[ADD] web_widget_x2many_2d_matrix_example

web_widget_x2many_2d_matrix_example/wizard/__init__.py

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+from . import demo_wizard

web_widget_x2many_2d_matrix_example/wizard/demo_wizard.py

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+from odoo import fields, models
+
+
+class DemoWizard(models.TransientModel):
+    _name = 'x2m.matrix.demo.wiz'
+
+    line_ids = fields.Many2many(
+        'x2m.demo.line', default=lambda self: self._default_line_ids())
+
+    def _default_line_ids(self):
+        recs = self.env['x2m.demo'].search([])
+        # same with users
+        users = self.env['x2m.demo.line'].search([]).mapped('user_id')
+        return [
+            (0, 0, {
+                'name': "{}'s task on {}".format(usr.name, rec.name),
+                'demo_id': rec.id,
+                'user_id': usr.id,
+                'value': 0,
+            })
+            # if the project doesn't have a task for the user, create a new one
+            if not rec.line_ids.filtered(lambda x: x.user_id == usr) else
+            # otherwise, return the task
+            (4, rec.line_ids.filtered(lambda x: x.user_id == usr)[0].id)
+            for rec in recs
+            for usr in users
+        ]

web_widget_x2many_2d_matrix_example/wizard/x2m_matrix.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+  <record id="x2many_2d_matrix_demo" model="ir.ui.view">
+    <field name="name">x2m.matrix.demo.wiz</field>
+    <field name="model">x2m.matrix.demo.wiz</field>
+    <field name="type">form</field>
+    <field name="arch" type="xml">
+      <form>
+        <field name="line_ids" widget="x2many_2d_matrix" field_x_axis="demo_id" field_y_axis="user_id" field_value="value">
+          <tree>
+            <field name="demo_id"/>
+            <field name="user_id"/>
+            <field name="value"/>
+          </tree>
+        </field>
+      </form>
+    </field>
+  </record>
+
+</odoo>