How to keep the order of the records added in a many2many field the way I wrote them? - odoo-15

Question

I want to keep the order of the records in the many2many field, the way I added them using the write method, but Odoo use the alphanumerical order by default and overwrote the order I put them in. How can I keep it in the same order when I wrote them, is that possible ?
Here is the model code:
# -*- coding: utf-8 -*-
from odoo import models, fields, api
class projet_richat(models.Model):
_inherit = 'project.task'
competence_ids = fields.Many2many('competence.competence',string='Compétences')
consultants=fields.Many2many('hr.employee', string="Consultants")
def search_comp(self):
if len(self.competence_ids) != 0:
consults=self.env['hr.employee'].sudo().search([])
list=[]
for cmp in self.competence_ids:
print(cmp.competence)
for cons in consults:
print(cons.name)
for c in cons.competences:
if c.competence.competence==cmp.competence:
list.append((cons.id,c.competence.competence,c.niveau))
sorted_by_level = sorted(list, key=lambda tup: tup[2], reverse=True)
print(sorted_by_level)
for sorted_cons in sorted_by_level:
self.write({'consultants': [[4, sorted_cons[0]]]})
and here is the view code:
<odoo>
<data>
<record model="ir.ui.view" id="project_inherit_form">
<field name="name">project.inherit.form</field>
<field name="model">project.task</field>
<field name="type">form</field>
<field name="inherit_id" ref="project.view_task_form2"/>
<field name="arch" type="xml">
<field name="user_ids" position="before">
<field name="competence_ids" widget="many2many_tags"/>
</field>
<field name="parent_id" position="after">
<field name="consultants">
<tree>
<field name="name"/>
</tree>
</field>
</field>
<button name="action_assign_to_me" position="after">
<button name="search_comp" string="Test" class="btn-primary"
type="object"
/>
</button>
</field>
</record>
</data>
</odoo>
Thanks in advance.

Answer 1

The many2many field will use the list view to show its content, the default order is defined by the _order attribute on the related model.
You can alter the default ordering by setting the default_order parameter on the tree tag
From the List view documentation:
default_orderoverrides the ordering of the view, replacing the model’s order (_order model attribute). The value is a comma-separated list of fields, postfixed by desc to sort in reverse order:
<tree default_order="sequence,name desc">
To keep the order you want, you can add an integer field sequence and use it to order records (_order='sequence') then in search_comp function set the sequence field value for each line