Python 芹菜任务将结果返回到父任务

我有一个芹菜网抓取任务，我想把所有创建的子对象返回给父对象。我怎样才能把这些ID还给家长

我正在尝试做的粗略示例

@task
def scrape_page(url):
    page = Page.objects.create(
        name='new_page'
    )

    response = requests.get(url)
    children = parse_children(response)

    for child in children:
        result = scrape_child.delay(child.url)
        page.childen.add(result)

@task
def scrape_child(url):
    response = requests.get(url)
    parsed = parse_child(response)
    child = Child.objects.create(**parsed)
    return child

---

您不应该在任务中等待延迟的任务，您可以使用

.apply（）

同步调用该任务，但这不会调用单独的任务。 编辑：我找到了文档，请参阅

也许你应该用。一种方法是延迟组

scrape\u child

任务并发送父级

page\u id

from celery import group

@task
def scrape_page(url):
    page = Page.objects.create(
        name='new_page'
    )

    response = requests.get(url)
    children = parse_children(response)

    children_group = group([
        scrape_child.s(page.id, child.url)  # using the signature
        for child in children
    ])
    children_group.delay()
    return True

@task
def scrape_child(page_id, url):
    response = requests.get(url)
    parsed = parse_child(response)
    child = Child.objects.create(**parsed)
    child.page_id = page_id
    return child