Queue

Modèles

class odoo.addons.queue_job.models.base.Base

Bases : odoo.models.BaseModel

The base model, which is implicitly inherited by all models.

A new with_delay() method is added on all Odoo Models, allowing to postpone the execution of a job method in an asynchronous process.

with_delay(priority=None, eta=None, max_retries=None, description=None, channel=None, identity_key=None)

Return a DelayableRecordset

The returned instance allow to enqueue any method of the recordset’s Model which is decorated by job().

Utilisation

self.env['res.users'].with_delay().write({'name': 'test'})

In the line above, in so far write is allowed to be delayed with @job, the write will be executed in an asynchronous job.

Paramètres:

• priority – Priority of the job, 0 being the higher priority. Default is 10.
• eta – Heure estimée de lancement (ETA) du job. Il ne sera pas exécuté avant cette date/heure.
• max_retries – maximum number of retries before giving up and set the job state to “failed”. A value of 0 means infinite retries. Default is 5.
• description – human description of the job. If None, description is computed from the function doc or name
• channel – the complete name of the channel to use to process the function. If specified it overrides the one defined on the function
• identity_key – key uniquely identifying the job, if specified and a job with the same key has not yet been run, the new job will not be added.

Renvoie:

instance of a DelayableRecordset

Type renvoyé:

odoo.addons.queue_job.job.DelayableRecordset

Note for developers: if you want to run tests or simply disable jobs queueing for debugging purposes, you can:

1. set the env var TEST_QUEUE_JOB_NO_DELAY=1
2. pass a ctx key test_queue_job_no_delay=1

In tests you’ll have to mute the logger like:

@mute_logger(“odoo.addons.queue_job.models.base”)

class odoo.addons.queue_job.models.queue_job.QueueJob

Model storing the jobs to be executed.

_name = 'queue.job'

_inherit = ['mail.thread', 'mail.activity.mixin']

Job

Decorators

odoo.addons.queue_job.job.job(func=None, default_channel='root', retry_pattern=None)

Decorator for job methods.

It enables the possibility to use a Model’s method as a job function.

Optional argument:

Paramètres:

• default_channel – the channel wherein the job will be assigned. This channel is set at the installation of the module and can be manually changed later using the views.
• retry_pattern (dict(retry_count,retry_eta_seconds)) – The retry pattern to use for postponing a job. If a job is postponed and there is no eta specified, the eta will be determined from the dict in retry_pattern. When no retry pattern is provided, jobs will be retried after RETRY_INTERVAL seconds.

Indicates that a method of a Model can be delayed in the Job Queue.

When a method has the @job decorator, its calls can then be delayed with:

recordset.with_delay(priority=10).the_method(args, **kwargs)

Where the_method is the method decorated with @job. Its arguments and keyword arguments will be kept in the Job Queue for its asynchronous execution.

default_channel indicates in which channel the job must be executed

retry_pattern is a dict where keys are the count of retries and the values are the delay to postpone a job.

Exemple :

class ProductProduct(models.Model):
    _inherit = 'product.product'

    @api.multi
    @job
    def export_one_thing(self, one_thing):
        # work
        # export one_thing

# [...]

env['a.model'].export_one_thing(the_thing_to_export)
# => normal and synchronous function call

env['a.model'].with_delay().export_one_thing(the_thing_to_export)
# => the job will be executed as soon as possible

delayable = env['a.model'].with_delay(priority=30, eta=60*60*5)
delayable.export_one_thing(the_thing_to_export)
# => the job will be executed with a low priority and not before a
# delay of 5 hours from now

@job(default_channel='root.subchannel')
def export_one_thing(one_thing):
    # work
    # export one_thing

@job(retry_pattern={1: 10 * 60,
                    5: 20 * 60,
                    10: 30 * 60,
                    15: 12 * 60 * 60})
def retryable_example():
    # 5 first retries postponed 10 minutes later
    # retries 5 to 10 postponed 20 minutes later
    # retries 10 to 15 postponed 30 minutes later
    # all subsequent retries postponed 12 hours later
    raise RetryableJobError('Must be retried later')

env['a.model'].with_delay().retryable_example()

Voir aussi : related_action() une action connexe peut être attachée à un job

odoo.addons.queue_job.job.related_action(action=None, **kwargs)

Attach a Related Action to a job (decorator)

Un action connexe apparaîtra comme un bouton dans la vue Odoo. Le bouton exécutera l’action, habituellement une ouverture de formulaire de l’enregistrement lié au job.

The action must be a method on the queue.job model.

Exemple d’utilisation :

class QueueJob(models.Model):
    _inherit = 'queue.job'

    @api.multi
    def related_action_partner(self):
        self.ensure_one()
        model = self.model_name
        partner = self.env[model].browse(self.record_ids)
        # possibly get the real ID if partner_id is a binding ID
        action = {
            'name': _("Partner"),
            'type': 'ir.actions.act_window',
            'res_model': model,
            'view_type': 'form',
            'view_mode': 'form',
            'res_id': partner.id,
        }
        return action

class ResPartner(models.Model):
    _inherit = 'res.partner'

    @api.multi
    @job
    @related_action(action='related_action_partner')
    def export_partner(self):
        # ...

Les kwargs sont transmis à l’action :

class QueueJob(models.Model):
    _inherit = 'queue.job'

    @api.multi
    def related_action_product(self, extra_arg=1):
        assert extra_arg == 2
        model = self.model_name
        ...

class ProductProduct(models.Model):
    _inherit = 'product.product'

    @api.multi
    @job
    @related_action(action='related_action_product', extra_arg=2)
    def export_product(self):
        # ...

Internals

class odoo.addons.queue_job.job.DelayableRecordset(recordset, priority=None, eta=None, max_retries=None, description=None, channel=None, identity_key=None)

Bases : object

Allow to delay a method for a recordset

Utilisation

delayable = DelayableRecordset(recordset, priority=20)
delayable.method(args, kwargs)

method must be a method of the recordset’s Model, decorated with job().

The method call will be processed asynchronously in the job queue, with the passed arguments.

This class will generally not be used directly, it is used internally by with_delay()

class odoo.addons.queue_job.job.Job(func, args=None, kwargs=None, priority=None, eta=None, job_uuid=None, max_retries=None, description=None, channel=None, identity_key=None)

Bases : object

A Job is a task to execute. It is the in-memory representation of a job.

Jobs are stored in the queue.job Odoo Model, but they are handled through this class.

uuid

Id (UUID) du job.

state

État du job, peut être en attente, en queue, démarré, terminé, échoué. L’état initial est en attente et l’état final est terminé.

retry

L’essai actuel, démarre à 0 et s’incrémente de 1 chaque fois que le job est exécuté.

max_retries

Le nombre maximum d’essais permis avant que le job soit considéré comme échoué.

args

Arguments transmis à la fonction pendant l’exécution.

kwargs

Arguments nommés transmis à la fonction pendant l’exécution.

description

Description du job à destination des utilisateurs.

func

La fonction Python elle-même.

model_name

Modèle Odoo pour lequel le job va fonctionner.

priority

Priorité du job, 0 étant la plus haute priorité.

date_created

Date et heure de création du job.

date_enqueued

Date et heure de mise en queue du job.

date_started

Date et heure de démarrage du job.

date_done

Date et heure d’arrêt du job.

result

Une description du résultat (à destination des utilisateurs).

exc_info

Informations sur l”Exception (`traceback”) ayant causé l’échec du job

user_id

Id de l’utilisateur Odoo qui a créé le job

eta

Heure estimée de lancement (ETA) du job. Il ne sera pas exécuté avant cette date/heure.

recordset

Model recordset when we are on a delayed Model method

classmethod load(env, job_uuid)

Lit un job depuis la base de données

job_record_with_same_identity_key()

Check if a job to be executed with the same key exists.

classmethod enqueue(func, args=None, kwargs=None, priority=None, eta=None, max_retries=None, description=None, channel=None, identity_key=None)

Crée un job et le met en queue. Renvoie le UUID du job.

S’attend à ce que les arguments spécifiques au job soient déjà extraites de ceux à passer à la fonction du job.

If the identity key is the same than the one in a pending job, no job is created and the existing job is returned

static db_record_from_uuid(env, job_uuid)

perform()

Exécute le job.

Le job est exécuté avec l’utilisateur qui l’a initié.

store()

Stocke le job

db_record()

property func

property identity_key

property description

property uuid

Id du job, c’est un UUID

property eta

set_pending(result=None, reset_retry=True)

set_enqueued()

set_started()

set_done(result=None)

set_failed(exc_info=None)

postpone(result=None, seconds=None)

Postpone the job

Écrit un heure estimée de lancement dans n secondes. Utilisé quand une Exception non fatale souhaite relancer un job.

related_action()