[Flask] Logging from non-flask objects

[Ziirish]

Well, the error speaks for itself.

How is your object instantiated/called in your application?



* On Friday, July 08, 2016 at 11:22 AM -0400, Guy Matz <guymatz at gmail.com> wrote:
> Thanks!  So I tried something like this:
> 
> from flask import current_app
> class MyObject:
>   def __init__(self):
>     self.logger = current_app.logger
>     self.logger.info('sdfdf")
> 
> And now I'm getting something like this:
> ERROR/MainProcess] Task
> main.async_process_on_startup[27608e0c-c9a5-4ef0-ac47-244759acd465] raised
> unexpected: RuntimeError('Working outside of application context.\n\nThis
> typically means that you attempted to use functionality that needed\nto
> interface with the current application object in a way.  To solve\nthis set
> up an application context with app.app_context().  See the\ndocumentation
> for more information.',)
> 
> Any idea what I did wrong?
> 
> Thanks again!!
> 
> On Fri, Jul 8, 2016 at 5:49 AM, Ziirish <ziirish at ziirish.info> wrote:
> 
> > Hello,
> >
> > As usual, there is more than one way to do it.
> > I don't know what is the best way to do it though so here are a few
> > examples.
> >
> > 1. Use the current_app object. In the module defining your object you can
> > do
> > this:
> >
> > from flask import current_app
> >
> > class MyObject:
> >     def foo(self):
> >         current_app.logger.info('bar')
> >
> >
> > 2. Like you suggested, you could pass to your object the flask app (that's
> > basically what most of the flask extensions do):
> >
> > class MyObject:
> >     def __init__(self, app=None):
> >         self.app = app
> >
> >     def init_app(self, app):
> >         self.app = app
> >
> >     def foo(self):
> >         self.app.logger.info('bar')
> >
> >
> > There are probably other ways but those are the two most common IMHO.
> >
> >
> > * On Thursday, July 07, 2016 at 05:27 PM -0400, Guy Matz <
> > guymatz at gmail.com> wrote:
> > > Hi!  Can anyone recommend a way to log from objects that are not flask
> > > objects?  I.e. if my flask code creates a new object that does some
> > > processing, etc., how can I get access to the logger from that object?
> > Do
> > > I need to pass in the logger to the new object?  Or is there a better
> > way?
> > >
> > > Thanks!
> > > Guy
> >