Odoo 16 Development Book

Dynamic record stages

Stages are used in Odoo to specify the record's current state. In many cases, these fields are static and cannot be changed. Thus it is possible to use many2one fields to give access to update and create new states in accordance with. Let’s understand how it works, along with an example.

In order to manage the stages individually, let’s create a new model;

class DynamicStages(models.Model):
   _name = "dynamic.stages"
   _rec_name = 'name'
   name = fields.Char(string='Name')
   sequence = fields.integer(string='Sequence')
   fold = fields.Boolean(string='Folded in Kanban')
   name = fields.Char(string='Sequence')

This model needs to be added in the required parent model in a many2one relation.

def _get_stage_id(self):
   dynamic_stages = self.env['dynamic.stages'].search([], limit=1)
   return dynamic_stages.id
stage_id = fields.Many2one('dynamic.stages', string="Dynamic State", default='_get_stage_id', readonly=True,
                          required=True, help="Employee")

Now this field can be added to the view as the following;

<header >
                 <field name="stage_id" widget="statusbar" options="{'clickable': '1', 'fold_field': 'fold'}"/ >
              </header >

Once the fields are declared as such, we can then change and fold the stages. In this way, the stage definitions can be manipulated.