[Answered ]-Writing Django messaging to log files as well

by

2👍

✅

I would do this way:

  1. create a messages-like app in your project:

    myproject/
    messages/
        __init__.py

  2. in your __init__.py file you can have function definitions:

    from django.contrib import messages
import logging

logger = logging.getLogger("messages")

def debug(request, msg, *args, **kwargs):
    messages.debug(request, msg, *args, **kwargs)
    logger.debug(msg)

def info(request, msg, *args, **kwargs):
    messages.info(request, msg, *args, **kwargs)
    logger.info(msg)

def warning(request, msg, *args, **kwargs):
    messages.warning(request, msg, *args, **kwargs)
    logger.warning(msg)

def error(request, msg, *args, **kwargs):
    messages.error(request, msg, *args, **kwargs)        
    logger.error(msg)

  3. define a handler for “messages” logs in your LOGGING variable (in the settings file)

  4. import your library instead of django.contrib.messages

It’s a bit “boring” to write, but I think it’s general enough to be reused in several places. Of course you can take care of redefining also other functions found in django.contrib.messages.

Unfortunately it does not make too much sense to talk about subclassing the django messages framework, since this is not defined as a class.

Hope it helps

👤FSp

0👍

I would suggest creating custom MESSAGE_STORAGE based on existing storage to suit your needs. All you need to do is overload add method. For example this one based on CookieStorage:

import logging
from django.contrib.messages import constants, utils
from django.contrib.messages.storage.cookie import CookieStorage

logger = logging.getLogger(__name__)

class CookieLoggerStorage(CookieStorage):
    def add(self, level, message, extra_tags=''):
        if message and level > constants.SUCCESS: # logs WARNING and ERROR
            logger.log(level, message)
        super(CookieLoggerStorage, self).add(level, message, extra_tags)

In settings.py add:

# settings.py
MESSAGE_STORAGE = "path.to.CookieLoggerStorage"

Just for clarity, messages.constants seems to be the same as logger level constants so you can almost feed logger with messages levels

django.contrib.messages.constants

DEBUG   = 10
INFO    = 20
SUCCESS = 25
WARNING = 30
ERROR   = 40

logging constants

DEBUG       10
INFO        20
WARNING     30
ERROR       40
CRITICAL    50
NOTSET      0
👤pista329

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