==========================
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
=====

1. Go to *Settings > Technical > Database Structure > Attachments* and
   select some files.
2. 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:%2018.0%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/18.0/attachment_zipped_download>`_ project on GitHub.

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