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Show list fields as a matrix

Project description

.. image::
:alt: License: AGPL-3

2D matrix for x2many fields

This module allows to show an x2many field with 3-tuples
($x_value, $y_value, $value) in a table

========= =========== ===========
\ $x_value1 $x_value2
========= =========== ===========
$y_value1 $value(1/1) $value(2/1)
$y_value2 $value(1/2) $value(2/2)
========= =========== ===========

where `value(n/n)` is editable.

An example use case would be: Select some projects and some employees so that
a manager can easily fill in the planned_hours for one task per employee. The
result could look like this:

.. image:: /web_widget_x2many_2d_matrix/static/description/screenshot.png
:alt: Screenshot

The beauty of this is that you have an arbitrary amount of columns with this
widget, trying to get this in standard x2many lists involves some quite ugly


Use this widget by saying::

<field name="my_field" widget="x2many_2d_matrix" />

This assumes that my_field refers to a model with the fields `x`, `y` and
`value`. If your fields are named differently, pass the correct names as

<field name="my_field" widget="x2many_2d_matrix" field_x_axis="my_field1" field_y_axis="my_field2" field_value="my_field3" />

You can pass the following parameters:

The field that indicates the x value of a point
The field that indicates the y value of a point
Use another field to display in the table header
Use another field to display in the table header
It indicates if the X axis allows to be clicked for navigating to the field
(if it's a many2one field). True by default
It indicates if the Y axis allows to be clicked for navigating to the field
(if it's a many2one field). True by default
Show this field as value
If field_value is a numeric field, it indicates if you want to calculate
row totals. True by default
If field_value is a numeric field, it indicates if you want to calculate
column totals. True by default
Declare as many options prefixed with this string as you need for binding
a field value with an HTML node attribute (disabled, class, style...)
called as the `<name>` passed in the option.

.. image::
:alt: Try me on Runbot


You need a data structure already filled with values. Let's assume we want to
use this widget in a wizard that lets the user fill in planned hours for one
task per project per user. In this case, we can use ``project.task`` as our
data model and point to it from our wizard. The crucial part is that we fill
the field in the default function::

class MyWizard(models.TransientModel):
_name = 'my.wizard'

def _default_task_ids(self):
# your list of project should come from the context, some selection
# in a previous wizard or wherever else
projects = self.env['project.project'].browse([1, 2, 3])
# same with users
users = self.env['res.users'].browse([1, 2, 3])
return [
(0, 0, {'project_id':, 'user_id':, 'planned_hours': 0})
# if the project doesn't have a task for the user, create a new one
if not p.task_ids.filtered(lambda x: x.user_id == u) else
# otherwise, return the task
(4, p.task_ids.filtered(lambda x: x.user_id == u)[0].id)
for p in projects
for u in users

task_ids = fields.Many2many('project.task', default=_default_task_ids)

Now in our wizard, we can use::

<field name="task_ids" widget="x2many_2d_matrix" field_x_axis="project_id" field_y_axis="user_id" field_value="planned_hours" />

Note that all values in the matrix must exist, so you need to create them
previously if not present, but you can control visually the editability of
the fields in the matrix through `field_att_disabled` option with a control

Known issues / Roadmap

* It would be worth trying to instantiate the proper field widget and let it render the input
* Let the widget deal with the missing values of the full Cartesian product,
instead of being forced to pre-fill all the possible values.
* If you pass values with an onchange, you need to overwrite the model's method
`onchange` for making the widget work::

def onchange(self, values, field_name, field_onchange):
if "one2many_field" in field_onchange:
for sub in [<field_list>]:
field_onchange.setdefault("one2many_field." + sub, u"")
return super(model, self).onchange(values, field_name, field_onchange)

Bug Tracker

Bugs are tracked on `GitHub Issues
<>`_. In case of trouble, please
check there if your issue has already been reported. If you spotted it first,
help us smashing it by providing a detailed and welcomed feedback.



* Holger Brunn <>
* Pedro M. Baeza <>


.. image::
:alt: Odoo Community Association

This module is maintained by the OCA.

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.

To contribute to this module, please visit

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