there's a full section on it
http://web2py.com/books/default/chapter/29/04?search=logging#Logging
Il giorno venerdì 30 novembre 2012 15:58:23 UTC+1, Francisco Barretto ha
scritto:
>
> Hi There!
>
> Sorry to resurrect this long time dead post but I'm really wondering what
> is the proper way to log actions, errors and warns in
> Web2Py. Tried Hans/Iceberg solution but the log file is not created... Read
> in other topic about some logging functionality integrated but found none
> in web2py book. So, any hints?
>
> Thanks!
>
>
> On Friday, June 26, 2009 6:28:01 PM UTC-3, Hans wrote:
>>
>> Mike,
>> instead of importing in your Web2py controller use
>> execfile('your_module.py')
>>
>> In your module ...
>> try:
>> # this variable is available in Web2Py
>> # but raises an exception if run outside Web2Py
>> # since its not defined
>> request.env.web2py_version
>> # put here your web2py related code...
>> print 'code executed in Web2py %s' % request.env.web2py_version
>> except:
>> # put here your not Web2Py related code
>> print 'code NOT executed in Web2py environment'
>>
>> #put here your general code
>> print 'this part is always executed'
>>
>> Hans
>>
>> On Jun 25, 10:40 pm, MikeEllis <[email protected]> wrote:
>> > This looks really useful. Thanks for writing it. I'm trying to import
>> > some existing python modules that have logging calls into a web2py
>> > app. Just putting log.py into my models directory helps some, but I'm
>> > not seeing any messages from my existing modules with level lower than
>> > logging.ERROR. I am, however, getting lower level (down to
>> > logging.DEBUG) from the web2py framework. I suspect it has something
>> > to do with the customized logger my modules are using. I don't want
>> > to go through and comment out all the calls to my version of getLogger
>> > () because many of these modules are used by other code. I'm
>> > wondering if there's a way for a python module to detect at runtime
>> > whether it's being imported from the web2py framework. I might then be
>> > able to make my customized logging setup do nothing when running under
>> > web2py. Any suggestions?
>> >
>> > Thanks,
>> > Mike Ellus
>> >
>> > On Jun 25, 8:29 am, Hans <[email protected]>
>> > wrote:
>> >
>> > > Richard,
>> >
>> > > the following solution works for me in production without any
>> > > problems. I use it for periodic, unattended functions (cron). I've
>> > > send Massimo the code in case he wants to include it into web2py or
>> > > make it available as optional add-on download.
>> >
>> > > Hans
>> >
>> > > '''
>> > > To use the per application log file with rotating file handler in
>> > > web2py you need to put this file (log.py) into your models folder.
>> The
>> > > log
>> > > file itself is created in your_web2py_path/applications/
>> > > your_application/app.log
>> >
>> > > Writing into the log file from your controller works as follows:
>> > > def my_function():
>> > > logging.debug('my function abc is starting')
>> > > logging.error('huston we got a %s problem.' % 'major')
>> > > return
>> >
>> > > Viewing the log file through your application works as follows:
>> > > def show_log():
>> > > return get_log()
>> >
>> > > If required the GAE solution needs work.
>> > > A BIG thank you to Iceberg!
>> > > Feedback and usage is welcome ;-)
>> >
>> > > Important note: do *not* 'importlogging' in your controller if you
>> > > use log.py. its done for all your controllers already in the log.py
>> > > model and it would break the log.py magic.
>> > > '''
>> >
>> > > importlogging
>> >
>> > > def _init_log(level=logging.DEBUG,formatter="%(asctime)s
>> %(levelname)s
>> > > %(funcName)s():%(lineno)d %(message)
>> > > s",filename='app.log',maxBytes=1024*1024,backupCount=2):
>> > > import os,logging.handlers
>> > > logger=logging.getLogger(request.application)
>> > > logger.setLevel(level)
>> > > if request.env.web2py_runtime_gae: # if running on Google App
>> > > Engine
>> > >
>> handler=logging.handlers.HTTPHandler(request.env.http_host,URL
>> > > (r=request,f='log')) # assuming there is an optional log action
>> > > else:
>> > > handler=logging.handlers.RotatingFileHandler(os.path.join
>> > > (request.folder,filename),maxBytes=maxBytes,backupCount=backupCount)
>> > > handler.setLevel(level)
>> > > handler.setFormatter(logging.Formatter(formatter))
>> > > logger.addHandler(handler)
>> > > logger.debug("web2py application %s starting" %
>> > > request.application)
>> > > return logger
>> >
>> > > def get_log():
>> > > try:
>> > > f = open(logging.handlers[0].baseFilename, 'r')
>> > > c = f.readlines()
>> > > f.close()
>> > > return {'log':TABLE(*[TR(str(item)) for item in c])}
>> > > except:
>> > > return ()
>> >
>> > > logging=cache.ram('mylog',lambda:_init_log(),time_expire=99999999)
>> >
>> >
>
>
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