.install_plugin_file()
+        self.assertEqual(response, True)
+
     def test_helpers_cfg_file(self):
         # normal run - not configured
         self.assertIn('InvenTree/InvenTree/config.yaml', config.get_config_file())

InvenTree/InvenTree/urls.py

@@ -27,7 +27,7 @@ from order.api import order_api_urls
 from label.api import label_api_urls
 from report.api import report_api_urls
 from plugin.api import plugin_api_urls
-from plugin.barcode import barcode_api_urls
+from users.api import user_urls
 
 from django.conf import settings
 from django.conf.urls.static import static
@@ -45,20 +45,11 @@ from .views import DynamicJsView
 from .views import NotificationsView
 
 from .api import InfoView, NotFoundView
-from .api import ActionPluginView
-
-from users.api import user_urls
 
 admin.site.site_header = "InvenTree Admin"
 
-apipatterns = []
 
-if settings.PLUGINS_ENABLED:
+apipatterns = [
-    apipatterns.append(
-        re_path(r'^plugin/', include(plugin_api_urls))
-    )
-
-apipatterns += [
     re_path(r'^settings/', include(settings_api_urls)),
     re_path(r'^part/', include(part_api_urls)),
     re_path(r'^bom/', include(bom_api_urls)),
@@ -68,13 +59,10 @@ apipatterns += [
     re_path(r'^order/', include(order_api_urls)),
     re_path(r'^label/', include(label_api_urls)),
     re_path(r'^report/', include(report_api_urls)),
-
-    # User URLs
     re_path(r'^user/', include(user_urls)),
 
     # Plugin endpoints
-    re_path(r'^action/', ActionPluginView.as_view(), name='api-action-plugin'),
+    path('', include(plugin_api_urls)),
-    re_path(r'^barcode/', include(barcode_api_urls)),
 
     # Webhook enpoint
     path('', include(common_api_urls)),

InvenTree/InvenTree/views.py

@@ -5,8 +5,6 @@ In particular these views provide base functionality for rendering Django forms
 as JSON objects and passing them to modal forms (using jQuery / bootstrap).
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
 import os
 import json
 
@@ -627,7 +625,7 @@ class SetPasswordView(AjaxUpdateView):
         if valid:
             # Passwords must match
 
-            if not p1 == p2:
+            if p1 != p2:
                 error = _('Password fields must match')
                 form.add_error('enter_password', error)
                 form.add_error('confirm_password', error)
@@ -797,13 +795,9 @@ class CurrencyRefreshView(RedirectView):
         On a POST request we will attempt to refresh the exchange rates
         """
 
-        from InvenTree.tasks import offload_task
+        from InvenTree.tasks import offload_task, update_exchange_rates
 
-        # Define associated task from InvenTree.tasks list of methods
+        offload_task(update_exchange_rates, force_sync=True)
-        taskname = 'InvenTree.tasks.update_exchange_rates'
-
-        # Run it
-        offload_task(taskname, force_sync=True)
 
         return redirect(reverse_lazy('settings'))
 

InvenTree/build/admin.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.contrib import admin
 
 from import_export.admin import ImportExportModelAdmin

InvenTree/build/api.py

@@ -2,9 +2,6 @@
 JSON API for the Build app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.urls import include, re_path
 
 from rest_framework import filters, generics
@@ -285,6 +282,13 @@ class BuildOutputDelete(BuildOrderContextMixin, generics.CreateAPIView):
     API endpoint for deleting multiple build outputs
     """
 
+    def get_serializer_context(self):
+        ctx = super().get_serializer_context()
+
+        ctx['to_complete'] = False
+
+        return ctx
+
     queryset = Build.objects.none()
 
     serializer_class = build.serializers.BuildOutputDeleteSerializer

InvenTree/build/apps.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.apps import AppConfig
 
 

InvenTree/build/forms.py

@@ -1,7 +0,0 @@
-"""
-Django Forms for interacting with Build objects
-"""
-
-# -*- coding: utf-8 -*-
-
-from __future__ import unicode_literals

InvenTree/build/models.py

@@ -2,8 +2,6 @@
 Build database model definitions
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
 import decimal
 
 import os
@@ -777,7 +775,7 @@ class Build(MPTTModel, ReferenceIndexingMixin):
         if not output.is_building:
             raise ValidationError(_("Build output is already completed"))
 
-        if not output.build == self:
+        if output.build != self:
             raise ValidationError(_("Build output does not match Build Order"))
 
         # Unallocate all build items against the output
@@ -1141,12 +1139,13 @@ def after_save_build(sender, instance: Build, created: bool, **kwargs):
     """
     Callback function to be executed after a Build instance is saved
     """
+    from . import tasks as build_tasks
 
     if created:
         # A new Build has just been created
 
         # Run checks on required parts
-        InvenTree.tasks.offload_task('build.tasks.check_build_stock', instance)
+        InvenTree.tasks.offload_task(build_tasks.check_build_stock, instance)
 
 
 class BuildOrderAttachment(InvenTreeAttachment):
@@ -1240,7 +1239,7 @@ class BuildItem(models.Model):
                 })
 
             # Quantity must be 1 for serialized stock
-            if self.stock_item.serialized and not self.quantity == 1:
+            if self.stock_item.serialized and self.quantity != 1:
                 raise ValidationError({
                     'quantity': _('Quantity must be 1 for serialized stock')
                 })

InvenTree/build/serializers.py

@@ -2,9 +2,6 @@
 JSON serializers for Build API
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.db import transaction
 from django.core.exceptions import ValidationError as DjangoValidationError
 from django.utils.translation import gettext_lazy as _
@@ -202,7 +199,7 @@ class BuildOutputCreateSerializer(serializers.Serializer):
 
     def validate_quantity(self, quantity):
 
-        if quantity < 0:
+        if quantity <= 0:
             raise ValidationError(_("Quantity must be greater than zero"))
 
         part = self.get_part()
@@ -212,7 +209,7 @@ class BuildOutputCreateSerializer(serializers.Serializer):
             if part.trackable:
                 raise ValidationError(_("Integer quantity required for trackable parts"))
 
-            if part.has_trackable_parts():
+            if part.has_trackable_parts:
                 raise ValidationError(_("Integer quantity required, as the bill of materials contains trackable parts"))
 
         return quantity
@@ -235,7 +232,6 @@ class BuildOutputCreateSerializer(serializers.Serializer):
 
         serial_numbers = serial_numbers.strip()
 
-        # TODO: Field level validation necessary here?
         return serial_numbers
 
     auto_allocate = serializers.BooleanField(

InvenTree/build/tasks.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from decimal import Decimal
 import logging
 

InvenTree/build/test_api.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from datetime import datetime, timedelta
 
 from django.urls import reverse
@@ -305,6 +302,215 @@ class BuildTest(BuildAPITest):
 
         self.assertEqual(bo.status, BuildStatus.CANCELLED)
 
+    def test_create_delete_output(self):
+        """
+        Test that we can create and delete build outputs via the API
+        """
+
+        bo = Build.objects.get(pk=1)
+
+        n_outputs = bo.output_count
+
+        create_url = reverse('api-build-output-create', kwargs={'pk': 1})
+
+        # Attempt to create outputs with invalid data
+        response = self.post(
+            create_url,
+            {
+                'quantity': 'not a number',
+            },
+            expected_code=400
+        )
+
+        self.assertIn('A valid number is required', str(response.data))
+
+        for q in [-100, -10.3, 0]:
+
+            response = self.post(
+                create_url,
+                {
+                    'quantity': q,
+                },
+                expected_code=400
+            )
+
+            if q == 0:
+                self.assertIn('Quantity must be greater than zero', str(response.data))
+            else:
+                self.assertIn('Ensure this value is greater than or equal to 0', str(response.data))
+
+        # Mark the part being built as 'trackable' (requires integer quantity)
+        bo.part.trackable = True
+        bo.part.save()
+
+        response = self.post(
+            create_url,
+            {
+                'quantity': 12.3,
+            },
+            expected_code=400
+        )
+
+        self.assertIn('Integer quantity required for trackable parts', str(response.data))
+
+        # Erroneous serial numbers
+        response = self.post(
+            create_url,
+            {
+                'quantity': 5,
+                'serial_numbers': '1, 2, 3, 4, 5, 6',
+                'batch': 'my-batch',
+            },
+            expected_code=400
+        )
+
+        self.assertIn('Number of unique serial numbers (6) must match quantity (5)', str(response.data))
+
+        # At this point, no new build outputs should have been created
+        self.assertEqual(n_outputs, bo.output_count)
+
+        # Now, create with *good* data
+        response = self.post(
+            create_url,
+            {
+                'quantity': 5,
+                'serial_numbers': '1, 2, 3, 4, 5',
+                'batch': 'my-batch',
+            },
+            expected_code=201,
+        )
+
+        # 5 new outputs have been created
+        self.assertEqual(n_outputs + 5, bo.output_count)
+
+        # Attempt to create with identical serial numbers
+        response = self.post(
+            create_url,
+            {
+                'quantity': 3,
+                'serial_numbers': '1-3',
+            },
+            expected_code=400,
+        )
+
+        self.assertIn('The following serial numbers already exist : 1,2,3', str(response.data))
+
+        # Double check no new outputs have been created
+        self.assertEqual(n_outputs + 5, bo.output_count)
+
+        # Now, let's delete each build output individually via the API
+        outputs = bo.build_outputs.all()
+
+        delete_url = reverse('api-build-output-delete', kwargs={'pk': 1})
+
+        response = self.post(
+            delete_url,
+            {
+                'outputs': [],
+            },
+            expected_code=400
+        )
+
+        self.assertIn('A list of build outputs must be provided', str(response.data))
+
+        # Mark 1 build output as complete
+        bo.complete_build_output(outputs[0], self.user)
+
+        self.assertEqual(n_outputs + 5, bo.output_count)
+        self.assertEqual(1, bo.complete_count)
+
+        # Delete all outputs at once
+        # Note: One has been completed, so this should fail!
+        response = self.post(
+            delete_url,
+            {
+                'outputs': [
+                    {
+                        'output': output.pk,
+                    } for output in outputs
+                ]
+            },
+            expected_code=400
+        )
+
+        self.assertIn('This build output has already been completed', str(response.data))
+
+        # No change to the build outputs
+        self.assertEqual(n_outputs + 5, bo.output_count)
+        self.assertEqual(1, bo.complete_count)
+
+        # Let's delete 2 build outputs
+        response = self.post(
+            delete_url,
+            {
+                'outputs': [
+                    {
+                        'output': output.pk,
+                    } for output in outputs[1:3]
+                ]
+            },
+            expected_code=201
+        )
+
+        # Two build outputs have been removed
+        self.assertEqual(n_outputs + 3, bo.output_count)
+        self.assertEqual(1, bo.complete_count)
+
+        # Tests for BuildOutputComplete serializer
+        complete_url = reverse('api-build-output-complete', kwargs={'pk': 1})
+
+        # Let's mark the remaining outputs as complete
+        response = self.post(
+            complete_url,
+            {
+                'outputs': [],
+                'location': 4,
+            },
+            expected_code=400,
+        )
+
+        self.assertIn('A list of build outputs must be provided', str(response.data))
+
+        for output in outputs[3:]:
+            output.refresh_from_db()
+            self.assertTrue(output.is_building)
+
+        response = self.post(
+            complete_url,
+            {
+                'outputs': [
+                    {
+                        'output': output.pk
+                    } for output in outputs[3:]
+                ],
+                'location': 4,
+            },
+            expected_code=201,
+        )
+
+        # Check that the outputs have been completed
+        self.assertEqual(3, bo.complete_count)
+
+        for output in outputs[3:]:
+            output.refresh_from_db()
+            self.assertEqual(output.location.pk, 4)
+            self.assertFalse(output.is_building)
+
+        # Try again, with an output which has already been completed
+        response = self.post(
+            complete_url,
+            {
+                'outputs': [
+                    {
+                        'output': outputs.last().pk,
+                    }
+                ]
+            },
+            expected_code=400,
+        )
+
+        self.assertIn('This build output has already been completed', str(response.data))
+
 
 class BuildAllocationTest(BuildAPITest):
     """

InvenTree/build/tests.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.test import TestCase
 from django.urls import reverse
 

InvenTree/build/views.py

@@ -2,9 +2,6 @@
 Django views for interacting with Build objects
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import DetailView, ListView
 

InvenTree/common/admin.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.contrib import admin
 
 from import_export.admin import ImportExportModelAdmin

InvenTree/common/api.py

@@ -2,9 +2,6 @@
 Provides a JSON API for common components.
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import json
 
 from django.http.response import HttpResponse

InvenTree/common/files.py

@@ -199,7 +199,7 @@ class FileManager:
 
                 try:
                     # Excel import casts number-looking-items into floats, which is annoying
-                    if item == int(item) and not str(item) == str(int(item)):
+                    if item == int(item) and str(item) != str(int(item)):
                         data[idx] = int(item)
                 except ValueError:
                     pass

InvenTree/common/forms.py

@@ -2,9 +2,6 @@
 Django forms for interacting with common objects
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django import forms
 from django.utils.translation import gettext as _
 

InvenTree/common/models.py

@@ -3,9 +3,6 @@ Common database model definitions.
 These models are 'generic' and do not fit a particular business logic object.
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import os
 import decimal
 import math
@@ -271,9 +268,9 @@ class BaseInvenTreeSetting(models.Model):
         plugin = kwargs.get('plugin', None)
 
         if plugin is not None:
-            from plugin import InvenTreePluginBase
+            from plugin import InvenTreePlugin
 
-            if issubclass(plugin.__class__, InvenTreePluginBase):
+            if issubclass(plugin.__class__, InvenTreePlugin):
                 plugin = plugin.plugin_config()
 
             filters['plugin'] = plugin
@@ -375,9 +372,9 @@ class BaseInvenTreeSetting(models.Model):
             filters['user'] = user
 
         if plugin is not None:
-            from plugin import InvenTreePluginBase
+            from plugin import InvenTreePlugin
 
-            if issubclass(plugin.__class__, InvenTreePluginBase):
+            if issubclass(plugin.__class__, InvenTreePlugin):
                 filters['plugin'] = plugin.plugin_config()
             else:
                 filters['plugin'] = plugin
@@ -1802,10 +1799,8 @@ class WebhookEndpoint(models.Model):
     def process_webhook(self):
         if self.token:
             self.verify = VerificationMethod.TOKEN
-            # TODO make a object-setting
         if self.secret:
             self.verify = VerificationMethod.HMAC
-            # TODO make a object-setting
         return True
 
     def validate_token(self, payload, headers, request):

InvenTree/common/notifications.py

@@ -108,7 +108,7 @@ class NotificationMethod:
             return False
 
         # Check if method globally enabled
-        plg_instance = registry.plugins.get(plg_cls.PLUGIN_NAME.lower())
+        plg_instance = registry.plugins.get(plg_cls.NAME.lower())
         if plg_instance and not plg_instance.get_setting(self.GLOBAL_SETTING):
             return True
 

InvenTree/common/serializers.py

@@ -2,9 +2,6 @@
 JSON serializers for common components
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from InvenTree.serializers import InvenTreeModelSerializer
 from InvenTree.helpers import get_objectreference
 

InvenTree/common/settings.py

@@ -2,9 +2,6 @@
 User-configurable settings for the common app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from moneyed import CURRENCIES
 from django.conf import settings
 

InvenTree/common/tasks.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import logging
 from datetime import timedelta, datetime
 

InvenTree/common/test_notifications.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from common.notifications import NotificationMethod, SingleNotificationMethod, BulkNotificationMethod, storage
 from plugin.models import NotificationUserSetting
 from part.test_part import BaseNotificationIntegrationTest

InvenTree/common/test_tasks.py

@@ -2,6 +2,7 @@
 from django.test import TestCase
 
 from common.models import NotificationEntry
+from . import tasks as common_tasks
 from InvenTree.tasks import offload_task
 
 
@@ -14,4 +15,4 @@ class TaskTest(TestCase):
 
         # check empty run
         self.assertEqual(NotificationEntry.objects.all().count(), 0)
-        offload_task('common.tasks.delete_old_notifications',)
+        offload_task(common_tasks.delete_old_notifications,)

InvenTree/common/test_views.py

@@ -1,6 +1,3 @@
 """
 Unit tests for the views associated with the 'common' app
 """
-
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals

InvenTree/common/tests.py

@@ -1,5 +1,4 @@
-# -*- coding: utf-8 -*-
+
-from __future__ import unicode_literals
 from http import HTTPStatus
 import json
 from datetime import timedelta
@@ -10,7 +9,8 @@ from django.urls import reverse
 
 from InvenTree.api_tester import InvenTreeAPITestCase
 from InvenTree.helpers import str2bool
-from plugin.models import NotificationUserSetting
+from plugin.models import NotificationUserSetting, PluginConfig
+from plugin import registry
 
 from .models import InvenTreeSetting, InvenTreeUserSetting, WebhookEndpoint, WebhookMessage, NotificationEntry
 from .api import WebhookView
@@ -132,7 +132,7 @@ class SettingsTest(TestCase):
             if description is None:
                 raise ValueError(f'Missing GLOBAL_SETTING description for {key}')  # pragma: no cover
 
-            if not key == key.upper():
+            if key != key.upper():
                 raise ValueError(f"SETTINGS key '{key}' is not uppercase")  # pragma: no cover
 
     def test_defaults(self):
@@ -477,15 +477,36 @@ class PluginSettingsApiTest(InvenTreeAPITestCase):
 
         self.get(url, expected_code=200)
 
-    def test_invalid_plugin_slug(self):
+    def test_valid_plugin_slug(self):
-        """Test that an invalid plugin slug returns a 404"""
+        """Test that an valid plugin slug runs through"""
+        # load plugin configs
+        fixtures = PluginConfig.objects.all()
+        if not fixtures:
+            registry.reload_plugins()
+            fixtures = PluginConfig.objects.all()
 
+        # get data
+        url = reverse('api-plugin-setting-detail', kwargs={'plugin': 'sample', 'key': 'API_KEY'})
+        response = self.get(url, expected_code=200)
+
+        # check the right setting came through
+        self.assertTrue(response.data['key'], 'API_KEY')
+        self.assertTrue(response.data['plugin'], 'sample')
+        self.assertTrue(response.data['type'], 'string')
+        self.assertTrue(response.data['description'], 'Key required for accessing external API')
+
+        # Failure mode tests
+
+        # Non - exsistant plugin
         url = reverse('api-plugin-setting-detail', kwargs={'plugin': 'doesnotexist', 'key': 'doesnotmatter'})
-
         response = self.get(url, expected_code=404)
-
         self.assertIn("Plugin 'doesnotexist' not installed", str(response.data))
 
+        # Wrong key
+        url = reverse('api-plugin-setting-detail', kwargs={'plugin': 'sample', 'key': 'doesnotexsist'})
+        response = self.get(url, expected_code=404)
+        self.assertIn("Plugin 'sample' has no setting matching 'doesnotexsist'", str(response.data))
+
     def test_invalid_setting_key(self):
         """Test that an invalid setting key returns a 404"""
         ...

InvenTree/common/views.py

@@ -2,9 +2,6 @@
 Django views for interacting with common models
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import os
 
 from django.utils.translation import gettext_lazy as _

InvenTree/company/admin.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.contrib import admin
 
 from import_export.admin import ImportExportModelAdmin

InvenTree/company/api.py

@@ -2,9 +2,6 @@
 Provides a JSON API for the Company app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django_filters.rest_framework import DjangoFilterBackend
 from django_filters import rest_framework as rest_filters
 

InvenTree/company/apps.py

@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 from django.apps import AppConfig
 
 

InvenTree/company/forms.py

@@ -2,9 +2,6 @@
 Django Forms for interacting with Company app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from InvenTree.forms import HelperForm
 from InvenTree.fields import RoundingDecimalFormField
 

InvenTree/company/models.py

@@ -2,9 +2,6 @@
 Company database model definitions
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import os
 
 from django.utils.translation import gettext_lazy as _
@@ -494,7 +491,7 @@ class SupplierPart(models.Model):
         # Ensure that the linked manufacturer_part points to the same part!
         if self.manufacturer_part and self.part:
 
-            if not self.manufacturer_part.part == self.part:
+            if self.manufacturer_part.part != self.part:
                 raise ValidationError({
                     'manufacturer_part': _("Linked manufacturer part must reference the same base part"),
                 })

InvenTree/company/test_views.py

@@ -1,8 +1,5 @@
 """ Unit tests for Company views (see views.py) """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.test import TestCase
 from django.urls import reverse
 from django.contrib.auth import get_user_model

InvenTree/company/tests.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.test import TestCase
 from django.core.exceptions import ValidationError
 

InvenTree/company/views.py

@@ -2,10 +2,6 @@
 Django views for interacting with Company app
 """
 
-
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import DetailView, ListView
 
@@ -162,7 +158,7 @@ class CompanyImageDownloadFromURL(AjaxUpdateView):
         self.response = response
 
         # Check for valid response code
-        if not response.status_code == 200:
+        if response.status_code != 200:
             form.add_error('url', _('Invalid response: {code}').format(code=response.status_code))
             return
 

InvenTree/label/admin.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.contrib import admin
 
 from .models import StockItemLabel, StockLocationLabel, PartLabel

InvenTree/label/api.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from io import BytesIO
 from PIL import Image
 
@@ -24,6 +21,7 @@ from plugin.registry import registry
 
 from stock.models import StockItem, StockLocation
 from part.models import Part
+from plugin.base.label import label as plugin_label
 
 from .models import StockItemLabel, StockLocationLabel, PartLabel
 from .serializers import StockItemLabelSerializer, StockLocationLabelSerializer, PartLabelSerializer
@@ -156,7 +154,7 @@ class LabelPrintMixin:
 
                 # Offload a background task to print the provided label
                 offload_task(
-                    'plugin.events.print_label',
+                    plugin_label.print_label,
                     plugin.plugin_slug(),
                     image,
                     label_instance=label_instance,

InvenTree/label/apps.py

@@ -105,7 +105,7 @@ class LabelConfig(AppConfig):
                 # File already exists - let's see if it is the "same",
                 # or if we need to overwrite it with a newer copy!
 
-                if not hashFile(dst_file) == hashFile(src_file):  # pragma: no cover
+                if hashFile(dst_file) != hashFile(src_file):  # pragma: no cover
                     logger.info(f"Hash differs for '{filename}'")
                     to_copy = True
 
@@ -199,7 +199,7 @@ class LabelConfig(AppConfig):
                 # File already exists - let's see if it is the "same",
                 # or if we need to overwrite it with a newer copy!
 
-                if not hashFile(dst_file) == hashFile(src_file):  # pragma: no cover
+                if hashFile(dst_file) != hashFile(src_file):  # pragma: no cover
                     logger.info(f"Hash differs for '{filename}'")
                     to_copy = True
 
@@ -291,7 +291,7 @@ class LabelConfig(AppConfig):
             if os.path.exists(dst_file):
                 # File already exists - let's see if it is the "same"
 
-                if not hashFile(dst_file) == hashFile(src_file):  # pragma: no cover
+                if hashFile(dst_file) != hashFile(src_file):  # pragma: no cover
                     logger.info(f"Hash differs for '{filename}'")
                     to_copy = True
 

InvenTree/label/models.py

@@ -2,9 +2,6 @@
 Label printing models
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import sys
 import os
 import logging

InvenTree/label/serializers.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from InvenTree.serializers import InvenTreeModelSerializer
 from InvenTree.serializers import InvenTreeAttachmentSerializerField
 

InvenTree/label/test_api.py

@@ -1,8 +1,5 @@
 # Tests for labels
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.urls import reverse
 
 from InvenTree.api_tester import InvenTreeAPITestCase

InvenTree/label/tests.py

@@ -1,8 +1,5 @@
 # Tests for labels
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import os
 
 from django.conf import settings

InvenTree/order/admin.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.contrib import admin
 
 from import_export.admin import ImportExportModelAdmin

InvenTree/order/api.py

@@ -2,9 +2,6 @@
 JSON API for the Order app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.urls import include, path, re_path
 from django.db.models import Q, F
 
@@ -27,6 +24,8 @@ import order.serializers as serializers
 from part.models import Part
 from users.models import Owner
 
+from plugin.serializers import MetadataSerializer
+
 
 class GeneralExtraLineList:
     """
@@ -347,6 +346,15 @@ class PurchaseOrderIssue(PurchaseOrderContextMixin, generics.CreateAPIView):
     serializer_class = serializers.PurchaseOrderIssueSerializer
 
 
+class PurchaseOrderMetadata(generics.RetrieveUpdateAPIView):
+    """API endpoint for viewing / updating PurchaseOrder metadata"""
+
+    def get_serializer(self, *args, **kwargs):
+        return MetadataSerializer(models.PurchaseOrder, *args, **kwargs)
+
+    queryset = models.PurchaseOrder.objects.all()
+
+
 class PurchaseOrderReceive(PurchaseOrderContextMixin, generics.CreateAPIView):
     """
     API endpoint to receive stock items against a purchase order.
@@ -916,6 +924,15 @@ class SalesOrderComplete(SalesOrderContextMixin, generics.CreateAPIView):
     serializer_class = serializers.SalesOrderCompleteSerializer
 
 
+class SalesOrderMetadata(generics.RetrieveUpdateAPIView):
+    """API endpoint for viewing / updating SalesOrder metadata"""
+
+    def get_serializer(self, *args, **kwargs):
+        return MetadataSerializer(models.SalesOrder, *args, **kwargs)
+
+    queryset = models.SalesOrder.objects.all()
+
+
 class SalesOrderAllocateSerials(SalesOrderContextMixin, generics.CreateAPIView):
     """
     API endpoint to allocation stock items against a SalesOrder,
@@ -1138,10 +1155,13 @@ order_api_urls = [
 
         # Individual purchase order detail URLs
         re_path(r'^(?P<pk>\d+)/', include([
-            re_path(r'^issue/', PurchaseOrderIssue.as_view(), name='api-po-issue'),
-            re_path(r'^receive/', PurchaseOrderReceive.as_view(), name='api-po-receive'),
             re_path(r'^cancel/', PurchaseOrderCancel.as_view(), name='api-po-cancel'),
             re_path(r'^complete/', PurchaseOrderComplete.as_view(), name='api-po-complete'),
+            re_path(r'^issue/', PurchaseOrderIssue.as_view(), name='api-po-issue'),
+            re_path(r'^metadata/', PurchaseOrderMetadata.as_view(), name='api-po-metadata'),
+            re_path(r'^receive/', PurchaseOrderReceive.as_view(), name='api-po-receive'),
+
+            # PurchaseOrder detail API endpoint
             re_path(r'.*$', PurchaseOrderDetail.as_view(), name='api-po-detail'),
         ])),
 
@@ -1178,10 +1198,13 @@ order_api_urls = [
 
         # Sales order detail view
         re_path(r'^(?P<pk>\d+)/', include([
-            re_path(r'^cancel/', SalesOrderCancel.as_view(), name='api-so-cancel'),
-            re_path(r'^complete/', SalesOrderComplete.as_view(), name='api-so-complete'),
             re_path(r'^allocate/', SalesOrderAllocate.as_view(), name='api-so-allocate'),
             re_path(r'^allocate-serials/', SalesOrderAllocateSerials.as_view(), name='api-so-allocate-serials'),
+            re_path(r'^cancel/', SalesOrderCancel.as_view(), name='api-so-cancel'),
+            re_path(r'^complete/', SalesOrderComplete.as_view(), name='api-so-complete'),
+            re_path(r'^metadata/', SalesOrderMetadata.as_view(), name='api-so-metadata'),
+
+            # SalesOrder detail endpoint
             re_path(r'^.*$', SalesOrderDetail.as_view(), name='api-so-detail'),
         ])),
 

InvenTree/order/forms.py

@@ -2,9 +2,6 @@
 Django Forms for interacting with Order objects
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django import forms
 from django.utils.translation import gettext_lazy as _
 

InvenTree/order/migrations/0067_auto_20220516_1120.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.2.13 on 2022-05-16 11:20
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('order', '0066_alter_purchaseorder_supplier'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='purchaseorder',
+            name='metadata',
+            field=models.JSONField(blank=True, help_text='JSON metadata field, for use by external plugins', null=True, verbose_name='Plugin Metadata'),
+        ),
+        migrations.AddField(
+            model_name='salesorder',
+            name='metadata',
+            field=models.JSONField(blank=True, help_text='JSON metadata field, for use by external plugins', null=True, verbose_name='Plugin Metadata'),
+        ),
+    ]

InvenTree/order/models.py

@@ -30,7 +30,9 @@ from users import models as UserModels
 from part import models as PartModels
 from stock import models as stock_models
 from company.models import Company, SupplierPart
+
 from plugin.events import trigger_event
+from plugin.models import MetadataMixin
 
 import InvenTree.helpers
 from InvenTree.fields import InvenTreeModelMoneyField, RoundingDecimalField
@@ -97,7 +99,7 @@ def get_next_so_number():
     return reference
 
 
-class Order(ReferenceIndexingMixin):
+class Order(MetadataMixin, ReferenceIndexingMixin):
     """ Abstract model for an order.
 
     Instances of this class:
@@ -306,7 +308,7 @@ class PurchaseOrder(Order):
         except ValueError:
             raise ValidationError({'quantity': _("Invalid quantity provided")})
 
-        if not supplier_part.supplier == self.supplier:
+        if supplier_part.supplier != self.supplier:
             raise ValidationError({'supplier': _("Part supplier must match PO supplier")})
 
         if group:
@@ -445,7 +447,7 @@ class PurchaseOrder(Order):
         if barcode is None:
             barcode = ''
 
-        if not self.status == PurchaseOrderStatus.PLACED:
+        if self.status != PurchaseOrderStatus.PLACED:
             raise ValidationError(
                 "Lines can only be received against an order marked as 'PLACED'"
             )
@@ -729,7 +731,7 @@ class SalesOrder(Order):
         Return True if this order can be cancelled
         """
 
-        if not self.status == SalesOrderStatus.PENDING:
+        if self.status != SalesOrderStatus.PENDING:
             return False
 
         return True
@@ -1295,7 +1297,7 @@ class SalesOrderAllocation(models.Model):
             raise ValidationError({'item': _('Stock item has not been assigned')})
 
         try:
-            if not self.line.part == self.item.part:
+            if self.line.part != self.item.part:
                 errors['item'] = _('Cannot allocate stock item to a line with a different part')
         except PartModels.Part.DoesNotExist:
             errors['line'] = _('Cannot allocate stock to a line without a part')
@@ -1310,7 +1312,7 @@ class SalesOrderAllocation(models.Model):
         if self.quantity <= 0:
             errors['quantity'] = _('Allocation quantity must be greater than zero')
 
-        if self.item.serial and not self.quantity == 1:
+        if self.item.serial and self.quantity != 1:
             errors['quantity'] = _('Quantity must be 1 for serialized stock item')
 
         if self.line.order != self.shipment.order:

InvenTree/order/serializers.py

@@ -2,9 +2,6 @@
 JSON serializers for the Order API
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from decimal import Decimal
 
 from django.utils.translation import gettext_lazy as _

InvenTree/order/test_api.py

@@ -306,6 +306,22 @@ class PurchaseOrderTest(OrderTest):
 
         self.assertEqual(po.status, PurchaseOrderStatus.PLACED)
 
+    def test_po_metadata(self):
+        url = reverse('api-po-metadata', kwargs={'pk': 1})
+
+        self.patch(
+            url,
+            {
+                'metadata': {
+                    'yam': 'yum',
+                }
+            },
+            expected_code=200
+        )
+
+        order = models.PurchaseOrder.objects.get(pk=1)
+        self.assertEqual(order.get_metadata('yam'), 'yum')
+
 
 class PurchaseOrderReceiveTest(OrderTest):
     """
@@ -875,6 +891,22 @@ class SalesOrderTest(OrderTest):
 
         self.assertEqual(so.status, SalesOrderStatus.CANCELLED)
 
+    def test_so_metadata(self):
+        url = reverse('api-so-metadata', kwargs={'pk': 1})
+
+        self.patch(
+            url,
+            {
+                'metadata': {
+                    'xyz': 'abc',
+                }
+            },
+            expected_code=200
+        )
+
+        order = models.SalesOrder.objects.get(pk=1)
+        self.assertEqual(order.get_metadata('xyz'), 'abc')
+
 
 class SalesOrderAllocateTest(OrderTest):
     """

InvenTree/order/test_views.py

@@ -1,8 +1,5 @@
 """ Unit tests for Order views (see views.py) """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.test import TestCase
 from django.urls import reverse
 from django.contrib.auth import get_user_model

InvenTree/order/views.py

@@ -2,9 +2,6 @@
 Django views for interacting with Order app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.db.utils import IntegrityError
 from django.http.response import JsonResponse
 from django.shortcuts import get_object_or_404

InvenTree/part/admin.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.contrib import admin
 
 from import_export.admin import ImportExportModelAdmin

InvenTree/part/api.py

@@ -2,9 +2,6 @@
 Provides a JSON API for the Part app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import datetime
 
 from django.urls import include, path, re_path
@@ -44,6 +41,7 @@ from stock.models import StockItem, StockLocation
 from common.models import InvenTreeSetting
 from build.models import Build, BuildItem
 import order.models
+from plugin.serializers import MetadataSerializer
 
 from . import serializers as part_serializers
 
@@ -203,6 +201,15 @@ class CategoryDetail(generics.RetrieveUpdateDestroyAPIView):
         return response
 
 
+class CategoryMetadata(generics.RetrieveUpdateAPIView):
+    """API endpoint for viewing / updating PartCategory metadata"""
+
+    def get_serializer(self, *args, **kwargs):
+        return MetadataSerializer(PartCategory, *args, **kwargs)
+
+    queryset = PartCategory.objects.all()
+
+
 class CategoryParameterList(generics.ListAPIView):
     """ API endpoint for accessing a list of PartCategoryParameterTemplate objects.
 
@@ -587,6 +594,17 @@ class PartScheduling(generics.RetrieveAPIView):
         return Response(schedule)
 
 
+class PartMetadata(generics.RetrieveUpdateAPIView):
+    """
+    API endpoint for viewing / updating Part metadata
+    """
+
+    def get_serializer(self, *args, **kwargs):
+        return MetadataSerializer(Part, *args, **kwargs)
+
+    queryset = Part.objects.all()
+
+
 class PartSerialNumberDetail(generics.RetrieveAPIView):
     """
     API endpoint for returning extra serial number information about a particular part
@@ -1912,7 +1930,15 @@ part_api_urls = [
         re_path(r'^tree/', CategoryTree.as_view(), name='api-part-category-tree'),
         re_path(r'^parameters/', CategoryParameterList.as_view(), name='api-part-category-parameter-list'),
 
-        re_path(r'^(?P<pk>\d+)/?', CategoryDetail.as_view(), name='api-part-category-detail'),
+        # Category detail endpoints
+        re_path(r'^(?P<pk>\d+)/', include([
+
+            re_path(r'^metadata/', CategoryMetadata.as_view(), name='api-part-category-metadata'),
+
+            # PartCategory detail endpoint
+            re_path(r'^.*$', CategoryDetail.as_view(), name='api-part-category-detail'),
+        ])),
+
         path('', CategoryList.as_view(), name='api-part-category-list'),
     ])),
 
@@ -1973,6 +1999,9 @@ part_api_urls = [
         # Endpoint for validating a BOM for the specific Part
         re_path(r'^bom-validate/', PartValidateBOM.as_view(), name='api-part-bom-validate'),
 
+        # Part metadata
+        re_path(r'^metadata/', PartMetadata.as_view(), name='api-part-metadata'),
+
         # Part detail endpoint
         re_path(r'^.*$', PartDetail.as_view(), name='api-part-detail'),
     ])),

InvenTree/part/apps.py

@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 import logging
 
 from django.db.utils import OperationalError, ProgrammingError

InvenTree/part/forms.py

@@ -2,9 +2,6 @@
 Django Forms for interacting with Part objects
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django import forms
 from django.utils.translation import gettext_lazy as _