python - Django Celery IntegrityError

问题描述

我想为我的项目创建一个进度条。我有一个班级，这个班级有一些功能。特别是其中一个需要很长时间（def download_all），这是我想要创建进度条的主要原因。

我成功地设置了 celery、celery-progress 等，它们工作正常。我的问题是这样的：我想将进度条集成到download_all功能中。一世

它给出了一个错误：IntegrityError at /o.../k... NOT NULL 约束失败：django_celery_results_taskresult.task_id

我该如何解决？ 函数.py

class myClass():

    def __init__(self, n_user, n_password, n_url, n_port, db_password, username):
        ...
        self.download_all(n_user, n_password, n_url, n_port, db_password)
        ...

    @shared_task(bind=True, name="my_add")
    def download_all(n_user, n_password, n_url, n_port, db_password)
     ...
     len_scans = len(scans)
     progress_recorder = ProgressRecorder(self)
     for s in scans:
         i = 0
         progress_recorder.set_progress(i + 1, len_scans)
         i += 1

视图.py

def setup_wizard(request):
  ...
  functions.Zafiyet(setup.n_username, setup.n_password,
                                          setup.n_url, setup.n_port, setup.db_password,
                                          username=request.user.username)

追溯

Environment:


Request Method: POST
Request URL: http://127.0.0.1:8000/operasyonmerkezi/konfigurasyon

Django Version: 3.2.7
Python Version: 3.9.6
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'dashboard',
 'accounts',
 'logs',
 'crispy_forms',
 'django_apscheduler',
 'easy_timezones',
 'django_celery_results',
 'celery_progress']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback (most recent call last):
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\query.py", line 581, in get_or_create
    return self.get(**kwargs), False
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\query.py", line 435, in get
    raise self.model.DoesNotExist(

During handling of the above exception (TaskResult matching query does not exist.), another exception occurred:
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\backends\sqlite3\base.py", line 423, in execute
    return Database.Cursor.execute(self, query, params)

The above exception (NOT NULL constraint failed: django_celery_results_taskresult.task_id) was the direct cause of the following exception:
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\contrib\auth\decorators.py", line 21, in _wrapped_view
    return view_func(request, *args, **kwargs)
  File "C:\Users\edeni\Desktop\hawkdragon\dashboard\views.py", line 128, in setup_wizard
    task = (functions.myClass(setup.n_username, setup.n_password,
  File "C:\Users\edeni\Desktop\hawkdragon\dashboard\functions.py", line 44, in __init__
    self.download_all(n_user, n_password, n_url, n_port, db_password)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\celery\local.py", line 188, in __call__
    return self._get_current_object()(*a, **kw)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\celery\app\task.py", line 389, in __call__
    return self.run(*args, **kwargs)
  File "C:\Users\edeni\Desktop\hawkdragon\dashboard\functions.py", line 153, in download_all
    progress_recorder.set_progress(i + 1, len_scans)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\celery_progress\backend.py", line 46, in set_progress
    self.task.update_state(
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\celery\app\task.py", line 971, in update_state
    self.backend.store_result(
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\celery\backends\base.py", line 482, in store_result
    self._store_result(task_id, result, state, traceback,
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django_celery_results\backends\database.py", line 66, in _store_result
    self.TaskModel._default_manager.store_result(
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django_celery_results\managers.py", line 46, in _inner
    return fun(*args, **kwargs)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django_celery_results\managers.py", line 168, in store_result
    obj, created = self.using(using).get_or_create(task_id=task_id,
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\query.py", line 588, in get_or_create
    return self.create(**params), True
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\query.py", line 453, in create
    obj.save(force_insert=True, using=self.db)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\base.py", line 726, in save
    self.save_base(using=using, force_insert=force_insert,
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\base.py", line 763, in save_base
    updated = self._save_table(
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\base.py", line 868, in _save_table
    results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\base.py", line 906, in _do_insert
    return manager._insert(
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\query.py", line 1270, in _insert
    return query.get_compiler(using=using).execute_sql(returning_fields)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\models\sql\compiler.py", line 1416, in execute_sql
    cursor.execute(sql, params)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\backends\utils.py", line 98, in execute
    return super().execute(sql, params)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\backends\utils.py", line 66, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\edeni\Desktop\hawkdragon\myvenv\lib\site-packages\django\db\backends\sqlite3\base.py", line 423, in execute
    return Database.Cursor.execute(self, query, params)

Exception Type: IntegrityError at /operasyonmerkezi/konfigurasyon
Exception Value: NOT NULL constraint failed: django_celery_results_taskresult.task_id

标签： pythondjangocelerydjango-celery

python - Django Celery IntegrityError

问题描述

解决方案

推荐阅读