=================
Components Events
=================

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This module implements an event system (`Observer pattern`_) and is a
base block for the Connector Framework. It can be used without
using the full Connector though. It is built upon the ``component`` module.

Documentation: http://odoo-connector.com/

.. _Observer pattern: https://en.wikipedia.org/wiki/Observer_pattern

**Table of contents**

.. contents::
   :local:

Usage
=====

As a developer, you have access to a events system. You can find the
documentation in the code or on http://odoo-connector.com

In a nutshell, you can create trigger events::

  class Base(models.AbstractModel):
      _inherit = 'base'

      @api.model
      def create(self, vals):
          record = super(Base, self).create(vals)
          self._event('on_record_create').notify(record, fields=vals.keys())
          return record

And subscribe listeners to the events::

  from odoo.addons.component.core import Component
  from odoo.addons.component_event import skip_if

  class MagentoListener(Component):
      _name = 'magento.event.listener'
      _inherit = 'base.connector.listener'

      @skip_if(lambda self, record, **kwargs: self.no_connector_export(record))
      def on_record_create(self, record, fields=None):
          """ Called when a record is created """
          record.with_delay().export_record(fields=fields)


This module triggers 3 events:

* ``on_record_create(record, fields=None)``
* ``on_record_write(record, fields=None)``
* ``on_record_unlink(record)``

Changelog
=========

.. [ The change log. The goal of this file is to help readers
    understand changes between version. The primary audience is
    end users and integrators. Purely technical changes such as
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Next
~~~~

12.0.1.0.0 (2018-11-26)
~~~~~~~~~~~~~~~~~~~~~~~

* [MIGRATION] from 12.0 branched at rev. 324e006

Bug Tracker
===========

Bugs are tracked on `GitHub Issues <https://github.com/OCA/connector/issues>`_.
In case of trouble, please check there if your issue has already been reported.
If you spotted it first, help us to smash it by providing a detailed and welcomed
`feedback <https://github.com/OCA/connector/issues/new?body=module:%20component_event%0Aversion:%2016.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.

Do not contact contributors directly about support or help with technical issues.

Credits
=======

Authors
~~~~~~~

* Camptocamp

Contributors
~~~~~~~~~~~~

* Guewen Baconnier <guewen.baconnier@camptocamp.com>

Maintainers
~~~~~~~~~~~

This module is maintained by the OCA.

.. image:: https://odoo-community.org/logo.png
   :alt: Odoo Community Association
   :target: https://odoo-community.org

OCA, or the Odoo Community Association, is a nonprofit organization whose
mission is to support the collaborative development of Odoo features and
promote its widespread use.

This module is part of the `OCA/connector <https://github.com/OCA/connector/tree/16.0/component_event>`_ project on GitHub.

You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.