How can i remove constraints of model by inheriting that model?

Question

From the Accounting -> supp/cuastomer payments, journal entry is mandatory field. I want to remove that constraint by inheriting the module "account.voucher". How can i do this?

Janeesh · Accepted Answer

Journal entry field is not a mandatory field in customer/supplier payments. It is many2one field account.move object and that is automatically created on Validating the payment. If you are talking about Journal field, then we cannot make that field non-mandatory as this field is a mandatory field in journal entry which is created automatically on Validation.

Mandatory fields we are giving in two ways. Either in python file on field declaration or in xml file. If required=True is given in pytho

Roy Mathew · Answer

Mandatory fields we are giving in two ways. Either in python file on field declaration or in xml file. If required=True is given in python file, we have to rewrite the field in our module without giviong required attribute. If it is given in xml file, we have to inherit and change the attribute.

Prakash · Answer

If You want to remove the mandatory field then

copy the original column fields in your customer model change the fields parameter* required=False*

Example

class class_name(osv.osv):
_inherit = "model.name"
_columns = {

'col_name'      : fields.char('Name', size=120, *required=False*),
}

class_name()

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