Esta é a minha primeira tentativa com o aipo, por isso há obviamente alguns problemas. Aqui eu quero criar a Task Object
cada 1 minuto na base de dados, então eu usei django-celery-beat
. Eu quero usar a classe de agendamento personalizado mais tarde, então para este propósito eu usei o pacote django-celery-beat
Mas eu não estou obtendo os resultados.
Usei o formulário django para criar o objeto TaskModel e escrever uma tarefa no tasks.py para executar a visualização a cada 1 minuto. Mas ele joga este erro
Exception Type: EncodeError
Exception Value:
Object of type timedelta is not JSON serializable
Iniciei o celery em um console com o comando $ celery -A celery_demo beat -l info --scheduler django_celery_beat.schedulers:DatabaseScheduler
e iniciei o servidor django em outro console com o comando py manage.py runserver
settings.py
CELERY_BROKER_URL = 'amqp://localhost'
CELERY_BEAT_SCHEDULE = {
'task-first': {
'task': 'scheduler.tasks.create_task',
'schedule': timedelta(minutes=1)
},
aipo.py
from __future__ import absolute_import, unicode_literals
import os
from celery import Celery
# set the default Django settings module for the 'celery' program.
from django.conf import settings
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'celery_demo.settings')
app = Celery('celery_demo')
# Using a string here means the worker doesn't have to serialize
# the configuration object to child processes.
# - namespace='CELERY' means all celery-related configuration keys
# should have a `CELERY_` prefix.
app.config_from_object('django.conf:settings')
# Load task modules from all registered Django app configs.
app.autodiscover_tasks(settings.INSTALLED_APPS)
@app.task(bind=True)
def debug_task(self):
print('Request: {0!r}'.format(self.request))
init.py
from __future__ import absolute_import, unicode_literals
# This will make sure the app is always imported when
# Django starts so that shared_task will use this app.
from .celery import app as celery_app
__all__ = ('celery_app',)
app/tarefas.py
from celery.task import task
from django.shortcuts import redirect, render
from scheduler.models import Task
@task(name='create_task')
def add_task_celery(name=None, date=None, frequency=None):
Task.objects.create(name=name, date=date, frequency=frequency)
return redirect('list_tasks')
appp/views.py
def add_task(request):
form = AddTaskForm()
if request.method == 'POST':
form = AddTaskForm(request.POST)
if form.is_valid():
name = form.cleaned_data.get('name')
date = form.cleaned_data.get('date')
freq = form.cleaned_data.get('frequency')
add_task_celery.delay(name,date,freq)
return render(request, 'add_task.html', {'form': form})
modelos
id=pré-6