web_widget_x2many_2d_matrix

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:

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 hacks.

Usage

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 attributes:

<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:

field_x_axis

The field that indicates the x value of a point

field_y_axis

The field that indicates the y value of a point

field_label_x_axis

Use another field to display in the table header

field_label_y_axis

Use another field to display in the table header

x_axis_clickable

It indicates if the X axis allows to be clicked for navigating to the field (if it's a many2one field). True by default

y_axis_clickable

It indicates if the Y axis allows to be clicked for navigating to the field (if it's a many2one field). True by default

field_value

Show this field as value

show_row_totals

If field_value is a numeric field, it indicates if you want to calculate row totals. True by default

show_column_totals

If field_value is a numeric field, it indicates if you want to calculate column totals. True by default

field_att_<name>

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.

Example

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': p.id, 'user_id': u.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 field.

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:

@api.multi 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.

Credits

Contributors

• Holger Brunn <hbrunn@therp.nl>
• Pedro M. Baeza <pedro.baeza@tecnativa.com>

Maintainer

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 https://odoo-community.org.