App context inside Command

[Bastien Sevajol]

Hi,

I can't access to app configuration inside my command:

# -*- coding: utf-8 -*-
from gearbox.command import Command
from tg import config

class CrawlCommand(Command):
    def take_action(self, parsed_args):
        print(config.get('sqlalchemy.url'))

produce:

> gearbox crawl        
None

I would like be able to read app config like in tgshell:

> gearbox tgshell
>>> from tg import config
>>> config.get('sqlalchemy.url')
'postgresql://pyjobs:pyjobs@localhost/pyjobs'

How to load environnement/config inside gearbox.command.Command ?

Thanks,
Bastien.


[Alessandro Molina]

The magic lines you are looking for are https://github.com/TurboGears/tg2devtools/blob/master/devtools/gearbox/tgshell.py#L50-L54

Performing a request to /_test_vars makes a fake request that forces application initialization and loads the TurboGears context in memory, so you will have tg.config, tg.request and so on available. Much of what is explained in http://turbogears.readthedocs.org/en/latest/turbogears/testing.html#testing-outside-controllers also applies perfectly to writing scripts (like gearbox commands) that use TG.

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[Bastien Sevajol]

Hi,

Perfect. I used it with success.

Thank you !

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