Devcontainer postgresql (#6590)

* Working on devcontainer with postgresql

* Fix for docker-compose.yml

* Update postCreateCommand

* Tweak docker compose file

* Fix Dockerfile

- Do not use uv (breaks process)

* Update postCreateCommand.sh

- Skip database backup

* Tweak file

* Further improvements

- Remove 'devcontainer' Dockerfile target
- Fix postCreateCommand

* Further cleanup

* Reduce SQL errors

- Use filter().exists() rather than get()

* Set default SITE_URL

* Docs updates

* Fix hard-coded django version

* Update faq.md

* Typo fix: PluginObject -> PluginConfig

* Docs: strict mode

* docs: fix link

* docs: fix typo

* Fix error message

* Revert change to config_template default

InvenTree/common/models.py

@@ -675,12 +675,14 @@ class BaseInvenTreeSetting(models.Model):
         }
 
         try:
-            setting = cls.objects.get(**filters)
-        except cls.DoesNotExist:
-            if create:
-                setting = cls(key=key, **kwargs)
-            else:
-                return
+            setting = cls.objects.filter(**filters).first()
+
+            if not setting:
+                if create:
+                    setting = cls(key=key, **kwargs)
+                else:
+                    return
+
         except (OperationalError, ProgrammingError):
             if not key.startswith('_'):
                 logger.warning("Database is locked, cannot set setting '%s'", key)

InvenTree/plugin/api.py

@@ -289,13 +289,13 @@ def check_plugin(plugin_slug: str, plugin_pk: int) -> InvenTreePlugin:
 
     # Check that the 'plugin' specified is valid
     try:
-        plugin_cgf = PluginConfig.objects.get(**filter)
+        plugin_cgf = PluginConfig.objects.filter(**filter).first()
     except PluginConfig.DoesNotExist:
         raise NotFound(detail=f"Plugin '{ref}' not installed")
 
     if plugin_cgf is None:
         # This only occurs if the plugin mechanism broke
-        raise NotFound(detail=f"Plugin '{ref}' not found")  # pragma: no cover
+        raise NotFound(detail=f"Plugin '{ref}' not installed")  # pragma: no cover
 
     # Check that the plugin is activated
     if not plugin_cgf.active:

InvenTree/plugin/registry.py

@@ -115,7 +115,11 @@ class PluginsRegistry:
             return None
 
         try:
-            cfg, _created = PluginConfig.objects.get_or_create(key=slug)
+            cfg = PluginConfig.objects.filter(key=slug).first()
+
+            if not cfg:
+                cfg = PluginConfig.objects.create(key=slug)
+
         except PluginConfig.DoesNotExist:
             return None
         except (IntegrityError, OperationalError, ProgrammingError):  # pragma: no cover