[bug] Various fixes (#12057)

* [bug] Various fixes

- Add get_api_url to EmailThread model
- Prevent setting creation during import
- Tweak BarcodeScanHistoryTable

* Tweak barcode history table tests

* Bump API version

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,11 +1,14 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 498
+INVENTREE_API_VERSION = 499
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 INVENTREE_API_TEXT = """
 
+v499 -> 2026-06-01 : https://github.com/inventree/InvenTree/pull/12057
+    - Fixes search field issues on the BarcodeScanHistory API endpoint
+
 v498 -> 2026-05-31 : https://github.com/inventree/InvenTree/pull/12055
     - Updates the "status_text" field for models which support custom status values
 

src/backend/InvenTree/common/models.py

@@ -3355,6 +3355,11 @@ class EmailThread(InvenTree.models.InvenTreeMetadataModel):
         unique_together = [['key', 'global_id']]
         ordering = ['-updated']
 
+    @staticmethod
+    def get_api_url():
+        """Return the API URL associated with the EmailThread model."""
+        return reverse('api-email-list')
+
     key = models.CharField(
         max_length=250,
         verbose_name=_('Key'),

src/backend/InvenTree/plugin/base/barcodes/api.py

@@ -853,11 +853,11 @@ class BarcodeScanResultList(BarcodeScanResultMixin, BulkDeleteMixin, ListAPI):
     filterset_class = BarcodeScanResultFilter
     filter_backends = SEARCH_ORDER_FILTER
 
-    ordering_fields = ['user', 'plugin', 'timestamp', 'endpoint', 'result']
+    ordering_fields = ['user', 'timestamp', 'endpoint', 'result']
 
     ordering = '-timestamp'
 
-    search_fields = ['plugin']
+    search_fields = ['data']
 
 
 class BarcodeScanResultDetail(BarcodeScanResultMixin, RetrieveDestroyAPI):

src/backend/InvenTree/plugin/base/integration/AppMixin.py

@@ -51,7 +51,9 @@ class AppMixin:
         """
         from common.settings import get_global_setting
 
-        if settings.PLUGIN_TESTING or get_global_setting('ENABLE_PLUGINS_APP'):
+        if settings.PLUGIN_TESTING or get_global_setting(
+            'ENABLE_PLUGINS_APP', create=False
+        ):
             logger.info('Registering IntegrationPlugin apps')
             apps_changed = False