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defaultinheritexpensemany2manylimit
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frahh

Hello, I want to inherit the hr.expense and change the existing fields.
for example, I want the tax_ids field (Many2many) to be limited to 1. The user can only select one tax type.
Also, how can I set the default account for the expense. I want to set a particular account for expenses that I have created in the chart of accounts to be the default one for my model
Please help me on this

Thank you

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Mily Shajan
Best Answer

Hi 

You can use api.constrains decorator, it will help to limit the tax to 1 

check the following code 

class HrExpense(models.Model):
    _inherit ='hr.expense'

    @api.constrains('tax_ids')
    def _check_tax_ids_lines(self):
        for record in self:
            if len(record.tax_ids) > 1:
                raise ValidationError('You can have only one tax.')



Regards

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frahh
Author

Thank you!

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Cybrosys Techno Solutions Pvt.Ltd
Best Answer

Hi,

To assign a default expense account, add a default attribute to the corresponding field, and add constraints for tax fields to prevent adding more than one tax to form.


class HrExpense(models.Model):
    _inherit ='hr.expense'
def _default_account_id(self):
    return self.env['account.account'].search([
        ('account_type', 'not in', ('asset_receivable', 'liability_payable', 'asset_cash', 'liability_credit_card')),
        ('company_id', '=', company_id)], limit=1).id

account_id = fields.Many2one( 'account.account',  compute='_compute_account_id',store=True,
    readonly=False,  precompute=True,  string='Account',   default=_default_account_id,
    domain="[('account_type', 'not in', ('asset_receivable', 'liability_payable', 'asset_cash', 'liability_credit_card')), ('company_id', '=', company_id)]",   help="An expense account is expected" )

@api.constrains('tax_ids')
def _check_tax_ids(self):
    for record in self:
        if len(record.tax_ids) > 1:
            raise ValidationError('You can add only one tax.')

Hope it helps,

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