move plugins checks to method

InvenTree/common/notifications.py

@@ -4,6 +4,7 @@ from datetime import timedelta
 from InvenTree.helpers import inheritors
 from InvenTree.ready import isImportingData
 from common.models import NotificationEntry, NotificationMessage
+from plugin import registry
 
 
 logger = logging.getLogger('inventree')
@@ -17,6 +18,7 @@ class NotificationMethod:
     METHOD_NAME = ''
     CONTEXT_BUILTIN = ['name', 'message', ]
     CONTEXT_EXTRA = []
+    GLOBAL_SETTING = None
 
     def __init__(self, obj, category, targets, context) -> None:
         # Check if a sending fnc is defined
@@ -27,6 +29,11 @@ class NotificationMethod:
         if self.METHOD_NAME in ('', None):
             raise NotImplementedError(f'The NotificationMethod {self.__class__} did not provide a METHOD_NAME')
 
+        # Check if plugin is disabled - if so do not gather targets etc.
+        if self.global_setting_disable():
+            self.targets = None
+            return
+
         # Define arguments
         self.obj = obj
         self.category = category
@@ -80,6 +87,30 @@ class NotificationMethod:
     def cleanup(self):
         return True
 
+    # region plugins
+    def get_plugin(self):
+        """Returns plugin class"""
+        return False
+
+    def global_setting_disable(self):
+        """Check if the method is defined in a plugin and has a global setting"""
+        # Check if plugin has a setting
+        if not self.GLOBAL_SETTING:
+            return False
+
+        # Check if plugin is set
+        plg_cls = self.get_plugin()
+        if not plg_cls:
+            return False
+
+        # Check if method globally enabled
+        plg_instance = registry.plugins.get(plg_cls.PLUGIN_NAME.lower())
+        if plg_instance and not plg_instance.get_setting(self.GLOBAL_SETTING):
+            return True
+
+        # Lets go!
+        return False
+    # endregion
 
 class SingleNotificationMethod(NotificationMethod):
     def send(self, target):

InvenTree/plugin/builtin/integration/core_notifications.py

@@ -11,6 +11,11 @@ from common.models import InvenTreeUserSetting
 import InvenTree.tasks
 
 
+class PlgMixin:
+    def get_plugin(self):
+        return CoreNotificationsPlugin
+
+
 class CoreNotificationsPlugin(SettingsMixin, IntegrationPluginBase):
     """
     Core notification methods for InvenTree
@@ -29,13 +34,15 @@ class CoreNotificationsPlugin(SettingsMixin, IntegrationPluginBase):
         },
     }
 
-    class EmailNotification(BulkNotificationMethod):
+    class EmailNotification(PlgMixin, BulkNotificationMethod):
         METHOD_NAME = 'mail'
         CONTEXT_EXTRA = [
             ('template', ),
             ('template', 'html', ),
             ('template', 'subject', ),
         ]
+        GLOBAL_SETTING = 'ENABLE_NOTIFICATION_EMAILS'
+        }
 
         def get_targets(self):
             """
@@ -43,11 +50,6 @@ class CoreNotificationsPlugin(SettingsMixin, IntegrationPluginBase):
             only for users which allow email notifications
             """
 
-            # Check if method globally enabled
-            plg = registry.plugins.get(CoreNotificationsPlugin.PLUGIN_NAME.lower())
-            if plg and not plg.get_setting('ENABLE_NOTIFICATION_EMAILS'):
-                return
-
             allowed_users = []
 
             for user in self.targets: