Re: Working with kronos

[Jason]

:-)  Good!  I know it can be intimidating, have been there a few times 
before.  But it gets easier the more you do it!

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Re: Working with kronos

[Joel]

Thanks for the advise regarding understanding the issue in depth. My
initiation to python has been all of three months, and to django since two.
So far, I'd been scared to look under the hood, and any further than the
documentation. But I realize that it's not as daunting now add it used to
be. And coming from perl, I'm impressed at how cleaner it is.

Now I'm feeling power packed to examine the innards of django and python.
Thank you!

On Fri, 23 Nov, 2018, 9:06 AM Jason  the documentation is ambiguous in that regard.  that said, I feel it says
> you can register the cron tasks either way, but it doesn't do anything to
> actually install the commands.  you can see the code of the installtasks
> management command:
>
>
> https://github.com/jgorset/django-kronos/blob/v1.0/kronos/management/commands/installtasks.py
>
> which then runs the functions in
> https://github.com/jgorset/django-kronos/blob/v1.0/kronos/__init__.py#L117-L154
>
> as you can see there, it uses the python crontab package to install the
> crontab task.
>
> Furthermore, in
> https://github.com/jgorset/django-kronos/blob/v1.0/kronos/__init__.py#L107-L114,
> you can see what exactly the decorator consists of.  It just adds the task
> to a task registry set and doesn't do anything about actual installation.
>
> as an aside, one of the things I've found to be pretty valuable is to look
> at the project repository when it comes to questions like this.  this is
> not meant to be mean, and I'm sorry if it comes across that way.  I didn't
> know about this project before your question, but a brief look in the repo
> revealed those links and functions above, which are the most likely answers
> to your question above.  you're asking good questions here and giving good
> help in return, so if you internalize a method of investigating problems
> like this, or have more specific and focused questions that your
> investigations have unearthed.
>
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Re: Working with kronos

[Joel]

Yes, the language of the documentation certainly needs tweaking. I had done
the installtasks and it did work. Thank you very much for your help.
Now, I can have my app check for upcoming appointments and send reminders.
It was a much needed functionality.

On Fri, 23 Nov, 2018, 9:06 AM Jason  the documentation is ambiguous in that regard.  that said, I feel it says
> you can register the cron tasks either way, but it doesn't do anything to
> actually install the commands.  you can see the code of the installtasks
> management command:
>
>
> https://github.com/jgorset/django-kronos/blob/v1.0/kronos/management/commands/installtasks.py
>
> which then runs the functions in
> https://github.com/jgorset/django-kronos/blob/v1.0/kronos/__init__.py#L117-L154
>
> as you can see there, it uses the python crontab package to install the
> crontab task.
>
> Furthermore, in
> https://github.com/jgorset/django-kronos/blob/v1.0/kronos/__init__.py#L107-L114,
> you can see what exactly the decorator consists of.  It just adds the task
> to a task registry set and doesn't do anything about actual installation.
>
> as an aside, one of the things I've found to be pretty valuable is to look
> at the project repository when it comes to questions like this.  this is
> not meant to be mean, and I'm sorry if it comes across that way.  I didn't
> know about this project before your question, but a brief look in the repo
> revealed those links and functions above, which are the most likely answers
> to your question above.  you're asking good questions here and giving good
> help in return, so if you internalize a method of investigating problems
> like this, or have more specific and focused questions that your
> investigations have unearthed.
>
> --
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> 
> .
> For more options, visit https://groups.google.com/d/optout.
>

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Re: Working with kronos

[Jason]

the documentation is ambiguous in that regard.  that said, I feel it says 
you can register the cron tasks either way, but it doesn't do anything to 
actually install the commands.  you can see the code of the installtasks 
management command:

https://github.com/jgorset/django-kronos/blob/v1.0/kronos/management/commands/installtasks.py

which then runs the functions in 
https://github.com/jgorset/django-kronos/blob/v1.0/kronos/__init__.py#L117-L154

as you can see there, it uses the python crontab package to install the 
crontab task.

Furthermore, in 
https://github.com/jgorset/django-kronos/blob/v1.0/kronos/__init__.py#L107-L114,
 
you can see what exactly the decorator consists of.  It just adds the task 
to a task registry set and doesn't do anything about actual installation.

as an aside, one of the things I've found to be pretty valuable is to look 
at the project repository when it comes to questions like this.  this is 
not meant to be mean, and I'm sorry if it comes across that way.  I didn't 
know about this project before your question, but a brief look in the repo 
revealed those links and functions above, which are the most likely answers 
to your question above.  you're asking good questions here and giving good 
help in return, so if you internalize a method of investigating problems 
like this, or have more specific and focused questions that your 
investigations have unearthed.

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Re: Working with kronos

[Joel Mathew]

I understood the documentation to mean that either we can create management
commands and register with cronos, or create cron.py.
Sincerely yours,

 Joel G Mathew



On Thu, 22 Nov 2018 at 18:42, Jason  wrote:

> https://github.com/jgorset/django-kronos/tree/v1.0#register-tasks-with-cron
>
> sounds like you need to run a register management command first.
>
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Re: Working with kronos

[Jason]

https://github.com/jgorset/django-kronos/tree/v1.0#register-tasks-with-cron

sounds like you need to run a register management command first.

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Working with kronos

[Joel Mathew]

I was trying the basic django-kronos command to test:
I did pip3 install django-kronos,

myproject/myapp/cron.py:
import kronos
import random

@kronos.register('* * * * *')
def complain():
complaints = [
"I forgot to migrate our applications's cron jobs to our new server! Darn!",
"I'm out of complaints! Damnit!"
]

print random.choice(complaints)

In my myproject/myproject/settings.py:

INSTALLED_APPS = [
'appointments.apps.AppointmentsConfig',
'clinic.apps.ClinicConfig',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django_extensions',
'bootstrap4',
'widget_tweaks',
'parsley',
'session_security',
'kronos'
]

Ran:
./manage.py runserver
I expected the dev server to throw up a message every minute. Nothing seems
to be happening.

Sincerely yours,

 Joel G Mathew

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