django_celery_results.managers

Model managers.

class django_celery_results.managers.GroupResultManager(*args, **kwargs)

Manager for GroupResult models.

get_group(group_id)

Get result for group by group_id.

Keyword Arguments

exception_retry_count (int) – How many times to retry by transaction rollback on exception. This could happen in a race condition if another worker is trying to create the same task. The default is to retry once.

store_group_result(content_type, content_encoding, group_id, result, using=None)

class django_celery_results.managers.ResultManager(*args, **kwargs)

Generic manager for celery results.

connection_for_read()

connection_for_write()

current_engine()

delete_expired(expires)

Delete all expired results.

get_all_expired(expires)

Get all expired results.

warn_if_repeatable_read()

class django_celery_results.managers.TaskResultManager(*args, **kwargs)

Manager for TaskResult models.

get_task(task_id)

Get result for task by task_id.

Keyword Arguments

exception_retry_count (int) – How many times to retry by transaction rollback on exception. This could happen in a race condition if another worker is trying to create the same task. The default is to retry once.

store_result(content_type, content_encoding, task_id, result, status, traceback=None, meta=None, periodic_task_name=None, task_name=None, task_args=None, task_kwargs=None, worker=None, using=None)

Store the result and status of a task.

Parameters

• content_type (str) – Mime-type of result and meta content.

• content_encoding (str) – Type of encoding (e.g. binary/utf-8).

• task_id (str) – Id of task.

• periodic_task_name (str) – Celery Periodic task name.

• task_name (str) – Celery task name.

• task_args (str) – Task arguments.

• task_kwargs (str) – Task kwargs.

• result (str) – The serialized return value of the task, or an exception instance raised by the task.

• status (str) – Task status. See celery.states for a list of possible status values.

• worker (str) – Worker that executes the task.

• using (str) – Django database connection to use.

• traceback (str) – The traceback string taken at the point of exception (only passed if the task failed).

• meta (str) – Serialized result meta data (this contains e.g. children).

Keyword Arguments

exception_retry_count (int) – How many times to retry by transaction rollback on exception. This could happen in a race condition if another worker is trying to create the same task. The default is to retry twice.

exception django_celery_results.managers.TxIsolationWarning

Warning emitted if the transaction isolation level is suboptimal.

django_celery_results.managers.transaction_retry(max_retries=1)

Decorate a function to retry database operations.

For functions doing database operations, adding retrying if the operation fails.

Keyword Arguments

max_retries (int) – Maximum number of retries. Default one retry.