knowledge/attachment_zipped_download

==========================
Attachment Zipped Download
==========================

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This module allows downloading multiple attachments as a zip file.

This also provide a helper class `IrAttachmentActionDownloadMixin`
to be used by developer to add action method on models.

**Table of contents**

.. contents::
   :local:

Usage
=====

#. Go to *Settings > Technical > Database Structure > Attachments* and select some files.
#. Go to *Actions > Download* and a zip file containing the selected files will be downloaded.

## For developer

You can reuse the `IrAttachmentActionDownloadMixin` on your
favorite models::

    from odoo import models


    class StockPicking(models.Model):
        _name = "stock.picking"
        _inherit = ["stock.picking", "ir.attachment.action_download"]


Then you can add an action button on list view line or on the action button
(when multiple lines are selected) to download all files::

    <odoo>
        <!--
            add a button on list view to download all attachement present
            on the given transfert
        -->
        <record id="vpicktree" model="ir.ui.view">
            <field name="inherit_id" ref="stock.vpicktree"/>
            <field name="name">stock.picking.tree download attachments</field>
            <field name="model">stock.picking</field>
            <field name="arch" type="xml">
                <field name="json_popover" position="after">
                    <button name="action_download_attachments"
                        type="object"
                        icon="fa-download"
                        string="Download attachment(s)"
                        aria-label="Download Proof documents"
                        class="float-right"/>
                </field>
            </field>
        </record>

        <!--
            Add "Download attachments" item in the Action menu when
            multiple records are selected
        -->
        <record id="action_download_picking_attachements" model="ir.actions.server">
            <field name="name">Download attachments</field>
            <field name="model_id" ref="stock.model_stock_picking"/>
            <field name="binding_model_id" ref="stock.model_stock_picking"/>
            <field name="binding_view_types">list</field>
            <field name="state">code</field>
            <field name="code">
                action = records.action_download_attachments()
            </field>
        </record>
    </odoo>


.. note::

    Even you will be able to generate a zip file with multiple document with the
    same name it's advice to overwrite `_compute_zip_file_name` to improve the
    name. When a slash (`/`) is present in the path it will create a directory.
    This example will create a directory per stock.picking using its name::

        class IrAttachment(models.Model):
            _inherit = "ir.attachment"

            def _compute_zip_file_name(self):
                self.ensure_one()
                if self.res_model and self.res_model == "stock.picking":
                    return (
                        self.env[self.res_model]
                        .browse(self.res_id)
                        .display_name.replace("/", "-")
                        + "/"
                        + self.name
                    )
                return super()._compute_zip_file_name()

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

Bugs are tracked on `GitHub Issues <https://github.com/OCA/knowledge/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/knowledge/issues/new?body=module:%20attachment_zipped_download%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
~~~~~~~

* Tecnativa

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

* César Fernández Domínguez <cesfernandez@outlook.com>

* `Tecnativa <https://www.tecnativa.com>`_:

  * Víctor Martínez
  * Pedro M. Baeza

* Pierre Verkest <pierreverkest@gmail.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/knowledge <https://github.com/OCA/knowledge/tree/16.0/attachment_zipped_download>`_ project on GitHub.

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