Add function to services.hooks to provide a concise way for creating loggers for extensions/plugins. Revise basic documentation to use this function.

allianceauth/services/hooks.py

@@ -9,6 +9,29 @@ from allianceauth.hooks import get_hooks
 from .models import NameFormatConfig
 
 
+def get_extension_logger(name):
+    """
+    Takes the name of a plugin/extension and generates a child logger of the extensions logger
+    to be used by the extension to log events to the extensions logger.
+
+    The logging level is decided by whether or not DEBUG is set to true in the project settings. If
+    DEBUG is set to false, then the logging level is set to INFO.
+
+    :param: name: the name of the extension doing the logging
+    :return: an extensions child logger
+    """
+    import logging
+    from django.conf import settings
+
+    logger = logging.getLogger('extensions.' + name)
+    logger.name = name
+    logger.level = logging.INFO
+    if settings.DEBUG:
+        logger.level = logging.DEBUG
+
+    return logger
+
+
 class ServicesHook:
     """
     Abstract base class for creating a compatible services

docs/development/custom/logging.md

@@ -2,15 +2,13 @@
 Alliance Auth provides a logger for use with custom apps to make everyone's life a little easier.
 
 ## Using the Extensions Logger
-The extensions logger should not be directly used by custom apps as the error messages logged to it 
-will not be labeled with the correct name. In order to correctly use the extensions logger please follow
-the code below.
+AllianceAuth provides a helper function to get the logger for the current module to reduce the amount of
+code you need to write.
 
 ```python
-import logging
+from allianceauth.services.hooks import get_extension_logger
 
-logger = logging.getLogger('extensions.' + __name__)
-logger.name = __name__
+logger = get_extension_logger(__name__)
 ```
 
 This works by creating a child logger of the extension logger which propagates all log entries