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Beto Martinez

I've found many sources without any successful result.


I need to show all kanban's stages even if there aren't objects in the stage, as the title says, I'm using a selection field as steps list, this selection field is the state special field.


I know how to show all stages using a Many2one field, but not using Selection field, also I've found nothing on the internet.


Is not necessary put code here in this question though.

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Beto Martinez
Üretici En İyi Yanıt

After a lot of searching stuff, I found a solution I did override the read_group method:


@api.model
    def read_group(self,
                   domain,
                   fields,
                   groupby,
                   offset=0,
                   limit=None,
                   orderby=False,
                   lazy=True):
        """ Override read_group to always display all states. """
        if groupby and groupby[0] == "state":
            # Default result structure
            states = [('new', _('New')), ('assign', _('Assigned')),
                      ('evaluate', _('Evaluating')), ('done', _('Done')),
                      ('cancel', _('Cancel'))]
            read_group_all_states = [{
                '__context': {
                    'group_by': groupby[1:]
                },
                '__domain':
                domain + [('state', '=', state_value)],
                'state':
                state_value,
                'state_count':
                0,
            } for state_value, state_name in states]
            # Get standard results
            read_group_res = super(Maintenance, self).read_group(
                domain,
                fields,
                groupby,
                offset=offset,
                limit=limit,
                orderby=orderby)
            # Update standard results with default results
            result = []
            for state_value, state_name in states:
                res = filter(lambda x: x['state'] == state_value,
                             read_group_res)
                if not res:
                    res = filter(lambda x: x['state'] == state_value,
                                 read_group_all_states)
                res[0]['state'] = [state_value, state_name]
                result.append(res[0])
            return result
        else:
            return super(Maintenance, self).read_group(
                domain,
                fields,
                groupby,
                offset=offset,
                limit=limit,
                orderby=orderby)
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Ali Yasser (ary)

I used your code, it's working on v13 with following modifications:

1- the line filter(lambda x: x['state'] == state_value, read_group_res) will return a filter object, so it should be wrapped with list().

same for filter(lambda x: x['state'] == state_value, read_group_all_states).

2- the line res[0]['state'] = [state_value, state_name] will result in state names be false in the front end, because the default structure now uses only 'state_value' not a list of [state_value, state_name]

3- you ignored the parameter 'lazy' when calling the super function it should be there to properly execute the function.

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Ravi Gadhia
En İyi Yanıt

I think there is no need to override read_group.
Define group_expand attribute on the field and kanban view display all the stages even if there is no record in this stage

ref: https://github.com/odoo/odoo/blob/13.0/addons/mass_mailing/models/mailing.py#L86-L87
https://github.com/odoo/odoo/blob/13.0/addons/mass_mailing/models/mailing.py#L256

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Cyrus Waithaka

This is the correct answer.
Here's an example on how to achieve it.

state = fields.Selection(SELECTION_OPTIONS, .........., group_expand="_group_expand_states")
def _group_expand_states(self, states, domain, order):
return [state[0] for state in SELECTION_OPTIONS]

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Locusulting OÜ
En İyi Yanıt

Just in case someone would come by here and want to know:


If you go in the Debug -> Modify Action, and add in the context {'default_project_id': x} (x being the actual project ID), it will do the trick.


At least from 15>, didn't try on


Coming from standard:




    @api.model


    def _read_group_stage_ids(self, stages, domain, order):


        search_domain = [('id', 'in', stages.ids)]


        if 'default_project_id' in self.env.context:


            search_domain = ['|', ('project_ids', '=', self.env.context['default_project_id'])] + search_domain


        stage_ids = stages._search(search_domain, order=order, access_rights_uid=SUPERUSER_ID)


        return stages.browse(stage_ids)

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Ali Yasser (ary)
En İyi Yanıt

a cleaner version of the solution, also adapted to be able to work with v13:

@api.model
def read_group(self, domain, fields, groupby, offset=0, limit=None, orderby=False, lazy=True):
    """ Override read_group to always display all states. """
    group_by_field = 'stage'
    group_by_selection = self._fields[group_by_field].selection
    if groupby and groupby[0] == group_by_field:
        # Default result structure
        read_group_all_states = [{
            '__context': {'group_by': groupby[1:]},
            group_by_field + '_count': 0,
            '__domain': domain + [(group_by_field, '=', selection_key)],
            group_by_field: selection_key, }
            for selection_key, selection_value in group_by_selection]
        # Get standard results
        read_group_res = super(Repairs, self).read_group(domain, fields, groupby, offset=offset, limit=limit, orderby=orderby, lazy=lazy)
        # Update standard results with default results
        result = []
        for selection_key, selection_value in group_by_selection:
            res = list(filter(lambda x: x[group_by_field] == selection_key, read_group_res))
            if not res:
                res = list(filter(lambda x: x[group_by_field] == selection_key, read_group_all_states))
            result.append(res[0])
        return result
    else:
        return super(Repairs, self).read_group(domain, fields, groupby, offset=offset, limit=limit, orderby=orderby, lazy=lazy)
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